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| # | Company | Amount | Status |
|---|---|---|---|
| 1 | ₹19.6 Craccepted-aoc | accepted-aoc |
Tender Value
₹19.2 Cr
EMD Value
₹20 L
Closing Date
27 Jan 2026, 8:30 pmClosed
Chamundeshwari Electricity Supply Corporation Limited
Dinesh.H.R
Establishment of 33/11 KV GIS Sub Station at Malai Mahadeshwara Hills in Hanur Taluk, Ch.Nagar District
CESCOM/2025-26/EL/WORK_INDENT485
CESCOM/2025-26/EL/WORK_INDENT485
Open
Sub-Station
Two Tender Document System(Two Cover)
CESCOM Superintending Engineer Projects Corporate Office Mysuru
7 documents required · 6 mandatory · 1 optional
The Bidder should have successfully been awarded and commissioned atleast one 33kV and above voltage class Gas Insulated Sub-Station of value not less than Rs.5.30 Crores i.e 50 percent of the estimated value of contract/amount put to tender, in any of the previous five financial years i.e.,2020-21, 2021-22, 2022-23,2023-24and 2024-25 in any ESCOMs/Government Electrical Utilities/Any Government Organization/PSUs in Karnataka. Note-Updated to the FY in which the tenders are invited. The value of the completed works shall be given a weight of 10 percent per year to bring them to the price level of the FY in which the tenders are invited. DWA and Work completion Certificate issued duly indicating the amount of the work, issued by an officer not below the rank of Executive Engineer or equivalent officer of the concerned ESCOMs/Government Electrical Utilities/Any Government Organization/PSUs shall be uploaded.
The Bidder should have executed the following minimum tendered quantity in any ESCOMs/Government Electrical Utilities/Any Government Organization/PSUs during the previous five financial years(i.e.,2020-21, 2021-22,2022-23,2023-24& 2024-25).33kV and above voltage class HT Lines-50%of the quantity proposed in the Tender.DWA and Work completion Certificate issued by an officer not below the rank of Executive Engineer or equivalent officer of the concerned ESCOMs/Government Electrical Utilities/Any Government Organization/PSUs shall be uploaded
Bidder who meets the above specified minimum qualifying criteria, will only be qualified, if their available tender capacity is more than the total tender value. The available tender capacity will be calculated as under-Assessed available tender capacity is equal to (AxNx1.5-B),A is equal to Maximum value of works executed in any one year during the last five years (updated to FY 2024-25 price level), taking into account the completed as well as works in progress. N is the Number of years prescribed for completion of the works for which tenders are invited. B is the Value, at FY-2024-25 price level, of existing commitments and on-going works to be completed in ESCOMs during the proposed contract period. The statements showing the value of existing commitments and on-going works as well as the stipulated period of completion remaining for each of the works listed should be countersigned by the Employer in charge, not below the rank of an Executive Engineer or equivalent or Charted Accountant.
The Annual Turnover of the Bidder in at least Two financial years should not be less than the Amount put to tender Rs 19.22Crores during preceding five financial years(i.e.,2020-21,2021-22,2022-23,2023-24& 2024-25).Note-Updated to the FY in which the tenders are invited. Financial turnover of previous years shall be given a weight of 10% per year to bring them to the price level of the FY in which the tenders are invited Audited Annual Accounts statements such as P&L statement, Balance sheets for the 2020-21,2021-22,2022-23,2023-24&2024-25 shall be uploaded.
The Liquid Assets and/or availability of credit facilities of not less than Rs. 2.41Crores(12.5% of the amount put to tender).The cash at Bank, Term Deposits and the availability of fund-based credit facility shall be supported by a certificate issued by any Nationalized/Scheduled Bank with whom the bidder is having banking facilities shall be up loaded. In case of Fund based credit facility, the certificate issued by the Nationalized/Scheduled Bank duly mentioning sanctioned limits, funds utilized so far and balance available after the date of notification of this tender or at a later date, before submission of the bid is to be uploaded.If the bidder has banking with more than one Bank, then the available liquid assets balance mentioned above on a particular date i.e.,after the date of notification of this tender or any later date before submission of bids shall be the same date for all the banks.
₹7,500
₹20 L
27 Jan 2026
12 Dec 2025
28 Jan 2026
24 Dec 2025
22 Dec 2025
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
NOTE* For detailed scope of the work please refer Bid Documents.
THE FOLLOWING DOCUMENTS [DULY SIGNED BY AUTHORISED PERSON, WHEREVER NECESSARY] ARE TO BE UPLOADED AND BANK GUARANTEE/INSURANCE SURETY BOND TOWARDS EMD OVER AND ABOVE RS.1.00LAKH AS PER ANNEXURE-II OF THE BID DOCUMENT SHALL BE SENT IN ORIGINAL TO SUPERINTENDING ENGINEER, PROJECTS, CORPORATE OFFICE, CESC, MYSURU SO AS TO REACH THIS OFFICE AFTER THE LAST DATE OF SUBMISSION OF BID AND ON OR BEFORE THE DATE & TIME NOTIFIED FOR OPENING OF TECHNO COMMERCIAL BIDS, FAILING WHICH THE BID WILL NOT BE OPENED. 1) NO DEVIATION CERTIFICATE. 2) EMD/BID SECURITY AS DETAILED IN CLAUSE NO. 13 of ITT. 3) BANK GUARANTEE issued either by a Nationalized/Scheduled Bank OR INSURANCE SURETY BOND issued by Insurance Company authorized by IRDAI TOWARDS BALANCE EMD/BID SECURITY. (For the balance EMD above Rs. 1.00Lakh) - as detailed in Clause No. 13 of ITT-The Bidder shall scan the Bank Guarantee/INSURANCE SURETY BOND towards EMD and upload the same in the prescribed format in the slot specified for “EMD and Tender Fee Payments” in the e-procurement portal to enable the owner for verification of EMD BG/ISB at the time of opening of Techno Commercial Bid, failing which the offer will be rejected. 4) LETTER OF UNDERTAKING. 5) CONSORTIUM AGREEMENT 6) POWER OF ATTORNEY . 7) ANY OTHER AGREEMENTS /UNDERTAKINGS/SELF DECLARATIONS SPECIFIED IN THE TENDER.
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
BID PROPOSAL SHEET
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. :
Bid Proposal Reference of Bidder:
Person to be contacted :
E-Mail Address:
The General Manager
Projects, Corporate Office,
CESC, Mysuru-570017.
Sub : Proposal for
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
a) * We have submitted bid as individual Bidder. (Indicate Name of the Individual Bidder)
b) * We have submitted bid as Consortium of following Bidders. (Indicate Names of the Consortium members )
Name of the Consortium Scope / Participation of each Consortium Partner
(* Fill-up whichever is applicable)
1 We, the undersigned Bidder, having read and examined in detail the specifications and all the Bidding documents of the said work and hereby propose to design, manufacture/fabricate, shop test, supply on FOR site basis, and carry out the erection, testing and commissioning including civil, structural and architectural works for
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
2 PRICES AND VALIDITY :
2.1 We declare that the Prices stated in our Proposal are in accordance with subject Bid Documents (including Clause No.40 of "Conditions of Contract (CC)" & Clause No.12 of Instruction to Tenderers (ITT) of Bid Documents. We further declare that all Ex-works price/CIF components of Spares, Maintenance and Testing Equipments and other charges viz., Freight and Insurance, Type Test charges and other charges stated in our proposal shall be as per the Tender conditions. All the Price and other terms and conditions of this Proposal are valid during the Performance of the Contract.
2.2 All Duties, such as Custom Duties on imports, Levies, Surcharge/Cess etc., if any applicable on the transaction excluding GST are included in the Bid Price and shall be to Our account and the Owner is not having any liability whatsoever on this account, whatever may be the contrary elsewhere in the Bid documents. However the component of Duties included in the Bid Price are separately indicated in Schedule - 2 for TDS purpose. We further confirm that our Bid Prices as quoted in Schedule-I, include all import Duties and levies including Licence fees lawfully payable by us on imported items and all other Duties and Levies applicable on Bought-out Components, Materials, Equipment and other items and confirm that any such Duties and Levies additionally payable shall be to our account. We further confirm that, no Sales Tax in any form shall be payable by Owner either for Bought-out items which are despatched by our Sub-Suppliers directly to the Project Site or for items Supplied directly by us. We confirm that, the Prices quoted by us are excluding GST.
2.3 We declare that we have noted and considered Clause No.39 of Conditions of Contract (CC ), Clause No. 11.11 of Instruction to Tenderers(ITT) of Bid Documents regarding Taxes and Duties and quoted our Prices accordingly. We further agree for TDS as per Statutory stipulations.
2.4 The Bid Prices, the Price components of the various items in our Scope of Supply, Erection including Testing & Commisisoning, Civil and Mandatory spares is quoted in Itemwise Financial Bid in KPP Portal for this proposal..
3 CONSTRUCTION OF THE CONTRACT : We, declare that we are making the Offer on the basis of Single Contract for the entire Scope of the Package in accordance with Clause No.26.2 of Instruction to Tenderers (ITT) of Bid Document.
4 We having studied Clause No.39 of Conditions of Contract (CC ), Clause No. 11.11 of Instruction to Tenderers(ITT) of Bid Documents , relating to Tax and we hereby, declare that if any income-tax, surcharge on income tax or any other corporate tax is attracted under the law, we agree to pay the same.
5 Bid Security/ EMD : We have enclosed a Bid Security through e-Payment mode for a sum of Rs.1.00Lakh and remaining amount of Rs..........Lakhs ( above Rs.1.00 Lakh) in the form of Insurance Surety Bond (ISB) issued by Insurance Company authorized by Insurance Regulatory and Development Authority of India (IRDAI) OR in the form of Bank Guarantee in original valid for a period of 225 days from last date of bid submission and liable to be forfeited in accordance with Bid Documents. (Mode of Payment towards EMD is as detailed in CLAUSE NO. 13 of ITT & Clause No. 5 of NIT)
We have also ensured that the above Bid Guarantee furnished by us is in line with the Bid Documents and complete in respect of following :
1. Value of Non judicial Stamp Paper purchased in the name of executing Bank is as per Stamp Act.
2. Power of Attorney Number and Date as well as Signature and Full Name and Designation of Executant along with Bank's Stamp are there.
3. Signature, Full Name, Designation and address of Witness are there.
4. Completed Mailing address of the Head Office of the Bank is indicated.
6.1 We declare that the Works shall be performed strictly in accordance with the Specifications and Documents except for the variations and Deviations, all of which have been detailed out exhaustively in the following Schedules, irrespective of whatever has been stated to the contrary anywhere else in our Proposal.
a Commercial Deviations Schedule Schedule - 5
b Technical Deviations Schedule Schedule - 6
6.2 We further confirm that Specified Stipulation of following Clauses are acceptable to us and No Deviation / Exceptions are taken on any account whatsoever in the following Clauses.
a. Terms of payment Clause No. 37 of Section-5,Conditions of Contract (CC) and Clause No.8 of Special Conditions of Contrac (SCC)
b. EMD/Bid Security Clause No. 6, Section :1, Invitation for Tenders (IFT) and Clause No. 13, Section :2, Instruction to Tenderer (ITT)
c. Contract Performance Guarantee Clause No. 29 of Section:2, Instruction to Tenderers (ITT).
d. Penalty for delay Clause No. 41 of Section-5 : Conditions of Contract (CC).
e. Price Basis/ Price adjustment Clause No. 40 of Section-5 :Conditions of Contract (CC).
f. Defects Liability Period/Guarantee Clause No. 10 of Section-5 Special Conditions of Contract (SCC)
g. Work Schedule Clause No.17 of Section:5 Conditions of Contract (CC)
h. Taxes and Duties Clause No. 11.11 of Section-2: Instruction to Tenderers (ITT).
Further, we agree that additional conditions, if any, found in the Proposal Documents other than those stated in Deviation Schedules, save that pertaining to any rebates offered, shall not be given effect to.
7 PERFORMANCE GUARANTEE ; We declare that the ratings and performance figures of the equipment to be supplied and erected by us are guaranteed. The Guaranteed particulas of different equiment in our Scope are enclosed in Data Requirement Sheets.
8 BID PRICING : We further, declare that the Prices stated in our Proposal are in accordance with your ITT & SCC & all other relevant clauses of Bid Documents.
9 PRICE ADJUSTMENT : We declare that the Prices quoted by us are in accordance Clause No. 40 of Section-5 :Conditions of Contract (CC)
10 SPECIAL TOOLS AND TACKLES : We have given a list of Special Tools and Tackles in Schedule - 7 and Prices thereof are included in our lumpsum Bid Price. We further agree that any items of Special Tools and Tackles, though not included in the aforesaid list, but required for effective Erection, Testing, Commissioning & Operation of the Equipments of Substations & Transmission lines shall also be furnished by us, at no extra cost to you.
11 ADDITIONAL INFORMATION : In addition to the information called for in these Proposal Sheets, we have included with this Proposal, additional information as listed in Schedule - 8. We further confirm that such additional information does not imply any additional deviation beyond those covered in Schedule - 5 & 6 and in case of any contraction between these additional information and other provisions of Bid, the later will prevail.
12 QUALIFICATION DATA : We confirm having submitted the Qualification Data, as required by you in your Bid Documents in e-Procurement Portal along with this Proposal. Further we have filled in the information for Qualification Requirements in Schedule 9. In case you require any further information in this regard, We agree to furnish the same in time.
13 WORK SCHEDULE : If this Proposal is accepted by you, we agree to submit Engineering Data, Provide Services and complete the entire Work from time to time, in accordance with Schedules indicated in the Proposal. We fully understand that the Time Schedule stipulated in this Proposal is the essence of the Contract, if awarded. The completion schedule of the various Major Key Phases of the Work is indicated in Schedule - 11.
14 CONTRACT PERFORMANCE GUARANTEE ; We further agree that if our Proposal is accepted, we shall provide an irrecoverable Contract Performance Guarantee, of value equivalent to Five percent (5%) of the Amount Put to Tender (Excluding GST) plus additional security for unbalanced tenders in accordance with Clause 29 of Instructions To Tenderers (ITT) of the tender valid up to the end of ninety (90) days after the end of the Contract Guarantee Period mandatorily in the form of Insurance Surety Bonds (ISBs) issued by Insurance Company authorized by IRDAI (OR) in the form of electronic Bank Guarantee (e-BG) from the Banks which are integrated with NeSL in the form attached as Annexure-III (Section 4: Formats of Annexures) in your favour in accordance with Clause 25.5 of ITT and Clause 43 of the CC (Conditions of Contract), as per the format given in Section 4 and enter into a formal agreement with you within Twenty (20) days from the date of issue of Letter of Intent to Award the Contract.
15 We, the partners of the Consortium whose Signatures are appended below, shall be liable jointly and severally for the execution of the Contract(s), in the event of Award, in accordance with the terms of Contract(s). The Lead Partner for this Bid - M/s .................................................................................... on behalf of the Consortium, is submitting the Bid. The Power of Attorney in favour of M/s .......................................................................................is enclosed.
16 BID PRICE : We declare that our lumpsum Price for the entire scope of work specified in the specifications and documents, shall be as indicated in Schedule - 1.
17 CHECK LIST : We have included a Checklist duly filled in Schedule 22
18 We, hereby, declare that only the Persons or Firms interested in this Proposal are named herein as Principals and that no other Persons are interested in the Proposal or in the Contract to be entered into, if we are awarded the Contract, and that this proposal is made without any connection with any other Person, Firm or Party likewise submitting a Proposal and that this Proposal is in all respect for and in good faith, without collusion or fraud.
19 We declare, in case our bid is accepted, that until a formal Contract is prepared & executed, this bid together with your written letter of acceptance thereof and your notification of award /Letter of Intent to Award the Contract shall constitute a binding contract between us. We further understand that you are not bound to accept the lowest or any bid you may receive.
Thanking you, we remain,
Yours faithfully,
Place Printed Name
Business Address Country of Incorporation (State or Province to be indicated)
Name and Address Principal Officer
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
FILL ONLY IN LIGHT BLUE COLOURED CELLS.
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager,
Projects, Corporate Office,
Dear Sir, CESC, Mysuru-570017.
We declare that in terms of Clause-11 of ITT & all other relevant clauses of Bid Documents, the following are our lumpsum price in Rupees for the entire scope of work as specified in the Specifications and Documents.( Inclusive of all Duties & excluding GST).
Total Lumpsum Price : ( In Figures)
Total Lumpsum Price : ( In Words)
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 2 (1 of 2)
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
FILL ONLY IN LIGHT BLUE COLOURED CELLS.
Summary of Price Components
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
Summary price components for identified in accompanying specifications
( Name of the Work) as per the scope identified in accompanying specifications.
Sl no Description Amount in Rs.
Establishing sub-station Construction of Line
A Material / Equipment Price (including Packing & Forwarding charges) in the Scope of the Contractor
Ex-works including all duties (excluding GST) [As per scheduless]
B Mandatory spares price (including packing & forwarding charges)
Ex-works including all duties (excluding GST) (As per schedules)
C Supply portion total FORD price [A+B]
D Erection portion:
i) Total charges for Erection, Testing & Commissioning of all Supply items [as per scheduless]
ii) Total charges for entire civil works [ as per Schedules]
iii) Total civil works, erection, Testing and commisioning charges D (i)+(ii)
E Total Bid Price = C+D(iii) In figures : Rs.
Total Bid Price in Figures : Rs.
Total Bid Price in words : Rupees
Note: The erection charges shall include the charges for taking delivery at Owner's store, unloading, handling, storage, erection, testing and commissioning of all equipments.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 2 ( 2 of 2 )
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Fill IN LIGHT BLUE COLOURED CELLS.
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
Estimates of Indian Taxes, Duties and Levies included in the Total Bid Price are as follows:
SL. No. Description of Applicable Tax (Excluding GST)/ Duty / Levy Establishing sub-station Construction of Line
Rate of Tax(Excluding GST) / Duty / Levy Amount of Taxes(Excluding GST) / Duties in Rupees Rate of Tax (Excluding GST)/ Duty / Levy Amount of Taxes (Excluding GST)/ Duties in Rupees
1 SGST/UTGST Applicable taxes(Excluding GST), duties & levies prevailing as on the last date of bid submission shall be quoted
i. Supply Portion
ii. Erection Portion
iii. Civil Portion
i. Supply Portion
ii. Erection Portion
iii. Civil Portion
i. Supply Portion
ii. Erection Portion
iii. Civil Portion
6 Building and other construction workers welfare Cess for Supply, Erection and Civil Portion works
8 a. Applicable Customs Duty (*) (Bidders shall also clearly indicate the breakup of Customs duty such as BCD, Cess,etc.,)
b. If there is any existing Treaty between India and the country from where the goods required for this project are proposed to be imported, then copy of the treaty shall be uploaded.
9 Other Taxes & duties if any (Specify) **
10 Other Taxes & duties if any (Specify) **
11 Total (Sum of 1 to 10)
(*) In case of CIF portion of Supply.
** Please Specify the nature of the other Taxes alongwith the details in the "Rate" Column.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 2A : SCHEDULE OF DISCOUNT
SHEET FOR TECHNOCOMMERCIAL OPENING (UN - PRICED)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
FILL ONLY IN LIGHT BLUE COLOURED CELLS. Fill as "YES" against Price columns in case Prices are indicated in the Price sheets
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
We hereby offer an unconditional discount on our quoted price in Schedule 2 (1 of2) as under. Any discounts offered anywere else in Bid shall not be considered.
Sl.No Nature of Discount Establishing Substation Construction of Line
Percentage of discount Amount(in Rs.) Remarks Percentage of discount Amount(in Rs.) Remarks
I Supply Schedules
II Erection Schedules
III Civil Works Schedules
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Details of payments made in the form of Credit card/Debit card/NEFT/RTGS/OTC (over the counter) as per the tender conditions should be keyed in against column no. 3 (a) . BG/ISB Amount, BG/ISB No. and date, Name and address of the Bank issuing the BG/ Insurance company issuing ISB, validity of the BG/ISB should be keyed in against column no. 3 (b) .
FILL ONLY IN LIGHT BLUE COLOURED CELLS.
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017 0
STATEMENT OF COMMERCIAL TERMS AND CONDITIONS
Sl. No. Particulars Details
1 Bid proposal form uploaded.
2 No deviation certificate uploaded
3. a). EMD / Bid Security Bids shall be accompanied by bid security (EMD); 1) Up to Rs.1.00Lakh The following modes of payment will be provided as a part of e-Payment services. • Credit Card/Debit Card • Net Banking • NEFT/RTGS • Over-the-Counter (OTC) • IMPS For further detail regarding mode of e-payment of EMD in e-procurement platform, contact e-procurement cell, Government of Karnataka.
b). EMD amount above Rs.1.00Lakh by Bank Guarantee/Insurance Surety Bond
4 Validity of the Bid.
5 Qualifying Requirements.
6 Financial capability
8 All Duties (Excluding GST)
9 Completion Schedule
11 Payment Terms
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 3A(i) - Station Supply portion
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN No. :
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
Sl. No Material Unit Qty 'Own maufactured'/ 'Bought out'
SS1 STATION SUPPLY PORTION-Work Indent-485: Power Transformers: 33/11KV, 5MVA, DELTA / STAR, DYn11. 3Ph, 50Hz, Core type winding with cable end type bushings on 33 KV side, OLTC, RTCC Panel etc.complete filled with Transil oil and 10% spare oil. Nos 2
SS2 Distribution Transformer: 63KVA, 11/443V 3 Phase 50 Cycles stacked CRGO Core DT BEE Star 2 (5 Star) Rated with Oil Al. Winding (Provided with Tap changer). No. 1
SS3 Transformer module 36 KV: Each module comprising of, 3 phase 36 KV 1200 A breaker workable at 45 degree centigrade 36 KV,1200A solid insulated copper Bus bar, 36 KV Three Phase,50HZ 1200A,31.5 KA isolator/ earth switches Single phase 36 KV voltage class ,3 core multi ratio voltage transformer,36 KV Current Transformers of ratio 400-200/1-1-1A, cable terminations, Capacitance Voltage System Protection & control System and Mechanical safety & interlocking systems as per technical Specifications. Nos 2
SS4 36KV LINE module : Each module Comprising of the following:3 phase, 36 KV, 1200 A breaker workable at 45 degree centigrade 36 KV,1200A solid insulated copper Bus bar 36 KV, Three Phase,50HZ 1200A,31.5 KA isolator/ earth switches Single phase 36 KV voltage class,3 core multi ratio voltage transformer 36 KV Current Transformers of ratio 600-400/1-1-1A cable terminations Capacitance Voltage System Protection &control System Mechanical safety & interlocking systems as per technical Specifications. No. 1
Circuit Breakers: CB with operating mechanism & marshelling box, supported structure,terminal connectors etc.,
SS5 11KV PCVCB, 350MVA, 25KA, 1250A Outdoor type incomer Panel (SCADA Compatible). Nos 2
SS6 11KV PCVCB, 350MVA, 25KA, 800A, Out door type Feeder Panel (SCADA Compatible). Nos 6
SS7 11KV PCVCB, 350MVA, 25KA, 800A, Out door type Feeder Panel for Capacitor Bank (SCADA Compatible). Nos 2
SS8 Annunciator Panel for 2I/C+8F + 1BC for PCVCB. set 1
CTs: Oil Filled CT's 0.2s Class with Terminal Connector etc.
SS9 11KV CTs Outdoor 600-300/1-1-1A (I/C 31.5KA SWG) Nos 6
SS10 11KV CTs Outdoor 200-100/1-1-1A (For Feeders 25KA SWG) Nos 18
SS11 11KV CTs Outdoor 400-200/1-1-1A (For Capacitor Bank 31.5KA SWG) Nos 6
SS12 11KV NCT of ratio 600-300/1-1-1A for REFR protection. Nos 2
SS13 11KV Potential Transformers 11KV√3 110V/√3 - 110V/√3 - 110V/√3 (3 Phase) Nos. 6
ACSR Conductors:
SS14 Lynx Conductor. Kms 0.5
SS15 Coyote Conductor. Kms 0.75
SS17 9 Mtr. Long 145 Kg W/L RCC pole Nos 22
SS18 9 Mtr. Long 150Kg W/L RCC Square pole Nos 12
SS19 8 Mtr. Long 115 KG W.L. RCC Poles for yard lighting Nos 12
SS20 33KV, 800A, 25KA Class Double break Upright mounting type with earth switch. (Live point height 3750mm) set 2
SS21 Earth Bonds (Copper) 450mm Long Nos 25
SS22 11kV 400A Special/Roaster GOS set 6
SS23 11KV 400A, Double Break GOS set 11
SS24 11kV 200A, Single Break GOS. set 1
SS25 H-Frame Set for fixing 11kV GOS (GI). Set 7
SS26 Insulated GOS Operating Rods. No. 7
Lightning Arrestors.
SS27 30KV, 10KA Lightening Arrestor, Normal Duty Polymeric Discharge Class-2. Nos 6
SS28 10KV 5KA, LA Polymeric type with Ground Disconnector. Nos 27
Battery Set/Battery Charger:
SS29 Battery Set (Plante/Grid Plate Type) 110V, 200AH. set 1
SS30 Battery Charger 110V, 15A float & 30A boost (with float & boost battery charger as per technical specifications). set 1
SS31 Capacitor Bank with 0.2% Series reactor & NCT 12.1kV, 2.9MVAR star connected Capacitor Bank Design, engineering, supply, erection of Capacitor Bank with internal fuses, terminal connector, Neutral CTs & 0.2% series reactors on neutral side with elevating /mounting structure and with 10% spare capacitors complete (This does not include breaker, panel, civil works like excavation and foundation concreting works) set 2
SS32 Post Insulators solid core 33 KV class Nos 9
SS33 Post Insulators solid core 11 KV class Nos 12
SS34 33kV 90 KN polymer disc insulators Nos 25
SS35 33KV Polymeric Pin Insulators. Nos. 12
SS36 11 kV 5KN composite/polymeric Pin insulators (24mm Dia FRP Rod). No 36
SS37 11 kV 45KN composite/polymeric insulators No 70
SS38 HG Fuse Unit, 11kV with Solid Core Insulators sets Set 1
Out door structures
SS39 For 33KV Isolators - 0.242 MT. (i.e. Rs.5723/MT) Set 2
SS40 For 11KV NCT - 0.142 MT Set 2
SS41 S.M.Rail and M.S. angle iron for Transformer plinth (2 nos. of 3m long) SM rail and 65x65x6 mm angle iron 8 mtr long 0.22 MT each. Set 2
11KV ODS: Beam out of chanel for stringing conductor (High Tensile Steel/IS 4759-1968)
SS42 1B1 - 7.45 mtrs long wt 0.068 MT (channels 100x50mm) (0.068*135000) Nos 24
SS43 1B2 - 4.0 mtrs long wt 0.036MT (channels 100x50mm) Nos 24
SS44 Angles 65x65x6 mm of 2.50 mtrs long for fixing 11KV GOS handle support (wt 0.010 MT) Nos 18
SS45 Angles 65x65x6 mm of 5.0 mtrs long for Auxiliary Transformer side belts (wt 0.020 MT) Nos 2
Grounding of equiments
SS46 CI Pipes of 100 mm ID 13mm thickness, 2.75 Mtrs with 2 part clamp out of GI Flat 50x6mm contineously welded alround the pipe using cast iron welding electrodes (as per approved R&D KPTCL drawing) Nos 30
SS47 Sodium Bentonite Clay Kgs. 3000
Hardware Materials
SS48 Double Pole TC Set complete for 63kVA Star Rated Transformer (Including 2Nos of Poles 9Mtr RCC 145Kg WL). CDS-25 Set 1
LT Wiring (For Aux Transformer)
SS49 Al Lead Wire - 95Sq.mm Mtrs 20
SS50 Copper Lugs - 95Sq.mm. Nos 8
SS51 Spacers for DTC Wiring. Nos 3
SS52 Fish Plate with complete Nos 6
Bolted Type Tension Clamp
SS53 Single Lynx ACSR Conductor 70/90 KN 16mm Nos. 25
SS54 Single Coyote ACSR Conductor 70/90 KN 16mm Nos 70
Bolted Type Suspesion Clamp
SS55 Single Lynx ACSR Conductor 70/90 KN 16mm Nos 6
SS56 Single Coyote ACSR Conductor 70/90 KN 16mm Nos 6
Post Insulator Clamps
SS57 Single Lynx ACSR Conductor 127/76mm Nos 9
SS58 Single Coyote ACSR Conductor 127/76mm Nos 18
"T" Clamp for ACSR Conductor
SS59 Single Lynx to Single Lynx Nos 23
SS60 Single Coyote to Coyote Nos 54
SS61 Coyote to Coyote (C Type Wedge Connector) Nos 18
Terminal connector clamp for ACSR Conductor
SS62 Single Lynx Nos 54
SS63 Single Coyote Nos 160
SS64 Eye Bolts Nos 30
SS65 PG Clamps for Coyote Nos 36
SS66 For Coyote ACSR Nos 30
SS67 For Lynx ACSR Nos 15
SS68 AC Distribution Box Single front (outdoor type) 6 Terminal one I/C of 100A MCCB 20kA + 6 O/G MCB 16 A + 1 O/G of 100A, HRC fuse Nos 1
SS69 LTAC/ACDB Panel (Indoor), 415V as per technical specification comprising of voltmeter and ammeter, 1 I/C MCCB 200A + 2 nos. 3-Phase 63A O/G SFU, + 2 nos. 3 Phase 32A O/G SFU 100A + 14 O/G SFU, 6 nos. 3 Phase 16A SFU etc. complete Nos 1
SS70 DC Distribution panel (Outdoor) as per technical specification comprising of earth fault indicator, indication circuit for AC mains failure, 1 no. 100A SFU for I/C + 12 nos. 32A SFU for O/G Nos 2
33 KV EHV cable and accessories (Market Rate/SR)
SS71 33 KV 3 core 400 Sqmm XLPE Aluminium U.G.Cable Mts 150
SS72 HS type, indoor type termination kit suitable for 33 KV 3 core 400 sqmm XLPE U.G.Cable Kit 3
SS73 HS type, outdoor type termination kiit suitable for 33 KV 3 core 400 sqmm XLPE U.G.Cable Kit 3
Power Cable: 1.1kV Armoured Al. Cable. (With Glands/Lugs/ Ferruels)
SS74 1.1kV 4Core 95Sq.mm Aluminium Cable, . Mtrs 150
SS75 1.1kV, 4Core 6Sq.mm Aluminium Cable for street light Mtrs 200
Cu Control Cable with Accessories: (With Glands/Lugs/Ferruels)
SS76 4 Core 6 Sq.mm Mtrs 800
SS77 2 Core 6 Sq.mm Mtrs 200
SS78 19 Core 2.5 Sq.mm Mtrs 1000
SS79 4 Core 2.5 Sq.mm Mtrs 600
SS80 2 Core 2.5 Sq.mm Mtrs 1200
SS81 2 Core 10 Sq.mm Mtrs 75
PVC Pipes: Providing PVC ringtite pipes conforming to IS 4985:2000.
SS82 25 mm dia Mtrs 75
SS83 32 mm dia Mtrs 200
SS84 63 mm dia Mtrs 200
SS85 75 mm dia Mtrs 50
SS86 110 mm dia Mtrs 150
Bends: Supply and delivery at site special moulded variety PVC bend as per IS 7834/ 1987 and fabricated as per IG124/ 1984 with ISI mark with its latest amendments.
SS87 25 mm dia Nos 38
SS88 32 mm dia Nos 15
SS89 63 mm dia Nos 100
SS90 75 mm dia Nos 25
SS91 110 mm dia Nos 75
Faraday's caging:
SS92 Earth Wire 7/3.65 mm G.I. Wire for Ground Conductor Mtrs 250
SS93 Number Plates Nos 10
SS94 Danger Boards Nos 11
SS95 Phase Plates Each Nos 9
SS96 Name plates for equipment/Earth pit Nos 50
SS97 Name plate for feeders and capacitor bank Nos 10
Fire Fighting Equipments with necessary mounting stand:
SS98 Foam type extinguisher(Mech) 9.00 Ltr. Capacity Nos 8
SS99 Carbon dioxide type 4.5Kg capacity Nos 6
SS100 Sand type G.I.Bucket 9 Ltr. Capacity. Nos 6
SS101 Steel Mounting stand for buckets.(Each stand for 3 buckets) Nos 2
Station Service Equipments:
SS102 Single line diagram Nos 1
SS103 Name Board for S/S Nos 1
SS104 First Aid Box Nos 2
SS105 Rubber mat 10mm Thick (1x2 mtr as per specification) Nos 16
SS106 Shock Treatment / First Aid charts with lamination. Nos 4
SS107 Drinking Water Purifier RO Nos 2
SS108 Door locks Nos 4
SS109 Wall clock Nos 2
SS110 Calling bell Nos 2
SS111 Supply & fixing Ceiling Fan (48" Sweep (1200 mm) Regular model) Nos 4
SS112 Supply & fixing Exhaust Fan of 1440 RPM of 300 mm (12") size. Nos 2
SS113 Steel Almirah 6 1/2 feet Nos 2
SS114 Executive Officer table Nos 1
SS115 Office table Nos 1
SS116 Steel slotted angle rack (small size) Nos 4
SS117 Dust bins. Nos 4
SS118 Executive revolving chair Nos 1
SS119 S' type office chairs Nos 4
Maintenance Tools and Plant.
SS120 Telescopic ladder Aluminium 6 Mtr. Height Nos 1
SS121 Ring spanner set - 12Nos Per Set Nos 2
SS122 Tube spanner set - 12Nos Per Set Nos 2
SS123 Rubber hand gloves (15 KV Seamless confirming to ISS) Pairs 10
SS124 Rubber shoes knee hight Pairs 2
SS125 Insulated cutting player 12" size Nos 6
SS126 Insulated cutting player 8"size Nos 4
SS127 Screwdriver 18 inch Nos 6
SS128 Screwdriver 12 inch Nos 4
SS129 Hammer 8 Ibs. Nos 2
SS130 Hammer 2 Ibs. Nos 2
SS131 Box spanners - 12Nos Per Set Set 2
SS132 Allen keys set Set 2
SS133 Insulation Tester (Megger) 500V Rating Nos 1
SS134 Digital Megger 2.5kV to 5kV rating Nos 1
SS135 Digital Clamp Multimeter (Tong tester) Nos 2
SS136 Hydro meter for recording specific gravity of battery. Nos 4
SS137 Specific gravity correction chart Nos 1
SS138 Wall mounting type holder for hydrometers Nos 1
SS139 Grounding sticks Extendable upto 18ft (3Nos of Each 6ft) 3Nos per Set Set 6
SS140 Manila rope 3/4 inch (One bundle 100m) Set 1
SS141 Hose pipe heavy duty 8.5mm Mtrs 50
SS142 Silica Gel Kg 20
SS143 Adjustabale Screw Spanner 12 Inches Nos 2
SS144 Rubber appron Nos 5
SS145 Pippette Nos 1
SS146 Protective Goggle Nos 2
SS147 Rain Coats with duck back Nos 4
SS148 Glass Funnel Nos 3
SS149 Hickery rods Nos 6
SS150 Safety belts Nos 6
SS151 Electrical Safety helmets attached with Electronic induction Tester Nos 6
SS152 Rechargeble 5W LED hand Torch Nos 2
Station yard lighting (outdoor): Supply of LED Streetlight luminaire with pressure die cast aluminium housing body for optimal thermal dissipation. Lamp compartment comprising of anti glare clear diffuser with Injection moulded polycarbonate material, delivering superior light output Rated life Burning Hrs 50000 hr @ Lumen Maintenance of 70%, maximum light intensity should be between 60 degrees to 70 degrees. CCT > 5500K, IP66 optical and electrical compartment & impact resistance of complete luminaire > IK08. Power Factor >0.9 with mains, Surge Protection- Min 5KV along with Over voltage/ Overload, short circuit/ miss-wiring protection. Compatible for pole mounting with outer dia of 40mm to 50mm. Universal Voltage driver to operate wide voltage range from 100V to 270V 50/60Hz application. Compliance to IS 10322/IEC 60598, LM 79 & LM80 Adherence with RoHS. UL approved MCPCB. Top access street light with single screw to ensure ease of maintenance at the sight site location with minimized minimal tools. LED Light fixture with ........W System Power consumption. LED Efficiency>1301m/w, nominal CRI >75. Luminaire manufacturer should have in-house facility accredited by NABL/CPRI & any Government certified agency & Design & Development facility certified by ISO 9001:2008. Housing with supplier word mark /name shall be Engraved / Embossing on the die cast housing/ Body part. Warranty of 2 Years against any manufacturing defect working under standard electrical conditions as mentioned above should be given by LED manufacturer & Cree/Nichia/ Lumileds/Osram make LED Source.
SS153 Supplying and Fixing of 40mm Dia Class A GI Pipe Bracket upto 2Mtrs Long Bent at suitable angle and fixing to this Bracket Street Light Fitting of all capacities to GI or CI or Rail or RCC Pole / Wall using suitable Clamps, Bolts, Nuts and Wiring using suitable capacity Wires. Mtrs 45
SS154 Supplying & fixing miniature circuit breakers on existing MCB distribution boards using necessary fixing materials and 'C' Type curve, indicator ON/OFF, energy cross-3 with Short circuit breaking capacity of 10K and complete wiring as required confirming to IEC 60898.(6-32 A SP) Nos 15
SS155 supplying and fixing of LED street lights 100 watts over existing Pole/Wall Ceiling including Clamps, Bolts, Nuts and Wiring using suitable capacity Wires. Nos 15
NOTE: 1. Any clarifications / hard copy of drawings can be obtained from the office of General Manager, Projects, CESC, Corporate Office, Mysore
2. Spacers shall be provided wherever necessary and no extra charges is payable on account of the same by CESC.
3. Supply of equipment/materials shall include loading and unloading.
4. The prices for all the materials shall be quoted in the Item wise finanacial bid.
5. Released materials shall be transported to the nearest Store of CESC without any additional cost as per the directions of the Engineer in charge of the work.
6. The bidder shall quote same rates for common materials in all the price sheets.
7. The Bidder shall clearly indicate whether the materials/equipments of subject work are “Own manufactured” or “Bought out item”.
8. Copper Flat and GI Flat required for Power Transformers shall be supplied alongwith the Transformers and no extra cost is payable on this account.
9. The Bidder shall take necessary action to ensure that all the materials supplied for subject project shall be properly housed to ensure satisfactory commissioning.
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 3A(ii) - Cable Supply portion
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
Sl. no Material Unit Qty 'Own maufactured'/ 'Bought out'
CS1 CABLE SUPPLY PORTION-Work Indent-485: Check surveying using bidders equipment KM 25
CS2 33KV, 3 core, 240 Sq.mm XLPE Power UG Insulated Aluminium cable Kms 25.00
CS3 Heat Shrinkable Straight throught jointing Kits with Aluminium lugs and ferruals for 33 KV 3 core, 240 Sqmm XLPE UG Cable No's 110
CS4 Heat Shrinkable outdoor type Cable termination Kit suitable for 33 KV, 3 core, 240 Sqmm XLPE UG Cable Per kit 10
CS5 Ring Main units 33 KV, 25 KA, 630 A, with two limbs for incoming and outgoing portuons sets 4
CS6 CI grounding pipe B class 42mm dia , 2.5 mtrs long , 3.2mm thick with bolts nuts GI strips and washers complete with a minimum weight of GI pipe 7.3 kgs set 4
CS7 caution boards / Danger Board set 4
CS8 Foundation for the above RM unuits LS sets 4
CS9 Fencing to the RM units to prevent access to others with a gate LS RMTR 56
CS10 Cable Covering Tiles 250x125x40 mm for 12.5 KMs Nos 52000
CS11 Sand 0. 2 X 0.4 X 12500 meters Cmt 1000
CS12 RCC Hume Pipe Halfcut NP2 class 2000 mm Long, 300mm Dia including collars from talabetta to top of hills Rmt 12500
CS13 1:4:8 Concrete on this halfcut hume pipe Rmt 12500
CS14 RCC Hume Pipe, NP2 class 2000 mm Long, 150mm Dia including collars from Cowdally to talabetta Mtrs 250
CS15 GI Pipe, 150 mm Dia for drain crossing, cable raising etc., from cowdally to talabetta Mtrs 200
CS16 Route and Joint indicating stonesfromCowdally to Talabetta Nos 100
CS17 Cable trench excavation 12.0Kms X 1.0 meters X 0.5 meters in all kinds of soil CMT 6000
CS18 Laying of cable in trench Km 25
CS19 Refilling and consolidation up to talabetta Cmt 6500
CS20 Covering the cable with tiles Km 12.5
CS21 Spreading Sand and forming with Sand round the cable Cmt 1000
CS22 Laying of RCC Hume pipes Mtrs 250
CS23 Laying of GI Pipe Mtrs 200
CS24 Laying of Route and Joint indicating stones Nos 100
CS25 Add rates for re in statements of roads & road cutting, restoration of Road,(Actual rate may apply as per previlling rates prescribed by local bodies for actual billing) Road cutting at 25 places L/S
(Revised on 03-09-2025 after Mysore visit)
Add 12% Area Weightage
NOTE: 1. Any clarifications / hard copy of drawings can be obtained from the office of General Manager, Projects, CESC, Corporate Office, Mysore.
2. Spacers shall be provided wherever necessary and no extra charges is payable on account of the same by CESC.
3. Supply of equipment/materials shall include loading and unloading.
4. The prices for all the materials shall be quoted in the Item wise finanacial bid.
5. Released materials shall be transported to the nearest Store of CESC without any additional cost as per the directions of the Engineer in charge of the work.
6. The bidder shall quote same rates for common materials in all the price sheets.
7. The Bidder shall clearly indicate whether the materials/equipments of subject work are “Own manufactured” or “Bought out item”.
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 4(i) Break up for STATION MANDATORY SPARES SUPPLY
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
Sl. no Material Unit Qty 'Own maufactured'/ 'Bought out'
SM1 STATION MANDATORY SPARES SUPPLY PORTION-Work Indent-485: For GIS Common Spares, Maintenance and Testing Tools: SF6 gas-10% of total gas requirement subject to min. of 30Kgs. LS 1
SM2 CIRCUIT BREAKERS:- GIS SF6 CIRCUIT BREAKER: 36kV, 1200A Circuit Breaker interrupting chamber complete with all necessary apparatus. no. 1
SM3 Rubber gaskets, 'O' rings and seals set 1
SM4 Trip coils with resistor. no. 3
SM5 Closing coils with resistor no. 3
SM6 Relays, Power contactors, push buttons, timers & MCB etc. set 1
SM7 Closing assembly/ valve no. 1
SM8 Trip assembly/ valve no. 1
SM9 Pressure switches set 1
SM10 Auxiliary switch assembly no. 1
SM11 Operation Counter no. 1
SM12 Rupture disc/diaphragm no. 1
SM13 Windoscope / Observing window no. 1
SM14 b) 36 kV, 1200A Circuit Breaker operating mechanism, complete with all necessary connecting apparatus. no. 1
SM15 All types of coupling for SF6 gas(1 no. each type) set 1
SM16 ISOLATORS & E/SWITCH GIS 33 kV, 800A disconnecting & maintenance earthing Switch internal parts, complete with all necessary gaskets, mounting hardware, etc. set 1
SM17 Operating mechanism of 33 kV, 800A Disconnecting Switch, complete with all necessary connecting apparatus. set 1
SM18 33 kV, single phase high speed fault making Earthing switch, Internal parts complete with all necessary gaskets mounting hardware etc. set 1
SM19 Operating mechanism of 33 kV, 800A high speed fault making Earthing switch, complete with all necessary gaskets connecting apparatus. set 1
SM20 Limit switch & Aux. switches set 1
SM21 CURRENT TRANSFORMER - GIS: 36 kV Complete CT (1 no. of each rating) set 1
SM22 VOLTAGE TRANSFORMER - GIS: Single phase VT complete with all gaskets and mounting hardware. (36 kV) (1 no. of each rating) set 1
SM23 SURGE ARRESTOR - GIS: Complete L.A. including with Surge counter & accessories (i) 30 kV (1 no. of each rating) set 1
SM24 MANDATORY SPARES FOR POWER TRANSFORMER Oil collecting bottle no. 3
SM25 Terminal connector clamps: a) Suitable for 33 kV class bushing to suit Coyote ACSR no. 3
SM26 b) Suitable for 11kV class bushing to suit Coyote ACSR no. 3
SM27 Testing and Maintenance for GIS: Portable SF6 gas leak Detector no. 1
Name of the Company
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE - 3b(i) - Station Erection (including Testing & Commissioning) portion
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. :
The General Manager, Projects, # 29, Vijayanagara 2nd Stage, Hinkal, Mysore - 570017.
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
Sl. no Material Unit Qty
SE1 STATION ERECTION (including Testing & commissioning) PORTION-Work Indent-485: Erection of Transformers: Moving the Transformer on to the plinth Tot wt: 13 MT/Tr (ie.14MT*2 no. Transformer*45Mts=1260) Per MT/ Mtr 1260
SE2 Assembly of Transformer parts like bushings, radiators, filling oil into Tr. etc., (for the total wt. of the Tr.) Tot wt:14MT/Tr =14x2=28 MT 28
SE3 Filling oil to the power Tr., Conservator and radiator (for maintenance purpose only) For 5 MVA(1200×2=2400) Litre 2400
SE4 Filtration of oil using filter set of the contractor, to bring the insulation value to I.E. Specifications(1200×2=2400) Litre 2400
SE5 Wiring of Transformer marshalling box, bucholtz relay, fixing Thermometer, OLTC upto control panel and assisting in testing and commissioning by RT/MT/Firm Engineers for 5MVA. LS 2
SE6 Fabrication of Transformer railing and embedding in Transformer plinth. LS 2
SE7 Wiring: Identification of wires, Ferruling crimping and termination of wires. Wiring of Protective Devices, Cooling fans, Oil flow Pumps, OLTC, RTCC Set 2
SE8 Testing: 1. Ratio Test 2. SC test 3. Excitation test 4. Magnetic Balance test 5. Vector group test. 6. induced high voltage test. 7. OLTC operation. 8. Protective devices operation checks. 9. stability checks:- for differential and REFR protection Each 2
SE9 Erection of Distribution Transformer: 63 KVA,11/443v 3 Phase 50 Cycles DT 5 Star Rated with Oil Aluminium Winding (CDS 25). Set 1
SE10 Erection of 33kV GIS Transformer Module Set 2
SE11 Erection of 33kV GIS Line Module Set 1
Testing and commissioning
SE12 Testing & Commissioning of 33kV GIS Transformer Module Set 2
SE13 Testing & Commissioning of 33kV GIS Line Module Set 1
11kV Switchgear (MCVCB) Incomer Panel + Feeder Panel + Capacitor Bank.
SE14 Erection, alignment and fixing to the foundation, indoor/outdoor 11kV switchgear Panel/unit including movement from the point of unloading to the point of erection for 11kV Indoor/out door switchgear Per Panel 10
SE15 Wiring & assisting in testing & Commissioning for 11kV Indoor/out door switchgear Per Panel 10
SE16 Testing & Commissioning: Wiring: Identification of wires, Ferruling Crimping & Termination of wires for annunciation, etc., Testing of Relays, CTs, PTs, & Breaker for operation For single 11kV panel indoor/outdoor type /Kiosk No. 10
Erection of 11kV CTs:
SE17 Erection of CTs Wiring including movement from the point of unloading to the point erection. Set/(3Nos) 10
SE18 Wiring: Inspection of Wiring, Ferruling, Crimping of Lugs, Connections up to Marshalling Box & Control Panel. Set/(3Nos) 10
SE19 Testing & Commissioning of CTs: Insulation, Polarity, Ratio, Excitation. Set/(3Nos) 10
Erection of NCTs:
SE20 Erection of NCTs with ground including movement from the point of unloading to the point of erection. Set 2
SE21 Testing & Commissioning of NCT Set 2
Erection of 11kV PTs:
SE22 Erection of PTs Wiring including movement from the point of unloading to the point erection. (3 Nos 33kV PT (1 Set) & 11kV, 3Ph PT (2Nos) Set (3Nos) 2
SE23 Wiring: Inspection of Wiring, Ferruling, Crimping of Lugs, Connections up to Marshalling Box & Control Panel. Set (3Nos) 2
SE24 Testing & Commissioning of PTs: Insulation, Polarity, Ratio, Excitation. Set 2
Stringing of ACSR Conductors:
SE25 Lynx Conductor. Kms 0.50
SE26 Coyote Conductor. Kms 0.75
Erection of Poles
SE27 9 Mtr. Long 145 Kg RCC pole Nos 22
SE28 9 Mtr. Long 150Kg RCC Square pole Nos 12
SE29 8 Mtr. Long 115 KG W.L. RCC Poles for yard lighting Nos 12
Digging / Base Concreting 9Mtr RCC Pole
SE30 Digging of Pit 1.8Mtr Depth for erection of 9Mtr RCC Poles. (Ordinary Soil). Each 22
SE31 Base concreting with CC 1:4:8. (500x650x150mm) Each 22
SE32 Pole Concreting with CC 1:2:4 (650x500x1700mm) Each 22
SE33 Coping of Poles. (150mm all alround the pole for an height of 300mm) (400x400x300mm) Each 22
Digging / Base Concreting 9Mtr RCC Square Pole
SE34 Digging of Pit 1.8Mtr Depth for erection of 9Mtr RCC Square Poles. (Ordinary Soil). Each 12
SE35 Base concreting with CC 1:4:8. (650x650x150mm) Each 12
SE36 Pole Concreting with CC 1:2:4 (650x650x1700mm) Each 12
SE37 Coping of Poles. (150mm all alround the pole for an height of 300mm) (400x400x300mm) Each 12
Digging / Base Concreting 8Mtr RCC Pole
SE38 Digging of Pit 1.6Mtr Depth for erection of 8Mtr RCC Poles. (Ordinary Soil). Each 12
SE39 Base concreting with CC 1:4:8. (500x650x150mm) Each 12
SE40 Pole Concreting with CC 1:2:4 (400x400x1500mm) Each 12
SE41 Coping of Poles. (150mm all alround the pole for an height of 300mm) (400x400x300mm) Each 12
Erection of Isolators (33kV 800A):
SE42 Assembly, Errection alignment and wiring including movement from the point of unloading to the point of erection. (Upright). Set 2
Fixing of GOS 11 KV
SE43 Single break 400A with roaster switch GOS set 6
SE44 400A, 11KV Double Break GOS set 11
SE45 200A, 11KV Single Break GOS. set 1
SE46 H-Frame Set for 11kV GOS, GI Set 7
Erection of Lightning Arrestors.
SE47 Erection of Lightning arrestors and wiring including movement from the point of unloading to the point of erection for 30kV Polymeric. Nos 6
SE48 Erection of Lightning arrestors and wiring including movement from the point of unloading to the point of erection for 10kV Polymeric. Nos 18
SE49 Erection of Battery Set (Plante/Grid Plate Type) 110V, 200AH. Set 1
Battery Charger
SE50 Erection of Battery Charger and wiring for 110 Volts Set 1
SE51 Testing & Commissioning of 110V DC: (1 set for 33kV Stations) Wiring: Identification, Ferruling, Crimping & connecting i) AC Supply cable upto 2 sources ii) Load cables, connection at charger end upto 10 load points. Testing: i) AC supply Voltage Phase Sequence. ii) Testing of Output DC Voltages in Boost/Float/Trickle/Variations as per the order/requirement. iii) Testing for Ripple Factor. Commissioning: i) Fixing of Boost Voltage level ii) Fixing of Float Voltage level iii) Fixing of Trickle Volage level iv) Testing of alarm, indication and load ckts, Auto/Manual change overs etc. v) Full load test in Boost & Trickle modes. Set 1
Capacitor Bank with Reactors:
SE52 Testing & Commissioning set 2
SE53 Test & Commissioning: i) C& R Panels Wiring & Testing: Wiring:Identification, Ferruling, Crimping, termination of wires in C&R panels. Testing: Testing for insulation level, Testing of relays, control operations for closing tripping etc., interlocks Alarm, Annunciation and Indication Checks. Each 5
HG Fuse Unit, 11kV with Solid Core Insulators set 1
Mounting Structures: Equipments made out of fabricated galvanised angle iron, SM Rails for transformer plinth, cable mounting structures made out of channels and angles including Bolts & Nuts, tubular pipes, as per approved drawing.
SE54 For 33KV Isolators - 0.242 MT. (i.e. Rs.5723/MT) Set 2
SE55 For 33KV Lightning Arrestors - 0.07 MT Set 2
SE56 For 11KV NCT - 0.142 MT Set 2
SE57 For High P.I. Support with horizontal structure for fixing 3 nos. of 33KV Pin Insulator (Bolted type foundation) - 0.22 MT Set 12
11KV ODS: Beams out of channels 100x50mm with arrangements for stringing power conductor alongwith cleats, Bolts & Nuts painted with two coats of metal primer and aluminium paint, etc. complete
SE58 1B1 - 7.45 mtrs long wt 0.068 MT (channels 100x50mm) Nos 24
SE59 1B2 - 4.0 mtrs long wt 0.034 MT (channels 100x50mm) Nos 24
SE60 Angles 65x65x6 mm with clamps, Bolts, painted with two coats of metal primer and aluminium paint, etc. complete for 2.50 mtrs long for fixing 11KV GOS handle support. (0.010MT) Nos 18
SE61 Angles 65x65x6 mm with clamps, Bolts, painted with two coats of metal primer and aluminium paint, etc. complete for 5.0 mtrs long for Auxiliary Transformer side belts. (0.020MT) Nos 2
BUSBAR Formation:
SE62 Main Bus and Cross Bus for 11kV with fixing of insulator spacers, levelling of string conductors to the required height above the equipment, including providing jumps to interconnect different segments of the main bus for Main Bus/Cross Bus as above using Single Lynx/Coyote Conductor. Per Bay 10
Erection of Grounding equipments
SE63 CI Pipes of 100 mm ID 13mm thickness, 2.75 Mtrs with 2 part clamp out of GI Flat 50x6mm contineously welded alround the pipe using cast iron welding electrodes as per drawing including the cost of excavation. Salt, Charcoal (as per approved R&D KPTCL drawing) Nos 50
Erection of Hardware Materials
SE64 Double Pole TC Set for 63kVA Star Rated Transformer- GI (Including Erection of Poles 9Mtr RCC 145Kg WL)-GI. set 1
SE65 LT Wiring (For Aux Transformer) Complete set 1
SE66 Indoor 415V with 100 A, MCCBs, Voltmeter, etc. Nos 1
SE67 Outdoor with fuse cutouts, etc., as per specifications. Nos 1
SE68 Indoor / Outdoor type each with necessary MCB for incoming and switch arrangements. Nos 2
33 KV EHV cable and accessories (Market Rate/SR)
SE69 33 KV 3 core 400 Sqmm XLPE Aluminium U.G.Cable Mts 150
SE70 HS type, indoor type termination kit suitable for 33 KV 3 core 400 sqmm XLPE U.G.Cable Kit 3
SE71 HS type, outdoor type termination kiit suitable for 33 KV 3 core 400 sqmm XLPE U.G.Cable Kit 3
SE72 Power Cable LT (Armoured) with glands/lugs/ferrules:
SE73 1.1kV PVC insulated 95 Sq.mm Aluminium Cable, 4 core Mtrs 150
SE74 1.1kV, 4 core 6Sq.mm Alluminium cable. Mtrs 200
Laying of Control Cable with Accessories: (With glands/lugs/ferruels)
SE75 4 Core 6 Sq.mm Mtrs 800
SE76 2 Core 6 Sq.mm Mtrs 200
SE77 19 Core 2.5 Sq.mm Mtrs 1000
SE78 4 Core 2.5 Sq.mm Mtrs 600
SE79 2 Core 2.5 Sq.mm Mtrs 1200
SE80 2 Core 10Sq.mm Mtrs 75
Supplying heavy gauge PVC conduit pipe confirming to IS 2509 with suitable size bends, junction boxes, adhesive paste etc , and fixing using inverted wood plugs in case of RCC ceiling and RCC wall/ stone structure or rawl plugs in case of brick walls and cement plastering the damaged portion using heavy gauge saddles at an interval of 700mm using NF screws.
SE81 19/20 mm dia 2 mm thick Mtrs 75
SE82 25 mm dia 2 mm thick Mtrs 200
SE83 32 mm dia 2.5 mm thick Mtrs 200
SE84 40 mm dia 2.5 mm thick Mtrs 50
Fixing of Name Boards:
SE85 Number plates Nos 10
SE86 Danger Boards Nos 11
SE87 Phase Plates for each Phase. Nos 9
SE88 Name plates for equipment/Earth pit Nos 43
SE89 Name plate for feeders and capacitor bank Nos 10
Earth mat formation:
SE90 Supplying and laying of 50x6mm MS flat, welding applying ACB paint to welded portion and covering with sodium bentonite clay, should be provided as per the drawing standard specifications and consolidated. Rmtr 1250
SE91 Grounding of equipments with 50x6mm GI flat, and connecting equipment to the earthmat/ground pit. Each point of earhing with all formation of works like bending ,twisting, drilling of holes and connecting by welding ( inclusive of all T&P and consumables) to the earthmat/ground pit point of connection. Rmtr 2200
SE92 Fixing of Cast Iron pipes electrode of 100mm internal dia,13mm thick 2.75m long. Nos 30
SE93 Supplying & providing 450mm dia 450 mm height 1.5" to 2" thick hume pipe collar (non-pressure type) for earth pits including all lead and lifts etc., Nos 30
SE94 Providing 25mmdia M.S.rod 1.05 Mtr long earthmat spikes including hating, bending top 50 mm over lap flattening and making spike edge at one end driving into the earth below the ground level and welding the rod with ground mat flat. Nos 20
SE95 Sodium Bentonite Clay. Kgs 3000
1. Any clarifications / hard copy of drawings can be obtained from the office of the General Manager, Projects, CESC, Corporate Office, Mysore
2. Released materials shall be transported to the nearest Store of CESC without any additional cost as per the directions of the Engineer in charge of the work.
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 3B(ii) - Cable Erection portion
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. :
The General Manager, Projects, Corporate Office, CESC, Mysore - 570017.
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
Sl. no Material Unit Qty 'Own maufactured'/ 'Bought out'
CS1 CABLE SUPPLY PORTION-Work Indent-485: Check surveying using bidders equipment KM 25.000
CS2 33KV, 3 core, 240 Sq.mm XLPE Power UG Insulated Aluminium cable Kms 25
CS3 Heat Shrinkable Straight throught jointing Kits with Aluminium lugs and ferruals for 33 KV 3 core, 240 Sqmm XLPE UG Cable No's 110
CS4 Heat Shrinkable outdoor type Cable termination Kit suitable for 33 KV, 3 core, 240 Sqmm XLPE UG Cable Per kit 10
CS5 Ring Main units 33 KV, 25 KA, 630 A, with two limbs for incoming and outgoing portuons sets 4
CS6 CI grounding pipe B class 42mm dia , 2.5 mtrs long , 3.2mm thick with bolts nuts GI strips and washers complete with a minimum weight of GI pipe 7.3 kgs set 4.000
CS7 caution boards / Danger Board set 4.000
CS8 Foundation for the above RM unuits LS sets 4
CS9 Fencing to the RM units to prevent access to others with a gate LS RMTR 56
CS10 Cable Covering Tiles 250x125x40 mm for 12.5 KMs Nos 52000
CS11 Sand 0. 2 X 0.4 X 12500 meters Cmt 1000
CS12 RCC Hume Pipe Halfcut NP2 class 2000 mm Long, 300mm Dia including collars from talabetta to top of hills Rmt 12500
CS13 1:4:8 Concrete on this halfcut hume pipe Rmt 12500
CS14 RCC Hume Pipe, NP2 class 2000 mm Long, 150mm Dia including collars from Cowdally to talabetta Mtrs 250
CS15 GI Pipe, 150 mm Dia for drain crossing, cable raising etc., from cowdally to talabetta Mtrs 200
CS16 Route and Joint indicating stonesfromCowdally to Talabetta Nos 100
CS17 Cable trench excavation 12.0Kms X 1.0 meters X 0.5 meters in all kinds of soil CMT 6000
CS18 Laying of cable in trench Km 25
CS19 Refilling and consolidation up to talabetta Cmt 6500
CS20 Covering the cable with tiles Km 12.5
CS21 Spreading Sand and forming with Sand round the cable Cmt 1000
CS22 Laying of RCC Hume pipes Mtrs 250
CS23 Laying of GI Pipe Mtrs 200
CS24 Laying of Route and Joint indicating stones Nos 100
CS25 Add rates for re in statements of roads & road cutting, restoration of Road,(Actual rate may apply as per previlling rates prescribed by local bodies for actual billing) Road cutting at 25 places L/S
(Revised on 03-09-2025 after Mysore visit)
Add 12% Area Weightage
NOTE: 1. Any clarifications / hard copy of drawings can be obtained from the office of General Manager, Projects, CESC, Corporate Office, Mysore.
2. Spacers shall be provided wherever necessary and no extra charges is payable on account of the same by CESC.
3. Supply of equipment/materials shall include loading and unloading.
4. The prices for all the materials shall be quoted in the Item wise finanacial bid.
5. Released materials shall be transported to the nearest Store of CESC without any additional cost as per the directions of the Engineer in charge of the work.
6. The bidder shall quote same rates for common materials in all the price sheets.
Name of the Company
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE 3C(i) STATION CIVIL WORKS PORTION
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
BIDDERS SHALL NOTE: FILL ONLY IN LIGHT BLUE COLOURED CELLS
Bidders Name and Address along with GSTIN No.: To
The General Manager, Projects, Corporate Office, CESC, Mysore - 570017
Sl. No. Item Description Unit Quantity
Establishing 2x5 MVA, 33/11 KV GIS Sub Sutation at Malai Mahadeshwara Hills, Hanur Taluk, Chamarajanagara District
B1 STATION CIVIL PORTION-WORK INDENT-485: Levelling the yard to required R.L by filling with approved Gravel/Murrum with all lifts and leads, transporting to site, spreading grading to required slope and compacting to meet requirement complete as per specification including cost of gravel/murrum, watering charges & compaction by vibratory roller to 95% of proctors density. Cmt 3,200
B2 Construction of size stone masonry retaining wall in cement mortar (1:6) including cost of excavation and providing bed concrete (1:2:4) and plastring to the exposed faces with cement mortar (1:3) and providing weep holes with PVC pipes as per enclosed typical drawing and technical specification including cost of all material and labour etc., complete. Cmt 220
B3 RCC Cable duct: Cable Trenches including: Engineering and Construction of RCC (grade M-20),type cable trenches, pipe trenches of required depths including cost of excavation, back filling and disposal of surplus earth/rock to the places directed by HESCOM Engineer incharge, precast RCC covers, water stops, brickworks, inspection chamber, RCC Hume pipe, wherever required including the supply of labour material, cement reinforcement steel, steel angles, flats and providing PCC (1:4:8) below cable trenches as per annexed drawing and specification. SSY TYPE-2 - 750x 1160 R.mtr 100
B4 Providing and Laying RCC Hume pipe sub ducts using NP 2 class 150 mm dia Hume pipe including cost of excavation, laying charges and back filling wherever required as per technical specification and enclosed drawings including cost of all materials, labour, etc., complete. R.mtr 50
B5 Providing and Laying RCC Hume pipe sub ducts using NP 2 class 300 mm dia Hume pipe including cost of excavation, laying charges and back filling wherever required as per technical specification and enclosed drawings including cost of all materials, labour, etc., complete. R.mtr 50
B6 INSPECTION CHAMBERS: Constructing brick masonry inspection chamber 600x850mm, and 450mm depth. (clear inside dimension for single pipe line, using table molded bricks of class designation 50 in cement mortar 1:5, C.I cover with frame (light duty) 455x610mm internal dimension, total weight of cover with frame to be not less then 38Kg (weight of cover 23kg, weight off the frame 15 kg) R.C.C top slabs with cement concrete 1:2:4 mix 20mm and down size granite metal inside pestering 12mm thick with cement mortar 1:3 finish smooth with a floating coat of cement on walls and bed concrete complete as per standard design including cost of materials, labour, curing complete as per specification (KPWDSR I.No: 11.54 Pg NO:76). Nos 12
B7 Cable duct road Crossing: Providing and constructing RCC cable ducts road crossing using cement concrete M-25 grade concrete and Fe 550D steel reinforcement including cost of excavation cable tray supports and cable trays etc., complete as per technical specification enclosed drawing etc., including cost of all materials, labour,etc., complete. Nos 2
B8 Site surfacing (Jelly spreding) : Jelly Spreading (20-25 mm) : Supplying and providing jelly in the station yard of uniform thickness of 100 mm including the cost of materials, labour charges, required tools and plants etc., complete. Work shall be carried out as per the instructions of Engineer in-charge of works as per the standard procedure. Sqm 650
Security fencing with entrance gate:
B9 Providing and constrution security fencing for the switch yard using RCC fencing poles and chain link mesh as per enclosed drawing and techincal specification including cost of Labour charge complete. R.mtr 240
B10 Providing and fixing MS gate for the switch yard with a 1.25x2.40m wicket gate and a 5.00m x 2.40m main gate fitted to RCC column structure as per enclosed drawing and techincal specification including cost of Labour & materials etc complete. Nos 1
Control Room Building :
B11 Construction of Control Room building of size 17.25m x 7.50m with column structure including necessary treatement to sub soil if necessary depending upon the soil condition including providing internal water supply arrangements, electrification to the control room building providing sanitary arrangements and internal cable ducts with cost of all materials, labour, etc., complete. Unit 1
B12 Providing and forming 5 mtr wide RCC Road including providing walk ways, fixing RCC kerb stones within sub-station as per technical specification, layout and sectional detailed drawing etc., complete in all respect. R.mtr 125
Storm Drainage System :
B13 Storm water drainage system: Construcution of storm water drains using SSM in cement mortar 1:6 including earth work excavation, bed concrete (1:2:4) with plastring to the exposed faces as per the technical specification and enclosed drawings including cost of all materials, labour etc., complete. R.mtr 240
B14 Culverts across approach Road: Providing and constructing RCC hume pipe culvert using 750mm dia NP- 3 class pipe, (two rows) with RCC wing walls of M-25 grade concrete and Fe550D steel raincorcement including earth work excavation, bed concrete (1:2:4) plastering to exposed faces with cement mortar (1:4) 12 mm thick as per technical specification and enclosed drawing. No 1
B15 Providing water supply for the substation including drinking water and water for fire fighting system and earthing pits with sinking of borewell and erection of submersible pump set and drawing pipe line from bore well to over head Synthetic tank of 1000ltrs capacity including providing of RCC pedestral and distribution system inside the station yard servicing the pump set etc., complete. L/S 1
B16 Construction of baffle wall with RCC columns M-25 and Fe550D steel reinforcement and brick masonry in cm 1:6 including plastering and painting as per the technical specification and enclosed drawings including cost of all materials, labour etc., complete. No 1
Mounting structures / Station towers foundations: Construction of RCC Footings/pedestals using M-25 grade concrete and Fe550D steel reinforcement including the cost of excavation, providing bed concrete (1:2:4) and back filling with suitable earth for all the works as per technical specifications, enclosed drawings including cost of all materials, labour etc., complete for the following station towers and mounting structures.
B17 11 KV NCT support structure Nos 2
B18 11KV High PI for Road Crossing Nos 6
Antiweed Treatment :
B19 Providing and supplying all labour material equipments etc. required for soil sterilization, antiweed treatment including excavation, mixing / injecting chemicals to achieve the guaranteed effectiveness of treatment at least up to three years, rolling, dressing, compacting the excavated earth within substation areas as per technical specification. Smt 2,500
B20 Transformer foundation and associated rail track: Design, Engineering,supply of material / equuipment, labour and construction of Tr. Foundation by providing all associated works, rail tracks jacking pads, anchor block RCC, PCC misscellanellaneous structural steel including MS, grouting gravel filling pylon support system and other items not mentioned herein, but required for the completion of the work as per the technical spcfication and drawings Nos 2
B21 63KVA, 11KV/433 VLT Distribution Transformer: Construction of tranformer plat form of size 1.50mx1.50mx1.20m above FGL and 1.50mx1.50mx1.0m below FGL in size stone masonry (1:6) including excavation, laying coping concrete 1:2:4, plastaring exposed faces in CM 1:3 and painting with waterproof cement paint etc, complete. Nos 1
B22 Foundation for porcilain clad 11KV VCB switch gear outdoor type: Construction of foundation for 350MVA each with 1IC+3F+1CB+1AP3 PCVCB using M25 grade concrete, FE550D steel reinforcement and bed concrete 1:2:4 as per approved drawing including MS grouting, gravel filling and other items not mentioned here, but required for the completion of the work. Set 2
B23 Retaining wall of 3 mtr height 0.45 mtr thick using size stone masonry Rmt 50
Earth mat formation: Excavation formation,(eartmat design area 30m x 50m is considered with 2m spacing between the adjacent earth flats approximately as per MS flat annexure) The execution actual earthmat design has to be obtained from SEE R&D KPTCL
B24 a) Exacavation of 0.5 mtr width and 0.9 mtr depth length of 1600 mtr Cmt 720
B25 b) Supplying and laying of MS Flat 50x6 mm size including welding and applying ACB paint to welded portion and covering with sodium bentonite clay as per specification for forming earthmat Rmt 1,600
B26 c) Supplying and providing 25mm dia MS Rod 1.05 mtr long earthmat spikes no's 80
B27 d) Supplying and fixing of CI Pipes of 100 mm ID 13mm thickness, 2.75 Mtrs with 2 part clamp out of GI Flat 50x6mm contineously welded alround the pipe using cast iron welding electrodes (as per approved R&D KPTCL drawing) for providing CI pipe earthing no's 8
B28 e) Grounding of equipment with GI Flat 50x6 mm and connecting equipments / CI / GI earthing to the earthmat / groun pit. Each point of earthing with all formation works like bending, twisting. Rmt 100
B29 BACK FILLING: Refilling available excavated earth around pipe lines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ramming after watering with lead upto 1.5 m including cost of all labour complete as per specifications. (KPWDSR I. No:2.11) Cmt 700
1) The uploaded drawings are indicative and are to be referred for guidance purpose only. However all foundations shall be designed to suit the site soil condition and as per the approved layout.
2) The land will be handed over " As is where is condition".
Name of the company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE-5 COMMERCIAL DEVIATION
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Please fill Only in the Light Blue Couloured Cells.
Please key in the SlNo., Section , Clause , Description as given in bid sheets and finally your Statement of Deviation/Variations.
This Sheet would be opened at the Techno-Commercial Opening. Please refer Vendor Manual attached for further details.
For any further assistance for submitting your bids please call up CESC Office.
We agree to provide all original Documents in support of the information provided for verification upon request. (Key in as YES in the space provided)
We understand that the electonic bid submitted by us is a valid offer in accordance with IT Act. (Key in as YES in the space provided)
We are fully aware of the electronic bid formalities and abide by the same. (Key in as YES in the space provided)
If you are not deviating from any of the clauses mentioned please key in as 'NO DEVIATION' in the space provided.
Bidder's Name & Address alongwith GSTIN no. :
TO, THE GENERAL MANAGER, PROJECTS, CORPORATE OFFICE, CESC, MYSORE - 570017.
I/we have read each of the Clauses mentioned in IFT, ITT, CC, SCC & all other Bid documents.
The following are the commercial Deviations and Variations from and exceptions to the Specifications and documents for
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
These deviations and variations are exhaustive. Except these deviations, the entire work shall be performed as per your specifications and documents.
Sl. NO. Section SECTION CLAUSE NO. DESC. AS PER SPECIFICATION STATEMENT OF DEVIATIONS/VARIATIONS
Note : Deviations specified elsewhere in the specification will not be considered.
Place Designation
Name of the company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE-6 : TECHNICAL DEVIATION
SHEET FOR TECHNO-COMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at K.Peraje Village in Madikeri Taluk, Kodagu District.and construction of 33kV D/C LILO line for a distance of about 200 Meters using Coyote conductor from existing 33kV D/C Karike- Sulya BPCL line feeding to Sulya Substation.
Please key in the SlNo., Section , Clause , Description as given in Bid sheets and finally your Statement of Deviation/Variations.
This Sheet would be opened at the Techno-Commercial Opening.
For any further assistance for submitting your bids please call up CESC office. Please fill only in the blue coloured cells.
We agree to provide all original Documents in support of the information provided for verification upon request. (Key in as YES in the space provided)
We understand that the electonic bid submitted by us is a valid offer in accordance with IT Act. (Key in as YES in the space provided)
We are fully aware of the electronic bid formalities and abide by the same. (Key in as YES in the space provided)
If you are not deviating from any of the clauses mentioned please key in as 'NO DEVIATION' in the space provided.
Bidder's Name & Address alongwith GSTIN no. : TO,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
The following are the Technical Deviations and Variations from and exceptions to the Specifications and documents for
Establishing 2x5 MVA, 33/11kV GIS sub-station at K.Peraje Village in Madikeri Taluk, Kodagu District.and construction of 33kV D/C LILO line for a distance of about 200 Meters using Coyote conductor from existing 33kV D/C Karike- Sulya BPCL line feeding to Sulya Substation.
These deviations and variations are exhaustive. Except these deiviations and variations, the entire work shall be performed as per your specification and documents.
Sl. NO. SECTION CLAUSE NO. DESC. AS PER SPECIFICATION STATEMENT OF DEVIATIONS/VARIATIONS
Note : Deviations specified elsewhere in the specification will not be considered.
Name of the company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. : TO,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
List of special tools and tackles the price of which is included in bid price.
Sl. No. For equipment Description of item Unit Quantity
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
NOTE: 1 ) SHALL BE FURNISHED WITHOUT PRICES
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017 0
We have enclosed(uploaded) with our proposal the following additional information:
Sl. No. Brief Description of information Ref. and Page No.
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 9 (1 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
BIDDER'S NAME AND ADDRESS: TO,
The General Manager, Projects, Corporate Office, CESC, Mysuru-570017
a) * We have submitted bid as individual Bidder. (Key in Individual Bidder )
1.0 GENERAL INFORMATION
Bidder for this package is requested to complete the information:
Sl. No. Particulars For individual Bidder
1 Name of the Firm
2 Address of Head Office / Registered Office GST no.
5 Name of Contact person with Designation
6 Place of Incorporation/Registration
7 Year of Incorporation/Registration
8 Constitution or legal status of Tenderer [Upload copy]
9 Place of Registration [Upload copy]
10 Principal place of business
2.0 We are furnishing the following details/documents in support of Qualifying requirement for above mentioned project
Sl.No. For individual Bidder
(a) Written power of attorney of the signatory on the bid to commit the bidder.
1 Uploaded / Not
(b) Certificate of Registration of the Company. Please mention the date of incorporation of the company
1 Uploaded / Not
(c ) Valid Super Grade Electrical Contractor’s License issued by the Government of Karnataka as on the date of techno commercial Bid opening. Please mention the date of expiry of the License certificate issued by GOK/ Undertaking to this effect
1 Uploaded / Not
(d) Self declaration regarding Litigation w.r.t CESC contracts over the last five years (refer IFT)
1 Uploaded / Not
(e) Self declaration for ‘not being disqualified regarding non-performance in any of the Government utilities in the past five years’. (refer IFT)
1 Uploaded / Not
(f) An undertaking to source the supply of equipment/ material from CESC approved vendors only as per QR for Vendor registration, available in the CESC website ie., CESC.karnataka.gov.in, Link Tender and Procurement-Application for Vendor.
1 Uploaded / Not
(g) Self declaration regarding no action against the bidder have been taken by CESC in respect of Risk & Cost clause
1 Uploaded / Not
(h) Self declaration regarding 'Eligibility clauses in respect of restrictions on procurement from a bidder of a country which shares a land border with India as per Annexure-XVI
1 Uploaded / Not
(i) Self declaration regarding RESTRICTIONS ON SOURCING OF EQUIPMENTS/MATERIALS BY THE BIDDER FROM A VENDOR OF A COUNTRY WHICH SHARES A LAND BORDER WITH INDIA as per Annexure -XVII
1 Uploaded / Not
(j) Self declaration regarding Technical Snag for EHV UG Cable
1 Uploaded / Not VOID
Section 3 : 1.3 Work performed of similar nature of Bidder (Clause No: 3.2 (b) (i) & (ii) of ITT) - In respect of Sub Station portion and Transmission Lines/Cable:
Project Name Name & Address of the Employer Description of Work Voltage class Number of Sub-Stations/Length of the Line/Cable Contract Number Value of contract Rs. Lakh Date of issue of work order Specified period of completion Actual date of commissioning Remarks explaining reasons for delay in commisioning of work
Note : 1 . The documentary proof of fulfilling the qualifying requirements shall be uploaded along with the bid. The bidder shall upload the P.O,LOI/LOA, DWA, Work done, Performance Certificates issued by the end users not below the rank of Executive/ Divisional Engineer along with the bid.
2. The qualifying experience of the Bidder who is having qualifying experience shall be furnished in the above performa and Documentary Proof in support of above shall be uploaded in the form of certificates issued by authorized officers of concerned organisations.
3. IF this sheet is insufficient for furnishing the qualifying experience of the Bidder then similar sheets shall be seperately uploaded.
4. In case of work executed under a contract that had been awarded on a joint venture, the experience of individual joint venture partner shall be considered limited to the scope of that partner under the said contract. The copy of the agreement executed with awarding agency shall be uploaded as proof of the same
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 9 (2 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
BIDDER'S NAME AND ADDRESS: TO,
The Genral Manager, Projects, Corporate Office, CESC, Mysuru-570017.
Section 3 : 1.5 Information on works for which Tenders have been submitted and works which are yet to be completed as on the date of this Tender by Tenderer.
(A) Existing commitments and on-going works:
Description of work Place & State Contract No & Date Name and Address of Employer Value of contract (Rs. Lakh) Stipulated period of cof Completion Value of works remaining to be completed ( Rs.Lakhs) (Attach Certificates from Engineers –in- Charge/CA/Cost Auditor) Anticipated date of commissioning
Ex-Works GST Total (Ex-works + GST)
(B) Works for which Tenders already submitted:
Description of work Place & State Name and Address of Employer Estimated value of works (Rs. Lakhs) Stipulated period of Completion Date when decision is expected Remarks if any
Ex-Works GST Total (Ex-works + GST)
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 9 (3 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
BIDDER'S NAME AND ADDRESS: TO,
THE GENERAL MANAGER, PROJECTS CORPORATE OFFICE, CESC, MYSORE-570017
Following is the list of major supplied substation equipments/accessories which are type tested and designed, manufactured by us in accordance with internationally recognised standards.
Sl. No. Item rating, type and Designation Qty Customer Date of Order Date of Supply Date of Commissioning Ref. of Cusomer's certificate of successful operation enclosed Ref. of layout & Customer's certificae for successful commission
Note: Documentary Proof in support of above shall be uploaded in the form of certificates issued by authorized officers of concerned organisations. .
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
SCHEDULE - 9 (4 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
BIDDER'S NAME AND ADDRESS: To
The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
Section 3 : 1.7 Reports on the financial standing of the tenderer, such as Profit and Loss Statements and Auditor’s reports in the preceeding last five years, Audited Financial statements i.e Balance sheets, P&L statements, Turnover certificates duly certified by chartered Accountant as documentary evidence shall be uploaded.
SLNo. Particulars Year Bidder
Mention Year Turnover excluding GST (in Rs.) GST Amount (in case GST is included in Turnover) (in Rs.) Total Turnover including GST (in Rs.)
Names of the constituent Firms
1 Annual turn over for the last Five financial years preceding the date of bid submission. Year(1) 2020-2021
2 Liquid Assets / Credit availability or access to evidence of assets
3 Whether Audited Balance sheets and Profit & Loss statement are enclosed for the last Five Years ? (yes/No)
4 Whether Bankers certificate enclosed for credit facilities? (Yes/No)
Place Designation
Name of the Company
Chamundeshwari Electricity Supply Corporation Limited
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
SCHEDULE - 9 (5 of 5) : QUALIFYING REQUIREMENTS
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
BIDDER'S NAME AND ADDRESS: TO,
THE GENERAL MANAGER, PROJECTS CORPORATE OFFICE, CESC, MYSORE - 570017.
The information to be filled in by the Tenderer hereunder will be used for purposes of computing Tender capacity as provided for in Clause 3 of the Instructions to Tenderers. This information will not be incorporated in the Contract.
1.1 Constitution or legal status of Tenderer [Upload copy]
Place of Registration [Upload copy]
Principal place of business
Section 3: 1.2 Total value of works executed (CESC & NON CESC works) and payments received in the last ten years by the bidder):
1.2 Total value of works executed (CESC & NON CESC works) and payments received in the last five years of the Bidder Financial Year CESC works Non CESC works
Total value of works in Rs. Lakh Total value of works in Rs. Lakh
Note: Attach relevant Certificate/s from Chartered Accountant.
Section 3: 1.9 Name, address, and telephone, telex, and fax numbers of the Tenderers' bankers who may provide references if contacted by the Employer.
Sl.No Name, address, and telephone, telex, and fax numbers of the Tenderers' bankers
1.12 Information on litigations in which the Tenderer is involved:
Other Party(ies) Employer Details of Dispute Amount involved Remarks showing Present Status
Name of the Company
Chamundeshwari Electricity Supply Corportion Limited
SCHEDULE-10 (1 of 3)
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
BIDDER'S NAME AND ADDRESS: To
The General Manager, Projects Corporate Office, CESC Mysore - 570017.
Following are the details of the Tools and Plants available with us.
Sl. No. Description Quantity Make Present Location / Project Remarks (if any)
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SCHEDULE 10-2 of 3
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
BIDDER'S NAME AND ADDRESS: To
The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
Section-3: 1.8 Qualification and experience of the key technical and management personnel in permanent employment with the tenderer and those that are proposed to be deployed on this contract, if awarded.
Sl. No. Name of the employee Designation Branch (Degree/Diploma) Year of Passing Since when employed in erection division Past Experience
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SCHEDULE 10- 3 0f 3
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
BIDDER'S NAME AND ADDRESS: To
The General Manager, Projects, Corporate Office, CESC, Mysore - 570017.
We propose the following deployment of manpower for the substation & Line package.
Sl. No. Category MONTHS AFTER PLACEMENT OF AWARD LETTER
1 Project manager
2 Sr. Project Manager
5 Skilled labour
6 No skilled labour
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SCHEDULE-11 (A) : COMPLETION SCHEDULE
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Bidders Name and Address: To,
The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
We hereby declare that following schedules shall be followed by us for the above work. The period of various activities from the date of placement of award letter shall be as follows
SL.NO Activity Period in Months for the work of Substation
Commencement Completion
1 Detailed engineering
2 Procurement of bought out items / raw materials
3 Manufacturing & Testing
5 Setting up of site office, Sheds & stores etc.
7 Concreting for
a)Structure Foundations
b)Equipment and mounting structure foundadions
c)Cable trenches
2. Installation
8 Receipt(at site) of
a)Main equipment / spares
c)Insulators & Hardwares
d)Clamps & Connectors
e)Marshalling kiosks
f)Cables & Cabling Materials
a)Main structures
b)Equipment support structures
10 Equipment Erection
12 Bus bar erection
15 Completion of testing and ready for commissioning
16 Commissioning
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SCHEDULE-11B : COMPLETION SCHEDULE
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Bidders Name and Address: To,
The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
We hereby declare that following shedules shall be followed by us for the above work. The period of various activities from the date of placement of award letter shall be as follows.
SL.NO Activity Period in months for work of 33kV UG Cable
Commencement Completion
1 Check survey, approval of Vendors/drawings, etc.
1 Submission of Drawings
2 Completion of detailed engineering
3 Commencement of Manufacturing
4 Completion of Manufacturing
5 Readiness for testing
6 Readiness for Shipment
7 Receipt at Site
8 Completion of Shipment
1 Detailed Survey
2 Setting up of site office, sheds and stores etc.
3 Exacavation for foundations.
4 Foundations and other Civil Works
5 Erection of Tower alongwith accessories
6 Stringing of conductor/ groundwire alongwith accessories
7 Testing , Commissioning and Handing over.
Place Designation
Name of the Company
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SCHEDULE - 12 (TYPE TESTS)
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
ALL THE TYPE TESTS APPLICABLE FOR EACH OF THE EQUIPMENTS SHALL BE INCLUDED.
Bidders Name and Address To,
The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
SL.No Details of Equipments Type Test Test Charges ( in Rs )
1 Power Transformers:
a) 5MVA, 33/11KV
2 Auxiliary Transformer- 63kVA, 11kV/443V
3 a. 36kV GIS modules
4 SF6 Circuit Breakers:
6 Current Transformer:
7 Voltage Transformers:
8 Capacitive Voltage Transformers:
9 Surge Arrestors
10 a) Relay & Protection Panels
b) Substation Automation
11 L.T. A.C Panel
12 Station Battery
13 Station Battery Charger
14 PLCC Battery
15 PLCC Battery Charger
16 1.1KV Copper control cables/LT Power Cable
17 33KV U.G Cable
18 PLCC equipment
19 Conductors & Earth Wire a) Drake ACSR
20 Insulators a) i) 90KN Disc Insulator
b) Solid Core Insulators
c) Silicon rubber/ Disc/ Long rod insulators
d) Post Insulators
21 Station / Mounting Structures/Lightning Mast
23 Hardware Materials
24 Aluminium pipe and Clamps
25 AC DISTRIBUTION BOX
26 DC DISTRIBUTION BOX
27 Fire Fighting Protection System
NOTE: The Type Test / Special Tests, if repeated at the insistance of owner, the applicable testing charges shall be paid by the successful Bidder upfront to the laboratory and the same shall be reimbursable by CESC as per actuals on submission of Bills along with proof of payment and on successful completion of all the Type Tests, specified and on approval of the same by the owner. In case equipment/material fails in the type tests during testing then the testing charges paid by the Bidder to the laboratory will not be reimbursed by CESC. The above Clause is applicable for all the equipments/materials, in case, the Type Test / Special Tests, are repeated at the insistance of owner(CESC).
Place Printed Name
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
BIDDERS SHALL NOTE THAT QUANTITIES INDICATED IN THE ITEM_WISE BID FINANCIAL OFFER SHALL BE INDICATED HERE ALSO.
Bidders Name and Address
To, The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
List of optional spares required to meet the specified performance for a period of three years,
Sl. No. For Equipments Details of item Unit Quantity
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY COPRORATION LIMITED
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Bidders Name and Address To,
The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
Dear Sir, i) We Declare that the ratings and performance figures of the transformer furnished by us under the Turnkey Package are Guaranteed. We further declare that in the event of any deficiencies in meeting the guarantees in repect of the characteristics mentioned below as established after conducting the factory test, you may at your discretion,reject or accept the equipment after assessing the liquidated damages as specified in relevant clause of Bid Document.
Sl No Equipment Guaranteed Losses at rated output(KW)
Max No Load loss at rated voltage and rated frequency Max Load loss at rated current and frequency and at 75 deg C at principal tap Max I2 R loss at rated current and frequency and at 75 deg C at principal tap Max Auxiliary loss at rated voltage and frequency for Power Transformer
1 5MVA, 33/11kV Power transformer
Sl.No. Equipment Total Losses in KW/Watts % Impedance
at 50% Loading at 100% Loading
1 63kVA, 11kV/443V Auxiliary Transformer
Name of the Company
Chamundeshwari Electricity Supply Corporation Limited
LIST OF VENDORS
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
BIDDERS NAME AND ADDRESS To, The General Manager, Projects Corporate Office, CESC, Mysore - 570017.
Sl. No. EQUIPMENT/ MATERIAL FULL NAME OF VENDOR & LOCATION OF FACTORY
VENDOR 1 VENDOR 2 VENDOR 3 VENDOR 4
1 Power Transformers:
2 Auxiliary Transformer- 63kVA, 11kV/443V
3 SF6 Circuit Breakers:
5 Current Transformer:
6 Voltage Transformers:
7 Capacitive Voltage Transformers:
8 Surge Arrestors
9 a) Relay & Protection Panels
b) Substation Automation
10 L.T. A.C Panel
11 Station Battery
12 Station Battery Charger
13 PLCC Battery
14 PLCC Battery Charger
15 1.1KV Copper control cables/ LT Power Cable
16 33 KV U.G Cable
17 PLCC equipment
18 Conductors & Earth Wire a) Drake ACSR
19 Insulators a) i. 90KN Disc Insulator Strings
b) Solid Core Insulators
c) Silicon rubber/ Disc/ Long rod insulators
d) Post Insulators
20 Station / Mounting Structures/Lightning Mast
22 Hardware Materials
23 Aluminium pipe and Clamps
24 AC DISTRIBUTION BOX
25 DC DISTRIBUTION BOX
26 Nitrojen Fire Fighting Protection System
27 33kV GIS equipments/materials
Place Designation
Name of the Company
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE-16 : NO DEVIATION CERTIFICATE (ANNEXURE-I)
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
NOTE: SCHEDULE DULY SIGNED BY THE AUTHORIZED PERSON SHALL BE UPLOADED
With reference to our Bid Proposal No dated
We hereby confirm that we have read the provisions of the contract, the stipulation of these clause are acceptable to us,
and we have not taken any deviation whatsoever to these clauses:
a) Terms of payment Clause No. 37 of Section-5,Conditions of Contract (CC) and Clause No.8 of Special Conditions of Contrac (SCC)
b) EMD/Bid Security Clause No. 6, Section :1, Invitation for Tenders (IFT) and Clause No. 13, Section :2, Instruction to Tenderer (ITT)
c) Contract Performance Guarantee Clause No. 29 of Section:2, Instruction to Tenderers (ITT).
d) Penalty for delay Clause No. 41 of Section-5 : Conditions of Contract (CC).
e) Price Basis/ Price adjustment Clause No. 40 of Section-5 :Conditions of Contract (CC).
f) Defects Liability Period/Guarantee Clause No. 10 of Section-5 Special Conditions of Contract (SCC)
g) Work Schedule Clause No.17 of Section:5 Conditions of Contract (CC)
h) Taxes and Duties Clause No. 11.11 of Section-2: Instruction to Tenderers (ITT).
We further confirm that any deviation to the above clauses at SI.No. (a) to (h) found anywhere in our bid proposal, implicit or explicit, shall stand unconditionally withdrawn, without any cost, implication whatsoever to KPTCL.
Place Designation
Name of the Company
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE-17a BID SECURITY/EMD (ANNEXURE-IIA) (To be stamped on Rs.300/- Non-Judicial stamp paper in accordance with KPTCL Circular No. KPTCL/GMT/CIVIL (B7)/35/2024-MANAGER ESTATE (E-106992) dated 02.03.2024)
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
NOTE: SCHEDULE DULY SIGNED BY THE AUTHORIZED PERSON SHALL BE UPLOADED AND SENT ALONG WITH ORIGINAL BANK GUARANTEE AND ORIGINAL DD (TOWARDS BID GUARANTEE ) TO GENERAL MANAGER, PROJECT, CESC, MYSORE SO AS TO REACH AFTER THE LAST SUBMISSION DATE & ON OR BEFORE THE DATE & TIME OF OPENING TECHNO COMMERCIAL BIDS.
Ref No. Bank Guarantee No.
In accordance with Invitation to Bid under your specification
No. M/s having its Registered /
Head Office at (hereinafter called the 'Bidder') wish
to participate in the said Bid or and you, as a special favour have agreed
to accept an irrevocable and unconditional bank guarantee for an amount of
valid up to on behalf of Bidder in lieu of the Bid deposit required to be made
by the Bidder as a condition predecent for participation in the said Bid,in addition to the Demand draft No.
we the Bank at having our Head office at
(local address) guarantee and undertake to pay immediately on demand by Chamundeshwari Electricity Supply Corporation Limited
the amount of (in figures and words)
without any reservation, protest, demur and recourse. Any such demand made by said `Owner' shall be conclusive and binding on us irrespective of any dispute or difference raised by the Bidder.
This Guarantee shall be irrevocable and shall remain valid up to and including
If any further extension of this guarantee is required, the same shall be extended to such required period (not exceeding one year) on receiving instructions
from M/s on whose behalf this guarantee is issued.
This Guarantee has been issued using SFMS Platform and the requisite communication in this regard has been forwarded to the Beneficiary Bank.
In witness whereof the Bank, through its authorised officer, has set its hand and stamp on this
Signature Signature
Official Addressess Designation with Bank Stamp.
Attorney as per Power of Attorney No.
Note : 1) Both the Bank Guarantee and Demand Draft shall be scanned and uploaded along with Electronic sheets. 2) This date shall be Forty Five (45) days after the last date for which the bid is valid.
Chamundeshwari Electricity Supply Corporation Limited
Form of Insurance Surety Bond towards EMD (ANNEXURE-IIB) (To be stamped on Rs.300/- Non-Judicial stamp paper in accordance with KPTCL Circular No. KPTCL/GMT/CIVIL (B7)/35/2024-MANAGER ESTATE (E-106992) dated 02.03.2024)
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Insurance Surety Bond No.
In accordance with Invitation for Bids under your Bid Document No
M/s having its Registered /
Head Office at (hereinafter called the 'Contractor') wish
to participate in the said Bid for
As an irrevocable Insurance Surety Bond against Bid Security for an amount of * valid for days from **
required to be submitted by the Contractor as a condition precedent for participation in the said bid which amount is liable to be forfeited on the happening of any contingencies as mentioned under the Bidding Documents.
we, the having our Head office at
guarantee and undertake to pay immediately on demand by Chamundeshwari Electricity Supply Corporation Limited, (hereinafter called the 'Owner') the amount of
without any reservation, protest, demand and recourse. Any such demand made by the 'Owner' shall be conclusive and binding on us irrespective
of any dispute or difference raised by the Contractor and/or any right/remedy available to the Contractor in terms thereof.
This Insurance Surety Bond shall be unconditional as well as irrevocable and shall remain valid upto
If any further extension of this Insurance Surety Bond is required, the same shall be extended to such required period (not exceeding one year) on receiving instructions from
M/s on whose behalf this Insurance Surety Bond is issued.
In witness where of the Insurer, through its authorised officer, has set its hand and stamp on this
Signature Signature
Official Addressess Designation with Insurer Stamp
Attorney as per Power of Attorney No.
NOTE: 1. (*) The amount shall be as specified in the SPC. (**) This shall be the last date of bid submission deadline. (@) This date shall be Forty Five (45) days after the last date for which the bid is valid 2. The Insurance Surety Bond shall be from an Insurer as per guidelines issued by Insurance Regulatory and Development Authority of India (IRDAI) as amended from time to time. 3. The Owner shall be the Creditor, the Contractor shall be the Principal debtor and the Insurance company/Insurer shall be the Surety in respect of the Insurance Surety Bond to be issued by the Insurer. 4. The Insurance Surety Bond should be on Non-Judicial stamp paper/e-stamp paper of appropriate value as per Stamp Act prevailing in the state(s) where the Insurance Surety Bond is submitted or is to be acted upon or the rate prevailing in State where the Insurance Surety Bond is executed, whichever is higher. The Stamp Paper/e- stamp paper shall be purchased in the name of Contractor /Insurer issuing the Insurance Surety Bond. 5. While getting the Insurance Surety Bond issued, Contractors are required to ensure compliance to the points mentioned in Form of Bank Guarantee/Insurance Surety Bond Verification Check List enclosed in this Section of Bidding Documents. Further, Contractors are required to fill up this Form and enclose the same with the Insurance Surety Bond.
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE-18 LETTER OF UNDERTAKINGS (ANNEXURE-V)
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
NOTE: SCHEDULE DULY SIGNED BY THE AUTHORIZED PERSON SHALL BE UPLOADED
(To be executed on Non-Judicial paper of RequisiteValue)
1. I*/We* have read and examined the following bid documents relating to the
(full Scope of Work)
a) Notice Inviitng Tender
b) Conditions of Contract containing section 'Invitation for Tenders’, 'Instructions to Tenderers’, ‘Conditions of Contract’ and Contract Data.
c) Special Conditions of Contract along with Annexure to
d) Drawings No.
e) Technical Specifications
2 . I / We hereby submit our Bid and undertake to keep our Bid Valid for a period of One Hundred and Eighty days (180 days) from the Last date of bid submission as notified (either original or extended). I*/We* hereby further undertake that during said period I/We shall not vary/alter or revoke my/our Bid.
This undertaking is in consideration of CESC agreeing to open my/ our Bid and consider and evaluate the same for the purpose of award of Work in terms of provisions of clause entitled "Award of Construct" 'cl.no. 26 of Section ITT and cl.no. 18 of SCC of the Bid Documents.
Should this bid be accepted, I*/We* also agree to abide by and fulfil all the terms, conditions of provision of the above mentioned bid.
Signature along with Seal of Co.
(Duly Authorised to sign the Tender on Behalf of the Contractor.)
NAME OF THE COMPANY (in Block Letters)
SIGNATURE Date and Postal Address
DATE Telegraphic Address
NAME AND ADDRESS Telephone No.
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE-18 LETTER OF UNDERTAKINGS
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Chamundeshwari Electricity Supply Corporation Limited
POWER OF ATTORNEY (ANNEXURE-XI)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
NOTE: SCHEDULE DULY SIGNED BY THE AUTHORIZED PERSON SHALL BE UPLOADED
POWER OF ATTORNEY
(To be stamped on Rs.500/- Non Judicial stamp paper in accordance with KPTCL Circular No. KPTCL/GMT/CIVIL (B7)/35/2024-MANAGER ESTATE (E-106992) dated 02.03.2024)
KNOW ALL MEN BY THESE PRESENTS that we
a Company incorporated
under the laws of
and having its Registered Office / Head Office at
"Manufacturer / Bidder" which expression shall unless repugnant to the
Context or meanig thereof, include its successors, administrators and assigns)
acting through Mr its constitute, nominate and appoint
M/s a Company incorporated under the laws of
and having its Registered / Head Office at
as its duly constituted lawful Attorney (hereinafter called "Attorney"
or "Authorized Representative") to exercise all or any of the powers for and on
behalf of the "Manufacturer / Bidder" in regard to Specification No.
the bids for which have been invited by
(Address "Owner") to undertake the following acts:
i. To submit proposal and participate in the aforesaid Bid Specification of the Owner on behalf of the "Manufacturer / Bidder".
ii. To negotiate with the "Owner" the terms and conditions including price for award of the contract pursuant to the aforesaid Bid and to sign the contract with the "Owner" for and on behalf of the Manufacturer / Bidder.
iii. To receive accept and execute the contract for and on behalf of the "Manufacturer / Bidder".
iv. To do any other act or submit any document related to the above.
It is expressly understood that the Power of Attorney shall remain valid, binding and irrecoverable till submission of the Contract performance guarantee in terms of the Contract. The "Manufacturer / Bidder" hereby agrees and undertakes to ratify and confirm all the whatsoever the said "Attorney" / "Authorised Representative" quotes in the Bid, negotiates and signs the contract with the "Owner" and / or purports to act on behalf of the "Manufacturer / Bidder" by virtue of this Power of Attorney and the same shall bind the "Manufacturer / Bidder" as if done by itself.
IN WITNESS WHEREOF THE "Manufacturer / Bidder" has executed these presents at
on this day of under
the Common Seal of the Manufacturer company / Bidder.
Specimen Signature of Attorney Holder
(Name & Designation)
For and on behalf of
Common Seal of the above Manufacturer/Bidder
Has been affixed thereto in the presence of :
Chamundeshwari Electricity Supply Corporation Limited
SCHEDULE-18 LETTER OF UNDERTAKINGS
SHEET FOR TECHNOCOMMERCIAL OPENING
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Chamundeshwari Electricity Supply Corporation Limited
SHEET FOR TECHNOCOMMERCIAL OPENING (UN - PRICED)
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidders Name and Address
To, The General Manager, Projects Corporate Office, CESC Corporate Office, Mysore - 570017.
We Declare that the ratings and performance figures of the equipment furnished by us under the Turnkey Package are Guaranteed. We further declare that in the event of any deficiencies in meeting the guarantees in repect of the characteristics as established after conducting the performance test, you may at your discretion, reject the equipment, in which case we shall replace the same with equipment as per specification and meeting the guarantee, free of charge and within a resonable time, to be mutually agreed.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORAROTION LIMITED
SCHEDULE -22 - Check List
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
BIDDERS NAME AND ADDRESS To,
The General Manager, Projects Corporate Office, CESC Corporate Office, Mysore - 570017.
CHECK LIST FOR SUBMISSION OF SCHEDULES
REFERENCE OF FORM & SCHEDULE DETAILS OF FORM & SCHEDULE WHETHER INCLUDED IN TECHNO-COMMERCIAL SHEETS (ELECTRONIC) YES/NO WHETHER INCLUDED IN Item-Wise Bid Financial Offer (ELECTRONIC) YES/NO WHETHER INCLUDED IN COMMERCIAL
PROPOSAL BID PROPOSAL
Schedule - 1 PRICE COMPONENTS
Schedule 2 (1 of 2 & 2 of 2) Summary of Price Components
Schedule 2A Schedule of Discounts
Schedule 2B Statement of Commercial Terms & Conditions
Schedule 3A, 3B & 4 Price break up for supply & erection
Schedule 3C Price break up for civil works
Schedule 4 Price break up for mandatory spares and maintenance & Testing Equipments.
Schedule 5 Commercial deviations
Schedule 6 Technical deviations
Schedule 7 List of special Tools & Tackles
Schedule 8 Additional information.
Schedule 9 Qualification Information [Technical & Financial]
Schedule 10 Details of Tools and plants and man power deployment
Schedule 11 A & 11B Schedule for activities & Commissioning.
Schedule 12 Type Test Charges
Schedule 13 List of optional spares and cost.
Schedule 14 Guaranteed loss of transformer.
Schedule 15 List of vendors.
Schedule 16 Annexure 'A' No deviation certificate
Schedule 17a & 17b Proforma for Bid guarantee
Schedule 18 Proforma for letter of undertaking
Schedule 19 VOID
Schedule 20a & 20b Power of attorney for the bidder
Schedule 21 Guaranteed Declaration
Schedule 22 Check list
DRS sheets Relevant Technical details for Materials / Equipments
To be Uploaded Contract Quality Assurance Programme
To be Uploaded Type Test Certificates
To be Uploaded & furnished Bid Security/EMD
To be Uploaded Written Power of Attorney
To be Uploaded Letter of Undertaking
To be Uploaded No Deviation Certificate
To be Uploaded GIS manufacturer -1 credentials
To be Uploaded GIS manufacturer -2 credentials
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
A1 : GUARANTEED TECHNICAL PARTICULARS FOR POWER TRANSFORMERS
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Class of Power Transformer 5 MVA 33/11 kV Power transformer
1 Name of the Manufacturer and country of origin
2 Reference standard
3 Service [Indoor/outdoor]
4 Continuous rating under conditions specified in IS-2026 Part-I, 1977 Clause No.3 : HV
a. 1. With ONAN cooling - MVA
2. With ONAF cooling - MVA
3. With OFAF cooling - MVA
b. Rated no load voltage
6 a. Rated Frequency : (Hz)
b. Number of phases
7 Current at rated voltage and on principal tap-Amp :HV
8 Maximum hot spot temperature rise calculated by formula 0C
9 Flux density at rated voltage and rated frequency in tesla
10 Temperature rise of top oil, oC by the thermometer.
11 Temperature rise of winding measured by resistance.
a. With ONAN cooling oC
b. With ONAF cooling oC
c. With OFAF cooling oC
d. Period of operation of transformer at full load without calculated winding hot spot temperature exceeding 140oC and when
50% coolers fail
100% coolers fail (refer clause no. 7.9)
12 No. of windings
13 Connections HV
14 Connection Symbol and vector group
a. Type of tap changer
b. Tap step (percent)
c. Total tap range (+) percent to (-) percent
d. Tappings provided at
e. Type of regulation :
Constant flux regulation
Variable flux regulation
Combined regulation
16 (A) Magnetisation data at no load, at rated frequency (along with tolerance if any)
a. Current in Amps
b. Power factor
c. Loss in KW (core loss + dielectric loss)
d. Max. flux density in lines/sq.cm.
i. At 90% rated no load voltage
ii. At 100% rated no load voltage
iii. At 110% rated no load voltage
iv. At maximum rated primary voltage (i.e. 105% rated no load voltage)
16 (B) i)Max No-load loss at rated frequency at Principal Tap (KW)
ii) Max No-Load loss at voltage corresponding to the Highest Tap (KW)
17 Max.load loss in KW at rated current and at 750C At lowest tap At principal tap At highest tap
a. For ONAN rating KW
b. For ONAF rating in KW
c. For OFAF rating in KW
Max. I2R loss in KW at rated current and at 75◦C
a. For ONAN rating in KW
b. For ONAF rating in KW
c. For OFAF rating in KW
Max. Auxiliary Loss at rated Voltage & frequency
Note for Sl. No. 16 & 17: Guaranteed values of the losses shall be indicated which shall be firm & without indicating the tolerance limit
18 Impedance at rated current and frequency at 75oC on Line MVA base. HV to IV HV to LV IV to LV
a. At normal tap in %
b. At max. voltage tap in %
c. At min. voltage tap in %
19 Reactance at rated current and frequency and normal tap on rated MVA base:
20 Zero sequence impedance at reference temperature of 75oC at principal tap ………….%
NOTE: 1) The above impedance values shall be achieved with the winding arrangement at the discretion of the manufacturer without using reactor for 220/66/11kV, 100MVA & 150MVA Transformers. 2) The above impedance values shall be achieved with the winding arrangement for 100MVA, 220/110/11kV Auto Transformer as follows: CORE – LV – IV – Regulating – HV without using reactor. 3. The tolerance for the above impedance values shall be as per IS 2026- Part I (2011) or latest version
21 Resistance at 75oC
HV winding in Ohms in %
IV winding in Ohms in %
LV winding in Ohms in %
22 Efficiency at 75oC as derived from guaranteed.loss figures At Unity p.f At 0.8 p.f
a. At 125% full load
b. At 100% full load
c. At 75% full load
d. At 50% full load
23 a. Maximum efficiency ………….%
b. Load at which maximum efficiency occurs (% of full load)
24 Regulation at full load and at 75oC
a. At unity p.f. in %
b. At 0.8 p.f. (lag) in %
25 a. Short time thermal rating of LV winding/tertiary winding in KA & duration in seconds.
b. Short time thermal rating of IV winding in KA & duration in seconds.
c. Short time thermal rating of HV winding in KA & duration in seconds.
26 Permissible overloading - HV
27 Test voltages HV IV LV HV-N LV-N
a. Lighting impulse withstand kV (peak)
b. Power frequency voltage withstand kV (ms)
c. Switching impulse withstand kV (peak)
28 Partial discharge level at 364 kV as per IEC 44(4)
29 RIV at 1.1 times minimum phase to ground voltage
30 Design value of surges transferred on tertiary terminals.
a. For 950 kV peak. 1.2/50 micro second surge striking HV terminal and with :
i. Both the open delta tertiary terminals open kV (peak).
ii. One of the open delta tertiary terminals earthed kV (peak).
b. For 550/325 kV peak 1.2 / 50 micro second surge striking IV terminal & with :
i. Both the open delta tertiary terminals open kV (peak).
ii. One of the open delta tertiary terminals earthed k V (peak).
31 Noise level when energised at normal voltage and normal frequency at no load (db)
32 External short circuit withstand capacity (MVA) & duration (seconds)
33 Over flux withstand capability of the transformer :
34 Insulating and cooling medium
35 Approximate weights
b. Windings (Kg)
c. Tank & Fittings (Kg)
e. Untanking weight (Kg)
f. Total weight (Kg)
36 Required quantity of oil in litres
37 Terminal arrangement
ADDITIONAL TECHNICAL PARTICULARS:
1 Details of Core (along with Tolerance if any):
a. Type of core configuration
b. Type of core joints
c. Flux density at 90% of rated voltage and frequency Tesla :
d. Flux density at 110% of rated voltage and frequency. Tesla :
e. Material of core lamination
f. Approximate core weight
g. Type of Joints used between core limb and yoke
2 Details of Windings:
a. Conductor area in sq.cm and current density in Amps/Sq.cm (at rated current). Current density A/sq. cm Conductor area sq.cm
b. Material of winding conductor
c. Approximate weight of winding (along with tolerance if any)in kgs Kgs
d. Type of windings
e. Winding insulation Type and class Graded or ungraded
f. i. Insulating material used for :
1. Regulating winding
ii. Between HV and IV and LV as applicable
iii. Between core & LV side.
iv. For core bolts, washers and end plates
v. Regulating winding & earth.
g. i. Type of axial coil support
ii. Type of Radial coil support :
h. Core bolt insulation voltage
i. Details of special arrangement provided to improve surge voltage distribution in the windings
j. Approximate weight of winding (Kgs) (Tolerance if any on the above)
k. Minimum clearance (mm) In oil In Air
Between Phases Phase to ground Between Phases Phase to ground
3 Details of Tank :
a. Material for Transformer Tank
b. Type of the tank
c. Mininum thickness of sheet
ii. Bottom (mm)
iii. Cover (mm)
iv. Cooling tubes/Radiators (mm)
d. Vacuum recommended for hot oil circulation (torr)
e. Vacuum to be maintained during oil filling in transformer tank (torr)
f. Vacuum to which the tank can be subjected without distortion (torr)
Transverse Axis Longitudinal Axis
g. No. & size of bi-directional wheels provided.
h. Track gauge required for the wheels
4 Details of painting at works and site
5 (a) Minimum clear height for lifting bell and for lifting core & windings from tank (mm) (untanking height).
(b) Minimum clear hieght for lifting (mm)
II. Bushings - HV
- HV / IV Neutral
6 Shipping details :
i. Parts detached for transport
ii. Weight of heaviest package in Kgs
iii. Weight of other heavy packages in Kgs
iv. Dimensions of largest package
a. Length in mm
b. Breadth in mm
c. Height in mm
v. Dimensions of other heavy packages:
a. Length in mm
b. Breadthin mm
c. Height in mm
7 Details of Bushings HV IV LV Neutral
b. Rated voltage class - KV
c. Rated current - Amps
d. Power frequency, visible corona discharge voltage - kV (ms)
e. One minute dry withstand power frequency voltage - kV (ms)
f. One minute wet withstand power frequency voltage - kV (ms)
g. Under oil Flashover or Puncture power frequency voltage - kV (ms)
h. 1.2 / 50 ms. Lighting impulse withstand voltage - kV (Peak)
i. Switching surge withstand voltage - kV (peak)
j. Under oil Flashover or puncture impulse voltage - kV (peak)
k. (a) Creepage Distance in air
(b) Creepage Distance (protected)
l. Quantity of oil in bushing and specification of oil used (Kgs)
m. Whether test tap is provided
n. Weight of assembled bushing
o. Phase to earth clearance in air of live parts at the top of bushing.
8 Cooling system
a. Grade of oil
b. Total weight of oil in radiator in Kgs/litres
c. Total weight of radiator without oil in Kgs.
d. Total radiating surface in square meters
e. Method of drying out transformer at site
f. Type and make of material used for the radiators with size.
g. Type of radiator
h. Total number of Radiators/Banks for transformer and over all dimensions.
i. Rating of Transformer with one radiator bank out of service.
j. Total weight of radiators in Kgs
k. Type of mounting
l. Vacuum withstand capability
9 Cooling equipment Fan Motor Pump Motor
a. Make and Type (Details)
b. Number of connected units (nos.)
c. Number of standby units (nos.)
d. Rated Power (KW)
e. BHP of driven equipment
f. Capacity (cu m/min) or (Litres/Minute)
g. Rated voltage (Volts)
h. Locked rotor current (Amps)
i. Temperature range for which control is adjustable
j. Efficiency of motor at full load (percent)
k. Temp. rise of motor at full load (oC)
l. Whether the fan and/or pumps suitable for continuous operation at 85% of their rated voltage
m. Estimated time constant in hours for
i. Natural cooling
ii. Forced air cooling
10 On Load Tap Changing gear
c. Power flow (uni-directional or bidirectional or restricted bi-directional)
d. Rated voltage to Earth kV
e. Rated maximum current Amps
f. Step voltage V.
g. Number of steps
h. Control : Manual / Auto / Local / Remote / Independent / Parallel.
i. Auxiliary supply details
j. Voltage control (whether automatic or manual)
k. Line drop compensation Provided / Not provided.
l. Protective devices
m. Time for complete tap change (one step) sec.
n. Divertor selector switch Transient time - Cycles.
o. Value of maximum short circuit current Amps.
p. Maximum impulse withstand test voltage with 1.2/50 micro seconds full wave between switch assembly and earth (kV peak)
q. Maximum power frequency test voltage between switch assembly and earth - kV rms.
r. Maximum impulse withstand test voltage with 1.2/50 micro seconds across the tapping range (kV peak).
s. Approximate over all dimensions of Tap Changer in mm.
t. Approximate over all weight Kgs.
u. Approximate over all quantity of oil-ltrs/Kgs.
v. Particulars of the OLTC control panel for installation in the control room.
11 Over all dimensions of transformer including cooling gear, tap changing gear etc.
d. Reference drawing No.
12 Whether oil temperature indicator provided (Yes/No).
13 Type of oil level indicator and whether supervisory alarm contact for low oil level provided (Yes/No)
14 Type and size of Gas operated relay and whether supervisory alarm and trip contacts provided and their size and Nos.
15 Temperature indicators Oil Temp. indicator Winding temp. indicator
a. Make and Type
b. Permissible setting ranges for alarm & trip.
c. No. of contacts
d. Current rating of each conntact
e. Whether remote indicator provided, if, so, whether equipment required at purchaser's control room is included.
f. Size and No.
16 Ratio and Type of CT used for winding temperature
17 Type and size of Thermostat used
For Tr. Tank OLTC
18 No. of Breathers provided (No.)
19 Type of de-hydrating agent used for breathers
20 a. Capacity of conservator vessel litres
b. Volume between the highest and lowest visible oil level (litres)
21 Valve sizes and number required/ fitted
a. Drain valves - mm - No.
b. Filter valves - mm - No.
c. Sampling valves - mm - No.
22 a. Type and make of pressure relief device
b. No. of each type of devices per transformer unit (Nos.)
c. Minimum pressure at which the device operates (Kpa)
23 Details of current transformers provided for tertiary
a. Type and voltage class
b. No. of cores (Nos.)
d. Accuracy class
f. Accuracy limit factor
24 Lifting jacks
a. Governing standard
b. No. of jacks in one set
d. Capacity (tonnes)
g. Height in clsed position (mm)
h. Mean diameter of thread (mm)
Characteristics of Insulating oil to be used
Viscosity at 40 ºC in mm²/s
Viscosity at -30 ºC in mm²/s
Pour point in ºC
Water content in mg/kg
Breakdown voltage in kV
Density at 20 ºC in g/ml
Particle content
2 – Refining/stability
Acidity in mg KOH/g
Interfacial tension in mN/m
Total sulphur content
Corrosive sulphur
Potentially corrosive sulphur
Inhibitors of IEC 60666 in %
Metal passivator additives of IEC 60666 in mg/kg
Other additives
2- Furfural and related compounds content in mg/kg
3 - Performance
Oxidation stability for uninhibited oil – 164 hrs
-Total acidity in mg KOH/g
Gassing tendency
4 – Health, safety and environment (HSE)
Flash point in ºC
PCA content in %
PCB content in mg/kg
5 – Carbon Composition FTIR method CA %
6 – Details of oil preserving equipment offered.
NOTE 1. HV: High Voltage. IV : Intermediate voltage IN : Low voltage 2. Regulation of Transformers: Each tap shall be designed for the full rated MVA without exceeding the temperature and shall withstand continuously 15% voltage above the rated voltage of the tap. 3. Insulation for 100 MVA transformer: The HV & MV winding of the transformer shall have graded insulation. The insulation class of the neutral end of the winding shall be graded to 170 KVP (impulse) mid 70KV (power frequency withstand). The 11 KV tertiary winding and terminals shall be capable of withstanding the surge voltage of 170 KV 4. Frequency:- the transformer shall be Suitable for continuous operation with a frequency variation of ±5% from normal of 50Hz without exceeding the specified temperature rise. 5. Impedance: Supplier shall indicate the guaranteed impedance and tolerance. Impedance shall include positive and zero sequence and shall be expressed in terms of the branches of the star connected equivalent diagram, all on the same MVA basis and the range shall be given for each branch of the equivalent circuit in turn
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
Bidder's Name & Address alongwith GSTIN no. : To,
The General Manager, Projects Corporate Office, CESC Corporate Office, Mysore - 570017.
A1 : GUARANTEED TECHNICAL PARTICULARS FOR GIS MODULES
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Sl. No. Particulars 33kV
1.0 HIGH VOLTAGE CIRCUIT BREAKERS
1.1 Makers name and country of manufacture
1.2 a) Manufacturers type and designation
b) Single pressure type Yes/No
c) Common enclosed phases Yes/No
d) Number of breakers in series
e) Class of circuit breaker (C2-M2) Yes/No
1.3 Applicable Standards
1.4 Rated Voltage kV
1.5 Service Voltage kV
1.6 Rated continuous voltage for rated breaking capacity
1.7 Ambient temperature assumed for design:
b) Minimum daily average 0C
1.8 Continuous Current:
b) Under site condition Amps
1.9 a) Rated short time current kA
b) Rated time Sec.
1.10 Maximum rise of temperature over ambient for current rating under
a) Clause 1.8 above 0C
b) Clause 1.9 above 0C
1.11 Open/Close time
a) Closing time ms
b) Dead time ms
c) Break time ms
d) Make time ms
e) Arcing time max ms
f) Maximum tolerance in open/close time between different poles ms
1.12 Rated operating duty
1.13 Interrupting capacity based on duty cycle in clause 1.12 above
a) RMS value of AC component KA
b) Percentage DC component
1.14 Interrupting capacity
a) at maximum voltage kA rms
b) at minimum voltage kA rms
1.15 Rated transient recovery voltage
a) Method of representing TRV Four/Two parameters
b) Value of parameters
c) First pole to clear factor
d) Type of devices, used to limit the rate of rise of re-striking voltage
e) Type of devices, if any used to obtain uniform voltage distribution between breakers
1.16 Rated making capacity
a) at higher rated voltage kA (peak)
b) at lower rated voltage kA (peak)
1.17 Latching current kA
1.18 Restrike guarantee
1.19 Reignition performance
1.20 Short Circuit test certificate enclosed YES/NO
Oscillogram enclosed YES/NO
1.21 Short line fault interrupting capacity
a) Method of representing TRV Four/Two parameters
b) Value of parameters
c) Details of additional capacitors if used for TRV control
1.22 Type of main contacts
1.23 Type of arcing contacts and/or arc control device
1.24 Material of contacts:
c) Whether contacts are silver faced
1.25 Insulation level of the breaker:
a) One minute power frequency withstand voltage kV (rms)
b) Switching surge withstand test voltage kV (peak)
c) Impulse withstand test voltage kV (peak)
1.26 Rated duty of
a) Closing resistors
b) Opening resistors
1.27 Capacity to interrupt delayed zero passage fault current
a) Oscillogram enclosed Yes/No
b) Test reports enclosed Yes/No
1.28 Whether the circuit breaker is fixed trip or trip free
1.29 Method of tripping:
b) Emergency (complete description of manually operated emergency tripping device)
1.30 a) Type of tripping mechanism
b) No. of trip coils
1.31 a) Normal voltage of trip coil Volts
b) Pick-up range Volts
c) Trip amps (per coil) Amps
1.32 a) Power at normal voltage of closing mechanism Watts
b) Power at 85% of normal voltage Watts
c) Close amps (per coil) Amps
1.33 Type of closing mechanism
1.34 Normal voltage of closing coils Volts
1.35 a) Total interrupting time measured from instant of trip coil energization to arc extinction of resistor current Cycles
b) Closing time measured from instant of application of power to closing device up to arcing contacts touching Cycles
c) Reclosing time Cycles
1.36 Critical current (current giving the longest arc when a break takes place) A
1.37 Maximum voltage factor of the circuit breaker when switching off:
a) Unloaded transformer
b) Loaded transformer
c) Open circuited lines
d) Small inductive current of 10A
e) Capacitor bank
f) Breaking cable charging current (250 A for 245 Kv, 125A for 72.5 KV)
g) Breaking line charging current (125 A for 245 kV, 10A for 72.5 KV).
1.38 When switching off asynchronous system:
a) Maximum current kA
b) Maximum recovery voltage between contacts of one pole KV
c) Test reports for asynchronous switching duty enclosed Yes/No
1.39 a) Number of openings at rated capacity, the circuit breaker is capable of performing without inspection, replacement of contacts or other main parts
b) Cumulative switching capacity without requiring maintenance Million Amps
1.40 Particulars of SF-6 gas:
a) Gauge Pressure of SF-6 at 200C Bar
iii. “Gas Refill” level
iv. “Breaker Block” level
v. “Over Pressure” level
b) Maximum permissible moisture content of SF6 gas ppm by wt.
c) Type of monitor provided for SF6 gas
d) Maximum leakage rate of SF6 gas per year at normal pressure %
e) Breaker pressure relief device:
i. Rupturing pressure bar
ii. Time to rupture seconds
iii. Quantity and location on breaker
iv. Construction material of diaphragm
f) Quantity of SF6 gas in complete breaker (3-Phase) Kgs
g) Circuit breaker enclosure:
i. Design pressure Bar
ii. Routine test pressure Bar
iii. Type test pressure Bar
iv. Operating pressure Bar
v. Maximum time for de-gassing and regassing of circuit breaker compartment Hrs.
h) Circuit breaker enclosure over pressure device operating pressure Bar
i) Type of absorbent device for gas decomposition provided and quantity. Kg
j) Moisture absorbent device and quantity Kg
k) Design life time of moisture absorbers Years
l) Weight of complete circuit breaker assembly Kg
m) Material of circuit breaker enclosure
1.41 Voltage withstand V/S time graph enclosed Yes/No
1.42 INSULATORS:
c) Descriptive pamphlet No.
e) Insulation class
f) One minute dry power frequency withstand voltage kV (rms)
g) Flashover voltage kV
h) Full wave impulse withstand voltage kV (peak)
i) Switching surge withstand voltage kV (peak)
j) Puncture value of insulator in SF6 gas kV
- Design bursting pressure Gauge bar
- Routine test pressure Gauge bar
- Arcing test 3 Sec. kA
1.43 General outline drawing enclosed, No.
1.44 Type of operating mechanism pneumatic/ hydraulic/spring charged
1.45 Spring charging mechanism
a) Spring charging motor
i. Rated voltage V
ii. Rating Watts
iv. Class of insulation
v. Satisfactory operation of spring charging motor between 80%-110% of rated voltage Yes/No
vi. Time required to charge spring from fully discharged condition Sec.
vii. Overload and short circuit protection particulars
b) Is provision made for immediate charging of closing spring after a closure Yes/No
c) Adequate spring reserve for one O-C-O operation without intentional time delay Yes/No
d) Mechanical indication for spring charged/discharged condition provided Yes/No
e) Whether slow closing/opening is feasible for maintenance testing Yes/No
f) No. of close-open operations possible after failure of Auxiliary supply
1.46 Pneumatically operated mechanism and compressed air system
a) Pneumatic operating system
i. Pressure switches for monitoring air pressure provided Yes/No
ii. Minimum air pressure required for closing Kg/cm2
iii. Minimum air pressure required for tripping Kg/cm2
iv. Maximum air pressure the local air receiver can withstand Kg/cm2
v. Setting of low pressure switch Kg/cm2
vi. Setting of high pressure switch Kg/cm2
vii. No. of potential free contacts on each pressure switch
viii. Pressure at which local receiver safety valve opens Kg/cm2
ix. Capacity of local reservoir Liters
b) Compressed air system:
i. Unit or centralised
ii. Air compressor capacity
iii. Rated pressure M3/hr
iv. Pressure at which central receiver safety valve opens Kg/cm2
v. Compressor operation starts at pressure Kg/cm2
vi. Compressor operation stops at pressure Kg/cm2
vii. Time for air compressor to charge central storage reservoirs
- From atmospheric to pressure indicated in item-v above Minutes
- From pressure indicated in item-v to item-vi above Minutes
viii. Compressor motor details enclosed Yes/No
ix. Control scheme drawing enclosed Yes/No
x. Control panel with complete auto start-stop controls, protection and interlocks provided Yes/No
xi. Piping bus scheme provided as required, complete with piping valves, supports, bends etc. included to make compressed air system complete Yes/No
xii. Calculation for compressed air system sizing including compressors piping and receivers enclosed Yes/No
xiii. Compressor air pipe
c) No. of close-open operations possible after failure of ‘AC’ supply
1.47 Hydraulic operating mechanism
a) Operating mechanism pressure
i. Nominal Kg/cm2
ii. Maximum Kg/cm2
iii. Alarm level (pump up) Kg/cm2
iv. Breaker block level Kg/cm2
b) No. of stored close-open operations from nominal to “Breaker Block” pressure
c) Reduction in pressure
i. “Close” operation Kg/cm2
ii. “Open” operation Kg/cm2
d) No. of close-open operations possible after failure of ‘AC’ supply to the motor
e) Hand pump-set for emergency operation provided Yes/No
1.48 Whether all type test reports as per latest relevant IEC standards are enclosed? Yes/No
1.49 Whether all routine/acceptance tests as per latest relevant standards will be carried out on each circuit breaker Yes/No
1.50 a) Whether breaker construction suitable for uprating later Yes/No
b) If yes, feasibility and extent of uprating possible
1.51 a) Linking mechanism for single pole units For closing / For tripping
b) Details of construction of linking mechanism components like operating rod:
Material specification
1.52 Auxiliary supply for heaters
a) AC voltage supply Volts
b) Total power required Watts
1.53 Auxiliary contacts
iii. Make before break
b) Continuous current carrying capacity A
c) Breaking capacity at 220 V DC A
d) Rated voltage V
1.54 Limit switch contacts
a) Continuous current carrying capacity A
b) Breaking capacity at 220 V DC A
c) Rated voltage V
2.0 HIGH VOLTAGE DISCONNECT SWITCHES (ISOLATORS) AND EARTH SWITCHES:
These details shall be separately furnished for 66kV (a)Isolators, (b) high speed motor operated earth switches and (c) hand operated maintenance earth switches:
(a)Isolators: 66kV
2.1 Makers name and country of manufacture
2.2 Manufacturers type and designation
2.3 Reference Standards
2.4 Rated voltage kV
2.5 Maximum design voltage at which the isolator can operate kV
2.6 Frequency Hz
2.7 Derating factor, if any, for specified site condition
2.8 Mechanical endurance class of Isolators M2 Yes/No
2.9 Class of Electrical endurance for earthing Switches
i. For high speed earthing switch with short circuit making capability.
ii. For Maintenance earthing switches
2.10 Current rating:
a) Continuous at site condition A
c) One second KA
d) Three second KA
e) Fault making capability(for earth switches)
211 a) Maximum temperature of current carrying parts when carrying rated current continuously 0C
b) Ambient temperature (Maximum/Average) for which (a) is applicable 0C
c) Maximum temperature of current carrying parts after carrying 40 KA current for
2.12 a) Short circuit type test certificates or reports No.
b) Whether (a) is enclosed Yes/No
2.13 Insulation tests:
a) One minute power frequency withstand voltage:
i. Across the isolating distance KV
ii. To earth and between poles KV
b) 1.2 x 50 microsecond impulse withstand voltage (+ or – polarity):
i. Across the isolating distance KV (peak)
ii. To earth and between poles KV (peak)
2.14 Contacts and material of current carrying parts:
a) Type of main and arcing contacts.
b) Material of contacts
i. Whether contacts are silver faced
ii. Thickness of silver facing
d) Material used for current carrying parts
e) Size & thickness of contacts
2.15 Rated switching capacity:
a) Capacity to interrupt magnetizing current (at p.f.) A
b) Capacity to interrupt line charging current (at p.f.) A
c) Rated making current A
d) Capacity to switch power transformer A
e) Transformer in rush current making capacity A
f) Capacity to energize GIS bus length M
g) Capacity to de-energize GIS bus length M
2.16 Operating time:
a) Opening time ms
b) Total opening time ms
c) Closing time ms
d) Charging time ms
2.17 Clearance:
a) Between poles mm
b) Between live parts and earth mm
c) Between live parts when the switch is open
i. On the same pole mm
ii. Between adjacent poles mm
2.18 Type of interlocks
2.19 a) Torque required to operate the moor operated isolator Kg-m
b) Torque required to manually operate the isolators, high speed earth switches and maintenance earth switches Kg-m
2.20 Speed of make and break
2.21 Over travel distance after contact made
2.22 Number of auxiliary switches:
a) N.O. type “a”
b) N.C. type “b”
c) Make before break type
d) Rated voltage V
e) Rated continuous current A
f) Breaking capacity at rated voltage A
2.23 Number of fault closing operations at rated short circuit current before:
a) Maintenance is required
b) Deterioration of dielectric withstand voltage occurs
2.24 Gauge pressure of SF6 gas at 200C
a) Rated pressure bar
b) Absolute pressure (gauge) bar
c) Minimum pressure at rated kV bar
d) Maximum safe pressure bar
e) Lo-pressure alarm bar
f) Very-lo pressure alarm bar
g) Over pressure alarm bar
h) Type of relief device (diaphragm etc)
i) Absorbent device for gas decomposition products provided (if yes, type & quantity) Yes/No
j) Moisture absorbent device type & quantity Kg
k) Enclosure design pressure bar
l) Enclosure test pressure bar
m) Enclosure over pressure device operating pressure bar
n) Quantity of SF6 gas in the enclosure Kg
o) Total weight of Isolator / Earth switch assembly Kg
2.25 Provision for verifying contact position
2.26 Viewing ports provided Yes/No
2.27 Insulator data
b) Torsional strength Kg m
c) Cantilever strength upright Kg
d) Power frequency dry flash-over voltage KV
e) Power frequency wet flash-over voltage KV
f) Impulse flash-over positive wave(1.2x50us) KV (peak)
g) Impulse withstand (1.2x50us) KV (peak)
h) Power frequency puncture voltage KV
2.28 a) Manual earth switch bushing insulator data
i. Power frequency flashover voltage KV (rms)
ii. Impulse flash over voltage KV (peak)
b) High speed earth switch bushing insulator data
i. Power frequency flash over voltage KV (rms)
ii. Impulse flash over voltage KV (peak)
2.29 Switch design:
a) Rotating/tilting/lifting
b) Horizontal/Vertical break
2.30 Operating mechanism
Manual/Pneumatic/Motor
(b) high speed motor operated earth switches:
2.1 Makers name and country of manufacture
2.2 Manufacturers type and designation
2.3 Reference Standards
2.4 Rated voltage kV
2.5 Maximum design voltage at which the isolator can operate kV
2.6 Frequency Hz
2.7 Derating factor, if any, for specified site condition
2.8 Current rating:
a) Continuous at site condition A
c) One second KA
d) Three second KA
e) Fault making capability(for earth switches)
2.9 a) Maximum temperature of current carrying parts when carrying rated current continuously 0C
b) Ambient temperature (Maximum/Average) for which (a) is applicable 0C
c) Maximum temperature of current carrying parts after carrying 40 KA current for
2.10 a) Short circuit type test certificates or reports No.
b) Whether (a) is enclosed Yes/No
2.11 Insulation tests:
a) One minute power frequency withstand voltage:
i. Across the isolating distance KV
ii. To earth and between poles KV
b) 1.2 x 50 microsecond impulse withstand voltage (+ or – polarity):
i. Across the isolating distance KV (peak)
ii. To earth and between poles KV (peak)
2.12 Contacts and material of current carrying parts:
a) Type of main and arcing contacts.
b) Material of contacts
i. Whether contacts are silver faced
ii. Thickness of silver facing
d) Material used for current carrying parts
e) Size & thickness of contacts
2.13 Rated switching capacity:
a) Capacity to interrupt magnetizing current (at p.f.) A
b) Capacity to interrupt line charging current (at p.f.) A
c) Rated making current A
d) Capacity to switch power transformer A
e) Transformer in rush current making capacity A
f) Capacity to energize GIS bus length M
g) Capacity to de-energize GIS bus length M
2.14 Operating time:
a) Opening time ms
b) Total opening time ms
c) Closing time ms
d) Charging time ms
2.15 Clearance:
a) Between poles mm
b) Between live parts and earth mm
c) Between live parts when the switch is open
i. On the same pole mm
ii. Between adjacent poles mm
2.16 Type of interlocks
2.17 a) Torque required to operate the moor operated isolator Kg-m
b) Torque required to manually operate the isolators, high speed earth switches and maintenance earth switches Kg-m
2.18 Speed of make and break
2.19 Over travel distance after contact made
2.2 Number of auxiliary switches:
a) N.O. type “a”
b) N.C. type “b”
c) Make before break type
d) Rated voltage V
e) Rated continuous current A
f) Breaking capacity at rated voltage A
2.21 Number of fault closing operations at rated short circuit current before:
a) Maintenance is required
b) Deterioration of dielectric withstand voltage occurs
2.22 Gauge pressure of SF6 gas at 200C
a) Rated pressure bar
b) Absolute pressure (gauge) bar
c) Minimum pressure at rated kV bar
d) Maximum safe pressure bar
e) Lo-pressure alarm bar
f) Very-lo pressure alarm bar
g) Over pressure alarm bar
h) Type of relief device (diaphragm etc)
i) Absorbent device for gas decomposition products provided (if yes, type & quantity) Yes/No
j) Moisture absorbent device type & quantity Kg
k) Enclosure design pressure bar
l) Enclosure test pressure bar
m) Enclosure over pressure device operating pressure bar
n) Quantity of SF6 gas in the enclosure Kg
o) Total weight of Isolator / Earth switch assembly Kg
2.23 Provision for verifying contact position
2.24 Viewing ports provided Yes/No
2.25 Insulator data
b) Torsional strength Kg m
c) Cantilever strength upright Kg
d) Power frequency dry flash-over voltage KV
e) Power frequency wet flash-over voltage KV
f) Impulse flash-over positive wave(1.2x50us) KV (peak)
g) Impulse withstand (1.2x50us) KV (peak)
h) Power frequency puncture voltage KV
2.26 a) Manual earth switch bushing insulator data
i. Power frequency flashover voltage KV (rms)
ii. Impulse flash over voltage KV (peak)
b) High speed earth switch bushing insulator data
i. Power frequency flash over voltage KV (rms)
ii. Impulse flash over voltage KV (peak)
2.27 Switch design:
a) Rotating/tilting/lifting
b) Horizontal/Vertical break
2.28 Operating mechanism
Manual/Pneumatic/Motor
(c) Hand operated maintenance earth switches:
2.1 Makers name and country of manufacture
2.2 Manufacturers type and designation
2.3 Reference Standards
2.4 Rated voltage kV
2.5 Maximum design voltage at which the isolator can operate kV
2.6 Frequency Hz
2.7 Derating factor, if any, for specified site condition
2.8 Current rating:
a) Continuous at site condition A
c) One second KA
d) Three second KA
e) Fault making capability(for earth switches)
2.9 a) Maximum temperature of current carrying parts when carrying rated current continuously 0C
b) Ambient temperature (Maximum/Average) for which (a) is applicable 0C
c) Maximum temperature of current carrying parts after carrying 40 KA current for
2.10 a) Short circuit type test certificates or reports No.
b) Whether (a) is enclosed Yes/No
2.11 Insulation tests:
a) One minute power frequency withstand voltage:
i. Across the isolating distance KV
ii. To earth and between poles KV
b) 1.2 x 50 microsecond impulse withstand voltage (+ or – polarity):
i. Across the isolating distance KV (peak)
ii. To earth and between poles KV (peak)
2.12 Contacts and material of current carrying parts:
a) Type of main and arcing contacts.
b) Material of contacts
i. Whether contacts are silver faced
ii. Thickness of silver facing
d) Material used for current carrying parts
e) Size & thickness of contacts
2.13 Rated switching capacity:
a) Capacity to interrupt magnetizing current (at p.f.) A
b) Capacity to interrupt line charging current (at p.f.) A
c) Rated making current A
d) Capacity to switch power transformer A
e) Transformer in rush current making capacity A
f) Capacity to energize GIS bus length M
g) Capacity to de-energize GIS bus length M
2.14 Operating time:
a) Opening time ms
b) Total opening time ms
c) Closing time ms
d) Charging time ms
2.15 Clearance:
a) Between poles mm
b) Between live parts and earth mm
c) Between live parts when the switch is open
i. On the same pole mm
ii. Between adjacent poles mm
2.16 Type of interlocks
2.17 a) Torque required to operate the moor operated isolator Kg-m
b) Torque required to manually operate the isolators, high speed earth switches and maintenance earth switches Kg-m
2.18 Speed of make and break
2.19 Over travel distance after contact made
2.2 Number of auxiliary switches:
a) N.O. type “a”
b) N.C. type “b”
c) Make before break type
d) Rated voltage V
e) Rated continuous current A
f) Breaking capacity at rated voltage A
2.21 Number of fault closing operations at rated short circuit current before:
a) Maintenance is required
b) Deterioration of dielectric withstand voltage occurs
2.22 Gauge pressure of SF6 gas at 200C
a) Rated pressure bar
b) Absolute pressure (gauge) bar
c) Minimum pressure at rated kV bar
d) Maximum safe pressure bar
e) Lo-pressure alarm bar
f) Very-lo pressure alarm bar
g) Over pressure alarm bar
h) Type of relief device (diaphragm etc)
i) Absorbent device for gas decomposition products provided (if yes, type & quantity) Yes/No
j) Moisture absorbent device type & quantity Kg
k) Enclosure design pressure bar
l) Enclosure test pressure bar
m) Enclosure over pressure device operating pressure bar
n) Quantity of SF6 gas in the enclosure Kg
o) Total weight of Isolator / Earth switch assembly Kg
2.23 Provision for verifying contact position
2.24 Viewing ports provided Yes/No
2.25 Insulator data
b) Torsional strength Kg m
c) Cantilever strength upright Kg
d) Power frequency dry flash-over voltage KV
e) Power frequency wet flash-over voltage KV
f) Impulse flash-over positive wave(1.2x50us) KV (peak)
g) Impulse withstand (1.2x50us) KV (peak)
h) Power frequency puncture voltage KV
2.26 a) Manual earth switch bushing insulator data
i. Power frequency flashover voltage KV (rms)
ii. Impulse flash over voltage KV (peak)
b) High speed earth switch bushing insulator data
i. Power frequency flash over voltage KV (rms)
ii. Impulse flash over voltage KV (peak)
2.27 Switch design:
a) Rotating/tilting/lifting
b) Horizontal/Vertical break
2.28 Operating mechanism
Manual/Pneumatic/Motor
3.0 VOLTAGE TRANSFORMERS:
These details shall be furnished separately for 245 kV & 72.5 KV voltage transformers 66kV
3.1 Makers name & country of manufacture
3.2 Applicable standard
3.3 Type of VTs
3.4 Number of VTs
3.5 Insulation withstand level
a) Impulse withstand voltage 1.2/50 micro sec.wave KV (peak)
b) One minute power frequency withstand voltage KV (rms)
3.6 Number of secondary windings for each VT
3.7 Rated primary voltage KV
3.8 Rated secondary voltage V
3.9 Rated VA burden for each secondary winding VA
3.10 Rated power factor
3.11 Accuracy class for each secondary winding
3.12 Method of connection
a) Primary winding
b) Each secondary winding
3.13 Rated voltage factor
b) For 30 seconds
3.14 Maximum temperature rise of windings at 110% excitation and rated burden, when referred to specified ambient temperature 0C
3.15 a) Type of insulation (SF-6 foil insulation or cast resin)
b) Class of insulation of windings
3.16 Gauge pressure of SF6 gas at 200C
a) Rated pressure bar
b) Absolute pressure (gauge) bar
c) Minimum pressure at rated kV bar
d) Maximum safe pressure bar
e) Lo-pressure alarm bar
f) Very-lo pressure alarm bar
g) Over pressure alarm bar
h) Type of relief device (diaphragm etc) Yes/No
i) Absorbent device for gas decomposition products provided (if yes, type & quantity) Kg
j) Moisture absorbent device type & quantity Kg
k) Enclosure design pressure Bar
l) Enclosure test pressure Bar
m) Enclosure over pressure device operating pressure bar
n) Quantity of SF6 gas in the enclosure Kg
o) Total weight of VT assembly Kg
3.17 Transient response (if applicable)
3.18 Details of high speed switch (es) on secondary winding (alternative to fuses)
a) Make and type
c) Relay make and type
d) Relay coil rating Amp.
e) Details of operating mechanism
3.19 Time of discharging of power cables Sec
3.20 Descriptive manual enclosed with Bid Yes/No
3.21 Complete list of tests proposed by the manufacturer at works & site
3.22 Type test certificates enclosed Yes/No
3.23 Dielectric testing at site is proposed to be carried out through VTs Yes/No
3.24 Continuous, 5 Minute and short time rating of primary and secondary winding of VTs Amp / At 5% rated voltage & rated voltage factor / At 2% rated voltage
3.25 a) % voltage (ratio) error
b) Phase displacement
3.26 Capacitive discharge capability of the VT
3.27 Material of winding primary & secondary
3.28 Material and minimum thickness of VT enclosure
4.0 CURRENT TRANSFORMERS:
These details shall be furnished separately for 245 kV & 72.5 KV current transformers for all ratios: 66kV
4.1 Applicable standards
4.2 Type of CTs
4.3 Number of CTs
4.4 Insulation withstand level
a) Impulse withstand voltage 1.2/50 micro second wave KV (peak)
b) One minute power frequency withstand voltage KV (rms)
4.5 Number of cores per CT
4.6 Rated primary current for each core A
4.7 Rated secondary current A
4.8 a) Ratio taps for each core
b) Whether it is possible to adjust tap setting of any core independent of other cores Yes/No
4.9 Turns ratio for each core
4.10 Application of each core
4.11 (A) For Relaying Cores (PS Class):
(Data shall be furnished for all ratio taps. Bidder shall furnish data against sub-items as may be applicable for that particular core)
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
4.11 (B) For Relaying cores (5P20 class):
(Data shall be furnished for all ratio taps. Bidder shall furnish data against sub-items as may be applicable for that particular core)
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
a) Accuracy class
b) Rated burden VA
c) Accuracy Limit Factor
d) Minimum knee point voltage Vk Volts
e) Maximum excitation current at half the knee point voltage mA
f) Maximum secondary resistance Ohms
4.12 For metering cores:
(Data shall be furnished for all ratio taps)
a) Accuracy class
b) Rated burden VA
c) Rated power factor
d) Instrument security factor
a) Accuracy class
b) Rated burden VA
c) Rated power factor
d) Instrument security factor
a) Accuracy class
b) Rated burden VA
c) Rated power factor
d) Instrument security factor
a) Accuracy class
b) Rated burden VA
c) Rated power factor
d) Instrument security factor
a) Accuracy class
b) Rated burden VA
c) Rated power factor
d) Instrument security factor
4.13 Short time thermal current rating
b) Rated time Sec
4.14 Dynamic current rating kA (peak)
4.15 Maximum temperature rise of windings at rated primary current and rated burden, when referred to specified ambient temperature 0C
4.16 a) Type of insulation (SF6 foil or cast resin)
b) Class of insulation of windings
4.17 Magnetization characteristics: Mfr’s dwg. No.
4.18 Recommended setting of protective device (spark gap, etc) mm
4.19 Gap setting flashover characteristics Manufacturers drawing No.
4.20 Secondary impedance value Ohms
4.21 In case of ring type CTs whether it is possible to remove the CT without affecting / dismantling the adjacent compartment Yes/No
4.22 Gauge pressure of SF6 gas at 200C
a) Rated pressure bar
b) Absolute pressure (gauge) bar
c) Minimum pressure at rated kV bar
d) Maximum safe pressure bar
e) Lo-pressure alarm bar
f) Very-lo pressure alarm bar
g) Over pressure alarm bar
h) Type of relief device (diaphragm etc)
i) Absorbent device for gas decomposition products provided (if yes, type & quantity) Yes/No (Kg)
j) Moisture absorbent device type & quantity Kg
k) Enclosure design pressure bar
l) Enclosure test pressure bar
m) Enclosure over pressure device operating pressure bar
n) Quantity of SF6 gas in the enclosure Kg
o) Total weight of CT Kg
4.23 Complete list of tests proposed by the Manufacturer at works and site enclosed Yes/No
4.24 Type test certificates for each type of CTs enclosed Yes/No
4.25 Current error
4.26 Phase displacement error
4.27 Material of primary & secondary winding
5.0 LIGHTNING ARRESTERS:
These details shall be furnished separately for LAs for 245 kV & 72.5 KV GIS 66kV
5.1 Maker’s name
5.2 Country of manufacture
5.3 Manufacturers type designation
5.4 Applicable standards
5.5 Arrester class and type
5.6 Rated arrester voltage KV
5.7 Rated frequency Hz
5.8 a) Nominal discharge current (8/20 micro second wave) KA
b) Minimum discharge capability KJ/kV
5.9 Power frequency over voltage withstand capability voltage for:
a) 30 Sec. KV (rms)
b) 1 min. KV (rms)
c) Continuous KV (rms)
5.10 Maximum residual voltage at nominal discharge current KV (rms)
5.11 Discharge voltage at 5 KA discharge current KV (rms)
5.12 Discharge voltage at 10 KA discharge current KV (peak)
5.13 Discharge voltage at 20 KA discharge current KV (peak)
5.14 Minimum residual voltage of arrester KV (rms)
5.15 Impulse current withstand
a) High current short duration (4/10 Micro Second wave) KA (peak)
b) Low current long duration A (peak)
c) Virtual duration of rectangular wave Micro-sec.
5.16 One minute power frequency (dry) withstand voltage of arrester housing KV (rms)
5.17 Impulse withstand test voltage of arrester housing with 1.2/50 Micro Second wave KV (peak)
5.18 Total height of the arrester mm
5.19 Total weight of complete arrester including enclosure and gas Kg
5.20 Pressure relief class (as per IEC 99)
5.21 a) Range of milli-ammeter provided for leakage current measurement mA
b) Type and make of above
5.22 Drawings/information submitted with the bid
5.23 Explosion proof/non-explosion proof
5.24 Surge monitor provided Yes/No
5.25 Grading shields provided Yes/No
5.26 Whether type test reports are enclosed Yes/No
5.27 Volt/time characteristic enclosed Yes/No
5.28 Complete list of routine acceptance tests which will be carried out on the arresters enclosed Yes/No
5.29 VENDOR agreeable to carry residual voltage test at the nominal discharge current Yes/No
5.30 Gauge pressure of SF6 gas at 200C
a) Rated pressure bar
b) Absolute pressure (gauge) bar
c) Minimum pressure at rated kV bar
d) Maximum safe pressure bar
e) Lo-pressure alarm bar
f) Very-lo pressure alarm bar
g) Over pressure alarm bar
h) Type of relief device (diaphragm etc)
i) Absorbent device for gas decomposition products provided (if yes, type & quantity) Yes/No (Kg)
j) Moisture absorbent device type & quantity Kg
k) Enclosure design pressure bar
l) Enclosure test pressure bar
m) Enclosure over pressure device operating pressure bar
n) Quantity of SF6 gas in the enclosure Kg
o) Total weight of LA assembly Kg
5.31 Material and minimum thickness of LA enclosure
6 SF6 BUS DUCTS:
Following data shall be furnished separately for a) 66 kV GIS, 66 kV interconnection between transformer/UG cable/Over headline and 66 kV GIS. b) 66 KV GIS, 66 kV interconnection between 66/11 KV transformer and 66 KV GIS and 66 KV interconnection between 66/11 KV transformer & 66 KV GIS.
6.1 Equipment Rating
a) Nominal Operating Voltage kV
b) Highest Operating Voltage kV
c) Basic Impulse Insulation Level kV (peak)
d) Frequency Hz
e) Bus rating (continuous) at 200C ambient Amps
f) Rated short time current (3 sec) KA (rms)
g) 1 min. power frequency withstand voltage kV
h) Impulse withstand voltage 1.2/50 Micro Sec. wave kV (peak)
i) Switching surge withstand voltage kV (peak)
j) Maximum permissible operating temperature of current carrying parts (above ambient 450C) 0C
k) Temperature rise of enclosure at rated current (for site condition and above 450C ambient) for
ii. Outdoors 0C
iii. State assumptions on which calculations are based
l) Maximum safe continuous current that can be carried at site condition at:
i. 200C Ambient A
ii. 300C Ambient A
iii. 400C Ambient A
iv. 450C Ambient A
v. Limiting factors and the empirical relationship used to calculate these current ratings Yes/No
m) Maximum temperature (Hot spot) of conductor while carrying rated current at maximum ambient temperature 0C
n) Maximum temperature (Hot spot) of enclosure at rated current at maximum ambient temperature 0C
o) Temperature of conductor when rated short circuit current is carried for three seconds when short circuit occurs at maximum operating temperature
NOTE: Calculations to be furnished for the above.
6.2 Gauge pressure of SF6 gas at 200C
a) Nominal SF6 pressure Bar
b) Maximum SF6 pressure Bar
c) “Gas Refill” level Bar
d) “Breaker Block” level Bar
e) “Zone Trip” level Bar
f) “Over Pressure” alarm level Bar
g) Maximum permissible moisture content of SF6 gas ppm by wt.
h) Maximum leakage rate per year at nominal pressure
i. For complete station %
ii. For single gas compartment %
i) Amount of SF6 gas required to completely charge the complete installation including any tank storage system (please indicate separately for both the packages) kg
j) Amount of SF6 gas required for largest gas compartment kg
k) Design pressure of the enclosure bar
l) Routine test pressure of the enclosure bar
m) Test pressure of the enclosure bar
6.3 Pressure Relief Device (s)
a) Rupturing Pressure (gauge) Bar
b) Time to rupture, smallest section Seconds
c) Quantity and location on each section
d) Construction material of diaphragm
e) Write-up on features adopted for preventing burn through in the various enclosures, enclosed Yes/No
6.4 A Lengths & accessories of exit bus ducts considered in the layout proposed by the BIDDER (please indicate separately for interconnections with Over headline/UG cable/ transformers) For Over Head Tr. line/UG cable On 33 KV side On 11 KV side
on 33kv side for each transformer on 11kv side for each transformer
a) Straight lengths
d) Interface with transformer bay SF6 to air bushing
e) SF6 gas to air bushings for line bay
6.5 Design Data
a) Capacitance per meter bus duct pf
b) Resistance/meter/phase at 200C
i. Conductor Ohm
ii. Enclosure Ohm
c) Inductance reactance / meter / phase at 200C Ohm
d) i. Surge impedance of the enclosed bus Ohm
ii. Description of methods and calculations used to determine surge impedance and capacitance enclosed Yes/No
e) Electrical Resistance at 200C of
i. Bus enclosure Ohms/mtr
ii. Conductor Ohms/mtr
f) Maximum potential rise of enclosure at short circuit current V
g) Maximum power loss per single phase meter at 200C
ii. Conductor W
h) Total maximum power loss at 200C (please give basis and detailed calculation with method for verifying losses)
i. Complete 245 kV & 72.5 KV GIS W
ii. 245 KV & 72.5 KV Interconnection W
iii. Total 245 kV & 72.5 KV GIS including Transformer/over headline/UG cable exit bus duct W
i) Weight per single phase meter of bus duct (Exit bus duct) Kg
j) Weight per three phase meter of bus duct (main bus duct) Kg
k) Maximum unsupported span between supports (for main & exit bus ducts respectively) m
l) Allowable tolerance in height of support platform mm
m) Insulator material
i. Material (state alloy)
ii. Cross sectional area Sq.mm
iii. Minimum unsupported span
i. Material (state alloy)
ii. Outer diameter (OD) mm
iii. Thickness mm
iv. Finish of interior of pressurized bus duct enclosure
v. Vacuum withstand capacity of various types of enclosures m bar
f) Paint shade of exterior surface
i. Outer diameter (if spherical) mm
ii. Thickness mm
iii. No. of standard angles employed mm
q) Weight of each assembled bay, separately Kg
r) Distance between phase centre lines mm
s) Maximum electrical stress
i. SF6 gas kV/mm
ii. Insulator kV/mm
t) Material used in fabricating the following:
i. Breaker contacts
ii. Disconnecting switch surfaces
iii. Grounding switch surfaces
iv. Internal bus
v. Internal bus contact surfaces
vi. Bus enclosure
u) Description of technique used to control thermal expansion in:
v) v) Maximum length of single phase exit bus duct gas compartment (for 245 kV GIS & 72.5 KV GIS) m
w) Total weight of gas in this compartment kg
x) Total weight of largest sized compartment kg
y) y) Maximum length of single/three phase gas compartment (for main bus bar of 245 kV GIS & 72.5 KV GIS) m
z) Total weight of gas in this compartment kg
aa) Total weight of largest sized compartment kg
ab) Whether field connection of enclosure sections are made by means of bolting or welding (in case of welding specify the extent of field welding and the procedure which VENDOR proposes to adopt at site)
ac) Extra paint for retouching up at field included in the supply Yes/No
ad) Describe method of particle control employed
ae) Are shipping sections completely assembled lengths of bus duct Drawings, supporting this data and clearly illustrating the construction of the bus duct compartments, shall be submitted with the bid.
7.0 SF6 GAS TO AIR BUSHING (To be connected to transformer / Overhead Lines)
Following data shall be furnished for 66/11 KV Transformer.
7.2 Type (OIP/RIP etc)
7.4 Transport dimensions
7.5 Height above ground level required to remove bushings
7.6 Insulation class
7.7 Current rating
a) Continuous at an ambient of 450C Amps
b) Short time (3 Sec) Amps
7.8 SF6 gas service pressure (gauge) Bars
7.9 Design pressure (gauge) Bars
7.10 Test pressure (gauge) Bars
7.11 Bursting pressure (gauge) Bars
7.12 Permissible leakage rate at rated differential pressure, per year
a) 1 bar Mltr/Year
b) Rated pressure Mltr/Year
7.13 One minute dry & wet power frequency withstand voltage kV (rms)
7.14 Flashover voltage kV
7.15 Full wave impulse withstand voltage kV (peak)
7.16 Switching surge withstand voltage kV (peak)
7.17 Very Fast Transient Over voltage (Peak & Duration) kV/n sec.
7.18 Corona discharge voltage kV
7.19 Partial discharge extinction voltage (p.d. level less than 10 p.c) kV
7.20 Creepage distance
- Protected at 900 mm
7.21 Permissible safe cantilever loading on installed bushing Kg
7.22 Nature of dielectric medium employed in the bushing Kg
7.23 Volume of insulating medium per bushing
7.24 Material of bushing terminal clamp
7.25 Temperature range
a) SF6 gas side 0C
b) Transformer side 0C
7.26 Maximum oil pressure in bushing gauge Bar
7.27 Mounting position Deg from vertical position
7.28 Distance of bushing axis to grounded transformer wall under oil mm
7.29 Cantilever test load, 900 to bushing axis on both ends one after another at room temp and at inside pressure of
a) 2 bars (for 1 min) N
b) Rated pressure (for 1 min) N
7.30 Permissible cantilever moment at bushing flange
8.0 GENERAL DATA
8.1 The following data shall be furnished for 72.5 KV
a) Gas section diagram enclosed
b) No. of gas compartments per cable/overhead line incomer bay
c) No. of gas compartments per transformer bay
d) No. of gas compartments in main buses 1 & 2 respectively
e) No. of gas compartments in bus coupler bay
a) Material (state alloy) mm
b) Outer diameter (OD) mm
d) Finish of interior of pressurized GIS enclosure
e) Vacuum withstand capacity of various types of enclosures m bar
f) Paint shade of exterior surface
8.3 Mechanical strength of enclosures:
a) Design pressure Gauge bars
b) Operating pressure Gauge bars
c) Type test pressure Gauge bars
d) Routine test pressure Gauge bars
e) Leakage test pressure 30 min Gauge bars
f) Safety factor (type test/operating pressure)
8.4 Internal Arcing
a) Enclosure burn-through time at various currents Sec
b) Enclosure rupturing pressure Gauge bars
c) Barrier insulator rupturing pressure Gauge bars
d) Max. pressure rise at 40 kA (smallest section) Gauge bars
e) Data on burn-through preventive measures enclosed Yes/No
f) Test data submitted Yes/No
8.5 Description of the proposed methods to limit switching surges for breaker and disconnects enclosed Yes/No
8.6 Values of maximum switching surges guaranteed
8.7 Total losses when complete switchgear is operated at its rated capacity KW
8.8 Break-up of losses at rated current
a) 245 kV GIS KW
b) Bus duct between 245 kV GIS and transformer/UG cable KW
c) 72.5 KV GIS KW
d) Bus duct between 72.5 KV GIS & Transformer. KW
8.9 Interfaces:
a) Maximum lateral and longitudinal movement at interface due to expansion and contraction. mm
b) Maximum tensile and compressive forces at interface kg
c) Tolerance on positioning of flanges mm
d) SF6 gas pressure at interface
ii. Nominal permissible bar
e) Permissible tolerance on phase spacing of transformer terminals ±mm
f) Permissible tolerance on height of transformer terminals ±mm
g) Maximum allowable tolerance on phase spacing of transformer terminals that can be achieved by the compensator (bellow) ±mm
h) Maximum allowable tolerance on height of transformer terminals that can be achieved by the compensator (bellow) ±mm
i) Write-up on special grounding requirements enclosed Yes/No
8.10 Insulation System Monitoring Devices
a) Gas density detector
b) Gas pressure detector
c) Gas moisture content detector
d) Fault detector device
e) Optional equipment available
8.11 Generic Origin of Components
The Bidder is requested to list all material, metallic and non-metallic within switchgear interior, which are in contact with or might come into contact with the sulphur hexafluoride. Material Trade Name / Material Generic Origin / Material Location
8.12 Clearances:
The Bidder shall complete the following questionnaire in detail and provide any additional information not specifically requested but which may be of assistance to the PURCHASER in evaluating the integrity of the switchgear.
a) Minimum Insulating Clearance:
i. Main bus Creepage / Strike / Profile
ii. Line bus Creepage / Strike / Profile
iii. Circuit breaker to earth across contacts Creepage / Strike / Profile
iv. Disconnecting switch to earth across contacts Creepage / Strike / Profile
v. Earth switch to earth (enclosure) & across contacts Creepage / Strike / Profile
vi. SF6/XLPE insulated cable termination chamber Creepage / Strike / Profile
a) Name of manufacturer
b) Electrical Properties
c) Compatibility with material used in GIS
d) Impurities in percentage
e) Size of cylinder in which gas is proposed to be supplied
f) Condensation temperature
g) Physical properties
h) Tests to be conducted by the manufacturer at works.
i) Tests proposed to be conducted at site to detect and limit the moisture content in gas compartments
8.14 SF6 Gas Handling Equipment:
a) Make and Type of the Plant
b) Description of gas handling equipment
i. Compressor type
ii. Vacuum pump type
iii. Filtering equipment type
iv. Moisture removal equipment type
8.15 c) Time for evacuation of largest 3 Phase section of switchgear minutes
d) Time for refilling of largest 3 phase section of switchgear minutes
e) Nominal section capacity of vacuum pump m3/hr
f) Maximum vacuum obtainable by vacuum pump bar
g) Motor rating of vacuum pump kw
h) Storage capacity service tank kg
i) Gas filling capacity of compressor kg/hr
j) Maximum pressure of compressor bar
k) Rating of compressor motor kw
l) Operating voltage Volts
m) Control voltage Volts
n) Drying (moisture removal) capability of gas plant
o) Filtration/particle removal capability of the gas plant
p) Size of the molecular sieve
q) Length, width and height of the plant
r) Total weight of the plant
s) Electrical output
i. Compressor kw
ii. Vacuum pump kw
iii. Control system kw
8.16 a) Type and quantity of gas required at site for purging of GIS during erection
b) Above gas will be supplied by the Vendor as part of this contract Yes/No
8.17 a) Details of Portable SF6 gas detector to be supplied, provided Yes/No
b) Sensitivity of SF6 detector in atmosphere ppm
a) Rating of main ground bus
b) Touch potential
ii. Calculations enclosed Yes/No
c) Maximum expected circulating current in earth mat during normal operation A
8.19 Whether support framework included in the supply
a) Material Yes/No
b) Whether hot dip galvanized Yes/No
8.20 a) Required tolerance in surface level of the civil works to be carried out by the PURCHASER ± mm per meter
b) Foundation channels included in the supply
8.21 Insulators/Section barriers for GIS (For each type):
a) Type of insulators used
c) 1-minute power frequency dry withstand test voltage kV (rms)
d) Dry flashover value kV (rms)
e)1.2/50 microsec impulse withstand test voltage kV (peak)
f) Puncture value of insulator in SF6 gas kV
g) Maximum electrical field strength at rated voltage phase to earth kV/mm
h) Gas barrier routine test pressure Gauge bar
i) Gas barrier routine test pressure Gauge bar
j) Arcing test 3 sec kA
k) Weight of insulator kg
l) Partial discharge levels at 120% working voltage
i.For one bay (sensitivity 5 pico columbs)
ii. For individual insulator (sensitivity 5 pico columbs)
8.22 Whether the GIS complies to Cl. No. 4.1.7 of section–B of GIS specification regarding subsequent repairs/testing, in the event of a fault
9.1 BIDDER’s program for full type/routine testing of the GIS in accordance with IEC-62271-203
9.2 Tests to be carried out at site after erection (furnish complete details of the tests including details of the testing equipment, special adaptors and other accessories to be supplied by Bidder)
9.3 Detailed procedure for power cable HVDC testing including details of cable testing and isolating facilities and necessary adaptor interface to be supplied by Bidder.
9.4 What provisions are made for testing of circuit breakers, etc., at site and detailed procedure
9.5 What provisions are made for high voltage test connections
9.6 Procedure for leakage tests for acceptance
9.7 Detail the features in equipment to carry out partial discharge measurements at works/site
9.8 BIDDER’s programme for full production testing of each complete breaker as per IEC standard
9.9 Information regarding the insulation testing of following to earth and across open contacts:
i. Each complete breaker
ii. Disconnect switch
iii. Earth switch
9.10 The short circuit test reports should tabulate current, voltage and TRV on a unit test basis and on an equivalent breaker basis. The basis for assigning the rated interrupting time, proof of operating duty and pressures of dielectric and driving mechanism shall be clearly stated.
9.11 Procedure for obtaining voltage withstand vs time and its validity for the total equipment
9.12 Details of V F T O test on SF6 gas to oil bushing for transformer
10.0 Estimate of erection & testing/commissioning:
10.1 Downtime required to errect extension equipment by the side of equipment in service Days
10.2 Whether outage of the complete GIS will be required for erection, testing & commissioning for the extension Yes/No
10.3 Power supply required during erection, testing and commissioning
10.4 Detailed schedule of erection, testing and commissioning enclosed Yes/No
11.0 Reliability and Maintainability Programme:
11.1 Target for proposed equipment
11.2 Equipment life Years
11.3 Forced outage rate %
11.4 Forced outage duration Hours
11.5 Fixed outage of occurrences No. per year
11.6 Availability %
11.7 Mean time between failure (MTBF) Months
11.8 Mean time to repair (MTTR) Hours
11.9 Planned maintenance outage rate %
11.10 Planned maintenance outage duration Hours
11.11 Number of planned maintenance outages No. per year
11.12 Guaranteed number of loaded/unloaded operation of various equipment of GIS e.g. circuit breaker, disconnects, earthing switches, etc (Please mention itemwise).
Circuit breaker
Earthing switches
12.0 Previous Operational Experience
12.1 The ratings, classification and number of units are
12.2 Previously supplied to delivery in
12.3 Function Performed
12.4 Total equipment years
12.5 Total service life or number of operations
12.6 MTTF (Major Failures) – Failure modes & rates
12.7 MTTF (Minor Failures) – Failure modes & rates
12.8 List of in-service flash over in previously supplied equipment (date, owner, description of event, repair procedure and time)
12.10 Reliability forecasts
12.11 Repair / maintenance of one bay / any component of the bay will require outage of any other bay in same station Yes/No
12.12 Repair / maintenance of one bus bar will require outage of other bus bar in same station Yes/No
12.13 During later extensions, outage of parts already in service will be required for erection/testing Yes/No
13.0 Design Data
13.1 Ventilation requirements enclosed Yes/No
13.2 Special light fitting requirements if any, enclosed Yes/No
13.3 Suggested lighting level Lux
13.4 Details of recommended system for fire fighting enclosed Yes/No
13.5 Data for design of switchgear building enclosed Yes/No
13.6 Floor loading beneath breaker poles Kg/sq.m
13.7 Floor loading beneath bus ducts Kg/sq.m
13.8 Allowable max. tolerance for GIS floor ± mm/meters
13.9 Maximum floor loading
13.10 Recommended crane capacity & speed Tonnes & m/min.
13.11 Heaviest item weight Tonnes
13.12 Total auxiliary DC supply requirement
i. Continuous A
ii. Short time A
13.13 Total auxiliary AC supply requirement
14.0 INDUCTION MOTORS
14.1 Application/Designation
14.2 Manufacturer
14.3 Applicable Standards
14.5 Type of Duty
14.6 Duty Designation
14.7 Supply conditions:
a) - Rated Voltage V
- No. of phases
b) Allowable variations in
c) Permissible unbalance in supply voltage %
a) Full load Amps
b) Starting % FL
14.9 Full load efficiency %
14.1 Full load power factor
14.11 Method of starting
a) Starting % FLT
b) Maximum % FLT
14.13 Class of Insulation
14.14 a) Ref. Ambient Temperature 0C
b) Temperature rise by Res-Method 0C
14.15 Type of Enclosure
14.16 Degree of Protection
14.17 Suitable for Outdoor operation Yes/No
14.18 Normal winding connection Star/Delta
14.19 Type & No. of Terminals brought out
14.20 Winding suitable for 24 V space heating Yes/No
14.21 Shaft Orientation
14.22 Dimensional drawing enclosed Yes/No
15.0 LOCAL CONTROL PANELS
15.1 Make and country of manufacture
a) Type of construction
b) Degree of protection
15.2 Type of sheet steel (hot rolled/cold rolled)
15.3 Thickness of sheet steel
15.4 Paint treatment and colour shades
15.5 Weight of each panel Kg
15.6 Dimensions (width x depth x height) mm
15.7 Mimic bus, material colours
15.8 Space required for installation m2
15.9 General arrangement drawing attached Yes/No
15.1 Largest package for transport
b) Dimension mm
15.11 Instruments, components etc., transported, mounted on panels or separately packed
15.12 Cable glands included Yes/No
15.13 Fire retardant Instrument/control cables for interconnection as per Section-D included Yes/No
15.14 a) Cable installation hardware included Yes/No
b) Cable entry Top/bottom
15.15 Special cables (if required) included Yes/No
15.16 Special tools & devices for maintenance included (list attached) Yes/No
15.17 List of recommended spares for normal maintenance for a period of 5 years furnished (list attached) Yes/No
15.18 Components list of each panel enclosed Yes/No
15.19 Technical and descriptive literature of all components attached Yes/No
15.20 Auxiliary/Interposing relays
b) Type designation
c) Nominal voltage & variation %
d) Contacts hand reset/self reset
e) No. of pairs of contacts
i. Make contacts
ii. Break contacts
f) Speed of operation of relay
g) Pick-up/drop off ratio
h) Burden of the relay
i) Contact rating
i. Continuous A
j) No. of pairs of contacts
i. Make contacts
ii. Break contacts
k) Speed of operation of relay
l) Pick-up/drop off ratio
m) Burden of the relay
n) Contact rating
i. Continuous A
iii. Making current and duration A, AC/DC
iv. Resistive breaking A
v. Inductive A/DC
o) Detailed literature furnished Yes/No
15.21 Control switches
b) Front dimensions
c) Type of switch (stayput spring return/ discrepancy)
d) Type of handle
e) Contact development
f) Integral escutcheon plate or circuit label provided Yes/No
g) Contact rating
i. Continuous current A
iii. Breaking current
- Inductive A, DC
h) Elec. life expectancy based on 120 switching operation per hour operations No. of
i) Detailed literature furnished Yes/No
15.22 Push buttons
b) Actuator type
i. Momentary/maintained
ii. Shrouded to prevent inadvertent operation Yes/No
c) Whether integral engraved inscription plates provided Yes/No
d) Contact rating
i. Continuous rating A
ii. Voltages Volts
iii. Making current A
iv. Resistive breaking current A
v. Inductive breaking current A/AC
e) Electrical life expectancy based on 300 switching operation cycles per hour No. of operations
f) Detailed literature furnished Yes/No
15.23 Indicating lamps
c) Series resistor
i. Ohm value Ohm
d) Life of lamp in burning hours hours
15.24 Panel wiring:
a) Material & size of conductor
i. For CT circuits Sq.mm
ii. For other circuits Sq.mm
b) Solid/Stranded conductor
c) Tinned/Untinned
d) Material of insulation & sheath
i. Fire retardant low smoke Yes/No
ii. Oxygen index at 2500C
iii. Acid gas generation %
iv. Smoke generation under fire (in terms of % of light passed) %
e) Voltage grade V
f) Colour coding is provided Yes/No.
g) Numbered ferrules on either side Yes/No
h) Insulated sleeves provided at both ends Yes/No
ii. Current rating A
iii. Clamp/bolt type
iv. Moulded inter-terminal barriers provided Yes/No
v. Maximum conductor size & No. of conductors it can receive Sq.mm
vi. Disconnecting type for CT circuits Yes/No
vii. Terminal marking facility provided Yes/No
viii. Crimp type connectors provided at the terminals Yes/No
ix. 20% spare terminals provided Yes/No
a) Outer sheathing fire retardant Low smoke type Yes/No
ii. Thickness mm
d) Safe pulling force V
e) Overall diameter
f) Voltage grade
ii. Stranded/Solid
iii. Tinned/Untinned
h) Core identification colour/printed numbers
i) Drum lengths
j) The critical oxygen index at 2500C when tested as per ASTM-9 2863-1979
k) Acid gas generation by weight when tested as per IEC-754-1 %
l) Smoke generation as a % of light transmission when tested as per ASTM-D-2843-n %
m) Finished cable passes flammability tested as per IEC-3321 & Swedish Standard SS-424-14-75 Yes/No
n) Vendor agreeable to conduct above tests on all cables supplied to verify the value given in items of j, k, l, m above, in addition to routine tests Yes/No
o) Standard to which the cable conform to
15.26 Space heater rating
a) Power supply V
16.0 SF6 GAS CYLINDER DETAILS:
16.1 Manufacturer of the Cylinder
16.2 Standard to which cylinders conform
16.3 Type of cylinder Seamless
16.4 Manufacturer of SF6 gas
16.5 Standard applicable to SF6 gas
16.6 Water capacity of the cylinder Litres
16.7 Quantity of SF6 gas Kg
16.8 Filling ratio
16.9 Filling pressure at 150C Bars
16.1 Design pressure of cylinder Bars
16.12 Maximum permissible service pressure Bars
16.13 Developed pressure (gauge) at 650C Bars
16.14 Specifications of the valves fitted to cylinders
17 Shipment/Packing details
a) Bidders proposal for packing of various items for shipment
b) Maximum permissible shock that various equipment can withstand during shipment/transportation
c) Impact recorders (accelerometers) will be provided by the supplier as per specification
d) Weight and dimension of the largest shipment package
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR RELAY & PROTECTION PANELS
(Bidder should indicate the guaranteed technical data of all equipments / materials for each type of rating separately)
Relay & Protection Panels
Sl. No. Description
I Description, Construction & formation details :
1 Make and Type reference of manufacturer
i) type of construction.(duplex or simplex)
ii) type of scheme ( numerical type or static type)
b) for power transformer
3 Thickness of sheet steel (mm):
i. Door, Top and Bottom of panel
4 Tentative overall dimensions (L*B *H) (mm) of each panel
5 Dead weight of each panel (Kgs)
6 Approximate weight of each panel with all components (Kgs)
7 Details of packing for transport
8 Overall dimensions of transport package (L*B*H) (mm)
9 Approximate gross weight of transport package (Kgs)
10 Exterior paint film thickness (microns) and paint colour
11 Interior paint film thickness (microns) and paint colour
12 Cubicle Lighting : Volts, wattage, Type of holder and fitting whether provided with door control switch or not.
13 Safety earthing :
a. Material of conductor
b. Size (W*T) (mm)
c. Surface treatment and finish of conductor.
d. Type of end connection
14 Panel front/rear component identity board
c. Size of lettering and colour
d. Method of fixing
15 Panel wiring :
a. Type and material of wire conductors, insulation and voltage grade.
b. Conductor cross sectional area or strands/gauge of wire and colour scheme adopted for :
i. VT secondary circuits and annunciation circuit.
ii. Other Circuits.
c. Type of wire termination
16 Mimic bus details :
a. Type painted / strip fixed
c. Whether colour scheme specified will be followed
d. If not specify deviations.
II. TERMINAL BLOCKS AND CONNECTORS (USED FOR PANEL WIRING)
1 Make and Type reference of manufacturer
2 Insulation and voltage grade
3 Constructional details
4 Current rating of studs, size and material
5 Whether shrouding provided or not
6 Whether space terminals provided or not
7 Literature enclosed.
III. INDICATING LAMPS :
1 Wattage and voltage of lamp
2 Size of lens and material thereof
3 Type of lamp holder
4 Whether provided with series resistor? If yes, specify Ohmic value power loss
IV FUSE HOLDERS AND FUSES :
1 Make and Type reference of manufacturer
2 Insulation and voltage grade
3 Type of Insulation material
4 Type of fuses
5 Rating of fuses provided for different circuits
6 Literature enclosed.
VI. SELECTOR SWITCHES :
1 Make and Type reference of manufacturer
2 Type of handle / Switch
3 Mounting details
4 Number of positions
5 Number of contracts available in each position.
6 Making capacity of contacts
7 Breaking capacity of contacts
8 Whether locking arrangement is available.
9 Whether detailed literature and drawings encolsed. (YES/NO)
VII. PUSH BUTTONS :
1 Make and Type reference of manufacturer
2 Mounting details
3 Type of contact
4 Current and voltage rating
5 No. of contacts
6 Whether shrouding provided to prevent inadvertent operation (YES/NO)
7 Whether provided with integral engraved inscription plates (YES/NO)
VIII AUXILIARY CT's VT'S :
1 Make and Type reference of manufacture
b. Ratios available
d. Standard to which it conforms
e. Accuracy class
f. Short time current / voltage rating
g. Temperature rise
h. One minute power frequency withstand voltage
j. Mounting dimensional details
k. Panel in which to be provided with quantity thereof and connected ratio
3 For CT's only
a. Knee point voltage (KPV) (Volts)
b. Excitation current at KPV and 50% KPV (ma)
c. Internal impedance of primary and secondary windings in ohms
4 Literature enclosed.
IX. SPACE HEATERS :
1 Make and Type reference of manufacture
2 Type of space heater (Tubular / strip type)
3 Rating Wattage
4 Whether thermostat provided (YES/NO)
II INSTRUMENT TEST TERMINAL BLOCKS :
1 Make and Type reference of manufacturer
2 Insulation class and rating
3 Size and mounting details
4 Type of CT terminal shorting mechanism (LINK / SCREW)
5 Type of VT terminal Isolating Mechanism
6 Whether detailed literatures enclosed. (YES/NO)
C GENERAL PROTECTION RELAYS :
I The tenderer shall furnish guaranteed Technical particulars for all types of meters offered, in the following proforma (separate sheet shall be enclosed for each type of relay :)
1 Manufacturer's name or trade marks
2 Type designation
3 Size and mounting details (whether in draw out case)
4 Rated Values of both input and auxiliary energizing quantities
5 Values of the limits of the operative range(s) of the auxiliary energising quantity (ies)
6 Contacts data, Number and rating of main and auxiliary contacts
7 Rated value or setting range of the characteristic quantities and or angle
8 Limiting short-time thermal withstand values
9 Limiting dynamic values.
10 i. Burden data ( in case of poly input relays - data shall be furnished for appropriate set of input terminals).
a. At highest tap - AC current / voltage coil
b. At lowest tap - AC current / voltage (coil)
ii. DC power consumption.
11 Impulse and dielectric test voltage(s)
12 Details of accessories (If essential to the relay performance)
13 Details of accessories (Optional items)
14 Whether provided with seal in trip contacts
15 a. Type of operating characteristics
b. Accuracy of operating characteristics, operating time with details
16 H.F. disturbance test voltage (s)
17 Whether literature enclosed
18 Type of relay flag indicator and rating of target coil
II In addition to the above details, the following details shall also be furnished for relays specified below :
1 DOCR / DEFR :
a. Directional sensitivity
b. Minimum voltage at which the directional units operate
c. Characteristic angle
2 OVER FLUXING RELAY :
a. Whether provided with timer if so time setting available for Alarm and delayed trip.
3 Distance Protection Scheme for 220KV / 110KV / 66KV /33VLines:
A Type of distance measuring element
a. Starting unit
i. Type of scheme
b, No. of measuring element or comparator with details
c. Setting range of the distance measurement
d. No. of zones
i. Overall range for all zones.
ii. Reach setting range at rated current.
Zone - 1 (forward) - ohms
Zone - 2 (forward) - ohms
Zone - 3 (forward) - ohms
Off set zone 3 reverse - ohms
Zone extension (if any)
e. Characteristic of each zone
Phase fault unit
Earth fault unit
Phase fault unit
Earth fault unit
Phase fault unit
Earth fault unit
Zone - 3 off set
Zone -1 in ohms
1. Reach of the relay along with characteristic angle at rated current and voltage
2. Reach of the relay in resistive direction at rated current & voltage
3. Reach in reactive direction at rated current & voltage
Zone - 2 in ohms
1. Reach of the relay along with characteristic angle at rated current and voltage
2. Reach of the relay in resistive direction at rated current & voltage
3. Reach in reactive direction at rated current & voltage
Zone - 3 in ohms
1. Reach of the relay along with characteristic angle at rated current and voltage
2. Reach of the relay in resistive direction at rated current & voltage
3. Reach in reactive direction at rated current & voltage
Zone - 3 in Reverse ohms
1. Reach of the relay along with characteristic angle at rated current and voltage
2. Reach of the relay in resistive direction at rated current & voltage
3. Reach in reactive direction at rated current & voltage
f. Power swing blocking characteristic setting
i. Forward reach
ii. Reverse reach
g. Setting range of residual compensation
h. Setting range of mutual compensation
i. (i) Operating time
(ii) Time setting range
Power swing blocking
Zone - 1 (reach)
Zone - 2 (reach)
Zone - 3 (forward reach)
K. Polarising scheme
B. Additional featues provided :
a. Fault locator
b. Carrier aided tripping scheme
c. Power swing blocking
d. Broken conductor detection
e. Synchronous check
f. Weakend infeed
g. Switch on to fault
h. Fuse failure supervision
C. Facilities available for Fault Locator
a. Name and type reference of manufacturer
b. Rating and setting available
c. Rated V A burden
d. Power consumption voltage and current element
e. Memory capacity with details
f. Triggering method
h. Method of accuracy
D Auto Recloser:
a) Reclosing facilities available b) Single phase/three phase dead time range. c) Reclaim time range d) No. of modes selectable by selection switch e) Provision of Check synchronizing features and its time setting, range phase angle setting, voltage difference setting. f) Provision of deadline charging set range of voltage. g) Lock out facility.
E Disturbance Recorder:
a) No. of event channels b) No. of analog signals. c) Sampling rate d) Recording Band width e) Over current triggering – range. f) Under current triggering – range. g) Over voltage triggering – range. h) Pre fault time – range. i) Post fault time – range. j) Limit time – range. k) No. of recorded disturbances. l) Total recording time with 8 Analog and 16 event channels recorder. m) Voltage channels – details. n) Period of built in calendar. o) Current channels – details,
F EVENT RECORDER
a) Time tagging resolution. b) Events capacity i) Max. NO. of events per disturbance report. ii) Max. No. of disturbance reports
c) Time tagging error with synchronization. i) Once in One second ii) Once in ten seconds. iii) Once in sixty seconds
d) Timer tagging error without synchronization.
4 Restricted Earth fault Relay.
a) Manufacturer Type P designation
b) Operating time 2 x setting
5 Differential protection scheme :
a. No. of restraining coils and operating coils.
b. Harmonic restraints provided with details
c. Rated VA Burden and power consumption of
i. Restraining coil
ii. Operating coil
d. Type of slope setting :
If variable, range of slope setting through fault current stability. Maximum & minimum range of HV / MV / LV current ratio over which the relay can be used.
e. Whether provided with switching inrush current restraint, if so type.
6 Trip circuit supervision relay:
a) Name of manufacturer.
b) Type & Designation.
c) Whether preclosing & post closing supervision provided.
7 High speed trip relay
a) Name of manufacturer.
b) Type & Designation.
c) Contact rating.
Current rating-
i) Continuous rating
ii) Rating for 5 secs.
d) Break Resistive load inductive load (with L/R = 40 msec.
e) Operating time at rated voltage (max).
f) Resetting time.
g) Whether supervisory relay included.
8 Local breaker back up protection.
a) Name of manufacturer.
b) Type & Designation.
c) Operating time
d) Resetting time
e) Setting range
9 Bus bar protection
a) Name of manufacturer.
b) Type & Designation.
c) Type of relay (numerical)
d) Principle of operation (biased/low impedance)
e) Operating time
f) Resetting time
g) Setting range.
h) Whether will it cause tripping for the differential current below the load current of heavily loaded feeder (Bidder shall submit application check for the same).
III The tenderer shall confirm whether the following details will be furnished at the time of approval of drawings:
a. Identification and location of removable parts.
b. Data of permit suitable connection of the relay (including the polarity)
c. Data concerning the earthing of metallic part
d. To indicate parts of modules which should not be replaced without observing precaution prescribed by the manufacturer.
GUARANTEED TECHNICAL PARTICULARS FOR ELECTRONIC TRIVECTOR METERS
Sl. No. PARTICULARS
1 Type of Meter
2 Class of Accuracy
3 Standard to which the meter conforms
4 Current rating for which accuracy is guaranteed for
a. Basic Current (ib)
b. Continuous Current overloading capability
c. Short time over current
d. Minimum Starting Current
5 a)Voltage rating for which accuracy is guaranteed for
b)Over voltage withstand capacity - continuous
c)Voltage Range
6 Other Parameters for which accuracy is guaranteed
a. Reference Temperature
b. Standard Reference Frequency (Hz)
c. Accuracy Guaranteed for
d. Frequency Range
e, For single Phase Loads / In- put
f. For two Phase Loads / In - put
g. For In-put / Loads without neutral in -puts unbalanced Voltages
h. Temperature Range
7 Insulation Resistance
8 Sampling Plan for measurement of Voltage, Current and Frequency
9 Power Loss in each Current circuit at Basic Current in VA & WATT
10 Power Loss in each Voltage circuit at reference in VA & WATT
11 Display device (Hardware details)
a. Type of Display i.e. LCD
b. Character size of display digits
c. No. of Display digits used
2. For parameter identification
d. Life of display unit (Guaranteed)
e. Method adopted for digit over flow
12 Display details (Software)
13 a. Non-volatile memory retention time in absence of power
b. Non - volatile memory capacity in KB.
c. RAM Capacity
d. Maximum number of Parameters which can be stored in non-volatile Memory at each half an hour intervals for Six Months.
14 Maximum demand
a. Parameters that can be dynamically selected
b. Integration Period Range
c. Provision for Automatic Rest
d. Type of MD Computation
15 Communication Inter-phase available
- for calibration
- for data transfer
16 Electro magnetic interference / Electro magnetic comparativity level
17 Mounting arrangement
18 Meter sealing arrangement
b. Meter terminal block
c. MD reset bush button
d. Battery unit
19 Degree of protection against moisture etc.,
20 a. Provision for real time clock
b. Real time clock accuracy
c. Life of real time clock (Guaranteed)
21 Power Supply backup
22 Measuring principle employed for
d. Maximum demand parameters
NOTE 1. Measuring principle adopted for each of the items above should be specified.
2. Measurement logic employed in case of Harmonics and contents up to which meter recognizes for measurement shall be furnished.
23 Abnormal conditions that will be identified with limiting values
24 Guarantee period offered for
a. Performance and accuracy
b. Components not covered under guarantee
25 Micro processor
a. Address in bits
b. Sampling rate
26 Compatibility of the software for the following
a. For generation of consumer bill directly with the existing CESC billing software
b. Compatibility of software provided for MRI, down loading from earlier version already supplied to CESC
c. Compatibility of software for generation of report for earlier versions
27 Additional features available
28 Agreement to furnish protocol details for development of required software through third party
29 Platform on which the meter communicates
30 Levels of security
a. For changing real time
b. Fir changing display parameters
c. For changing Load survey parameters
d. For changing TOD Registers, clock setting
e. Measuring principle, computation
31 Specification of reference standard offered
32 Specification of Laptop Computer offered
33 Specification of MRI kit offered
34 Specification of equipment offered for checking communication capability through RS232/RS485 port
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS OF SUB-STATION AUTOMATION
Sl.No. Particulars
A SUBSTATION AUTOMATION SYSTEM MASTER CONTROL UNIT OF HMI
a) Name and Country of Manufacture.
b) Manufactures type and designation
c) Memory capacity
Operating system software type
d) Type of drives provided
i) 3.5” Floppy & MG drive.
ii) Magnetic optical drive (rewritable)
e) Update time of
i) digital input
ii) Analog Input
f) Response time for
i) Alarm Function
ii) Control Function
g) Response time for
i) Alarm function
ii) Control function
h) Whether semi of fully colour graphic type
i) Total number of bay units which can be connected without effecting the response/update time of the system
j) Whether facility and hardware for transfer of data to remote sub-station motorized.
k) Communication protocol adopted for
l) Applicable standard
m) Type of auxiliary supply required
n) Speed of data processing in instruction per sec.
o) List of manufacture whose bay units can be connected to master unit without additional.
p) Whether equipment offered is of industrial grade
q) All necessary software provided for proper functioning of the system as a whole.
r) List of all software provided
s) Max. Possible distance return bay unit & master.
v) Power Consumption
ab) Processor speed
ad) Cache Memory
ae) Communication Port
B BAY CONTROL UNIT
a) Name of Country of Manufacture
b) Manufacturers type and designation
c) Type of Mounting
d) No. of bay control units offered
e) Memory capacity
f) Data Storage capacity
g) Standard applicable
h) Rated auxiliary voltage
i) Rated frequency
j) No. of binary inputs
k) No. of outputs
m) Type of Communication protocol
n) No. & type of communication port
o) Operation temperature range
p) System response time
q) (i) Exchange of display
ii) Presentation of binary change
iii) Presentation of analog change
iv) Order to process output
v) Order to update display
vi) Report generation
vii) Max. temperature
r) Whether data is received on failure of unit. If yes, indicate the duration
s) Speed of transmission between bay and Master control unit
t) No. of inputs it can accommodate (specify voltage & current separately)
u) Resolution for digital inputs
v) Update time of
a) analog inputs
b) digital inputs
w) Whether data processing is done in bay unit or master control unit.
x) Power concentration
i) Name & county of Manufacture
ii) Manufactures type & designation
iii) Whether standard or the numerical keyboard included in the programming terminal.
D) Local Area Network LAN
3) Communication Medium
5) Maximum distance
E) Network Operating system
F) SCADA Software
2) Operating system
3) Facilities Provided (Full details to be enclosed in separate sheet)
1) Colour Printer
2) Manufacturer name
3) Country of Manufacture
5) A3 and A4 size paper supplied
6) Throughput rate
8) Available data interface
9) Print colour
10) Max. Temperature
11) Max. Humidity.
G(b) Alarm/Event Printer
1) Manufacturer name
2) Country of Manufacture
5) Paper Loading Facility
9) Available Data Interface
10) Print Colour
11) Max. temperature
12) Max. Humidity (Rh.)
1) Manufacturer name
2) Country of Manufacture
6) Available Data interface
H Following information is attached separately with the bid
a) Type, Make and Model No. for each item/sub-item with relevant catalogues / descriptive information Yes/No
b) List of installation of similar Equipment now in service with contact Yes/No
Persons name and address Yes/No
Detailed drawing with dimensions of each equipment panel and interfaces Yes/No
Full functional description specific to project along with proposed Architecture/scheme enclosed Yes/No
I SYSTEM SOFTWARE
1) Multitasking operating system
2) Background executive
3) File handling utility
4) Magnetic tape/disk data transfer utility
5) Online debugger
6) Object Module library utility
7) Report generator utility for display & Print
8) Communication utility
9) Graphic display generation utility
10) Online system backup capability
11) Test and Maintenance Programs (Diagnostic software)
12) System generation at site
13) Data base utility
14) Data acquisition, processing and alarm monitoring/reporting
15) Communication
16) Operator interface (MMI)
17) Network Operating system
18) Utilities like debugging and software downloading
19) Mathematical and logic function
II PROCESS SOFTWARE
1) Plant data base
2) Control software
3) Graphic display with points assignment
4) Logs or reports with points assignment
5) Software for communication with external computer system
6) Relay setting software
7) Any other software.
Note: Bidder shall supplement information in this Data Sheet with a write up on each topic
Processing capacity
Programmable real time clock Yes/No.
Watch dog timer Yes/No
Auto Restart Yes/No
Time synchronization Yes/No
PROCESS INPUT SYSTEM
No. of high resolution inputs
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEEED TECHNICAL PARTICULARS FOR LATTICE TYPE MOUNTING STRUCTURES
(Bidder should indicate the guaranteed technical data of all equipments / materials for each type of rating separately)
Mounting Structures
1 Standars adopted
i. Properties of section
ii. Bolts & Nuts
iii. Galvanising
2 Minimum Sheared edge distance (mm)
3 Minimum Rolled edge distance (mm)
4 Quality of Zinc used for galvanising
5 Maximum percentage increase in structure weight due for galvanisation
6 Quantity of Zinc required for galvanisation per MT of structurals
7 Size of bolts and nuts (including foundation bolts & nuts for support structure)
iii. Foundation Bolts
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
ISOLATORS AND TERMINAL CONNECTORS
(Bidder to indicate technical data for each type of rating separately)
Isolators and Terminal connectors ratings 33kV 33kV 33kV 33kV 11KV
a. Name of the Manufacturer
b. Country of Manufacture
c. Manufacturer's type designation
d. Standard applicable for isolators and earthing switches
e. Rated Voltage Ur (kV)
f. Rated Current Under site conditions (A) at 50oC ambient
g. Rated frequency (Hz)
h. Number of poles
i. Whether all 3 poles are ganged mechanically
j. Pole to pole spacing
k. Type of installation
2 Guaranteed Ratings
a. Rated short time current of isolator for Is (kA) and dynamic current (kAp)
b. Opening time of isolator and earth switch (s)
c. Closing time of isolator and earth switch (s)
d. Temperature rise over 50oC ambient temperature corresponding to maximum continuous current (oC)
3 Dielectric withstand capacity of completely assembled isolator/isolator and earth switch
a. One minute dry power freq. Withstand test voltage (kV ms)
i. Against ground (kV rms)
ii. Across isolating distance (kV rms)
b. 1.2/50 micros a impulse withstand test voltage
i. Against ground (kVp)
ii. Across isolating distance (k Vp)
c. 250/2500 micros switching surge withstand test voltage (dry & wet)
i. Against ground (kVp)
ii. Across isolating distance (kVp)
d. Corona extinction voltage (k V rms)
e. Radio interference level at 1.1 Ur/ /3 (in micro volts) at 1.0 MHz
f. Total creepage distance to ground (mm)
4 Operating Mechanism
A. For Main Blades
a. Type of motor operating / manually driven mechanism
b. Manufacturer's Type / designation
c. Rated torque of the mechanism
d. Type and rating of motor
B. For Earth Switches
a. Type of motor operating / manually driven mechanism
b. Manufacturer's type designation
c. Rate troque of the mechanism
d. Type and rating of motor
4.1 Interlocks:
a. Whether mechanical/constructional interlock between isolator and earth switch provided.
b. Details of electrical interlock enclosed for
ii. Earth Switch
c. Arrangement provided to prevent electrical or manual operation unless interlock conditions are satisfied whether interlock coil is continuously rated
d. Rated DC control voltage and variation allowed
e. Power consumption (W)
a. Rated DC control voltage (V)
b. Limits of voltage
c. Power consumption of control coils (W)
5 Constructional Features
a. Minimum clearance in air
i. Between phases (mm)
ii. Between live parts to earth (mm)
iii. Distance between terminals of same phase (mm)
b. Whether position of earth switch can be interchanged at site to either side of pole
c. Minimum clearance between live part and earth switch blade throughout the entire operational are of earth switch (mm)
d. Terminal pad details
i. Diameter & length
ii. Material of pad
e. Insulator data
iii. No. of insulator stacks / phase
iv. No. of insulators/stack
f. Main Contracts
i. Type of contacts
ii. Contract area (cm2)
iii. Material of contacts
iv. Contact pressure (kg / cm2)
v. Maximum current density under normal current carrying capacity (A/cm2)
vi. Thickness of silver plating
g. Number of auxiliary contacts on isolator/pole for owner's use
h. Number of auxiliary contacts on earth switch pole for Owner's use
i. Auxiliary contacts
i. Rated voltage (V)
ii. Rated Continuous current (A)
iii. Rated Dc breaking current with 20 ms time constant (A)
j. Mounting dimenstions of isolators
i. Distance between supports
ii. Top dimensions of support
k. Height from mounting plane to top of terminal stud
l. Whether cable glands required included in the scope for inter pole cabling to be done by the Owner.
Whether the following are enclosed :
a. Type test reports as per IEC 129
b. OGA drawings for isolator with & without earth switches
c. Operation manual for isolators
d. Details of motor operating / manually driven mechanism
e. Recommended drawing for mounting details for isolator and drives.
f. Leaflets & literature bringing out salient features of equipment offered.
g. Details of constructional interlock
CONTROL CABINETS
1 Manufacturer's Name
2 Indoor / Outdoor application
3 Design ambient air temperature (oC)
4 Standards applicable
5 Thickness of sheet steel (mm) and whether cold rolled or hot rolled
6 Degree of protection provided
7 Bill of material for all the equipment mounted on control cabinet giving the following details :
a. Make and Type
b. Applicable Standard
c. Voltage rating
d. Current rating
e. Duty class, if applicable
f. Manufacturer's catalogue No.
g. Total heat load of cabinet (for purpose of ventilation requirement)
8 Colour of finish paint IS : 5
9 Control Wiring
a. Size of conductor
i. For CT circuits
ii. For other circuits
b. Conductor Solid / Stranded
c. Number of Stranded/conductor
10 Terminal Blocks
b. Current rating
i. Power terminals (A)
ii. Other terminals (A)
11 Space Heater Rating at 240 V DC
12 Control cabinet drawing showing the following
a. Outline dimensions, floor opening, floor/wall/pedestal fixing arrangements weights etc.,
c. Front view, inside view showing the mounting arrangement of various equipment
13 Schematic / wiring diagram of control cabinet enclosed
14 Interconnection drawing showing Owner's external cable, connections to the control cabinet enclosed Isolators & Terminal Connectors
15 Type test report to verify degree of protection enclosed.
16 Details of terminal rows
i. Whether arranged vertical or horizontal
ii. Clearance from adjacent components
iii. Distance between rows
iv. Whether transparent protection cover provided.
16 TERMINAL CLAMPS AND CONNECTORS
1. Manufacturer's Name
2. Applicable Standards
4. Material of connector
b. Bolts & Nuts
c. Spring washers
5. Rated Current
6. a. Rated terminal load (kg)
b. Factor of safety
7. Minimum thickness of any part (mm)
8. Weight of clamp complete with hardware (kg)
9. Type test reports as per IS enclosed.
10. OGA drawing enclosed
BUSHING / SUPPORT INSULATOR
1 Manufacturer's Name
2 Type test report to verify degree of protection enclosed.
3 Applicable Standards
i. Diameter (Top)
ii. Diameter (Bottom)
5 Total Creepage distance (mm)
6 Rated voltage (kV)
7 Power frequency withstand voltage for 1 min. (k V rms) dry and wet
8 1.2/50 micro sec. Impulse withstand voltage (kVp)
9 250/2500 micro sec. Switching impulse withstand voltage (kVp) dry and wet
10 Corona Extinction voltage (k V)
12 Max. allowable span (mm)
13 Cantilever Strengthh (kg)
14 OGA drawing enclosed
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR RIGID BUS & ACCESSORIES
(Bidder should indicate the guarantteed technical data of all equipments/materials for each type of rating separately)
1.00 Tubular Bus Conductor
1.01 manufacturers Name and address
1.01 Applicable Standards
1.03 Size of tubular Bus Conductor (mm)
a Standard pipe size (IPS)(mm)
b Outside diameter (mm)
c Tolerance on outside diameter
d Thickness (mm)
e Tolerance on Thickness
1.04 Moment of Interia (mm4)
1.05 Section Mudulus (mm3)
1.06 Radius of gyration (mm)
1.07 Natural frequency of vibration for the Site condition (c/s)
1.08 Reactance per phase for configuration at site (ohms)
1.09 Conducivity of IACS (%)
1.10 DC Resistance of 2033
1.11 Constant mass temperature co-efficient of resistance
1.12 Weight (Kg/m)
1.13 Current rating at site conditions (Amps)
1.14 Tubular bus conductor temperature Due short circuit (oC)
1.15 Final allowable tabular bus conductor Temperature due to short circuit (oC)
1.16 Short circuit current rating for 1 sec. duraion (kA)
1.17 Critical disruptive (Corona) voltage (Line o Neutral) KV)
1.18 Ratio inerference at rated voltage (micro volts m)
1.19 Yield srength at tensile stress of 1335 Kg/cm2 for aluminium tubular bus conductor (Kg)
1.20 Minimum braking strength at tensile stress of 1545 Kg/cm2 for aluminium tabular bus conductor (kg)
1.21 Deflection on tabular bus conductor for 13 span (mm)
1.22 Maximum transport length of tabular bus conductor (Meter)
1.23 Data Applicable to Bells
b Type of fiting (Internal/external)
2.00 Clamps and Connections 220KV 110KV 66KV 33KV
2.01 Manufacturers Name and address
2.02 Applicable standards
2.03 Application
2.04 Type of fiting (Internal/external)
2.05 For connection to
a Conductor size and arrangement
b Equipment terminal and arrangement
2.06 Material (state percentage composiion of consiuents and impurities present)
b Bolts and Nuts
c Spring washers
d Liners, if any
2.07 Rated current (A)
2.08 Maximum temperature rise over reference ambient temperature when carrying rated current (oC)
2.09 Rated terminal load and factor of safey (Kg)
2.10 Minimum thickness of any part (mm)
2.11 Weight of clamp complete with hardware (Kg)
2.12 Machine accuracy for matting surface
2.13 Service (Indoor/Outdoor)
3.00 Marshalling Kiosk 220kV 110kV 66kV 33kV
3.01 Manufacturers Name and address
3.02 Indoor/Outdoor application
3.03 Design ambient air temperature
3.04 Thickness of sheet steel (mm)
3.05 Degree of protection provided
3.06 Bill of material for all equipment mounted in marshalling Kiosks giving following details:
b Applicable Standards
c Voltage rating
d Current rating
e Duty class if applicable
f Manufacturers catalogue No.
g Total heat load of Kiosk (for purpose of ventilation requirement)
3.07 Colour of finish paint (as per IS:5)
3.08 Busbars 220kV 110kV 66kV 33kV
b Temperature rise at rated current over specified ambient temperature (o C)
c Continuous current rating (A)
d Short circuit current rating for one sec. (KA)
3.09 Control wiring
a Size of conductor (mm2)
i. For CT circuits
ii. For other circuits
b Conductor (solid/stranded)
3.10 Space Heater Rating at 240 V Ac
3.11 Marshalling Kiosk drawing enclosed showing the following:
a Outline dimensions floor opening Floor/wall pedestal fixing arrangements, weight etc. (YES/NO)
b Front view and inside view showing the mounting arrangments of various equipments. (YES/NO)
3.12 Schematic wiring diagram of marshalling kiosk enclosed (YES/NO)
3.13 Interconnecion drawing showing Employer's external cable connection to the marshalling Kiosk enclosed. (YES/NO)
3.14 Type test report to degree of protection enclosed.
3.15 Terminal blocks
a Make and type
b Current rating
i Power Terminal (A)
ii Outer Terminal (A)
GUARANTEED TECHNICAL PARTICULARS OF CLAMPS AND CORONA BELLS ASSOCIATED WITH ALUMINIUM PIPE:
2 Type of clamps, purpose and size of the pipe
3 Type of corona bell (internal fitting or external fitting)
4 Standards applicable
5 Material (state percentage composition)
ii Bolts and Nuts
iii Spring washers
6 Current rating (amps)
7 Maximum thickness of any part (mm)
8 Minimum thickness of any part (mm)
9 Size of bolts used in each case
11 List of type tests enclosed
12 Year in which type test conducted
13 List of routine tests conducted
14 List of drawings enclosed
Note: Pariculars in respect of different clamps may be furnished separately or in tubular columns in the annexure.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR CURRENT TRANSFORMERS
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Voltage Class and ratio of CT
Sl.No. PARTICULARS
1 Name of the manufacturer
2 Country of origin
3 Standard Governing specification
5 Manufacturer's type designation
6 a. Nominal system voltage KV
b. Highest system voltage KV
7 a, Rated primary current
b. Rated secondary current Amp
c. Rated transformation ratio Amp
8 Rated Secondary terminal Voltage at
i. Rated Current
ii. 10 Times the rated current
iii. 20 Times the rated current
9 Ratio of current Transformer
10 Number of Cores
11 Details of Core
i. Rated Burden
ii. Accuracy Class
iii. Accuracy limit factor
iv. Instrument Security factor
v. Knee point voltage at
vi. Secondary winding
resistance (Ret. In Ohms)
vii. Magnetising current at Vk/4
i. Rated Burden
ii. Accuracy Class
iii. Accuracy limit factor
iv. Instrument Security factor
v. Knee point voltage at
vi. Secondary winding
resistance (Ret. In Ohms)
vii. Magnetising current at Vk/4
i. Rated Burden
ii. Accuracy Class
iii. Accuracy limit factor
iv. Instrument Security factor
v. Knee point voltage at
vi. Secondary winding
resistance (Ret. In Ohms)
vii. Magnetising current at Vk/4
i. Rated Burden
ii. Accuracy Class
iii. Accuracy limit factor
iv. Instrument Security factor
v. Knee point voltage at
vi. Secondary winding
resistance (Ret. In Ohms)
vii. Magnetising current at Vk/4
i. Rated Burden
ii. Accuracy Class
iii. Accuracy limit factor
iv. Instrument Security factor
v. Knee point voltage at
vi. Secondary winding
resistance (Ret. In Ohms)
vii. Magnetising current at Vk/4
12 Current error at rated primary current
13 Phase displacement at rated primary current
14 Composite error at rated accuracy limit primary current in %
15 Rated short time current and duration
a. Thermal ( I th) KA (rms) for 1 sec KA
b. Dynamic (I dyn) (peak)
16 Temperature rise of the windings (by resistance method) over an ambient temperature of 45oC
a)At rated current Deg C
b)At 100% overload for 5 minutes Deg C
17 Partial discharge level
18 Particulars of windings
a. Primary winding :
ii. No.of turns
iii.Current density at rated current Amp / Sq.mm
iv. Size of conductor
v. class of insulation
b. Secondary winding
ii. No. of turns
iii.Current density at rated current Amp / Sq.mm
iv. Size of conductor
v. Class of insulation
vi. Resistance computed to 75 deg C Ohm
vii. Insulating material used
c. Rated insulation levels :
i. One minute power withstand voltage KV (rms)
ii. Intersection withstand voltage of primary windings KV (rms)
iii. Impulse withstand voltage KV (rms)
19 Particulars of core :
ii. Flux density :
a. At rated primary current Tesla
b. At 15 times rated primary current Tesla
iii. Thickness of steel lamination mm
iv. Whether CRGO steel stampings are used?
v. Watt loss/Kg. of steel
vi. Knee point e.m.f
20 Particulars of porcelain housing / bushing
i. Specification to which it confirms
ii. Name of manufacturer
iii. Power frequency withstand voltage for one minute
a. Dry KV (rms)
b. Wet KV (rms)
iv. Dry lightning impulse withstand voltage 1.2/50 micro sec. Wave shape KV (rms)
v. Visible power frequency discharge voltage KV (rms)
vi. Creepage distance in air
a. Protected mm
vii. Weight of porcelain housing / bushing kgs
21 Overall dimensions :
i. Total weight of copper used
a. Primary winding kg
b. Secondary winding kg
ii. Weight of core kg
iii. a. Quantity of insulating oil liters
b. Weight of insulating oil kgs
iv. Total weight kgs
23 Particulars of terminal connector
i. Name of the manufacturer
ii. Rated current Amps
iii. Temperature rise above an ambient of 45 deg.c
a. At rated current Deg C
b. At 150% of rated current for 15 min Deg C
CONTROL CABINET :
1 Manufacturer's Name
3 Design ambient air temperature (oC)
4 Standards applicable
5 Thickness of sheet steel (mm) and whether cold rolled or hot rolled
6 Degree of protection provided
7 Bill of material for all the equipment mounted on control cabinet giving the following details
b. Applicable Standard
c. Voltage rating
d. Current rating
e. Duty class, if catalogue No.
f. Manufacturer's catalogue No.
g. Total heat load of cabinet (For purpose of ventilation requirement)
8 Colour of finish paint IS : 5
9 Control Wiring
a. Size Conductor
i. For CT circuits
ii. For other circuits
b. Conductor Solid Stranded
c. Number of Strands / conductor
10 Terminal Blocks
b. Current terminals (A)
i. Power terminals (A)
ii. Other terminals (A)
11 Space Heater Rating at 240 VAC
12 Control cabinet drawing showing the following
a. Outline dimensions, floor openings, Floor/wall/pedestal fixing arrangements, Weights etc.
b. Front view, inside view showing the Mounting arrangement of various Equipment.
13 Schematic / wring diagram of control Cabinet enclosed
14 Interconnection drawing showing cable, Connections to the control cabinet enclosed.
15 Type test report to verify degree of Protection enclosed
16 Details of terminal rows
i. Whether arranged vertical or horizontal
ii. Clearance from adjacent components
iii. Distance between rows
iv. Whether transparent protection cover provided
SUPPORT INSULATOR
1 Manufacturer's Name
3 Applicable Standards
ii. Diameter (Top)
iii. Diameter (Bottom)
5 Total creepage distance (mm)
6 Rated voltage (KV)
7 Power frequency withstand voltage for 1 min (KV rms) dry and wet
8 1.2/50 micro sec. Impulse withstand voltage (KVP)
9 250/2500 micro sec. Switching impulse
10 Corona Extinction voltage (KV)
12 Max. allowable span (mm)
13 Cantilever Strength (Kg)
14 OGA drawing enclosed
TERMINAL CLAMPS AND CONNECTORS
1 Manufacturer's Name
2 Applicable Standards
4 Material of connector
b. Bolts & Nuts
c. Spring washers
5 Rated Current
6 a. Rated terminal load (Kg)
b. Factor of safety
7 Minimum thickness of any part (mm)
8 Weight clamp complete with hardware (Kg)
9 Type test report as per IS enclosed
10 OGA drawing enclosed
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR ACSR CONDUCTOR
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Sl. No. Bidders Name
Description Unit
1 Name & Address of manufacturer
2 PARTICULARS OF RAW MATERIALS
a Minimum Purity of aluminium %
b Maximum Copper content %
2.2 Steel Wires/Rods
c Phosphorous %
a Minimum Purity of zinc %
3 STEEL STRANDS
b Maximum Copper content mm
3.2 Minimum Braking load of strand KN
3.3 Maximum Resistance of 1m length of strand at 20 deg C Ohm
4 STEEL STRANDS AFTER STRADING
4.2 Minimum Braking load of strand KN
4.3 Galvanising
a Minimum weight of zinc coaing per sqm. Of uncoated wire surface Gm
b Minimum number of one minute dips that the galvanised strand can withstand in the standard preece test Nos.
c Min.No. of twists in a guage length equal to 100 times dia of wire which the strand can withstand in the torsion test. Nos.
5 ACSR Conductor
5.1 UTS of conductor KN
5.2 Lay ratio of conductor
a Outer steel layer
b 12 wire aluminium layer
c 18 wire aluminium layer
d 24 wire aluminium layer
5.3 DC resistance of conducor at 20 deg. C Ohm/km
5.4 Minimum Corona Extincion Voltage (line to ground)
5.5 RIV at 1MHz
a a 305KV (rms) under dry conditions microvolts
5.6 Standard length of conductor in one drum M
5.7 Direction of lay for outside layer NA
5.8 Linear mass of the conductor
a Standard Kg/km
b Minimum Kg/km
c Maximum Kg/km
6 Drum is as per specificaion Yes/No
7 No. of cold pressure butt welding equipments available at works Nos.
1 Name & Address of manufacturer
2 PARTICULARS OF RAW MATERIALS
2.1 Steel Wires/Rods
c Phosphorous %
a Minimum Purity of zinc %
3 STEEL STRANDS
3.2 Minimum Braking load of strand KN
3.3 Galvanising
a Minimum weight of zinc coating per sqm. Of uncoated wire surface Gm
b Minimum number of one minute dips that the galvanised strand can withstand in the standard preece test Nos.
c Min. no. of twists in a guage length equal to 100 times dia of wire which the strand can withstand in the torsion test. Nos.
4.0 STRANDED EARTHWIRE
4.1 UTS of conductor KN
4.2 Lay length of outer seel layer
4.3 DC resistance of conducor at 20 deg. C Ohm/km
4.4 Standard length of conductor in the drum Mtrs
4.5 Direction of lay for outer layer NA
4.6 Linear mass of earth wirer
c Minimum Kg/km
5.0 Drum is as per specificaion Yes/No
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GAURANTEED TECHNICAL PARTICULARS FOR VOLTAGE TRANSFORMERS
(Bidder should indicate the guaranteed technical data of all equipments / materials for each type of rating separately)
Class of Voltage Transformers 110KV 66KV 33KV
2 Manufacturer's type and designation
3 Rated primary voltage
4 No.of secondary winding
5 Rated secondary voltage
i. Winding No.I
ii. Winding No. II
iii. Winding No. III
i. Winding No.I
ii. Winding No.II
iii. Winding No.III
7 Accuracy Class
i. Winding No.I
ii. Winding No. II
iii. Winding No.III
8 Maximum ratio error with rated burden and 9% normal primary voltage for secondary winding.
9 Maximum phase angle error with rated burden and 5% normal primary voltage for secondary winding
10 Grade of oil
11 Temperature rise at 1.2 times rated voltage with rated burden
12 Rated voltage factor and time
13 Temperature rise for
14 One min. power frequency withstand test (dry) voltage
15 One min. power frequency withstand test (wet) voltage.
16 1.2 /50 micro sec. Impulse wave withstand test voltage
17 One min. power frequency withstand voltage on accessories.
18 Weight of oil
19 Total weight
20 Overall dimensions
21 Mounting details
22 Surface treatment
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR POST INSULATORS AND DISC INSULATORS
(Bidder should indicate the guaranteed echnical data of all equipments/mzaterials for each type of rating separately)
Post Insulators & Disc String Insulators
1.00 POST INSULATORS 245KV 123KV 72.5KV 36KV
1.01 Manufacurer's name and Address
1.02 Type of Insulators Units
1.03 Applicable Standard
1.04 No. of Units per Sack
1.05 Whether corona ring provided or not (Yes/No)
1.06 Diameter (mm)
1.07 Bolt circle diameter (mm)
1.08 Spacing bewteen two units (mm)
1.09 Creepage Distance
b Protected (mm)
1.10 Power frequency wihstand volage of insulator
i. Dry (KV rms)
ii. Wet (KV rms)
b One complete stack
i. Dry (KV rms)
ii. Wet (KV rms)
1.11 1.2/50 micro sec.impulses withstand voltage
b Complete stack
1.12 Visual discharge volage for falling power frequency voltage for complete stack
1.13 Radio interference voltage of compete stack
i Test Voltage(KV rms)
ii Radio interference voltage (micro volt)
1.14 Weight of complete stack (Kg)
1.15 Cantilever Strength
ii Underhung (Kg)
b Complete stack
ii Underhung (Kg)
1.16 Tensile Strength (Kg)
1.17 Torsional Strength (Kg.m)
1.18 Compression Strength (Kg)
1.19 250/2500 micro second switching surge withstand voltage
i Dry (KV Peack)
ii Wet (KV Peack)
b Complete stack
i Dry (KV Peack)
ii Wet (KV Peack)
1.20 Whether shed profile of insulaor is conforming to IEC-815? (Yes/No)
1.21 Whether calculation characterising shed profile as per IEC-815 are enclosed with bid? (Yes/No)
1.22 Wheher offered BPI is alternate shed type?
1.00 INSULATOR STRINGS 220KV 110KV 66KV 33KV
1.01 Manufacturer's Name
1.02 Type of string
a Single/Double
b Suspension/Tension
1.03 Applicable standards
1.04 Type of Insulators
a Ball & socket/oher
b Whether fog type
1.05 Insulating Material
1.06 No. of unis per string
1.07 Size of each unit
a Diameter of disc (mm)
b Spacing between adjacent units (mm)
a Each disc (Kg)
b Complete String (mm)
1.09 Creepage Distance
a Each disc (mm)
b Complete String (mm)
1.10 power frequency withstand voltage of the complete string with corona control ring
1.11 Lightening impulse withstand voltage of the complete string for both positive and negative
1.12 Switching surge withstand voltage of the complete string with corona ring.
1.13 Power frequency puncture withstand voltage of each Disc (KV rms)
1.14 Electro Mechanical strength (KG) of each disc.
1.15 Minimum corona extinction voltage level of the complete string with corona ring (Dry condition)
1.16 RIV level of the complete string with corona control ring shall be below 1000 micro at 1 MHz when subjected to a test voltage indicated against clause 1.15 above. (Dry condition)
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR INSULATOR HARDWARE AND CLAMPS
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
220KV 110KV 66KV 33KV
1.00 Insulator hardware
1.01 Manufacturer's Name and address
1.02 Applicable Standards
b Nuts bolts and washers
e Strain and suspension/drop clamp (kg)
1.04 Ultimate Strength
a Complete assembly (kg)
b Suspension /drop clamp (kg)
c Strain clamp (kg)
d D-shackle (kg)
e Ball eye (kg)
f Ball clevis (kg)
g Clevis eye (kg)
h Socket eye (kg)
I Socket clevis (kg)
j Yoke Plate (kg)
1.05 Magnetic power loss at
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR SURGE ARRESTORS
(Bidder should indicate the guaranteed technical data of all equipments / materials for each type of rating separately)
Surge Arrestors 60KV 30KV 10KV
SURGE ARRESTORS
a. Manufacturer's Name
b. Manufacturer's type / designation
c. Applicable standards
ELECTRICAL CHARACTERISTICS
2 A. Arrester class and Type
b. Rated arrester voltage (kV)
c. Maximum continuous operating voltage (COV) at design ambient temeprature
d. Nominal discharge current (8/20 micro sec. Wave) (kA)
e. i. Minimum discharge capacity (kJ/kV) referred to rated voltage of minimum of discharge characteristics
ii. Line discharge class, as per IEC
f. Maximum equivalent front of waver protection level (discharge voltage with 0.5 * 1.5 micro sec, 10 kA impulse current).
g. i. Minimum switching surge residual voltage at 1 kA (kV p)
ii. Maximum switching surge residual voltage at 1 kA(kVp)
h. Maximum residual voltage for 8/20 micro sec. Current wave
i. At 50% nominal discharge current (kVp)
ii. At 100% nominal discharge current (kVp)
iii. At 200% nominal discharge current (kVp)
i. One minute power frequency (dry) withstand Voltage of arrester (k Vrms)
j. Impulse withstand test voltage of arrester housing with 1.2/50 micro sec. Wave (kVp)
k. Impulse current withstand
i. High current short duration (4/10 micro sec. Wave) kAp
ii. Low current long durationn (A peak)
l. Maximum internal ionisation at 50 Hz voltage equal to
m. Reference voltage and corresponding reference current of arrester.
n. Maximum internal leakage current at (mA).
iii. COV at 150oC
iv. Reference voltage
o. Pressure relief class
p. Are the protection levels affected by pollution of external insulation
q. Energy absorption capacity in kJ per operation of the arrester, during a switching surge discharge.
r. Maximum amount of energy that may be dispatched into the arrester during discharge into the arrester during discharge assuming that discharge takes place within 1 min period and state the switching surge current.
s. Internal pressure required to operate pressure relief device as a percentage of burst pressure of porcelain
t. Dynamic over voltage withstand kVp
ii. For 0.01 sec.
iii. For 0.1 sec.
u. Minimum prospective symmetrical fault current (kA rms)
v. Rejection rate of ZnO blocks during manufacturing and operation for the past three years (%) seperately
w. Rated voltage of ZnO disc (kV)
i. No. of ZnO discs in a unit
ii. No. of units/arrester
iii. Height / Thickness of ZnO discs 9(mm)
iv. Diameter of ZnO disc. (mm)
3 EXTERNAL INSULATION
b. Applicable standard
c. Impulse voltage withstand test voltage of housing with 1.2 / 50 micro sec wave (kVp)
d. One minute power frequency withstand voltage of arester housing dry and wet (kv rms)
e. Total creepage distance of arrester housing (mm)
f. Cantilever strength of complete arrester (kg)
4 OVERALL DIMENSIONS
A. Overall dimensions
i. Overall Height (mm)
ii. Height upto top of terminal pad from mounting plane
iii. Material of terminal pad
iv. Size of terminal pad
v. Mounting dimensions and diameter of mounting holes
vi. Diameter of insulator
b. Total weight of complete arrester (kg)
TERMINAL CLAMPS AND CONNECTIONS
1 Manufacturer's Name
2 Applicable Standards
4 Material of connector
b. Bolts & Nuts
c. Spring washers
5 Rated Current
6 a. Rated terminal load (kg)
b. Factor of safety
7 Minimum thickness of any part (mm)
8 Weight of clamp complete with hardware (kg)
9 Type test reports as per IS enclosed
10 OGA drawing enclosed.
BUSHING / SUPPORT INSULATOR
1 Manufacturer's Name
3 Applicable Standards
ii. Diameter (Top)
iii. Diameter (Bottom)
5 Total Creepage distance (mm)
6 Rated voltage (kV)
7 Power frequency withstand voltage for 1 min. (k Vrms) dry and wet
8 1.2/50 micro sec. Impulse withstand voltage (kVp) dry and wet
9 250/2500 micro sec. switching impulse withstand voltage (kVp) dry and wet
10 Corona Extinction voltage (kV)
12 Max. allowable span (mm)
13 Cantilever Strength (kg)
14 OGA drawing enclosed.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR STATION AUXILIARY TRANSFORMERS
(Bidder should indicate the guaranteed technical data of all equipments/materials )
Sl. No. Description
2 Name of Manufacturer
3 Place of Manufacture
4 Reference standard
5 Service (indoor/outdoor)
6 Voltage Ratio
7 Rating in kVA
8 Rated Frequency (Hz)
9 Number of phases
10 Vector group
11 Core Material used and Grade
Over fluxing without saturation (Curve to be furnished by the manufacturer in support of his claim)
12 Maximum temperature rise of:
a. Winding by resistance method (0C)
b. Oil by thermometer (0C)
13 Magnetizing (No-load) current at :
14 Core loss in watts
a. Normal voltage
b. Maximum voltage
15 Resistance of windings at 200C (with 5% tolerance)
a. HV Windings (ohms)
b. LV Windings (ohms)
16 Full load losses (watt) at 750C
17 Total losses at 100% load at 750C
18 Total losses at 50% load at 750C
19 Current density used for : (Ampere/Sq.mm)
20 a. Clearances : mm (in oil)
c) HV Phase to Phase
d) End insulation clearance to earth
e) Any point of winding to tank
i. Clearances : mm (in air)
HV - Phase to Phase
LV - Phase to Phase
21 Efficiency at 750C (@ Unity P.F. and 0.8 P.F.)
22 Regulation at :
a) Unity P.F. and
b) 0.8 P.F. at 750C
23 % Impedance at 750C
24 Tap changing gear:
Type of tap changer
Total tap range (+) percent to (-) percent
Tappings provided at
25 Permissible overloading
26 Noise level when energized at normal voltage and normal frequency at no-load (db)
27 Insulation level in kV
Nominal system voltage (NSV)
Highest system voltage (HSV)
Power frequency withstand voltage
d) Lightning impulse withstand voltage
28 Mass of : (kg)
a) Core lamination (minimum)
b) Windings (minimum)
c) Tank and fittings
e) Oil quantity (minimum ) (litre)
f) Total weight
(i) Quantity for first filling (minimum) (litre)
(ii) Grade of oil used
(iii) Maker’s name
(iv) BDV at the time of filling (kV)
(v) Water content at the time of filling (in PPM)
30 Transformer:
Overall length x breadth x height (mm x mm x mm)
Tank length x breadth x height
Thickness of plates for
i) Side plate (min)
ii) Top and bottom plate (min)
Conservator dimensions
Heat dissipation by tank walls excluding top and bottom
Heat dissipation by cooling tube
Diameter and thickness of cooling tube
Total radiating surface in square metre
Whether calculation sheet for selecting cooling area to ensure that the transformer is capable of giving continuous rated output without exceeding temperature rise is enclosed.
32 Inter layer insulation provided in design for :
Top and bottom layer
In between all layer
Details of end insulation
Whether wedges are provided at 50% turns of the HV coil.
33 Insulation materials provided
a) For conductors
34 Material and size of the conductor used and current density
HV Dia (mm) SWG
LV i) Strip size
ii) No. of conductors in parallel
ii. Total area of cross section (all particulars as required in tender).
Current density - HV
Material of winding conductor
35 Whether the name plate gives all particulars as required in tender
36 Particulars of bushings HV/LV
Current Rating (Amps)/Voltage rating (kV)
Dry power frequency withstand voltage (kV rms)
Wet power frequency withstand voltage (kV rms)
Lightning impulse withstand voltage (kVp)
Creepage distance (mm)
37 Type of insulation used in
38 Type of insulation used on
ii) Core bolt washers
iii) Core laminations
39 Vacuum to which the tank can be subjected without distortion (torr)
40 Weight of insulated conductor
41 a) Weight of core
42 Weight of complete Transformer for transport
43 Period for which this design of transformer has been in commercial use.
44 Reactance of windings at 750C/ph
45 Resistance of windings at rated current and frequency
46 Type & size of Gas operated relay and whether supervisory alarm and trip contacts provided.
48 Temperature indicators
a)Oil temperature indicator
b) Winding temperature indicator
ii) Permissible setting ranges for alarm & trip
iii) No. of contacts
iii. Current rating of each contact
49 Ratio and type of CT used for winding temperature
50 No. of Breathers provided (Nos.)
51 Type of dehydrating agent used for breathers
52 Type , make and number of pressure relief device
Minimum pressure at which the device operates, Kg/cm2
53 Valves - sizes and numbers required/fitted
a) Drain cum sampling valve
b) Fitter valve
54 Characteristics of insulating oil to be used
b) Density (Max) at 20° C
c) Kinematic viscosity (max)
d) Interfacial tension
e) Flash point (Min)
f. Neutralization value
i) Total acidity (Max)
ii) Inorganic acidity/Alkalinity
a. Pour point (max)
b. Corrosive sulphur
i. Electric strength (break down voltage (min) with 2.5mm gap)
i) New Unfiltered oil as in received condition.
ii) After filtration.
j. Dielectric dissipation factor (tan delta) at 90°C (Max)
Water content (Max)
l. Specific Resistance (Min) (Resistivity)
i) At 90°C (min)
ii) At 27°C (min)
m. Oxidation Stability
i) Neutralization value after oxidation (Max.)
ii) Total sludge after oxidation (Max.)
n. Ageing characteristics after accelerated ageing (Open breaker method with copper catalyst)
a) Resistivity at 27°C
b) Resistivity at 90°C
c) Dielectric loss factor (tan delta) at 90°C
d) Total acidity mg KOH/g
e) Sludge Content (Max.)
o. Presence of oxidation inhibitor (Percent by weight)
55 Date of commencement of production of distribution transformer at the factory of the supplier
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUANRANTEED TECHNICAL PARTIULARS FOR LTAC PANELS
SL. NO. PARTICULARS
II Country of manufacturer
III Air circuit breakers of incoming and bus coupler circuits
1 Type of breakers
b Whether draw out type
2 Interupting rating
3 normal voltage
4 normal current
5 Making current
6 Method of extinguishing arc
7 Type of closing mechanism
8 Max. current for closing coil
9 Max. current for tripping coil
10 Temperature rise of contact under continuous full load over 45 C ambiens
11 Material & type of contacts
12 Type of overload protection provided externally by IDMTL with adjustable time lag.
a Thermal element
b Instataneous element
13 Range of adjustments of over load setting
14 Type of earth fault protection
15 Range of adjustments of earth fault protection
16 Time/current characteristics: CT over current protection moulded case (or equivalent) air breaker switch fuse units for distribution feeders
c Normal Voltage
d Normal current
e Interrupting rating
ii. Aymmetrical
f Method of extinguishing are
g Making current
h Fusing factor for fuses
I Temperature rise of contact under continuous full load over 45 C ambient
j Material & type of contacts
k Type of overload protection
l Range of adjustment of overload setting
m Time current characteristics of fuses of over current protection
V Current Transformers
b Accuracy class
c Normal VA class
d Accuracy class
e Rated over current factor
f Rated time of over current in seconds
a Sectional area
b Material of bus bar
c Current Carrying capacity
d Maximum arc rise
e Clearances between bus bar.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR POWER CABLES (LV CABLES)
SL. No PARTICULARS
1.1kV Grade PVC Power Cables
3 Manufacturer’s type designation
4 Applicable Standard
5 Rated voltage (volts)
6 Type & Category
7 Suitable for earthed or unearthed system
8 Continuous current rating when laid in air in a ambient temp. of 50°C and for maximum conductor temp. of 70°C of PVC Cables (For information only)
9 Ration factors applicable to the current ratings for various conditions of installation.
10 Short Circuit capacity
a)Guaranteed short circuit Amp. (rms) KA for 0.12sec duration at rated conductor temperature of 90 degree C, with an initial peak of 105kA.
b). Maximum conductor temp. allowed for the short circuit duty (deg. C) as stated above.
c) Cross section area (Sq.mm)
d) Number of wires (No.) minimum
e) Form of conductor
f) Direction of lay of stranded layer
12 Conductor resistance (DC) at 20°C per km - maximum
a) Composition of insulation
b) Nominal thickness of insulation (mm)
c) Minimum thickness of insulation
14 Inner Sheath
b) Calculated diameter over the laid up cores, (mm)
c) Thickness of sheath (minimum) mm
a) Type and material of armour
b) Direction of armouring
c) Calculated diameter of cable over inner sheath (under armour), mm
d) Nominal diameter of round armour wire (minimum)
e) No. of Armour wires/stripes
f)Short circuit capacity of the armour along for 1 second – for info. Only
g) DC resistance at 200C (Ω/Km)
16 Outer sheath
a) Material (PVC Type)
b) Calculated diameter under the sheath
c) Min. thickness of sheath (mm)
d) Colour of Sheath
a) Guaranteed value of minimum oxygen index of outer sheath at 270C *
b)Guaranteed value of minimum temperature index at 21 oxygen index *
c). Smoke density rating as per IEC 61034 *
d). Maximum HCL emission as per IEC 60754-1 *
e)All the factory acceptance test to be done as per relevant IS/IEC and CESC specification
18 a)Overall diameter of cable
b). Tolerance of overall diameter (mm)
a) Max./standard length per drum for each size of cable (single length) with ±5% Tolerance (mtrs)
b) Non standard drum lengths
20 Whether progressive sequential marking on outer sheath provided at 1 meter interval
21 Identification of cores
a) Colour of cores
22 Whether cables offered are ISI marked
23 Whether cables offered are suitable for laying as pr IS 1255
24 1.0 Continuous current rating of the cable
a) In ground at soil temperature 30°C and soil thermal resistivity of 150°C cm/watt and depth of burial about a metre (A)
b) In air at 40°C (A)
c) Overload capacity and duration (A, Hr)
d) Derating Factors for :
i) Soil temperature and thermal resistivity
ii) Ambient temperature
iii) Single core cables laid in trefoil circuits
2) General Technical Data (Power cables)
2.1) Equivalent star impedance per km of 3 Ph, circuit at power frequency at maximum conductor temperature (Ohm)
2.2) Maximum electrostatic capacitance per core per km of cable (F)
2.3) Maximum charging current per conductor per km at nominalvoltage (A)
2.4) Loss tangent at normal frequency and rated voltage
2.5) Maximum dielectric loss of cable per km at normal voltage and frequency Watts/km
2.6) Short circuit capacity for 1 Sec. KA (rms)
2.7) Short Circuit current capacity of armour (kA for 1 sec)
2.8) Maximum dielectric stress at core screen (kV/cm)
2.9) Maximum overall dia. of cable (mm)
3.0) Construction details including type of material used and thickness of each material for each type of cable in a tabular form.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL PARTICULARS FOR AC DISTRIBUTION BOXES (OUTDOOR)
(Bidder should indicae he guaranteed Technical data of all equipments/materials for each type of rating separately)
1.0 DB ASSEMBLY
1.3 Reference Standard
1.4 Voltage (Nom/Max)
1.5 Phase, Frequency No.Hz
1.6 Short Ciruit rating inerrupting symmetrical KA short time for 1 sec. KV rms
1.7 Construcion
Metal clad air insulated flour mounting Yes/No
Suitable for mouning against building wall Yes/No
a Degree of proecion
b Minimum thickness of sheet mm
1.9 DB fully assembled wired and tested at factory Yes/No
2.0 Consruction
a Compleely compartmentalised
b Working height limits from floor level mm
2.2 Control compartment providedwith individual front access door
2.3 DE section provided with removable back cover full height cable chamber
2.4 Horizontal wire way for iner panel wiring provided for each DB
2.5 All meters, relays lamps etc., flush mounted type
2.6 Vertical section size (LxDxH) mm
3.2 Material and grade
3.3 Reference Standard
3.4 Continuous currents at site condiion 50 deg ambient and within cubicles
a Main busbar Amp
b Vertical Busbar (min) Amp
3.5 Conductor section
a Main Busbar Sq.mm
b Vertical Busbar (min) Sq.mm
3.6 Max. Temp rise over 40 deg ambient deg C
3.7 Short time current for 1 sec KA rms
3.8 Separatechamber / phase barrier/ shrouding provided for
b Vertical Busbar (min)
3.9 Bus connections
a Silver plated
b Provided with anti-oxide grease
c Bimetallic connectors between dissimilar metals
3.10 Minimum clearance of bare busbar and connection
a Phase to Phase mm
b Phase to Ground mm
3.11 Busbar support spacing mm
3.12 Busbar colour coded Yes/No
3.13 Bus supportt insulators
c Reference Standard
e Minimum creepage distance mm
f Cantilever srength Kg/Sq.cm
3.14 Type of insulation used for busbars
3.15 Withstand voltage of busbar insulation material
4.3 Reference Standard
4.4 Switch standard
4.5 Switch furnished with
a Operating handle
b Door Interlock
c Provision for padlocking in ON & OFF positions
4.6 All feeders provided with bolted disconnect link
4.7 Current rating at 40 deg C ambient & wihin cubicle
4.8 Breaking current at 415 volts AC or 220 V DC
5.3 Reference Standard
5.4 Rupturing capacity KA rms
5.5 Continuous current at 40 deg C ambient and within cubicle Amps
5.6 Cut off currents KA Peak
5.7 Fuse characteristics furnished for various fuse rating
6.0 Thermal overload relays & single phase preventers
a Temperaure compensate?
c Number and Type of contacts
d Thermal overload characteristics
e Tolerance of current Injunction 1 pole
d Watts/Voltage
e Series resistor Ohm
f Lamp & Lens replaceable from fron
8.0 Terminal Block
8.4 Voltage Grade
8.5 20% Spare terminals furnished
9.0 CABLE TERMINATION
9.1 Cable entry provision from top & bottom
9.2 Cable termination & connection arrangement furnished as specified
9.3 Power cable lugs
9.4 Power Cable Glands
d With tapered washers
9.5 Removable gland plate
a material for multicore cable
b Material for I/C cable
c Thickness of the plate
10.0 Ground bus
10.1 Ground bus furnished
11.0 Name plate
11.2 Tthickness
12.0 Space Heater
12.1 Cubicle Heater
a Thermostat controlled
d Individual Switches & fuses provided
13 Tropical protecion
a Any special treament for tropical proection
b Screens are of corrosion resisant materials
15.1 Routine tests on DB to be performed
a Operating under simulate service conditions
b High voltage test
c Primary current & volage shall be applied to instrument transformer
d Routine test cerificate of all major equipment will be furnished
e Any other tests (to be specified)
16.0 Typical drawings/Data function
16.1 General arrangement
16.2 Foundation plan
16.3 Control scheme
16.4 Bill of Materials
17.0 Overall dimension & weight
1 AC Disctribution board
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR DIESEL GENERATING SETS
(Bidder should indicae the guaranteed technical data of all equipments/materials
for each type of rating separately)
Bidder's name VOID
1.00.00 General
1.01.00 Bidder's name and address
1.02.00 Manufacturer's name, type and address for
a Diesel engine along with accessories
e Batery Charger
f DG control panel for site condition
2.02.00 Revoluions per minute
2.03.00 Number and arrangement of cyliners
2.04.00 No. of strokes
2.05.00 Method of starting
2.06.00 Time required for startting from cold
2.07.00 Auxiliary power consumption
2.08.00 Type of governor
2.08.01 Sensitivy of Governor
2.09.00 Guaranteed limits of governing
a Permanent variation
b Full load thrown off
c Full load put on
2.10.00 total speed variation
2.11.00 Specification of fuel oil
2.12.00 Specification of lube oil
2.13.00 Guaranteed fuel consumption
2.14.00 Lubricating oil consumption
2.15.00 Mechanical efficiency
2.16.00 Thermal efficiency
2.17.00 Method of aspiration
2.18.00 Method of cooling of engine and lubricating oil
2.19.00 Amount of water required for cooling system
2.20.00 Total weight
2.21.00 Space requirement including clearances
2.22.00 Maker's name, type and technical Literature for the following:
a Air filter cum silencer
c Pressure guages
d Level indicator
f Fuel oil pump
2.23.00 Mechanical auxiliaries load connected on main shaft with rating
3.00.00 Storage tank
a Type and shape
c Number specified
d Material of construction
e Overall dimensions
f Plate thickness
4.00.00 Alternator
4.01.00 Rated KW capacity
4.02.00 Rated KVA capacity
4.03.00 Rated Terminal voltage
4.04.00 Rated power factor
4.05.00 Rated stator current
4.06.00 Rated speed
4.07.00 Rated frequency
4.08.00 No. of phases
4.09.00 Excitation current and voltage at rated power output and power factor
4.10.00 Efficiencies and power factor at 110%. 100%, 75%, 50% and 25% of full load
4.11.00 Inherentt regulation (o C)
4.12.00 % Impedance
a Xd" Saturated
b Xd" Unsaturated
4.13.00 Type of exciter used, Capacity rating of exciter
4.14.00 Class of insulation
4.15.00 Permissible temperaure rise of
a Armature winding
b Field winding
4.17.00 Short circuit ratio gap
4.18.00 Overload capacity
4.19.00 Insulation level test voltage
4.20.00 Total weight & dimensions
4.21.00 Applicable standards
4.22.00 Automatic voltage regulator type, Technical, specifications and characteristics curves
4.23.00 Elecrical auxiliaries load connected to generator terminals with rating
5.00.00 Engine alternator set
5.01.00 Starting time (in sec)
5.02.00 Interval between starting impulse (in sec)
5.03.00 No. of starting impulses
5.04.00 Time for picking up the load
6.00.00 Control Panel / Board
6.01.00 Manufacurer's name and address
6.02.00 Sheet steel thickness
6.03.00 Dimensions
6.04.00 Colour shadeas per IS:5
6.05.00 Degree of protection
6.06.00 Mounting details
6.07.00 Make, type technical specification and catalogues for each type component to be mouned in conrol panel enclosed.
6.08.00 Current Transformer Measurement Protection
a Type and make
b Rated ransformation ratio
c Rated primary current
d Rated secondary current
f Insulation class
h Class of accuracy
i Accuracy limit factor
j Applicable standards
a Voltage Grade
c Conductor material
d (mm2) size of conductor
i For AC circuits
ii For DC Circuits
e No of conductors
f Maximum current rating
g Colour code used
h Type of terminals
i Size of erminals
j Applicable standards
6.10.00 Indicating Instruments
c Scale size (in degree)
f Relevant catalogue enclosed
7.00.00 Battery Charger
7.01.00 Manufacturer's name and address
7.02.00 Type of rectifier
7.03.00 Rated ouput current (Amps)
7.04.00 Output voltage range (Volts)
7.05.00 Applicable standards complete technical specification and literature to be furnished
8.00.00 Battery
8.02.00 Name of Manufacurer and address
8.03.00 No. of cells
8.04.00 Capacity in AH
8.05.00 Capaciy current of
i Full charged battery
ii Fully discharged battery
8.06.00 Average life in years
8.07.00 Applicable standard
8.08.00 Weight of the battery
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR STATION /PLCC BATTERY SET AND BATTERY CHARGERS
(Bidder should indicate the guaranteed technical data of all equipments/ materials for each type of rating separately)
Sl. No. PARTICULARS Units 110 V, 200 AH Battery sets
2 Plante type or Grid Plate type:
Type reference:
3 Nominal Voltage per cell Volts
4 Manufacture’s Name
5 Standards to which battery is manufactured
6 IS Nomenclature
7 Number of cells in the battery bank
8 Nominal Voltage of Battery Volts
9 Declared Capacity at 27 degree C upto 1.85 ecv
iii). End of Life AH
10 Rated Capacity at minimum ambient temperature Ah
11 Rated Capacity at maximum ambient temperature Ah
12 Capacity in AH at various end cell voltages and duration of discharge
15 minutes 1.65
45 minutes 1.71
13 Open circuit voltage of each battery cell
a). Fully charged
b). Floating condition
c). When completely discharged at
14 Maximum momentary current for 1 min till 1.60 e.c.v.
15 Expected life of battery under normal operation & maintenance conditions Years
16 Internal Resistance of each cell (IR) milli ohms
a). at Fully charged condition
b). at Fully discharged condition
c). at Floating condition
17 Total Resistance of Battery including inter connectors between the cells Ohms
18 Loss in Capacity in 21 hours due to self discharge %
19 Recommended Charging rate for
a). Float charging
i. Limit current A
b). Boost Charging
i. Starting Current A
ii. Finishing current A
20 Trickle Charging Rate
21 Equalizing Charge
c). Duration Hrs.
d). Interval between successive equalizing charge Months
22 a). Time to full charge at finishing rate only Sec
b). Time to full charge at higher starting rate sec
c). Time for full charge to charge by two step charging at starting up and finishing rates Sec
23 Recommended Specific gravity of Electrolyte at 27deg. C
a). for first filling
b). at full charge
c). when Battery is discharged at 10 hours rate
24 Permissible max. temperature of electrolyte
a). During Initial Charging deg C
b). During Normal Charging deg C
25 a.Amount of electrolyte and Specific gravity at 27 deg. C
for first filling
b) Electrolyte conforms to Standard
26 Overall dimensions
i). Each cell L x W x H mm
(tolerance of +/-2mm in each case)
ii). Complete Battery mm
27 Distance between cell centres mm
28 Quantity of Electrolyte per cell litres
29 Quantity of Electrolyte for battery (including 10% extra) litres
30 Weight (+/-5%)
Each cell i). without acid Kg
ii). With acid kg
31 Complete Battery i). without acid Kg
ii). With acid kg
32 Total shipping weight of Battery units Kg
33 Material and type of Plates
(i). Positive Plates
a). Material and Type
b). Height of Positive Plate mm
c). Thickness of Positive Plate mm
d). Area of Positive Plate Sq.m
e). No. of positive plates per cell
f). Whether positive plates of individual cells are interchangeable
(ii) Negative Plates
a). Material and Type
b). Height of Negative Plate mm
c). Thickness of Negative Plate mm
d). Area of Negative Plate Sq.m
e). No. of Negative plates per cell
f). Whether Negative plates of individual cells are interchangeable
34 Material and type of Separators
a). Material and Type
b). Thickness of separator mm
35 Clearance between bottom of the plate and the bottom of the container mm
36 Clearance between top of the plates and top of container mm
37 Clearance between edges of plates and inner surface of container mm
38 Sediment space (depth) mm
39 Whether explosion vents are offered
40 Type of Vent and Filling Plugs
a). Thickness of Container mm
b). Material of Container & Type
c). Outside dimensions (L x B x H)
a). Type of cover
b). Material of cover
44 Material of Inter-Cell Connectors
45 Thickness of Inter-Cell Connections mm
46 Method of connection
47 a). Inter-row, Inter-tier connectors and end take-offs furnished?
b). Description, Size, current rating, Type & Material
48 Connection hardware with 5% extra furnished?
49 Material of Bolt, Nut and Washer for inter-cell and Cable Connections
50 Cell insulators provided. If yes, material of insulator Yes/No
a). Number of racks per battery
b). Number of cells per rack
c). Type of racks
d). Material of rack
e). Dimensions of the racks
g). Shipping weight
52 Racks provided with
a). Numbering tags for cells
c).Whether anti acid coating is provided
53 Insulator with 5% extra furnished for
54 Ventilation requirements
55 Cubic content of battery rooms m3
56 Gas generation per single cell per hour Lit
57 No. of air exchanges required per hour
58 Standard Maintenance accessories provided Yes/No
59 Gasification Voltage per Cell Volt
60 Recommended Max. period of cell storage before the first Charge (After Installation and filling of Electrolyte)
61 Recommended Storage life of Battery (dry shelf life)
62 Does the battery meet the required duty cycle curve Yes/No
63 Short circuit current at Battery terminals when
a). Float at 2.1 Volts/Cell
b). Boost charge to 2.75 Volts/Cell
64 Time for which the Battery can withstand short circuit at terminals.
70 Dimensioned layout drawings of the rack & battery to be attached with the tender. Yes/No
Battery Charger Battery Charger for 110V, 200 AH Battery sets
1 Manufacturer’s type of designation
2 Type of Rectifier and rating as per IS – 3895 with latest version
3 Input AC supply.
c) No. of Phases
e) Power Factor
4 Percentage Tap provided on the Transformer +/- & Voltage ratio of Transformer & KVA rating.
i) For Boost Charger
ii) For Float Charger
5 Boost/Quick charge current
6 Float Charge Current
7 Trickle Charge Current
8 Whether Auto/Manual feature is provided
9 Whether voltage across load is constant while boost/quick charging the battery
10 Whether Automatic change over from Boost Charging mode to Float Charging is provided when AC failure takes place.
11 a) Allowable limits to voltage variation on A.C. side for satisfactory charging of DC side.
b) Type of device on AC side
12 Instantaneous forward voltage drop versus instantaneous current at rated service (a graph to be enclosed)
13 Type of voltage control for Boost Charger, Float charger & Trickle Charger
14 Instantaneous reverse current versus instantaneous reverse volts at rated service (a graph to be enclosed)
15 Range of variation of DC voltage and device used for the same
16 Rated DC output for
a) Boost Charger
b) Float Charger
17 D.C. output voltage regulation from no load to full load
18 Maximum ripple content in %
19 Maximum permissible temperature rise over an ambient temperature
20 Whether the charger is tropicalised
21 Over load capacity
22 Duration of overload
23 Efficiency at
24 Dimensions of the charger width x Height x depth in mm
25 Weight of the charger in Kgs
26 Recommended spares
27 List of major accessories provided
28 Other Details, if any
29 Rating & make of Thyristor
30 Meters (Ammeter/Voltmeter)
31 Heat Sink for Boost Charger & Float Charger Whether provided
DETAILS OF COMPONENTS & RATING
I DC Distribution Board
i. Maker's Name
ii. Country of Manufacturer
iii. Number of Circuits with rating
i. Sectional Area
iii. Current Carrying Capacity
iv Maximum Temperature rise over 45oC ambient with continuous full load condition
v. Type of Supporting Insulator
III Small Wiring
IV Moulded Case (OR Equivalent) Air Break Switch & Fuse Units
iii. Normal Voltage
iv. Normal Current
v. Interrupting Capacity
vi. Fusing Factor for fuses
vii. Temperature rise of contact under oC continuous full load condition over 45oC ambient temperature
viii. Material & Type of Contact
V Dimensions of Battery Charging Panel (Including DCDB)
VI Dimensions of DC Distribution Panel
VII i. Number of Crates for Shipment, Shipping Dimensions of the largest crate
ii. Whether equipments and the Switchboards are tropicalized or not
iii. How is access provided to the switchboard interior
iv. Mounting Arrangements for cable glands provided.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR NICKEL CADMIUM BATTERY SET and BATTERY CHARGER
(Bidder should indicate the guaranteed technical data of all equipments/ materials for each type of rating separately)
Sl. No. PARTICULARS Units 110 V, 200 AH Battery sets
2 Nickel Cadmium type:
Type reference:
3 Nominal Voltage per cell Volts
4 Manufacture’s Name
5 Standards to which battery is manufactured
6 IS Nomenclature
7 Number of cells in the battery bank
8 Nominal Voltage of Battery Volts
9 Declared Capacity at 27 degree C upto 1.0 ecv
iii). End of Life Ah
10 Rated Capacity at minimum ambient temperature Ah
11 Rated Capacity at maximum ambient temperature Ah
12 Capacity in AH at various end cell voltages and duration of discharge Ah
13 Open circuit voltage of each battery cell
a). Fully charged
b). Floating condition
c). When completely discharged at
14 Maximum momentary current for 1 min till 1.0 e.c.v.
15 Expected life of battery under normal operation & maintenance conditions Years
16 Internal Resistance of each cell (IR) milli ohms
a). at Fully charged condition
b). at Fully discharged condition
c). at Floating condition
17 Total Resistance of Battery including inter connectors between the cells Ohms
18 Loss in Capacity in 21 hours due to self discharge %
19 Recommended Charging rate for
a). Float charging
i. Limit current A
b). Boost Charging
i. Starting Current A
ii. Finishing current A
20 Trickle Charging Rate
21 Equalizing Charge
c). Duration Hrs.
d). Interval between successive equalizing charge Months
22 a). Time to full charge at finishing rate only Sec
b). Time to full charge at higher starting rate sec
c). Time for full charge to charge by two step charging at starting up and finishing rates Sec
23 Recommended Specific gravity of Electrolyte at 27deg. C
a). for first filling
b). at full charge
c). when Battery is discharged at 5 hours rate
24 Permissible max. temperature of electrolyte
a). During Initial Charging deg C
b). During Normal Charging deg C
25 a) Amount of electrolyte for first filling and Specific gravity at 27 deg. C
b) Electrolyte conforms to Standard
26 Overall dimensions
i). Each cell L x W x H mm
(tolerance of +/-2mm in each case)
ii). Complete Battery mm
27 Distance between cell centres mm
28 Quantity of Electrolyte per cell litres
29 Quantity of Electrolyte for battery (including 10% extra) litres
30 Weight (+/-5%)
Each cell i). without acid Kg
ii). With acid kg
31 Complete Battery i). without acid Kg
ii). With acid kg
32 Total shipping weight of Battery units Kg
33 Material and type of Plates
(i). Positive Plates
a). Material and Type
b). Height of Positive Plate mm
c). Thickness of Positive Plate mm
d). Area of Positive Plate Sq.m
e). No. of positive plates per cell
f). Whether positive plates of individual cells are interchangeable
(ii) Negative Plates
a). Material and Type
b). Height of Negative Plate mm
c). Thickness of Negative Plate mm
d). Area of Negative Plate Sq.m
e). No. of Negative plates per cell
f). Whether Negative plates of individual cells are interchangeable
34 Material and type of Separators
a). Material and Type
b). Thickness of separator mm
35 Clearance between bottom of the plate and the bottom of the container mm
36 Clearance between top of the plates and top of container mm
37 Clearance between edges of plates and inner surface of container mm
38 Sediment space (depth) mm
39 Whether explosion vents are offered
40 Type of Vent and Filling Plugs
a). Thickness of Container mm
b). Material of Container & Type
c). Outside dimensions (L x B x H)
a). Type of cover
b). Material of cover
44 Material of Inter-Cell Connectors
45 Thickness of Inter-Cell Connections mm
46 Method of connection
47 a). Inter-row, Inter-tier connectors and end take-offs furnished?
b). Description, Size, current rating, Type & Material
48 Connection hardware with 5% extra furnished?
49 Material of Bolt, Nut and Washer for inter-cell and Cable Connections
50 Cell insulators provided. If yes, material of insulator Yes/No
a). Number of racks per battery
b). Number of cells per rack
c). Type of racks
d). Material of rack
e). Dimensions of the racks
g). Shipping weight
52 Racks provided with
a). Numbering tags for cells
c).Whether anti acid coating is provided
53 Insulator with 5% extra furnished for
54 Ventilation requirements
55 Cubic content of battery rooms m3
56 Gas generation per single cell per hour Lit
57 No. of air exchanges required per hour
58 Standard Maintenance accessories provided Yes/No
59 Gasification Voltage per Cell Volt
60 Recommended Max. period of cell storage before the first Charge (After Installation and filling of Electrolyte)
61 Recommended Storage life of Battery (dry shelf life)
62 Does the battery meet the required duty cycle curve Yes/No
63 Short circuit current at Battery terminals when
a). Float (Volts/Cell)
b). Boost charge (Volts/Cell)
64 Time for which the Battery can withstand short circuit at terminals.
65 Dimensioned layout drawings of the rack & battery to be attached with the tender. Yes/No
Battery Charger Battery Charger for 110V, 200 AH Battery sets
1 Manufacturer’s type of designation
2 Type of Rectifier and rating as per IS – 3895 with latest version
3 Input AC supply.
c) No. of Phases
e) Power Factor
4 Percentage Tap provided on the Transformer +/- & Voltage ratio of Transformer & KVA rating.
i) For Boost Charger
ii) For Float Charger
5 Boost/Quick charge current
6 Float Charge Current
7 Trickle Charge Current
8 Whether Auto/Manual feature is provided
9 Whether voltage across load is constant while boost/quick charging the battery
10 Whether Automatic change over from Boost Charging mode to Float Charging is provided when AC failure takes place.
11 a) Allowable limits to voltage variation on A.C. side for satisfactory charging of DC side.
b) Type of device on AC side
12 Instantaneous forward voltage drop versus instantaneous current at rated service (a graph to be enclosed)
13 Type of voltage control for Boost Charger, Float charger & Trickle Charger
14 Instantaneous reverse current versus instantaneous reverse volts at rated service (a graph to be enclosed)
15 Range of variation of DC voltage and device used for the same
16 Rated DC output for
a) Boost Charger
b) Float Charger
17 D.C. output voltage regulation from no load to full load
18 Maximum ripple content in %
19 Maximum permissible temperature rise over an ambient temperature
20 Whether the charger is tropicalised
21 Over load capacity
22 Duration of overload
23 Efficiency at
24 Dimensions of the charger width x Height x depth in mm
25 Weight of the charger in Kgs
26 Recommended spares
27 List of major accessories provided
28 Other Details, if any
29 Rating & make of Thyristor
30 Meters (Ammeter/Voltmeter)
31 Heat Sink for Boost Charger & Float Charger Whether provided
DETAILS OF COMPONENTS & RATING
I DC Distribution Board
i. Maker's Name
ii. Country of Manufacturer
iii. Number of Circuits with rating
i. Sectional Area
iii. Current Carrying Capacity
iv Maximum Temperature rise over 45oC ambient with continuous full load condition
v. Type of Supporting Insulator
III Small Wiring
IV Moulded Case (OR Equivalent) Air Break Switch & Fuse Units
iii. Normal Voltage
iv. Normal Current
v. Interrupting Capacity
vi. Fusing Factor for fuses
vii. Temperature rise of contact under oC continuous full load condition over 45oC ambient temperature
viii. Material & Type of Contact
V Dimensions of Battery Charging Panel (Including DCDB)
VI Dimensions of DC Distribution Panel
VII i. Number of Crates for Shipment, Shipping Dimensions of the largest crate
ii. Whether equipments and the Switchboards are tropicalized or not
iii. How is access provided to the switchboard interior
iv. Mounting Arrangements for cable glands provided.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR PLCC BATTERY AND BATTERY CHARGERS
(Bidder should indicate the guaranteed technical data of all equipments/ materials for each type of rating separately)
1 Manufacturers Name
2 Guaranteed AH capacity at Ten hours discharge rate to 1.85 volts per cell at 27 degC
3 AH capacity at one hour Discharge rate to 1.75 volts per cell at 27 degC
4 Cell designation in accordance with Indian Standards
5 Applicable Indian Standards
6 Average life in years
7 Recommended range of Float/Boost charging voltage
8 Boost charging current
9 Open circuit voltage of cell when completely discharged at 27 deg C
a)At ten hours Discharge rate
b)At one hour discharge rate
10 Type of construction of positive plates
11 Type of construction of negative plates
13 Sediment space (mm)
14 Cell dimensions (mm)
15 Recommended cell centers Distance (mm)
16 Amount and specific gravity of electrolyte per cell Required for first filling at 27 deg C
17 Specific gravity of electrolyte when fully charged at 27 deg C
18 Maximum electrolyte Temperature that cell can withstand continuously without injurious effects
19 Battery Racks
a)Type of material
b)Outline dimensions(mm)
c)Whether anti-acid cotating provided
d)Net weight(kg)
20 Insulators materials(for Racks and cells)
21 Weight per cell
a)Net dry weight(kg)
b)With electrolyte(kg)
22 Total shipping weight of Acid for one battery unit (kg)
23 Total shipping weight of One battery unit(without Electrolyte)
24 Short circuit current at Battery terminals
25 Time for which the battery can withstand short circuit at terminals
26 Internal resistance of each cell
i. Fully charged condition
ii. Fully discharged condition
27 Recommended air charges per hour
Battery Charger
1 Manufacturers Name
2 Charger dimensions
iv. Sheet thickness(mm)
3 Charger weight(kg)
4 Charger rated output current
i. Float charging mode
ii. Boost charging mode
5 Load limiter current setting Range(Trickle mode)
6 Automatic voltage regulator(Float mode)
ii. Percentage stabilisation of the output DC voltage
iii. Voltage setting range
iv. Response time of Automatic voltage Regulator
7 Manual voltage regulator(Float mode)
ii. Voltage setting range
8 Boost charging current setting range
9 Boost charging limit setting range
10 Rectifier assembly:
i. Type of semiconductor material
ii. Rated direct current per cell
iii. Rated direct voltage
iv. Rated input voltage
v. Type of connections of rectifier elements
vi. Standard applicable
11 Rectifier transformer:
ii. Rated KVA & % impedance
iii. Input line winding connection in vector representation.
iv. Cell winding connection in vector representation
v. One minute power frequency withstand voltage(KV)
vi. Standard applicable
12 Instruments:
ii. DC voltmeter range
iii. DC Ammeter range
v. Accuracy class per IS
ii. Rated voltage
iii. Rated current
iv. No. of power contacts
v. No. type and rating of aux. contacts
vi. Operating coil voltage
vii. Drop out voltage
14 Thermal overload relay
i. Tripping current range
ii. Whether single phasing protection provided
iii. Standard applicable
15 Air Break Switches:
ii. Rated voltage
iii. Rated Current
iv. Type and material of contacts
v. Standard applicable
ii. Rupturing capacity
iii. Standard applicable
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR
D.C DISTRIBUTION PANELS WITH DC EARTH FAULT INDICATORS
( Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
SL.No Bidders Name
1.3 Reference Standard
1.4 Voltage (Nom/Max)
1.5 Short Circuit Rating a) Short Time for 1sec KA
1.6 Insulation Level 1Min., 50 Hz voltage withstand KV rms
1.7 Construction
a)Metal clad air Insulated floor mounting: Yes/No
b)Suitable for mounting against building wall Yes/No
a)Degree of Protection
b)Minimum thickness of sheet mm
1.9 DB fully assembled wired and tested at factory Yes/No
a)Completely Compartmentalised
b)Working height limits from floor level mm
2.2 Control compartment provided with Individual front access door
2.3 DB Section provided with
a)Removable back cover
b)Full Height cable chamber
2.4 Horizontal wireway for inter panel wiring provided for each DB
2.5 All meters, relays lamps etc.. Flush mounted type
2.6 Vertical Section Size (LxBxH)mm
3.2 Material & Grade
3.3 Reference Standard
3.4 Continuous Currents at site condition 50 deg. Ambient and within cubicle.
b)Vertical Busbar(min)
3.5 Conductor Section
a)Main Busbar sq.mm
b)Vertical Busbar sq.mm
3.6 Max.temp rise over 40 deg. Ambient deg.C
3.7 Separate chamber/barrier/shrouding provided for
b)Vertical Busbar
3.8 Bus Connections
a)Silver Plated
b)Provided with antioxide grease
c)Bimetallic Connectors between dissimilar metals
3.9 Minimum Clearance of busbar and connection
a)Phase to Phase mm
b)Phase to ground mm
3.1O Busbar support spacing mm
3.11 Busbars colour coded Yes /No
3.12 Bus Support Insulator
c)Reference Standard
d)Voltage Class
e)Minimum Creepage distance mm
f)Cantilever Strength Kg/Sq.cm
3.13 Type of insulation used for Busbars
3.14 Withstand voltage of busbar insulation material
4 CONTROL MODULE
4.1 Control Modules
a)Fixed type for incoming & outgoing feeders
4.2 Power/Control disconnects silver plated for good contacts
4.3 Draw out Modules of same type & rating are physically & electrically interchangeable
5 Insulation Level 1Min., 50 Hz withstand KV rms
6.3 Reference Standard
6.4 Switch Standard
6.5 Switch furnished with
a)Operating handle
b)Door Interlock
c)Provision for padlocking in ON & OFF positions
6.6 All feeders provided with bolted disconnect link
6.7 Current rating at 40 deg.C ambient & within cubicle
6.8 Breaking current ar 220V D.C
7.3 Reference Standard
8.4 Utilization Category
8.5 Operating Coil Voltage
8.6 Continuous Current rating @ 45 deg. C and within cubicle A
8.7 Power Consumption
a)During Closing VA
b)After Closing VA
8.8 Auxiliary contacts furnished per contact
a)Normally Open (NO)
b)Normally Closed (NC)
8.9 Auxiliary contact rating Amps
a)Make and Continuous
b)Break(Inductive) at 220V DC
9 PUSH BUTTON & LAMPS
9.1 Push Button
c)Contact Rating Amps. Make & Continuous break/220 KV DC
10 SECONDARY WIRING
10.1 Type of insulation
10.2 Voltage Grade
10.3 Conductor Size
10.4 Conductor Size(Minimum)
a)Potential Circuit Sq.mm
b)Current & Control Circuits Sq.mm
10.5 Wires identified at both ends with ferules
11 TERMINAL BLOCK
11.4 Voltage Grade
11.5 20% spare terminals furnished
12 CABLE TERMINATION
12.1 Cable entry provision from top & bottom
12.2 Cable Termination & connection arrangement furnished as specified
12.3 Power Cable Lugs
12.4 Power Cable Glands
d)With tapered washers
12.5 Removable Gland Plate
a)Material for multicor cable
b)Material for I/C Cable
c)Thickness of the plate
13.1 Ground Bus furnished
15 SPACE HEATER
15.1 Cubicle Heater
a)Thermostat Controlled
d)Individual switches and fuses provided
16 TROPICAL PROTECTION
a)Any Special treatment for tropical protection
b)Screens are of corrosion resistant materials
17 PAINTING Finish of DB
18.1 Routine tests on DB to be performed
a)Operating under simulated service conditions
b)High Voltage Test
c)Primary current & voltage shall be applied to instrument Transformer
d)Routine test Certificates to all major equipments will be furnished
e)Any other tests(to be specified)
19 TYPICAL DRAWINGS/DATA
19.1 General arrangement
19.2 Foundation Plan
19.3 Control Scheme
19.4 Bill of materials
20 OVERALL DIMENSION & WEIGHT 2.DC Distribution Panel
B TECHNICAL PARTICULARS OF EARTH FAULT INDICATOR
21 Earth Fault Indicator for DC Co.
21.3 Reference Standard
21.4 Input Supply details
a)Voltage Normal/Max
d)Consumption VA
21.5 Fault sensing characteristics
a)Fault resistance level
b)Max. Permissible loop length/resistance of cable
d)No. of Sensors Provided
e)Max.No of outgoing feeder that can be covered
f)Mention if there are any limitations on outgoing feeder load current, fault current etc.,
21.6 Insulation level 1 Min. 50 Hz voltage withstand KV rms
21.7 Construction
a)Completely Compartmentalised Modular type
b)Working height limit from floor level
c)Construction such as Metal Clad, Fabrication Steel, aluminium house air Insulated etc.,
d)Suitable for mounting against building wall Yes/No
e)Degree of protection
f)Min.Thickness of sheet metal mm
g)Physical Dimension
21.8 Earth fault Indicator fully assembled wire and tested at factory
21.9 Earth fault Indicator section accessibility to individual compartments
21.1O Mounting arrangements
21.11 Design-Assembly
a)Drawout Modules of same type and rating are physically and electrically interchangeable
b)Whether of Modular type
c)Indicators provided for power ON/OFF
Positive Lead to ground Fault
Negative Lead to ground Fault
Identification of faulty feeder
d)Controls provided for
1)Positive accept
2)Negative accept
4)LED test switch
e)Audio alarms provided with details
f)Auxiliary annunciation provided for remote panel
g)Permissible maximum room temperature
21.12 Earth Terminal
21.14 Detailed Literature on construction working etc., enclosed
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR CONTROL CABLE
(Bidder should indicate the guaranteed technical date of all equipments/materials for each type of rating separately)
SL. No PARTICULARS
3 Manufacturer’s type designation
4 Applicable Standard
5 Rated voltage (volts)
6 Type & Category
7 Suitable for earthed or unearthed system
8 Continuous current rating when laid in air in a ambient temp. of 50°C and for maximum conductor temp. of 70°C of PVC Cables (For information only)
9 Ration factors applicable to the current ratings for various conditions of installation.
10 Short Circuit capacity
a)Guaranteed short circuit Amp. (rms) KA for 0.12sec duration at rated conductor temperature of 90 degree C, with an initial peak of 105kA.
b). Maximum conductor temp. allowed for the short circuit duty (deg. C) as stated above.
c) Cross section area (Sq.mm)
d) Number of wires (No.) minimum
e) Form of conductor
f) Direction of lay of stranded layer
12 Conductor resistance (DC) at 20°C per km - maximum
a) Composition of insulation
b) Nominal thickness of insulation (mm)
c) Minimum thickness of insulation
14 Inner Sheath
b) Calculated diameter over the laid up cores, (mm)
c) Thickness of sheath (minimum) mm
a) Type and material of armour
b) Direction of armouring
c) Calculated diameter of cable over inner sheath (under armour), mm
d) Nominal diameter of round armour wire (minimum)
e) No. of Armour wires/stripes
f)Short circuit capacity of the armour along for 1 second – for info. Only
g) DC resistance at 200C (Ω/Km)
16 Outer sheath
a) Material (PVC Type)
b) Calculated diameter under the sheath
c) Min. thickness of sheath (mm)
d) Colour of Sheath
a) Guaranteed value of minimum oxygen index of outer sheath at 270C *
b)Guaranteed value of minimum temperature index at 21 oxygen index *
c). Smoke density rating as per IEC 61034 *
d). Maximum HCL emission as per IEC 60754-1 *
e)All the factory acceptance test to be done as per relevant IS/IEC and CESC specification
18 a)Overall diameter of cable
b). Tolerance of overall diameter (mm)
a) Max./standard length per drum for each size of cable (single length) with ±5% Tolerance (mtrs)
b) Non standard drum lengths
20 Whether progressive sequential marking on outer sheath provided at 1 meter interval
21 Identification of cores
a) Colour of cores
22 Whether cables offered are ISI marked
23 Whether cables offered are suitable for laying as pr IS 1255
24 1) Continuous current rating of the cable
a) In ground at soil temperature 30°C and soil thermal resistivity of 150°C cm/watt and depth of burial about a metre (A)
b) In air at 40°C (A)
c) Overload capacity and duration (A, Hr)
d) Derating Factors for :
i) Soil temperature and thermal resistivity
ii) Ambient temperature
iii) Single core cables laid in trefoil circuits
2) General Technical Data (Power cables)
2.1) Equivalent star impedance per km of 3 Ph, circuit at power frequency at maximum conductor temperature (Ohm)
2.2) Maximum electrostatic capacitance per core per km of cable (F)
2.3) Maximum charging current per conductor per km at nominalvoltage (A)
2.4) Loss tangent at normal frequency and rated voltage
2.5) Maximum dielectric loss of cable per km at normal voltage and frequency Watts/km
2.6) Short circuit capacity for 1 Sec. KA (rms)
2.7) Short Circuit current capacity of armour (kA for 1 sec)
2.8) Maximum dielectric stress at core screen (kV/cm)
2.9) Maximum overall dia. of cable (mm)
3.0) Construction details including type of material used and thickness of each material for each type of cable in a tabular form.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR XLPE INSULATED 11KV CABLES (11kV HT UG Cable)
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Sl. No. PARTICULARS Unit HT UG Cable
a) Name of manufacturer
b) Place of manufacture
3 Applicable specification & standards voltage Grade
4 Suitable for effective Earth/Unearth system
6 Permissible voltage & frequency variation for satisfactory operation
7 Continuous current for standard condition as per IS:
a) In air (450C) Amps
b) In Ground (450C) Amps
c) In Duct Amps
b) Shape of conductor
c) Nominal cross sectional area mm²
d) Number of wire: (min) No
e) Diameter of Wire : mm before compacting & strand Diameter mm
f) Maximum DC resistance of the conductor at 200C Ω/KM
9 Conductor Screening
c) Thickness (Min) mm
d) Continuous working temp deg.C
e) Max allowable temp at termination of short circuit deg.C
b) Thickness of Insulation (Nom) mm
i) Between Cores mm
ii) Between Cores & Inner Sheath
c) Minimum thickness of insulation at any one point (mm)
d) Extrusion Type
e) Specific insulation resistance at 900C Ohm-cm
11 Insulation Screening:
b) Min. Thickness of extruded semi conducting layer mm
c) Metallic Part: (Material)
d) Size of copper Tape mm
e) Whether over lapping provided
f) Short Circuit rating in 1 sec. KA
12 Inner Sheath
b) Extrusion Type
c) Thickness (Min) mm
d) Nominal Dia over Inner Sheath mm
b) Type of armouring
c) Nominal Dimension of Armour wire mm
d) Minimum Number of Armour wire
e) Whether Galvanised
f) Mass of Zinc coating gm/mm²
g) Nominal Dia over Armouring mm
h) Short Circuit rating in 1 sec KA
14 Outer Sheath
b) Extrution type
c) Min. thickness of sheath mm
d) Nominal Overall diameter of cable mm
e) Colour Minutes
15 Short circuit withstand capacity
a) Short Circuit withstand capacity KA
b) Duration of short circuit sec
16 AC resistance per core at operating temperature ohm/km
17 Reactance Ohm/Km ohm/km
18 Capicitance per core μF/Km
19 Allowable maximum conductor temperature when carrying current
20 Insulation resistance at 270C (Volume resistivity) ohm-cm
21 Loss tangent
22 Maximum cable charging current at normal operating voltage A/km
23 FRLSH Properties:
a. Min. Oxygen Index.
b. Min. Temperature Index.
c. Max. Halogen Acid gas generation.
d. Max. smoke density rating.
e. Max. light transmittance.
24 Recommended Minimum bending radius. mm
25 Safe pulling force. Kg
26 Cable weight Kg/Km
27 Length of cable per drum Mtrs.
Additional data
28 Core identification
29 Standard Packing Length and Tolerance Mtrs
30 Scheme of identification of the cable
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR MCVCB / PCVCB 11KV SWITCH GEAR COMPONENTS
(Bidder should indicate the guaranteed technical data of all equipment/materials for each type of rating separately)
1) Type of instrument
3) Whether magnetically shielded or not
4) Scale length and range
5) Whether tropicalised
6) Short time overload capacity
7) VA burden current coil
8) Power consumption of current coil
9) ISS grade of accuracy
10) Description leaflet
11) Temperature at which instrument calibrated
II. Multifunction Meter:
1) Type of Instrument
3) Whether magnetically shielded or not
4) Scale length & range
5) Whether tropicalised
6) Short time overload capacity
8) Power consumption
9) ISS grade of accuracy
10) Description leaflet
11) Temperature at which instrument calibrated
12) List of display parameters:
13) Communication protocol:
III. ELECTRONIC TRIVECTOR METER
1) Type and Rating
3) Whether magnetically shielded or not
4) Whether troplicalised
5) Rates VA burden – current coil - Potential coil
6) Continuous over load rating - Current coil - Potential coil
7) Accuracy class and grade
8) Adjustments provided
9) Limits of error at UPF and at 125% 25% and 10% of rated current
10) Limits of error at 0.5PF and at 125% 25% and 10% of rated current
11) Type of Registering Mechanism
12) Display sequence
13) Details of display a. Parameters that can be measured b. Details of print out parameters Refer Cl. 9.5.0 E
14) Whether the meter can be used to get demand details
15) Whether optical readout facility provided
16) Whether detailed literatures enclosed
17) Additional features provided
1 a. Type and particulars of windows b. Whether the annunciator is electro mechanical type Yes/No
1) Particulars of wiring
2) Rated voltage
3) Power consumption
4) Instantaneous making capacity of contacts
5) Breaking capacity
6) Overall dimensions of annunciator group
7) Descriptive leaflet of schematic diagram
V.(A) GENERAL PROTECTION RELAYS :
I The tenderer shall furnish guaranteed Technical particulars for all types of meters offered, in the following proforma (separate sheet shall be enclosed for each type of relay :)
1) Manufacturer's name or trade marks
2) Type designation
3) Size and mounting details (whether in draw out case)
4) Rated Values of both input and auxiliary energizing quantities
5) Values of the limits of the operative range(s) of the auxiliary energising quantity (ies)
6) Contacts data, Number and rating of main and auxiliary contacts
7) Rated value or setting range of the characteristic quantities and or angle
8) Limiting short-time thermal withstand values
9) Limiting dynamic values.
10) i. Burden data ( in case of poly input relays - data shall be furnished for appropriate set of input terminals). a. At highest tap - AC current / voltage coil b. At lowest tap - AC current / voltage (coil) ii. DC power consumption.
11) Impulse and dielectric test voltage(s)
12) Details of accessories (If essential to the relay performance)
13) Details of accessories (Optional items)
14) Whether provided with seal in trip contacts
15) a. Type of operating characteristics b. Accuracy of operating characteristics, operating time with details
16) H.F. disturbance test voltage (s)
17) Whether literature enclosed
18) Type of relay flag indicator and rating of target coil
VI (B) PROTECTIVE RELAYS
1 Non-directional IDMT Inst. OCREFR Relays
b) Current coil rating
c) VA burden 1) Highest tap 2) Lowest tap
e) Power consumption 1) Highest tap 2) Lowest tap
f) Time of operation at maximum dial setting at: 1) 5 times tap setting current 2) 10 times tap setting current
g) Type of characteristics
h) Whether drawout type or not
i) Trip Contact Rating amps.
j) Whether seal in contacts provided or not.
2 DIRECTIONAL OVER CURRENT RELAY
b) Current coil rating
c) VA burden i. Highest tap ii. Lowest tap.
e) Power consumption 1) Highest tap 2) Lowest tap
f) Time of operation at maximum dial Setting at: 1) 5 times tap setting current 2) 10 times tap setting current
g) Type of characteristics
h) Whether draw out type or not
i) Trip contact rating amps.
j) Whether seal in contacts provided or not
k) Minimum voltage at which relay operates
VII CIRCUIT BREAKER:
1 RATING a. No. of poles b, Rated voltage c. Rated normal current d. Rated frequency e. Making capacity in peak kA f. Breaking capacity : i) Symmetrical in KA and MVA i) Assymmetrical ii) The maximum Capacity of the Capacitor bank for which the breaker is designed to open g. Short time current in kA h, Operating duty
2 DETAILS OF SHORT CIRCUIT TYPE TEST CERTIFICATES
3 CONSTRUCTIONAL PARTICULARS: a. No. of breaks in series per pole b. Total length of breaks per pole c. Type of main contacts d. Type of arcing contacts e. Type arc control device f. Min. clearance in air a) Between live parts b) Between live parts and earth g. minimum clearance in VCB h. Mechanical endurance i. Electrical endurance j. Method of closing mechanism i) Type of operating mechanism ii) Whether hand or power or both iii) Whether the circuit breaker is designed to close and latch on making or is fitted with a making current release. iv) Whether the circuit breaker is trip free. v) Time required to charge the spring. vi) Details of spring charging motor power required at designed normal voltage k. Normal voltage of shunt trip coil l. Power required at normal voltage in VA
4 OPERATING PARTICULARS
a. a. Opening time
a) With no current b) At rated breaking current
b. Closing arc duration at
a) 10% SC breaking current b) 60% SC breaking current C) 80% SC breaking current d) 100% SC breaking current
c. Speed of Break at -
a) 10% SC breaking current b) 60% SC breaking current c) 80% SC breaking current d) 100% SC breaking current
VIII CURRENT TRANSFORMER:
a) Make b) Type C) Ratio d) Burden e) Accuracy class as per ISS
IX POTENTIAL TRANSFORMERS
a) Make b) Type c) Ratio d) Burden e) Accuracy class
X AUXILARY TRANSFORMER
a) Make b) Type C) Ratio d) Details of OFF load taps
1. size 2. Material 3. Whether insulated 4. Make/ type of busbar insulator 5. Creepage distance of busbar insulator
XII ELEVATING STRUCTURE
i. Sections used for main supports ii. Sections used for cross angles. iii. No./Size of foundation bolts. iv. Total weight support structure v. Total weight of circuit Breaker impact load to be Taken for design of foundation
Date Designation
Place Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR STATION AND YARD LIGHTING
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
LIGHTING SYSTEM: (Lighting Fixtures & Accessories (Data to be submitted separately for each type and size)
1 Manufacturer's Name and country of manufacture
2 Country of manufacturer for
3 Applicable standards for
4 Manufacturer's type and catalogue No. for
5 Nominal working voltage (volts)
6 Maximum permissible supply voltage variation for satisfactory operation of
a)fixtures(+,- O/L)
b)Accessories(+,- O/L)
7 Power factor at nominal working voltage and frequency
8 Full Load input current at Nominal working voltage (Amps)
9 Power loss per ballast at nominal working voltage and frequency (watts)
10 Maximum hot spot temperature of ballast case (0C)
11 Maximum average ballast winding Temperature(0C)
12 Ambient temperature within the fitting in continuous operation at the design ambient air temperature (0C)
13 Insulation class of ballast winding (0C)
14 Average life expectancy of
15 Lamp output at the design temperature
a)After 100 burning hours (Lumens)
b)After 1000 burning hours(Lumens)
16 lamp output at the end of the Expected life period (Lumens)
17 Average light output of the fitting as a percentage of lamp output
a)Downwards (%)
18 Beam angle for flood lights in
a)Horizontal plane (Degrees)
b)Vertical plane (Degrees)
19 a)Cable/Conduit entry size
b)Size and type of cable
20 Earthing terminal
b)Suitable for earthing conductor of size
21 Weights of Fixtures(kg)
22 a)Starting current & P.F for lamp (Amps)
b)Operating current (Amps)
c)Time Vs Mains current & P.F characteristics during starting enclosed (yes/No)
Reference cat No.
Conduits & Accessories (For each type & size)
1 Manufacturers name and country of manufacture
2 Manufacturers type designation
3 Applicable standards
4 Whether descriptive pamphlet is enclosed yes/no
Junction Boxes(For each type & size)
1 i)Manufacturer's name and country of manufacture
ii)Manufacturer's type designation
iii)Material specification
iv)Type of enclosure
b)Current rating (Amps)
c)Voltage rating (Volts)
d)Stud type (Yes/No)
e)Complete with insulated Barriers(yes/no)
vi)Whether descriptive pamphlet is enclosed? (Yes/no)
Lighting panels(for each type & size)
a)Manufacturers name and country of manufacture
b)Indoor/Outdoor applications
c)Design ambient air temp (0C)
d)Thickness of sheet steel(mm)
e)Degree of protection provided(as per IS:2147 or equivalent)
f)Bill of material for various Equipment giving make, type Rating., etc. enclosed(yes/no)
g)Colour of finish paint
ii. Temp rise at rated current over specified ambient (500c)
iii. Continuous current rating at 500C
iv. Whether suitable for one second current rating of 5 KA, A.C or 4KA, DC As applicable (yes/No)
v. Cross section
vi. Application standard
i)Control wiring
i. Material of conductor
ii. Size of conductor/dia of wire(2)
j)Conductor - solid/stranded
k)Terminal blocks
ii. Current rating
a)Power terminals (Amps)
b)Other terminals(Amps)
l)All tests are specified in specifications will be carried out (yes/no)
2 Air Break Switches (for each type of size)
a)Manufacturers name and country of manufacture
b)Manufacturers type description
c)Applicable standard
d)Rated voltage(volts) & frequency(Hz)
e)Rated current (Amps)
f)Rated Breaking current (Amps)
g)Maximum through fault current withstand derating factor for use under site ambient conditions
h)Temperature rise of contacts when carrying continuous rated current under site conditions (0C)
3 Fuses (For each type & size)
a)Manufacturers name and country of manufacture
b)Manufacturers type description
c)Applicable standard
d)Rated voltage(volts)
e)Rated current (Amps)
f)Whether fuse is mounted in an insulated carrier (Yes/No)
g)Whether fuse carrier has an Aperture for fuse failure indication (Yes/No)
h)Category of duty (IS:2208)
i)Rupturing capacities(Prospective Current)(KA)
j)Maximum led through current for 1sec(KA)
k)Whether time/current characteristics are enclosed (Yes/No)
4 Miniature Circuit Breaker(for each type and rating)
a)Manufacturers name and country of manufacture
c)Rated Voltage
f)Current Rating
i)Continuous at 50 degC Ambient(Amps)
ii)1 sec (KA rms)
g)Breaking capacity/single pole/Double Pole/Tripple pole)
i)Symmetrical (KA rms at volts)
ii)Asymmetrical (KA rms at volts)
h)Total interrupting cycle time
i)Type of blowout device
j)Type of overload(thermal/magnetic)
k)Terminal suitable for cable size pole/Tripple pole
l)Upto what fault current Discrimination between incomer fuse & M.C.B will be obtained
m)Miniature breaker conform to
5 Contactors(For each type DC/AC size)
a)Manufacturers name and country of manufacture
b)Rated voltage & permissible variation(volts)
c)Rated Burden(V.A)
d)Rated current(thermal) of main contacts
e)No. & type of Aux. contacts(if any)
f)Rated voltage of coil(volts)
g)Pick up voltage
h)Rated duty class
i)Drop off voltage
j)Applicable standard
Lighting Wires(For each Type & size)
1 Manufacturers name and country of manufacture
2 Standards applicable
3 Rated volatage(volts)
4 Continuous current rating when laid in conduit in an ambient Temperature of 50 degC (Amps)
b)Nominal cross sectional area (mm2)
c)Number & diameter of wires(No/mm)
a)Composition of insulation
b)Thickness of insulation
c)Tolerance on thicknes of insulation
d)Specific insulation resistance at 60 degC
7 Colour scheme for identification of wires
8 Whether descriptive pamphlet is enclosed yes/no
Painting, Printer, Finish Coat
1 Paints(for each type)
a)Manufacturers name and country of manufacture
b)Manufacturers type designation/brand name
2 Number of coats provided for
a)Junction Boxes
3 Applicable standards
4 Name and address of the contractor sub-contractor who shall supply, install and commision the lighting system in accordance with the Technical specifications
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR CAPACITOR BANK WITH SERIES REACTORS AND NEUTRAL CURRENT TRANSFORMERS:
(Bidder should indicate the guaranteed technical data of all equipment/materials for each type of rating separately)
I CAPACITOR UNITS
1 Standards applicable
2 Name of the make
3 Rated voltage of individual unit
4 Rated KVAR of each unit
5 50 C/S test voltage and duration between terminals
6 Impulse test voltage between terminals
7 Power frequency withstand volage-10secs
8 Capacitance of each unit
9 Continuous KVA for which the unit is designed
10 Temperature rise of container at rated output and at ambient of 45 degC
11 Tolerance for KVA output plus and minus
12 Maximum unbalance in phase current%
13 Details of voltage rise caused by the blow fuses (for internal fuse type)
14 Type of insulating liquid and quantity in each unit
15 Type of containers and thickness
16(i) a)Shape of basic element
b)Type of dielectric
c)Thickness of dielectric(by weight)
d)Thickness of dielectric layers between Aluminium foils
e)Voltage rating of each Capacitor (element)
f)Voltage stress
g)Is each element provided with fuse
(ii) Type of fuse
(iii) Make of fuse
17 Whether provided with internal over pressure dis-connector (yes/no)
18 Whether instruments to detect internal fuse failure is provided
19 Dimensions and weight
20 a)Material of dielectric
b)Dielectric loss per unit(watts)
c)Dielectric loss for the entire capacitor bank
21 Whether CRCA containers of unit capacitor provided with earthing terminals
22 Whether the unit capacitors and capacitor banks are of outdoor type requiring no protection from the direct rays of the sun and rain.
23 Upper limit and lower limit of temperature for which capacitors are designed
II CAPACITOR BANK
1 Rated voltage of capacitor bank
2 KVAR rating of capacitor bank at
a)Nominal system voltage
b)Rated voltage
3 Rated current at rated voltage
4 Rated frequency
5 Number of units in series and parallel in each phase of individual groups(schematic diagram of connections to be enclosed)
6 No. of banks offered
7 Over voltage to which the remaining units in series groups of phase leg are subjected when elements of unit capacitors be come defective(calculations to be enclosed)
8 Area required for the installation & clearance
III TECHNICAL PARTICULARS FOR REACTOR
1 Type and make
2 Reference standard
3 Rated voltage
4 Rated current
5 a)No. of phases 3 phase / 1 phase
b)Type of connection neutral side / line side
6 Rated capacity/inductance
7 Continuous rating in % of rated current of capacitor bank
8 Rated frequency
9 Compensation % of series reactor
10 Rated short time current and duration
11 Basic insulation level
a)Impulse withstand voltage KV peak
b)Power frequency withstand voltage KV rms
c)Switching surge withstand voltage KV peak
12 Reactance at rated output, rated MVAR
13 Description of wdg. Insulation
14 Winding resistance
15 Material of winding Cu/Al
16 Maximum current density A/Sq.mm
18 Maximum temp.rise
19 Terminal arrangement
20 Maximum system voltage for which reactor is designed
21 Type of shielding adopted in the reacor
22 Fitting and accessories
24 Noise level and ref. standard db
25 Vibration level
26 harmonic content if any
27 Approximate weight
IV NEUTRAL CURRENT TRANSFORMER
2 Manufacturers type designation
3 Rated voltage
4 Rated primary current
5 Rated secondary current
6 Secondary terminal voltage at normal current
7 Secondary terminal voltage at 10 times normal voltage
8 Core details: knee point voltage VA Class of accuracy
9 Rated current dynamic (peak value)
10 One minute power frequency dry withstand voltage KV/RMS
11 One minute power frequency wet withstand test voltage on secondaries KV/RMS
12 One min power frequency withstand test voltage on secondaries kv/RMS
13 1.2/50 Micro second impulse withstand voltage (KV/peak)
15 Mounting details
16 Overall dimensions
1 Rated voltage of the fuse
2 Current rating of the fuse link or refill unit
3 Maximum continuous current capability
4 Current rating of the fuse base of fuse carrier contacts
5 Time current characteristics for an ambient Air temp of 27 deg C Furnished/ Not furnished
6 Rated capacitive breaking current
7 Maximum values which the fuse can withstand for 5 and 100 discharges
8 Maximum available capacitor energy which the fuse can withstand at the specified voltage without bursting
9 Minimum pre arcing time and maximum total clearing time at inductive and capacitive power frequency current
10 Cold resistance of fuse link and percentage tolerance of resistance value.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR 11KV 400 A, SPECIAL (ROSTERING) G.O.S
Sl. No. Particulars 400 A, SPECIAL (ROSTERING) G.O.S 400A, Double break Isolators
1.0 Individual units
2 a)Unit description as per ISS-5350/part-III/ 1971
b)Mechanical strength as per clause 3.2 of IS-5350 part-III / 1871
2.0 Impulse withstand voltage test conducted as per IS-2544-1963
3.0 Power frequency withstand test
4.0 Puncture voltage
5.0 Creeping distance
6.0 Failing load as per IS 5350 part III /1971
7.0 Height of insulator(min)
8.0 Insulating part dia
9.0 Top metal fitting pitch circle dia
10.0 Bottom metal fitting pitch circle dia
11.0 a)No. of bolts
b)Bolts holes dia
c)Nominal dia of mounting face not to exceed
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
SCHEDULE OF GUARANTEED TECHNICAL PARTICULARS OF TOWERS
BIDDERS NAME AND ADDRESS
1 Standards adopted : i) Properties of Section
ii) Bolts and Nuts
iii) Galvanising
2 Minimum sheared edge distance (mm)
3 Minimum Rolled edge distance (mm)
4 Quality of Zinc used for galvanizing
5 Maximum percentage increase in structure Weight due for galvanization
6 Quality of Zinc required for galvanization Per MT of structurals
7 Size of bolts and nuts (including foundation bolts and nuts for support structure) i) Fasternes
iii) Foundation Bolts
8 i. Name of designer of Towers
ii. Name of fabricators of Towers
9 Maximum Working stress employed in design: i. Tension of net sectional area Kg/Sq.mm
ii. Compression of Gross Sectional area Kg/Sq.mm
iii. Shearing stress on bolts Kg/Sq.mm
iv. Bearing stress on bolts Kg/Sq.mm
v. Strut formula adopted for determining Crippling stress in designs Kg/Sq.mm
10 OTHER PARTICULARS:
i. Maximum slenderness ratio used in designs: a) Main members
b) Lattice members having nominal stresses
c) Redundant member having nominal stresses
d) Members under tension only
ii. Standards according to which properties of sections have been adopted in Design
iii. Standard specifications according to which the quality of steel for the sections assumed in designs.
iv. Standard to which galvanizing will conform
v. Minimum edge shear distances
vi. Minimum shear edge distances.
vii.Minimum rolled edge distances
viii. Quality of zinc required per Metric tonne of tower weight
ix. Sizes of bolts and bolt holes
x. Standards to which bolt holes confirm
xi. Maximum percentage increase in tower due to galvanizing
xii. Name of manufacturer of bolts and nuts
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS OF TOWER FOUNDATIONS
BIDDERS NAME AND ADDRESS
I Properties of concrete used 1:2:4 Mix (M15) a) Effective weight in dry locations
b) Effective weight in wet locations
c) Maximum compressive strength
d) Maximum tension strength
e) Maximum bond strength
f) Maximum shear strength
g) Maximum punching shear strength
II Thickness of the minimum layer of concrete from the extreme edge of the concrete
III Minimum thickness of chimney: a) In wet locations
b) In dry locations
IV Quantity of cement required per Cmt. Of finished concrete: a) 1:2:4 Concrete
b) 1:3:6 Concrete
V Formula adopted for calculating side thrust:
The Bidder shall furnish a typical sketch of foundation for all types of foundation for all types of soil conditions with the Bid.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS FOR DISC INSULATORS
BIDDERS NAME AND ADDRESS
Sl.No. Description Single Suspension Double Suspension Single Tension Double Tension
1 a) Type of Insulator (Ball and Socket)
b) Size and designation of ball and socket with standard to which it conforms ( mm)
2 Maker's Name and Address
3 No. of Insulator Discs/Long rod per string
4 Dimensions of Single Disc/Single long rod a) Disc Diameter in mm
b) Unit spacing in mm
c) Leakage/creepage distance
5 Mechanical values of single Disc/Single long rod a) Combined mechanical and electrical strength in KN.
b) Mechanical Breaking strength in KN
c) Routine mechanical test load in KN
6 Electrical values of Single Disc/Single long rod: a) Low frequency flash over voltage (dry) in KV:
b) Low frequency flash over voltage (wet) in KV
c) Impulse flashover voltage 1.2x50Cys Positive ----------KV Negetive----------KV
d) Power frequency withstand voltage of single disc/single long rod Dry ……………..kV Wet……………...kV
e)Impulse withstand voltage of single disc/long rod. 1.2x50 Cys Positive ……………. KV Negetive……………..kV
f)Power frequency puncture voltage kV of single disc/long rod.
6 Net weight of Insulator unit in kG.
7 Minimum visible discharge test voltage kV
8 Maximum RIV at 10 kV (RMS)
9 Standard specification to which the Insulators conform.
10 COMPLETE STRING: a) Total Creepage distance
11 Total length of string (Insulator only) in mm.
12 Power frequency withstand voltage of single Disc. a) Dry ………….. kV(rms) b) Wet……………kV(rms)
13 Impulse withstand voltage ……..kVP
14 Switching Impulse withstand voltage of single disce a) Dry …………KV(rms) b) Wet………….KV(rms)
15 Maximum Voltage distribution ……%
16 Reference drawing (Single Disc)
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS FOR SILICON RUBBER HOUSED COMPOSITE INSULATORS
BIDDERS NAME AND ADDRESS
Sl.No. Description Single Suspension Double Suspension Single Tension Double Tension
1 Manufacturer’s name, address & country.
2 Bidder’s name, address & country
3 Size & designation of Ball & Socket(mm)
4 Standard to which Ball & socket will conform
5 Section length of insulator (mm)
6 No. of units per string
7 Number of weather sheds per unit.(nos)
8 Material of housing and weathershed
9 Creepage distance of insulator in mm.
10 Dry arc distance (mm)
11 Specified Mechanical Load (SML) of insulator in KN
12 Dry Power frequency withstand Voltage (KV rms)
13 Wet Power frequency withstand Voltage (KV rms)
14 Positive Lightning Impulse withstand Voltage under Dry condition (KVp)
15 Negative Lightning Impulse withstand Voltage under Dry condition (KVp)
16 Dry Power frequency Flash over Voltage (KV rms)
17 Wet Power frequency Flash over Voltage (KV rms)
18 Positive Lightning Impulse Flash over Voltage under Dry condition (KVp)
19 Negative Lightning Impulse Flash over Voltage under Dry condition (KVp)
20 Maximum RIV including CC rings, Arcing horns, Clamps etc. at 1.1 times maximum Corona inception Voltage (KV rms) line to ground voltage ( micro volts)
21 Corona extension Voltage (KV rms)
22 Whether details regarding method of fixing end fitting to FRP rod, method of detecting harmful cracks on FRP rod during crimping and method of manufacturing are enclosed.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS FOR PORCELAIN LONG ROD INSULATOR
BIDDERS NAME AND ADDRESS
Sl.No. Description Single Suspension Double Suspension Single Tension Double Tension
1 Manufacturer’s name, address & country.
2 Bidder’s name, address & country
3 Size & designation of Ball & Socket(mm)
4 Material of disc
6 Type of locking device and its material
8 Tolerance on Core dia mm
9 Nominal length (Section length mm
10 Tolerance on Nominal Length mm
11 Dry Arcing distance mm
12 Shed profile (type) mm
13 Shed spacing mm
14 Shed profile (Regular/Alternating) mm
15 Shed dia (Big/Small) mm
16 Tolerance on Shed dia (Big/Small) mm
17 Minimum Creepage distance mm
18 Guaranteed mechanical load KN
19 Routine mechanical load KN
20 Material a. Weather sheds & housing with % contents of silicon b. End fittings
21 Power frequency withstand voltage of single unit a. Dry KV(rms) b. Wet KV(rms)
22 Impulse withstand voltage of single unit (Dry) a. Positive KV(peak) b. Negative KV(peak)
23 Switching surge withstand voltage (wet) KV(rms)
24 Minimum corona extinction voltage at 50 Hz AC KV(rms)
25 RIV at MHz for phase to earth of 305KV micro volts
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS OF HARDWARE OF INSULATORS
BIDDERS NAME AND ADDRESS
Sl.No. Particulars Single Suspension Double Suspension Single Tension Double Tension
1 Maker’s Name and Address
2 Size and designation of ball and socket with standard to Which it conforms.
3 Details of Hardware a. Breaking strength kGs
b. Slipping strength kGS.
c. Dimensions mm
d. Length of string mm
e. Distance between arcing horn tips
f. Size of arcing horn i. Line side
4 Manufacturing process of dead end clamp whether cast or extruded
5 Angle of inclination of jumper terminal in case of dead end clamps.
6 Guarantee of conductivity of dead end clamp a. Results of heating cycle test carried out if any
b. Value of electrical resistance
7 Materials of security clips and pins used
8 Results of type test, routine and sample test carried out if any.
9 Components: Material with minimum Bending Strength chemical suspension tension composition a) Socket Clevis
c) Anchor Shackle
d) Clevis Clevis
h) Security Clip
k) Sag adjustment plate
l) Horn holder ball eye
m) Twisted shackle -- i. Whether the parts are designed for interchangeability for different types of string.
ii. Standard specifications to which the materials conform to
iii. Standarad specifications to which galvanising conforms to.
iv. Corona performance
v. Whether reference drawings attached
vi. Whcther reference type tests and other test report attached.
10 CLAMPS i. Type
ii. Material with chemical composition a. Clamp
b. Keeper plate
c. Side strap or link
iii. Slip strength
iv. Breaking strength
v. Magnetic Power loss in Watts.
vi. Electrical Resistance
11 PREFORMED ARMOUR RODS: a. Materials with chemical composition
b. Breaking strength
d. Conductivity
e. No. of Rods per set
f. Diameter of rod with tolerance
g. Length of rod with tolerance
12 BOLTS AND NUTS a) Make of Bolts and Nuts
b) Standard specifications to which Galvanising conforms,
13 COMPLETE STRING i. RIV at 266 kV in micro volts
ii. Minimum corona extinction voltage
iii. Maximum voltage across any disc
iv.Mechanical failing load Kgf
v. No. deformation load Kgf
14 Total weight of hardware
15 Whether hardware fittings are suitable for Hot line maintenance
16 Whether ball and socket meets the ‘GO’ and ‘NO GO’ gauge Test as per IS:2485 (Part-II 1972)
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
BIDDERS NAME AND ADDRESS
GUARANTEED TECHNICAL PARTICULARS OF ACCESSORIES OF ACSR CONDUCTOR AND GROUND WIRE
Sl.No. Description ACSR Conductor Ground wire
Mid-Span joint Repair Sleeves Mid-Span joint Repair Sleeves
1 Maker’s Name and Country
3 Suitable for Conductor size
4 Outside Diameter of Sleeves: a) Before Compression i. Aluminium
b) After Compression i.Aluminium
5 Inside diameter of sleeves before compression a. Aluminium
6 Length of Sleeves a) Before Compression i. Aluminium
b) After Compression i. Aluminium
7 Weight of Sleeves per joint a. Aluminium kG
8 Guaranteed breaking strength of the mid span joint as percentage of ultimate tensile strength of Conductor / ground wire given in the specification.
9 Conductivity of the compression joint expressed as percentage of the conductivity of the conductor/ground wire
10 Corona performance: a) Corona inception voltage (KV) rms i) Dry
b)Corona power loss per unit in Watts at rated voltage. i. Dry
c)Corona power loss per Unit in Watts at rated voltage i. Dry
d)Radio Interference Voltage at one mega hertz d1) Dry condition at: i. Normal rated line voltage
ii. 5% above rated line voltage
11 Full details of the hydrualic compressors and dies required
12 Guaranteed slip strength of the mid-span joints expressed as percentage of ultimate tensile strength of conductor/earthwire.
13 Resistance as percentage of measured resistance of equivalent of conductor.
14 Standard specifications to which the materials will be manufactured and tested.
15 Packing details
Guaranteed Technical Particulars for Vibration Dampers for ACSR Conductor and Ground Wire
Sl.No. Particulars ACSR Conductor 7/3.15mm Ground Wire
1 Maker’s Name and Country
3 Suitable for Conductor size
4 Total weight of each damper ( in kG)
5 Diameter of balancing weights (in mm)
6 Length of balancing weights (in mm)
7 Weight of each balancing weights (in mm)
8 Tolerance in balancing weights %
9 Slip strength of steel messenger cable
10 a) Diagram showing power dissipated by the damper in watts for various vibration frequencies and amplitudes.
b) Diagram showing the Vibration energy per conductor bundle for various frequencies under varied winds and spans
11 Natural frequency of Damper a) Upper (Cycles per second)
b) Lower (Cycles per second)
12 The Number of Dampers required per span for various span lengths and their spacings.
13 Position of fixing damper on each sub-conductor from the clamp mouth. a) At tension points i. First damper mm
ii. Second damper if required mm
b) At suspension points from the mouth of the clamp. i. First damper mm
ii. Second damper if required mm
14 Corona Performance a) Corona Inception Voltage i.Dry
b) Corona power loss per unit in watts at rated voltage. i. Dry
c) Corona power loss per unit in Watts at rated voltage. i. Dry
d) Radio interference voltage at one mega hertz. d1) Dry condition at : i. Normal rated line voltage
ii. 20% above rated voltage
d2) Wet condition at : i. Normal rated line voltage
ii. 5% above the rated line voltage
15 Test report of the damping characteristics and energy dissipation.
16 Whether a write up explaining the suppression of aeolian vibration and the sub-conductor oscillation by vibration dampers is given in the tender.
17 Max. bending amplitude under given conditions with 2 dampers per span per sub-conductor.
18 Damping efficiency of the damper.
19 Wind velocity range for which damper will be effective.
20 Standards to which materials will be manufactured and tested
21 Packing details
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
DETAILS OF TYPE TESTS CONDUCTED
(All the names of type tests and IS/IEC Nos. to be clearly mentioned)
BIDDERS NAME AND ADDRESS
Sl.No. Particulars of type test Certificate detail Nos. etc. Date of Test Laboratory where conducted
I DISC INSULATOR 120 KN/90KN (AS PER IS 731) a) Visual Examination
b) Verification of dimensions
c) Visible discharge test
d) Impulse voltage withstand test
e) Wet power frequency voltage withstand test
f) Temperature cycle test
g) Electromechanical failing test
h) Mechanical failing load test
i) 24 hours Mechanical strength test
j) Puncture test
k) Porosity test
l) Galvanising test
m) Radio interference test
II INSULATOR HARDWARE (AS PER IS 2486) a) Slip strength test for clamps
b) Mechanical test for clamps
c) Electrical resistance test for tension clamps
d) Heating cycle test for tension clamps
e) Verification of dimensions
f) Galvanizing test/electroplating test
g) Visual examination
h) Mechanical strength for complete string units.
III ACSR CONDUCTOR (AS PER IS-398 and other relevant standards) a) Visual Examination
b) Measurements of diameter of individual wires
c) Measurement of lay ratio
d) Breaking load test
e) Ductality test
f) Wrapping test
g) Resistance test
h) Galvanizing test
i) Load test on composite conductor
j) Surface condition test
l) Radio Interference test
IV ACCESSORIES FOR ACSR CONDUCTOR AS PER IS 2121 and other equivalent standards
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
GUARANTEED TECHNICAL PARTICULARS FOR FIRE FIGHTING EQUIPMENTS
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
SL.NO TECHNICAL PARTICULARS OF PRESSURISED WATER TYPE FIRE EXTINGUISHERS-PORTABLE
1.01 Manufacturer
1.02 Number offered
1.03 Guaranteed Performance
i)Capacity, litters
ii)Maximum effective range when Tested in still air condition, M
iii)Minimum period during which the jet shall be maintained at a length of not less than 6m secs.
iv)Maximum period for discharge of 95% of the solution secs.
1.04 Construction Features:
i)Relevant standard and method of operation
ii)Test pressure of extinguisher body kg/cm2 g
iii)Whether handle is provided (YES/NO)
iv)Provided seal to indicate that the Extinguisher has not been used? (YES/NO)
1.05 Material of construction(specify code/standard No.)
1.06 Approximate weight of Extinguisher (cylinder filled kg)
1.07 Dimensions in mm.
i)Cylinder length
ii)cylinder diameter
iii)Cylinder body thickness
iv)External diameter of extinguisher
v)Overall height of extinguisher
vi)Throat diameter of nozzle
1.08 Codes and Standards followed
1.09 Supplied First Charge (YES/NO)
1.1O List of Accessories provided
1.11 Necessary and condition of Refilling
1.12 Drawing/Literature Enclosed with offer? (YES/NO)
1.13 Whether Approved by Tariff Advisory committee of India? (YES/NO)
1.14 TECHNICAL PARTICULARS OF DRY CHEMICAL POWDER TYPE EXTINGUISHER-PORTABLE
1.14.1 Manufacturer
1.14.2 Number offered
1.14.3 Guaranteed Performance
i)Capacity, litres
ii)Maximum effectice range when tested in still air condition, M
iii)Minimum period during which the jet shall be maintained at a length of not less than 6m secs.
iv)Maximum period for discharge of 95% of the solution secs.
1.14.4 Contruction features
i)Relevant standard and method of operation
ii)Test pressure of extinguisher body.
iii)Test pressure for hose(if any)
iv)Whether handle is provided (Yes/No)
v)provided seal to indicate that the extinguisher has not been used? (Yes/No)
vi)Chemical charge in container
vii)Gas used for transporting the Dry powder
1.14.5 Material of construction
vi)Hose, if any
1.14.6 Approximate weight of Extinguisher(cylinder filled)
1.14.7 Dimensions in mm.
i)Cylinder length
ii)cylinder diameter
iii)Cylinder body thickness
iv)External diameter of extinguisher
v)Overall height of extinguisher
vi)Throat diameter of nozzle
vii)Length & size of hose, if any
1.14.8 Codes and Standards followed
1.14.9 Supplied First Charge of chemical
1.14.10 List of Accessories provided
1.14.11 Necessary and condition of Refilling
1.14.12 Drawing/Literature Enclosed with offer?
1.14.13 Whether Approved by Tariff Advisory committee of India?
1.15 TECHNICAL PARTICULARS OF CARBON DIOXIDE TYPE EXTINGUISHERS-PORTABLE
1.15.1 Manufacturer
1.15.2 Country of origin
1.15.3 Year of manufacture
1.15.4 Numbers offered
1.15.5 Guaranteed Performance
ii)Maximum effective range when Tested in still air condition
iii)Maximum period for discharge
1.15.6 Construction Features:
i)Method of operation
ii)Test pressure of extinguisher body
iii)Pressure test connection provided on body (Yes/No)
iv)Gas being used as pressuring medium
1.15.7 Material of construction
1.15.8 Approximate weight of Extinguisher(cylinder filled)
1.15.9 Dimensions in mm.
i)Cylinder length
ii)cylinder diameter
iii)Cylinder body thickness
iv)External diameter of extinguisher
v)Overall height of extinguisher
vi)Throat diameter of nozzle
1.15.10 Codes and Standards followed
1.15.11 Supplied First Charge of chemical (Yes/No)
1.15.12 List of Accessories provided
1.15.13 Necessity and condition of Refilling
1.15.14 Drawing/Literature Enclosed with offer? (Yes/No)
1.15.15 Whether Approved by Tariff Advisory committee of India? (YES/NO)
1.16 TECHNICAL PARTICULARS FOR NITROGEN INJECTION FIRE EXTINGUISHING (for 10MVA & Above).
1.16.1 Power supply
1.16.2 Control Box -- 220/110V DC
Fire Extinguishing cubicle(lighting) -- 230V AC
1.16.3 Fire Extinguishing cubicle for 100MVA,31.5 MVA 20MVA , 10 MVA capacity
Nitrogen cylinder capacity
1.16.4 Fire Extinction period
On system activation
On commencement of Nitrogen injection
1.16.5 Control Box
1.16.6 Fire Detectors
Heat Sensing temperature
GUARANTEED TECHNICAL PARTICULARS FOR NITROGEN INJECTION FIRE PROTECTION SYSTEM FOR TRANSFORMERS (for 10MVA & Above).
1 Name of manufacturer and country of origin
2 Reference standards
3 Details of system equipments
a. Fire extinguishing cubicle
iii)Capacity of Nitrogen cylinder
iv)Pressure of Nitrogen filling
v)Minimum distance of FE cubicle from the transformer
vi)Method of mounting
vii)Whether the following items are provided in FE cubicle. If so furnish make, type & other details
- Contact manometer
- Pressure regulator
- Oil release unit
- Gas release unit
- Oil drain assembly
- Pressure / limit switches
- No. of contacts & spare contacts(NO & NC)
viii)Oil drain valve
- Type of metal
ix)Nitrogen Injection valve
- Quantity required
x)Oil Drain pipe
xi)Nitrogen Injection pipe
- Number of openings in the transformer tank
iii)Type & Thickness of sheet steel
iv)Details of components provided in the control box
v)Control voltage
vi)Method of mounting
vii)Whether audio and visual alarms provided?
c)Transformer Conservator Isolator Valve (TCIV) (Main /Backup)
iv)Whether suitable for pipe of size 80mm dia
v)No. of contacts & spare contacts (NO & NC)
d)Fire Detectors/ Linear Heat Detectors
iii)Quantity Required
iv)Method of Fixing
v)Effective heat sensing area
vi)Temperature recommended for effective heat sensing
vii)Number of contacts NO/NC
iv)Method of mounting
iii) No. of cores & size.
4 Time of operation
Transformer Tank Explosion Prevention Fire Protection
a. For system activation
b. For reduction of pressure in the tank/for extinction of fire, by nitrogen release
5) Whether details literature/ drawings furnished
6) Details of Pre-commissioning tests to be conducted
7) Any other technical details not covered above.
Place Designation
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
BIDDERS NAME AND ADDRESS ALONG WITH GSTIN NUMBER
GUARANTEED TECHNICAL PARTICULARS
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Technical Parameters Remote Terminal Unit
General Requirements
1.01 Name of the manufacturer
1.02 Type of RTU
1.05.1 Analog Inputs
1.06 Communication Port
1.08 Suitability
1.09 Site Survey
1.1 Functional Requirements
1.11 Programmable Logic Capability
1.12 Communication Interface
1.15 Intelligence level
1.16 Expandability
1.17 Communication Media
1.18 Slave Mode
1.19 Scan Groups
1.2 Exception Reporting
1.21 Time Synchronisation
1.22 Power Supply
1.23 P/S Protection
1.24 Power Failure
1.25 Grounding and Protection against EPR
1.26 Redundancy
1.27 Multi Drop
1.28 DDTA(Data Delivery Time Analysis)
1.31 RTU Address
1.32 I/O Requirements
1.32.01 Analog Input
1.32.01.A.a Interface
1.32.01.A.b Maximum No. of MFTs in Daisy Chain
1.32.01.A.c Wiring
1.32.01.A.d Supply
1.32.01.A.e Outputs
1 System Volts in kV
System Current in A
2 System Volts THD %
System Current THD %
3 Volts L1-N in kV
Volts L2-N in kV
Volts L3-N in kV
4 Volts L1- L2 in kV
Volts L2- L3 in kV
Volts L3- L1 in kV
5 Volts L1-THD %
7 Current L1-Thd %
Current L2 -Thd %
Current L3 -Thd %
8 Neutral Current
10 kWh (7 digit Resolution)
11 kVArh (7 Digit Resolution)
13 MW Maximum Demand
Current Maximum Demand
14 Primary Current
15 Demand Integration Time
17 Pulse output Durations
Pulse Rate Devisors
19 RS-485 Parity
20 Mod-Bus Address
22 Max Voltage:
Short Duration:
Short Duration:
26 Max. Burden:
29 Measuring Ranges:
31 Up Date time
34 Operating Temp
Relative Humidity
1.32.02 A/D Converter
1.32.03 Digital Inputs
1.32.04 Status Input Requirements
1.32.05 Single Contact Digital Status input (SS)
1.32.06 Double Contact Digital Status input points (DS)
1.32.07 Three State Status
1.32.09 Binary Coded Decimal Input (BCD)
1.32.10 Binary Word Input
1.32.11 Digital Outputs (D/O)
1.32.12 Two State DCO
1.32.13 Two State Momentary Control Relay
1.32.14 Latching Contact Output
1.32.15 Control Security
1.32.16 Rise/Lower Pulse Outputs
1.32.17 Digital Word Output
1.33 Maintenance Port
1.34 Support Facilities
1.35 Remote Downloading to RTU
1.36 Maintenance Support
1.37 Interface Cabinets
1.38 Enclosures
1.39 Interconnections
1.4 Terminal Blocks
1.43 Noise Level
1.44 Environmental
1.45 Critical Up time
1.47 Maintainability
1.54 Initialization/Restart
1.55 Monitoring
1.57 Diagnostics
1.58 Interposing Relay/Opto Couplers/Opto Isolators
1.59 DC transducer
2.02 Current Cables
2.03 Voltage Cables
2.04 Signal Cables
2.05 Control Cables
2.06 Supply Cables
3 RTU INSTALLATIONS
3.01 Power Supply
3.02 LT-AC Panel
3.03 Positioning
3.05 RTU Ground
3.06 Wiring Diagrams
3.07 Circuit Diagram
3.08 Terminal Block
3.09 Interface to Communication Equipments
3.11 Inspection
3.12 Scheme diagram
Name of the Company
CHAMUNDESHWARI ELECTRICITY SUPPLY CORPORATION LIMITED
Bid Enquiry No. CESCOM/2025-26/EL/WORK_INDENT485
Establishing 2x5 MVA, 33/11kV GIS sub-station at Malai Mahadeshwara Hills, in Hanur Taluk, Chamarajanagara District and construction of 33kV S/C Line for a distance of about 22.34 km from existing 66/33/11kV Cowdally Sub-Station
TECHNICAL DATA SHEET
BIDDERS NAME AND ADDRESS ALONG WITH GSTIN NUMBER
GUARANTEED TECHNICAL PARTICULARS
(Bidder should indicate the guaranteed technical data of all equipments/materials for each type of rating separately)
Technical Parameters UPS with Battery
General Requirements
1.01 Name of the manufacturer
1.02 Supply Voltage for UPS
1.03 Operating Frequency
1.04 Rectifier Module
1.05 Inverter Specification
1.06 Protection
1.07 Output Indications
1.09 Panel Meters
1.1 Bypass Arrangements
2 Isolation Transformer
2.02 Electrical Specification
2.02.01 Power Rating
2.02.03 Cooling
2.02.04 Winding
2.02.05 Input Supply
2.02.07 Transformation Ratio
2.02.08 Protection
3.01 Battery Sets
3.05 Battery Stand
3.06 Accessories
3.07 Charging and Discharging
3.08 Commissioning
Place Designation
Name of the Company
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