Work of Design, Supply, Erection, Testing and commissioning of new Generator Relay Panels in place of old panels for Unit No. 3 & 4 of Gandhinagar TPS.

towards payment of EMD and Tender fee are found ok, then only Technical Bid

will be opened (On-line). Tenders submitted without Tender Fee-EMD by the

firms, will be rejected without entering into further correspondence.

Submission of required documents for exemption of Tender Fee & EMD is

 The exemption in payment of Tender Fee & EMD shall be given to the,

1. Micro & small-scale enterprises which participate directly in tendering

process for the product which they are manufacturing / service which

they are providing and have Udyam registration for items / service under

2. Start-ups which participate directly in tendering process for the product

which they are manufacturing/service which they are providing and re-

PUR-F-10 ET-248

cognized by DPIIT under the Start-up India Program and has obtained

Udyam registration.

3. Organization which has registration certificate for the manufacturing

product of the tender, from Gujarat Khadi Gramodyog Board or Khadi

and Village Industries Commission(K.V.I.C)or Commissioner of Cottage

4. Board/Corporations/PSUs of the Central/State Government for their

own manufactured items.

5. State Government recognized organizations like(i) organizations for

blinds, dumb and deaf, disabled, mentally disabled persons;(ii)women's

self-help group recognized by Gujarat Livelihood Promotion Company;

which participate directly in tendering process for the product which they

are manufacturing / service which /they are providing.

1. Micro & Small Enterprises (MSEs) who participates directly in the tendering

process as Manufacturers or Service Providers, and holds a valid Udyam

Registration, are eligible for exemption from payment of Earnest Money Deposit

2. Agencies registered under Udyam in the capacity of Traders, Re-sellers, or

similar categories (i.e. other than Manufacturers/Service Providers) are not

eligible for EMD exemption.

3. Migration period for Reclassification of MSMEs: - ln case of an upward change

in terms of investment in plant and machinery or equipment or turnover or

both, and consequent re-classification, an enterprise shall continue to avail of

all non-tax benefits of the category (micro or small or medium) it was in before

the re-classification, for a period of three years from the date of such upward

 Vendor Registration with GSECL is not compulsory for submitting this tender.

PUR-F-10 ET-248

GUJARAT STATE ELECTRICITY CORPORATION LTD.

THERMAL POWER STATION, GANDHINAGAR-382

TENDER Work of Design, Supply, Erection, Testing and commissioning

of new Generator Relay Panels in place of old panels for Unit

No. 3 & 4 of Gandhinagar TPS.

1 Tender Notice

2 Important Notes (Online Only)

3 Bidder Details (Online Only)

4 Technical Bid (Online Only)

5 Price Bid (Online Only)

Annexure (1 to 15, Certificate-A, Important Instruction & Integrity Pact)

of Commercial Terms & Conditions (Online Only)

Important : Pl. ignore “ Submission of Physical Document” wherever

mentioned, i.e. either in Tender Document or Commercial Terms & Condition.

For & On Behalf of GSECL

Chief Engineer (Gen)

GSECL, TPS Gandhinagar

Download & Submitted by _______________________________

(Name of Firm with Seal)

PUR-F-10 ET-248

GUJARAT STATE ELECTRICITY CORPORATION LIMITED

Gandhinagar Thermal Power Station, Gandhinagar, India–382041.

e-mail: [email protected]; Website: www.gsecl.in

CIN:U40100GJ1993SGCO19988

(A Successor Company of Gujarat Electricity Board)

Work of Design, Supply, Erection, Testing and commissioning

Sub : of new Generator Relay Panels in place of old panels for Unit

No. 3 & 4 of Gandhinagar TPS.

CE [Generation], Gandhinagar, TPS invites “On-line Tenders” (e-tendering) for the

purchase of above subject item. Tender Papers & Specifications may be down loaded

from Web site https://gsecltender.nprocure.com (For view, down load and on line

submission) and GUVNL / GSECL web sites www.gsecl.in (For view & down load only).

“NO COURIER SERVICE OR HAND DELIVERY” will be accepted.

Tender No. ET-248

Tender Fees (Non-Refundable)

Earnest Money Deposit (EMD)

(Please refer page 1 & 2 of Tender Document)

Last Date of submission of Online [e-

tendering] tender / offer , Technical as

well as Price bid along with soft copy of all

other documents as stated here under up

to18.00 Hrs. (This is mandatory).

Only EMD/Tender Fee related physical

documents will be required from bidders

before due date. As per NIT Details

Date of opening of Online Technical bid at

15.30 hrs(if possible), all relevant

documents submitted through online

process. Online technical bid will be

opened for Bidders who have submitted

Physical Document against EMD/Tender

Fee within due date as per NIT.

Party has to be in touch with website

Tentative date of On-line opening of price https://gsecltender.nprocure.com and

bid at 15.30 hrs. (if possible) also with e-mail sent by above website.

120 Days from the Date of

Validity of Rates (Compulsory)

Opening of Technical Bid.

Delivery of Goods/Completion of work As per Technical Bid

Sample Approval As per Technical Bid

Security Deposit As per Cl. No. (1) of Notes for

Supplier mentioned under

PUR-F-10 ET-248

Important Notes to Bidders:

(1) It is mandatory for all the bidders to submit their tender documents Online (e-

tendering) and in schedule time. Please note that Price bid is to be submitted

online only. Bidders should have to fill and submit the tender documents

on n-procure websites only. Tender documents submitted in tenderer’s own

printed paper or format other than GSECL’s format is liable to be ignored.

(2) Any technical information and clarifications that may be required pertaining to

this tender should be referred to the Chief Engineer (Gen), Gujarat State

Electricity Corporation Ltd., Thermal Power Station, Gandhinagar–382041,

Gujarat (India).

(3) Bidder has to upload scanned copies of original (Notarized/ self attested copies

of original – as specified in tender document) documents with online bid and no

physical documents are to be submitted. If physical Tender documents

submitted by any bidder then offer of the same bidder is liable to be ignored and

no further communication in the matter will be entertained.

(4) It shall be sole responsibility of the bidder that the uploaded scanned

documents (in PDF format) remain legible and should not be password

protected. The size of PDF is to be suitable so that it can be uploaded online (n-

procure). No any documents will be accepted offline or hard copy.

(5) Bidder should have to give Validity of their offer for minimum 120 days from the

actual date of opening of Technical Bid otherwise their tender/offer will be

ignored/rejected. Bidder shall have to extend validity further for 60 Days, if

required on all tender items (not for individual items), otherwise your offer is

liable to be ignored.

(6) GSECL reserves the rights to reject any OR all tenders without assigning

any reasons thereof.

(7) Please note that Conditional Offers will liable to be ignored.

(8) Bidders should be in touch with N-Procure and GSECL websites for information

regarding revision/ corrigendum/ amendment in tender till due date of on line

submission and thereafter. No separate correspondence will be done in this

(9) If the bidder wish to submit Bank Guarantee (BG) in lieu of Earnest Money

Deposit (EMD)/ Security Deposit (SD) / Performance Bank Guarantee (PBG),

then the bidder should ask his BG issuing Bank to give intimation to our Bank

of Baroda (Beneficiary Bank), , SECTOR-21, GANDHINAGAR branch having IFS

Code as BARB0GANDHI (fifth letter is zero) through Structured Financial

Messaging Solution (SFMS). BG should be valid for minimum one year.

(10) Bidder shall have to submit scanned copy of Active GSTIN registration and PAN

in online bid. Tenders submitted without Active GSTIN by the bidders, the offer

will be rejected without entering into further correspondence.

(11) If any deviation in your offer with respect to Tender specification, then please

mention clearly in separate deviation sheet Annexure-12, otherwise your offer

will be considered exactly as per our Enquiry / Tender specification.

(12) Whichever terms conflict with “GENERAL COMMERCIAL TERMS AND

CONDITIONS” the terms mentioned in “TENDER DOCUMENT/NIT” will be

(13) GSECL reserves the right to place the order on technically qualified bidders for

item wise lowest quoted party.

(14) Party has to accept part order.

(15) If participating bidder/agency have stake in one or more other agencies /

bidders who are participating in same tender and on account of submission of

PUR-F-10 ET-248

wrong information / declaration in the tender / enquiry certificate – A, then the

bidder will be declared as disqualified automatically and EMD/SD will be

forfeited, Further, GSECL shall take stern action including Stop dealing with

(16) GSECL reserve the rights to accept/reject/cancel any or all the offers/tenders,

extend dates and/ or re-advertise tender, and/ or the whole process of

tenderization at any stage without assigning any reasons thereof.

(17) In case of short submission of documents with bid, GSECL reserves the right to

ask through e-mail / electronic mode / letter to submit the required details /

documents and/or clarification in physical form as well as in electronic form as

the case may be. The bidder has to submit the required document / details /

clarification asked by GSECL within stipulated time limit, failing which the bid

will be liable for rejection.

(18) The party must agree to participate in the VMS during tendering process and

provide necessary details to streamline the VMD registration process to avoid

delays in payment for supplies.

(19) Dispute Resolution Mechanism: Arbitration through the Arbitration Centre

(Domestic and International) High Court of Gujarat at Ahmedabad.

19.1) Amicable settlement

“Any dispute, difference, controversy or claim between the parties

arising out of or relating to this contract with reference to the

construction, interpretation, breach, termination or validity

thereof (herein after referred as “the Dispute”) shall, upon the

written request of either party by referred to the authorized

representatives of the disputing parties for resolution. The

authorized representatives shall promptly meet and attempt to

negotiate in good faith a resolution of the dispute within

days of the service of the request.”

19.2) Arbitration

If the parties fail to amicably resolve the disputes or

differences or contrary claims as indicated herewith in sub

clause (1) of Clause 19 arising under or in connection with the

present agreement, the same shall be referred to the

Arbitration Centre (Domestic & International) High Court of

Gujarat at Ahmedabad (“the Centre for short”), currently

functioning in the High Court Complex, Sola Ahmedabad for

appointment of arbitrator and thereupon, the Centre shall

appoint a sole arbitrator and conduct the arbitration

proceedings in accordance with its rules. If the parties

unanimously agree to appoint three arbitrators then in that

case, each party shall appoint one arbitrator from the panel of

arbitrators of the Centre, and the Centre shall appoint the

third arbitrator, who will act as the Presiding Arbitrator. Such

arbitration shall be the sole and exclusive remedy between the

parties for all disputes arising under or in connection with this

agreement. The arbitration shall take place at The Arbitration

Centre Ahmedabad, High Court Complex, Sola, Ahmedabad,

Gujarat, in accordance with the provisions of the Arbitration

and Conciliation Act, 1996 as amended from time to time, and

the proceedings shall be conducted in English. The arbitration

award shall be final and binding on the parties.

(20) Bidder should read and verify the documents of Commercial Terms & Conditions

of Tender & Supply (i.e. clause No. 1 to 71) of GSECL, Gandhinagar TPS and

confirm that all the above documents are verified & certified by you as below.

PUR-F-10 ET-248

“I/we read the above documents and agree for the Conditions of Tender &

Supply (i.e. Clause No.1 to 71) of GSECL, Gandhinagar, TPS and accordingly

submitted my / our offer.”

(a) It is mandatory to accept the Cl. 1 to 71. Bidder may accept the same on

a single paper instead of all 37 pages. [Pg. 1 to 37] and attach PDF copy

of seal & signed paper in online documents.

(b) It is mandatory to submit duly filled, stamped and signed PDF copies of

Tender Document up to Technical Bid, Annexure – 1 to 15 including

Annexure 10 (GSECL-GTPS), Integrity pact, Important Instruction and

certificate-A through online (n-Procure) process only.

(21) “All bidders shall submit the details/documents in support of Technical

Qualification Requirements duly certified and verified for authenticity from

Specified Third-Party Inspection Agency (TPIA) along with a certificate regarding

verification of authenticity of documents as per the format placed at Annexure-1.

All the documents submitted by the bidder in support of meeting Technical QR

only shall be digitally signed by the Specified Third-Party Inspection Agency

(TPIA). The verification and certification of authenticity of documents is

acceptable from any of the following TPIAs:

1. M/s Competent Inspectorate and Consultants Pvt. Ltd, Hyderabad, India.

2. M/s Gulf Lloyds Industrial Service India Pvt. Ltd.- Ahmedabad.

3. M/s International Certifications Services.

4. M/s Intertek India Pvt. Ltd.

5. M/s SGS India Pvt. Ltd.

6. M/s Moody International (India) Pvt. Ltd.

7. M/s TUV SUD South Asia (P) Ltd.

8. M/s TUV Rheinland (India) Pvt. Ltd.

9. M/s Bureau Veritas (india) Pvt. Ltd.

10. Hertz Inspection & Services Pvt. Ltd.

11. IRCLASS Systems and Solutions Pvt. Ltd.

The Bidder shall be responsible for getting their documents/ credentials verified &

certified by the Specified Third-Party Inspection Agency (TPIA) or Statutory Auditor of

their Company or Practicing CA/CA Firm in support of Technical QR. All the costs

pertaining to third party verification and certification (including those by statutory

auditors) shall be borne by the Bidder. GSECL shall have no liability (financial or

otherwise) towards the same and shall not be liable for any claim/ dispute between

the bidder and the Specified Third-Party Inspection Agency (TPIA) or Statutory Auditor

of their Company or Practicing CA/CA Firm.”

Note:- The Above Clause No.(21), TPIA Verification for authenticity shall not be

applicable in following cases

(1) If Bidder having proven track record or regular suppliers/Contractors (i.e.

OEM/ OES/ PSU’s).

(2) If Bidder should have Past order copies of GSECL as these documents can

be Verified internally.

For & On Behalf of GSECL,

Chief Engineer (Gen)

GSECL, TPS Gandhinagar

PUR-F-10 ET-248

Undertaking from Third Party Inspection Agency/Statutory Auditor or

Practicing CA/CA Firm

(On letter head digitally signed by a person duly authorized to Sign on behalf of the

Power Station Gandhinagar.

Subject: Authentication of veracity of documents submitted by M/s

…………………………… in support of Meeting the Qualifying Requirements.

Ref : Tender no.: …………………..

Name of the Package/ Tender: ………………………………………

M/s. …………………… (hereinafter called Bidder) having Registered office at

…………………… intend to participate in above referred tender of GSECL.

The tender condition stipulates that the bidder shall submit supporting Documents

pertaining to Qualifying Requirement duly verified and certified by Third-Party

Inspection Agency (TPIA) or Statutory Auditor of their Company or Practicing CA/CA

Firm as per the list mentioned in the bidding documents.

In this regard, it is hereby confirmed that we have examined the following

documents, which are also attached with this letter. The same has been verified from

the Original Documents and / or Client for authenticity.

We hereby confirm that the following documents are found to be genuine and

1. Doc ref. no. ……….. dated …….. (Name of Documents)

2. Doc ref. no. ……….. dated …….. (Name of Documents)

All the aforesaid documents have been digitally signed by us as a certificate of

We further confirm that we neither have any vested interest in aforesaid tender nor

have any conflict of interest in respect of above tender.

This certificate is issued at the request of M/s ………………. (Bidder) for the purpose

of participating in the subject tender/s.

Bidder’s Signature

with Seal & Date

PUR-F-10 ET-248

GUJARAT STATE ELECTRICITY CORPORATION LTD

Thermal Power Station, Gandhinagar-382

Note: Bidder has to fill following Details without fail (It is Mandatory).

1. (a) Full Name and Address

2. Particulars of Registration as a

Contractor and class in which

(a) In the Gujarat Elect. Corp. Ltd.

(b) In other Government

3. Reference to be made to (Name &

4. Previous experience in Railway, PWD

and other works

5. Any other information the contractor

may desire to give

Bank Account Number

Name of Beneficiary

Type of Account

Branch Name & Address

Contact Number of The

Cancelled Cheque copy Scan copy of the same is mandatory

PUR-F-10 ET-248

Sub: Work of Design, Supply, Erection, Testing and commissioning of

new Generator Relay Panels in place of old panels for Unit No. 3 &

4 of Gandhinagar TPS.

Description of Material Unit

PRE WIRED PROTECTION PANEL COMPRISING

NUMERICAL GENERATOR PROTECTION SCHEME

FOR GENERATOR , GENERATOR TRANSFORMER

UAT PROTECTION RELAYS AND OTHER AUXILIARY

RELAYS AND ACCESSORIES AS PER

PC , NETWORKING CABLE, ETHERNET SWITCH

INTERFACING EQUIPMENTS ETC FOR DR WORK

STATION AND SCADA (W/O CONTROL)

APPLICATION AS PER SPECIFICATION.

SPARES SET OF ALL RELAYS INSTALLED IN

GENERATOR RELAY PANEL INCLUDING ALL TYPE

OF AUX RELAYS, FREQUENCY GENERATOR &

FILTER, CONTACTORS, RESISTANCES AND

ACCESSORIES INSTALLED IN SUPPLIED GRP

PANELS.(10% SPARE OR MINIMUM 1 (ONE) NO.)

INSTALLATION, TESTING AND COMMISSIONING

OF GRP PANELS MENTIONED AT SR. NO 1 ABOVE

INSTALLATION, TESTING AND COMMISSIONING

OF DR WORK STATION AND SCADA WITHOUT

CONTROL FOR GRP MENTIONED AT SR. NO.2

Note: Overall Lowest party’s offer will be considered for placement of order i.e.

considering supply and works part as a whole. Part/Partial offer will not

be considered and order will be awarded to overall L -1 bidder.

Pre Qualifying Criteria for Bidder

The bidders who wish to participate in the bidding shall satisfactorily establish that

they fulfill the following Qualifying Requirements:

A. Technical qualification criteria:

1) The bidder shall be Original Equipment Manufacturer (OEM)/OES. The

offered equipmenthave to be designed, manufactured and tested as per

relevantIS/ IEC with latest amendments.

2) The bidder should have executed / completed similar works during the

last seven (7) years in Government / semi government / state electricity

board / private limited company / public limited company / IPP , as on

last date of the month preceding the month of publication of tender,

having minimum contract /order values as indicated below :

a) One order of value not less than the amount equal to Rs.

b) Two orders, each of value not less than the amount equal to Rs.

PUR-F-10 ET-248

c) Three orders, each of value not less than the amount equal to Rs.

Similar work means: “The bidder should have engineered, manufactured,

supplied, erected and commissioned Numerical Relay based “Busbar Protection

system” and/or “Generator protection system” and/or “Transmission Line

protection system” for switchyard/substation/power plant. For above, purpose

work carried out at single or multiple locations will be acceptable.”

B. Financial qualification criteria:

1) The Average Annual Turnover of the bidder, shall not be less than Rs.

69,43,288.25 during the preceding three (3) financial years as one date of

Techno-Commercial bid opening.

2) Net worth of bidder shall not be less than 100% of the bidder’s paid up

share capital as on the last day of the preceding financial year. In case the

Bidder meets the requirement of Net worth based on the strength of its

Subsidiary (ies) and/or Holding company and/or Subsidiaries of its

Holding Companies wherever applicable, the Net worth of the Bidder and

its Subsidiary (ies) and/or Holding company and/or Subsidiary (ies) of the

Holding Company, in combined manner should not be less than 100% of

their total paid up share capital. However individually, their Net worth

should not be less than 75% of their respective paid share capitals.

Net worth in combined manner shall be calculated as follows:

Net worth (combined )= (x1+x2+X3)/(y1+y2+y3) X 100, where x1,x2, x3 are

individual net worth which shall not be less than 75 % of the respective

paid up share capitals and y1, y2, y3 are individual paid up share capitals.

3) In case the bidder is not able to furnish its audited financial statements

on stand-alone entity basis, the unaudited unconsolidated financial

statements of the bidder can be considered acceptable provided the

bidder further furnishes the following documents for substantiation of

its qualification.

 Copies of the unaudited unconsolidated financial statements of

the bidder along with copies of the Audited consolidated financial

statements of its Holding Company.

 A Certificate from the CEO/CFO of the Holding Company, stating

that the unaudited unconsolidated financial statements form

part of the Consolidated Annual Report of the company.

4) In cases where audited results for the last preceding financial year as on

the date of techno-commercial bid opening are not available, the

financial results certified by a practicing Chartered Accountant shall be

considered acceptable. In case, Bidder is not able to submit the

Certificate from practicing Chartered Accountant certifying its financial

parameters, the audited results of three consecutive financial years

preceding the last financial year shall be considered for evaluating the

financial parameters. Further, a Certificate would be required from the

CEO/CFO, stating that the Financial results of the Company are under

audit as on the date of Techno-commercial bid opening and the

Certificate from the practicing Chartered Accountant certifying the

financial parameters is not available.

5) The bidder must submit Average Annual Turnover and Net worth

Certificate in support of Financial QR, duly certified and verified for

authenticity from Independent Statutory Auditor of their company /

Practicing Charted Accountant/ C.A. Firms / TPIA (Third-Party

PUR-F-10 ET-248

Inspection Agency ) empaneled approved by GSECL, along with copy of

Annual Audited Accounts of last three years.

Note for point No.1, 2, 3&4:

i. Other income shall not be considered for arriving at annual turnover.

ii. “Holding Company" and “Subsidiary Company” shall have the meaning

ascribed to them as per Companies Act of India, in vogue.

iii. Net worth means the sum total of the paid up share capital and free reserves.

Free reserve means all reserves credited out of the profits and share premium

account but does not include reserves credited out of the revaluation of the

assets, write back of depreciation provision and amalgamation. Further, any

debit balance of Profit and Loss account and miscellaneous expenses to the

extent not adjusted or written off, if any, shall be reduced from reserves and

Other requirements:

(1) Bidder should have a separate valid GST registration number and PAN

(2) Copy of P.F. code from the appropriate provident fund authorities.

(3) Labour License for Labour Contract: The contractor on getting the work order

but before starting the work shall have to furnish the copy of Labour License

under the Contract Labour (Regulation & Abolition) from the appropriate

authorities. Also required workman group insurance policy covering labour

(4) The bidder must submit performance certificates or satisfactory work

completion certificates (issued directly by the utility) or Copy of Processed

Final Bill of the executed / submitted PO from the utility. Bidders shall be

required to submit all the documents, in support of Technical QR (Such as

copies of Purchase orders/work orders / Contract Agreements, Client

Certificates, etc), duly certified and verified for authenticity by the

Independent Statutory Auditor of their company / Practicing Charted

Accountant/ C.A. Firms / TPIA (Third-Party Inspection Agency)

empaneledapproved by GSECL

(5) Tender fee & EMD will be application as per NIT.

PUR-F-10 ET-248

Technical Specifications: Detailed Item technical specifications of indented item

is attached as per Annexure-A separately.

TERMS & CONDITION:

(1) Party has to supply material as per detail technical specification only.

(2) Party has to clearly mention offered make/model in technical bid with detailed

technical literature for each item.

(3) Order Validity:- The validity of this order is 30 months from the date of issue of

Order however order validity may be extended by mutual agreed.

(4) Completion Time :-

 Supply Portion:- The time limit for the supply of material at the GTPS site

is 6 months from the date of issue of LOI or 4 months from the date of

drawing approval, whichever is earlier. Penalty will be levied as per

applicable rules in case of delay.

 Work Portion:- The retrofitting job work must be completed within 20 days

during the scheduled shutdown period. A prior intimation of 15 days will be

given before the shutdown. Failure to complete the work within the

stipulated time will attract penalties as per applicable rules.

(5) You have to give guarantee certificate for 36 Months from the date of receipt of

material at Main store GTPS for all supplied materials & 10 Years for all

supplied numerical relays/BCU/Injection Unit/protection devices. If

goods/equipments are found defective during guarantee period due to bad

design material or workmanship, the same should be replaced/repair free of

(6) You have to submit material test certificate along with supply.

(7) You shall have to supply necessary supply cable/connector.

(8) Delivery: F.O.R. GSECL, MAIN STORE GANDHINAGAR THERMAL POWER

(9) Payment: As per GSECL Standard Terms and Conditions.

PUR-F-10 ET-248

Sr. DESCRIPTION PAGE

1.00.00 Intent Of Specification

2.00.00 Scope of Bidder

3.00.00 Schedule Of Requirement

4.00.00 Standards

5.00.00 Climatic Conditions

6.00.00 General Description of the Project.

7.00.00 General Technical Requirement: - Panel

8.00.00 General Technical Requirement:-Relays

9.00.00 General Technical Requirement:-SCADA

10.00.00 Details Of Instrument Transformers, Power Transformers And

11.00.00 Principal Technical Parameters of Relay & Scheme

13.00.00 Inspection During Manufacturing

14.00.00 Quality Assurance Plan

15.00.00 Performance Guarantee

16.00.00 Deviations

17.00.00 Document Submission

18.00.00 Drawings / Data / Documents To Be Submitted By Bidder

Along with The Bid

19.00.00 Drawings / Data / Documents To Be Submitted By Successful

20.00.00 Demonstration

21.00.00 Packing And Transport

22.00.00 Training

23.00.00 Supervisory Installation & Commissioning

24.00.00 Guaranteed Technical Particulars

25.00.00 Guarantee For Maintenance Spares And Services

SIGN OF BIDDER CHIEF ENGINEER (Gen),

PUR-F-10 ET-248

1.00.00 INTENT OF SPECIFICATION

1.01.00 This specification is intended to cover design, engineering, manufacture,

Fabrication, assembly, inspection and testing at manufacturer's works,

packing & forwarding, supply, delivery at GTPS site, installation and

commissioning of complete Pre wired Generator Protection Relay Panel

having latest state of the art technology Microprocessor base Numerical

type Generator & Transformer protection relay including required Trip

relay , auxiliary relay , TBs etc. in place of existing Generator relay Panel

having Static and Electromechanical relays provided for Generator

Protection of Unit # 3 & 4 at Gandhinagar Thermal Power Station as

specified hereunder & as given in the schedule of requirements. The scope

also includes supply of spare set of relays for protection of Generator,

Generator Transformer and UAT similar to supplied in above protection

panels at GTPS.

1.02.00 DR work station/SCADA system to connect all these numerical relays of

above mentioned GTPS unit-3 & 4 with a dedicated PC for viewing online

parameters, data downloading and uploading etc. The SCADA application

should have suitable software and interface for viewing status of field

equipment’s like Isolators, Circuit breakers etc. and viewing parameters in

the Single line diagram graphic prepared in the software supplied and

installation & commissioning of the same for both units of Gandhinagar

Thermal Power Station. Number of binary inputs/binary outputs for field

equipments status will be as per scheme requirements plus minimum 10%

as spare for GTPS Unit 3 &

1.03.00 All drawings and Annexure appended are part of the specification and

supplement the requirement specified herein. The specification shall be

read and Construed in conjunction with the drawings and annexure to

determine the scope of work and terminal points.

1.04.00 As existing relays have been phased out and no technical support available

from OEM of GTPS Unit- 3&4, it has become necessary to replace existing

relays with panel. Modification required in the existing schemes / wirings,

for matching of new numeric protection relay scheme including design

programming , configuration , setting calculation , drawing preparation

,etc. to suit the requirements of existing protection scheme shall be

covered under scope of contract. The proposed scheme, based on the

existing protection requirements, must be thoroughly studied.

Thereafter, the bidder shall obtain approval from GTPS. The new

scheme should incorporate Main I and Main II redundancy; however,

the bidder may study the existing system and propose a suitable

scheme based on the offered relay architecture, provided that the

scheme covers all required protection functions and utilizes the

existing CT/PT inputs effectively to ensure a reliable protection

1.05.00 It is also intended to include complete relay application check and final

relay settings calculations to confirm suitability of new relays for the

existing equipments to be protected / existing relays both technically as

well as dimensionally.

1.06.00 The bidder shall visit the site and get him acquainted with the actual

requirements of site prior to quoting rates. No claims for inadequate

description of the scope shall be entertained at a later date.

1.07.00 It is not the intent to completely specify all details of design and

construction herein. Nevertheless, the equipment and installation shall

confirm to high standards of engineering design and workmanship in all

respects and shall be capable of performing continuous operation in a

PUR-F-10 ET-248

manner acceptable to the Purchaser. Reliability, availability and

maintainability are of the utmost importance to the Purchaser in the

design of the equipment described herein.

1.08.00 Preferred Make:- GE (formerly Alstom) and SIEMENS (SIPROTEC 5 series)

make relays only.

2.00.00 SCOPE OF BIDDER

2.01.00 The scope of supply shall include but not limited to FOR destination

supply of Pre wired Complete Panel with comprehensive numeric relays for

Generator , Generator Transformer and Unit Auxiliary Transformer

protection including Numerical Protection relay having sufficient no. of

Binary Input & Output and Analogue Input channels, Auxiliary relays

Tripping relays , TBs , Wires , Indicators , Test Switches / Sockets , Test

plugs , Stabilising resistors , illumination , pushbuttons , earth links etc.

to provide total functionality of protection for Generator , Generator

Transformer , UAT and integration of various functions in each unit as per

existing and new proposed protection scheme and logic.

2.02.00 Supplier can visit the Power Station to assess the quantum of work for

retrofitting the numerical relay if required.

2.03.00 It is not the intent to specify completely all the details of the design and

construction of equipment. However, the equipment shall conform in all

respects to high standards of engineering, design and shall be capable of

performing continuous operation up to the supplier’s guarantee. In a

manner acceptable to the purchaser, who will interpret the meaning of

drawings and specifications, and shall have the power to reject any work of

material which, in his judgment is not in accordance therewith. The offered

equipment shall be complete with all components necessary for their

effective trouble free operation. Such components shall be deemed to

whether those are specifically brought out in this specification and/or the

commercial order or not.

2.04.00 Software & Hardware for communication with relay, required accessories

Binary and Analogue input status and measurement interface cards &

equipments , com ports, connectors , networking accessories , cable , PC

Dedicated GPS for time synchronization, suitable furniture including

chairs, PC tables with facility of required inbuilt power supply board and

enclosed compartments with lock and key for DR work station and SCADA

application (without control) referred above shall be part of the scope of

2.05.00 The Bidder shall study the existing scheme of protection for Generator,

Generator Transformer, UAT and associated equipments and accordingly

offer complete protection scheme of Protection with redundancy (Main I &

Main II) covering all existing protections and additional functions as

available in the offered numerical relays. There should be sufficient

number of Analogue input, Binary Input, Binary Output to suit the

requirement of protection function and logic. (The proposed scheme shall

be based on the existing protection requirements. The bidder must study

the existing scheme and accordingly offer a new scheme based on the

offered relay architecture, ensuring that it covers all required protection

functions and utilizes the existing CT/PT inputs as indicated to provide a

reliable protection Scheme.) However final scheme and application will be

decided after discussion with bidder during technical scrutiny of the offer.

2.06.00 The existing scheme of protection, CT, PT detail, Transformer detail etc.

have been furnished with this specification , however bidder should visit at

site to access the requirement , quantum of work , scheme logic , location,

dimension detail etc. before submitting the bid. The bidder shall submit

PUR-F-10 ET-248

complete detail of the scheme to be offered viz. relay, panel, configuration

of scheme logic, protection function and features etc.

2.07.00 The characteristics and relay setting ranges shall be decided by the bidder.

During detailed engineering, co-ordinated relay settings shall be worked

out by the successful bidder and the calculations/time-charts shall be

submitted for approval to Owner/Consulting Engineer.

2.08.00 Trip Matrix required for implementing various class tripping schemes shall

be provided by the bidder and shall be indicated in block interlock

diagrams to be submitted.

2.09.00 The scope includes preparation and furnishing of settings, calculations,

installation, commissioning instructions and maintenance manual for all

protections with all operational feature/optional feature.

2.10.00 The scope includes preparation and furnishing softcopy as well as

hardcopy of five sets of all types of as built drawings including schematic,

internal external cable connection drawings, wiring/cable schedules,

electrical internal circuits indicating measuring points and measuring

values, relay data sheet, relay setting calculation.

2.11.00 The scope includes supply of wires, lugs, connectors, screws, nut bolts etc

required for retrofitting and other accessories which are necessary for

satisfactory operation of complete relay scheme though not individually or

specifically mentioned herein.

2.12.00 The disconnection of existing control wiring, indication, annunciation, CT,

PT connections from all the protection panels and removal of existing

relays, wires, terminal blocks etc. with proper tagging. Removal and

shifting of removed panel at place directed by engineer in charge.

2.13.00 Installation of New panel in place of existing removed panel including

shifting from storage with required mounting hardware, blanking plates,

Glands, earthing strip, relevant fabrication etc. with covering of remaining

portion of Cable trench including necessary civil work.

2.14.00 The scope includes wiring/terminations, grounding etc and also wiring

modifications to include all logic as per existing protection scheme.

2.15.00 Supply and mounting of all equipment as specified in this specification

together with such auxiliary equipment and materials as required. The

tenderer shall indicate make, type and designation of all equipments

2.16.00 Complete internal wiring of equipment and terminal blocks and wiring

between adjacent panels. Design and manufacture of relays and relay

assemblies to meet the requirement of various protection schemes,

specified in this specification or not.

2.17.00 The testing and commissioning of modified and retrofitted control and

relay panels including testing and commissioning of all relays including

supplied by gsecl for all functions/logics in totality and furnishing of test

2.18.00 The scope includes Commissioning of additional features /logics other

than existing scheme as per requirement with accessories and auxiliary

equipments if required.

2.19.00 Any defect arises in Panel , Communication equipments , Software , relay

auxiliary relay, GPS and found defective during commissioning at site

shall be replaced free of cost, which include transportation and re-

commissioning also.

2.20.00 The scope includes to time synchronize the supplied relays and

DR/SCADA PC with supplied dedicated GPS.

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2.21.00 The successful bidder shall be required to provide facility for training, at

no extra cost to the purchaser’s six to eight engineers in two batches from

GANDHINAGAR thermal power station to be nominated by the purchaser

for a period of at least two to three days at his works/at GSECL site as per

availability, where the equipment offered shall be manufactured. The

training shall cover familiarization with scheme, procedures of installation,

testing, commissioning, operation, maintenance and trouble shooting on

2.22.00 If the relay offered, is being designed and manufactured in collaboration

with any other manufacturer, the supplier shall provide facilities for the in-

plant training in the collaborators works.

2.23.00 In case of training within India, the to and fro travel expenses, lodging and

boarding charges as well as allowances for out of pocket expenses in

respect of the trainees, shall be borne by the Purchaser. However, the

supplier shall provide suitable facilities for lodging as well as to and fro

transport to place of training from the hotel/guest house.

2.24.00 The program of the training shall be mutually discussed and finalized by

the purchaser with suppliers.

2.25.00 Removal of all existing 6 nos. panels and any other associated works shall

be carried out by the bidder and will be under their scope of responsibility

including re termination, removal, fabrication, civil work as per system

requirement and as per directed by EIC.

2.26.00 Any other works and supply which could not be specified above but are

necessary to complete the job shall be the responsibility of the bidders.

2.27.00 Keeping in view, the above scope of work, the bidder shall furnish

sequence of activities to be carried out to avoid the generation loss, likely

to occur during above works. The bidder shall note that above work shall

be completed within shut down period of 20 Days. The bidder shall also

note that there may be uncertainty of Shutdown due to grid exigency.

However, no additional cost/ compensation on this account shall be

2.28.00 All work from commencement to completion shall be carried out in

accordance with applicable safety standards. The bidder shall strictly

comply with GSECL safety norms and ensure the use of appropriate

Personal Protective Equipment (PPE) at all times. In the event of any

unsafe practices or non-compliance, GSECL reserves the right to stop the

work at any time and impose penalties for violation of safety standards. No

extension of time shall be granted for completion of the work due to

stoppage arising from safety non-compliance.

2.29.00 Cable: - The cable requirement shall be assessed and finalized during the

pre-bid meeting. Armoured cables shall be used for all new installations

and for replacement of existing cables as per scheme requirements, subject

to approval of the Engineer-in-Charge (EIC). A quantity tolerance of +20%

shall be considered for cable requirements.

2.30.00 New Protection schemes not covered in the existing scheme (e.g., 100%

stator earth fault protection with injection unit requiring new CT

installation), the bidder shall arrange and supply all necessary materials,

including cables. Wherever shielded cables are required, the bidder shall

provide armoured shielded cables, subject to approval of the Engineer-in-

Charge (EIC). A quantity tolerance of +20% shall be applicable for cable

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3.00.00 SCHEDULE OF REQUIREMENT

3.01.00 The requirement of Panel, Relay and Communication network etc. to be

supplied against this specification and their required deliveries are given in

Commercial Terms and Conditions.

3.02.00 Delivery instructions shall be issued to the successful bidder after

placement of orders and after inspection and testing of Panels and relays

at manufacturer’s works.

3.03.00 Recommended spares:

The tenderer shall furnish in his offer, a list of recommended spare with unit rates

for PROTECTION PANELS that may be required for trouble free operation for a

period of 15 years. The purchaser reserves the right of selection of items and

quantities of these spares to be ordered.

3.04.00 Recommended tools, testing kits including laptop and test handles

The tenderer shall furnish in his offer a list of recommended testing kit, tools with

unit rates for PROTECTION PANELS those may be required during testing and

commissioning of said panel for off line as well as on line testing. The purchaser

reserves the right of selection of items and quantities to be ordered.

4.00.00 STANDARDS

4.01.00 Unless otherwise specified elsewhere in this specification, all equipment

and materials shall be designed, manufactured and tested in accordance

with the latest revisions of Indian Standards or British Standards and

International Electro-Technical Commission (IEC) Standard available at

the time of placement of order. The supplier shall submit the copies of the

relevant standards applicable to the relay.

4.02.00 Equipment meeting with any other standard, which ensures equal or

better quality, may be accepted. Where the equipment conforms to any

other standard, the salient points of difference between the standards

adopted and the above standards shall be clearly brought out in the

tender. A certified copy of such standard in English version shall be

submitted along with the bid.

4.03.00 The equipment shall also comply with the latest revision of Indian

Electricity Act and Indian Electricity Rules and any other applicable

statutory provisions, rules and regulations applicable in the locations

where these are to be installed.

5.00.00 CLIMATIC CONDITIONS:

5.01.00 The climatic and isoceraunic conditions at site are given below:

a Maximum ambient temperature (º C)

a Maximum ambient temperature in shade (º C)

b Minimum ambient temperature in shade (º C)

c Maximum daily average ambient temperature (º C)

d Maximum yearly average ambient temperature(º C)

e Relative humidity (%) 10 to

f Average annual rain fall (mm)

g Average number of thunder storms (days/year)

h Height above Sea level (Meters) Not exceeding

i Maximum wind pressure (Kg/m2)

PUR-F-10 ET-248

j Earth quake acceleration 0. 2 g to 0.3 g

5.02.00 The equipment offered shall be capable for continuous satisfactory

operation under the above conditions.

5.03.00 Since the equipment offered shall be used in the Thermal power station the

offered equipment shall be suitable for such atmosphere.

5.04.00 Equipment covered in this specification shall be suitable for indoor

5.05.00 Relays must have conformal coating which protects PCBs from moisture,

dust, chemical, heat & harsh environments.

6.00.00 GENERAL DESCRIPTION OF THE PROJECT:

6.01.00 The equipment specified herein will be installed at Gandhinagar Thermal

Power Station of Gujarat State Electricity Corporation Limited.

6.02.00 The site is located i.e. Gandhinagar TPS Located at about 30 KMs from

Ahmedabad Railway Station and about 20 KMs from Ahmedabad Airport.

The nearest Railway Station is Gandhinagar for Gandhinagar TPS.

6.03.00 The Generation voltage is 15.75kV, which is stepped up to 220 KV by

means of 3-phase Power Transformers (GTs). The connection between

generator terminals and GT would be by means of bus-duct up to 15.75kV

LT side terminals of GT.

6.04.00 The connections from the GTs to Take-off gantry would be by means of

overhead conductors. There are two Nos. 15.75 kV /7.0KV Unit Aux.

Transformers to cater auxiliary load per unit.

6.05.00 The existing protective functions and other diagram/detail will be provided

on demand as per bidder’s requirement and being appended to this

specification for the guidance of the bidders; however, bidders are advised

to get themselves acquainted with actual inputs at site.

7.00.00 GENERAL TECHNICAL REQUIREMENTS: PANEL

7.01.01 Existing Generator relay panel at Gandhinagar Thermal Power Station is of

Simplex type. The schematic of the existing panel will be provided during

designing and party has to visit and confirm scope of work. The existing

complete panel (all existing six nos. of panels) shall be removed and the

new panel to be supplied at Gandhinagar TPS shall be designed to have

matching dimension and colour shade with existing other panels to house

all required relays, equipments, accessories etc. as specified in this

specification for both units of Gandhinagar Thermal Power Station.

7.01.02 Panel shall be completely metal enclosed and shall be dust, moisture and

vermin proof to meet the requirement of IP 51 of IS:

7.01.03 The panel shall be free standing , floor mounting type, and shall comprise

rigid , welded structural frame enclosed completely with specially selected

smooth finished cold rolled sheet steel of thickness not less than 3.0 mm

for load bearing members ( Front Panel , base frame , door frame) and

mm for non-load bearing members ( side panel , cubicle roof , door). There

shall be sufficient reinforcement to provide level surfaces, resistance to

vibration, and rigidity during transportation and installation.

7.01.04 All doors and removable covers shall be gasketed all round with neoprene

gaskets, ventilating louvers with screen and filters.

PUR-F-10 ET-248

7.01.05 Design, material selection and workmanship shall be such as to result in

neat appearance inside and outside with no weld, rivets or bolt heads

apparent from outside and with all exterior surface true and smooth.

7.01.06 Cable entries to the panel shall be from the screwed type removable bottom

plates of the panel.

7.01.07 The panel should be completely wired and to be fixed with all accessories

like Relays , Auxiliary relays , TBs , ( Disconnecting type TBs with shorting

arrangement for CT , PT) , Earthing Bus , Terminal connection for CT – PT

Cables, Switches, LED type Illumination, space heaters, Power sockets,

Connection to Relays, Ethernet switch, Computer etc.

7.02.00 AUXILIARY SUPPLY:

7.02.01 The bidder will have to reconnect the existing AC / DC supply for

Switches, Panel illumination, space heater etc. and supplies for control

and protections of existing panels. Bidder will have to remove existing

panels of auxiliary DC supply and provide same DC changeover scheme

with all necessary arrangements in NEW panel.

7.02.02 The relays shall be suitable for 220-250V (+10 % to -15%) DC supply.

7.03.00 PANEL INTERNAL WIRING

7.03.01 All wiring shall be carried out with 1100V grade single core multi strand

flexible copper conductor wires with HRPVC insulation and shall be flame

retardant, vermin and rodent proof. The current carrying capacity of wire

shall be adequate for the duty assigned to it considering short circuit

condition and shall have sufficient flexibility to facilitate proper

termination at any location. Colour coded wires (red, yellow, blue, black)

shall be used for CT, VT and CVT secondary connections. The copper

conductor used for internal wiring be as follows:

a) All circuits except instrument transformer circuit of 1.5 Sq mm per

b) CT circuit - one 4 Sq mm per lead.

c) VT/CVT circuits one 2.5 Sq mm per lead.

d) Energy metering – 4 Sq mm per lead for both PT & CT circuits.

7.03.02 Auxiliary bus wiring for AC and DC supplies voltage transformer circuits,

annunciation circuits and other common circuits shall be provided near

the top of the panels running throughout the entire length of the panels.

7.03.03 The wire numbers shown in the wiring diagram shall be in accordance

with IS375/BS152/BS156. All wires directly connected to trip circuit

breaker or devices shall be distinguished by addition of a red coloured or

lettered ferrule. Number 6 and 9 shall not be used.

7.03.04 Panel wiring shall be securely supported, neatly installed by lacing and

tying, readily accessible and connected to equipment terminals and

terminal blocks. Flame retardant, plastic wiring channels/troughs with

strap on plastic covers shall be used for this purpose. Sufficient space in

channel for modification of wiring shall be kept.

7.03.05 Accidental short circuiting of certain wires is likely to result in malfunction

of equipment, such as closing or tripping of a breaker or positive and

negative wires, these wires shall not be terminated on adjacent terminal

7.03.06 The unused space on the front or rear of the panels shall be kept clear of

wiring to facilitate addition of devices without rewiring associated portion

7.03.07 Wire termination shall be made with solder less crimping type of tinned

copper lugs which firmly grip the conductor. Insulation sleeves shall be

PUR-F-10 ET-248

provided at all the wire terminations. Engraved core identification plastic

ferrules, marked to correspond with panel wiring diagram shall be fitted at

both ends of each wire. Ferrules shall fit tightly on the wire and shall not

fall off when the wire is disconnected from terminal blocks.

7.03.08 The bidder shall be responsible for the completeness and correctness of

the internal wiring and for the proper functioning of the connected

7.03.09 Terminations on T.B. shall be grouped function wise on one region of T.B.

(may not be full T.B) to take outlet connections in one cable for the

7.04.01 All front mounted equipment as well as equipment mounted inside the

panels shall be provided with individual labels with equipment designation

engraved. The labels shall be mounted directly below the respective

7.04.02 All the front mounted equipment shall also be provided tag numbers

corresponding to the ones shown in the panel internal wiring to facilitate

each tracing of wiring. These labels shall be mounted directly by the side of

the respective equipment and shall not be hidden by the equipment wiring.

7.04.03 Labels shall be made of Aluminium anodized plate P.V. Castings. Labels

shall have white letters on black background. All relays shall be given

standard abbreviation numbers with name of device, corresponding to the

ones shown in the panel internal wiring.

7.05.00 EARTHING

7.05.01 All metallic cases of relays, instruments and other mounted equipment

shall be connected to earth bus by copper wires of size not less than

sq. mm. The colour of the earthing wire shall be green.

7.05.02 Looping of earth connections which would result in loss of earth

connection to other devices when the loop is broken shall not be permitted.

However, looping of earth connections between equipment to provide

alternative paths, to earth bus shall be provided.

7.05.03 VT, CVT and CT secondary neutral or common lead shall be earthed at one

place only. Such earthing shall be made through links, so that earthing

may be removed from one group without disturbing continuity of earthing

systems for other group.

7.05.04 A separate earthing point shall be provided in the panel for cable screens

of static equipment, insulation between two earths prior to connections of

the two earths to the Purchaser’s earthing grid, shall withstand a test

voltage of 500V for 1 minute (or higher insulation resistance of not less

than 1 meg-ohms at 500V) connection between the screen terminals and

the screen earth – point shall be jumper wires. Connection of this earth

point to the station earth shall be carried out by Purchaser.

7.06.00 INDICATING LAMPS

7.06.01 Indicating lamps shall be of LED type suitable for panel mounting with

series resistors preferably built in the main assembly to avoid short

circuiting of control supply in the event of short circuit of lamps. The

lamps shall be rated for 220VDC unless otherwise specified. Lamp covers

shall be of screwed type, unbreakable and moulded from heat resisting

material and shall be translucent to diffuse light & coloured as specified.

PUR-F-10 ET-248

7.07.00 INTERIOR LIGHTING

7.07.01 The panel: shall be provided with LED type lighting fixture rated for 240V

AC supply, controlled by panel door switch and fuse. The number of such

lighting fixtures shall be 1 no. per panel.

7.07.02 The panel shall be provided with 240V, 50Hz. 15 A, 3 pin universal socket

with switch. The socket with switch shall be mounted inside the panel at

convenient location.

7.08.00 TERMINAL BLOCKS

7.08.01 Terminal blocks shall be 1100 V grade, 45 amps rated, one piece moulded,

complete with insulated barriers, stud type, melamine housing brass

terminals, washers, brass nuts and brass lock nuts and identification

strips. Markings on the terminals strips shall correspond to wire number

on the wiring diagrams. Not more than 2 wires shall be connected to any

7.08.02 Terminal blocks for CT, CVT and VT secondary leads shall be provided

with test links and isolating facilities. CT secondary wiring should be such

that it can connect additional circuit in series.

7.08.03 All spare contacts and terminals of the panel mounted equipment and

devices shall be wired up to terminal blocks with ferrule numbers starting

7.08.04 Unless otherwise specified, terminal blocks shall be suitable for connecting

the following conductors of purchaser’s cables on each side.

i) :All DC and auxiliary AC circuits -- minimum one of 2.5mm2 copper

ii) :All CT & PT circuits -- minimum two of 2.5mm2 copper

7.08.05 Moulding materials shall be self-extinguishing or resistant to flame

propagation, substantially non hydroscopic and shall not carbonized when

tested for tracking. The insulation between any terminal and frame work

between adjacent terminals shall with stand test of 2KV RMS for one

minute. The moulding shall be mechanically robust to withstand handling

while making terminations.

7.08.06 Easily removable Protective transparent plastic covers for placing over the

live parts of the terminal blocks shall be provided invariably.

7.09.00 PAINTING

7.09.01 All sheet steel work shall be phosphated in accordance with the following

procedures and in accordance with IS; 6005 `Code of Practice for

phosphating iron and steel’.

7.09.02 Oil, grease, dirt and swart shall be thoroughly removed by emulsion

7.09.03 Rust and scale shall be removed by pickling with dilute acid followed by

washing with running water, rinsing with slightly alkaline hot water and

7.09.04 After phosphating, through rinsing shall be carried out with clean water

followed by final rinsing with dilute bi-chromate solution and oven drying.

7.09.05 The phosphate coating shall be sealed by the application of two coats of

ready mixed, stowing type zinc chromate primer. The first coat may be

`Flash dried’ while the second coat shall be stowed.

7.09.06 After application of the primer, two coats of finishing synthetic enamel

paint shall be applied, each coat followed by stowing. The second finishing

coat shall be applied after completion of tests. The panel/sheet shall have

PUR-F-10 ET-248

colour confirming to shade of existing panel on outside & doors while white

7.09.07 Each coat of primer and finishing paint shall be of a slightly aesthetically

pleasing appearance free from dirt and uneven surface.

7.09.08 The bottom plate shall be painted with an anti-corrosive paint.

7.09.09 The paint thickness shall be 60-100 microns for powder coating.

7.10.00 MOUNTING

7.10.01 All equipment on front of panel shall be flush mounted.

7.10.02 Relays shall be mounted such that removal and replacement can be

accomplished individually without interruption of service to adjacent

7.10.03 No equipment shall be mounted on the doors without prior approval of the

8.00.00 GENERAL TECHNICAL REQUIREMENTS :RELAYS

8.01.00 The general requirements for the protective relays are described here

under however; all relays shall in general comply with the technical

specifications mentioned under clause 11.00.00 “Principal Technical

8.02.00 All relays shall confirm to the requirements of Standards listed as per IS:

3231/IEC-60255 or other applicable standards. Equipments meeting any

other authoritative standard, which ensures equal or better quality than

the standards mentioned shall also be acceptable. Equipment for which

Indian Standards are not available, the relevant British standards and IEC

recommendations will be applicable. Please attach photocopy of all such

standards according to which the equipment has been offered.

8.03.00 Relays shall be suitable for flush mounting on the front with connections

8.04.00 All protective relays shall be with proper on line testing facilities without

isolation from TB where inputs viz CT/ PT and DC are wired. All main

relays shall be provided with test plug to test the relay on line. Necessary

test plugs/ test handles per panel shall be supplied loose and shall be

included in contractor’s scope of supply.

8.05.00 All AC operated relays shall be suitable for operation at 50 Hz. AC voltage

operated relays shall be suitable for 110V VT secondary and current

operated relays for 1or 5 Amps. CT secondary. All DC operated relays and

timers shall be designed for the DC voltage specified, and shall operate

satisfactorily between 80% and 110% of rated voltage. Voltage operated

relays shall have adequate thermal capacity for continuous operation

8.06.00 Supervision relays having sufficient nos. of contacts for annunciation,

blocking and permissive function etc., to supervise healthiness of Auxiliary

supply, PT supply, voltage balance scheme, Trip relay healthiness, and

Trip circuits shall form part of the scheme to be supplied.

8.07.00 Bidder has to provide auxiliary relays as per existing requirement plus

minimum 10% extra relays for future use must be installed in supplied

8.08.00 Bidder has to make sure that all external tripping must be via auxiliary

relays only and each auxiliary relays having minimum 4 nos of contact.

PUR-F-10 ET-248

8.09.00 Any other requirement which is not specify in tender and required for

system reliability/requirement observed by Engineer in charge than bidder

has to provide that without any obligation at free of cost.

8.10.00 The protective relays shall be suitable for efficient and reliable operation of

the protection scheme described in the specification. Necessary auxiliary

relays and timers required for interlocking schemes, multiplication of

contacts, monitoring of control supplies and circuits, lockout relay

monitoring circuit etc. shall be provided.

8.11.00 All protective relays, auxiliary relays and timers except the lockout relays

and interlocking relays specified shall be provided with self-reset type

contacts. All protective relay and timers shall be provided with externally

hand reset positive action operation indicators with inscription.

8.12.00 Built-in hand-reset operation indicators shall have additional auxiliary

relays with operating indicators (flag relays) for this purpose.

8.13.00 No control relay which shall trip the power circuit breaker when the relay

is de-energized shall be employed in the circuits.

8.14.00 Any alternative/ additional protections or relays considered necessary for

providing complete effective and reliable protection shall also be included

in the scope of supply.

8.15.00 Provision shall be made for easy isolation of trip circuits of each relay for

the purpose of testing and maintenance.

8.16.00 The setting ranges of the relays offered, if different from the ones specified

shall also be acceptable if they meet the functional requirements.

8.17.00 All relays and their drawings shall have phase indications as R-Red, Y-

Yellow and B-Blue.

8.18.00 Wherever numerical relays are used, the scope shall include the following:

8.18.01 The relay shall have Ethernet / USB / RS232 on front side for

communication with Laptop/Desktop and on rear side RS485 /

Ethernet / USB / fibre optic port shall be provided for rear

communication. Necessary converter for communication with

PC / Laptop shall be part of scope of supply.

8.18.02 Necessary licensed copy of software and hardware to

upload/download the data to/from the relay from/to the

personal computer installed in the power station shall be

provided. Relay shall be looped by Fibre Optic/ twisted wire

Cables up to PC (DR work station).

8.18.03 The relay shall have suitable communication interface on rear

side for the IEC 61850 standard for station communication.

8.18.04 The relay shall be supplied with IRIG port / fibre optic /

Ethernet for time synchronisation with supplied GPS. The relay

shall also have facility for time synchronisation through min.

two different protocols.

8.18.05 The relay shall have sufficient no. of Analogue Inputs for CT –

VT of suitable rating to include all protection functions intended

in this specification.

8.18.06 The software shall be suitable for operations like switching,

retrieval of information or changing of setting groups, retrieve

oscillographic fault data from the relay memory and to store

fault record data as oscillographic records in standard

COMTRADE format or other latest standard format. The

software shall be suitable to provide oscillographic data into

several different graphical representations that can be used to

PUR-F-10 ET-248

analyse the fault or event captured by the relay. It shall also be

possible to calculate additional values from the captured signals

and displaying analogue curve with time base phasor diagrams,

locus diagrams, harmonic graphs etc. Automatic upload of DR

files should be possible.

8.18.07 The relay shall be supplied with all the original customized

licensed software, IO Cards, required cable for local or remote

communication, disturbance uploading, disturbance evaluation

8.18.08 The offered relay must be compliant with latest applicable and

prevailing cyber security norms in accordance with the

requirements of this tender. The offered relay shall be of the

latest proven technology, conforming to all applicable and

prevailing norms, and shall be suitable for long-term reliable

8.18.09 Relays must have conformal coating which protects PCBs from

moisture, dust, chemical, heat & harsh environments.

8.19.00 All not used terminal shall also be provided with screws washers, lugs etc.

as for used terminal.

8.20.00 The type test offered for relay shall be supplied with full options of

protection and control functions mentioned in the catalogue.

9.00.00 GENERAL TECHNICAL REQUIREMENTS: SCADA

SCADA SYSTEM for Gandhinagar Thermal Power Station

At Gandhinagar Thermal Power Station Unit-3 & 4, all supplied relays

shall be interfaced with two separate systems, namely a Dedicated DR

Workstation PC and a Dedicated SCADA PC. The DR Workstation PC shall

be used for disturbance record downloading, relay parameterization,

settings management and analysis. The SCADA PC shall be used for

monitoring, event logging, graphical display, status indication and

metering functions without control operation. Both PCs shall be supplied

by the bidder along with all necessary software, hardware, communication

interfaces, networking accessories and licensed applications.

9.01.00 The DR work station should be able to communicate with all relays for DR

downloading, viewing, Parameterisation etc.

9.02.00 The OEM’s SCADA application software must be suitable to all relay and

interface for viewing status of field equipments like Isolators, Circuit

breakers etc. and viewing parameters in the Single line diagram graphic

prepared in the software supplied.

9.03.00 The SCADA software must have same make of supplied relay & you have

to approve by EIC before supply.

9.04.00 The software should have latest OS window based platform.

9.05.00 The system should have event history recording and retrieving capability.

9.06.00 The time resolution for event recorded should not be more than 1 ms.

9.07.00 The protocol used should be open protocol for communication. If the

protocol used is of proprietary nature then use of Open protocol should

also be possible without major changes & free lifelong licence.

9.08.00 No. of binary inputs and binary outputs for field equipments (i.e. breaker,

isolator, switches etc.) status will be as per scheme requirements plus 10%

as spare for each unit at Gandhinagar TPS Unit-3&4.

PUR-F-10 ET-248

9.09.00 No. of circuits for which metering parameters to be monitored in SCADA

are 100 and accordingly no. of analogue points shall be suggested by

bidder. The bidder shall also Indicate clearly the method of connection, CT-

PT input, required equipments etc. as per site requirement.

9.10.00 Necessary PC, interfacing equipments, cable, Software, hardware &

accessories, furniture, panel etc. shall be part of this system.

9.11.00 Licensed version of OEM SCADA software, Operating system, Office

application, antivirus with original media software shall be part of the

9.12.00 Bidder must approve exact detail of software and required hardware with

its features, facilities and application with offer.

9.13.00 The bidder should furnish configuration and specification of PC, Hardware,

interfacing equipments etc. with bid. The specification should be such as

to suit the existing requirement of the project; however the same will have

to be approved from GSECL before finalisation of requirement in detail

9.14.00 The software should have capabilities to create user defined graphics

having desired input configuration in the created screen depending on

9.15.00 The interfacing hardware & software should be expandable to suit addition

of future requirement of binary input.

9.16.00 Suitable capacity of UPS having inbuilt battery set and sufficient back up

shall be supplied for SCADA equipments and PC.

9.17.00 The bidder should submit clear bill of material required for the proposed

data acquisition system with schematic and on basis of which requirement

shall be finalised in detail order.

9.18.00 All the equipment except field equipments, supplied should be properly

housed in a suitable IT rack or panel.

9.19.00 Necessary cabling including supply for binary input for status shall be in

the scope of bidder; the successful bidder shall provide sufficient technical

information for the same during execution.

9.20.00 Required cable for communication from relay, interfacing panel, PC,

networking equipment etc and cables required for status indication in

SCADA including supply, laying, termination shall be in the scope of

9.21.00 The bidder should demonstrate the offered scheme at site if demanded by

9.22.00 Procurement shall be finalised on the basis of evaluation of performance

and applicability of the system for software and hardware offered.

9.23.00 Server Make – HP/DELL with 3 year warranty

 Tower Type Server computer prefered

 1x Intel Xeon Silver 4410Y or I7 13th Generation or higher or

similar for server requirement

 1x HPE 32GB 2Rx8 PC5-4800B-R Smart Kit (32 DIMM) preferred

 HPE 1TB SATA RI SFF BC MV SSD – 2 Qty with 3-year warranty

 Windows Server 2022 or Windows 11 pro or compatible latest OS

with back up CD

 Latest Microsoft Office licence version

 Latest Antivirus with 3 year license

PUR-F-10 ET-248

 Monitor 23.5” FHD

 USB Keyboard and Mouse

 UPS for Server with minimum 20 minutes power backup

 Fire wall – Sonicwall/ Fortinet with 1 year warranty if required

 Ethernet Ports: 8x1GbE

10.00.00 DETAILS OF INSTRUMENT TRANSFORMRS, POWER

TRANSFORMRS AND GENERATOR of GTPS Unit-3 &4.

10.01.00 All available technical details—including specifications of Current

Transformers (CTs), Potential Transformers (PTs), power transformers,

generators, existing protection schemes, relay settings, and any other

relevant system data—pertaining to Gandhinagar Thermal Power Station

Units 3 & 4 shall be provided to the bidder for the purpose of detailed

engineering study.

Bidders can visit the plant to understand the existing installation and

collect necessary information. A pre-bid meeting or site visit shall be

arranged by the GTPS upon the bidder’s request to facilitate clarification of

technical queries and ensure proper understanding of site conditions.

11.00.00 PRINCIPAL TECHNICAL PARAMETERS OF RELAY & SCHEME.

11.01.00 The protective gear shall be as fast in operation as possible, so as to

maintain the maximum stability under fault conditions. The protective

scheme shall provide suitable protection for the individual equipment and

at the same time ensure proper operation of the entire protective system as

a coordinated whole. Various protective systems shall be designed to

isolate only the faulty circuits and to avoid Indiscriminate tripping of

healthy circuits. The protective scheme shall not be susceptible to

incorrect operation as a result of transient phenomenon, which may arise

during disturbances on the system.

11.02.00 The experience on various power systems in India has shown that a great

majority of system faults originate as earth faults, the no. of phase faults

being comparatively small. Special attention shall therefore, be given to the

problem of providing a reliable and high-speed earth fault protection. The

phase faults should also be cleared in minimum possible time in order to

minimise damage and to maintain synchronous stability.

11.03.00 All auxiliary relays, matching CTs, PTs and various timer relays etc. to

complete the protection scheme, shall be part of the bidder's scope of

supply. The successful bidder shall also recheck parameters of CTs and

11.04.00 The electrical protection scheme proposed to be adopted for unit

comprising of generator, GT & Aux. Transformer shall have following

11.05.00 The protection system shall comprise pre-engineered modular or discrete

self-contained system comprising multifunction numerical relays

(interfaced with computer system for Gandhinagar Thermal Power Station).

In addition to the relays/protections mentioned in this specification, any

additional protections/relays considered necessary by the Bidder for his

system shall be included and offered by the Bidder. Licensed software to

read, set, configure and analyse the relay shall also be supplied. (Along

with Computer system at GTPS free of cost).

11.06.00 DC auxiliary supply shall be supervised by supply supervising relays. The

NC contact of the relays shall be delayed on drop off by approximately

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to 200 m sec. for annunciation in CRT / Generator control desk. The relay

shall be provided with flag indicators wherever required. Supervision of

GRP DC supply availability (DC supervision relay) shall be provided.

11.07.00 The relays shall be provided with continuous self-diagnostic facilities to

indicate the location of the failed component when pre-engineered

protection system is offered. Apart from this, facilities for comprehensive

testing with external test kits shall also be provided.

11.08.00 In addition to the contacts required as per schemes, Contractor shall wire

out to the terminal block at least two NO & two NC spare contacts of each

11.09.00 The protection scheme shall include all the necessary contacts to achieve

the functions required, alarms in CRT, annunciation windows, sequence

event recorder and for Control room control panel annunciation wherever

required. Contact multiplication relays for generator circuit breaker, UAT-

A&B circuit breaker, Field Breaker and associated isolators shall be

provided for this purpose.

11.10.00 Additional Features

 The relay shall have a local friendly password-protected user man-

machine interface (MMI) comprising of a 4-5 line alphanumeric

LCD/LED display and a soft touch key pad to access the settings,

events and records in the relay.

 Optically isolated inputs & outputs (digital & analog)

 Digital signal processing

 Built-in circuit breaker failure protection

 Monitoring of CB trip circuit, CB condition and status

 Monitoring & alarming of DC failure, coil failure, other aux. tripping of

UAT, GT & Gen. and voltage balance scheme.

 Supervision of CTs & VTs

 Complete mechanical/electrical & atmospheric environmental

protection/immunity as per relevant standards.

 The protection system shall have facility to synchronize its time

generator from dedicated GPS system for time synchronization. One

dedicated master clock of GPS system shell be provided for Gandhinagar

 The protection system shall have programmable scheme logic, multiple

setting groups, programmable settings and programmable

characteristics.

 The relays/protection system shall have in-built facilities to measure

electrical instantaneous & integrated quantities, event & fault

records/disturbance records.

 Required support software for realizing full capabilities of the protection

system including programming of settings, scheme logic &

characteristics, viewing of measurements, fault diagnostics,

disturbance/fault records, depending trends & historical data, fault

analysis etc. , shall be part of supply.

Note: The specification mentioned above are as per general

technical requirement however, the bidder may offer as per their

standard product. The any deviations to this general specification

will be allowed at the sole discrimination of GSECL

11.11.00 GENERATOR PROTECTION:

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It should minimum cover following protections

 Differential protection-87G.

 Inter turn Differential protection -87GI.

 Impedance Protection by Distance protection Zones- 21G

 Negative phase sequence protection -46G

 Loss-of-Excitation protection with provision for instantaneous trip-

 Pole Slip Protection- 98G

 Low forward power protection -37G1 and 37G2

 Power Decay Relay-37

 Reverse power protection 32G

 Thermal Over Load protection- 49 G

 Over Current Protection -50 O/L

 Dead Machine protection- 94G

 100 % Stator earth fault protection (both 0-95% and 95-100%) -

 Standby Stator Earth Fault protection.-64G2

 Inter Turn Protection -95G

 Generator over voltage protection -59G. (High set , Over speed)

 Generator Under Voltage Protection – 27G

 Over and under frequency protection- 81GU & 81GO

 1st Rotor Earth Fault Protection-64 F1 (Rotor E/F Alarm)

 2nd Rotor Earth Fault Protection-64 F2 (Rotor E/F Trip)

 Gen overload-51G

 DC failure for source-I&II

11.12.00 GENERATOR TRANSFORMER PROTECTION

It should minimum cover following protections

 Restricted Earth Fault Protection -64 GTR

 Over-flux protection-99GT.

 Non Directional back –up Over Correct Protection- 51GT

 Non Directional back up neutral over-current protection- 51GTN

 Interlocked Over Current Protection

 Local Breaker Backup

11.13.00 GENERATOR, UAT AND GENERATOR TRANSFORMER PROTECTION :

It should minimum cover following protection

 Over All differential protection -87GT

 Restricted Earth Fault Protection

11.14.00 UAT PROTECTION:

 UAT-A and UAT-B over Current Protection.

 UAT-A and UAT-B Earth fault Protection.

 UAT-A and UAT-B Differential protection.

11.15.00 Shall have following Facility in 100% stator Earth fault injection

 In service / faulty (Self Supervision) LED / Flag should be there.

 Make must be SIEMENS/GE.

PUR-F-10 ET-248

 Auxiliary supply 220V DC.

 This unit work on Low frequency injection method must be

compatible with Generator Protection Relay (a).

 This protection must be stable on external fault.

11.16.00 Shall have following minimum Specification of Lockout relays.

 Auxiliary supply 220V DC.

 Heavy duty latch contact (16N/O + 4N/C) relays and (14N/O +

6N/C) relays for both unit including spare with model no

MVAJM25 or similar. Nos. of relays as per scheme requirement

and suggested by EIC.

 Relay operated Flag must be provided.

 Relay must come with robust case.

11.17.00 PROTECTION SCHEME PERFORMANCE REQUIREMENTS:

11.17.01 GENERATOR PROTECTION

(a) GENERATOR DIFFERENTIAL PROTECTION (87-G):

This protection is to detect multiphase faults in the generator. The

protection shall be high speed and immune to AC transients. The

relay shall not mal-operate due to harmonics in the spill currents

produced due to saturation of CTs during heavy through faults and to

limit voltage across the relay in the event of heavy internal fault

causing CT saturation. It shall be based on a three-phase high

impedance / low impedance circulating current principle selectable at

(b) GENERATOR BACK-UP PROTECTION (21 G):

The system back-up protection against all types of un cleared faults

in generator, main transformer & 220 KV line shall be provided by

means of a three phase two stage under impedance protection with

offset mho characteristics. Suitable time delay timers shall be

provided for grading with other devices. The element shall not operate

under maximum load conditions.

(c) NEGATIVE PHASE SEQUENCE PROTECTION (46G):

The negative phase sequence protection against rotor overheating

shall be provided by a two-stage true thermal replica relay. The

protection shall have a long inverse time characteristics and shall be

provided in each phase of the machine. The time characteristics of

the relay shall be adjustable to match I22t characteristics of the

machine. It shall be provided with thermal memory to take care on

repeated periods of unbalanced loading. The relay shall provide two

stages, one for alarm and one for trip. The alarm stage shall have a

definite time delay setting for giving early warning of an unbalanced

condition that may lead to generator tripping. The second stage for

tripping shall be based on a true thermal characteristic and shall

have adjustable time current characteristics that must be matched

with negative sequence current withstand characteristics of the

generator. A definite minimum time setting shall be provided to

ensure an adequate grading margin between the operation of the

negative phase sequence element and any downstream protection

that may respond to unbalanced faults.

(d) LOSS OF EXCITATION RELAY (40 G):

This protection function shall detect the failure of generator

excitation. It shall be provided with an adjustable, offset circular

PUR-F-10 ET-248

impedance characteristic with an adjustable tripping delay timer and

an adjustable measuring element reset time delay. The field failure

characteristic shall enclose as fully as possible the impedance orbit

corresponding to that of the asynchronous condition; however the

characteristic should be clear of the power swing loci and the limiting

generating point of the machine when under excited. The element

shall have a provision to issue an instantaneous tripping, if the

terminal voltage of the machine falls drastically The element shall

have an under voltage check feature.

(e) GENERATOR POLE SLIPPING PROTECTION (98 G):

The loss of excitation protection should be supplemented by an out of

step relay which detects slipping of poles. The relay shall be capable

of detecting a power swing which can lead to instability in addition to

its ability to detect an actual pole slip.

The pole slipping protection shall be based on apparent impedance

measurement using Blinder and Lenticular Characteristic

(adjustable). If the measured impedance as seen at the generator

terminal crosses the two halves of the lens characteristic and spends

longer than a specified time in each half a pole slip is encountered.

The timer range and lens characteristics shall be adjustable to suit

the network requirements. Two zones shall be created in the

characteristics by a reactance line which can clearly distinguishes

between pole slip occurring with a system centre with in the power

system or in the generator. Reliable detection of the first and

subsequent pole slips of the generator shall be achieved through

separate and adjustable counters to be provided for each zone. Pole

slipping protection operating on some other principle shall also be

acceptable provided it has given satisfactory service.

(f) LOW FORWARD POWER PROTECTION (37G):

The purpose of this protection is to detect a unit running at low active

power indicating fault in increase load sequence. This threshold

depends on turbine characteristic and tripping is usually delayed.

Suitable interlock shall be provided for operation during synchronous

condenser mode.

(g) REVERSE POWER PROTECTION (32G):

Reverse power relay will be used to initiate tripping in case of

motoring of machine or turbine trip. A three phase reverse power

element with a short time delay stage interlocked with turbine

tripping and a long time delayed stage independent of turbine

tripping shall be provided. The relay shall have a provision of

sensitive directional reverse power element such that sensitive

reverse power setting of 0.5% of rated power can be achieved.

Suitable provision shall be made to prevent the operation of this

element during machine start-up and synchronizing conditions.

(h) STATOR THERMAL OVER LOAD PROTECTION (49G):

This protection shall be used as an additional check of the stator

winding temperature against excessive heating due to very high

continuous overload current (thermal replica). The protection relay

must match the machine characteristics with an inverse time thermal

replica response defined by the generator supplier.

(i) OVER LOAD PROTECTION (50G):

The relay shall be single pole type having continuously adjustable

current setting range of 50-200 % and an adjustable time setting

PUR-F-10 ET-248

range 0.5 to 60 secs for givingalarm on the onset of overload. The

relay shall have a drop off/pick up ratio greater than 95 %.

(j) DEAD MACHINE ENERGISATION PROTECTION (94G):

A three phase high speed relay shall be provided for protection

against inadvertent energization of the machine at standstill. It shall

comprise of a three phase over current relay with a range 0.1 to 4In

to initiate tripping if generator terminal voltage in all three phases

falls below a set threshold value. The under voltage threshold setting

shall be variable from 0.2 to 1.0 Vnom. A pick-up timer shall be

provided to prevent initiation of the element on event of close-up

three phase faults. A drop-off timer with a setting of 500 ms shall

ensure that the under voltage detector does not reset following

accidental energisation.

(k) STATOR EARTH FAULT PROTECTION (64 G1):

Generator neutral will be connected to earth through a earthing

transformer, the secondary side of which is connected across a

resistor. The stator earth fault relay shall be connected across

secondary of transformer. Protection consisting of 0-95% & 95-100%

stator winding fault detection shall be provided. The protection

should be insensitive to external faults, transients and inherent

harmonics.0 TO 95% STATOR EARTH FAULT PROTECTION:

• For coverage of faults within about 95% of the stator winding or

better, a sensitive neutral voltage displacement function shall be

provided. The element shall be tuned to the fundamental frequency.

The element shall have a DT/Inverse time characteristic.

95 to 100% STATOR EARTH FAULT PROTECTION :

(a) Third harmonic Under voltage

• Protect 100% stator winding against earth fault in combination with

the 95% stator earth fault protection.

• Be sensitive to external faults, transients and inherent harmonic

• Shall operate on the principle of detection of change in the

magnitude/ distribution of stator 3rd harmonic voltages caused by

stator earth fault.

• Have time setting range from 0 to 100 sec. In steps of 0.01 secs.

(b.) Stator E/F protection using Low frequency injection principle

• 100% Stator Earth fault protection shall be provided by low

frequency injection principle thereby providing protection for

generator during standstill, startup and running conditions.

(l) OVER VOLTAGE PROTECTION (59 G):

This protection is designed to protect the generator against over-

voltages generated internally or externally and liable to damage the

machine.The element shall comprise of two stages, each separately

adjustable of over voltage with threshold variable from 100% to 140%

of rated voltage. The phase – phase voltage shall be measured by the

relay to prevent the element operating during rise of voltage on

downstream earth faults. The first and second stages shall have

variable time delay setting ranges of 0.5 to 5 sec and 2 to 20 sec

respectively. The relay shall have a drop-off to pick up ratio greater

(m) GENERATOR UNDER FREQUENCY / OVER FREQUENCY

PROTECTION (81U/O):

PUR-F-10 ET-248

This protection element shall prevent the running of the generating

unit from exceeding the permissible operation time at above or below

the set frequencies. Five stages of frequency protection shall be

provided. Each stage shall be independently settable as under

frequency or over frequency protection. The time delays for each stage

shall vary from 0.1 to 20 sec in steps of 0.1s. The frequency setting

range shall be variable from 45 Hz -55 Hz in steps of 0.1 Hz.

(n) ROTOR EARTH FAULT PROTECTION (64R):

This shall detect the rotor earth fault by the injection of ac low voltage

between the winding of the protected synchronous machine and the

ground providing two independent time delayed thresholds for the

resistance with measurement display. The AC injected input shall be

able to trip the system based on the injected over current or Over

voltage conditions. In case of opening of the field, there shall be a

separate provision of DC injection to detect under/over voltage and

provide tripping. The protection shall be provided which shall be of

Numerical type (Inbuilt or external to the comprehensive Generator

protection relay).

(o) INTER TURN FAULT PROTECTION (95G)

The purpose of this protection is to detect a fault between the

windings of the same phase for generators made up of several circuits

in parallel. This function shall be performed by a time delay over-

current protection connected between the natural points of each

parallel winding. According to the alternator specification, if the

generator has only common neutral of parallel circuits for each phase

brought out, the interturn fault protection shall be based on zero

sequence voltage measurement.

(p) Under Voltage function (27G)

11.17.02 GENERATOR TRANSFORMER PROTECTION:

(a) RESTRICTED EARTH FAULT PROTECTION – 64GTR:

The Restricted Earth Fault protection function shall be provided to

protect the HV winding of generator transformer against internal

faults for protected zone

Be single pole type

Be high / low impedance differential protection (Selectable at site)

Be high speed circulating current type

Be tuned to the system frequency

Be high speed with typical operating time of less than 30 ms at

Be stable for through fault & provision for preventing CT saturation,

harmonics and DC transients

Have current setting of 10-40% of rated current

Be suitably protected against high voltages.

The restricted earth fault protection shall be configurable as either

high impedance or low impedance biased differential at site.

(b) OVER FLUX PROTECTION (99 GT):

The over flux protection shall be provided to safeguard the

transformer against the operation at flux densities which may cause

damage to the core.

PUR-F-10 ET-248

Operate on the principle of voltage to frequency ratio and shall be

phase to phase connected.

Have inverse time characteristics, matching with transformer over

fluxing withstand capability curve.

Provide an independent `alarm’ with the time delay continuously

adjustable between 0.1 to 6 seconds.

Tripping time shall be governed by v/f vs. time characteristic of the

V/F setting shall be adjustable from 1.0 to 1.5 times rated flux.

Have a set of characteristics for various time multiplier settings. The

maximum operating time of the relay shall not exceed 3 seconds and

1.5 seconds at `V/F’ values of 1.4 and 1.5 times of rated values

have an accuracy of operating time, better than ± 10% Have a

resetting ratio of 95% or better, rated voltage 110V AC. 50Hz..

Provide sufficient number of potential free contacts to cater the needs

of connection to alarm annunciation. Data acquisition and optional

trip facility to be connected by purchaser where needed Includes

hand reset LED for Alarm & Trip operated indication.

(c) NON-DIRECTIONAL BACK UP GT OVER CURRENT PROTECTION

WITH HIGH SET-50/51GT.

(i) Over current protection with IDMT characteristic shall provide

backup protection for generator transformer against faults which

produce over current.

(ii) Shall have an adjustable range of 50-200 %. This shall be

connected to the HV/ Neutral bushing CT with suitable current

(d) NON DIRECTIONAL BACK UP GT NEUTRAL OVER CURRENT

PROTECTION (51 NGT):

Over current protection with IDMT characteristics shall be provided

for system earth fault. This shall be connected to the HV neutral

bushing CT with suitable current setting range.

(e) Local Breaker Backup (LBB) Protection

(f) Interlocked Over Current Protection

11.17.03 GENERATOR & GENERATOR TRANSFORMER PROTECTION

(a) OVERALL DIFFERENTIAL PROTECTION (87GT):

This relay/function shall be provided for protecting the generator and

generator transformer, HV side of Unit auxiliary transformer,

excitation transformer, 15.75 KV bus duct from power house to

generator transformer and O/H line from PH to 220KV Gantry in the

switchyard. The measurement system shall have 3 phase features

and it should be possible to detect phase faults on both sides of the

generator transformer and single phase faults on HV side. The relay

shall be biased differential protection. The relay shall be stable for

through faults and provision for preventing CT saturation. The relay

shall be immune to magnetizing inrush current and the relay shall

have features to provide stability under over excited conditions and

have 2nd and 5th harmonic restraint features.5th harmonic bypass is

not acceptable. The relay shall be triple pole type with faulty phase

identification/ indication. The relay shall be high speed with an

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operating time of less than 30 ms at 5 times the rated current. The

relay shall have an additional high set instantaneous element for

rapid clearance of heavy faults (which shall not operate during

inrush) have internal features in the relay to take care of the angle

and ratio correction. The relay shall display differential and bias

11.18.00 ADDITIONAL FUNCTIONS AND FEATURES

 Apart from the protection functions specified above, the numerical

protection equipment shall be provided with the following mentioned

functions and features:

 GT/UAT Transformer Trouble relays for OTI/WTI/Buchholz etc

are required to be included/separately for tripping &

 Breaker Trip Circuit Supervision relay is required for TC-1 &2 for

(GT bkr and Middle Bkr)

 Master Trip Relays is required for Class-A/B/C protection

 Other unit/excitation trouble relays are required to be

included/separately for tripping & annunciation

11.19.00 CURRENT CIRCUIT SUPERVISION AND FUSE FAILURE SUPERVISION

The relay unit shall give alarm or block protection functions expected

to give unwanted tripping during open or short circuited CT cores and

failure in the secondary circuits of the voltage transformer.

11.20.00 MEASUREMENT :

IED shall measure and display on line information on the local HMI

and on the Substation Automation System about:

 measured voltages, currents, frequency, active, Reactive and

apparent power and power factor

 The primary and secondary phasers

 Differential currents, bias currents

 positive, negative and zero sequence currents and voltages

 measured values and other information of the different parameters

for included functions

 logical values of all binary in- and outputs and general IED

 All measured values shall be time tagged with real clock in the

11.21.00 SELF DIAGNOSIS AND SUPERVISION:

Continuous self-diagnostics tests on microprocessor, memory, timers and

the analog input module and the stand alone relays shall be carried out by

the equipment to immediately signal any failure. Internal and external

auxiliary supplies shall in particular be continuously supervised. The self-

monitoring shall be executed through hardware and software separately

and in the event of failure, the relays shall either lockout or attempt a

recovery depending on the type of failure detected.

11.22.00 HUMAN MACHINE INTERFACE. :

The HMI shall be with LCD/LED to display at least 7 lines of text and

characters and shall include LEDs for status indication and at least

configurable LEDs for alarm indication.

PUR-F-10 ET-248

11.23.00 PROGRAMMABLE SCHEME LOGIC:

The relay should have number of logic blocks and timers to adapt the

configuration to the specific application needs.

11.24.00 DISTURBANCE REPORT:

The disturbance report shall include Timed Tagged Events, Status of

Binary Signals, Sampled data of Analogue input & Binary signals and Pre

fault & Fault values for currents, voltages.

(i) Up to 2000 number of Continuous time tagged event logging in the

Event List shall be available and 200 number time tagged events in

the Event recording per recording.

(ii) 100 Disturbance Record with a total Disturbance Recording time of

340 secs with facility for programmable pre and fault recording time.

It should be possible to save the record in a COMTRADE format for

replaying by relay test kit.

(iii) The disturbance recorder shall be with 40(External & Internal)

Analogue channels and 96 binary signals

(iv) Any digital signal can be programmed to act as trigger for the DR.

Analog channels should have programmable threshold levels for

triggers and selection for over or under levels should be possible

(v) Latest software CDs for configuring / programming / setting the

relay, extracting and analyzing the disturbance records shall be

supplied. Interconnecting cable between relay front port and local PC

shall also be supplied with the relay.

11.25.00 COMMUNICATION:

It shall have Communication ports: RS232 /Ethernet/USB/Optical port on

front side for communication with Laptop/Desktop and Optical/ Ethernet

port / RS485 at rear side for connection to substation automation system

for IEC 61850 standards. All numerical relays

Offered shall be IEC 61850 compliant. Bidder shall submit KEMA

certificate showing compliance for major functions like Buffered Reports

(6), Time synchronization (13), GOOSE (9ab), Direct Control (12a), File

11.26.00 TIME SYNCHRONISATION:

Time synchronization shall be done by dedicated GPS system to be

provided by bidder. GPS system shall have SNTP, IRIG-B & Binary input

signal, optical port for time synchronization. All these facility should be

available in the Relay/DR PC & SCADA PC.

11.27.00 BINARY INPUTS.

At least 36 number optically isolated inputs.

11.28.00 BINARY OUTPUT RELAYS:

At least 48 number independent Programmable outputs.

11.29.00 HOUSING:

Screw Terminals: (‘O’ Lug for CT Connection)

Degree of Protection: IP51

11.30.00 LAPTOP SPECIFICATION:

1. Make: - HP/Lenovo/Sony/Dell/Acer/Asus/IBM

2. Processor: - Core i7 13th gen with 4 GB Graphics or higher version

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3. RAM:-16GB or higher

4. Hard Disk: - 1TB SSD or higher

5. Screen Size: - 14” to 16”

6. Operating System: - Windows 11 Professional licence version

7. Antivirus: - Antivirus software with at least 3 year licence

8. Software: - All required software for relay communication and SCADA

with licence, software like office, PDF, software for printer should be

given with laptop.

11.31.00 FURNITURE:

1. Desktop Computer Table with Lockable Doors with exhaust fans, it

should have MCB protected power supply board with 4 nos. switch plug

arrangement with spike guard.(Quantity : Minimum 2 nos. or more as

per requirement)

2. Printer / UPS Table with Lockable Doors with exhaust fans, it should

have MCB protected power supply board with 4 nos. switch plug

arrangement with spike guard. (Quantity: Minimum 1 nos. or more as

per requirement)

3. Chairs for Desktop computer table having Adjustable seat Height, Head

support Seat lock, wheels, adjustable arm rest and locking mechanism.

(Quantity: Minimum 4 nos. or more as per requirement).

12.01.00 TYPE TEST

12.01.01 The relay offered shall be fully type tested as per the relevant

standards. Test certificate not older than 5 years shall be supplied

along with offer by the bidder.

12.01.02 The reports for following type tests shall be submitted by the bidder.

a) Insulation tests as per IEC – 60255-5.

b) High frequency disturbance test as per IEC-60255-4

(Appendix – E) Class III

c) Fast transient test as per IEC 1000-4 Level III.

d) Relay characteristics, performance and accuracy test as per

Steady state characteristics and operating time.

Dynamic Characteristics and operating time for distance

protection relays and current differential protection relays.

For Disturbance recorder and even logger only performance

tests are intended under this item.

e) Tests for thermal and mechanical requirements as per IEC-

f) Tests for rated burden as per IEC – 60255-6

g) Contact performance test as per IEC – 60255-0-20.

h) Electrostatic Discharge (ESD) Test

Standard: IEC 61000-4-2

Level: Typically Level

Purpose: Verifies immunity to electrostatic discharges.

i) Radiated Electromagnetic Field Immunity Test

Standard: IEC 61000-4-3

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Purpose: Ensures reliable operation in presence of radiated RF

j) Conducted Disturbance Immunity Test

Standard: IEC 61000-4-6

Purpose: Tests immunity to RF signals conducted along cables.

k) Surge Immunity Test

Standard: IEC 61000-4-5

Purpose: Ensures protection against high-energy transients

(e.g., lightning surges).

l) Power Supply Variation and Interruption Test

Standard: IEC 60255-11

Purpose: Tests relay performance during supply voltage dips,

interruptions, and variations.

j) EMC Emission Tests

Standard: IEC 60255-26

12.01.03 The purchaser reserves the right to demand repetition of some

or all the type test in the presence of the purchaser’s

representative. For this purpose the bidder may quote unit

rates for carrying out each type test. For any change in the

design/type already type tested and extra cost in case, the

equipment has not been type tested earlier, the entire type test

as per relevant standards shall be carried out by the successful

bidder in the presence of purchaser’s representative without

any extra cost.

12.02.00 ACCEPTANCE AND ROUTINE TESTS:

12.02.01 All acceptance and routine test as stipulated in the relevant

standards shall be conducted at the place of manufacturer in

presence of purchaser’s representative without any extra cost.

12.02.02 Immediately after finalization of the programme of type/

acceptance/ routine/ testing the supplier shall give two weeks

advance intimation to the purchaser to enable him to depute his

representative for witnessing the tests.

12.02.03 No equipments shall be dispatched before all tests and

inspection have been carried out according to the approved

quality assurance plan unless otherwise instructed by the

13.00.00 INSPECTION DURING MANUFACTURING:

13.01.00 The inspection may be carried out by the purchaser at any stage of

manufacture. The successful bidder shall grant free access to the

purchaser’s representative at a reasonable time when the work is in

progress. Inspection and acceptance of any equipment under this

specification by the purchaser shall not relieve the supplier of his

obligation of furnishing equipment in accordance with the specifications

and shall not prevent subsequent rejection if the equipment is found to be

13.02.00 The supplier shall keep the purchaser informed well in advance, about the

manufacturing programme so that the arrangement can be made for

13.03.00 The purchaser reserves the right to insist for witnessing the acceptance

routine testing of bought out items.

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14.00.00 QUALITY ASSURANCE PLAN:

14.01.00 The bidder shall invariably furnish along with his offer the quality

assurance plan adopted by him/his sub-supplies in the process of

manufacturing all major equipment/component.

14.02.00 Precaution taken for ensuring usage of quality raw materials and sub-

components shall be stated in the quality assurance plan.

14.03.00 The bidder should specifically express their consent to accept additions,

revisions to their quality assurance plan to meet the purchaser’s

requirements if needed. The final quality assurance plan to be adopted,

with mutual consent, shall be decided after discussion with successful

15.00.00 GUARANTEE:

You have to give guarantee certificate for 36 Months from the date of

receipt of material at Main store GTPS for all supplied materials &

Years for all supplied numerical relays/BCU/Injection Unit/protection

devices. If goods/equipments are found defective during guarantee period

due to bad design material or workmanship, the same should be

replaced/repair free of cost.

16.00.00 DEVIATIONS

No deviations to this specification shall be acceptable unless specifically

indicated in the offer in the relevant schedule. All deviations shall be

clearly spelt out by the Bidder and the price implications thereof. GSECL

at their discretion will decide regarding acceptance of deviation. Bidder

must furnish List of Technical Deviations mentioning the specification

clause nos. against which deviations have been sought for. Compliance

with this specification will be taken for granted in absence of any specific

mention of deviations in the said list of deviations. Any implied deviation

or any deviation mentioned elsewhere in the offer shall not be

17.00.00 DOCUMENT SUBMISSION:

17.01.00 All drawings/documents submitted by supplier shall be in sufficient detail

to indicate the type, size, arrangement, weight (as applicable) the external

connections, fixing arrangements required, the dimensions required for

installation and interconnections with other equipment and materials,

clearances and spaces required between various portions of equipment

and any other information specifically requested.

17.02.00 Drawings / Documents submitted shall be signed by responsible

representatives of the Bidder and all drawings shall be of A-3 size.

(297mmX420mm). All dimensions on drawings shall be in Metric Units,

unless otherwise specified. The details in the drawings shall be in English

17.03.00 In addition to the information provided on drawings, each drawing shall

carry a revision number, date of revision and brief details of revisions

arrived out. Wherever any revision is carried out, correspondingly revision

number must be updated. All revisions carried out shall be highlighted on

the drawing and a Separate sheet furnished stating the reasons for such

revision. A note stating drawing is generally revised is not acceptable.

17.04.00 Drawings submitted by the Bidder for approval will be checked / reviewed

by the Purchaser’ and comments, if any, on the same will be conveyed to

PUR-F-10 ET-248

the Bidder. It is the responsibility of the Bidder to incorporate correctly all

the comments conveyed by the Purchaser on the Bidder’s drawings. The

drawings which are approved with comments are to be resubmitted to the

Purchaser for purpose of records. Such drawings will not be checked /

reviewed by the Purchaser to verify whether all the comments have been

incorporated by the Bidder. If the Bidder is unable to incorporate certain

comments in his drawings he shall clearly state in his forwarding letter

such non-compliance along with valid reasons and justification.

17.05.00 Any work performed or material ordered by the Bidder prior to receipt of

drawings stamped ‘Approved with comments as noted’ by the Purchaser

shall be at the risk of the Bidder. After print of any drawing has been

returned ‘Approved’, the Bidder may release the parts covered by the

drawing, for production / construction.

17.06.00 Reproducible, where called for in the Drawing Submission Schedule, shall

be submitted after the approval of drawings. These should be of good

quality and capable of producing clear and legible prints.

17.07.00 Upon completion of the installation, the Bidder shall furnish a complete

set of drawings on reproducible form on which the Bidder shall make in a

neat and accurate manner, a complete record of all changes and revisions

to the original design, as installed in the completed work. These drawings

shall be submitted to the Purchaser.

17.08.00 Drawings prepared by the Bidder and approved by the Purchaser shall be

considered as a part of the Contract Specification. However, examination

and approval of the drawings by the Purchaser shall not relieve the Bidder

of his responsibility for engineering, design, workmanship, materials and

construction under the Contract.

17.09.00 If, at any time before the completion of the work, changes are made

necessitating revision of approved drawings; the Bidder shall make such

revisions and proceed in the same routine as for the original approval.

17.10.00 The drawing and documents which are not subject to approval shall be

stamped “FOR INFORMATION”. However, the Purchaser shall reserve the

right to comment.

17.11.00 The Bidder shall prepare and submit to the Purchaser, operation and

maintenance manuals in accordance with the Purchaser’s requirements

and in sufficient detail, for the Purchaser to get familiarized with the

equipment and to enable him to operate, maintain, dismantle, reassemble,

adjust and repair the equipment in a safe and efficient manner. O&M

Manual shall contain

i) Vendor Contact Details

ii) Storage Instruction

iii) Erection & Commissioning Instruction

iv) Operating Procedure /Instruction and Maintenance Schedule

v) List of Bought out component & sub vendor’s addresses

vi) Technical Data Sheet

vii)Leaflets of Bought Out component

vii)Drawings etc.

17.12.00 A separate section of the manuals shall be devoted to each size/ type of

equipment and shall contain a detailed description of construction and

operation, together with all relevant pamphlets, catalogues, drawings and

a list of parts with procedure for ordering spares. Maintenance

instructions shall include checking, testing and replacement procedures to

be carried out to ensure trouble-free operation.

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17.13.00 All documents including drawings, data sheets, erection and

commissioning manuals, O&M manuals shall be provided on electronic

media viz. CD’s / Pen Drive Each electronic media shall be of high quality

and suitable for long-term storage. The reproduction from media shall be

of good quality.

18.00.00 DRAWINGS / DATA / DOCUMENTS TO BE SUBMITTED BY

BIDDER ALONGWITH THE BID

18.01.00 As a minimum, the bidder shall furnish the following in two sets failing

which the bids shall be rejected.

i) Typical general arrangement drawing of the equipment showing overall

ii)Typical schematic drawing in respect of Panel , relay/scheme offered

looking to the scope , visit at site , discussion with GSECL which shall

include Analogue input , Binary Input Output , Logic , etc. on the basis of

which technical scrutiny will be made.

iii) Catalogues for equipment and fittings & accessories

iv) Operation & Maintenance Manual.

v) Schedules as per Section III.

vi) Quality assurance plan

vii) Type test reports of similar rating equipment

viii) Experience certificates of supply of identical types of equipment

ix) List of sub-vendors for purchaser’s approval.

19.00.00 DRAWINGS / DATA / DOCUMENTS TO BE SUBMITTED BY

SUCCESSFUL BIDDER

19.01.00 After issue of detailed purchase order, the successful bidder shall submit

within four weeks, four sets of complete drawings along with detailed bill

off material for approval. In normal practice, the documents submitted for

the approval will be commented upon or approved if in order, within 15 days

from the date of receipt of the same.

19.02.00 Before dispatch of equipments to consignees, the supplier is required to

submit sets of following drawings / documents in suitable files. There shall

be such five sets per equipment and shall be forwarded to (a) Three sets to

consignee before Dispatch of equipment at Gandhinagar TPS (b) one set

with equipment at Gandhinagar TPS and (c) One set to C.E. (G) GSECL

Vidyut Bhavan , Race Course, Vadodara-390007

a. Control schematics and wiring diagrams.

b. Operation and maintenance manual.

c. Commissioning manual.

d. Catalogues for all bought out items.

e. Relay setting calculation details

The manuals and test reports should be submitted in bound form suitable

for long storage with the necessary information printed on the cover page

as well as back for easy traceability. The documents not submitted in the

above manner will not be accepted.

All Erection, operation & maintenance manuals & drawings shall be

furnished in reproducible form (CDs/Pen Drive) also.

PUR-F-10 ET-248

20.00.00 DEMONSTRATION

During technical scrutiny of the bid purchaser may ask to give

demonstration of offered relay. The bidder shall demonstrate the same

within two weeks of intimation from purchaser.

21.00.00 21.00.00 PACKING AND TRANSPORT:

21.01.00 All equipment/material shall be suitably packed for transport, carriage at

site and outdoor storage during transit. The contractor shall be responsible

for any damage to the equipment during transit due to improper and

inadequate packing. The cases containing easily damageable material shall

be very carefully packed and marked with appropriate caution symbols i.e.

`FRAGILE’ `HANDLE WITH CARE’, `USE NO HOOK’ etc. The contents of

each package shall bear marking that can be readily identified from the

package list and packing shall provide complete protection from moisture,

termites and mechanical shocks etc.

21.02.00 Wherever necessary proper arrangement for attaching slings for lifting

shall be provided and all packages clearly marked with gross weight, signs

showing `UP’ and `DOWN’ sides of boxes, contents of each package, order

no. and date, name of the plant of which the material in the package forms

part of and any handling and unpacking instructions considered

necessary. Any material found short inside the intact packing cases shall

be supplied by the manufacturer/supplier without any extra cost.

21.03.00 Bidder shall ascertain, prior to shipment, from concerned authorities, the

transport limitations like weight and maximum allowable package size for

transportation. Fragile material such as relay cases, Instruments and

other glass material shall be carefully covered with shock absorbing

protective materials, such as thermocol, silica gel or equivalent moisture

absorbent material in small cotton bags shall be placed inside the packing

wherever necessary.

21.04.00 Each consignment shall be accompanied by a detailed packing list

containing the following information.

a) Purchase order reference.

b) Name of consignee

c) Details of consignment

e) Total weight of consignment

f) Handling and unpacking instructions.

g) Bill of materials indicating contents of each package

h) Sign showing upper/lower side of the crate.

22.00.00 TRAINING:

22.01.00 The successful bidder shall be required to provide facility for training, at

no extra cost to the purchaser’s six to eight engineers from Gandhinagar

thermal power station to be nominated by the purchaser for a period of

Three to Five days at his works, where the equipment offered shall be

manufactured. The training shall cover familiarization with scheme,

procedures of installation, testing, commissioning, operation, maintenance

and trouble shooting on the relays.

22.02.00 If the relay offered, is being designed and manufactured in collaboration

with any other manufacturer, the supplier shall provide facilities for the in-

plant training in the collaborators works.

PUR-F-10 ET-248

22.03.00 In case of training within India, the to and fro travel expenses, lodging and

boarding charges as well as allowances for out of pocket expenses in

respect of the trainees, shall be borne by the Purchaser. However, the

supplier shall provide suitable facilities for lodging as well as to and fro

transport to place of training from the hotel/guest house.

22.04.00 The programme of the training shall be mutually discussed and finalized

by the purchaser with suppliers.

23.00.00 SUPERVISORY INSTALLATION & COMMISSIONING:

The bidder shall depute their Engineer, technician to the site for carrying

out the retrofitting work, testing and commissioning of relays, schemes

24.00.00 GUARANTEED TECHNICAL PARTICULARS

The bidder shall fill Guaranteed Technical Particulars indicated in

Annexure which form part of the bid specification and offer. If the

Guaranteed Technical Particulars are not submitted duly filled in with

the offer, the offer is likely to be rejected.

25.00.00 GUARANTEE FOR MAINTENANCE SPARES AND SERVICES:

The bidder shall guarantee for supplying maintenance spares and

services as well as repairing of relays for a period of the life expectancy of

SIGN OF BIDDER CHIEF ENGINEER (Gen),

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1 Name of Bidder with registered office

2 Bidder’s proposal number and date

3 Telegraphic / Telex Address

4 Telephone No.

7 Name and Designation of the Official of

the Bidder to whom all reference shall

8 Project organization chart showing Yes / No

staffing, furnished?

9 List of important personnel with brief Yes / No

curriculum vitae, furnished?

PUR-F-10 ET-248

GUARANTEED TECHNICAL PARTICULARS

(TO BE FILLED IN BY THE BIDDER -FURNISH WITH TECHNICAL BID)

The GTP is to be filled up in this format and , to be submitted in duplicate along with

the offer. This is intended for speedy comparison of various bidders GTP. The Bidder

shall fill in the particulars against appropriate items in respect of each rating and

type of equipment offered in the broad categories listed below. However, bidder shall

minimum cover all the specifications mentioned in tender document.

II PROTECTION RELAY Generator

protection relay

2. Type Model No.

3. Whether Numerical measurement.

4. Auxiliary DC Voltage

5. CT input, specify whether selectable at site.

6. Specify range of setting & availability of following

(1) Generator Differential protection

(2) Generator Inter turn differential protection

(3) 100% stator earth fault protection

(4) Gen loss of excitation protection

(5) Generator rotor earth fault protection

(6) Generator low forward power protection

(7) Generator reverse power protection

(8) Generator thermal overload protection

(9) Generator over voltage protection

(10) Generator Over/Under frequency

(11) GT Over fluxing protection

(12) Generator dead machine protection

(13) Generator under impedance protection

(14) Generator pole slip protection

(15) Generator overall differential protection

(Three winding )

(16) Generator negative phase seq. protection

(17) Generator transformer REF protection

(18) Generator back up over current

(19) Generator breaker failure protection

(20) Any other protection should specify by

(21) The HMI display size.

12. Programmable scheme logics .

Nos. of ‘AND’ Logic scheme.

Nos. of ‘OR’ Logic scheme.

No of other logic scheme

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13. Burden at CT input

14 No. of setting Groups.

15. Whether Trip Circuit supervision in built.

16. CB Monitoring facility

17. Whether Broken conductor / phase discontinuity

protection in built

18. Operating Time

19. Operational Accuracy Current and Time.

20. Reset Ratio.

Other features.

21. No. of Binary inputs.

22. Out put relays with contact configuration.

23. Out put relay contact rating

Make and carry continuous

Make and carry for 0.5 S.

24. Display type and character.

26. Communication

Time synchronization.

27. Facilities through HMI

28. Disturbance recorder

Total Duration of fault recording.

Pre fault and post fault time.

No. Of records.

Duration of each record

No. of analog channel.

No. of digital channel

29. Fault records

30. Events recording capacity.

31. Self supervision facility.

32. Relay housing

Flush / Projected

Degree of protection

33. Terminal Type

Other connections

34. Temperature and humidity

Relative humidity

Operating Range.

35. Supply of software for relay programming and

extraction of disturbance records

PUR-F-10 ET-248

38. Other additional inbuilt function of the relay to

39. Any other information

40. Literature attached.

Function / Features of relay 50 LBB, Other Other

III 51GT,51NGT offered offered

Prot. Relay relay relay

1 Make , Type and Model No.

2 Auxiliary DC Voltage

3 CT input, specify whether selectable at

4. Programmable scheme logics.

Nos. of ‘AND’ Logic scheme.

Nos. of ‘OR’ Logic scheme.

No of other logic scheme

5 Burden at CT and VT input

6 No. of setting Groups.

7 Whether Trip Circuit supervision in

8 CB Monitoring facility

9 Operating Time

Other features of relay

10 No. of Binary inputs with rating

No. of Binary Out put with rating

11 Output relays with contact

12. Output relay contact rating

Make and carry continuous

Make and carry for 0.5 S.

13. Display type and character.

15. Communication

Whether suitable for any

communication scheme.

Communication Protocol available

Front port Type & No.

Rear Port Type & No.

Time synchronization , Specify port

16. Facilities through HMI , Setting

Parameterization , DR Evaluation etc.

17. Disturbance recorder

Total Duration of fault recording.

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Pre fault and post fault time.

No. Of records.

Duration of each record

No. of analog channel.

No. of digital channel

18. Fault records

19. Events recording capacity.

20. Self supervision facility.

21. Relay housing

Flush / Projected

Degree of protection

22. Terminal Type

Other connections

23. Temperature and humidity

Relative humidity

Operating Range.

24. Name of Software and purpose which

will be supplied with relay.

25. Other additional inbuilt function of the

relay to specify.

26. Any other information

27. Literature attached.

III DR Work Station

1. Software offered.

3. Type / Version No.

5. List feature / facility of the system offered.

Literature attached.

6. Type of Database used.

7. Network schematic attached offered for complete scheme.

8. Specification of PC offered. (should be of latest

9. Type of OS and Antivirus offered.

10. UPS make , model , rating , capacity , backup time

11. List of Material required for the system with qty. , rating

make , model , specification etc.

12. Any other detail to furnish.

PUR-F-10 ET-248

DEVIATIONS FROM TECHNICAL SPECIFICATION

All the deviations from this specification shall be set out by the bidder, clause by

clause, in this schedule. Unless specifically mentioned in this schedule, the bidder

shall be deemed to confirm to the specification.

Reference Description of Exceptions / Reason for Exception /

Section and Deviations Deviation

Sr. Name of the Location of Date of Performance Details of Person to

No. Purchaser / the Plant / Commission Certificate Equipment whom

Owner with Equipment ing submitted supplied & reference be

full address (Yes/No) installed made

PUR-F-10 ET-248

PERFORMANCE AND EXPERIENCE DETAIL

Bidder shall furnish here a list of similar orders executed/under execution by him

and name of persons to whom the reference may be made by the Purchaser in case

he considers such reference necessary.

LARGEST QUANTITY ORDER EXECUTED

Sr. ITEMS ORDER ITEM QUANTITY ORDER STATUS REMARKS

No SUPPLIE REFERENC S FULLY IF ORDER

. D TO E NO. & EXECUTE UNDER

DATE D EXECUTIO

LIST OF DOCUMENTS SUBMITTED WITH THE BIDS

Documents Title and Description

PUR-F-10 ET-248

LIST OF STNDARDS

Sr.No. Standard no. Title

1. IS-3231 Electrical relays for power system protection.

2. IEC-255 Electrical relays for power system protection.

3. BS – 142 Electrical relays for power system protection

4. IS – 1248 Indicating instruments.

5. BS – 89 Indicating instruments

6. IS – 6236 Recorders

7. BS-90 Recorders

8. IS – 722 Energy meters & control switches (LV Switching devices

for control and auxiliary circuits.)

9. BS – 37 Energy meters, control switches (LV Switching devices

for control and auxiliary circuits)

10. IEC-337 & Energy meters, control switches (LV Switching devices

337-1 for control and auxiliary circuits)

11. IS – 2705 Current transformers

12. IS – 3156 Voltage transformers

13. IS – 4237 General requirements for switches and control gear for

voltages not exceeding 1 kV.

14. IS – 375 Marking and arrangements for switch gear, bus bars,

main connections and auxiliary wiring.

15. BS – 152 Relay coding, auxiliary wiring and panel and wiring.

16. IS – 8686 Static protective relays

17. IS – 2147 Degree of protection for cubicles

18. IEC-297 Dimensions of mechanical structures of the 482.6mm

Part 1-3 (19)” series.

19. IS – 6875 Control switches (LV Switching devices for control and

auxiliary circuits)

20. IS – 5 Colour for ready mixed paints and channels.

21. IS – 1554 PVC insulated cables up to and including 1000 volts.

22. IS – 3842 Application guide for protection

23. IS – 9224 HRC Cartridge fuse links.

24. IS – 6005 Code of practice for phosphating iron and steel

25. IS-5578 Guide for making of insulated conductors.

26. IS – 11353 Guide for uniform system of marking and identification

of conductors and apparatus terminals.

27. IS – 9482- Characteristics values of input and outputs of single

1980 side band PLCC terminals.

28. IS- 9528 Part- Planning of (single side band) power line carrier systems.

29. IS – 10706 – Methods of tests for single side band PLC terminals.

30. IS-8997-1978 Coupling device for PLC systems (note This is to be

referred for the PLCC terminal connections.

31. IEC-686-1 Transducers

32. IS – 2206 Fuses

33. IS – 9000 Dry heat test

34. IEC – 801-4 Electrical heat transient bursts.

35 IS 694 PVC Insulated cable for working voltage up to &

including 1100 volt.

PUR-F-10 ET-248

Latest IEC Standards:

Sr.No. Standard no. Title

Electromagnetic Compatibility type test:

1. IEC-60255-22-1, Class-III, MHz burst disturbance

2. IEC-60255-22-2, Class-III Electrostatic discharge

Direct application

IEC-61000-4-2, Class-III Indirect application

3. IEC-60255-22-4, Class-A Fast transient disturbance

4. IEC-, 60255-22-5 Surge immunity test

5. IEC-60255-22-7, Class-A Power frequency immunity test

6. IEC-61000-4-8, Class-V Power frequency magnetic field

7. IEC- 60255-22-3 Radiated electromagnetic field

8. EN-61000-4-3 Radiated electromagnetic field

9. IEEE/ANSI/C37.90.2 Radiated electromagnetic field

10. IEC- 60255-22-3 Conducted electromagnetic field

11. IEC- 60255-25 Radiated emission

Insulation tests:

1. IEC- 60255-5 Dielectric test

Impulse voltage test

Insulation resistance

Environmental tests:

1. IEC-60068-2-1 Cold test

2. IEC-60068-2-2 Dry heat test

3. IEC-60068-2-3 Damp heat test, steady state

4. IEC-60068-2-30 Damp heat test, cyclic

1. IEC- 60255-26 Immunity

2. IEC- 60255-26 Emissive Test

3. EN-50178 Low voltage directive

Mechanical tests

1. IEC- 60255-21-1 Vibration

2. IEC- 60255-21-2 Shock and bump

3. IEC- 60255-21-3 Seismic

PUR-F-10 ET-248

Other Terms & Conditions

1. Contractor shall indemnify GSECL against for any injury and/or damage that

may be caused in his man or material. Moreover, the contractor shall be fully

responsible for any damage caused to the Corporation’s properties done by his

man/materials while executing the work. The Corporation will be entitled to

recover the damage from the party’s bill.

2. At any time if GSECL feels that progress of work is unsatisfactory and work

force of contractor is inadequate, other agencies/ departmental personnel will

be put in parallel for expediting the work. Amount so incurred will be recovered

from the contractor’s bill. In this case decision of the Engineer-in-charge shall

be final and binding to the contractor.

3. At any stage of the contract period, if the contractor fails to complete the job or

his work is not found satisfactory the same will be got done at his cost and risk

and additional expenditure incurred by the Corporation will be recovered from

him by giving one week's notice.

4. Sublet of contract: - Subletting the contract to another agency is not permitted

unless approved by the competent authority. However, if the contractor wishes

to sublet any portion of the work, prior approval from GSECL must be obtained.

Additionally, the contractor or subcontractor must appoint an OEM's

technically expert engineer to supervise the work on-site during its progress.

5. Details of skilled/semi-skilled persons presently employed by the contractor

having sufficient knowledge of similar jobs.

6. The bidder shall guarantee for supplying maintenance spares and services as

well as repairing of relays for a period of the life expectancy of 15 years.

7. Conditional tender will not be accepted. Withdrawal of condition

unilaterally before or after opening of tender will not be permitted.

8. The contractor has to carry out the required work strictly according to guidance

given by the Corporation's responsible officer.

9. The Corporation reserves the right whether the materials to be accepted, or not.

Only specified and scheduled materials are to be examined by Corporation's

officer and then if suitable will be accepted by the Corporation.

10. The contractor shall submit his bill in triplicate to the CE(G), GSECL, TPS,

Gandhinagar which will be paid after the certificate regarding correct receipt of

the materials in good condition.

11. In case of any dispute, the decision of the Chief engineer (Gen) is final and

bound to the bidder.

12. Revision of prices or any commercial terms affecting the price after opening of

technical bids shall not be considered and will be ignored.

13. Security deposit:- It is mandatory to submit security deposit before order

placement. Party shall have to pay security deposit of 5% of contract value on

receipt of Letter of Intent. Such Security Deposit will be payable either in D.D. /

Bank Guarantees. Bank Guarantees from Scheduled / Nationalized Banks

will be acceptable if the amount of security deposit payable exceed Rs.5,000/-.

The Bank Guarantees will be executed on the standard form prescribed by the

corporation. In case of the Bank Guarantees furnished / submitted, they

should have clear one time validity till the completion of the order in all respects

and up to the expiry of Guarantee period from the date of the work completion.

Bank Guarantee for Interim period will not be allowed. If by any reasons the

work period is extended then contractor should undertake to renew the Bank

Guarantee at least one month before the expiry of the validity failing which

GSECL will be at liberty to encash the same. CORPORATE BANK GUARANTEES

PUR-F-10 ET-248

“It shall be mandatory to submit 5% security deposit within 10 days from

the date of issue of Letter of Intent before order placement. In case when

successful bidder not at all responding within notice period or withdraws

his offer then his EMD shall be forfeited and he will not be allowed to

participate in the tenders invited from the same office for the period of

One year for that place from where tender is invited.”

If the Tenderer fails to pay the Security Deposit or defaults in execution of

the orders placed or if GSECL suffers any financial loss due to this, then

GSECL will be at liberty to adjust the amount from other orders of the

same firm or by encashing the Bank Guarantee. SD will be refunded after

submission of valid PBG.

All the costs of the stamp papers, other than required for payment is to be made

through SIDBI / ICICI by Board, are to be borne by you as per the Govt. of

India’s latest guidelines.

14. Any terms and conditions mutually agreed to writing shall be for a part of the

15. The authorized officer/person of the Corporation will have the liberty to check

the material and work etc.

16. Regarding the quality and acceptance of the jobs the authorized officer's

decision will be binding and final and no dispute on this account will be

17. General terms and conditions of the Corporation for works contract will be

made applicable for this work also.

18. No material for the said work will be supplied by the Corpn. Except specified in

schedule thereof.

 Supply: If the supply is not done within 6 months from the date of issue of LOI

or 4 months from the date of drawing approval, whichever is earlier in all

respects then the penalty will be levied as per Corporation's rules. Any delay

that may take place in supply beyond contractual cut off date shall be subjected

to penalty (not liquidated damages) at the rate ½ % of the contract price on

supply portion per week or part thereof subjected to a maximum of 10% of the

total contract value price on supply portion (i.e. End cost including GST).

 Work: The contractor must have to complete the Erection, Testing and

commissioning of GRP panel retrofitting work within 20 Days for each Unit. If

any delay that may take place in Erection, Testing and commissioning of GRP

panel retrofitting work of allotted Unit within stipulated time shall be subjected

to penalty (not liquidated damages) at the rate ½ % of the work portion of

contract price of particular unit work per day subjected to a maximum of 10%

of the total work contract value of particular unit work. (i.e. End cost including

applicable taxes if any)

20. For any type of penalty GST is applicable.

21. Statutory variations:-any statutory increase or decrease on the taxes and

duties subsequent to your offer if it takes place within the original contractual

delivery date will be to the company’s account subject to the claim being

supported by documentary evidence. However if any decrease takes place after

the contractual delivery date the advantage will have to be passed on the

22. The Contractor will have to enter into agreement with GSECL on stamped paper

of Rs. 300/- and indemnity Bond of Rs 300/- (Non-judicial) at his cost for this

23. While execution of this job our plant and auxiliaries will be in running

conditions. Hence contractor has to take all precautions for safety etc. Safety

PUR-F-10 ET-248

Shoes, Safety belts, Safety Goggles, Safety Gloves etc. also to be used wherever

necessary while working.

24. Corporation reserve the right to place the repeat order for the quantity shown in

Schedule-B within the period of one year with all the specification and terms

condition remain unchanged.

25. All the terms and conditions specified in Industrial & safety laws are binding on

26. The bidder, prior to bidding, can visit the site for assessment of supply and

works of GRP Panel.

27. The contractor has to carry out the work strictly as per the instruction of EIC.

He has to commence the work only after EIC gives clearance & after ensuring

proper power isolation. GSECL shall not be in any case responsible for any

accident to the contractor’s personnel. It is solely the responsibility of the

contractor to ensure his men’s safety.

28. Contractor has to take all necessary precaution so that no damage to the

equipment or any of the GSECL's property takes place. GSECL shall recover the

cost in the event of any damage to its property.

29. Order Validity:- The validity of this order is 30 months from the date of issue of

order however order validity may be extended by mutual agreed.

30. Contractor has to follow all the safety rules attached herewith. The general

rules and regulations of Corp. for tender and contract for work shall be

applicable. The contractor is deemed to have gone through it and considered to

be fully aware of the conditions mentioned in the book let.

31. The contractor should take care of his own persons for prevention of any type of

accident and must follow the safety rules. GSECL will not be responsible for any

accident (fatal or non fatal) to contractor's person during work and any legal

compliance arising thereafter.

32. The contractor shall be responsible for satisfactory performance. Any problem

arising shall be set right by contractor without any extra cost.

33. Unsatisfactory progress of work: In case the work of contractor is found

unsatisfactory or not progressing according to the requirement, GSECL may

take such action as deemed fit to see that the work is completed in time at

contractor's risk and cost, including termination of the contract.

34. Completion Time :-

 Supply Portion: - The time limit for the supply of material at the GTPS site

is 6 months from the date of issue of LOI or 4 months from the date of

drawing approval, whichever is earlier. Penalty will be levied as per

applicable rules in case of delay.

 Work Portion: - The retrofitting job work must be completed within 20 days

during the scheduled shutdown period. A prior intimation of 15 days will be

given before the shutdown. Failure to complete the work within the

stipulated time will attract penalties as per applicable rules.

35. TIME LIMIT EXTENSION: If the contractor shall desire an extension of the

time limit for completion of the work on the ground of his having been

unavoidably hindered in execution or any other ground he shall apply in writing

to the Executive engineer and the executive Engineer may, if in his opinion

there are reasonable grounds for granting extension recommend such extension

as he thinks necessary or proper. The decision of the competent authority in

this shall be final. However, Time Limit of order may be extended by mutual

agreed as per GSECL rules.

36. Payment Terms:

PUR-F-10 ET-248

 Supply Portion:- Payment of supply portion of schedule B will be released

at 80 % within 45 days after received and verification at GTPS store and

balance 20 % payment will be released after successful testing &

commissioning of relays. (i.e.10% of supply price on successful completion

of testing & commissioning of each unit).

 Work Portion:- Payment of Works portion of schedule B will be released at

100 % on completion of work of each unit, within 45 days after receipt of

invoice. Party has to accept payment terms as per GSECL rules only i.e. as

per actual work done. NO ADVANCE payment will be allowed. Net

Payment will be released within 45 days after completion of work and

submitting their relevant invoices.

37. Guarantee/Warranty: You have to give guarantee certificate for 36 Months

from the date of receipt of material at Main store GTPS for all supplied materials

& 10 Years for all supplied numerical relays/BCU/Injection Unit/protection

devices. If goods/equipments are found defective during guarantee period due

to bad design material or workmanship, the same should be replaced/repair

38. ‘If participating bidder/agency have stake in one or more other agencies /

bidder who are participating in same tender and on account of submission of

wrong information / declaration in the tender / enquiry certificate – A, then the

bidder will be declared as disqualified automatically and EMD / SD will be

forfeited. Further, GSECL shall take stern action including stop dealing with

39. The CE(G), GSECL, Gandhinagar, reserves right to reject/accept any or all

tenders without assigning any reasons thereof and to split up the work between

the parties as the case may be.

Chief Engineer (Gen),

GSECL: TPS: Gandhinagar.

PUR-F-10 ET-248

Additional Terms & Conditions:

(1) Details of EPF Code No. with Registration copy.

(2) Income Tax PAN No. with Registration copy.

(3) The Last three-year Annual Accounts, Positive Net worth certificate, and Average

Annual Turnover certificate shall have to be submitted.

(4) Labour Law Compliance: “The supplier/contractor shall comply with all

applicable provision of labour laws related to wages, leave, provident fund, EMP.

Compensation act, factory act, contract labour (R&A) act etc.”

(5) Bond: You will have to execute bond on non judicial stamp of Rs. 300.00 at

your cost if materials are to be supplied by the corporation/firm.

(6) Arbitration: All questions disputes or difference, whatsoever, which may at any

time arise between the parties to this contract or any matter arising out of or in

relation there to, shall be referred to the Gujarat Public Works Contract Dispute

Arbitration Tribunal Act

(7) Termination of Contract: “GSECL reserve the right to terminate the contract

(i.e. purchase/work order) at any time, without assigning any reasons,

whatsoever, by giving notice period of one month from the date of notice of

termination of the contract, supplier/contractor will not be entitled for any

compensation/damages/losses whatsoever, on account of such termination of

(8) Firm Offer: The quoted rate should be firmed and no price escalation will be

given during contractual period and extended period.

(9) Insurance: You will arrange at your own cost for insuring all the materials and

equipments by you or drawn from the corporation and also your labour etc. The

corporation will not be responsible for any loss of damage to your equipment

materials or personnel.

(10) General Terms and Conditions: All the terms and conditions enumerated in

the printed booklets attached with the tender will apply for the carrying out this

work however whenever the terms and condition enumerated in the booklet”

Tender and contract of works” conflict with those state therein the later shall

prevail over the former, In case disputes differences arises to this contracts shall

be referred to the “Gujarat Public Works Contracts Tribunal Act 1992.”

Notes for Supplier:

(1) SECURITY DEPOSIT: It shall be mandatory to submit security deposit as per

below table within 10 days from the date of issue of Letter of Intent (LOI)

before order placement. Party shall have to pay Security Deposit in the form of

Demand Draft/Bank Guarantee/RTGS/NEFT only. In case when successful

bidder is not at all responding within notice period or withdraws his offer then

his EMD shall be forfeited and he will not be allowed to participate in the tenders

invited from the same office for the period of One year for that place from where

tender is invited.

Category of the Unit Security Deposit

Order End Cost Order End Cost

Up to Rs. 5 Lakh More than Rs. 5 Lakh

Enterprise or Organization Exempted 3% of Order End Cost

which are exempted from

paying Tender Fee & EMD as

mentioned on Tender Page

For all other Enterprises 5% of Order End Cost 5% of Order End Cost

PUR-F-10 ET-248

(2) Guarantee: as per clause No. (37) of Other Terms & Conditions mentioned

under Technical Bid. .

(3) Performance Bank Guarantee (Applicable): The supplier/contractor/party (i.e.

tenderee) has to give 5% of order end cost as a Bank Guarantee with validity

period of additional 01 (one) month i.e. more than actual Guarantee/Warranty

period of 36 months from the date of receipt of material at site to safeguard

Company’s interest in case of any eventuality happening on the last day of the

Guarantee/Warrantee period after office hours of the Bank or Bank Holidays.

(4) The GSECL reserves the right to prefer overall lowest party, to reduce/enhance

the tender quantity as per GSECL’s requirement at the time of finalization of

tender. GSECL also reserves the right to close the Tender at any time, without

assigning any reasons, whatsoever. Tenderers will not be entitled for any

compensations/ damages/losses, whatsoever, on account of such cessation of

(5) GSECL reserves the right to terminate the Contract (i.e. Purchase order) at any

time, without assigning any reasons, whatsoever. Suppliers will not be entitled

for any compensations/damages/losses, whatsoever, on account of such

termination of the Contract.

(6) Delivery Period: As per Technical Bid. Bidder should accept delivery period as

per GSECL requirement and same should be confirmed in Technical bid. The

party has to submit required documents within 10 days and delivery period will

be start from the date of issue of LOI. If party does not submit the documents

within specified time, necessary action may be initiated as per GSECL rules.

(7) Penalty: as per clause No. (19) of Other Terms & Conditions mentioned

under Technical Bid.

(8) Outside Gujarat material should come through RR sale at destination (i.e.

(9) Payment Term : Payment will be made by the GSECL directly to you as per

clause No. (36) of Other Terms & Conditions mentioned under Technical

Bid. Amount of GST and applicable cess will be kept under retention till

submission of documentary proof of payment of GST or till reflection of amount

of GST in GST return after due verification.

Additional Note: Vendor get to register in VMS System through vms.guvnl.com.

For registration following documents are required and mail to

[email protected] and [email protected]. After registration vendor

have to upload the invoice in the VMS system for smooth functioning of payment.

Documents required for Registration:

(2) GST Certificate Copy

(4) Full Name of Vendor

(10) Supplier shall have to submit all the necessary documents like material Test

certificate, other required test certificates, guarantee certificate, invoice etc along

with supply as per the order terms. Payment will not be processed without

required documents.

(11) REPEAT ORDER: GSECL reserves rights for the placement of repeat order @

% of the order quantity/value of A/T at the same prices, Terms and Conditions

stipulated in the original contract within 6 (Six) months of the order. In special

circumstances GSECL reserve the right to place repeat order up to 100% of the

original quantity of the A/T at the same prices, Terms and conditions stipulated

in the original Contract as mutually agreed upon.

PUR-F-10 ET-248

(12) In case of submission of Bank guarantee against Earnest Money Deposit/

Security Deposit/ Performance Guarantee following changes must be look

into by supplier/ contactor and followed by bank.

(a) There should be claimed period of at least one year after expiry of the bank

(b) For lodgment of claim for invocation of bank guarantee, the clause should

specifically state that said bank guarantee can be presented by GSECL at

the local branch of the issuing bank.

(c) The invocation of BGs a written application from the GSECL should be

sufficient for lodgment of our Claim.

(d) On receipt of original bank guarantee a written confirmation should be

obtained by GSECL from the issuing bank.

(e) GSECL shall accept bank guarantee issued by the bank as per approved

bank list mentioned in tender copy.

(f) E-BG is acceptable.

(13) Purchase Agreement:

The supplier shall have to enter into a ‘Purchase Agreement’ with GSECL. This

purchase Agreement has to be executed on Non-Judicial stamp paper of Rs.

300/- duly notarized.

The cost of Non judicial stamp & Notary charges will be borne by supplier.

Format for the Agreement is attached in the tender.

The Purchase Agreement shall be signed by the authorized representative and