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Tender Value
₹20.7 Cr
EMD Value
₹20.7 L
Closing Date
8 Jul 2026, 8:30 pm
Karnataka Power Transmission Corporation Limited
Combined Package for, Work A Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Substation in Bengaluru South Taluk, Bengaluru Urban District. Work B Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Substation in Bengaluru East Taluk, Bengaluru Urban District. Work-C Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
306934
KPTCL/2026-27/SS/WORK_INDENT3806
Open
Sub-Station
KPTCL CGM Tech Corporate Office Bengaluru
4 documents required · 4 mandatory
Documentary proof for clause no.2.2 (I) of ITT, such as P.O, LOI/LOA, DWA, Work done, Performance Certificates issued by the end users not below the rank of Executive/ Divisional Engineer of Lead Bidder & Consortium partner (In case of Consortium)
Documentary proof for clause no.3.2 (b)(i) of ITT, such as P.O, LOI, LOA, DWA, Work done, Performance Certificates issued by the end users not below the rank of Executive or Divisional Engineer of Lead Bidder or Consortium Partner.
Audited financial statements including Balance sheets, Profit and Loss statements, Turnover Certificate, Auditors Reports of the last five years preceding the date of bid submission of the Bidder & Consortium partner (In case of Consortium)
Bank Guarantee/Insurance Surety Bonds towards Bid Security (EMD) shall be furnished and uploaded in accordance with Cl. No. 13 of ITT
Self declarations of Lead Bidder & Consortium partner (In case of Consortium) in respect of Litigation, dis qualification due to non-performance, Risk & cost clause and Restriction on border sharing as specified in Annexure XVI& Annexure XVII as per Clause No.2.4of ITT
Documentary proof for Clause No: 3.6 of ITT: Assessed available tender capacity such as, Maximum value of works executed (KPTCL & Non-KPTCL) in any one year during the last five years taking into account the completed as well as works in progress and 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 countersigned by the Employer in charge, not below the rank of an Executive Engineer or equivalent as sought in Note of the said clause in the prescribed format as in clause No: 1.5 of Qualification Information of the Bidder & Consortium partner (In case of Consortium)
Details of Works on hand and Ongoing contractual commitments of the Bidder & Consortium partner (In case of Consortium)
Bankers Certificate of the Bidder & Consortium partner (In case of Consortium) for assessing the Liquid Assets (Letter of Credit/ Certificate from banks meeting fund requirement) to assess Lines of Credit and availability of other Financial resources
Type test reports as per tender documents / technical specifications
Consortium Agreement (In case of Consortium).
Power of Attorney in favour of all the persons signing the documents, Power of Attorney for Consortium, combined power of attorney signed by the signatories of all the members of consortium as an evidence of authorization for nominating leader (Prime Bidder) of consortium
Copies of original documents defining the Constitution or Legal Status, place of Registration and Principal place of Business of the Bidder, written Power of Attorney to the Signatory of the Bid to commit the Bidder to the Contract along with the resolution passed in this regard by the Board of Directors / all the Partners of the Firm
Certificate of Incorporation of the Individual/ Consortium or any relevant document in respect of Partnership/Proprietorship firms as per the tender document
The bidder and Consortium Partner(in case of Consortium) should have valid GST registration with GSTIN number, PAN Card and ISO Certificates. Note: The successful Bidder and his consortium partner who have GST registration in other States should have GST registration in the State of Karnataka mandatorily at the time of execution of the Contract Agreement
No Deviation Certificate
Letter of Undertaking as in Annexure-V
The Qualification and experience of key Personnel proposed for carrying out the Work
Description of the Tools & Plant available with them for execution of the Work
An undertaking to source the supply of equipment/material from KPTCL approved Vendors only as per the QR for Vendor registration, available in the KPTCL website i.e., https://kptcl.karnataka.gov.in, Link Tender and Procurement - application for Vendor registration etc
An undertaking to source the supply of equipment/material from Vendors who meet the eligibility clauses regarding restriction on procurement from a country which shares land border with India as specified in Annexure- XVII as per Clause No. 3.9.7 of ITT above
All self -declarations, legally enforceable deeds & Undertakings as per terms and conditions of the tender
All details as called for in the Technical specifications of all the equipments/ materials of the Tender
Any other required documents as per the qualifying requirements, terms and conditions of the tender
proposed methodology and program of construction as per clause No.1.13 of Section-3-Qualification Information
Filled in Techno commercial sheet shall be uploaded along with all other QR documents. Price Offers shall be quoted in the item-wise bid Financial offer, provisioned in the e-procurement portal. In case the Prices are uploaded in/along the Techno commercial Bid, then Bid will be summarily rejected. The Techno-commercial sheets shall be uploaded in KPTCL excel formats only.
Information on litigations in which the Tenderer is involved as per prescribed format as at 1.12 of Qualification Information
The Tenderer shall upload declarations for Deviations, if any as per Schedule-5 and Schedule-6 of the Techno Commercial sheets
As per Clause No. 2.3 of ITT above, Bidder shall upload valid Super Grade Electrical Contractors License issued by the Govt. of Karnataka OR valid Form J-1 Verification Letter issued by Chief Electrical Inspectorate, Govt. of Karnataka to Other State Electrical Contractor License Holder for the highest system voltage specified in the tendered work of Lead Bidder & Valid Super Grade Electrical Contractors License OR valid Form J-1 Verification Letter issued by Chief Electrical Inspectorate, Govt. of Karnataka to Other State Electrical Contractor License Holder for the highest system voltage specified in the tendered work OR Class-A/Class-1 Electrical Contractors License issued by any State/Central Government in India of Consortium partner (in case of Consortium) as on the date of bid submission
In case the consortium partner is not possessing SGL OR valid Form J-1 Verification Letter issued by Chief Electrical Inspectorate, Govt. of Karnataka to Other State Electrical Contractor License Holder for the highest system voltage specified in the tendered work but having Class-A/ Class-1 Electrical Contractors License, Bidder shall upload an undertaking from the Consortium partner agreeing that, in case the Lead Bidder failed to execute the contract, the consortium partner shall get the work done by the Agency who is having valid SGL issued by GoK OR valid Form J-1 Verification Letter issued by Chief Electrical Inspectorate, Govt. of Karnataka to Other State Electrical Contractor License Holder for the highest system voltage specified in the tendered work and have executed similar nature of work earlier after duly obtaining approval from KPTCL
Form of Tender as in Section -4, Format of Annexures
₹7,500
₹20.7 L
15 Jun 2026
15 Jun 2026
9 Jul 2026
16 Jun 2026
16 Jun 2026
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
TECHNO - COMMERCIAL SHEETS
NOTE* For detailed scope of the work please refer Bid Documents.
BIDDERS TO READ CAREFULLY
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 CHIEF ENGINEER ELECTY., CGM(Tech), KPTCL, BENGALURU 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 (SCHEDULE-16). 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 Insurance Regulatory and Development Authority of India (IRDA) TOWARDS BALANCE EMD/BID SECURITY. (For the balance EMD above Rs. 1Lakh) (SCHEDULE-17) - 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 KPP 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 (SCHEDULE-18). 5) CONSORTIUM AGREEMENT (IF APPLICABLE-SCHEDULE-19) 6) POWER OF ATTORNEY (SCHEDULE- 20). 7) ANY OTHER AGREEMENTS /UNDERTAKINGS/SELF DECLARATIONS SPECIFIED IN THE TENDER.
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
BID PROPOSAL SHEET
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidder's Name & Address alongwith GSTIN no. :
Bid Proposal Reference :
Person to be contacted :
E-Mail Address:
The Chief General Manager(Tech)
Corporate Office, KPTCL,
Indhana Bhavan, Bangalore - 560 009.
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
a) * We have submitted bid as individual Bidder. (Indicate Name of the Individual Bidder)
b) * We have submitted bid in Consortium with the following Bidders. (Key in Consortium)
Name of the Consortium Partner 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
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 Rs19.73Lakhs ( above Rs.1 Lakh) in the form of Insurance Surety Bond (ISB) issued by Insurance Company authorized by Insurance Regulatory and Development Authority of India (IRDA) 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 Insurance Regulatory and Development Authority of India (IRDA) (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 Thirty (30) 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
Karnataka Power Transmission Corporation Limited
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
FILL ONLY IN LIGHT BLUE COLOURED CELLS.
Bidder's Name & Address alongwith GSTIN no. : To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
We declare that in terms of Clause No. 11 of ITT, 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 Taxes (Excluding GST) & Duties).
Total Lumpsum Price : ( In Figures) Note: Fill as "YES" against this column in case Prices are indicated in the Item-Wise Bid Financial Offer in figures
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE - 2 (1 of 2)-SUMMARY OF PRICE COMPONENTS
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
FILL ONLY IN LIGHT BLUE COLOURED CELLS.
Summary of Price Components
Bidder's Name & Address alongwith GSTIN no. : To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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. (Fill as "YES" against the above Price columns in case Prices are indicated in the Price templates)
A Material / Equipment Price (including Packing & Forwarding charges) in the Scope of the Contractor
i) Ex-works including all taxes & duties [As per schedules -
ii) Freight and Insurance Charges (Not Applicable) [As per schedules - 3A(i) for Station & 3B(i) for Line]
iii) Total FOR site price (i+ii)
B Mandatory spares price (including packing & forwarding charges)
i) Ex-works including all taxes & duties
ii) Freight and Insurance Charges(Not Applicable) (As per schedule -4)
iii)Total FOR site price (i + ii)
C Supply portion total FORD price [A+B]
D Erection portion:
i) Total charges for Erection, Testing & Commissioning of all Supply items [as per schedules-
ii) Total charges for entire civil works [ as per Schedules-
iii) Total civil works, erection, Testing and commisioning charges (i)+(ii)
E Total Bid Price = C+D(iii) In figures : Rs.
Total Bid Price in Figures : Rs.
Total Bid Price in words : Rupees
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE - 2 ( 2 of 2 ) - TAXES(Excluding GST), DUTIES & OTHER LEVIES
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Fill IN LIGHT BLUE COLOURED CELLS.
Bidder's Name & Address alongwith GSTIN no. : To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
Estimates of Indian Taxes (Excluding GST), Duties and Levies included in the Total Bid Price are as follows:
SL. No. Description of Applicable Tax (Excluding GST) / Duty / Levy
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 (Excluding GST) along with the details in the "Rate" Column.
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE - 2A : SCHEDULE OF DISCOUNT
SHEET FOR TECHNOCOMMERCIAL OPENING (UN - PRICED)
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
FILL ONLY IN LIGHT BLUE COLOURED CELLS.
Bidder's Name & Address alongwith GSTIN no. : To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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
Percentage of discount Amount (in Rs.) (Fill in as 'YES' in case Prices are indicated in the Item-Wise Bid Financial Offer) Remarks
I Supply Schedules a) Ex-works prices
b) Freight & Insurance (Not Applicable)
II Erection Schedules
III Civil Works Schedules
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE- 2 B - STATEMENT OF COMMERCIAL TERMS AND CONDITIONS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 Amount, BG No. and date, Name and address of the bank issuing the BG, validity of the BG 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 Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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.1Lakh 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.1Lakh by Bank Guarantee/Insurance Surety Bond (ISB)
4 Validity of the Bid.
5 Qualifying Requirements.
6 Financial capability
8 Taxes & Duties.
9 Completion Schedule
10 Defects Liability Period/Guarantee
11 Payment Terms
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE - 3A(i) - Price Breakup for - Supply portion
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidder's Name & Address alongwith GSTIN no. :
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
SUPPLY PORTION: TOTAL Indicate whether "Own manufactured Iem" or "Bought Out Item" Indicate country of Origin
Sl No. Name of the Equipment/Materials Unit Work-A 66/11kV South City SS Work-B 66/11kV Shobha City SS Work-C 66/11kV Telecom Layout SS
SS1 POWER TRANSFORMERS: 31.5 MVA,66/11 kV class, 3Ph, 50Hz, Core Type, 2 winding Delta / Star, Vector Group: Dyn11, OLTC, ONAN/ONAF with Fan control cubicle RTCC Panel, Numerical RTCC Panel with optic fibre temperature sensor, first filling of oil and 10%spare oil in non-returnable drums, etc., complete with terminal connector suitable for Drake/Moose ACSR on primary side of transformer and copper flat on 11kV and neutral side as per technical specification. Note: Copper Flats required for Power Transformers shall be supplied along with the Transformers as per Technical Specifications. No 1.00 2.00 1.00 4.00
SS2 FIRE FIGHTING EQUIPMENTS: Supply,Erection, Testing & Commissioning of Nitrogen Injection fire extinguishing system as per the recommendation of the supplier of the fire fighting system for Power Transformer below 100MVA as per technical specifications. Set 1.00 0.00 1.00 2.00
SS3 CURRENT TRANSFORMER : Current transformer Single phase, oil filled outdoor type with rigid bimetallic terminal connectors suitable for Aluminium Rigid Bus/ Drake ACSR conductor as required, as per Technical Specicification. i)66kV Class, 40kA, CT of ratio 400-200/1-1-1A For metering : Accuracy 0.2S, Burden 10 VA For backup protection : Accuracy 5P20. Burden 30 VA For differential /Distance protection PS class, Vk=1600V & Rct. 4ohm at 400/1A, Vk=800V & Rct. 2Ohm at 200/1A No 3.00 0.00 0.00 3.00
ii) 11 kV Class, 31.5kA, NCT of ratio 2000-1200/1-1-1A for REFR protection NOTE: 1) For details refer APPENDIX-3 : Technical Parameters of current Transformers for type and rating in Section -Instrument Transformer Technical Specfication. 2) All the current transformer in each KV Class shall be of One and the same make for interchangeability and relability of performance. 3) The make & characteristic of 11kV NCT should be the same as that of the Incomer CT of 11kV switchgear. No 1.00 0.00 1.00 2.00
SS4 BUS BAR FORMATION : Drake ACSR Mtr 0.00 0.00 100.00 100.00
SS5 1.1kV class PVC insulated copper control cables of following sizes with Lugs/Ferrules/Gland as per technical specifications: i) 19 Core 2.5 Sq.mm. Mtr 100.00 550.00 300.00 950.00
vii) Copper PVC Instrumentation Cable, Armoured(Screened twisted pair Cable) 8Px0.5Sq.mm Mtr 50.00 120.00 0.00 170.00
SS6 11KV U.G. Cable with the required cable terminations as per technical Specification: a) 11kV XLPE cable, 1Cx1000Sq. mm. Aluminium cable from 66/11KV transformer LV to 11KV Switchgear. Mtrs 105.00 300.00 320.00 725.00
b) Heat shrinkable type Cable termination kits suitable for 1Cx 1000 Sq.mm XLPE cable (Indoor type) No. 3.00 6.00 4.00 13.00
c)Heat shrinkable type Cable termination kits suitable for 1Cx 1000 Sq.mm XLPE cable (Out door type) No. 3.00 6.00 4.00 13.00
SS7 Miscellaneous Items: Auxillary Relay - 3 elements suitable for C&R panels at 110kV and 66kV station for NIFPS wiring Nos 1.00 0.00 0.00 1.00
NOTE 1. Any clarifications / hard copy of drawings can be obtained from the office of the Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
2. Spacers shall be provided wherever necessary and no extra charges is payable on account of the same.
3. Supply of equipment/materials and the Erection charges shall include loading and unloading.
4. Copper Flat and GI Flat required for Power Transformers (if supply is in Bidder's scope) shall be supplied alongwith the Transformers and no extra cost is payable on this account.
5. The Bidder shall take necessary action to ensure that all the materials supplied shall be properly housed to ensure satisfactory commissioning.
6. The bidder shall quote same rates for common materials in all the Item-Wise Financial Bid Offer.
7. Released materials shall be transported to the nearest Major Works Store of KPTCL without any additional cost as per the directions of the Engineer in charge of the work.
8. The Bidder shall clearly indicate whether the materials/equipments are “Own manufactured” or “Bought out item”.
Place Designation
Name of Company
Karnataka Power Transmission Corporation Limited
SCHEDULE - 3A(ii) - Price Breakup for - ERECTION PORTION INCLUDING TESTING & COMMISSIONING and DISMANTLING PORTION.
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidder's Name & Address alongwith GSTIN no. :
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009.
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
ERECTION PORTION INCLUDING TESTING & COMMISSIONING AND DISMANTLING: TOTAL
Sl No. Name of the Equipment/Materials Unit Work-A 66/11kV South City SS Work-B 66/11kV Shobha City SS Work-C 66/11kV Telecom Layout SS
SE1 POWER TRANSFORMERS: 31.5 MVA,66/11 kV class, 3Ph, 50Hz, Core Type, 2 winding Delta / Star, Vector Group: Dyn11, OLTC, ONAN/ONAF with Fan control cubicle RTCC Panel, Numerical RTCC Panel with optic fibre temperature sensor, first filling of oil and 10%spare oil in non-returnable drums, etc., complete with terminal connector suitable for Drake ACSR on primary side of transformer and copper flat on 11kV and neutral side as per technical specification, including moving the Power Transformer to the Plinth. Note: The Bidder has to quote for complete scope of erection of transformer including moving the transformer from the point of unloading to the point of erection, assemblying the complete transformer, filtration of oil using filter set of the bidder to achieve the required insulation vlaue as per I.E. Specifications, erection of the complete transformer(replacement of gaskets and miscellaneous itmes if any), wiring of transformer, testing & commissioning etc. No 1.00 2.00 1.00 4.00
SE2 CURRENT TRANSFORMER : Current transformer Single phase, oil filled outdoor type with rigid bimetallic terminal connectors suitable for Aluminium Rigid Bus/ Drake ACSR conductor as required, as per Technical Specicification. i)66kV Class, 40kA, CT of ratio 400-200/1-1-1A No 3.00 0.00 0.00 3.00
ii) 11 kV Class, 31.5kA, NCT of ratio 2000-1200/1-1-1A for REFR protection NOTE: 1) For details refer APPENDIX-3 : Technical Parameters of current Transformers for type and rating in Section -Instrument Transformer Technical Specfication. 2) All the current transformer in each KV Class shall be of One and the same make for interchangeability and relability of performance. 3) The make & characteristic of 11kV NCT should be the same as that of the Incomer CT of 11kV switchgear. No 1.00 0.00 1.00 2.00
SE4 1.1kV class PVC insulated copper control cables of following sizes with Lugs/Ferrules/Gland as per technical specifications: i) 19 Core 2.5 Sq.mm. ii) 10 Core 2.5 Sq.mm. iii) 12 Core 2.5 Sq.mm. iv) 4 Core 6.0 Sq.mm. v) 4 Core 2.5 Sq.mm. vi) 4 Core 4.0 Sq.mm vii) Copper PVC Instrumentation Cable, Armoured(Screened twisted pair Cable) 8Px0.5Sq.mm Mtr 430.00 1250.00 800.00 2480.000
SE5 11KV U.G. Cable with the required cable terminations as per technical Specification: a) 11kV XLPE cable, 1Cx1000Sq. mm. Aluminium cable from 66/11KV transformer LV to 11KV Switchgear. Mtrs 105.00 300.00 320.00 725.000
b) Heat shrinkable type Cable termination kits suitable for 1Cx 1000 Sq.mm XLPE cable (Indoor type) No. 3.00 6.00 4.00 13.000
c)Heat shrinkable type Cable termination kits suitable for 1Cx 1000 Sq.mm XLPE cable (Out door type) No. 3.00 6.00 4.00 13.000
SE6 EARTH MAT FORMATION: a) Grounding of equipment with 50 x 6 mm G.I. Flat and connecting equipment to the earthmat/ground pit. Each point of earthing with all formation 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 earth connection, all the materials supplied by the contractor. Rmtrs 25.00 150.00 60.00 235.000
b) Grounding of equipment by providing cast iron pipe of 100 mm ID 13 mm thickness, 2.75 metre long with 2 part clamp out of G.I. Flat 50 X 6 mm continuously welded alround the pipe using cast iron welding electrodes as per drawing including the cost of excavation (All materials to be supplied by the contractor) Nos. 0.00 2.00 1.00 3.000
c) Supplying & fixing 450 mm dia 450 mm height 1.5" to 2" thick hume pipe collar (non ressure type) for earth pits including all lead and lifts etc.. Nos. 0.00 2.00 1.00 3.000
SE7 1) DECOMMISSIONING a) Dismantling of 20 MVA, 66/11 kV, Transformer & parts like bushings with inbuilt 66 kV CTs, releasing of oil from Transformer, etc,.complete as per direction of site Engineer(WORK-A, Work-B, WORK-C) b) Dismantling of 2x12.5 MVA, 66/11 kV, Transformer & parts like bushings with inbuilt 66 kV CTs, releasing of oil from Transformer, etc,.complete as per direction of site Engineer(WORK-B) t 40.00 78.00 48.45 166.450
c) Moving of Transformer from the plinth to the loading point as per direction of site Engineer. t/Mtr 600.00 3900.00 1162.80 5662.800
2) Releasing and re-erection of Equipments: a)Releasing and reerection of 11kV NCT mounting structure t 01/0.157 02/0.314 0.00 03/0.471
b) Releasing and reerection of 11kV Cable mounting Structure t 01/0.072 02/0.144 0.00 03/0.216
Total weight of releasing and re-erection of 11kV NCT mounting structure/Cable mounting structure. t 0.229 0.458 0.000 0.687
3) Releasing of Equipments: a) Releasing of existing 11kV NCT/11kV incomer CTs Nos 1.00 0.00 1.00 2.000
b) Releasing of exisitng RTCC panel of 1x20MVA Power Transformer No 1.00 0.00 0.00 1.000
c) Releasing of 66kV CT No 3.00 0.00 0.00 3.000
1. Any clarifications / hard copy of drawings can be obtained from the office of theThe Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009.
2. The Erection charges shall include transportaion to site, loading and unloading.
3. Released materials shall be transported to the nearest Major Works Store of KPTCL without any additional cost as per the directions of the Engineer in charge of the work.
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE - 3C(i) - Price Breakup for - Station Civil Portion.
SHEET FOR TECHNO COMMERCIAL OPENING (Unpriced)
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidder's Name & Address alongwith GSTIN no. :
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009.
BIDDERS SHALL FILL ONLY IN THE LIGHT BLUE COLOURED CELLS.
Sl. No. Specifications Unit Work-A 66/11kV South City SS Work-B 66/11kV Shobha City SS Work-C 66/11kV Telecom Layout SS Total Qty
B1 Removal, Stacking and respreading of existing jelly as per the directions of the engineer in charge of the work including all costs labour, loading, unloading, transportation etc., complete sqm 0.00 2050.00 0.00 2050.00
B2 Prime Coat over WMM/WBM Providing and applying primer coat with SS1 grade Bitumen Emulsion on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70 kg/m2 using mechanical means. sqm 0.00 2050.00 1798.00 3848.00
B3 Tack coat on Bituminous surface Providing and applying tack coat with RS1 Bituminous Emulsion using emulsion pressure distributor at the rate of 0.20 kg/m2 on the prepared bituminous surface cleaned with mechanical broom. sqm 0.00 4100.00 3600.00 7700.00
B4 Bituminous Macadam Grading - I for traffic <20 MSA Providing and laying Bituminous Macadam with 100 tph capacity hot mix plant batch type using crushed aggregates of specified grading premixed with bituminous binder VG-30 @ 3.3% by weight of mix, transported to site, laid over a previously prepared surface with mechanical paver finisher to the required grade, level and alignment and rolled as per clauses 501.6 and 501.7 to achieve the desired compaction. cum 0.00 105.00 90.00 195.00
B5 Providing and laying Bituminous Concrete with 100 TPH capacity hot mix plant batch type using crushed aggregates of specified grading, premixed with bituminous binder VG-30 @ 5.2 per cent of mix and filler, transporting the hot mix to work site, laying with mechanical paver finisher to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No. 507 complete in all respects. cum 0.00 55.00 90.00 145.00
B6 Removal of Unserviceable Soil with Disposal upto a suitable distance as directed by the Engineer incharge of work. cum 40.00 30.00 110.00 180.00
B7 Earth work excavation by manual means for drains, canals, waste weir, draft, approach channels, key trenches, foundation of Buildings & bridges and such simillar works in all kinds of soils, as per drawing and technical specifications, including setting out, shoring, strutting, barricading, caution lights, removal of stumps and other deleterious matter, excavated surface leveled and sides neatly dressed disposing off the excavated stuff or sorting & stacking the selected stuff for reuse in a radius of 50 m and lift upto 1.5 m including cost of labour, tools & other appurtenaces required to complete the work. In all kinds of soils Depth upto 1.5 m. cum 111.00 0.00 68.00 179.00
B8 Providing and laying in position Cement Concrete for levelling course for all works in foundation. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed, laid in layers not exceeding 150 mm thickness, well compacted using plate vibrators, including all lead & lifts, cost of all materials of quality, labour, Usage charges of machinery, curing and all the other appurtenances required to complete the work as per technical specifications. Mix 1:3:6 (M10) Using 20 mm nominal size graded crushed coarse aggregates cum 10.90 0.00 8.00 18.90
B9 Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain works & other parallel works from 0.50m to 3.50 m height. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers, laid in layers, well compacted using needle vibrators, providing weep holes wherever necessary, including all lead & lifts, cost of all materials of quality, confirming to the requirements of relevant IS codes, labour, Usage charges of machinery, curing, form work, centering & scaffolding and all other appurtenances required to complete the work as per technical specifications. M25 Design Mix Using 20mm nominal size graded crushed coarse aggregate (70% considered for Form work) cum 0.00 0.00 10.00 10.00
B10 Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain works & other parallel works from 0.50m to 3.50 m height. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers, laid in layers, well compacted using needle vibrators, providing weep holes wherever necessary, including all lead & lifts, cost of all materials of quality, confirming to the requirements of relevant IS codes, labour, Usage charges of machinery, curing, form work, centering & scaffolding and all other appurtenances required to complete the work as per technical specifications. M25 Design Mix Using 20mm nominal size graded crushed coarse aggregate (3% considered for Form work) cum 48.50 0.00 49.00 97.50
B11 Steel Fabrication: Supplying, fitting and placing TMT FE 550 / 550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, laping/welding joints, tying with binding wire / soft annealed steel wire and other ancilary operations complete as per drawing and technical specification All other type of structures kg 3250.00 0.00 4800.00 8050.00
B12 Providing Brick work with common burnt clay Non Modular bricks of class designation 3.5 in superstructure above plinth level in all shapes and sizes in Cement mortar 1:6 (1 cement : 6 coarse sand) including cost of all materials, labour, scaffolding and usage charges of machinery & other incidental charges complete as per the direction of engineer incharge of work. cum 13.00 0.00 13.00 26.00
B13 Providing and fixing Structural Steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete including cost of materials, labour, usage charges of machinery complete as per specifications and as per directions of the Engineer-in-Charge. kg 1430.00 0.00 200.00 1630.00
B14 Finishing walls with Acrylic Smooth exterior paint of required shade :New work (Two coat applied @ 1.67L/10 m² over and including priming coat of exterior primer applied @ 2.20 kg/10 m²) with paint of approved quality to give an even shade, after thoroughly brooming the surface to remove all dirt, dust, mortar drops and foreign matter including preparing the surface even and sand paper smooth, cost of materials, labour complete as per specifications and as per directions of Engineer-in-charge. sqm 117.00 0.00 110.00 227.00
B15 Providing 20 mm cement plaster of mix :1:6 (1 cement: 6 fine sand) to brick/stone masonary including rounding off corners wherever required smooth rendering, providing and removing scaffolding, including cost of materials, labour, curing complete as per specifications and as per directions of Engineer-in-charge For Flagging Concrete. sqm 140.00 0.00 160.00 300.00
B16 Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations and other similar works etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. cum 52.00 0.00 35.00 87.00
B17 Labour charges for welding and other allied works.Removing & re-laying of existing jelly with all lead and lift labour charges, as per the directions of Engineer-in-chage of work including stacking the materials to the appropriate work spot. (MR) Nos. 0.00 0.00 150.00 150.00
B18 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 Engineerin-charge of works as per the standard procedure. cum 0.00 0.00 45.00 45.00
B19 Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, up to 25 metre height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of Engineer-in-charge. Sqm 60.00 0.00 0.00 60.00
B20 Supply and fixing of SFRC Machin hole cover (Heavy Duty) made as per IS to suit existing damaged Machin hole cover after removing the debris from inside and outside the existing Machin hole etc. with all lead and lifts. Heavy Duty. each 1.00 0.00 0.00 1.00
B21 Providing and fixing in position 25mm dia dowel bars precoated with anticorrosive epoxy paint of required Dia. 600 mm. Long and at 300 mm. C/C and wherever directed including handling, straightening, necessary cutting supported by TMT, chairs with proper alignment by using properly designed assembly of Bulkheads lubricating half length with bituminous paint as directed etc. complete. Nos. 16.00 0.00 0.00 16.00
1) The land will be handed over " As is where is condition".
Place Designation
Name of the Company
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE-5 COMMERCIAL DEVIATION
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Please fill Only in the Light Blue Couloured Cell.
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 KPTCL 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 Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
I/we have read each of the Clauses mentioned in INVITATION FOR TENDERS , INSTRUCTION TO TENDERERS , CONDITIONS OF CONTRACT, SPECIAL CONDITIONS OF CONTRACT and COMMERCIAL TERMS AND CONDITIONS and all the sections of Bid documents.
The following are the commercial Deviations and Variations from and exceptions to the Specifications and documents for
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
These deviations and variations are exhaustive. Except these deviations, the entire work shall be performed as per your specifications 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.
Place Designation
Name of the company
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE-6 : TECHNICAL DEVIATION
SHEET FOR TECHNO-COMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 KPTCL 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 Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
The following are the Technical Deviations and Variations from and exceptions to the Specifications and documents for
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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.
Place Designation
Name of the company
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE 7(List of special tools and tackles )
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidder's Name & Address alongwith GSTIN no. : TO,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
NOTE: 1 ) SHALL BE UPLOADED WITHOUT PRICES
Bidder's Name & Address alongwith GSTIN no. : To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
We have uploaded with our proposal the following additional information.
Sl. No. Brief Description of information Ref. and Page No.
Place Designation
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE - 9 (1 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDER'S NAME AND ADDRESS:
a) * We have submitted bid as individual Bidder. (Key in Individual Bidder ) The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
b) * We have submitted bid in Consortium with the following Bidders. (Key in Consortium )
Name of Consortium Partner Scope / Participation of each Consortium / Joint Venture Partner
(* Fill-up whichever is applicable)
1.0 GENERAL INFORMATION
The Bidder, bidding for this package are requested to complete the information in the following form.
Sl. No. Particulars Bidder Details
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. Bidder Details Indicate Yes/No For individual Bidder In case of Consortium :
Lead Bidder Consortium partner
(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 KPTCL 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 KPTCL approved vendors only as per QR for Vendor registration, available in the KPTCL website ie., kptcl.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 KPTCL 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
Section 3 : 1.3 Work performed of similar nature in the last Ten years of Bidder as per Clause No: 3.2 (b) (i) of ITT of Bidder/Lead Bidder and 2.2(I) of ITT of Consortium Partner.
Project Name Name & Address of the Employer Description of Work Voltage class Number of Sub-Stations/TBs/Augmentation/Replacement works 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
Name of Consortium Partner
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
Place Designation
Name of the Company
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE - 9 (2 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDER'S NAME AND ADDRESS: TO,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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 of a Bidder
(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) Anticipated date of commissioning
Ex-Works GST Total(Ex-works+GST)
Name of the Consortium Partner
Note:Attach Certificates from Engineers –in- Charge
B)Works for which Tenders already submitted
Description of work Place & State Name and Address of Employer Estimated value of works (Rs. Lakh) Stipulated period of Completion Date when decision is expected Remarks if any
Ex-works GST Total(Ex-works+GST)
Name of the Consortium Partner
i) 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 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 verified and certified by Chartered Accountant/ Cost Auditor. However, the Bidder has to upload the PO/Work Award copies for existing commitments and on-going works
ii) A self-declaration is to be uploaded by the bidder of both Lead Bidder & Consortium Partner (in case of Consortium) stating that "the information with regard to assessed available tender capacity (Works on Hand) furnished are correct”.
iii. Bidders shall furnish Certificate from Chartered Accountants for split details of Ex-works values and GST of Contract values of the works in the prescribed format as at Clause No. 1.5 of Section-3: Qualification Information of both Lead Bidder & Consortium Partner (in case of Consortium).
Place Designation
Name of the Company
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE - 9 (3 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDER'S NAME AND ADDRESS: TO,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
Following is the list of major supplied subsation 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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE - 9 (4 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidder's Name & Address alongwith GSTIN no. : To
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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 Consortium Member
Mention Year Turnover excluding GST (in Rs.) GST Amount (in case GST is included in Turnover) (in Rs.) Turnover including GST (in Rs.) Mention Year Turnover excluding GST (in Rs.) GST Amount (in case GST is included in Turnover) (in Rs.) Turnover including GST (in Rs.)
Names of the constituent Firm
1 Annual turn over for the last Five years Year(1) 2020-21 2020-21
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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE - 9 (5 of 5) : QUALIFYING REQUIREMENTS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDER'S NAME AND ADDRESS: TO,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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.
Lead Bidder Consortium partner
1.1 Constitution or legal status of Tenderer [Upload copy] Attach Copy
Place of Registration [Upload copy]
Principal place of business
Section - 3: 1.2 Total value of works executed (KPTCL & NON KPTCL works) and payments received in the last Five years (in Rs. Lakhs)
1.2 Total value of works executed (KPTCL & NON KPTCL works) and payments received in the last five years (in Rs. Lakhs) of both Lead Bidder & Consortium partner (in case of Consortium) Financial Year KPTCL works Non KPTCL works
Individual Bidder In case of Consortium Individual Bidder In case of Consortium
Total value of works in Rs. Lakh Lead Bidder Consortium Partner Total value of works in Rs. Lakh Lead Bidder Consortium Partner
Total value of works in Rs. Lakh Total value of works in Rs. Lakh 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, telephone number & e-mail id of the Tenderers' bankers who may provide references if contacted by the Employer:
1.9 Sl.No Name, address, telephone number & e-mail id of the Tenderers' bankers
Section 3: 1.12 Information on litigations in which the Tenderer(Lead and Consortium Partner(in case of Consortium) is involved:
Other Party(ies) Employer Details of Dispute Amount involved Remarks showing Present Status
Consortium Partner
Place Designation
Name of the Company
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE-10 (1 of 3) Details of Tools and Plants available
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDER'S NAME AND ADDRESS: To
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE 10 (2 of 3) Details of Technical staff employed
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDER'S NAME AND ADDRESS: To
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE 10 (3 of 3 )
SHEET FOR TECHNOCOMMERCIAL OPENING
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
BIDDER'S NAME AND ADDRESS:
We propose the following deployment of manpower for the substation and 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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE-11 (A) : COMPLETION SCHEDULE FOR STATION/TERMINAL BAYS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidders Name and Address: To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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 STATION PORTION
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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE-11B : COMPLETION SCHEDULE FOR TRANSMISSION LINES
SHEET FOR TECHNOCOMMERCIAL OPENING
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Bidders Name and Address: To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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 Construction of Transmission Line
Commencement Completion
1 Submission of Drawings
2 Completion of detailed engineering
3 Commencement of Manufacturing
4 Completion of Manufacturing VOID
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
Karnataka Power Transmission Corporation Limited
SCHEDULE - 12 TYPE TESTS & TEST CHARGES OF EQUIPMENT/MATERIALS
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDERS SHALL INDICATE VARIOUS TYPE TESTS IN LIGHT BLUE COLOURED CELLS
ALL THE TYPE TESTS APPLICABLE FOR EACH OF THE EQUIPMENTS SHALL BE INCLUDED.
Bidders Name and Address To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhan Bhavan, BANGALORE - 560009
SL.No Details of Equipments Type Test Test Charges ( in Rs )
1 Power Transformers:
a) 31.5MVA, 66/11kV
2 SF6 Circuit Breakers:
3 Surge Arrestors
5 Control & Relay Panels / Relay & Protection Panels
6 L.T. A.C Panel
7 Station Battery
8 Station Battery Charger
9 1.1KV Power Cables
10 1.1kV Copper Control cables
11 11kV U.G Cable
12 Insulators a) 90KN Disc Insulator Strings
13 Equipment / Station Structures
14 Aluminium pipe and Clamps
15 Hardware Materials
16 Yard lighting equipments
17 Fire Fighting equipments
18 AC DISTRIBUTION BOX
19 DC DISTRIBUTION BOX
21 Auxiliary Transformer
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 KPTCL 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 KPTCL. The above Clause is applicable for all the equipments/materials, in case, the Type Test / Special Tests, are repeated at the insistance of owner(KPTCL).
Place Printed Name
Karnataka Power Transmission Corporation Limited
Schedule -13-List of Optional Spares
SHEET FOR TECHNOCOMMERCIAL OPENING
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
BIDDERS SHALL NOTE THAT QUANTITIES INDICATED IN THE ITEM_WISE FINANCIAL BID OFFER SHALL BE INDICATED HERE ALSO.
Bidders Name and Address
To, The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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
Karnataka Power Transmission Corporation Limited
SCHEDULE - 14-Guaranteed Losses :
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidders Name and Address along with GSTIN No.: To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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.
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
31.5MVA, 66/11kV Power Transformer
Note:(i) Refer Technical Specifications (ii)The loss quoted shall be consistent in Schedule 14 and GTPs(DRS)of Power Transformer
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
LIST OF VENDORS
SHEET FOR TECHNOCOMMERCIAL OPENING
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
BIDDERS NAME AND ADDRESS To, The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
Sl. No. EQUIPMENT/ MATERIAL NAME OF THE VENDOR
VENDOR 1 VENDOR 2 VENDOR 3 VENDOR 4
1 Power Transformer 31.5MVA, 66/11kV Transformer
2 SF6 Circuit Breakers: 72.5kV
3 SURGE ARRESTERS
4 Control & Relay Panels / Relay & Protection PANELS
5 Station / Equipment Support structures
6 Aluminium pipe and Clamps
7 ACSR CONDUCTOR
9 Solid Core Insulator
10 Disc Insulator Strings
11 Insulator Hardware Clamps & Power connectors
12 Auxiliary Transformer
14 1.1kV POWER CABLES
15 AC DISTRIBUTION BOX
16 DC DISTRIBUTION BOX
18 BATTERY CHARGER
19 CONTROL CABLES
20 11KV Switchgear
21 11kV UG CABLE
22 FIRE FIGHTING EQUIPMENTS
23 Illumination Equipments / Fixtures
25 Tower Accessories
26 Insulator Hard Wares
27 Conductor Accessories
28 Earth Wire Accessories
Note : Any Other Materials name & its vendors are to be entered.
Place Designation
Name of the Company
SCHEDULE-16 : NO DEVIATION CERTIFICATE (ANNEXURE-I)
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
SCHEDULE-17a FORM FOR BID SECURITY/EMD (ANNEXURE-II) (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: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 CHIEF GENERAL MANAGER (TECH),KPTCL BANGALORE 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 Karnataka Power Transmission Corporation
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.
Karnataka Power Transmission Corporation Limited
SCHEDULE-17b FORM FOR BID SECURITY/EMD (ANNEXURE-II) (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: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Ref No. 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 Karnataka Power Transmission 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.
Karnataka Power Transmission Corporation Limited
SCHEDULE-18 PROFORMA OF LETTER OF UNDERTAKINGS (ANNEXURE-V)
SHEET FOR TECHNOCOMMERCIAL OPENING
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 KPTCL 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.
Karnataka Power Transmission Corporation Limited
SCHEDULE-19 CONSORTIUM AGREEMENT (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) (ANNEXURE -XIII)
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
NOTE: SCHEDULE DULY SIGNED BY THE AUTHORIZED PERSON SHALL BE UPLOADED IN E-PROCUREMENT PORTAL.
CONSORTIUM AGREEMENT AMONGST M/s M/s
For Bid Specification No. OF KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
This consortium agreement executed on this day Month of Two thousand Twenty Five
amongst M/s a company incorporated under the laws of (Country) and having its registered office at
(hereinafter called the "Lead Company" which expression shall include its successors ,executors and permitted assigns),
M/s a company incorporated under the laws of (Country) and having its registered office at
(hereinafter called the "Constituent Company" which expressions shall include its successors,executors and permitted assigns)
for the purpose of making a bid and entering into a contract (In case of award) against the specification no.
For NAME OF THE WORK
for Karnataka Power Transmission Corporation Ltd. having its registered office at Indhana Bhavan , Bangalore 560 009 , Karnataka (hereinafter called the "Owner"). The leader of the consortium shall abide by the general terms and conditions specified by the Purchaser. WHEREAS the Owner invited bids as per the above mentioned specifications for the design, manufacture, supply and erection, testing and commissioning of Equipments/Materials stipulated in the bidding documents under subject package
NAME OF THE WORK
AND WHEREAS Section-I ( Volume-1: Clause No. 11:- Qualifying Requirement), forming part of the bidding documents, stipulates that a consortium meeting the requirements of Section-I, ( Invitation of Bid) applicable may bid, provided the Consortium fulfills all other requirements of specification and in such a case, the Bid shall be signed by the members so as to legally bind the members and who will be jointly and severally liable to perform the Contract and all obligations hereunder.
The above clause further states that the consortium agreement shall be attached to the bid and the contract performance guarantee will be as per the format enclosed with the bidding document without any restriction or liability for either party.
AND WHEREAS the bid has been submitted to the Owner vide proposal No dated
by Lead Company based on the Constituent agreement between all the consortium under these presents and the bid in accordance with the requirements of Specifications (Qualification Requirements).
NOW THEREFORE THIS UNDERTAKING WITNESSETH AS UNDER:
In consideration of the above premises and agreements all the partners to this consortium members do hereby now agree as follows:
1 In Consideration of the award of the Contract by the Owner to the Consortium members, we , the members to the consortium agreement do hereby agree that M/s
shall act as Lead Company and further declare and confirm that we shall jointly and severally be bound up to the Owner for the successful performance of the contract and shall be fully responsible for the design, manufacture, supply and successful performance of the equipments in accordance with the Contract.
2 In case of any breach of the said contract by the Lead company or other constituent of the Consortium agreement, the Lead company do hereby agree to be fully responsible for the successful performance of the contract and to carryout all the obligations and responsibilities under the contract in accordance with the requirements of the Contract
3 Further, if the Owner suffers any loss or damage on account of any breach in the contract or any shortfall in the performance of the equipment in meeting the performance guaranteed as per the specification in terms of the contract, the Lead company of these presents undertake to promptly make good such loss or damages caused to the Owner, on its demand without any demur. It shall not be necessary or obligatory for the Owner to proceed against Lead Partner to these presents before proceeding against or dealing with the other Partner (s).
4 The Financial liability of the members of the consortium agreement to the Owner, with respect to any of the claims arising out of performance or non-performance of the obligations set forth in the said agreement, read in conjunction with the relevant conditions of the contract shall, however not be limited in any way so as to restrict or limit the liabilities of any of the members of the agreement.
5 It is expressly understood and agreed between the members to this consortium agreement that the responsibilities and obligations of each of the partners shall be as delineated hereunder (To be incorporated suitably by the member to this agreement). However, each member of the consortium will be severally and jointly responsible for the faithful performance of the contract. It is further agreed by the member that the above sharing of responsibilities and obligations shall not in any way be a limitation of joint and several responsibilities of the members under this contract.
Sl.No. Name of the Lead Bidder/Consortium Partner. Scope of the work/Participation
We further declare ourselves bound to execute our scope of work/participation as stated above;
6 This Consortium agreement shall be constructed and interpreted in accordance with the laws of India and the courts of Bangalore shall have the exclusive jurisdiction in all matters arising there under.
7 7) In case of an award of a Contract, we the Consortium members do hereby agree that we shall be jointly & severally responsible for the works respectively executed and Lead company shall furnishing a contract performance security from a bank/Insurer in favor of the PURCHASER in the forms acceptable to purchaser for value of 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).
8 It is further agreed that the Consortium agreement shall be irrevocable and shall form an integral part of the contract, and shall continue to be enforceable till the owner discharges the same. It shall be effective from the date first mentioned above for all purposes and intents.
IN WITNESS WHEREOF the partners to the Consortium have through their authorized representatives executed these presents and affixed Common seals of their companies, on the day, month and year first mentioned above.
WITNESS for Lead Company
(Signature) (Signature of the authorized representative)
(Name in Block Letters) (Name)
Designation (Designation)
Common Seal of the Company
2 ( For Constituent 1)
(Signature of the authorized representative)
(Name in Block Letters) (Name)
Designation Common Seal of the Company
Karnataka Power Transmission Corporation Limited
SCHEDULE-20a POWER OF ATTORNEY (ANNEXURE-XI)
(For Individual Bidder or Lead Parnter of Consortium)
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 :
Karnataka Power Transmission Corporation Limited
SCHEDULE-20(b) POWER OF ATTORNEY (ANNEXURE-XV)
(FOR CONSORTIUM MEMBER)
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 :
Karnataka Power Transmission Corporation Limited
SHEET FOR TECHNOCOMMERCIAL OPENING (UN - PRICED)
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
Bidders Name and Address
To, The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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
KARNATAKA POWER TRANSMISSION CORPORATION LIMITED
SCHEDULE -22 - Check List
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
BIDDERS NAME AND ADDRESS To,
The Chief General Manager(Tech), Corporate Office, KPTCL, Indhana Bhavan, BANGALORE - 560009
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 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 & b Proforma for Bid guarantee
Schedule 18 Proforma for letter of undertaking
Schedule 19 Consortium Agreement
Schedule 20a & 20b Power of attorney for Individual Bidder / Lead Partner of Consortium and Consortium Member
Schedule 21 Guaranteed Declaration
Schedule 22 Check List
DRS 1-20 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 Any Other (Please Specify)
To be Uploaded Any Other (Please Specify)
To be Uploaded Any Other (Please Specify)
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 31.5MVA, 66/11kV Power Transformer
1 Name of the Manufacturer and country of origin
2 Reference standard
3 Service [Indoor/outdoor]
4 Continuous rating under service conditions specified in IS-2026 Part-I, 2011 Clause No.1.1 : HV
a. 1. With ONAN cooling - MVA
2. With ONAF 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 over the maximum yearly weighted average ambient temperature
9 Flux density at rated voltage and rated frequency in tesla
10 Temperature rise of top oil, oC by the thermometer (above Max. Ambient Temperature).
11 Temperature rise of winding measured by resistance (above Max. Ambient Temperature).
i. With ONAN cooling oC
ii. With ONAF cooling oC
iii. 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 Cl. No. 1.2.0.1]
12 No. of windings
13 Connections HV
14 Connection Symbol and vector group
i. Type of tap changer
ii. Tap step (percent)
iii. Total tap range (+) percent to (-) percent
iv. Tappings provided at
v. Type of regulation :
Constant flux regulation
Variable flux regulation
Combined regulation
vi)Insulation level of tap changer
16(A) Magnetization data at no load, at rated frequency
i. Current in Amps
ii. Power factor
iii. Loss in KW (core loss + dielectric loss)
iv. Max. flux density in lines/sq.cm.
a At 90% rated no load voltage
b At 100% rated no load voltage
c At 110% rated no load voltage
d 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. I2 R 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 winding temperature on rated MVA base. HV to LV
i. At normal tap in %
ii. At max. voltage tap in %
iii. At min. voltage tap in %
19 Reactance at rated current and frequency and normal tap on rated MVA base:
HV to LV - in %
20 Zero sequence impedance at reference temperature of 75oC at principal tap ………in %
21 Resistance at 75 oC
HV winding in Ohms in %
LV winding in Ohms in %
22 Efficiency at 75oC winding temperature 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 ………in %
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 in KA & duration in seconds.
b. Short time thermal rating of HV winding in KA & duration in seconds.
26 Permissible overloading - HV
27 Test voltages HV LV
i. Lighting impulse withstand kV (peak)
ii. Power frequency voltage withstand kV (ms)
iii. Switching impulse withstand kV (peak)
28 Partial discharge level at 1.5Um / √3 kVrms (pC)
29 RIV at 1.1 times minimum phase to ground voltage
31 Noise level when energized 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
a. Core with clamping (Kg)
b. Winding with insulation (Kg)
c. Core & Winding (Kg)
d. Tank & Fittings with accessories (Kg)
e. Oil required for first filling (Kg)
f. Untanking weight (Kg)
g. Total weight with oil weight & fitting (Kg)
h. Weight of total insulation (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 at Principal Tap Tesla :
d. Flux density at 110% of rated voltage and frequency at Principal Tap Tesla :
e. (i) Material of core lamination
(ii) Thickness of core lamination (mm)
f. Approximate core weight (please indicate core weight only)
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
d. Type of windings
e. Winding insulation Type and class Graded or ungraded
f. i. Insulating material used for :
1. Regulating winding
3. HV TAP WINDING
ii. Between HV and TAP WDG 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. Minimum 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. (i) Track gauge required for the wheels-longitudinal axis & transverse axis
(ii) Size of rail recommended for the track
4 Details of painting at works and site
5 (a) Minimum clear height for lifting tank cover and for lifting core & windings from tank (mm) (untanking height).
(b) Minimum clear height for lifting (mm)
II. Bushings - HV
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. Breadth in mm
c. Height in mm
vi. Transformer will be transported with oil / gas
7 Details of Bushings HV LV
b. Rated voltage class - KV
c. Rated current - Amps
d. One minute dry withstand power frequency voltage - kV (ms)
e. One minute wet withstand power frequency voltage - kV (ms)
f. (i) 1.2 / 50 micro sec. Lighting impulse withstand voltage - kV (Peak)
(ii) Switching surge withstand test voltage kV (peak)
g. (a) Creepage Distance in air
(b) Creepage Distance (protected)
h. Quantity of oil in bushing and specification of oil used (Kgs)
i. Whether test tap is provided
j. Weight of assembled bushing
k. Phase to earth clearance in air of live parts at the top of bushing.
l. Minimum clearance (mm) In Air
Between phases Phase to ground
m. Partial discharge level
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 (LxBxH)
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 (should be SCADA Compatible)
c. Power flow (uni-directional or bi-directional 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 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.
w. OLTC Routine test shall be conducted on each Transformers.
i) Mechanical Endurance Test (Min. 1000 operations)
ii) Sequence Test
iii) Pressure Test
iv) Vacuum (Helium) Test
v) Auxiliary Circuit Insulation test
x. OLTC Drive Mechanism Box: Make & Type
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 (a) Type of oil level indicator
(b) 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 contact
d. Current rating of each contact
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 dehydrating 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
i. Drain valves - mm - No.
ii. Filter valves - mm - No.
iii. 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 Lifting jacks
a. Governing standard
b. No. of jacks in one set
d. Capacity (tonnes)
g.Height in closed position (mm)
h.Mean diameter of thread (mm)
24 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 – N-dm Analysis
6. Details of oil preserving equipment offered.
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
ISOLATORS AND TERMINAL CONNECTORS
(Bidder to indicate technical data for each type of rating separately)
Isolators and Terminal connectors ratings
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
ASCR Conductor ASCR Conductor ASCR Conductor ASCR Conductor
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 Insulators
1.00 POST INSULATORS 11kV
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 66kV
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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)
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 9KV
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 KPTCL 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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 KPTCL 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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 VOID
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
GUARANTEED TECHNICAL PARTICULARS FOR 11KV 400 A, SPECIAL (ROSTERING) G.O.S
Sl. No. Particulars 400 A, SPECIAL (ROSTERING) G.O.S 800A / 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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 For 20MVA, 66/11kV Power Transformer
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 , 12.5MVA, 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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
TECHNICAL DATA SHEET
GUARANTEED TECHNICAL PARTICULARS FOR CIRCUIT BREAKERS
(Bidder is to indicate technical data for each type of rating)
Circuit Breaker Rating 72.5kV
a. Name of the Manufacturer
b. Country of Manufacture
c. Type of Circuit Breaker
d. Manufacturer's type designation
e. Standard Applicable
f. Rated Voltage (kV ms)
g. Rated Current :
i. Under normal condition (A)
ii. Under site conditions (A)
h. Rated frequency (Hz)
i. Number of poles
j. Whether 3 pole or single pole unit
k. Whether all the 3 poles ganged electrically or mechanically
l. Whether dead tank or live tank design
m. Type of installation
n. No. of break per pole
o. Latching Current (kA)
2 Guaranteed Ratings
a. Rated short circuit breaking current
i. Symmetrical component at highest system voltage (kA)
ii. DC Component (%)
iii. Asymmetrical breaking current at highest system voltage (kA)
b. Rated Making Capacity
i. At higher rated voltage (kAp)
ii. At lower rated voltage (kAp)
c. i. Maximum Total break time under any duty condition for any current up to rated breaking current with limiting conditions of voltage and pressure (ms)
ii. Rated breaking time (ms)
d. Closing time (ms)
e. Minimum opening time under any condition with limiting voltage and pressure (ms)
f. Maximum opening time under any condition with limiting voltage and pressure (ms)
g. Maximum close open time under any condition with limiting voltage and pressure (ms)
h. First pole to clear rating
i. Short time current rating (kA) for 1 Sec.
j. Rated operating duty
k. Maximum breaking capacity under kilometric faults and rated TRV characteristic (kAp)
l. Maximum breaking capacity under phase opposition (kAp)
m. Maximum line charging breaking current with temporary over voltage up to 1.4 p.u. (A)
n. Maximum over voltage (p.u.) on switching transformer on no load and corresponding charging current
o. Maximum period between closing of first contact & last contact in a pole (ms)
p. Maximum pole discrepancy (ms)
q. Maximum arc duration and corresponding current under lockout pressure.
r. Small fault current breaking capacity (kAp)
s. Pre-insertion resistor (if applicable)
i. Value / pole (Ohms) with tolerance
ii. Minimum and Maximum duration of insertion per pole (ms)
iii.Thermal rating for the c-1m-o-co-2m-c-1m-o-co for terminal fault considering maximum resistance and time setting.
iv. Thermal rating for the same duty as (iii) above for reclosing against trapped charges.
t. Maximum temperature rise for main contacts over design ambient temperature of 50oC
u. Rated voltage & pick up range for trip coil (V)
v. Rated voltage & pick up range for closing coil (V)
w. Rated pressure and limits of pressure of operating mechanism
x. Rated pressure and limits of pressure of extinguishing medium
y. Minimum dead time for
i. Three phase reclosing (ms)
ii. Single phase reclosing (ms)
z. Data of restriking voltage
i. Amplitude factor
ii. Phase factor
iii. Natural frequency
iv. Rate of rise of restriking voltage
3 Dielectric withstand of complete breaker
a. One minute dry & wet power frequency withstand voltage
i. Between live terminal and ground (kV rms)
ii. Between terminals with breaker contacts open (kV ms)
b. 1.2/50 micro impulse withstand test voltage
i. Between live terminals and ground (kVp)
ii. Between terminals with breaker contacts open (kVp)
c. Corona extinction voltage (kV rms)
d. Maximum radio interference voltage (micro V) at 1.1 Ur/v3
e. Total creepage distance
i. To ground (mm)
ii. Between terminals (mm)
4 Operating Mechanism
a. Type of operating mechanism for
b. Manufacturer's type designation
c. Normal power consumption (W) at rated voltage
ii. Closing coil
4.1 Pneumatic operating mechanism
a. Rated operating pressure (kg/sq.cm)
b. Range of pressure for (kg/sq.cm)
c. Air Consumption at rated pressure for
i. Closing (m3)
ii. Opening (m3)
iii. Close-open (m3)
d. Pressure drop/meter length of piping
e. Number and Capacity (m3) of breaker local air storage receivers
f. No. of close operations for which sufficient air is available in local receiver
g. Capacity of compressor (m3/hr) and working pressure (kg/cm2)
h. Maximum time for which compressor can operate continuously (min)
i. Time to fill
i. Air receiver after one CO operation (min)
ii. For making up of losses occurring in hours (min)
j. Pressure at which compressor
i. Starts (kg/cm2)
ii. Stops (kg/cm2)
k. Material of compressed air piping
l. Inner & outer dia of main piping (mm)
m. Whether interpole piping included in scope of supply
n. Manufacturer's name for
ii. Air receiver
iii. Pressure reducer
iv. Stop valves
v. Drain valves
o. Safety valve
i. Low pressure stage blow off at (kg/cm2)
ii. Intermediate stage blow off at (kg/cm2)
iii. High pressure stage blow off at (kg/cm2)
p. Safety valve opens at (kg/cm2)
q. No.of stored CO operation in breaker air receiver
r. Alarm switch closes on air receiver at (kg/cm2)
s. Lockout pressure (kg/cm2)
iii. Auto reclose
4.2 Hydraulic operating mechanism
a. Rated pressure of oil in operating cylinder (Kg/cm2)
b. Limits for pressure (Kg/cm2)
c. Quantity of oil (liter)
d. Details of arrangements to prevent change of position of breaker in the event of loss of hydraulic pressure.
e. Details of monitoring arrangement for hydraulic pressure.
f. No. of close -open operations possible after loss of AC supply to drive motor.
g. Details of hand pump set provided for emergency operation.
h. Pressure drop starting from lowest pressure at which motor starts for
i. C – operation
ii. O - operation
iii. CO - operation
iv. O - CO - operation
v. 2 - CO - operation
i. Time required to make up pressure upto loss of nitrogen pressure after
i. C – operation
ii. O - operation
iii. CO - operation
iv. O - CO - operation
v. 2 - CO - operation
4.3 Spring charged mechanism
a. Number of close open operations possible after failure of AC supply to motor.
b. Time required for motor to charge the closing spring (min).
c. Whether indication of spring charged condition provided in central control cabinet.
5 Type of Breakers
5.1 SF6 Circuit Breakers :
a. Quantity of SF6 per pole (m3) at rated pressure.
b. Guaranteed maximum leakage rate per year.
c. Rated pressure of SF6 in operating chamber (kg/cm2).
d. Limits of pressure at which breaker operate correctly (kg/cm2)
e. Standard to which SF6 gas complies.
f. Whether 20% spare SF6 gas. Stored in unused gas cylinders, included in proposal.
g. Capacity & filling ratio of containers in which SF6 gas would be shipped (m3) and the corresponding pressure (kg/cm2)
h. Whether breakers are dispatched filled with SF6 or required to be filled at site.
i. Type and make of SF6 pipe coupling used.
j. Type and make of mandatory maintenance equipment.
i. SF6 gas filling and evacuation trolley (portable)
ii. SF6 gas drying, filling, evacuating equipment and its capacity.
iii. Operating analyzer Type and make
iv. SF6 gas leak detector
k. Parameters of SF6 gas for initial filling and satisfactory operation.
ii. Dielectric strength kV/mm
iii. Acidity (ppm)
iv. Water content (ppm)
v. Oil content (ppm)
vi. Condensation temperature (oC)
vii. Resistivity (Ohm-cm)
l. Whether details of SF6 gas viz test methods, handling etc. enclosed.
m. Type and material of gasket used to ensure gas tight joints for
i. Metal to metal joints
ii. Metal to porcelain joints
n. Method of housing SF6 gas compressors and equipment
i. At Circuit Breaker
ii. In control cubicle
o. Type and make of
ii. Pressure gauge
p. Densimeter Settings
q. Minimum time interval between each make/break operation (ms)
a. Whether OGA drawing enclosed
b. Weight of complete 3 phase breaker for foundation design (kg)
c. Weight of heaviest part of breaker (kg)
d. Impact loading for foundation design
e. Seismic level for which breaker is designed
f. Minimum safety clearance from earthed objects
g. Noise level in (dB) at base of the breaker
h. Minimum clearance in air
i. Between live parts (mm)
ii. Live parts to earth (mm)
iii. Live parts to ground level (mm)
6 Constructional Details
a. Whether arcing contacts provided
b. Type and material of main contacts and arcing contacts
c. Contact pressure on main contacts (kg/cm2)
d. Contact separation in arcing position (mm)
e. Contact separation in open position (mm)
i. Main contacts
ii. PIR contacts
f. Whether pressure relief device for each of the gas chamber of SF6 CB provided
g. Rate of contact travel.
i. Opening (m/sec)
ii. Closing (m/sec)
h. Whether the making & breaking contacts are hermetically sealed
i. Type and capacity of device used to obtain uniform voltage distribution between breaks
j. Over voltage withstand capability of grading components (kV rms)
k. Number of auxiliary contacts per pole provided for Owner's use
l. Rated voltage of auxiliary contacts (V)
m. Current rating of auxiliary contacts
i. Continuous (A)
ii. DC breaking with 20 ms time constant (A)
n. Whether auxiliary contacts silver plated
o. Whether support structure included in supply
p. Height of support structure
q. Material of support structure
r. Standard to which the design of support structure conform
s. Whether foundation bolts for breakers and cabinets included in scope of supply
7 Detailed Literature
a. Whether the following are enclosed.
i. Type test reports as per IEC-56
ii. Factory test report and/or field test report incase of reactor switching duty
iii. Details of operating mechanism
iv. Drawing of breaker of support structure.
v. Calculations for compressed air plant sizing
vi. Details of SF6 gas filling, evacuating and testing plant
vii. Details of SF6 gas leak detector
viii. Precautions in use of SF6 gas
ix. Leaflets & literature bringing out salient features of equipment offered.
x. Schematic diagrams of switching mechanism for closing resistor showing the duration of insertion along with calculation for thermal rating of closing resistors.
xi. Whether drawings showing contacts in close, arc initiation, full arcing, arc extinction and open position enclosed
xii. Method of checking of Voltage distribution devices at site enclosed
xiii. Details along with a complete catalogue of operation analyzer enclosed
xiv. Data on capabilities of circuit breaker in terms of time and number of operations at duties ranging from 100% fault currents to load currents of the lowest possible value without requiring any maintenance or checks.
xv. Effects of non simultaneity between contacts within a pole or between poles and also show how it is covered in the guaranteed rated break time
xvi. Details and type of filters used in interruptor assembly and also the operating experience with such filters
xvii. Curves supported by test data indicating the opening time under close open operation with combined variation of trip coil voltage and pneumatic/hydraulic pressure.
xviii. All duty requirements specified along with adequate test reports.
CIRCUIT BREAKER - 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 Strands/conductor
10 Terminal Blocks
b. Current rating
i. Power terminals (A)
ii. Other terminals (A)
11 Space Heater Rating at 240 V AC
12 Control cabinet drawing showing the following:
a. Outline dimensions, floor opening, floor/ wall/ pedestal fixing arrangements, weights etc.
b. Front view, inside view showing the mounting arrangement of various equipment.
13 Schematic/wiring 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 vartical or horizontal
ii. Clearance from adjacent components.
iii. Distance between rows.
iv. Whether transparent protection cover provided.
CIRCUIT BREAKERS - 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. Factory 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.
CIRCUIT BREAKERS - 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 minute (kVrms) dry and wet
8 1.2/50 micro sec. impulse withstand voltage (kVp)
9 250/2500 micro sec. switching impulse withstand voltage (kV p) dry and wet
10 Corona Extinction voltage (k V)
12 Maximum allowable span (mm)
13 Cantilever Strength (kg)
14 OGA drawing enclosed.
1 Manufacturer's Name & address
2 Equipment driven by motor
4 Country of origin
7 Type of enclosure and method of cooling
8 Applicable standard to which motor generally conforms
9 Type of mounting
10 Direction of rotation as viewed from non-driving end
11 Standard continuous rating at 40 deg. C ambient temperature as per Indian Standard (KW)
12 Derated rating for specified Normal condition ie., 50 deg. C ambient temperature (KW)
13 Rated Voltage (V)
14 Rated speed at rated voltage and frequency(rpm)
15 Full load current at rated voltage and frequency (A)
16 Power factor at rated load
17 Efficiency of motor at rated voltage and frequency (with out any tolerance) at
i. Density duty point(%)
ii. 100% of full load (%)
18 Starting current (Amps) at
i. 100% Voltage
ii. 85% Voltage
a) Starting (Kg-Metre)
b) Pull up (Kg-Metre)
c) Pull Out(Kg-Metre)
20 Stator winding Insulation
i) Class & type
ii) Tropicalised
iii) Temperature rise over specified ambient of 50 deg. C ( deg. C)
iv) Method of temperature measurement
21 Stator winding connector
22 Number of star terminals brought out
23 Type of terminal box for stator leads
24 Bearing type
ii. Non Driving End
25 Type of Construction of Rotor
26 Weight of Motor
i. Stator (Kg.)
ii. Rotor (Kg.)
iii. Total Weight (Kg.)
27 Type Test Report Enclosed
Place Designation
Name of the Company
Karnataka Power Transmission Corporation Limited Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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 Lines:
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 KPTCL billing software
b. Compatibility of software provided for MRI, down loading from earlier version already supplied to KPTCL
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
Karnataka Power Transmission Corporation Limited
Bid Enquiry No: KPTCL/2026-27/SS/WORK_INDENT3806
Combined Package for, Work-A: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5MVA, 66/11kV Power Transformer at 66/11kV South City Sub-station in Bengaluru South Taluk, Bengaluru Urban District. Work-B: Augmentation of existing 1x12.5MVA & 1x20MVA, 66/11kV Power Transformers by 2x31.5MVA, 66/11kV Power Transformers at 66/11kV Shobha City Sub-station in Bengaluru East Taluk, Bengaluru Urban District. Work-C: Augmentation of existing 1x20MVA, 66/11kV Power Transformer by 1x31.5 MVA, 66/11kV Power Transformer at 66/11kV Telecom Layout Sub-station in Bengaluru North Taluk, Bengaluru Urban District, on Total Turnkey Basis, including Supply of all Materials/Equipments and Erection (including Civil Works) of all Materials/Equipments, Testing and Commissioning.
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
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