tamil nadu transmission corporation limited tender...

TANTRANSCO Ltd. Spec.no.P&C. 971

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TAMIL NADU TRANSMISSION CORPORATION LIMITED

TENDER SPECIFICATION FOR

“SUPPLY AND COMMISSIONING OF C&R PANELS WITH

SAS FOR 230 kV/110 kV SUB STATIONS UNDER R&M

PROGRAMME ”

TANTRANSCO SPECIFICATION NO.P&C-971 dt. 18.11.2015

Office of the Chief Engineer, Protection & Communication,

I Floor, 5B-Block, 144, Anna Salai,

Chennai-600 002. TAMIL NADU.


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I N D E X ----------------------------------------------------------------------------------------------------------------- SL.NO ITEM DESCRIPTION PAGE NO. -----------------------------------------------------------------------------------------------------------------

1. FOREWORD 5

2. SECTION-I : Earnest Money Deposit 7

3. SECTION-II : Bid Qualifying Requirements 9

4. SECTION-III : Rejection of Tender 10

5. SECTION-IV : Instructions to Tenderers 11

6. SECTION-V : Commercial 18

7. SECTION-VIA : Technical : General 30

8. SECTION – VIB: Technical Specification for C&R panels 36

9. SECTION – VIC : Technical Specification for SAS 69

10. SECTION – VIC : Bills of Materials 91

11. SECTION-VII : Formats

SCHEDULE-A : Price Schedule 109

SCHEDULE-B : Schedule of Equipment & Delivery Period 112

SCHEDULE-C-I : Deviation from Technical Specification. 112

SCHEDULE-C-II: Deviation from Commercial Specification. 113

SCHEDULE-D : Statement of previous Supply Orders. 113

SCHEDULE-E : Declaration Form. 114

SCHEDULE-F : GUARANTEED TECHNICAL PARTICULARS 115

SCHEDULE-G : Type Test particulars. 131

ANNEXURE - I : Undertaking towards jurisdiction of legal proceedings 132

ANNEXURE -II : Sales Tax Certificate 133

ANNEXURE III : Undertaking in Lieu of EMD. 134


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TANTRANSCO

SPECIFICATION NO. P & C – 971, dt. 18.11.2015

* * *

F O R E W O R D

1) Name of the work : “Supply And Commissioning Of C&R Panels With SAS For 230 kV/110 kV Sub Stations

Under R&M Programme” 2) Due Date and time for : 2.00 p.m on 30.12.2015 receipt of Tender 3) Due date and time for : 2.00 p.m on 30.12.2015 opening of Tender 4) (a) Earnest Money Deposit (EMD) : Rs.11,00,000/- (or) (b) Permanent EMD : Rs.20,00,000/- and above in TANTRANSCO Ltd. 5) Tenders form should be : TANTRANSCO LTD addressed to Through The Chief Engineer/P&C, I Floor, 5-B Block,144, Anna Salai, Chennai-600 002. 6) Address to which sealed : Superintending Engineer/Design envelope should be forwarded Protection & Communication, II-Floor, MLDC Block, 144, Anna Salai, Chennai-600 002. 7) Required number of Tender copies : Duplicate 8) Place at which tender will be opened : O/o the Superintending Engineer/ Design/Protection and Communication,

2nd Floor, MLDC Block, 144, Anna Salai, Chennai-600 002. 9) Cost of Specification : Inside & outside Tamil Nadu - Rs.10,000/- Rs. 100/- extra if required by post.

10) Tender system adopted : Two part (open Tender)

11) Period of contract : One year from the date of acceptance of LOA 12) Delivery period : Delivery of materials ordered shall be completed

within three months from the date of receipt of indent from TANTRANSCO. The delivery period for works items is one month from the date of receipt of indent from the TANTRANSCO.


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13) Pre-bid Meeting : Will be held on 07.12.2015 at 11.30hrs. 14) Specification at TNEB website : The tender specification will be placed at Tantransco

website (www.tantransco.gov.in) and TN Govt.

website.(www.tenders.tn.gov.in). The prospective

bidders may download the same. In such case, the

bidders need not pay the cost of specification

other wise tender specification shall be obtained

from the office of the tender inviting authority or

other authenticated officers on payment of

cash/Demand draft in favour of the TANTRANSCO

collection account, Chennai-2 for the specification.

***


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SECTION – I EARNEST MONEY DEPOSIT

1) Tenderer should pay the specified amount towards Earnest Money Deposit, as follows.

Earnest Money Deposit: Rs. 11,00,000/- (Rupees Eleven lakhs only). The Earnest Money Deposit specified above should be in the form of DEMAND DRAFT/

BANKER’S CHEQUE for the above amount drawn on any Nationalised/ Scheduled / Foreign Banks with Branches in India in favour of the TANTRANSCO collection account, Chennai-2, payable at Chennai.

2) (i) The EMD will not carry any interest.

(ii) Firms having Permanent EMD with TANTRANSCO at Headquarters for an amount

equal to Rs.20,00,000/- and above in TANTRANSCO LTD are exempted from

payment of Earnest Money Deposit. Such tenderers should enclose the copy of the

PEMD certificate issued by the TANTRANSCO. The original PEMD certificate should

be produced for verification on demand by the purchaser if warranted. 3) The Earnest Money Deposit will be refunded to the unsuccessful tenderers on application

to the Superintending Engineer/Design/Protection & Communication after intimation of

the rejection/ non-acceptance of their tender is sent to them. 4) CHEQUE/BANK GUARANTEE will not be accepted towards E.M.D. and the tenders shall

be rejected if EMD is not paid in the prescribed manner. 5) The following categories of industries are exempted from payment of Earnest Money

Deposit.

(a) The Small Scale Industrial units located within the State and Registered with the

Tamil Nadu Small Industries Development Corporation.

(b) The Small Scale Industrial units located within the State and Registered with National

Small Industries Corporation.

(c) The SSI units holding Permanent Registration certificate from the District Industries

centers of Directorate of Industries and Commerce in respect of those items for which

the Registration Certificate has been obtained.

(d) Department of the Government of Tamil Nadu.

(e) Undertakings and Corporations owned by Government of Tamil Nadu.

(f) Labour Contract Co-operative Societies of Government of Tamil Nadu.

(g) Tiny Industries classified under SSI registered with the State of Tamil Nadu and

Registration Certificate issued by Department of Industries and Commerce/Government

of Tamil Nadu.

(h) Small Scale Industrial Units located outside the Tamil Nadu State but registered with

National small Industries Corporation in respect of the items manufactured by them.

(i) The Exemption from payment of EMD is also extended to the tenderers who have

furnished Entrepreneur memorandum Part II and acknowledgement issued by the District

Industries Centers concerned.

(j) In case of investment held by SSI in plant & machinery as per their financial statement of

accounts exceeds Rs. 5 crores, the General Manager, District Industries centre concerned

shall be requested to verify the SSI status of the firm. NO PRICE PREFERENCE SHALL

BE EXTENDED TO DOMESTIC SSI UNITS AND PUBLIC SECTOR UNDERTAKINGS

OF THE GOVERNMENT IN EVALUATING THE OFFERS.


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NOTE: SSI units having provisional registration certificate are not eligible for EMD

Exemption.

6) Those Tenderers who are exempted from payment of EMD shall furnish, in lieu of EMD,

an undertaking on a non-judicial Stamp paper of value not less than Rs.80/- (Rupees Eighty

Only) to the effect to pay as penalty an amount equivalent to EMD or an amount equal to

the actual loss incurred whichever is less in the event of non-fulfillment or non-observance of

any of the conditions stipulated in the contract consequent to such breach of contract. The

State Government, Public Sector undertakings who are exempted from payment of EMD

should also pay as penalty an amount equivalent to the amount fixed as security deposit in

the event of non-fulfillment or non-observance of any of the conditions stipulated in the

contract. TENDERS RECEIVED WITHOUT THIS UNDERTAKING WILL NOT BE OPENED.

7) Small Scale Industries registered within the State of Tamil Nadu shall enclose Photostat

copy of their Registration Certificate showing the subject materials specifying capacity which

they are permitted to manufacture and the period of validity of the certificate as proof of

eligibility for exemption from payment of EMD in a sealed outer sealed cover or in “A” cover

as specified in Clause - 2.

8) Others viz. Central and Other State Government Departments, Undertakings and

Corporations other than Tamil Nadu shall have to pay Earnest Money Deposit.

9) The Earnest Money Deposit, proof of Permanent Earnest Money Deposit or proof of

exemption shall be placed in the outer sealed cover or in “A” cover but not in “B” cover.

Envelope – “A”, Envelope – “B” shall be enclosed in an overall envelope and the Earnest

Money Deposit/Permanent Earnest Money Deposit proof or proof of exemption from paying

Earnest Money Deposit shall be enclosed either in “A” Cover or inside the outer cover and

shall be sent to reach the prescribed officer. At the time of opening the tenders, any offer

which does not satisfy the EMD conditions will not be read out.

10) The Earnest Money Deposit made by the Tenderer will be forfeited if:-

a) He withdraws his tender or backs out after acceptance.

b) He withdraws his tender before the expiry of validity period stipulated in the specification

or fails to remit the security deposit.

c) The tenderer violates any of the provisions of these regulations contained herein.

d) The tenderer revises any of the terms quoted during the validity period.

e) In the event of the documents furnished with the offer being found to be bogus or the

documents contain false particulars, the EMD paid by the tenderers will be forfeited in

aaddition to blacklisting them for future tenders/contracts in TANTRANSCO.

f) If the permanent EMD holder back out an amount equivalent to EMD for this tender will be

forfeited.

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SECTION – II The BIDDER shall become eligible to bid on satisfying the following “BID QUALIFICATION REQUIREMENTS” and on production of the required documentary evidences along with the Tender.

1. The bidder should be a manufacturer with at least three years of experience in

the Design, manufacture and supply of substation automation system with

control & relay panels based on IEC 61850 protocol to any SEB/Public

undertaking/power utility for application in 220kV/230 kV or higher voltage

rated substation in India. Necessary proof for compliance to the afore

mentioned bid qualification requirement shall be furnished which shall include

ISO certificate, Certificate of registration , Memorandum of association, End

user certification/ letter to prove the aforementioned experience etc.

2. The bidder should have tested and commissioned the Substation automation

system (SAS) based on IEC 61850 Protocol for at least one number

220kV/230kV or higher voltage rated substation of SEB/Public undertaking/

power utility in India during the last five years from the date of tender

opening. The aforementioned SAS should have been supplied by the bidder and

should be in satisfactory performance for at least one year during the last five

years from the date of tender opening. Necessary proof in this regard should be

furnished with authentication of the end user.

3. Annual turnover of the bidder shall be more than Rs.2.75 Crores during any

one of the last three financial years i.e. 2014-15, 2013-14 and 2012 - 13. The

bidder shall furnish either the Annual Turnover Certificate issued by the

Chartered Accountant or Audited Annual Statement of Accounts (or) the

attested copy of Income tax return filed by the bidder (or) the attested copy of

sales tax clearance certificate for the respective period as above.

Note: 1.The offers of the bidders not satisfying the above mentioned bid qualification

requirements will be summarily rejected. 2.All the bid documents furnished towards compliance of bid qualification

requirements should be clearly segregated folder-wise/divider with respect to compliance for each of the BQR’s. All the copies of documents furnished as documentary proof for compliance with BQR’s should be duly attested by a Notary public.


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SECTION – III REJECTION OF TENDERS

I. Tender will be SUMMARILY rejected if,

a) The EMD requirements are not complied with. b) Not satisfying Bid Qualification Requirements.

II. Tender is LIABLE to be rejected, if it is:

(a) not covering the supply of equipments/materials with all Accessories and works.

(b) With validity period less than that stipulated in this specification.

(c) not in conformity with TANTRANSCO’s Commercial terms and conditions,Technical

Specifications, Type test requirements (Section - V & VI).

(d) not properly signed by the tenderer.

(e) Received from a tenderer who is directly or indirectly connected with Government

Service or TANTRANSCO Service or TANGEDCO or TNEB Ltd or Service of local

authority.

(f) From those who have not purchased the copy of the Tender document or not

downloaded from the Website (TANTRANSCO & Govt.)

(g) From any black listed or banned Firm or Contractor.

(h) Received by Telex/Telegram / E-Mail.

(i) From a tenderer whose past performance/Vendor rating is not satisfactory.

(j) Not containing all required particulars as per Schedule - A to G.

(k) Received after the expiry of the due date and time.

(l) Submitted without the Taxpayer identification number (TIN) of the bidder.


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SECTION – IV INSTRUCTIONS TO TENDERERS

1.0. Sealed tenders in Two Part System (a) Technical Bid with Commercial terms but

without Price Bid and (b) Price Bid (both bids in duplicate) will be received for and on behalf

of TAMILNADU TRANSMISSION CORPORATION LIMITED, herein after referred as

TANTRANSCO, so as to reach on or before the due date prescribed. All the tenders shall be

prepared and submitted strictly in accordance with the Instructions set forth herein. THE

TENDERERS WHO DO NOT FULFILL THE “BID QUALIFICATION REQUIREMENTS” AS PER

SECTION – II NEED NOT PARTICIPATE IN THE TENDER. OFFERS NOT SATISFYING THIS

"BID QUALIFICATION REQUIREMENTS” WILL NOT BE CONSIDERED AND WILL BE

SUMMARILY REJECTED.

1.1. The Tamil Nadu Transparency in Tenders Act 1998 and Tamil Nadu Transparency in Tender Rules 2000 are applicable to this Tender. 2.0. SCOPE OF SUPPLY AND WORKS: (i) The scope of supply of the material (described in Schedule-A) includes design,

manufacture, Factory acceptance tests, packing and delivery of the materials as

detailed herein at TANTRANSCO stores/Site anywhere in Tamil Nadu.

(ii) The scope of works includes installation, testing and Commissioning (described in

Schedule - A) of complete substation automation system for respective substation. The

testing and commissioning of SAS is inclusive of system integration of control and protection

panels.

TRAINING SCOPE:

Training shall be imparted at works and at site as described below.

a) Training at supplier’s works (Appicable for each sub-station)

Minimum one week training for two batches of TANTRANSCO’s engineers at the manufacturer’s works with lectures and hands on training on complete SAS & protection relays. This training shall be imparted prior to commissioning of SAS & protection system. Training shall be organized in group(s) wherein each group shall comprise at least 5 trainees. All relevant training material, tools and equipments shall be provided for each trainee towards this training. The training shall cover the technology, principle of operation, functions etc of the protection relays and SAS devices. Training content should be furnished to TANTRANSCO for obtaining concurrence prior to training schedule.

All expenses for trainees towards boarding, lodging, travel , travel insurance etc to attend

the training program is in the bidder’s scope. In this context charges of any kind shall not be

levied to TANTRANSCO.


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b) Training at site (Applicable for each sub-station):

Comprehensive hands on training of TANTRANSCO engineers at site should be imparted as follows:

i. For 1 batch of 5 engineers oriented for operations of SAS & protection system. This training shall be imparted after commissioning of SAS.

ii. For 1 batch of 5 engineers oriented for Testing, commissioning & maintenance of complete SAS & protection relays. This training shall be imparted after installation of SAS & protection system. This training should be implemented to enable the trainees to configure, trouble shoot all the SAS devices including numeric relays, BCU etc for rectification of faults and prepare the trainees to use all the configuration tools for all of the SAS devices. The training should enable the trainees to carry out the necessary modifications in SAS for bay extensions / deletion/modifications etc.

All expenses of the training instructor for executing the training at site is in the bidder’s scope.

Delivery receipt signed by the trainees deputed should be furnished towards completion of

training at works and at site. Training scope is included under the commissioning of SAS.

iii) General:

All the works shall be carried out with the witness of the concerned TANTRANSCO engineer

and the completion of the works should be certified by the concerned TANTRANSCO

engineer.

iv) Scope of system integration of control and protection panel (Applicable for optional price

item only ):

All necessary modifications in the hardware and software in the SAS servers, all LANs with

relevant cables, Engineering work station, Metering PC to integrate the control and

protection panel of any make.

All the updated ICD,SCD,CID,SSD files shall be provided in CD to TANTRANSCO.

All necessary configuration in the numerical relays, IEDs, Electronic meters in the control and

protection panel of any make to integrate these devices with the SAS offered by the bidder.

3.0. SUBMISSION OF TENDER OFFER: 3.01. The Tenderer is expected to examine all instructions and Schedules detailed in the Specification and submit the Schedule of prices and other required particulars in the schedules and drawings called for in this specification, only as per the formats prescribed, herein. 3.02 The bidder must quote for all the listed items in the price schedule. 4.0. TWO PART TENDER:

4.01. The Tenders shall be in Two Parts as detailed below, each in a separate sealed

Envelope marked,

" ENVELOPE- A " AND " ENVELOPE - B"

1. The first envelope, called “ Envelope – A ” shall contain :

a) DD / BC towards EMD, proof of exemption from payment of EMD & proof of PEMD and

Un-priced bid as per Schedule B, C-I, C-II, D, E & G (i.e. Technical Bid with commercial

terms except price.)


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b) Any other information called for in the specification other than price. THIS ENVELOPE -

“A” SHOULD NOT CONTAIN ANY PRICE BID. 4.02. The second envelope, called Envelope-B, shall contain the PRICE BID only as per Schedule – A. 4.03. The Tender in two parts shall be prepared in duplicate and put in a separate, sealed, superscripted envelope (Envelope-A and Envelope-B) as instructed above. 4.04. Envelope- A and Envelope-B shall be enclosed in an overall envelope and the

Earnest Money Deposit/Permanent Earnest Money Deposit proof or proof of exemption from

paying EMD shall be enclosed either in “A” Cover or inside the outer cover and shall be sent

to reach the prescribed officer.

The EMD in approved FORM (DD/BANKERS CHEQUE/COPY OF PEMD CERTIFICATE), Proof of

Permanent EMD (OR) Proof of exemption from payment of E.M.D. along with

UNDERTAKING in lieu of EMD as per FORMAT in SCHEDULE-F shall be placed in the outer

sealed cover or in “A” cover but not in “B” cover.

At the time of opening the tenders, any offer which does not satisfy the EMD conditions will

not be read out. 4.05. Envelope-A and Envelope-B and the overall envelope should be individually sealed,

superscripted with the Specification number, materials offered and due date of submission

and addressed to the Chief Engineer/Protection & Communication, TANTRANSCO Ltd,

Chennai. 4.06. The Tender offers in complete shape in one envelope containing Envelope – A and

Envelope-B, as required in Clause 4.03 shall be sent so as to reach the Superintending

Engineer/Design, Protection & Communication, II Floor, MLDC Block, Electricity Avenue, 144,

Anna salai, Chennai – 600002 on or before 2.00 P.M on the due date for submission of

offers. 4.07. The Tender documents shall be addressed to the Chief Engineer, Protection &

Communication, TANTRANSCO Ltd, Chennai. 4.08. Envelope “A” of those bidders who satisfy the requirement of Earnest Money Deposit

will only be opened on the due date and time already mentioned. If any of the Bidders

indicate price in Envelope – A, the Bid will not be read out and will be rejected.

4.09. Envelope “B” will not be opened at the time of opening Envelope “A” but will be

authenticated in the covers by officers authorized to open the bids. Envelope “B” so

authenticated will be kept under the safe custody of the empowered officer to open the

tender. Envelope “B” Price Bid will be opened later, the date of which will be intimated to

the tenderer at a later date, after technical evaluation of the tender is completed. 4.10. If the tenderer finds any ambiguity in any of the terms and conditions stipulated in this

specification, he shall get it clarified, at least 48 hours before opening of the tender, from

the Chief Engineer/ Protection & Communication, TANTRANSCO Ltd and send the queries for

clarifications to The Superintending Engineer/ Design, Protection & Communication, II Floor,

MLDC Block, Electricity Avenue, 144, Anna salai, Chennai – 600002 or FAX to (044)

28521210 or email to [email protected] with a copy to [email protected] , If this is


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not done and subsequent to the opening of the tenders, it is found that the doubt about the

meaning or ambiguity in the interpretation of any of the terms and conditions stipulated in

the specification are raised by the tenderer, either in this tender or by a separate letter, the

interpretation or clarification issued by the Chief Engineer/Protection & Communication,

TANTRANSCO Ltd on such of those terms and conditions of the Tender Document as may be

raised by the tenderer shall be final and binding on the tenderer. 4.11. All offers shall be prepared by typing or printing in the formats enclosed with the

specifications. One original and one duplicate of the original proposal, which are identical,

shall be submitted by each tenderer. 4.12. All information in the offer shall be in ENGLISH only. It shall not contain

interlineations, erasures or over writings except as necessary to correct errors made by the

tenderer. Such erasures or other changes in the tender document shall be attested by the

person signing the tender offer. 4.13. The offer shall contain full information asked for in the accompanying schedules and

elsewhere in the specification. 4.14. The tenderer has the option of sending the offer by Registered Post or submitting the

same in person so as to reach by the date and time indicated. 4.15. In case of postal delivery, tenderers are advised to send them well in advance so

that they are delivered before the prescribed date and time. 4.16. The tenders delivered in person/courier shall be handed over to the

Executive Assistant to The Superintending Engineer/Design/Protection &

Communication, II Floor, MLDC Block, Electricity Avenue, 144, Anna salai,

Chennai – 600002 before 14.00 hrs. on the due date for bid submission. 4.17. The TANTRANSCO will not be responsible for any postal or other transit loss or delay in

receipt of the tender offer. 4.18. Telex/Fax/E-Mail or telegraphic offers will not be entertained and will be rejected. 4.19. Any offer received by the TANTRANSCO after the due date and time specified for

submission of tender will be declared late, rejected and returned unopened to the tenderer. 4.20. No tender offer shall be allowed to be modified subsequent to the deadline for

submission of tender offers. 4.21. Tenderer shall bear all costs associated with the preparation and delivery of the offers,

and the TANTRANSCO will in no case be responsible or liable for these costs. 4.22. No offer shall be withdrawn by the tenderer in the interval between the deadline for

submission and the expiry of the period of validity specified/extended validity of the tender

offer. 4.23. The Tenderers are requested to furnish the exact location of their factories with

detailed postal address, Pin Code, Telephone and Fax Nos. etc., in their tender so as to

arrange inspection by the TANTRANSCO if considered necessary. 4.24. Joint ventures/Consortiums are not eligible to participate in this tender.


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4.25. Tenderers shall indicate in their tender whether the company is potentially sick

industrial companies in terms of sec.23 or sec.15 of sick industrial companies special

provisions Act.1985. Further failure to furnish the above information will make the tender

liable for rejection.

5.0. TENDER OPENING:

5.01. The Tender offers except price Bid will be opened at 14.00 Hrs. on the date notified, at

the Office of the Superintending Engineer/Design/Protection & Communication, 2nd Floor,

MLDC Block, Electricity Avenue, 144, Anna Salai, Chennai – 600 002 in the presence of

tenderer’s authorized representative who may wish to be present on the date of opening.

5.02. If the last date set for submission of tender offers and opening date happens to be a

holiday, the tenders will be received and opened on the succeeding working day, without

any change in the timings indicated. 5.03. The duly authorized representatives of the tenderers who are present shall sign the

tender opening register. 5.04. The Tenderer’s Name, prices, all discounts offered, and such other details as the

TANTRANSCO, at its discretion, may consider appropriate will be announced and recorded at

the time of tender opening.

6.0. INFORMATION REQUIRED AND CLARIFICATIONS:

6.01. To assist in the examination, evaluation and comparison of tender offers, the

TANTRANSCO may, at its discretion, ask the tenderer for a clarification of his offers. All

responses to requests for clarification shall be in writing and to the point only. No change in

the price or substance of the offer shall be permitted. 6.02. The TANTRANSCO will examine the tender offers to determine whether they are

complete, whether any computational errors have been made, whether required sureties

have been furnished, whether the documents have been properly signed and whether the

offers are generally in order. 6.03. The Tender offers shall be deemed to be under consideration immediately after they

are opened and until such time official intimation of award/rejection is made by the Tender

Accepting Authority to the tenderers. The Tenderers shall not make attempts to establish

unsolicited and unauthorised contact with the Tender Inviting Authority, Tender Accepting

Authority or Tender Scrutiny Committee after the opening the tender and prior to the

notification of the award and any attempt by any tenderer to bring to bear extraneous

pressures on the Tender Accepting Authority shall be sufficient reason to disqualify the

tender. 6.04. Mere submission of any offer connected with these documents and Specification shall

not constitute any agreement. The tenderer shall have no cause of action or claim against

the TANTRANSCO for rejection of his offer. The TANTRANSCO shall always be at liberty to

reject or accept any offer or offers at its sole discretion and any such action will not be called

into question and the tenderer shall have no claim in that regard against the TANTRANSCO. 6.05. The Tamil Nadu Transparency in Tenders Act 1998 and Tamil Nadu Transparency in

Tender Rules 2000 are applicable to this Tender.


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7.0. EVALUATION AND COMPARISON OF TENDER OFFERS:

7.01. The tender offers received for consideration will be examined to determine whether

they are in complete shape, all data required have been furnished, the tender offer is

properly signed and are generally in order and whether the tender offer conforms to all the

terms and conditions of the Tender document without any deviation. 7.02. For the purpose of evaluation of the tender offers, the following factors

will be taken into account for arriving at the evaluated price.

a) The quoted price will be corrected for Arithmetical errors.

b) In case of discrepancy between the prices quoted in words and in

figures, Lower value of the two will be considered. 7.03. The evaluation shall include all central duties such as Excise and Customs duties and

CST/TNVAT as detailed below:

i) In evaluation of an imported item, the price has to be determined inclusive of customs

duty.

ii) In evaluation of the price, articles which are subject to excise duty the price has to be

determined inclusive of such excise duty.

iii) In a tender where all the tenderers are from within the state of Tamil Nadu or where all the tenderers are from outside the state of Tamil Nadu, the sales tax or VAT shall be included for the evaluation of the price and in a tender where the tenderers are both from the state of Tamil Nadu as well as from the outside state of Tamil Nadu, the TNVAT quoted shall be excluded for the evaluation of price. 7.4 The offers will be evaluated as a whole. The lowest evaluated price will be accepted. The optional price item in schedule-A will not be considered for evaluation. 7.5 Tenderers shall quote for all the tendered items. 8.0. VALIDITY: 8.01. The Tender offer shall be kept valid for acceptance for a period of 180 days from

the date of opening of offers. The offers with lower validity period are liable for rejection. 8.02. Further, the tenderer shall agree to extend the validity of the Bids without altering the

substance and prices of the Bid for further periods, if any required by the TANTRANSCO. 9. 0. RIGHTS OF THE TANTRANSCO

Notwithstanding anything contained in this specification, the TANTRANSCO reserves the

right to:

a) Accept the lowest tender.

b) Revise the quantities to the level of +/-25% in either way at the time of placing orders.

c) Reject any or all the tenders or cancel without assigning any reasons there for.

d) To split the Tender Quantity and place orders on one or more than one Firm to meet the

delivery requirements.

e) Recover losses if any sustained by TANTRANSCO, from the supplier who pleads inability

to supply and backs out of his obligation after award of contract. The Security Deposit

paid shall be forfeited.

f) To cancel the orders for not keeping up the delivery schedule.


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g) To reallocate the materials and works of a particular substation in this tender to any other

substation of TANRANSCO in Tamilnadu without increase in prices of respective items.

10.0 DEVIATIONS:

10.01. The tenderer shall furnish, if there are any deviations in the commercial and technical

terms in the Schedules C-I & C-II Annexed. Deviations mentioned elsewhere will not be

considered. If no deviations are furnished, it will be construed that the tenderer is accepting

all terms specified in the specification. Similarly, if any deviations are furnished in the said

schedules, it will be construed that these are the only deviations and the tenderer is

accepting all other terms of the specification and the offer will be taken for evaluation

accordingly. 10.02. THE OFFERS OF THE TENDERERS WITH DEVIATIONS IN COMMERCIAL TERMS AND

TECHNICAL TERMS OF THE TENDER DOCUMENT ARE LIABLE FOR REJECTION.

10.03. NO ALTERNATE OFFER WILL BE ACCEPTED.

10.04. Any attempt by any tenderer to bring to bear extraneous pressure on Tender

Accepting Authority shall be sufficient reasons to disqualify the tenderer.

11.0. BAR OF JURISDICTION:

Save as otherwise provided in Tamil Nadu Transparency in Tender Act 1998 no order passed

or proceeding taken by any officer or authority under this Act shall be called in question in

any Court, and no injunction shall be granted by any court in respect of any action taken or

to be taken by such officer or authority in pursuance of any power conferred by or under the

above Act.

12.0. APPEAL:

Any tenderer aggrieved by the order passed by the Tender accepting Authority under

Section-10 of the Tamil Nadu Transparency in Tenders Act 1998 may appeal to the

Government within 10 (Ten) days from the date of receipt of order.

13.0. Permanent Account Number (PAN):

The tenderers are requested to furnish the Permanent Account Number in their offer.

14.0. Taxpayer identification number (TIN) :

The tenderers shall furnish the Taxpayer identification number in their offer.

15.0. Pre bid meeting :

The pre bid meeting will be held at the O/o the Superintending Engineer/Design/Protection &

Communication ,IInd floor MLDC Block, 144 Annasalai, Chennai-2.

&&&&&&&


18

SECTION: V

COMMERCIAL

1.0. A) PRICE:

1.1. The Tenderers are requested to quote FIRM Price in Indian rupees only. 1.2. The prices quoted should be in Indian rupees only per unit all inclusive price including

Excise Duty, CST/TNVAT, Packing and Forwarding, Freight and Insurance for Delivery to

TANTRANSCO Stores/site anywhere in Tamil Nadu. A format for price is given in

Schedule `A’. 1.3. It is the responsibility of the tenderer to make sure about the correct rates of duty/tax

leviable on the materials at the time of tendering. If the rates assumed by the Tenderers

are less than the current rates prevailing at the time of tendering, the TANTRANSCO will not

be responsible for the mistake. 1.4. The tenderer should quote their rates taking into account the Excise Duty relief available

to them on account of duty paid for procurement of raw materials under CENVAT Scheme. 1.5. Also a certificate to the effect that the tenderers have taken into account CENVAT Credit

while quoting prices shall be given.

B) CONTRACT PERIOD:

The period of contract shall be one year from the date of receipt of acceptance of letter of

award of contract.

2.0. A) SALES TAX/VAT:

2.1. The Central Sales Tax/TNVAT will be paid extra as applicable. The amount of Central

Sales Tax/TNVAT and percentage payable shall be indicated separately in the tender offer.

Central Sales Tax/TNVAT is not applicable to Freight and Insurance charges. 2.2. The TANTRANSCO Ltd has been registered as a dealer, under Central Sales Tax Act

1956 (Registration No.956816) & under TNVAT Act 2006 TIN No. 33940641472.

As per G.O.MS No. 77 dated 11.07.2011 Notification – III No. II(1)/CTR/12(R-17)/ 2011,

the concessional rate of VAT @ 5% is applicable for the goods supplied to TNEB Ltd.,

TANGEDCO and TANTRANSCO, used in Generation, Transmission and Distribution of

Electrical Energy except petrol, cement & Diesel. Further, as per G.O.MS No.77,

dt.01.07.2011 Notification-IV No. II(1)/CT/12(R-18)/2011, the concessional rate of VAT @

5% is applicable for the sale of goods for use in the execution of turnkey projects by

contractors who have entered into agreement with TNEB Ltd., TANGEDCO and

TANTRANSCO, subject to the condition that the dealer / purchaser obtains and furnishes a

certificate in the prescribed form.

The necessary certificate as per G.O shall be furnished for availing concessional rate of VAT.

The C form for the classes of goods specified for the purpose as per CST Act shall be

furnished for availing concession / Nil rate of CST. 2.3. In case of delayed delivery, the Central Sales Tax/TNVAT prevailing on the date of

despatch or on the last day of the contractual delivery period whichever is LESS will be

admitted. For both the cases the supplier shall furnish documentary evidence while

submitting the bills for payment.


19

2.4. Provided always, it is hereby agreed and declared that in case, where the TANTRANSCO

has doubt and belief that Central Sales Tax/TNVAT is not at all payable for the transaction in

question, the TANTRANSCO reserves the right to withhold the amount of tax until the party

produces an order of court of competent jurisdiction, declaring the liability of the transaction

to Central Sales Tax/TNVAT. Concessional rate of Central Sales Tax/TNVAT, if any, shall be

taken into account and included in the price quoted giving proof thereof. 2.5. The following certificates have to be furnished for admittance of claim of Central Sales

Tax/TNVAT.

(i) Certified that the transaction in which the Central Sales Tax/TNVAT has been claimed and

has been/will be included in the return submitted/to be submitted to the Central Sales

Tax/TNVAT authorities for assessment of the Central Sales Tax/TNVAT and the amount of

Central Sales Tax/TNVAT claimed from the purchaser has been/will be paid to sales tax

authorities. (ii) Certified that the goods on which the Central Sales Tax/TNVAT has been charged have

not been exempted under C.S.T. Act or TNVAT and the rules made there under and the

charges on account of Central Sales Tax/TNVAT on these goods are correct, under provisions

of relevant Act or Rules made there under. (iii) Certified that we shall indemnify the TANTRANSCO, in case if it is found at a later date

that wrong / incorrect or excess payment has been recouped on account of Central Sales

Tax/TNVAT paid by us. (iv) Certified that we are registered as dealer under the Central Sales Tax Act and our

Registration No. is ………………………………………….and under TNVAT Act 2006 and our

Registration No is………………………………………….. (v) Certified that TNVAT credit availed by me has been taken into account in the rates

quoted.

Consequent to introduction of VAT, the additional Taxes such as Turnover Tax or Resale Tax, Surcharge and additional surcharge have been abolished. In the VAT Act 2006, there is no provision for availing concessional rate of 3% against Form

XVII. However the goods covered under above category can be procured at concessional

rate of VAT @ 5% against issue of certificate.

In regard to Central Sales Tax involving Interstate sale appropriate rate of CST against “C”

form shall be applicable.

2.0. B) SERVICE TAX: Applicable service tax along with educational cess will be reimbursed on production of documentary evidence for having paid the same and certificate copy of having registered at service tax cell. 3.0. A) EXCISE DUTY :

3.1. It is the responsibility of the tenderer to make sure about the correct rates of duty

leviable on the material at the time of tendering. If the rates assumed by the Tenderer are

less than the current rates prevailing at the time of tendering, the TANTRANSCO will not be

responsible for the mistake.


20

3.2. Any increase in Excise Duty consequent to the suppliers coming into different duty slab

during the execution of the contract shall have to be taken into account and the all inclusive

Firm Price shall be quoted accordingly by the tenderers. Any variation in Excise Duty due to

statutory variation within the contract delivery date shall be considered. 3.3. Authentic invoice containing the details of Central Excise Registration No. PLA No. Debit

entry in PLA/RG 23 duly authenticated by items manufactured by the tenderer.

3.4. In case of delayed delivery, Excise Duty prevailing on the date of despatch or the

Excise Duty applicable on the last date of contractual delivery period whichever is less will be

admitted. 3.5. Excise Invoice containing PLA No. debit entry in RG 23, etc. shall be furnished as proof

for having paid Excise Duty. 3.6. The tenderer who quotes ED as NIL and in the event of placement of order against this specification where the value of the order is above Rs.150 Lakhs, such tenderer shall furnish an Undertaking to the effect that the ED commitment on the account of crossing the turnover slab will be discharged to the ED authorities and that the TANTRANSCO shall not be responsible for any ED evasion by the tenderer in respect of the subject tender transaction.

B) Customs duty and Taxes:

3.7. The purchaser will decide and desire the list of accessories, tools and spares which are not manufactured in India and which will have imported as complete units and supplied by domestic bidders customs duties and other import taxes on such items will be included in the bid price by the domestic bidders and the same will be paid/reimbursed at actual by the purchaser. The custom duties and other import levies for these items will also be taken in to account for bid evaluation. When concessional customs duties is availed , the payment will be restricted to the actual on receipt of bill of entry in original. The customs duty shall be paid by the supplier. 3.8. Indian customs Act 1962 permits import of erection equipment required by a foreign vendor/contractor to perform his works in India under the ‘contract’. Such imports are exempted from payment of import duty subject to the vender/contractor giving a declaration to the Indian customs authorities to the effect that such imported equipment shall be re-exported out of India as soon as ‘Works’ are completed. The vender/contractor shall have to declare the time for which machinery shall be in India. Further clarification on this matter can be had from the office of the Director general of foreign trade, Minister of commerce, Government of India, udyog bhavan, Maulana azad road, New Delhi-110001. 3.9. The benefit of the same concessional customs duties, if any, availed by the tenderer, shall be passed on to the Board. 4.0 INSURANCE:

Contracting firms shall arrange insurance for the equipment and all its accessories being

supplied by them, through any of the Nationalised Insurance Companies. The equipment

shall be insured to cover transport (from Warehouse) and 60 days storage risk at store/site.

The damages, if any, during transit will be reported within 30 days of receipt of materials. It

will be the responsibility of the supplier to replace the defective/damaged materials and

make good the shortages and other losses in transit, free of cost, lodge and recover claim

from Insurance, Under-writers/Carriers.


21

5.0. PACKING AND FORWARDING :

The equipment and all its accessories shall be securely packed and despatched, freight paid,

duly insured, at supplier’s risk and cost. The packing may be in accordance with the

manufacturer’s standard practice. The supplier is responsible for ascertaining the facilities

that exist for Road Transport to site. Each package shall be clearly marked and contain

detailed packing list, such as gross weight, net weight etc. The supplier is solely responsible

for any loss or damage during transport. The despatch of materials shall be made only after

the approval of test certificates by the TANTRANSCO. The equipment/Materials shall be

unloaded at Destination Stores/Sites by the supplier free of cost.

6.0. PAYMENT:

6.1. Payments will not be made for equipments/materials damaged during transit. All

defective materials shall be replaced by the supplier free of charge. The payments shall be

made in the currency of Indian rupees only. All the money transactions will be in Indian

rupees only. 6.2. Payments for the supplies will be made by Cheque on any one of the Nationalized

Banks/Scheduled Banks approved by Reserve Bank of India, in Tamil Nadu. The bank

charges involved in making the payment will be to the account of the Tenderer. 6.3. Submission of bills with required documents is necessary for all payments. 6.4. Payment terms : I) For materials /works delivered within the delivery period:

75% of the all inclusive price of the equipments/materials will be paid within a reasonable

time after receipt of materials in good condition at stores/site.

Balance 20% of material price and 95% of works (i.e installation, testing and commissioning

of SAS) price will be paid within a reasonable time after completion of commissioning /

Integration of Sub-station automation system.

Balance 5% of material price as well as the 5% of the works price will be paid within a

reasonable time after completion of commissioning works in all respects. II) For materials / works delivered beyond the delivery period:

75% of the all inclusive price of the equipments/materials after deducting the appropriate

amount of Liquidated damages of each consignment will be paid within a reasonable time

after receipt of materials in good condition at stores/site.

Balance 20% of material cost and 95% of works (i.e installation, testing and commissioning

of SAS) price will be paid within a reasonable time on completion of commissioning of Sub-

station automation system with deduction of the Liquidated damages as applicable for works

item and the balance 5% will be paid after closure of P.O.. 6.4.3. For the delayed payments, if any, TANTRANSCO will not pay any interest on any

account. 6.5. In case of delay in supply, the materials will be accepted subject to the following

conditions.

(a) There should be no declining trend in prices.

(b) Payment will be released as per the recent purchase order rate or lowest rate obtained

during the recent tenders opened subject to levy of liquidated damage for belated supplies.


22

(c) TANTRANSCO reserves the right to accept or reject the delayed Supplies without

assigning any reason therefore and take action as per the other terms and conditions of

this specification. 6.6. The bills for payment will be passed only after the approval/ acceptance of the

following:

a) Approval of the Security Deposit cum Performance Bank Guarantee for 5% value of the

contract.

b) Acceptance of Test Certificate/reports.

c) Approval of the involved Drawings, supply of all the relevant Operation and maintenance

manuals etc.

d) Approval of Undertaking towards jurisdiction for Legal Proceedings.

e) Approval of the Guarantee certificates. 6.7. The supplier should despatch materials only after getting despatch instruction from

TANTRANSCO. If the supplier despatches the materials without the prior approval of the

TANTRANSCO, then the TANTRANSCO shall not be responsible for any demurrage or

wharfage or both and only the supplier should bear any expenditure arising out of such

unapproved despatches. 6.8. The purchase order will be closed on completion of supply and works in all respects.

6.9. In case quantity of materials delivered is more than that of the quantity stipulated in the delivery schedule of the delivery clause, then payments will be made only as per the payment milestone relevant to the original delivery schedule stipulated in the delivery clause. 7.0. Security Deposit cum Performance Bank Guarantee:

7.1. The successful tenderer will have to furnish Banker’s Cheque/DD/Irrevocable Bank Guarantee for 5% value of total contract valid for valid till the completion of the Guarantee period. 7.2. The successful tenderer will have to furnish the Security Deposit cum Performance Bank

Guarantee as per clause 7.1 within 15 days from the date of receipt of P.O. The Security

Deposit cum Performance Bank Guarantee will not carry any interest. The TANTRANSCO also

reserves the right to accept the belated payment of Security Deposit by levying penal

interest at the rate of 22% from the date of expiry of 15 days time limit till the date of

actual receipt of payment of Security Deposit cum Performance Bank Guarantee. The same

will be recovered from suppliers first bill. 7.3. The combined security deposit cum Performance Bank Guarantee will be released on

expiry of guarantee period after ensuring that defects/damages during the guarantee periods

are rectified/replaced. If the TANTRANSCO incurs any loss or damage on account of breach

of any of the clauses or any other amount arising out of the contract becomes payable by

the supplier to the TANTRANSCO, then the TANTRANSCO will in addition to such other dues

that he shall have under the law, appropriate the whole or part of the Security Deposit cum

Performance Bank Guarantee and such amount that is appropriated will not be refunded to

the supplier.


23

7.4. Failure to comply with the terms regarding Security Deposit cum Performance Bank

Guarantee set out in the purchase order within the stipulated time by the successful

tenderer will entail cancellation of the purchase order without any further reference to the

supplier.

8.0 DELIVERY:

8.01. Delivery of materials to be ordered shall be completed within three months from the date of receipt of indent from TANTRANSCO. The tenderer should agree for the delivery of materials anywhere in Tamilnadu state to be stipulated based on the schedule furnished by TANTRANSCO at the time of issue of indent. 8.02 The delivery period for works items is one month from the date of receipt of indent from TANTRANSCO. 8.03 The delivery so specified should be guaranteed by the tenderer under liquidated damages clause. Any other delivery period offered in the tender is liable for rejection. Detailed Schedule of Materials and Delivery Schedule required against this Tender is furnished in Schedule-B. 8.04. TANTRANSCO reserves the right to cancel the quantities not supplied as per delivery

schedule.

8.05. TANTRANSCO also reserves the right to cancel the order if the delivery schedule is not

kept up. 8.06. To ensure sustained supply without any interruption, TANTRANSCO reserves the right

to place orders among more than one tenderer. 8.07. TANTRANSCO will be at liberty to cancel the purchase order if the supply and /or

works are not made as per the delivery schedule specified in the indent, not

withstanding its right to claim liquidated damages for the belated supplies, works and the

quantity outstanding to be supplied as on the date of cancellation. The defaulting

contractors will be liable to pay to the TANTRANSCO in addition to the liquidated damages

for delay, the actual difference in price whenever TANTRANSCO orders the delayed quantity

to be supplied / executed by other agencies at higher rate.

9.0. LOSS OR DAMAGE :

9.1. External damages and/or shortages that are prima facie, the results of rough handling

in transit or due to defective packing will be intimated within one month from the date of

receipt of the materials at site. Internal defects, damages or shortages of integral parts

which cannot ordinarily be detected on a superficial visual examination, though due to bad

handling in transit or defective packing, would be intimated within 2 months from the date of

receipt of materials. In either case, the defective materials shall be replaced/ rectified by the

supplier, free of cost as per Clause 13-1. 9.2. If during the period of supply, it is found that goods already supplied are defective in

material or workmanship or do not conform to specification or are unsuitable for the

purpose for which they are purchased, then it will be open to the TANTRANSCO either to

reject the goods or repudiate the entire contract and claim such loss that the TANTRANSCO

may suffer on that account or require the supplier to replace the defective goods, free of

cost.


24

9.3. Similarly, if during the guarantee period any of the goods found to be defective in

materials or workmanship or do not conform to specification, it will be open to the

TANTRANSCO either to repudiate the entire contract and claim damages or accept such

parts of the goods that are satisfactory and require the supplier to replace the balance or to

claim compensation for the entire loss sustained by the TANTRANSCO on that account. 9.4. In the event of supplies being received damaged or any shortages at the destination

stations, the cost of such materials, Excise duty and Central Sales Tax/TNVAT (if payable)

and other charges payable thereof will be paid only proportionate to the value of materials

received in good condition, unless the damaged goods or short supplies are made good free

of cost by the suppliers. 9.5. For all legal purposes, the materials shall be deemed to pass into the TANTRANSCO’s

ownership at the destination Stores, where they are to be delivered and accepted.

10.0 LIQUIDATED DAMAGES AND PENALTY : 10.1. The delivery as specified should be guaranteed by the supplier under the liquidated

damages clause given below:

(a) If the supplier fails to deliver the equipments/materials within the time specified in the

contract or any extension thereof, the TANTRANSCO shall recover from the supplier as

liquidated damages, a sum of HALF PERCENT (0.5%) of the contract price of the undelivered

equipments / materials for each completed week of delay. The total liquidated damages shall

not exceed TEN PERCENT (10%) of the contract price of the equipments/materials so

delayed. Only the date of actual receipt of complete materials in good condition at stores/site

will be reckoned as date of delivery for this purpose. (b) If the contractor fails to complete the works within the time specified in the contract or any extension thereof, the TANTRANSCO shall recover from the contractor as liquidated damages, a sum of HALF PERCENT (0.5%) of the contract value of both supply and works pertaining to the equipments commissioned with delay, for the each completed week of delay. The total liquidated damages shall not exceed TEN PERCENT (10%) of the total contract value of both supply and works of the unit delayed. The defaulting contractor will be made liable to pay to the TANTRANSCO, in addition to liquidated damages for delay, the actual difference in price, wherever TANTRANSCO orders the delayed quantity to be supplied/executed by other agencies at a higher rate. This is without prejudice to other rights under the terms of contract. 10.2. Equipment will be deemed to have been delivered only when all its component parts

and its accessories are also delivered. If certain components and accessories are not

delivered in time the whole equipment will be considered as delayed unless, the missing

parts are delivered. The Liquidated damages will also be levied for the quantity not supplied

as is done for the delayed supplies. If supplies effected in part which could not be

beneficially used by the TANTRANSCO (due to such incomplete supply), liquidated damage

will be worked out on the basis of entire contract price of respective substation only and not

on the value of delayed portion. 10.3. If supplies to be rendered are made by the supplier beyond the period of delivery and

they are accepted by the TANTRANSCO, such acceptance is without prejudice to

TANTRANSCO’s right to levy liquidated damages for the delay in supply.


25

10.4. If the ordered materials are not delivered, the TANTRANSCO shall recover from the

supplier, as liquidated damages a sum equal to TEN PERCENT (10%) of the contract price of

the equipments/materials undelivered besides forfeiture of security deposit cum performance

guarantee. Similarly for ordered works that are not executed, the liquidated damages

amounting 10% of the contract price of the works not executed shall be recovered from the

supplier besides forfeiture of security deposit cum performance guarantee. 10.5. The suppliers are liable to pay the amount of loss sustained by the TANTRANSCO in

the event of non-execution of orders, if any placed on them either in full or part, to the

satisfaction of the TANTRANSCO under the terms and conditions of contract and in the event

of placing orders for such quantities on some others at a higher price. 10.6. Tenderers not giving clear and specific acceptance to the above clauses are liable for

rejection. 10.7. If there is any downward trend in prices on account of belated supplies/Works, the

tenderers have to accept the same with the levy of liquidated damages, for belated

supplies/Works.

11.0. FORCE MAJEURE:

11.1. If at any time, during the continuance of the contract, the performance in whole or in

part, in any obligation under this contract, shall be prevented or delayed by reasons of any

war, hostility, acts of public enmity, acts of civil commotion, strikes, lockouts, sabotages,

fires, floods, explosions, epidemics, quarantine restrictions or other acts of God (herein after

referred to as eventualities) then, provided notice of the happening of any such eventuality

is given by the tenderer to the TANTRANSCO within 15 days from the date of occurrence

thereof, neither party shall, by reasons of such eventuality, be entitled to terminate this

contract nor shall have any claim for damages against the other in respect of such non-

performance or delay in performance and deliveries under this contract, shall be resumed as

soon as practicable after such eventuality has come to an end or ceased to exist. 11.2. Provided that if the performance in whole or part by the supplier on any obligation

under this contract is prevented or delayed by reasons of any eventuality for a period

exceeding 60 days, the TANTRANSCO may at its option terminate the contract by a notice in

writing.

12. GUARANTEE:

12.1. The entire equipments pertaining to respective substation should be guaranteed for

satisfactory operation and good workmanship at least for a period of 24 (Twenty four)

months from the date of commissioning of the complete SAS with all the C&R panels.

Successful tenderer shall furnish an undertaking for the above. 12.2. Any defects noticed during this period shall be rectified free of cost to the

TANTRANSCO within 2 (Two) months from the intimation of defect/failure. Irrespective of

number of failures and repairs, the suppliers are responsible for free replacement of the

defective materials till the same serves a continuous period of 12 (Twelve) months from the

date of commissioning after the last repairs or 24 months from the date of receipt of last


26

consignment of materials, whichever is LATER. If they are not rectified or replaced within

this period the contractor shall pay Liquidated Damages as per Liquidated Damages clause in

the contract for the delay from the date of receipt of intimation for the defects or failures. 12.3. The incidental expenses, transport and freight charges for the replacement of defective

materials within the guarantee period may also be borne by the supplier till such time it

serves a continuous period of 12 (Twelve) months as said above. 12.4. The tenderers shall guarantee among other things, the following.

(i) Quality and strength of materials used.

(ii) Safe electrical and mechanical stresses on all parts of the equipments under all

specified conditions.

(iii) Performance figures given by the tenderers in the Schedule of Guaranteed technical

particulars.

13.0. REPLACEMENT OF DEFECTIVE/DAMAGED MATERIALS: 13.1. Notwithstanding anything contained in the above liquidated damages clause when the

whole or part of the materials supplied by the supplier are found to be defective/damaged or

are not in conformity with the specification or sample, such defects or damages in the

materials supplied shall be rectified within two months from the date of intimation of

defect/damage either at the point of destination or at the supplier’s works, at the cost of

supplier, against proper security and acknowledgement. In the alternative, the defective or

damaged materials shall be replaced free of cost within two months from the date of receipt

of the intimation from the TANTRANSCO of such defects or damages. If the defects or

damages are not rectified or replaced within this period, the supplier shall pay a sum

towards liquidated damages as per liquidated damages clause given above, for the delay in

rectification/replacement of the defects or damages. 13.2. If even after such rectification or replacement of the damaged or defective part, if the

equipment ordered is not giving the satisfactory performance as per the contract, then it will

be open to the TANTRANSCO either to reject the goods and recover the entire cost of such

goods and claim such loss sustained by the TANTRANSCO, from the supplier/contractor.

14.0. FAILURE TO EXECUTE THE CONTRACT:

Suppliers failing to execute the order placed on them to the satisfaction of the TANTRANSCO

under terms and conditions set forth therein, will be liable to make good the loss sustained

by the TANTRANSCO, consequent to the placing of fresh orders elsewhere at higher rate, i.e.

the difference between the price accepted in the contract already entered into and the price

at which fresh orders have been placed. This is without prejudice to the imposition of

Liquidated Damages and forfeiture of security deposit.

15.0. NON-ASSIGNMENT:

The supplier shall not assign or transfer the contract or any part thereof without the prior

approval of the TANTRANSCO.


27

16.0. EFFECTING RECOVERIES: Any loss arising due to non-fulfilment of this contract or any other contract, will be recovered from the SD CUM PBG and or any other amount due to the supplier from TANTRANSCO and TANGEDCO from the contract as well as from other contracts.

17.0. INCOME TAX PAN No.

The tenderer shall furnish their Income Tax (PAN) permanent assessment number with

documentary evidence.

18.0. PATENT RIGHTS ETC:

The supplier shall indemnify the TANTRANSCO against all claims, actions, suits and

proceedings for the infringement or alleged infringement of any patent, design or copy right

protected either in the country of origin or in India by the use of any equipment supplied by

the supplier other than for the purpose indicated by or reasonably to be inferred from the

specification.

19.0. JURISDICTION FOR LEGAL PROCEEDINGS :

No suit or any proceedings in regard to any matter arising in any respect under this contract

shall be instituted in any court, save in the appropriate civil court of Chennai or the Court of

Small Causes at Chennai. It is agreed that no other court shall have jurisdiction to entertain

any suit or proceedings, even though, part of the cause of action might arise within their

jurisdiction. In case, any part of cause of action might arise within the jurisdiction of any of

the courts in Tamil Nadu and rest within the jurisdiction of courts outside Tamil Nadu, then it

is agreed to between parties that such suits or proceedings shall be instituted in court within

Tamil Nadu and no other court outside Tamil Nadu shall have jurisdiction, even though any

part of the cause of action might arise within the jurisdiction of such courts. An

UNDERTAKING in this regard should be furnished on receipt of Purchase Order in a non

judicial stamp paper value of Rs. 80/- agreeing to be above conditions.

20.0. ARBITRATION:

The TANTRANSCO will not accept any arbitration in case of disputes arising in any respect

under this contract. Any dispute arising out of this contract shall not be subject to arbitration

under the provisions of Arbitration and Conciliation Act 1996 in the event of any dispute

between the parties.

21.0. DEVIATIONS FROM SPECIFICATION:

If the tenderer wish to deviate from any of the clause of this specification, he shall list out

such deviations, in the format enclosed and submit full particulars and reasons therefor.

Unless this is done, the equipment offered shall be considered to comply, in every respect

with the terms and conditions of this specification.

22.0. TEST CERTIFICATES:

The test certificates in triplicate for the materials furnishing the results of the tests as per

latest issue of the standards stipulated in this tender document shall be forwarded and got

approved before the materials are dispatched. In addition to the tests called for in the

specification, the TANTRANSCO reserves the right of having such tests as he desires carried


28

out at his own expenses to satisfy himself that the materials conform to the requirement of

this specification. The materials may be rejected if the test results are not satisfactory. The

type test certificates (Photostat copies) as per latest standards stipulated in this tender

document shall be furnished with the tender as indicated elsewhere in Section-VI Technical.

23.0. RESPONSIBILITY:

The tenderer is responsible for safe delivery of the materials at the destination stores. The

tenderer should include and provide for packing and secured protection of the materials so

as to avoid damages or loss in transit.

24.0. MAXIMUM WEIGHTS AND DIMENSIONS OF PACKINGS:

The supplier is responsible to make sure about the facilities that exist for Road and Rail

transport to site, the maximum packages which can be conveyed by the railways and crane

lift available at the destination railway station. The supplier is also responsible for any loss

or damage during transport and storage for 60 days. Each case or package should be clearly

marked and should contain detailed packing list.

25.0. INSPECTION:

25.1 The authorized representatives of the TANTRANSCO shall have access to the supplier’s

works at any time during working hours, for the purpose of inspecting the manufacture of

the materials and for testing the selected samples from the materials covered by this

specification. The supplier shall provide facilities for the above. 25.2. Tenderers are requested to furnish in their tenders the exact location of their factory

with detailed address to enable inspection by TANTRANSCO if considered necessary. 25.3. Not less than 15 days advance intimation shall be given about the quantity of materials

that will be ready for inspection by the TANTRANSCO’s officers. The arrangement for

inspection shall be made by supplier in such a way that the delivery schedule is kept up.

The materials shall not be despatched without instruction from TANTRANSCO. 25.4. All expenses including boarding, lodging, travel expenses, medical insurance of

TANTRANSCO inspector(s) during travel and inspection period, VISA expenses etc to perform

each of the factory inspection of the materials by TANTRANSCO inspector(s) shall be borne

by the supplier. In this context charges of any kind shall not be levied to TANTRANSCO.

26.0 COMPLETENESS OF TENDER: The tender should be complete with all details of illustrative and descriptive literature and

drawings. The tenderer shall furnish the complete technical details of the equipment.

Information regarding the country of manufacture or origin of materials used in the

manufacture of the articles should be furnished. The tender should include all minor

accessories even though not specifically mentioned in this specification but which are

essential for the completeness of the materials ordered. The tenderer shall not be eligible

for any extra charges in respect of such minor accessories though not included in the tender.


29

27.0. INTERCHANGEABILITY:

All similar parts and removable parts of similar items shall be interchangeable with each other. 28.0. MATERIALS AND WORKMANSHIP: All materials, equipments and spare parts thereof shall be new, unused and originally coming from manufacturer’s plant to the destination stores. Those including used, rebuilt or overhauled materials/ equipments will not be accepted. 29.1. All the materials shall be of best class and capable of satisfactory operation in the

tropics with humid atmospheric condition. Unless otherwise specified, they shall confirm to

the requirements of appropriate Indian standards. Where these are not available, IEC and

American/British standards shall be followed. 29.2. The design shall incorporate every reasonable precautions and provisions and

provisions for the safety of all those concerned in the operation and maintenance of

equipment.

30.0. RECOVERIES OF DUES:

The TANTRANSCO is empowered:

a) To recover any dues against this contract in any bills/Security Deposit/Earnest Money

Deposit due to the supplier either in this contract or any other contracts with TANTRANSCO.

b) To recover any dues against any other contract of the supplier with TANTRANSCO, with

the available amount due to the supplier against this contract.

31.0. RAW MATERIALS:

It is the responsibility of the tenderer to make his own arrangement to procure the necessary raw materials required for the manufacture.

32.0 BACKUP ASSURANCE FOR OPTIONAL PRICE ITEM

The bidder shall agree to provide service support with reasonable price for system

integration of control and protection panels of any make with the SAS offered by the bidder

in case a contract is placed for the SAS items tendered in this tender. An undertaking in this

regard in non-judicial stamp paper will be required to be furnished on demand from

TANTRANSCO. In this context the bidder shall furnish the optional prices in schedule-A for

which the validity of ex-works price shall be given till 2 years from the date of commissioning

of the SAS for the respective substation in this tender. In this context no other charges of

any kind apart from taxes and duties shall be levied to TANTRANSCO. ****


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SECTIO N – VI A TECHNICAL- GENERAL

1.0 TEST CERTIFICATE : 1.1. Test Certificates/reports in triplicate for the materials furnishing the results of the routine tests conforming to the latest issue of the standards as specified in this tender documents shall be forwarded and got approved before the materials are despatched. 2.0. ROYALTIES AND PATENTS : 2.1. All Royalties for patents or the charges for the use or infringements thereof that may be involved in the contract shall be included in the tender prices. The tenderer shall protect the TANTRANSCO against any claim thereof. 3.0. GUARANTEED PARTICULARS: 3.1. The tenderer shall furnish all the particulars of the materials offered against this specification. Unless full details are furnished, the tender may not be considered. 4.0. DEPARTURE FROM SPECIFICATION: 4.1. Should the tenderer wish to depart from the provisions of this specification, he shall list such departures separately and submit full particulars and reasons for the departure in the form enclosed to part II of this specification. Unless this is done, the materials offered shall be considered to comply in every respect with the terms and conditions of this specification. 5.0. RESPONSIBILITY: 5.1. The tenderer is responsible for safe delivery of the materials at the destination stores/sites. The tenderer should also include and provide for security, protecting and packing the materials so as to avoid damages or loss in transit. 5.2. The Contractor shall have total responsibility for all equipment and materials in its custody, stored, loose, semi-assembled and/or erected by it at Site. The Contractor shall make suitable security arrangements to ensure the protection of all materials, equipment and works from theft, fire, pilferage and any other damages and loss. 6.0. PACKING : The packing may be in accordance with the manufacturer's standard practice. The contractor should however ensure that the packing is such that the materials reach their destination without damages after transport by Rail or Road. 7.0. MAXIMUM WEIGHTS AND DIMENSIONS OF PACKINGS: 7.1. The contractor is responsible for informing himself of the facilities that exist for road and rail transport to site, the maximum packages which can be conveyed by the Railway and crane lift available at the destination railway station. The contractor is also responsible for any loss or damage during transport. 7.2. Each case or package should be clearly marked and should contain detailed packing list.


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8.0. INSPECTION : 8.1. The accredited representatives of the TANTRANSCO shall have access to the contractor's works at any time during working hours, for the purpose of inspecting the manufacture of the materials and for testing the selected samples from the materials covered by this specification. The contractor or the sub-contractor shall provide facilities for testing such samples as per standards agreed between the supplier and the TANTRANSCO. 8.2. The tenderer shall specify the international standards which are applicable for the equipments to be quoted under this specification. 8.3. The TANTRANSCO reserves the right to conduct any other reasonable tests at manufacturer's premises or at site. The TANTRANSCO shall be supplied with 2 copies of test result. A separate copy of type and routine tests to be carried out on the equipments shall be enclosed with the Tender. 8.4. Tenderers are requested to furnish in their tenders the exact location of their factory with address to enable inspection by TANTRANSCO if considered necessary. 8.5. It should be the supplier's responsibility to arrange for inspection, despatch etc., in time to keep up the delivery schedule. A reasonable time of at least 15-days shall be given to the TANTRANSCO for arranging inspection. 9.0. QUALITY PLAN : 9.1. You will prepare, submit and discuss with the TANTRANSCO and based on such discussions finalize within 30 days (thirty days) from the date of the letter of intent, detailed quality plans in the format as given in Schedules for all components of the equipments manufactured by you, setting out during the various stages of manufacture the quality practices and procedures to be followed by your quality control organization, the relevant reference documents / standards / acceptance level, inspection documentation raised etc. In these quality plans, we will identify "Hold Points" beyond which work will not progress without our consent in writing. For the components/equipments procured by you for the purpose of this contract, your purchase specifications and enquiries shall call for such quality plan of the successful vendor which shall be discussed and finalized by you, in association with us, in the aforesaid manner and the same shall form part of your purchase order on your sub vendor. We also reserve our right to carryout quality audit and quality surveillance of the system and procedures of your/your vendor's quality management and control activities. However, such audit/surveillance by us shall not relieve you of any of your responsibilities under the terms of contract. 10.0. COMPLETENESS OF TENDER : 10.1. The tender should be complete with all details of illustrative & descriptive literature and drawings. The tenderers shall furnish the complete technical details of the equipments. Information regarding the country of manufacture or origin of materials used in the manufacture of the articles should be furnished. The tenderer should include all minor accessories even though not specifically mentioned in this specification but which are essential for the completeness of the materials ordered and which are required for efficient operation of the equipment ordered. The tenderer shall not be eligible for any extra charges in respect of such minor accessories, though not included in the tender. 11.0. INTERCHANGEABILITY: All similar parts and removable parts of similar items shall be interchangeable with each other.


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12.0. QUANTITIES: The quantities mentioned in this specification are only approximate. The TANTRANSCO reserves the right to revise the quantities at the time of placing the order to an extent of +/- 25%. 13.0 DESPATCH OF MATERIALS : Despatch of items should be done only after approval of test certificates/reports. The destination and the name of the officers to whom advance intimation regarding despatch to be sent will be intimated by the consignees in the despatch instructions. 14.0. CLIMATIC CONDITIONS: The materials are for use in Tamil Nadu and should be satisfactory for operation under

tropical conditions in Tamil Nadu.

The climatic conditions at site under which all the equipment shall operate

satisfactorily, are:

a) The ambient temperature will be within the range of + 10°C to + 50°C.

b) The altitude above M.S.L will be less than 1000 meters.

c) The maximum atmospheric humidity will be in the range of 95%.

d) Average Number of thunderstorm days per annum is 65.

e) Average Number of dust storm days per annum is occasional

f) Average Number of rainy days per annum is 65.

g) Average annual rainfall is 130 cm.

h) The climatic conditions are prone to wide variation in ambient condition and equipments

offered under this specification shall be suitable for installation at any of the Sub-Stations in

Tamil Nadu.

i) All electrical devices shall be given tropical and fungicidal treatment. Fog, smoke and

mild acids are also present in the atmosphere.

15.0. ELECTRICITY RULES : All works shall be carried out in accordance with the latest provisions of the Indian Electricity Act and the rules there under unless modified by this specification. 16.0. EQUIPMENTS/MATERIALS AND WORKMANSHIP : 16.1. All the equipments shall be of the best class and capable of satisfactory operation in the tropics with humid atmospheric conditions without distortion or deterioration. Unless otherwise specified, they shall conform to the requirements of appropriate Indian Standards. Where these are not available, IEC and American/British Standards shall be followed. Where a specification covering the equipments in question has not been published, the tenderer should specify to what extent they would be in a position to accept the various provisions in the specification. 16.2. The workmanship shall be of the highest grade and the entire construction in accordance with the best modern practice. The whole of the work shall be of the highest class throughout well finished and of approved make. The entire design and construction shall be capable of withstanding the severest stresses likely to occur in actual service and of resisting rough handling during transport. 16.3. The equipments should be designed to facilitate inspection and repairs and to ensure satisfactory operation under atmospheric conditions prevailing at site and under sudden variations of load and voltage as may be met with under working conditions


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in the system including those due to faulty synchronizing and short circuits within the rating of the apparatus. 16.4. The design shall incorporate every reasonable precaution and provisions for the safety of all those concerned in the operation and maintenance. 16.5. All the equipments should operate without undue vibration and with the least practicable amount of noise. 17.0. PAST PERFORMANCE: 17.1. The intending tenderers shall furnish the documentary evidence with details of various Purchase Orders placed on them during the last three years as on the date of tendering in the proforma enclosed to the Tender Specification and also proof for having manufactured the tendered items and for their satisfactory performance from State Electricity Board / TANTRANSCO/Power Utilities. 17.2. The Bidders shall furnish documentary evidence for the constitution of the firm such as Memorandum and Articles of Association, Attested copy of Registered Partnership Deed with details of Name, Address, Telephone, and Electricity Service Connection No. of the manufacturing plants. 17.3. The details furnished by the tenderers shall be in complete shape and if it is found that any information is found omitted, suppressed, incomplete or incorrect, the same will be taken note of while dealing with the Tenderers in future.

18.0. TYPE TESTS :

Bidders are requested to furnish with their bid submittal a copy of type test certificates for the materials and equipments offered in full shape as conforming to the latest issue of the standards as specified in this tender documents, all the type test reports should be obtained from Government/Government recognized Lab/List of labs approved by TANTRANSCO Lab/ testing facilities recognized by Govt. of India or accredited by National Accreditation Board of testing and calibration Laboratories (NABL) or recognized by BIS or reputed/ accredited lab from foreign countries. The date of issue of type reports/certificates shall not be earlier than five years (5 years) as on the date of tender opening. The original type test certificates shall be furnished for verification on request. The details of type test should also be furnished in the Schedule-G. Bid submittals without necessary type test reports/certificates as required in the tender specification will be liable for rejection.

19.0. ADDITIONAL TESTS The TANTRANSCO reserves the right for carrying out any other tests of a reasonable nature at the works of the supplier/laboratory or at any other recognized laboratory/research institute in addition to the above mentioned type, acceptance and routine tests at the cost of the employer to satisfy that the material complies with the intent of this specification. 20.0. DRAWINGS & MANUALS: The scope of supply includes: i. Drawings for SAS and C&R panels towards design approval : 3 sets With all the technical literatures. ii. As-built drawings of all the panels & SAS : 5 sets + 1 soft copy. iii. Operation & maintenance Manuals for all equipments : 3 sets. One copy of the technical literatures, installation, operating, maintenance manuals in both hard copies and soft copies in CDs is included in the scope of supply for each of the relay and 3 copies in general. The


34

manual should contain exhaustive literature about each and every feature of the IED/Numeric relay/Meters/SAS devices etc along with literature on the THEORY OF OPERATION, ADOPTED ALGORITHM, tools for programming PLC/ Automation logic/Boolean logic etc. 21.0. TOOLS: One Set of necessary software in CDs for configuration and parameterization of the IEDs/Numeric relays/Digital Meters/SAS devices and SAS softwares etc, crimping tools for device termination (applicable for terminations requiring special crimping tools), cable for communicating with configuration port (as required) and suitable laptop computer are included in the scope of supply of SAS for each substation. 22.0 TRAINING : Refer scope of works vide clause –II of section-IV. Training at supplier’s works :

The training syllabus and facilities shall cover the following requirements. Lectures and hands on training on complete SAS & protection relays. All relevant training materials, tools and equipments shall be provided for each trainee towards this training. Training at supplier’s works shall include “Hands on” training on the following for which the actual devices shall be provided in the training : - On the tools for configuration, parameterization (for numeric relays), Automation logic, Boolean logic, PLC logic etc of all SAS devices such as Numeric relays, IEDs, BCUs, Servers , work stations and servers, Gateway, LAN devices etc. - On all softwares including On HMI editors, data base management softwares, NMS Software, etc. to maintain, trouble shoot the SAS system and for modifications in the SAS for future bay extensions/ modifications etc. Comprehensive hands on training at site should be imparted to TANTRANCO engineers. 23.0 INSTALLATION AND TESTING: i) Installation of SAS equipments is in the scope of the tenderer. All necessary tools and commissioning spares is in the tenderer’ scope. ii) The testing and commissioning of the Sub-station automation system will be by the tenderer. Customization/design engineering should be done only in the presence of TANTRANSCO Engineers. The complete system tests shall be performed on site together with the Site Acceptance Test (SAT). The Sub-station automation system shall work continuously for a period of 3 months from the date of taking over of Sub-station automation system by TANTRANSCO. The defect of minor nature shall be attended with in 24 hours and the defect of major nature shall be attended with in 3 days from the time of intimation during the SAT period. This shall be adhered to strictly failing which the cycle of SAT period will break. Once rectification of defects is done & intimation received from the tenderer, TANTRANSCO will give SAT period of three months starting from the beginning. The completion of work should be certified by TANTRANSCO. 24.0. BACK UP ASSURANCE:

i) The spares required towards maintenance of the equipments ordered shall be made

available for replacement for a minimum period of ten years from the date of last despatch

at a reasonable price.


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ii) Necessary technical support for commissioning of the C&R panels should be provided

with out additional charges to TANTRANSCO.

iii) The bidder shall agree to provide service support with reasonable price under optional

price in schedule-A for system integration of control and protection panels of any make with

the SAS offered by the bidder in case a contract is placed for the SAS items tendered in this

tender. This will not be considered for evaluation.

****


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SECTION – VI B TECHNICAL SPECIFICATION FOR CONTROL & RELAY PANELS

1.1General

This specification requires the design, manufacture, FAT, supply inclusive of insurance,

transport and delivery to site, testing and commissioning of SAS, 230 kV & 110 kV Control &

relay panels and other associated equipments. The equipments shall be capable of working

satisfactorily in the intended environmental conditions and suitable for satisfactory

performance for the application.

The manufacturer of control & relay panels and SAS equipments offered by the bidder is

subject to approval of TANTRANSCO.

2. Cabinet for Control & Relay Panel:

a) Construction:

Free standing simplex type, Metal enclosed with swing frame to house the devices and an

outer glass door. The gland and plate assembly shall be vermin proof. The panel shall be

designed for wiring access from front of the C&R panel

Cable entries to the panel shall be from the bottom. The design of the interior of the panel

shall allow sufficient access to the terminals of all devices for removal and repair. The design

shall ensure that the heat generated by various apparatus mounted in the panel shall not

affect the performance of any of the devices.

Dimension : Depth x width x height : 800 x 800 x 2312 (or more including base frame)

in mm

Degree of protection : IP-41 as per IEC 60529 / IS 12063

Tests : All type tests and routine tests prescribed in IS/IEC 60947 Low-voltage

Switchgear and Control gear standards shall be performed on the

complete panel assembly.

Thickness of metal : Minimum 3mm for planes housing the devices and for bottom

plates. Minimum 2mm for all other sides.

Swing frame :

Play of Swing frame : 120 degree or above capable of opening in the

opposite direction to glass door.

No of hinges : 3nos (minimum)

Door stopper : 1 No.

Protective Glass door : Splinter proof and transparent tempered glass of

minimum thickness 3mm.

Bottom plates : Knock slots shall be provided in the bottom plates

for facilitating cable entry at site.

b) Painting :

i) All sheet steel work shall be phosphated in accordance with IS-6005

ii) Oil, grease, dirt, swart, rust and scale shall be removed by adopting proper cleansing

procedure.

iii) After phosphating and thorough rinsing, the phosphate coating shall be sealed with

application of two coats of ready mixed stoved type zinc chromate primer. The first

coat shall be flash dried while the second coat shall be stoved.


37

iv) After application of primer, two coats of finishing synthetic enamel paint shall be

applied, each coat followed by stoving.

v) The colour of the panel shall match with the existing panel colour of subject

station and normally of following choice for new station.

Exterior - stoved enamel grey

Interior - stoved enamel white

Bus frame - stoved enamel black

Finish - glossy surface treatment shall be done as per BIS.

In case powder coating painting is adopted then the minimum thickness of paint shall be 70

micorns and subject to TANTRANSCO approval.

c) Accessories :

• A Door Stopper shall be provided with each door to hold it in the open position

at an angle/angles as specified for each type of panel.

• Door handle shall be provided with padlocking facility.

• Each cabinet is to be provided with removable type lifting eyes or lifting beams

installed on the top.

• Adequate ventilation openings in the form of louvres shall be provided. The

ventilation louvers shall be vermin proof and shall be provided with removable filters or

removable wire mesh to minimize ingress of dust.

• Labels to be provided at front and rear of the panel for each device.

Name plate to be provided on the top of each panel on front ,large and bold name plates

shall be provided for circuit/ feeder designation

• Name plate and labels shall be made of non rusting metal or 3 ply lamicoid.

Name plate shall be black with white engraving lettering.

Typical label size : Width: 1.5cm; length : as per the length of the inscription;

the letter size : 0.75cm.

• Panels shall have base frame with smooth bearing surface, anti vibration strips/

pad made of shock absorbing materials shall be placed between panels and base frame.

• All doors, removable covers shall be gasketted all around with neoprene

gaskets.

• Necessary cable gland should be fitted. Cable gland plates fitted on the bottom

shall be connected to the earthing of panel/station through a flexible braided copper

conductor rigidly.

• Each panel shall be provided with space heater rated for 230V single phase

A.C. supply with controlling thermostat.

• All equipments in the panel shall be mounted and completely wired to the

terminal blocks ready for external connection. The spare contacts shall also be

wired upto the terminal block.

• Each panel shall be provided with the interior fluorescent lights of sufficient

illumination capacity controlled by door limit switch.

• A 240V single phase, 3 pin A.C. socket 15/5A with switch – 1 No.

• Accessories required for fixing the panel such as foundation bolts and nuts

shall be provided along with a panel.

• DC voltage of the panels:- As per station DC supply voltage.


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d) Circuit distribution and isolation :

i) Each C&R panel shall be provided with necessary arrangements for receiving,

isolating and fusing of AC and DC supplies for various control of signaling, lighting

and space heaters.

ii) Each of the distribution circuits and incomer circuits of the AC auxiliary supply and DC

auxiliary supply shall be provide with MCBs such as to ensure selective clearance of

sub circuit faults.

iii) All MCBs should be of suitable rating with auxiliary contact for trip indication which

shall be wired to SAS for alarm alert.

iv) Potential circuit for metering and relaying shall be protected by fuses.

v) All fuses shall be of HRC cartridge type conforming to IS 13703 mounted on plug in

type fuse bases. All accessible live connection of fuse base shall be adequately

shrouded.

vi) Fuse shall have operation indications for indicating blown fuse condition.

vii) Fuse carrier shall have imprints of fuse rating and voltage.

viii) Removable links should be provided at the output of each relay for trip output and

reclose output. Adequate space shall be left between fuse units when arranged

adjacently. e. Panel wiring:

i) Wire type :

Single core multi strand copper conductor wires with PVC insulation of FRLS and

shall be flame, vermin, and rodent proof. 1100V grade for CT,PT circuits. 600V/1100V

Grade for other circuits.

ii) Flexible wires shall be used for wiring of devices on moving parts such as swinging

panels or panel door.

iii) Wire size :

4 Sq.mm for Auxiliary AC supply circuits.

2.5 Sq.mm for CT circuits, Earthing circuits and DC Auxiliary supply wiring.

1.5 sq.mm for PT Circuits and all other circuits.

Higher size wires for all of the above mentioned circuits is applicable if required as per engineering requirement.

iv) Panel wiring shall be securely supported, neatly arranged, readily accessible and

connected to equipment terminals and terminal blocks. Wiring gutters and troughs

shall be used for this purpose. All wiring shall be made without splices.

v) Cables/wires shall be uniformly bunched and tied by means of PVC belts and carried

in PVC carrying troughs. The position of the PVC carrying troughs and having bunch

of wires shall not give any hindrance for fixing or removing relay casing, switches etc.

vi) Wire termination shall be made with solder less crimping type and tinned copper

lugs, which firmly grip the conductor. Insulated sleeves shall be provided at the wire

terminations.

vii) Engraved core identification plastic ferrules marked to correspond with panel wiring

diagram shall be fitted at both ends of each wire.

viii) The wire number shown on the wiring shall be in accordance with IS 5578.

ix) All wires directly connected to trip circuit breaker or device shall be distinguished by

addition of red colour unlettered ferrule.


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x) Interconnection to adjacent panels shall be brought to a separate set of terminal

blocks located near to the slots or holes to be provided at the top of the panel.

Arrangements shall be made for easy connections to adjacent panels at site and

wires for this purpose shall be provided and bunched inside the panel.

xi) Bus wires shall run at the top the panels. The terminal blocks for the wires shall be

with isolating links.

xii) The terminal blocks used shall be minimum 600V (For other circuits) /1000V (for CT

& PT circuits) grade and have 10A continuous rating, moulded piece, complete with

insulated barriers, stud type terminals washers nuts and lock nuts suitable for

operation with a tubular box spanner or screw driver.

xiii) Terminal blocks shall be arranged in vertical formation at an inclined angle with

sufficient space between terminal blocks with minimum of 150mm for easy wiring.

xiv) Terminal blocks shall include a white fibre marking stripe with clear plastic, slip

on/clip on terminal covers. Marking on terminal strips shall correspond to wire

number and terminal number on the wiring diagrams.

xv) There shall be minimum clearance of 250mm between the first row of terminal blocks

and the associated cable and plate or panel side wall.

xvi) At least 20% of total terminal shall be provided as spare for further connections and

these spare terminals shall be uniformly distributed on all terminal blocks.

xvii) For CT and CVT termination, links terminal blocks to be used shall have links for

disconnection and plugging in facility for testing purposes.

xviii) Wiring is preferable with the following colour code.

PT supply : Red, yellow, blue for phase and black for neutral.

CT circuits : Red, yellow, blue for phase and black for neutral.

DC circuit : Grey for both positive and negative.

230V AC circuits : Black for both phase and neutral.

Earthing : Green.

xvii) Lugs : Solder less crimping type, Tinned copper lug. Ring type (Generally for

termination on devices). f. Earthing

i) All panels shall be equipped with bus securely fixed along the inside base of the

panels. When several panels are mounted adjoining to each other, the earth bus shall

be made continuous and necessary connectors and clamps for this purpose shall be

included in the scope of supply.

ii) The size of the earth bus shall be made of 25mmx6mm tinned copper flat.

iii) The earth of the substation will be 40mm diameter MS rods. Provision shall be made

on the earth bus bars of the end panels for connecting to the earth grid. Necessary

terminal clamps and connectors shall be included in the scope of supply.

iv) All metal case of the relays, instruments and other panel mounted devices shall be

connected to the earth bus by independent copper wires of size not less than 2.5

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

connected on the terminals with suitable clamp connectors and soldering shall not be

permitted.


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3.TRIVECTOR METER:

The tri-vector meter shall be AC static micro-processor based ABT type tri-vector energy

meters, DLMS (Category-B) compliant, suitable for availability based tariff application. The

meter should be capable to record and display Active, Reactive and apparent energy and

maximum demand for 3 phase 4 wire as well as 3 phase 3 wire AC balanced/ unbalanced

loads without effecting the accuracy for a power factor range of zero (lagging), unity and

zero (leading) for export and import as per the requirement given in this specification. The

meter shall be capable to measure in all the four quadrants. The meter’s measurement of

metering values such as Voltage, current, frequency, energy etc shall be based on true rms

measurements.

3.1 STANDARDS APPLICABLE

Sl.No. Standard No. Title

1 IS 14697 – 1999

With latest amendment

AC static transformer operated

Watt-hour and VAR-hour meters

for class 0.2s and 0.5s.

2 CBIP technical report no. 304

with latest amendment (only for

Magnet compliance)

Specification for AC static

electricity energy meters

3 IEC 62053-22 with latest

amendment

AC static Watt-hour meters for

active energy, class 0.2 s.

5 IS-9000

With latest amendment

Basic environmental testing

procedures for electronic and

electrical items.

6 IS 15959 DLMS Companion Standard (ICS)

Meters matching with requirements of other national or international standard which ensure

equal or better performance than the standards mentioned above shall also be considered.

When the equipment offered by the bidder conforms to standards other than those specified

above, salient points of difference between standards adopted and the standards specified in

this specification shall be clearly brought out in the relevant schedule and copy of such

standards along with their English translation shall invariably be furnished along with the

offer.

Further, CMRI (Common Meter Reading Instrument) shall confirm to CBIP Technical report

no.88 with latest amendments.

3.2 TECHNICAL PARAMETERS

The energy meter shall be indoor type connected with the secondary side of outdoor current

and voltage transformers.

Supply system:

Rated Voltage: 3x110/ 3 V Phase to Neutral (3P4W)

3x110 V Phase to Phase (3P3W)

Rated current:1 Amps / 5 Amps


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System frequency:50 Hz +/- 5%

Earthing system :Solidly grounded

Accuracy:Class 0.2S.

Actual primary values wherever applicable shall be programmable in the meter as per the

CT and PT value of the installed CTs and PTs.

3.3 GENERAL TECHNICAL REQUIREMENTS

3.3.1 The meter should be micro processor based 3 phase 4 wire type suitable for

connection to 3 phase 4 wire as well as 3 phase 3 wire system.

3.3.2 The meter shall compute the active energy and load import; active energy and load

export from the substation bus bars during each successive 15 minute integration

period block and store it in its non volatile memory.

3.3.3 The metering system shall normally operate with the power drawn through the PT

secondary voltage.

3.3.4 The meter shall be capable of withstanding surges and voltage spikes as per IS that

occur in the PT & CT circuits of EHV switch yards by providing necessary isolation

and/or suppression system built in the meter.

3.3.4 The active energy measurement shall be carried out on 3 phase 4 wire principle with

accuracy as per class 0.2S of IEC 62053-22. The meter shall compute the active

energy import and export and average frequency during each successive 15 minute

block and store in its memory along with its sign. It shall also display on demand the

active import and active export during the previous 15 minutes block. The values may

be displayed directly in secondary quantities.

3.3.5 Further the meter shall continuously integrate and display on demand the cumulative

active energy import and export from the substation up to date and time of meter

reading. The cumulative active energy import and export reading at each midnight

shall be stored in the meter memory for last forty-five (45) days and shall be reported

at Base Computer Software (BCS) end. Separate registers shall be maintained for

active energy import and export.

3.3.6 The average frequency (Hz) of previous 15 minute block shall be displayed on demand

in the metering system.

3.3.7 The meter shall continuously compute the average of the RMS values (fundamental

only) of the 3 lines to neutral PT secondary voltage as the percentage of 63.51 V and

then display the same on demand.

3.3.8 The meter shall compute the reactive power (VAR) on 3 phase 4 wire principle with

accuracy as per IEC 60687-2000 and integrate the reactive energy algebraically in

two separate registers, one for the period for which RMS voltage is higher than

103%(Reactive High), and the other for the period for which the RMS voltage is

below 97%.(Reactive Low). When lagging reactive power is being sent out from the

substation bus bars, reactive registers shall move forward. When reactive power flow


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is in the reverse direction, reactive registers shall move backwards. The Nett KVARH

for voltage high (103%) & Nett KVARH for low voltage (97%) both shall be displayed.

3.3.9 Further, the reactive energy shall also be available as four different energy registers

for viewing at BCS and on meter display:

a) Reactive energy lag while active energy import (Q1)

b) Reactive energy lead while active energy import (Q2)

c) Reactive energy lead while active energy export (Q3)

d) Reactive energy lag while active energy export (Q4)

3.3.10 Each metering module shall have a built in calendar in clock, having an

accuracy as per IS standard. The calendar and clock shall be correctly set at the

manufacturer’s works. Current date (day-month-year) and time (hour-minute-

seconds) shall be displayed on the front display section on demand. Clock

adjustment shall be possible at site using the common meter reading instrument

(CMRI) with proper security it shall be possible to set the clock with BCS clock.

An automatic back up for continued operation of the offered meters clock and

calendar shall be provided through a long life battery capable of supplying the

required power for at least 2 years under meter un-powered conditions. The offered

meters shall be supplied duly fitted with the battery that shall not be required to be

changed for at least 10 years as long as total VT interruption does not exceed two

years.

3.3.11Each meter shall have a unique identification code (serial number), which shall be

marked permanently on the front as well as in its memory.

3.3.12 Each meter shall have a non volatile memory in which the parameters as specified in

this specification shall be stored. The non volatile memory shall retain the data for a

period not less than 10 years under un-powered condition; battery backup memory

shall not be treated as NVM.

3.3.13 All meters shall be totally identical in all respects except for their unique identification

codes. They shall be totally sealed with no possibility of any adjustment at site except

for clock correction.

3.3.14 The meters shall safely withstand the usual fluctuation arising during faults in

particular, VT secondary voltage 115% of rated voltage applied continuously and

190% voltage of rated for 3 seconds and CT secondary current 120% of rated

current applied continuously and 20 times of maximum current applied for 0.5 seconds, shall not cause any damage to or the mal-operation of the meters.

3.3.15 The meter should be user configurable for all the parameters at site using the tools

provided for the meter.

3.3.16 Power factor Range:

The meter shall be suitable for full power factor range from zero (lagging) through unity to

zero (leading). The meter shall work as an active energy import and export and reactive

(lag and lead) energy meter. The energy measurement should be true four quadrant type.


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3.3.17 Power Supply Variation:

The meter shall be suitable for working with following supply variation

Specified operating range -0.8 to 1.15 Vref.

Limit range of operation - 0.7 to 1.2 Vref.

Frequency- 50 Hz 5%.

3.3.18 Accuracy:

Class of accuracy of the meter shall confirm to 0.2S as per the relevant standard. The

accuracy should not drift with time.

Each of the meter supplied should be tested and certified for accuracy from in a NABL

recognised laboratory in India.

3.3.19 Power Consumption:

i)Voltage circuit: The active and apparent power consumption in

each voltage circuit including the power supply of meter at reference voltage, reference

temperature and reference frequency shall not exceed 1.5 Watt per phase and 8 VA per

phase respectively.

ii)Current Circuit: The apparent power taken by each current circuit at basic current,

reference frequency and reference temperature shall not exceed 1 VA per phase.

3.3.20 Starting Current:

The meter should start registering the energy at 0.1% ln at unity power factor.

Maximum Current:

The rated maximum current of meter shall be 120% of basic current (Ib).

3.4 GENERAL AND CONSTRUCTIONAL REQUIREMENTS

3.4.1 Meters shall be designed and constructed in such a way so as to avoid causing any

danger during use and under normal conditions. However, the following shall be ensured:

a) Personnel safety against electric shock

b) Personnel safety against effects of excessive temperature

c) Protection against heat & spread of fire

d) Protection against penetration of solid objects, dust and water

3.4.2 All the material and electronic power components used in the manufacture of the

meter shall be of highest quality and reputed make to ensure higher reliability, longer life

and sustained accuracy.

3.4.3 The meter shall be designed with application specific integrated circuits. The electronic

components shall be mounted on the printed circuit board using latest Surface Mount

Technology (SMT).

3.4.4 All insulating materials used in the construction of metering module shall be non-

hygroscopic, non-ageing and of tested quality. All parts that are likely to develop corrosion

shall be effectively protected against corrosion by providing suitable protective coating.


44

3.4.5 The meter shall be suitable for being connected through test terminal blocks to the

voltage transformer having a rated secondary line to neutral voltage of 110/3 V and to

current transformers having a rated secondary current of 1A or 5A as per requirement.

Necessary isolation and suppression shall also be built-in, for protecting the meters from

surges and voltage spikes that occur in the VT and CT circuits of extra high voltage

switchyards.

3.4.6 Each meter shall have test output devices (visual) for checking the accuracy of active

energy (Wh), reactive energy (VARh) or apparent energy (VAh) measurement using a

suitable test equipment. This device shall be suitable for use with sensing probe used with

test benches or reference standards. The test output device shall have constant pulse rate

ie pulse/unit (KWh, KVARh) and its value (Meter constant) should be indelibly printed/

appropriately mentioned on the rating plate.

3.4.7 The metering system shall conform to the degree of protection IP 53 in the normal

working condition of IS12063/1EC529 for protection against ingress of dust, moisture and

vermin.

3.4.8 The meter base, meter cover, terminal block (as applicable) shall be made of

unbreakable, high grade, fire resistant, non-inflammable and good quality suitable material

to ensure safety. The manufacturer shall clearly indicate the material used.

3.4.9 The terminal block and the meter case shall be designed such that it ensures

reasonable safety against the spread of fire and shall not be ignited by thermic overload of

live parts in contact with them.

3.4.10 All terminals for CT and VT connections shall be arranged at the lower/ back side of

the meters. Terminal shall have a suitable construction with barriers and cover to provide a

safe and secure connection of CT & VT wires.

3.4.11 The metering system shall be compact in design. Entire design and construction shall

be capable of withstanding stresses likely to occur in actual service and rough handling

during transportation. The meter shall be convenient to transport and immune to shock and

vibrations during transportation and handling as per the relevant standard. Meter shall have

the capability and facility to compensate for errors of external measurement transformers i.e.

CT and VT

3.5 SEALING OF THE METER:

Reliable sealing arrangement shall be provided for meter to avoid fiddling by unauthorized

persons.

1. The meter cover shall have at least 2 sealing sources sealing

arrangement should be accessible from front only.

2. Separate sealing arrangements shall be provided for terminal cover.

3. Sealing arrangement should be suitable for application of poly

carbonate seals.

4. The manufacturer will provide his own seals on each meter before

dispatch.


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3.6 MARKING OF METER:

The marking on every meter shall be in accordance with IS 14697-1999.

Every meter shall have name plate beneath the meter cover such that the name plate cannot

be accessed without opening the meter cover and without breaking the seals of the meter

cover and the name plate should be marked indelibly.

The basic markings on the meter name plate shall be as follows:

i.Manufacturer's name and trade mark and place of manufacture.

ii.Type designation

iii.Number of phases and wires

iv.Serial Number

v.Month and year of manufacture

vi.Reference voltage & Frequency

vii.Rated secondary current (Basic current & Maximum current)

viii.Principal unit(s) of measurement

ix.Meter constant (Impulse/unit KWh/KVARh)

x.Class index of meter

The marking shall be indelible, distinct & readable from outside the meter.

3.7 Connection Diagram and Terminal Markings:

The connection diagram of the meter shall be clearly shown for 3 phase 4 wire system as

well as 3 phase 3 wire system, on inside portion of the terminal cover and shall be of

permanent nature or suitably pasted in meter. The meter terminals shall also be marked and

this marking should appear in the above diagram. In case of any special precautions need to

be taken at the time of testing the meter, the same may be indicated along with the circuit

diagram.

3.8 SALIENT FEATURES:

The metering system shall have the following additional salient features:

3.8.1 It shall be possible to check the healthiness of phase voltages by displaying all the

voltages on the display of the metering system.

3.8.2 The meter shall work accurately irrespective of phase sequence of the mains supply.

3.8.3The meter should remain powered up and functional even when either of any two

phases or anyone phases along with neutral is available to the meter.

3.8.4 The meter shall continue to record accurately as per prevailing electrical conditions

even if the neutral of potential supply gets disconnected.

3.8.5 The metering system shall be provided with adequate design to ensure compliance to

CBIP Technical Report No.304 (with latest amendments) for external magnetic influence

criteria (AC electro magnet or DC magnet).

3.8.6 It shall not be possible to change the basic meter software by any means in the field.

Moreover critical events like time set, MD reset operation, and tariff change shall be logged

by the meter. Such events shall be logged in roll over mode for up to twenty numbers.


46

3.9 Display of Measured Values:

3.9.1 The measured value(s) shall be displayed through Liquid Crystal Display (Alpha

numeric LCD backlit) section of metering system.

3.9.2 It should be possible to easily identify the single or multiple displayed parameters

through legends/ unit on the metering system display.

3.9.3The register shall be able to record and display starting from zero, for a minimum of

1500 hours, the energy corresponding to rated maximum current at reference voltage and

unity power factor. The register shall not roll over in between this duration.

3.9.4 Any interrogation/ read operation shall not delete or alter any stored meter data.

3.10 Meter Serial Number:

In addition to providing serial number of the meter on the name plate, the meter serial

number shall also be programmed into meter memory for identification through CMRI meter

reading print out. The meter serial number shall also be made available on the metering

system display on selection of appropriate option.

3.11 Display, Load survey capability and billing point requirements:

The meter shall be capable of recording 15 minutes average of the following parameters for

at least last 45 days and shall display the following parameters on suitable selection through

push button:

1.Date & Time

2.Imp WH

3.Exp WH

4.Imp Varh lag Q1

5.Imp Varh Lead Q2

6.Exp Varh Lag Q3

7.Exp Varh Lead Q4

8.Voltage RN

9. Voltage BN

10. Voltage CN

11.AVG Frequency

The meter shall be capable of recording 15 minute average of the following parameter for

last 45 days

1. Date & Time

2. Imp WH

3. Exp WH

4. Imp Varh lag Q1

5. Imp Varh Lead Q2

6. Exp Varh Lag Q3

7. Exp Varh Lead Q4


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8. Imp MD KW

9. Exp MD KW

10. AVG Volt Ph A

11. AVG Volt Ph B

12. AVG Volt Ph C

13. AVG Current Ph A

14. AVG Current Ph B

15. AVG Current Ph C

16. AVG Frequency

17. Net VARh High

18. Net VARh Low

15-minute average of the above parameters shall be available for last forty five (45) days. It

shall be possible to select either demand or energy view at the BCS end. The load survey

data shall be made available in the form of bar charts as well as in spread sheets at the

metering PC end. The Base computer software shall have the facility to give the complete

load survey data both in numeric and graphic form. All the 96 blocks shall be recorded for

data indication on block day and no supply period also shall be recorded .

3.12 Billing Parameters:

All billing parameters shall be transferred to billing registers; the parameter shall be

Active energy import

Active energy export

Apparent energy while active import .

Apparent energy while active export.

Cumulative Reactive energies for the voltage high condition.

Cumulative Reactive energies for the voltage low condition.

3.13 DAILY MIDNIGHT PARAMETERS:

The meter shall store following end day parameters for last forty five (45) days at

00:00 hrs.

1. Mid night Cum Imp WH (T)

2. Mid night Cum Exp WH (T)

3. Mid night Cum Varh High (V>103%)

4. Mid night Cum Varh Low (V<97%)

5. Mid night Cum Imp VARh Lag Q1

6. Mid night Cum Imp VARh Lead Q2

7. Mid night Cum Exp VARh Lag Q3

8. Mid night Cum Exp VARh Lead Q4

Other requirement as per CEA regulation

Above billing data, load survey data, anomaly information and instantaneous

parameters data shall be retrievable through the meter's communication port

through a common meter reading instrument (CMRI) using DLMS protocol as well as

transferred (down loaded) to a metering PC to get complete details for view and


48

print. It should be possible to export the data so collected into (common data

format). The supplier will provide necessary facilities for the same in the base

computer resident software. The necessary base computer software (BCS) for this

purpose shall be provided with complete details.

3.14 TOD (Time of day registers):

The meter shall have TOD registers for active energy import and export, apparent energy

import and export and apparent MD import and export. Maximum eight time of day registers

for each energy and MD can be defined. It shall be possible to program number of TOD

registers and TOD timings through software/CMRI with multilevel password security system

and authenticated transaction.

3.15 Maximum Demand (MD) Registration:

The meter shall continuously monitor and calculate the average demand (Active and

Apparent) during the integration period set and the maximum, out of these shall be stored

along with date and time when it occurred in the meter memory. The maximum demand

shall be computed on fixed block principle. The maximum registered value shall also be

made available in the meter reading. The integration period shall be set as 15 minutes it

shall be capable to change to other integration period (30/60 minutes), if required, through

suitable high level software /MRI as an authenticated transaction.

3.16 Maximum Demand Reset:

The meter should have any of the following MD resetting options:

(i) Auto reset of MD at predefined date and time shall be provided.

(ii) Resetting through meter reading Instrument or computer capable of

communicating with the meter with explicit password protection. The

manufacture shall provide a software module specifically for resetting MD

through MRI/Computer.

(iii) Manual via common MD reset button.

3.17 Data communication capability:

The metering system shall have multiple communication ports for local reading and remote

communication facility.

3.17.1 The meter shall be provided with a galvanically isolated optical communication port.

(Such as IEC, PACT, ANSI etc) with removable cover and with locking arrangement so that it

can be easily connected to a MRI / laptop for data transfer.

3.17.2 The optical communication port shall, be compliant to DLMS protocol and, also have

a sealing provision.

3.17.3 In addition to the optical port, the meter shall be provided with one communication

port either of Ethernet port IEC61850 protocol or RS-485 port with open protocol (MODBUS)


49

for integration with the sub-station automation system to facilitate real time data acquisition

of metered values and access of store metering records.

3.18 Real time clock:

3.18.1 The meter offered should have a real time clock and calendar based on a quartz

crystal with a battery totally independent of power supply.

3.18.2 A lithium maintenance free battery of long life (minimum ten years) shall be

provided for operation of time clock. It should be possible to select the various time

zones for various seasons of the year through suitable software built into the

electronic register.

3.18.2 The accuracy of the clock shall not be less than 5 minute in a year or better.

3.18.3 It should be possible to reset Real Time Clock of the meter through a manually

triggered command from Base Computer Software.

3.18.4 The clock of the trivector meter should be synchronised with the GPS clock of the

SAS.

3.19 Self Diagnostic Feature:

The meter shall be capable of performing complete self diagnostic check to monitor the

circuits for any malfunctioning to ensure integrity of data in memory location all the time.

The meter shall have indications/ display for unsatisfactory/non functioning/malfunctioning

of the following:

a) Time and date and

b) Non volatile memory failure indication

c) Low Battery indication at BCS

Above indication should be made available at BCS end also.

While installing the meter, it should be possible to check the correctness of CT/VT

connection to the meter and their polarity from the functioning of the meter for different

voltage injections with the help of vector phasor diagrams. For this purpose suitable software

for field diagnosis of meter connections with the help of MRI should be supplied.

The details of malfunctioning of time and date shall be recorded in the meter memory.

3.20 Anomaly detection features:

The meter shall have features to detect the occurrence and restoration of, at least, the

following common ways of anomaly:

a) Missing potential: The meter shall be capable of detecting and recording

occurrences and restoration of missing potential (1 phase or 2 phases) which can

happen due to intentional/ accidental disconnection of potential leads.

b) CT polarity reversal: The meter shall be capable of detecting and recording

occurrences and restoration of CT polarity reversal of one or more phases.

c) Current and voltage unbalance: The meter shall be capable of detecting and

recording occurrences and restoration of unbalance of current and voltage. Snap

shots (numerical values) of phase wise voltages, phase wise active currents,


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phase wise power factors and energy (active energy) readings shall be provided

with the above specified events.

d) Last hundred (100) events (occurrence + restoration), in total, shall be stored in

the meter memory on first in first out basis.

e) There shall be four separate compartments for logging of different type of

anomalies:

Compartment No.1 20 events of Missing Potential

Compartment No.2 20 events of CT Reversal

Compartment No.3 40 events for Voltage Unbalance,

Current Unbalance

Compartment No.4 20 events of Feeder Fail and Power

On/Off

Once one or more compartments have become full, the last anomaly event pertaining to the

same compartment shall be entered and the earliest (First one) anomaly event should

disappear. Thus, this manner each succeeding anomaly event shall replace the earliest

recorded event, compartment wise. Events of one compartment/category should overwrite

the events of their own compartment/category only.

4. ANNUNCIATORS:

i) The announciator unit shall be microprocessor based and field configurable. An

automatic self supervision system to monitor the functioning of the annunciation

system shall be provided with a means to alert the operator.

ii) The annunciations facia shall be provided with flasher, hooters and bell for

separate indication of tripping alarm/non-tripping alarms. All the panels shall

have the inter connection for accepting the alarm but the reset shall be from the

individual panel.

ii) The display in the announciator unit shall be High density LED type or cluster LED

type.

iii) Trip and non-trip discrimination shall be made in the fascia. For example all trip

fascia shall have red colour and non trip fascia white colour.

iv) A test, accept and reset push button facilities shall be provided for testing the

annunciation unit.

v) The annunciator unit should conform to the applicable parts of the IEC 60255/

Equivalent for type tests and routine tests.

vi) The annunciator unit shall be equipped with 230VAC/220VDC redundant power

supply modules.


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5. General requirements for Numeric type protection relays

i) Technology shall be based on numeric type.

ii) Equipped with Event recorder. Events storage shall be sufficient for the application.

minimum 200 events of storage is preferable and with a time stamp resolution of 1ms.

iii) Equipped with fault recorder to record in digital oscillography of instantaneous values of all

the relevant analog channels during faults and disturbances. Trigger criteria and record length

(pre-trigger and post trigger record length) for the recorder should be user configurable.

Storage capacity for Disturbance and fault record storage shall be sufficient for the

application.

Trigger criteria shall be user configurable to be triggered by any of the hardwired inputs and

outputs as well as virtual inputs and outputs , boolean logic, under/over threshold levels of

relevant analog channels etc. The sampling rate of fault recording shall be preferably 24

samples / cycle or higher.

iv) Relay casings shall have a degree of protection of IP 50 for relay enclosure,

IP50 for relay facia as per IEC 60529 or equivalent.

v) Time stamping of events shall be of resolution of 1ms.

vi) Equipped with optical Ethernet port for Bay level LAN interface and Support SNTP for time

synchronization with resolution of 1ms., IEC 61850 protocol with type test

certification/report for compliance with relevant parts of IEC 61850. The

compliance shall include :

-Model implementation conformance statement (MICS)

-Protocol implementation conformance statement (PICS)

vii) Equipped with communication port (USB or RS232 or Ethernet port) for relay

configuration, Data and records retrieval. It shall be possible to carry out firmware updates

of the numeric relay through internet connectivity free of cost.

viii) Equipped with self monitoring feature during start up and always while in service. A

relay fail alarm should be available in dry contact type alarm output. A relay healthy

indication shall be provided. The numeric relay shall be provided with diagnostic tools with

which it shall be possible to identify and display all the defective modules of the relay.

ix) Provided with the necessary software tools for complete configuration of the

protection relay, record retrieval, data retrieval. All firmware updates to the

numeric relays shall be feasible to be effected with download of files from

the manufacturer’s website free of cost.

x) Suitable to operate with the auxiliary DC supply voltage available in the sub-

Station (Nominal aux supply Voltage is 110V DC or 220V DC as per station DC supply

voltage.)

xi) Provision for display of alarms with LED/ LCD/Graphic display. The LEDs shall


52

be user programmable to any of the hardwired inputs and outputs as well as virtual inputs

and outputs.

xii) Support multiple relay settings for protection. The numeric relay should be provided with

a facility for settings file comparison. Facility should be provided to view the abstract of

adopted settings features of the relay.

xiii) All configuration files, data and records of the protection relay shall be stored in a non-

volatile memory and shall not be lost on absence of dc supply.

xiv) The relays should be suitable for testing with universally acceptable testing kit.

xv) The relay should be equipped with user configurable opto isolated Binary inputs and

potential free binary outputs as required for the specific application. Numeric relays with

non-programmable binary Inputs, non-programmable binary outputs, non-

programmable are not acceptable.

xvi) Where ever the numerical relay is connected to the 3phase VTs, the relay should be

equipped to display the angle of vectors with respect to A phase voltage vector i.e Va

angle=0 deg (Voltage vector of phase B and C with respect to Phase A ) similarly

current vector angle of phase A,B and C with respect to voltage vector A for relay

connected to 3 phase CTs.

xvii) All relays shall have screw type terminations for wiring terminations.

xviii) Thermal with stand capabilities:

3x In - Continuously

100x In - 1 Second

40x In for 3 second

xix) Equipped with Trip rated binary output contacts specifically for tripping with Minimum

of 4nos for 3-phase breaker application and 6nos for 3x1-ph breaker applications. The rating

of trip rated contacts shall be:

Make and carry continuously : 6 A , 300V.

Make and carry for 0.2 secs : 30A.

Breaking capacity for DC : 75W.

Breaking capacity for DC (when L/R is within 40 m sec) : 30 W.

- For alarm contacts:

Make and carry continuously : 4A DC/AC

Make and carry for 0.2 secs : 30A DC , 300V.

Operating time shall be less than 10ms for output contacts.

xx) Standards for type tests and routine tests compliance.

a) The numerical relay shall conform to the following standards with latest amendments:

- IS 8686 in general with impulse Impulse Voltage Withstand Test and High

Frequency Disturbance Test as per Class III of this standard.

- IS 3231 (Relevant parts) / IEC 60255


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- IEC 60255-22-2 : ESD

- IEC 60255-22-3 : Radiation susceptibility test

- IEC 60255-22-4 : Fast transient interference

- IEC 60255-21-2 : Shock test

- IEC 60255-21-1 : Vibration test

- IEC 60255- 11 : Alternating component (Ripple) in DC auxiliary energizing

quantity.

- Environmental performance requirements :

IEC 60255-1 : Operating temperature range

IEC 60255-1 : Storage temperature range

IEC 60068-2-30 : Humidity

b) In particular the following type tests should be complied.

a. Power Input:

i. Auxiliary Voltage

ii. Current Circuits

iii. Voltage Circuits

iv. Indications

b. Accuracy Tests:

i. Operational Measured Values

ii. Currents

iii. Voltages

iv. Time resolution

c. Insulation Tests:

i. Dielectric Tests

ii. Impulse Voltage withstand Test

d. Influencing Quantities

i. Limits of operation

ii. Permissible ripples

iii. Interruption of input voltage

e. Electromagnetic Compatibility Test:

i. 1 MHZ. burst disturbance test

ii. Electrostatic Discharge Test

iii. Radiated Electromagnetic Field Disturbance Test

iv. Electrical Fast transient Disturbance Test

v. Conducted Disturbances Tests induced by Radio Frequency Field


54

vi. Magnetic Field Test

vii. Emission (Radio interference level) Test.

viii. Conducted Interference Test

f. Function Tests:

i. Indication

ii. Commands

iii. Measured value Acquisition

iv. Display Indications

g. Environmental tests:

i. Cold Temperature

ii. Dry Heat

iii. Wet heat

iv. Humidity (Damp heat Cycle)

v. Vibration

vi. Bump

vii. Shock

c) All acceptance and routine test as stipulated in the relevant standards should be

carried out by the supplier in presence of TANTRANSCO’s representative without

any extra cost

6. Electro-mechanical Relays:

i) All relays shall confirm to IS: 3231

ii) Unless otherwise specified all auxiliary relays and timers shall be supplied in

non-draw out cases / plug in type modular cases.

7. RELEVANT REFERENCE STANDARDS:

IS/IEC 60947 Low-voltage Switchgear and Control gear

IS – 3231 electrical relays for power system protection

IS – 8686 static protective relays

IEC 60529 Degrees of protection procured by enclosures (IP code 31).

IS – 1248 & IS – 2419 indicating instruments

IS – 0722 energy meters, control switches (LV switching devices for

control and auxiliary circuits)

IEC 60687 /IS 14697 AC static transformer operated watthour and Var-hour meters.

IS – 0337,0337-1 -do-

IS – 0297(part 1-3) Dimensions for the mechanical structures of the

482.6mm (19”)series

IS – 6875 control switches (LV switching devices for control and aux. circuits)

IS – 0005 Colour for ready mix paints


55

IS – 1554(part –I) PVC insulated cables upto and including 1000 volts

IS –3842(part I-VII) application guide for protection

IS –6005 code of practice for phospating iron and steel

IES –602555-1-0 electrical relays –all-or-nothing elec. relays.

IEC – 60255-3,5,6,7,8,10,11,12,13,16 electrical relays for various specifications

IEC – 60255-21-2,3

IEC – 60255-22-1,2,3,4 electrical relays – vibration and disturbance etc.

IEC – 60255-23 electrical relays – contact performance

IEC 61850-3 EMI Immunity and environmental compliance(Electrical utility substations)

IEC 61850 All applicable parts of this standard certified by KEMA/ reputed laboratory.

Including type test certification/report for :

- Model implementation conformance statement (MICS)

- Protocol implementation conformance statement (PICS)

Note : For standards other than IS mentioned above, the equivalent or better IS standards

may be complied.

8. 230kV LINE PROTECTION:

MAIN-I & MAIN –II DISTANCE PROTECTION:

The numeric distance protection relays shall be comply with the following requirements.

1. The numerical distance protection relays shall comply with the specification for general requirements for numerical protection relay as furnished in this document. 2. a) Equipped with a minimum of 16 nos.of programmable opto-isolated binary inputs and a minimum of 20 nos. of programmable potential free binary outputs selectable for wetting voltage of 48 V / 110 V / 220 V DC, as available at the substation concerned.

b) A minimum of 14 nos. LEDs shall be provided for alarms.

3. The numeric relay shall be suitable for operating with Nominal PT input of 110V~ phase to phase, 63.5V ~ phase to ground, CT input of 1A and 5A (user selectable).

4. Main-1 and Main-2 distance protection relays should be of different manufacturers. 5. The relay shall be equipped with the following built in protection functions: √ 21 : Distance protection

a) The operating time of the distance relay shall be less than 40 ms (including trip relay time) for any type of fault.

b)There shall be a minimum of 3 forward and 1 reverse selectable distance protection Zones.

c)Have six independent loop measurements system to cater phase to phase and phase to ground faults.

d) Polygonal characteristics for phase to phase fault and polygonal characteristics for phase to earth fault. In case of polygonal characteristics X and R or Z and R should be independently settable.

e) Have an impedance setting range of 0.05 – 120 ohm


56

f) Have a requisite independent continuously variable time setting with range 0-3 sec. g) Have a resetting time of less than 40 millisec. h) Have facility for zero-sequence compensation for earth fault on all zones of measuring

element. i)The relay shall be suitable for single phase tripping as well as for three phase tripping. j)Have cross polarization, assure 100% directional sensitivity for unbalance fault and

memory for balanced faults. k)Have built in fault locator with following features.

i) Shall display the fault location either in percentage of line length or in actual

distance in kilo meter based on reactance setting.

ii) Shall have an accuracy of +/-3% or better and watch dog output.

√ 98 : Fuse failure detection for single, two and three phases

The scheme shall incorporate necessary precaution in measurement to block the

distance protection. However, during blocking period the relay shall have over current

protection facility for fault detection.

√ 50/27 : SOTF

√ 25 : Synchro check function

√ 50BF : LBB Function

√ 79: Built in auto reclose function with single shot, single phase reclose with adjustable

dead time setting of 0.1sec to 1sec, and with adjustable reclaim time of 1 to 250sec.

√ 27/59 : Under voltage/ over voltage protection element. This protection element should

have two independent stages.

√ 50N/51N IDMT directional earth fault relay with adjustable setting range of 10 to 80%

with characteristic curve for normal inverse, very inverse and extremely inverse of both IEC

and IEEE curves. This facility should also be available with BLOCKING LOGICs.

√ DR : Disturbance recorder with minimum 8 analog and 12 digital inputs and with minimum memory capacity to store at least 8 disturbance records with each record of minimum 10 cycles. The sampling of analog inputs shall be at least 16 per cycle. Shall have features to adjust pre fault and post fault time. √ Event recorder shall be able to store at least 1000 time tagged events. The resolution of event recorder shall be at least 1 millisecond. √ Load enchroachment discrimination facility to prevent false tripping due to encroachment of heavy loads.


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6. The distance protection function shall be provided with the following functionalities, features: √ 68 : power swing blocking protection The power swing shall be detected by rate of change of impedance with suitable characteristics. The blocking shall have continuously adjustable time delay with setting range of not less than 2sec or shall have feature to block the tripping as long as it exists. The relay shall have feature to unblock during fault. It shall be explained how blocking is effected during power swing for phase to earth fault, phase to phase faults and three phase faults. In each case the relay shall have feature to unblock during fault and with facility to block each distance zone independently.

√ 85 : Communication aided schemes PUTT, POTT, Blocking, weak infeed and current reversal logic.

√ 46BC : Broken conductor detection

7. Provided with metering function of class 1.0 accuracy or better and user programmable display.

9. 230 kV LINE PROTECTION (USING LINE DIFFERENTIAL RELAY WITH BUILT-IN

DISTANCE PROTECTION):

1. Comply with the general requirements for numeric type relay furnished in this

technical specification document.

2. Longitudinal differential protection shall be based on current. It shall be numerical

phase segregated type protection scheme (summation CT type scheme is not

acceptable) for application at each end of the line. The protection shall be designed

to detect all kinds of poly-phase and ground faults. Its operation shall compare

currents on a per phase basis.

- The protection shall be designed for fast operation and be suitable for protection of

lines.

- The relays when applied at both ends of the line must operate simultaneously to

clear a fault rapidly whether fault current is fed from one end or both.

-The relays should be designed to ensure time synchronization with the remote end

relay when same model relay is put in service at the remote end of the line with

direct optic fibre connectivity of up to 10km distance or as required for longer line at

site for implementation of line protection. The relay must be compatible to operate

with the remote end relay for implementation of line protection.


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-The relay shall have display for indicating/display phase, differential and bias current magnitudes.

- The maximum operating time of the relay in respect of line differential

protection shall be 20ms.

-The relay shall have direct inter-trip/permissive inter-trip facilities selectable.

87L : Current differential protection

21 : Distance protection

50/51 : Non-directional phase over current protection

50N/51N : Non-directional stand by earth fault protection

68 : Power swing blocking

2. The relay shall be equipped with IEEE C37.94SM, 1310nm, Single mode compliant dual channel of fibre optic communication port’s for relay to relay communication for implementation of line differential protection. Fiber optic patch cables with end connectors of sufficient length to connect the relay port to the fiber optic patch panel shall be provided for each relay. Exact length of this FO cable shall be ascertained at site, 1 set of FO patch cable is required as spare for each site. 3. The relay shall have the built in distance protection functionality as specified for

distance protection relay for line protection.

10. 110kV LINE PROTECTION:

A. MAIN DISTANCE PROTECTION:

The numeric distance protection relays shall be comply with the following requirements.

1. The numerical distance protection relays shall comply with the specification for general requirements for numerical protection relay as furnished in this document. 2. a) Equipped with a minimum of 16 nos.of programmable opto-isolated binary inputs and a minimum of 20 nos. of programmable potential free binary outputs selectable for wetting voltage of 48 V / 110 V / 220 V DC, as available at the substation concerned.

b) A minimum of 14 nos. LEDs shall be provided for alarms.

3. The numeric relay shall be suitable for operating with Nominal PT input of 110V~ phase to phase, 63.5V ~ phase to ground, CT input of 1A and 5A (user selectable).

4. The relay shall be equipped with the following built in protection functions: √ 21 : Distance protection

a) The operating time of the distance relay shall be less than 40 ms (including trip relay time) for any type of fault.

b)There shall be a minimum of 3 forward and 1 reverse selectable distance protection Zones.


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c)Have six independent loop measurements system to cater phase to phase and phase to ground faults.

d) Polygonal characteristics for phase to phase fault and polygonal characteristics for phase to earth fault. In case of polygonal characteristics X and R or Z and R should be independently settable.

e) Have an impedance setting range of 0.05 – 120 ohm f) Have a requisite independent continuously variable time setting with range 0-3 sec. g) Have a resetting time of less than 40 millisec. h) Have facility for zero-sequence compensation for earth fault on all zones of measuring

element. i)The relay shall be suitable for single phase tripping as well as for three phase tripping. j)Have cross polarization, assure 100% directional sensitivity for unbalance fault and

memory for balanced faults. k)Have built in fault locator with following features.

i) Shall display the fault location either in percentage of line length or in actual

distance in kilo meter based on reactance setting.

ii) Shall have an accuracy of +/-3% or better and watch dog output.

√ 98 : Fuse failure detection for single, two and three phases

The scheme shall incorporate necessary precaution in measurement to block the

distance protection. However, during blocking period the relay shall have over current

protection facility for fault detection.

√ 50/27 : SOTF

√ 25 : Synchro check function

√ 50BF : LBB Function

√ 79: Built in auto reclose function with single shot, single phase reclose with adjustable

dead time setting of 0.1sec to 1sec, and with adjustable reclaim time of 1 to 250sec.

√ 27/59 : Under voltage/ over voltage protection element. This protection element should

have two independent stages.

√ 50N/51N IDMT directional earth fault relay with adjustable setting range of 10 to 80%

with characteristic curve for normal inverse, very inverse and extremely inverse of both IEC

and IEEE curves. This facility should also be available with BLOCKING LOGICs.

√ DR : Disturbance recorder with minimum 8 analog and 12 digital inputs and with minimum memory capacity to store at least 8 disturbance records with each record of minimum 10 cycles. The sampling of analog inputs shall be at least 16 per cycle. Shall have features to adjust pre fault and post fault time.


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√ Event recorder shall be able to store at least 1000 time tagged events. The resolution of event recorder shall be at least 1 millisecond. √ Load enchroachment discrimination facility to prevent false tripping due to encroachment of heavy loads. 5. The distance protection function shall be provided with the following functionalities, features: √ 68 : power swing blocking protection The power swing shall be detected by rate of change of impedance with suitable characteristics. The blocking shall have continuously adjustable time delay with setting range of not less than 2sec or shall have feature to block the tripping as long as it exists. The relay shall have feature to unblock during fault. It shall be explained how blocking is effected during power swing for phase to earth fault, phase to phase faults and three phase faults. In each case the relay shall have feature to unblock during fault and with facility to block each distance zone independently.

√ 85 : Communication aided schemes PUTT, POTT, Blocking, weak infeed and current reversal logic.

√ 46BC : Broken conductor detection

6. Provided with metering function of class 1.0 accuracy or better and user programmable

display.

B. BACK-UP PROTECTION FOR 110kV FEEDERS

: DIRECTIONAL O/C &E/F RELAY:

The relays shall be of numerical type

1. The numerical over-current protection relays shall comply with the specification for

general requirements for numerical protection relay as furnished in this document.

2. The numeric relays shall be equipped with sufficient digital output potential free contacts

for trip outputs, alarms and for the protection scheme implementation.

3. The numeric relay shall be suitable for operating with Nominal PT input of 110V~ phase

to phase, 63.5V ~ phase to ground, CT input of 1A and 5A (user selectable).

4. Features and characteristics.

Current settings : O/C Phase fault setting : 20 to 200 % of rated current in at least 1% steps E/F setting: 10% to 80 % of rated current in at least 1% steps. Time multiplier : 0.05 to 1.0 in steps of 0.01 for phase fault and earth fault settings. Definite Time Delay : 0.05 to 20 Sec. in steps of 0.01 sec. Drop out to pick up ratio : > 95%. Inverse Characteristic : Normal Inverse (3 Sec, 1.3 Sec), Very Inverse &Extremely Inverse of IEC curves. ( Curves should be Selectable at site)


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Characteristic curves and settings shall be separately selectable for phase fault and earth fault. High set Instantaneous Unit : O/C : 50 % to 2500 % of rated current in steps of 50% or lesser step size. E/F : 50 % to 500 % of rated current in steps of 50% or lesser step size. Current settings o/c – 50 to 200% & E/F – 10 to 80% in convenient steps

Time multiplier settings 0 to 1 with a resolution of 0.01sec.

Have built in IDMT directional O/C and E/F relay with characteristic curve for

normal inverse, very inverse, extremely inverse of both IEC and IEEE curves

Directional element

P.T voltage : 110 V A.C

Phase fault : + 90 deg to -90 deg

E/F fault : + 90 deg to -90 deg

Equipped with in built 50LBB function.

Zero sequence voltage shall be based on 3-phase voltages.

5. Relay shall be provided with Event record & Fault record as stated below:

Storage and display of at least 100 event records with date and time stamp.

Storage and display of at least 16 fault records comprising information of Fault element

(R/Y/B/Earth) , Type of fault, Value of fault in true rms Amps.

6. Relay shall be provided with LED Indications for :

i) Protection healthy or In service

ii) Pickup

iii) Trip operated

iv) High set operated

v) Phase O/C operated

vi) Earth O/C operated

Note : Individual indication of hand reset type shall be provided for each O/C, Earth fault

element & each high set element.

11.BUS-BAR PROTECTION for 230kV / 110KV BUS:

1. The numerical bus bar protection relays shall comply with the specification for general requirements for numerical protection relay as furnished in this document.

2. Bus bar protection relay shall be of numerical low impedance, centralized type and shall have operate and restraint characteristics.

3. have maximum operating time up to trip impulse to trip relay for all types of faults of 25 milli seconds at 5 times setting value.

4. operate selectively for each zone of bus bars for all types of faults i.e Phase to phase,

Phase to ground faults including high resistive faults.

5. be stable for through fault condition up to 50KA fault level. 6. incorporate check zone feature for each phase and clear zone indication. The check


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zone shall be without any switching. Also check zone shall not over stabilize during internal fault due to unequal source & load distribution.

7. shall include one overall check zone protection in addition to single/multiple zones specified.

8. incorporate continuous supervision of CT secondary’s against any possible open circuit and if it occurs, shall render the relevant zone of protection inoperative after a time delay and initiate an alarm. However facility to unblock CT supervision in case of actual fault occurring in the bus shall be provided.

9. be phase segregated type with separate relay for each phase and provide

independent zone of protection. If bus section is provided, then each side of the bus

section shall have separate set of bus bar protection scheme. The bus section

breaker and bus coupler breakers shall be covered by overlapping bus bar protection

scheme of respective buses.

10. be transient-free in operation.

11. includes continuous DC supply supervision.

12. include provision for protection IN/OUT for each zone and check zone.

13. The numeric relay shall be suitable for operating with CT inputs of 1A and 5A (user

selectable). The secondary of the CT shall be directly connected to the Bus bar relay

without the aid of external auxiliary CTs. Ratio correction shall be possible with

through the relay configuration tools itself.

14. the relay must have harmonic rejection and shall not operate on second and third harmonics. Second harmonic rejection ratio 2:1 minimum, third harmonic rejection ratio 40 :1 minimum.

15. the high speed tripping relays (96) for tripping each feeders on actuation of bus bar protection shall be on respective feeder relay panels and necessary provision for running the tripping bus wires to actuate these relays shall be made. The protection scheme shall be wired in such a way that both check zone and bus sectionalizing zone schemes shall operate to isolate the respective faulty bus bar for internal fault condition.

16. The relay should be equipped completely for supporting three numbers spare circuits

in addition to all the circuits for feeders/ bays depicted in the single line diagram for

the sub-station.

17. The bus bar protection relay should support various bus architectures selectable by

means of the relay configuration (Single bus bar, Double bus bar, Breaker and a half

bus bar, two section bus bar with a bus tie, Double bus bar with transfer bus and tie

breaker) for its bus bar protection.

18. The relay shall incorporate dynamic bus replica and provide necessary end

zone fault protection depending on the bus bar protection CT’s location. The status

of isolators shall be ascertained by hardwired double indication method i.e Both N/C

and N/O contact to be used.

19. The relay shall facilitate through relay configuration tools as well as through user

interface keypad/controls the following requirements:

- Adopting multiple CT ratios of different bays

- CT polarity selection

- Bay IN/OUT selection

- Bus differential enable or disable etc

- IN/OUT selection for each zone and check zone.

20. Facility to monitor the bay differential currents and bus restraint current for each


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zones shall be supported in the relay display as well as through configuration tools.

21. The bus bar protection of respective bus sections shall trip respective set of bus bar lockout relays and shall initiate BF of respective CB. The bus bar protection scheme of each bus section shall be developed such that one lockout relay shall be provided with each circuit breaker. 22. The bus bar protection relay shall be provided with built in breaker fail (50BF) / LBB

protection for all the connected circuits. For LBB protection

Operating time : 15 ms

Resetting time : 15 ms

LBB protection scheme shall be implemented to get individual initiation from the

corresponding phase of main protections of line for each over current element.

However common three phase initiation is acceptable for other protections and

transformer/reactor equipment protections.

Have setting range of 20% to 80% of rated current.

Have timer with continuously adjustable setting range of 0.1 to 1 second.

23. The relay shall be equipped with VT modules to measure the bus voltages so that reference load flow can be taken from bus voltage as well as for providing secure operation in case of inadvertent shorting of CT.

12. TRANSFORMER PROTECTION (APPLICABLE FOR 230KV/ 110KV AUTO

TRANSFORMER ) :

a) BIAS DIFFRENTIAL PROTECTION RELAY FOR THREE WINDING

TRANSFORMER PROTECTION:

The numerical differential protection relays shall be comply with the following

requirements.

1. The numerical differential protection relays shall comply with the specification for general

requirements for numerical protection relay as furnished in this document.

2. The numeric relay shall be suitable for operating with CT inputs of 1A and 5A (user

selectable).

3. Differential protection features and characteristics:

i. Based on low impedance differential principle for protection of three winding

transformer. Three phase with faulty phase identification.

ii. Shall have three instantaneous high set over current units with facility to adjust 5 to 20

times normal current.

iii. Shall have second and fifth harmonic restraint feature with second harmonic content in

the range of 15 to 35%. Transformer inrush restraint functionality shall be provided.

Inrush and CT saturation shall not influence the differential function.

iv. Facility to set transformer vector group and CT ratio selection/ correction through relay

configuration software tools.

v. Basic bias setting 20 to 40% in steps 1%.

vi. Operating current setting range 15% to 30%.

vii. have operating time not greater than 35ms at 3 times normal current.

viii. Maximum operating time for instantaneous operation: 25ms +/-4% of set value.

ix. The differential protection shall have adjustable characteristics with adaptive


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differential feature to maintain stability in case of through faults.

x. The protection relay shall be equipped with unrestrained differential protection element

for fast tripping on heavy internal faults.

xi. Facility to view the transformer differential current and bias current directly from the

Relay display as well as through configuration software.

4. Shall have inbuilt restricted earth fault protection and inbuilt over fluxing protection.

i) Over Fluxing Protection shall be provided for HV side and shall comply with the following

requirements:

(a) operate on the principle of Voltage to frequency ratio and shall be phase to phase connected

(b) have inverse time characteristics, matching with transformer over fluxing withstand

capability curve.

(c) provide an independent 'alarm' with the time delay continuously adjustable between

0.1 to 6.0 seconds at values of 'v/f' between 100% to 130% of rated values

(d) tripping time shall be governed by 'v/f' Vs. time characteristics of the relay

(e) 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, the rated values, respectively.

(f) have an accuracy of operating time, better than +/-10%

(g) have a resetting ratio of 95 % or better

(h) Over flux protection shall be provided in the HV

ii) Restricted Earth Fault Protection shall

(a) be single pole type

(b) be of current/voltage operated type

(c) have a current setting range of 10-40% of 1 Amp./ have a suitable voltage setting range

(d) be tuned to the system frequency

5. The protection relay shall be equipped with built in Over excitation protection (ANSI 24).

6. The protection relay shall be equipped with built in thermal overload protection.

7. The disturbance recording functions should be integrated in the relay module. The

disturbance recorder shall have facility to record at least 4 numbers of digital signals apart

from digital signal from the relay and currents in HV&LV winding. Recording memory

capacity: 5secs.

8. Equipped with sufficient numbers (minimum is 16 nos ) of programmable of

opto isolated Binary inputs and sufficient numbers (minimum is 20 nos) of programmable

potential free binary outputs with wetting voltage for digital inputs to be field programmable

to 48V / 110V / 220V DC.

9. The minimum number of LEDs shall be 14 nos, In case Graphic display is provided then

atleast 4 nos LEDs shall be provided for important alarms.

b) BACKUP NON-DIRECTIONAL OVER CURRENT PROTECTION WITH HIGH SET

INSTANTANEOUS FOR HV:

Specification same as that required for numerical DIRECTIONAL O/C &E/F RELAY but without

directional feature. However the phase and ground Over current functions shall incorporate


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a harmonic restraint feature.

c) BACKUP NON-DIRECTIONAL OVER CURRENT RELAY FOR LV:

Specification same as that required for numerical DIRECTIONAL O/C &E/F RELAY but without

directional feature.

13.0 Under Frequency Relay :

* Comply with the general requirements for numeric type relay furnished in this technical

specification document.

* The relay support programmable scheme logic. The PSL shall support Boolean logic and

shall be possible to configure using preferably IEC 61131-3 standard compliant tools.

* The relay shall be equipped with separate protection elements for 4 independent stages for

under frequency protection, 3 independent stages for (81RF) Frequency supervised rate of

change of frequency protection.

* The relay shall have a discrete (digital) selection unit with built in timer and associated tripping relays to activate tripping.

Under frequency protection function (81U)

1 No of Stages 4 independent Stages

2 Frequency range 45 Hertz to 55 Hertz

3 Frequency steps In 0.01 HZ

4 Timers

One timer for each stage independently programmable

settings

5 Timer setting Programmable between 0 to 5 sec in step of 0.01 sec

6 Operating time Within 100ms

7 No of phases 3

Frequency supervised df/dt protection (81RF)

1 No of Stages 3 independent Stages

2 Settings range 0.1 HZ/Sec to 1 HZ/Sec in steps of 0.1HZ/Sec

Operational

accuracy 5 milli Hz./sec

3 Measuring cycles Programmable between 2 to 10 cycles

4 Operating time Within 100ms

5 No of phases 3


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* The relay shall be equipped with built in VT supervision function and 2 protection elements

for under voltage blocking function selectable between IDMT/DT to block all the frequency

based protection elements. The under voltage measurement shall be possible on phase to

phase as well as phase to neutral basis.

* The relay shall have negative sequence overvoltage function. zero sequence voltage

detection for VT fuse fail detection shall be used so that the relay does not maloperate on

system ground faults

* Operating Voltage : 50 to 100% of nominal voltage with provision for selection. Nominal voltage is 110V AC (Phase to phase). Ph-N (63.5V~ nominal ) voltage shall also supported. Facility for under voltage blocking shall be provided with programmable range for voltage setting. * The relay functionality shall include measurement of phase/ line voltages (True rms) , sequence voltages , system frequency and phase angles. * Relay should have the capability to build the logic with which one should be able to adapt to the load shedding requirement of the substation. *Blocking of each of the protection elements shall be possible with user interface through keypad/ buttons as well as through configuration port and Engineering work station. * The relay shall be highly reliable and immune to transient and surges. In case of any

component failure in the relay, the relay should not cause undesired trip.

Relay outputs:

* It shall be possible to assign each of the trip outputs reserved for feeders to any of the three stages of under frequency protection function as well as f+df/dt protection. Indications

* The relay shall be equipped with indication lamps that is programmable to any of the

protection elements, inputs, outputs and logic outputs. *Programmable LED indications shall be provided in the relay for each stage of protection

elements operated and for faulted phase indication.

Relay Inputs:

* The relay shall be highly reliable and immune to transient and surges.

* The relay shall be equipped with sufficient quantity of opto-isolated digital inputs for facilitating external blocking of under frequency as well df/dt protection elements for each feeder. Necessary isolation links should be provided to facilitate manual isolation of under 81U and 81RF protection feeder wise. * The relay shall be equipped with sufficient opto-isolated digital inputs and potential free digital outputs to accommodate feeders all the feeders plus 3 spare feeders for future use.


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14.0 MISCELLANEOUS PROTECTION

14.1 D.C. Supply Supervision Relay.

The relay shall monitor continuously D.C. Supply to Protection System. The de-

energization of this relay will indicate the DC Supply failure. Auxiliary supply for the

relay is 110 V DC / 220V DC (Exact voltage will be specified at the time of issue of

indent). The relay shall have a time delay on drop off of not less than 100 milli

second. The relay shall be provided with operation indicators (Reverse flag) self

reset. Sufficient number of contacts potential free may be provided. Separate relays

for dual source are to be provided.

14.2 Trip Circuit Supervision Relays.

The relays shall supervise the healthiness of trip circuit continuously (Both pre-closing

and post-closing conditions of the circuit breakers). The relay shall be capable of

monitoring the healthiness of each phase trip coil and associated circuits of the circuit

breaker during “ ON and OFF ” conditions. The relay shall work on 110 V DC / 220V

DC with allowable margin as the case may be. The relay shall have adequate

contacts for providing connection to alarm and event logger, self reset. The relay

shall have a “ time delay on drop off of not less than 200 milli seconds ” and

provided with Operation indicators. The short circuiting of any series resistance

provided in this relay or short circuiting the coil of the relay should not energize the

trip coil of the breaker.

14.3 Tripping (Master) Relay :

-For tripping of feeder / transformer breakers in a station on operation of protective

relays and for interlock purposes. The relay shall be voltage rated for station DC

supply with allowable margin of variation, be instantaneous (Operating time not

exceed 10 milli seconds).

-Reset within 20 milli seconds.

- Hand and electrical reset type

-Have adequate contacts to meet the requirement of scheme, other functions like

auto reclose relay, LBB relay as well as to cater to associated equipments like SER,

DR etc., to be provided with operation element/ coil.

14.4 Check Synchronizing relay:-

Synchro check function should be part of the main relay.

The synchronism and energizing check functions shall feature:

Settable voltage, phase angle, and frequency difference.

Energizing for dead line - live bus, live line - dead bus or

dead line– dead bus with no synchro-check function.

Synchronising between live line and live bus with synchro-check function.

The relays equipped with synchronism and energizing check shall comply with the

requirements as mentioned above.


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14.5 Relay for Automatic DC selection

Relay for automatic DC selection shall comply with the relevant parts of IEC 60255 / IS

standards. The performance of the relay shall be satisfactory so as to facilitate minimum

interruption of DC during DC change over and the DC interruption during change over shall

not cause the numeric relays to reboot / switch off, also all the numeric relays shall be type

tested for DC supply interruption and suitable to function without reboot/power off during

the DC change over. In case diode oring based DC selection scheme is proposed, then the

scheme should ensure that any kind of component failure will not cause shorting of the input

DC sources, the dielectric isolation between the two input DC sources should be sufficient for

safe operation.

******


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SECTION-VI C

TECHNICAL SPECIFICATION FOR SUB-STATION AUTOMATION SYSTEM (SAS)

1) GENERAL :

This specification provides for complete Design & Engineering, Manufacture, FAT (Factory

acceptance test), packing, shipment, insurance, transport and delivery to site, installation,

testing and commissioning with SAT (Site acceptance test) of the substation automation

system completely as described in the following sections to control and monitor the 230 kV

bays, 110KV bays, 230 kV/ 110 kV Auto transformers, and associated equipments at the

substation and all the station auxiliary equipments of the substation. The scope of SAS

commissioning is inclusive of the system integration of control and protection panels with

SAS and system integration of online transformer diagnostic monitoring system (Where

applicable) supplied by others, in this context all necessary materials and works are included

in the SAS scope of supply and commissioning.

The testing and commissioning of the SAS Equipments shall be carried out by engineers

authorized /certified by the original equipment manufacturer of SAS with the witness of the

concerned TANTRANSCO P&C engineer and the completion of all the works should be to the

satisfaction of TANTRANSCO.All the relevant files such as ICD, SCD,SSD,CID etc shall be

updated in the relevant devices and provided in soft copy in CD and in a Spare HDD (Spare

HDD to be supplied in the spares for SAS) to the concerned Protection & Communication

engineer of TANTRANSCO.

The details of Electrical bays in the substation are given in the single line diagram of

respective substation.

The substation automation system (SAS) shall be installed to control and monitor all the

substation equipments from Local Control room as well as from the remote load dispatch

centre/ Master. The SAS shall be designed such that it enables the user for control &

monitoring of the substation at the HMI level (through Operator work stations), at the Bay

level ( through BCU) and at the switchgear level/Manually (facilitated by TNC switch, Energy

meters etc).

The SAS shall be based on a decentralized architecture and on a concept of bay-oriented,

distributed intelligence. Functions shall be decentralised, object-oriented and located as close

as possible to the process. The main process information of the station shall be stored in

distributed databases. The typical SAS architecture shall be structured in two levels i.e.

station and bay level. The database sizing shall be sufficient to accommodate for current

Single line diagram and future expansions.

At bay level, the IEDs shall provide all bay level functions regarding control, monitoring and

protection, inputs for status indication and outputs for commands. The IEDs should be

directly connected to the switchgear without any need for additional interposition of

transducers.


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The data exchange between the electronic devices on bay and station level shall

take place via the communication infrastructure. This shall be realized using fiber

optic cables, thereby guaranteeing disturbance free communication. The fiber

optic cables shall be run in suitable conduit pipes. Data exchange is to be

realized using IEC 61850 standards with a external managed switched Ethernet

communication infrastructure in decentralized ring configuration.

o All the numerical IEDs must be fully IEC 61850 compliant and must have the

following features.

o Peer-to-peer communication using GOOSE messages (IEC 61850) for

interlocking.

o Interoperability with third party IEC 61850 compliant devices

o Generate XML file for integration/engineering with vendor independent SCADA

systems.

o Should be directly connected to the inter bay bus on IEC 61850 without the

use of any gateways. Connections of bay protection IEDs to the IEC 61850

bus through the bay control units are not acceptable.

The sub-station configuration language shall be based on XML format shall be defined for

system configuration and the same shall be furnished for system integration and end user.

Failure of one set of fiber shall not affect the normal operation of the SAS.

However, it shall be alarmed in SAS. Each fiber optic cable shall have adequate

spare fibers.

At station level, the entire station shall be controlled and supervised from the station

HMI. It shall also be possible to control and monitor the bay from the bay level equipment at

all times, accordingly a graphic user interface (GUI) display shall be provided in each bay

control unit. The GUI display in the BCU shall display the status of the bay devices (breakers,

isolators, switches etc) in real time along with the related measurands. All alarms related to

the respective bay shall be displayed in the BCU through its LED’s or in its GUI display as an

alarm list/scroll. A TNC switch shall be provided for each breaker in the respective C&R panel

of the bay for facilitating manual operation for facilitating operation in emergency condition.

The BCU’s shall be located in the respective relay panel itself and Multiple BCU’s shall

not be housed in a single panel. Clear control priorities shall prevent operation of a single

switch at the same time from more than one of the various control levels, i.e. station HMI,

bay level or apparatus level. The priority shall always be on the lowest enabled control level.

The station level contains the station-oriented functions, which cannot be realized at

bay level, e.g. alarm list or event list related to the entire substation etc. All the data cabling

& other interconnections shall be through fibre optic cables wherever possible except for

power supply.

Communication with the remote control centers State Sub-load Dispatch Centre through

Gateway on IEC 60870 – 5 – 101/104 of SCADA/EMS system through PLCC Modem’s/Fibre

optic interface equipment as applicable. This interface shall support communication to the

remote control centre on IEC 60870 – 5 – 101/104 through redundant communication ports.

TAN TRANSCO Engineers shall be coordinated for integration. The data should be made

available for the polling schedule of the SCADA/EMS system at State Sub-load Dispatch

control centre. Any support required for completing the task shall be in bidders scope.


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2) FUNCTIONAL REQUIREMENTS :

a) Control of all equipments mentioned in the Single Line diagram.

b) Supervisory function (i.e.) Data Acquisition, Processing, Monitoring,

Analysis and Diagnostic,

c) Data Exchange

d) Report Generation and Printing.

e) The updating times on the operator station under normal and calm conditions

in the substation shall be as follows:

Function Typical values Exchange of display (first reaction) < 1 s Presentation of a binary change in the process display < 0.5 s Presentation of an analogue change in the process display < 1 s From order to process output < 0.5 s From order to updating the display < 1.5 s

3) CONTROL:

Basic Functions :

a) To execute commands from both operator work stations HMI.

b) Select before execute commands.

c) Operation of all 230 kV and 110 kV Circuit breakers and all the associated motorized

Isolators through output contacts of corresponding BCUs.

d) Operation of On load Tap Changer: Manual Operation from HMIs through BCU is

envisaged.

e) Provide interlocking of different switchgear/isolators for their correct and safe

operation.

f) Monitoring of Circuit breakers, Isolators and Earth Switch contacts (status)

4) OTHER FUNCTIONS:

a) Switching sequences. b) Time synchronizing through GPS. c) Monitoring of DC system input & output supply Voltages of chargers,load currents,

Battery voltages etc. d) Monitoring of fire-protection system. e) Monitoring of DG operation. f) Changing relay settings of all numerical relays from Engg./DR works

station with suitable software. g) Storage of data. h) Collection of disturbance record files from various relays and analysis of the same

from Engg/DR works station with suitable software. i) Auto re closure selection and monitoring. j) Bus PT change-over. k) Carrier IN/OUT selection. l) Synchro check provision. m) Reset facility from HMI for reset of all numerical relays, master trip relays. n) Monitoring of control room temperature, kiosk room temperature etc. Note : All necessary devices such as transducers, auxiliary relays, etc. as may be required to monitor substation auxiliary equipment (DG set, Auxiliary DC source, alarm system, RMU, etc.) are inclusive of the scope of substation automation.


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5) INTERLOCKING:

The interlocking function provision through logic gates prevents unsafe operation of

equipments such as breakers ,isolators and earthing switches for all switching

operation within a bay or station . An override function at Bay level shall be provided,

which can be enabled to by-pass the interlocking function via a key/password, in

cases of maintenance or emergency situations. This over ride function should be

accessed with higher level pass word security. All critical interlocks such as close

operation of breakers and isolators etc shall be implemented in hardwired method

also. In order to provide additional security for safe operation of the primary

equipments, the hard wired interlock shall also be implemented preferably at the yard

control cubicle.

6) SUPERVISORY FUNCTION: DATA ACQUISITION, PROCESSING

MONITORING, ANALYSIS AND DIAGNOSTICS.

The status of each switchgear, e.g., circuit breaker, isolator, transformer tap changer

etc., shall be continuously acquired through polling sequences. ie.,

- Polling on request

- Automatic Polling (Every 5sec, 10sec,….)

- Polling by exception (change of digital status)

Every detected change of position shall be immediately visible on the screen in the

single-line diagram, recorded in the event list, Alarms shall be initiated in cases when

spontaneous position changes have taken place. Each position of an apparatus shall be indicated by two binary auxiliary switches

which are opposite each other in normally closed (NC) and normally opened (NO)

position. An alarm shall be initiated if these position indication indicate an excessive

running time of the operating mechanism to change position through watchdog

timers.

7) DATA ACQUISITION, PROCESSING AND MONITORING:

Conventional interlock through hardware wiring is to be provided in addition to the

software interlock. The BCU shall be located in the relay panel itself. The main and

redundant station HMI should be located in the operator table. The distance

between the BCU and the HMI will vary according to site conditions during execution.

Bay control shall be provided to each bay and the number of bays to be provided in

each substation as per SLD is furnished in the bill of materials.

The SA system shall acquire data (analog and digital inputs) from (1) Numerical

relays, Electronic Energy meters (to be made available in all the feeders,

transformers both HV & LV sides) (2) OLTC, Battery charger etc.,. Data for the

system shall be acquired as hard wired input for all station equipments stated in the

single line diagram.

Automatic Disturbance File Transfer

All recorded data from the IEDs with integrated disturbance recorder systems

shall be automatically uploaded to a station HMI database. All the analog values


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shall in the disturbance records shall be displayed in primary values. A dedicated

computer as relay engineer’s console (EWS) shall be offered for analysis of

records additionally.

DATA REQUIRED:

KW, KVA, V,I, PF, kWh, kVah and kVarh from electronic energy meters (four

quadrant type) , bus voltage and frequency for the relevant 230 kV and 110 kV

system shall be measured and communicated on Modbus or standard IEC protocol to

SAS and values shall be obtained and displayed in both HMIs.

Provision shall also be available for extracting these measurements from the relays

and BCUs in addition to following protection function data (not exhaustive).

a. For each 230kV feeders

Main I distance relay tripping

Main II distance relay tripping

LBB relay actuation

Dc fail for source 1 & 2

Fuse failure

Auto reclose

Carrier send

Carrier receive

Fault reports including zone, phase, Fault I,V & Location in k.m b. For each 110kV feeders

Main distance relay tripping

LBB relay actuation

Dc fail for source 1 & 2

Fuse failure

Fault reports including zone ,phase, Fault I,V & Location in k.m c. For each transformer separately

Differential relay tripping

Over current relay for HV tripping

Over current relay for LV tripping

Master relays(1 & 2 separately)

LBB relay actuation

DC fail for source 1 & 2

Buchholz relay alarm

Buchholz relay trip indication

Oil/winding temperature alarm

PRD acted

Fault I& V d. For each breaker

Status ON/OFF

Air/gas pressure low

Air/gas pressure lockout

Pole discrepancy actuation


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TSR (common for all trip coil per circuit breaker)

e. Isolator ON/OFF

f. earth switch On/Off

g. Others

Bus bar protection actuation for 230 kV and 110 kV buses. CT circuit supervision for

above bus bar protection(common for each voltage). In case the bus bar protection

relays provided with communication port the zone operation and CT supervision

function shall be acquired on the communication interface or DI.

The measured values shall be displayed locally, on the HMI, Threshold limit values

shall be selectable for alarm actuation.

Basic monitoring functions are:

Switchgear status indication

Measurements (U, P, Q, F)

Event list

Alarm list

Status and display of DC system

Status of display of fire protection system

Acquisition of alarm and fault record from protection relays

Disturbance records

Trend curves

All necessary Indication, alarms, analog values etc apart from the above mentioned items for

the complete substation shall be provided.

8) DATA EXCHANGE TO REMOTE CONTROL CENTRE

All data, records etc as available from all the SAS devices including protection relays and

meters shall be exchanged with Remote control centre through the gateway equipment

with out the aid of Station HMI servers. The gate way equipment shall be equipped with

sufficient memory for data, records etc and shall support IEC 61850 protocol towards

the SAS and IEC 60870 – 5 – 101/104 towards the remote control centre.

9) REPORT GENERATION:

Substation Automation System shall record all activities, switching, changes etc.,

made in a substation.

Following shall be Automatically monitored:

-Status

-Events, alarms

-Limit values.

Following printouts shall be available from the printer and shall be printed on

demand:

i. Hourly voltage and frequency curves.

ii. Trend curves for MW & MVAR.

iii. Printouts of the maximum and minimum.

iv. Printout on demand for MW, MVAR, Current, Voltage on

each feeder and transformer tap position, status of pumps


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and fans for transformer.

v. Printout on demand system frequency and average

frequency.

vi. Daily, weekly and monthly reports are required. The SA

system shall be capable of delivering the same.

10) BAY CONTROL UNIT

Communication Port : Ethernet port with support for IEC 61850 protocol, SNTP.

Binary Inputs : Sufficient for application plus spare opto-isolated inputs

(Spare binary inputs shall be minimum 4 nos or 20% of application quantity whichever is

higher). Binary Outputs : Sufficient for application plus spare potential free outputs

(Spare binary outputs shall be minimum 4 nos or 20% of application quantity whichever is

higher).

For BCU used for common alarms for the substation : The BCU shall be equipped with I/O

modules sufficient for the application plus spare points of Binary input : 16 Nos, Binary

Output : 8 Nos, DC Analog input : 8 Nos. All necessary station alarms including but not

limited to GIS alarms, Fire alarm system, Inverter, online transformer diagnostic monitoring

system shall be wired to SAS and made available in the SAS HMI.

All binary inputs, binary outputs and LEDs of BCU must be user programmable, BCU without

this facility will not be acceptable.The IEDs should be directly connected to the switchgear

without any need for additional interposition of transducers. The bay control units shall be

equipped with I/O modules inherently in the unit without external I/O modules for

interfacing with the process inputs and outputs, However, all the commands extending for

control of switchgears (Breakers, isolators) shall be routed through suitable interposing

relays with a scheme to automatically check the healthiness of these interposing relays. The

Bay control IED should be provided with sufficient number of programmable LED’s. Each bay control IED shall be independent from each other and its functioning shall not be

affected by any fault occurring in any of the other bay control units of the station. “The bay

control unit shall be fed from redundant DC power supplies, this may implemented with

redundant power supply modules in the BCU or with automatic DC source selection with a

suitable auxiliary relay.”

Functions for BCU:

Control mode selection

Select-before-execute principle

Command supervision:

Interlocking and blocking

Double command

Synchro check, voltage selection

Run Time Command cancellation

Operation counters for circuit breakers and pumps

Hydraulic pump/ Air compressor runtime supervision

Operating pressure supervision through digital contacts only


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Breaker position indication per phase

Alarm annunciation

Measurement and display of Vrms, Irms ,HZ ,W, Var for each phase and for 3phase

Local HMI (local guided, emergency mode) with Graphic display for real time display of the

bay status, measurands etc.

The single line diagram in the display of the BCU shall be user configurable at site.

Interface to the station HMI.

Data storage for at least 200 events

Capability to implement bay level interlocks

The update rate for measurement and display of digital inputs , analog inputs and the

control command execution scheme shall be of satisfactory performance as applied for sub-

station applications.

Wherever there is a redundant LAN architecture is specified for SAS, each BCU shall be

preferably equipped with two separate Ethernet ports for connection to redundant LANs

preferably with separate IP addresses.

Synchronism and energizing check The synchronism and energizing check functions shall feature:

Settable voltage, phase angle, and frequency difference. Energizing for dead line - live bus, live line - dead bus or

dead line– dead bus with no synchro-check function. Synchronising between live line and live bus with synchro-check function.

Each bay control IED shall be independent from each other and its functioning shall not be

affected by any fault occurring in any of the other bay control units of the station. “The bay

control unit shall be fed from redundant DC power supplies which may implemented with

redundant power supply modules in the BCU or with automatic DC source selection with a

suitable auxiliary relay.” The GUI display in the BCU shall display the status of the bay

devices (breakers, isolators, switches etc) in real time along with the related measurands.

All alarms related to the respective bay shall be displayed in the BCU through its LED’s or in

its GUI display as an alarm list/scroll. The BCU shall conform to the specification stipulated under General requirements for

Numeric type protection relays in this tender specification. The BCU should be compatible to

interoperate and integrate with the IEC 61850 based SAS in TANTRASNCO sub-stations.

11) TIME SYNCHRONISATION

The Time synchronization equipment shall receive the co-ordinate Universal Time (UTC)

transmitted through Geo Positioning Satellite System (GPS) and synchronize equipments to

the Indian Standard Time in substation. The time synchronization of all the relevant SAS

equipments shall be realized using the SNTP protocol through the SAS LAN. A time accuracy

of 1ms shall be achieved for all the devices within SAS.

Time synchronization equipment shall include antenna & its mounting facility, all special

cables and processing equipment etc.

The GPS antenna shall have adequate protection from wind, lightning etc. and shall be

mounted anywhere in the Substation roof at a place preferable by the TANTRANSCO

It shall be compatible for synchronization of all the SAS equipments through the SAS

LAN Event Loggers, Disturbance recorders and SCADA at a substation through Ethernet


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realized through optic fiber bus.

The synchronization equipment shall have 2 micro second accuracy. Equipment shall give

real time corresponding to IST (taking into consideration all factors like voltage and

temperature variations, propagation and processing delays etc.)

Equipment shall meet the requirement of IEC 60255 for storage and operation. The system

shall be able to track the satellites to ensure no interruption of synchronization signal. The

output signal from each port shall be programmable at site for either one hour, half hour,

minute or second pulse, as per requirement. The equipment shall have a periodic time

correction facility of one-second periodicity. Equipment shall have real time digital display in

hour, minute, second (24 hour mode) and have a separate time display unit (100 mm display

high) at a suitable height in the control room.

The time synchronsiation equipment should also be equipped to provide time synrchonisation

through IRIG-B modulated port also in order to time synchronise atleast 10 more future

equipments that require accurate time synchronisation.

Apart from the communication port for NTP,SNTP time source, the unit should also be

equipped with the following ports for accurate time synchronisation facility.

- IRIG-B (Modulated) in BNC port and RS-485 Serial port to time synch additional 20 devices

- PPS Fibre optic port to time synch additional 20 devices.

12) HMI FUNCTIONS:

PRESENTATION AND DIALOGUES GENERAL

The Local HMI for Operation & Engineers console shall provide basic functions for

supervision and control of the substation. The operator shall give commands to the

switchgear on the screen via mouse clicks or soft-keys through keyboard. The HMI shall

provide the operator with access to alarm and events displayed on the screen. Besides

these lists on the screen, there shall be a print out of hard copies of alarm or events.

Following standard display shall be available from the HMI:

* Single line diagram showing the switchgear status and measured vales.

* Control dialogues.

* Measured values

* Alarms list.

* Events list.

* System status.

* A/R selection

* PT selection/ CT selection (one and half breaker scheme)

* Carrier status

* Tripping selection

13) SYSTEM SUPERVISION DISPLAY:

The SA system shall be comprehensively self-monitored and faults will be

immediately indicated to the operator before they develop into serious situation.

Such faults are recorded as faults in a system supervision display. The display shall

cover the status of the entire substation including all switchgear, Numerical relays

and communication links. Dynamic colouring of single line diagram with load, power

factor voltage. Bay view to zoom all the parameter.

All interlock status information for control circuits pertaining to the CB, Isolator, earth


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switch should be displayed in the SAS. Where ever interlock is not satisfied that

should be highlighted in separate colour for operator alert.

14) EVENT LIST

The event list shall contain events with time tag (universal time synchronization with GPS), which are important for the control and monitoring of the substation. The date and time has to be displayed for events. The events shall be registered in a chronological events list in which the type of event and its time of occurrence are indicated. It shall be possible to store all event in the HMI. The information shall be obtainable also from printed event log.

15) ALARM LIST:

Fault and error occurring in the substation shall be listed in an alarm list and shall be

immediately transmitted to the control centre. The alarm list shall substitute a

conventional alarm table, and shall constitute an evaluation of all station alarm

however alarm and visual must be provided on receiving alarm. It shall contain

unacknowledged alarms and persisting faults. Date and time of occurrence shall be

indicated. Historical data sizing for storing Data for 35 days shall be available in the

SA system. The capacity of the server is to be designed accordingly. Also necessary

hardware and software to copy and store data from server should be provided. The

data collected shall not be lost due to overflow. Whenever overflow is likely to occur,

the date shall be archived into storage media like CD so that there is no change of

losing historical data.

16) RIGHTS:

Local HMI: Shall be able to get data from all the equipments for monitoring and

control.

Engineering/DR work station: shall have the facility for relay setting and analysis of

faults by acquiring disturbance recorder data from Numerical relays.

The alarm list consists of a summary display of the present alarm situation. Each

alarm shall be reported on one line that contain.

The alarm date and time.

The name of device in alarming state.

A descriptive text.

The acknowledgement state.

The operator shall be able to acknowledge alarms, which shall be either audible or

only displayed on the monitor. Acknowledged alarms shall be marked at the list.

Filters for selection of a certain type or group of alarm shall be available as for

events.

17) SYSTEM TESTING:

The supplier shall submit a test specification for factory acceptance test (FAT) and

commissioning tests of the station automation system for approval. If the complete

system consists of parts from various suppliers or some parts are already installed on

the site, the FAT shall be sub-system tests. In such a case, the complete system test

shall be performed on site together with the site acceptance test (SAT).


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18) EXTENDABILITY IN FUTURE:

Offered substation automation system shall be suitable for extension in future for

additional bays. During such requirement, all the drawings and configurations,

alarm/event list etc. displayed shall be designed in the such a manner that its

extension shall be easily performed by the Engineers authorized. During such event,

normal operation of the existing substation shall be unaffected and system shall not

require a complete shutdown.

The SAS servers and the Engineering workstations, gateway devices shall be

equipped with all necessary hardware and original softwares to accommodate the

future electrical bays without additional cost to TANTRANSCO and without the need

for additional licenses from original equipment manufacturer.

19) RELIABLITY AND AVAILABLITY:

The bidder shall select & design & supply the SAS for the overall availability of

99.98% with the following understanding.

The SA system shall be designed to satisfy the very high demands for reliability and

availability concerning.

a. Solid mechanical and electrical design

b. Security against electrical interference (EMI).

c. High quality components and TAN TRANSCOs.

d. Modular, well-tested hardware.

e. Thoroughly developed and tested modular software.

f. Easy-to-understand programming language for application programming.

g. Detailed graphical documentation and application software.

h. Built-in supervision and diagnostic function.

i. Panel design appropriate to the harsh electrical environment and ambient

conditions.

j. Panel grounding immune against transient ground potential rise.

The entire SAS shall be provided with comprehensive cyber security including intrusion

protection and protection against virus attacks preferably integrated in the Ethernet

switches, routers, IEDs etc. The cyber security shall provide protection against unauthorized

access to the equipment and unauthorized transfer, modification or destruction of data

whether deliberate or accidental. The SAS vendor shall propose how the SAS solution

provides the cyber security. In this context all the necessary hardware and softwares is

included in the scope of the SAS.

20) DOCUMENTATION:

The following documentation to be provided for the system in the course of the

project shall be consistent, CAD supported, and of similar look/feel:

a. List of Drawings.

b. Substation automation system architecture.

c. Block Diagram.


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d. Guaranteed technical parameters,

e. List of Signal-Analogue/Digital.

f. Schematic diagrams.

g. List of Apparatus.

h. List of Labels.

i. Logic Diagram.

j. Test schedule and reports of FAT/SAT

k. Product Manuals’

l. Operator’s Manual.

m. Listing of software and loadable in CD ROM.

3 sets of CD ROM containing all the as built documents/drawing shall be provided.

Also the final documentation shall provide:

- The System specification description (SSD) file that outlines this

substation automation project.

- IED capability description file (ICD) that describes the available functions logical

nodes and services available from IED.

- Substation capability description file (SCD) that describes the relationship among

the IEDs in the substation automation system and their information exchange

structure.

- Configured IED description file (CID) that is final file to download into IED to enable

its configuration.

21) HMI SERVER’s:

The HMI server functionality and operator work station facilities may be integrated in

the station HMI (Main) as well as in the redundant station HMI.

* Each server shall be equipped with at least one (1) CD/DVD RW drive to allow

transfer of data and other software from the Hard Disk(s) to removable CD/DVD media.

All computers including HMI servers, Work stations etc shall be provided with

comprehensive anti-virus protection and cyber protection as appropriate.

Type Industrial grade substation-hardened computer hardware

equipment suitable to be rack mount in a IP 41 compliant cabinet

housing 19” rack frames.

Includes all necessary software and hardware for the

application. KVM extender with Full size Keyboard with 10key

numeric keypad, Mouse ,Monitor. DVD +/- RW read write facility.

Communication ports : 3XUSB, Dual 1000Mbps LAN ports, Plus

ports for other user interface.


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Cabinet for

Server

IP41 compliant standalone cabinet with outer protective glass door.

Equipped with all necessary accessories.

Processor Latest generation intel processor ,3 GHz or Higher

Bus side speed 1000MHZ or higher

Softwares Windows 8.1 professional or advanced version. 32 bit or higher.

With antivirus software package (with license as per project

guarantee period). All necessary softwares for the application.

HDD 2 nos HDD 500 GB in redundant RAID-2 configuration

(In case 500 GB is not sufficient for application including data then

higher capacity shall be provided for each HDD. The HDDs should

be configured such that mirror image of the data is available in the

other HDD.

RAM Expandable RAM equipped for 4GB or 200% application

requirement whichever is higher.

DISPLAY

MONITOR

29” LED monitor Flicker free, high resolution of reputed make.

Flicker free (TUV Certified), Anti glare, IPS Panel, Full HD

Resolution (1920x1080) with HDMI port and conventional port

interface for computer interface. Min height : 15.5”.

Note : The above configuration is minimum requirement, however a higher

configuration is required for the application then the server shall be provided

accordingly.

The redundant station HMI server shall operate in hot standby mode and vice versa in

case of a switch over. The real time data base of the main and redundant HMI servers

shall be synchronized at all times without loss of real time data in case of a switchover.

Also one remote client facility for Station HMI access with relevant original licenses and

software shall be provided. Each of the server shall be equipped with two Ethernet

ports for interface to SAS LANs and for for time synchronization using SNTP protocol

with guaranteed resolution of 1ms.

22) Engineering Work station

Type Industrial grade substation-hardened computer hardware equipment.

Includes all necessary software and hardware for the application. Full size Keyboard with 10 key numeric keypad, Mouse, Monitor, DVD +/- RW read write facility. Communication ports : 3xUSB, Dual 1000Mbps LAN ports, Plus ports for other user interface.


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Software Windows 8.1 professional or advanced version. 32 bit or higher. With .

MS Office suite, antivirus software package (with license as per

project guarantee period).

All necessary softwares for the application.

HMI Client access software. All softwares for configuration of

numerical relays, IEDs, BCUs etc.

DR Software for View and analysis of COMTRADE files.

HDD 2 nos HDD 500 GB in redundant RAID-2 configuration


higher capacity shall be provided for each HDD. The HDDs should be

configured such that mirror image of the data is available in the other

HDD.

RAM

Expandable RAM equipped for 4GB or 200% application requirement

whichever is higher.

DISPLAY

MONITOR

29” LED monitor Flicker free, high resolution of reputed make. Flicker

free (TUV Certified), Anti glare, IPS Panel, Full HD Resolution

(1920x1080) with HDMI port and conventional port interface for

computer interface. Min height : 15.5”.



accordingly.

The engineering work station should be equipped for :

- Data retrieval and analysis of recorded data from SAS devices including

disturbance records, fault records, event records etc

- Remote configuration of SAS IED’s, Numerical protection relays, Digital Energy

meters etc. All relevant software tools is to be provided for this purpose.

- Client access facility to station HMI with all the relevant softwares.

The engineering works station shall be provided with a simple Network Management

System (NMS) software for following management functions of Ethernet switches,

SAS devices supporting SNMP.

a. Configuration Management

b. Fault Management

c. Performance Monitoring


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This system shall be used for management of communication devices and other IEDs

in the system. This NMS shall be easy to use, user friendly and menu based.

The Engineering work station shall be provided with comprehensive anti-virus protection

and cyber protection as appropriate.

Each workstation shall be equipped with at least one (1) CD/DVD RW drive to allow

transfer of data and other software from the Hard Disk(s) to removable CD/DVD media.

23) Metering PC

All relevant original software and tools for viewing in real time and generating reports

relevant to metering data. The metering data from the meters shall be integrated in to

the station HMI servers in real time through the SAS LAN and the same shall be

available from the HMI server to the metering PC as a client. All HMI servers shall be

provided with comprehensive anti-virus protection and cyber protection as appropriate.

Type Industrial grade substation-hardened computer hardware

equipment

Includes all necessary software and hardware for the application. Full size Keyboard with 10key numeric keypad, Mouse ,Monitor. DVD +/- RW read write facility. Communication ports : 3xUSB, Dual 1000Mbps LAN ports, Plus ports for other user interface.

Cabinet for

Server

IP41 compliant standalone cabinet with outer protective glass door.

Equipped with all necessary accessories.



Software 1.Windows OS 8.1 professional or advanced version. 32 bit or higher. 2.Antivirus software package (with license as per project guarantee period) 3. MS Office suite. 4.Base communication software for ABT meter configuration and automated data retrieval from ABT meters using DLMS protocol.

HDD 2 nos HDD 500 GB SATA.


higher capacity shall be provided for each HDD.)

RAM Expandable RAM equipped for 4GB or 200% application


DISPLAY MONITOR

27” LED monitor Flicker free, high resolution of reputed

make. Flicker free (TUV Certified), Anti glare, IPS Panel,

Full HD Resolution (1920x1080) with HDMI port and


84

conventional port interface for computer interface. Min

height : 15.5”.



accordingly.

All relevant original software and tools for viewing in real time and generating reports

relevant to metering data.

Metering reports should be customized as per TANTRANSCO’s requirements.

The metering data from the meters shall also be integrated in to the station HMI

servers in real time through the SAS LAN. The metering PC should be provided with

comprehensive anti-virus protection and cyber protection as appropriate.

24) COMMUNICATION NETWORK:

The station LAN’s shall be separate from the bay level LAN’s.

All the LANs (Level-1, level-2 stipulated in IEC 61850 standard) for SAS shall support

the following features:

* The entire SAS shall be provided with comprehensive cyber security including

intrusion protection and protection against virus attacks preferably integrated in the

Ethernet switches, routers, IEDs etc. The cyber security shall provide protection

against unauthorized access to the equipment and unauthorized transfer,

modification or destruction of data whether deliberate or accidental. The SAS vendor

shall propose how the SAS solution provides the cyber security.

* 802.1Q VLAN facility.

* Traffic segregation and prioritization control via IEEE 802.1p and IEEE 802.1Q

* Support SNMP preferably the latest version to provide secure and full network

management.

* Port Security through disabling of packets from unauthorized MAC addresses.

* RMON for monitoring of network status & statistics.

* IGMP Snooping enabling reductions in multicast traffic.

* SNTP for synchronizingtheinternal clock of all the devices connected to the LAN.

* RSTP (802.1w) industry standard method for providing recovery of redundant

networks

* RMON for monitoring of network status & statistics

* Port Mirroring assisting network trouble shooting.

* Event Logs creating a historical record of events occurring on the network.

* Port Security through disabling of packets from unauthorized MAC addresses.

* SSLWeb encryption preventing eavesdropping, tampering or message forgery.

25) CAPACITY:

The system should be capable of handling upto 150 IEDs and 10,000 data points. In

case the application considering with future bays necessitates to support higher number of

devices and data points then the system shall be equipped accordingly.


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26) SEQUENCE OF EVENTS (SOE) FEATURE:

To analyze the chronology or sequence of events occurring in the power system, time

tagging of data is required which should be achieved through SOE feature of SA. The server

should have an internal clock with adequate stability. The Server time should be set from

time synchronization messages received from GPS equipment to be supplied by bidder. The

Server should maintain a clock and should time-stamp the digital status data. Any digital

status input data point in the Server should be assignable as an SOE point. Each time a SOE

status indication point changes the state, the Server should time-tag the change and store in

SOE buffer within it. SOE shall be transferable to the Remote Control Centre through the

IEC 60870-5-101 gateway. The time resolution for SOE should be 1 ms at point of

acquisition.

27) ETHERNET SWITCHES:

The Ethernet switches used for creating the LAN network should meet the specification as

laid down in the IEC 61850 standard and should be of managed type SNMP based. The

Ethernet switches should comply to IEC 61850-3 standard/equivalent for EMI Immunity and

environmental compliance pertaining with Electrical utility substations applications.

* The Ethernet switches shall be equipped with 50% spare ports.

* Separate Ethernet switches for 230kv Bays shall be separate from that for 110 kV bays.

* Ethernet switches shall support the features stipulated under general specification for the

LAN.

* Digital Diagnostic Monitoring (DDM) for Fiber :

Ethernet switches shall be equipped with the functionality to monitor ST/SC (as well as SFP) connectors, and NMS via SNMP trap when abnormalities are detected, allowing operators to initiate maintenance procedures, Further the complete LAN system shall allow system operators to monitor things like transmission and reception power, temperature, and voltage/current along optical fiber connections in real time.

28) GATEWAY EQUIPMENT

The Gateway equipment shall conform to the following technical requirements:

- The gateway equipment shall be based on embedded technology without moving

parts.

- The gateway equipment shall comply to IEC 60255 standards / Equivalent

IS for EMC and Environmental compliances.

- Support IEC 61850 protocol, IEC 60870-5-101/104 protocol.

- Perform the data concentration by directly collecting data from the bay level

devices and provide the same to the remote LDC/Master with out the aid of the SAS

HMI servers.

- The gateway device should be equipped with sufficient memories for firmware,

Configuration data, Process data, records.

- Equipped with redundant communication ports for SAS interfaces as well

as for remote LDC/Master interfaces.

- Equipped to run high speed programmable logic control function that

includes provision for implementing station level interlocks and automation logic as

necessary.


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- Necessary software with original license for Anti-virus protection with

Relevant firewall should be provided for operating system based on MS

windows.

- The gateway equipment shall be rack mount housed in a IP31 compliant

cabinet with protective glass door. Cabinet design shall ensure to be

equipped with the standard accessories specified for relay cabinets.

- Gateway shall be equipped with redundant power supply modules and

communication modules.

If gateway device is specified in redundant configuration in the SAS BOM then

2 nos gateway devices with one of which operating in online and the other operating in

hot standby by shall be provided. The switchover between gateway devices shall be

Automatic, quick enough for the application, bump less without loss of SAS data during

switchover, the databases of the online and hot stand by shall be synchronized in realtime. It

shall be possible to operate with one gateway device in case of outage or failure of one


87

Station HMI

Redundant Station HMI

Engg. WS Metering PC

Event Printer

Report Printer

Protocol converter Device

Meter

Meter

GPS SYSTEM

Redundant Gateway Devices

Communication terminal Equipment

Ethernet switch: 230kV RP - Relays -BCU

Ethernet switch: 110kV RP - Relays -BCU

CONCEPTUAL DIAGRAM FOR SAS

STATION LAN (Redundant Dual LANs) IEC 60870-5- 101/104

. . BAY LEVEL LAN (IEC 61580, DOUBLE RING TOPOLOGY)

To Station LANs

….

Redundant Communication lines Towards LDC


88

29) INVERTER :

1.The inverters shall comply with the following specification and characteristics:

TYPE Type of inverter On Line µP controlled IGBT based Static inverter

Rating @ 50 ºc of each inverter 120% of assigned load or 3 KVA whichever is higher.

Type of power switching Pulse width modulation

No. of inverters

2 nos to operate in redundant configuration with automatic switch over in case of failure of one unit.

Input Voltage 220V DC +/- 10% taken from station battery banks

Output voltage Single phase 230V AC + /-1%

Nominal frequency 50 Hz

Frequency regulation i) Free running 0.01 HZ

Total harmonic distortion of output voltage Less than 2.5% for linear load & Less than 5% for non-linear load

Single harmonic of output voltage Less than 3%

Power factor range Rated 0.8 (0.6 to Unity, within KVA & KW)

Method of cooling Forced air cooling

Assigned Load

SAS Servers, Engineering Workstation, Metering PC, LAN Equipments pertaining to Level-2, Printers Etc.

Alarm Dry contact for minor and major alarm Note: A worksheet depicting the total calculation of the assigned load should be furnished in assessing the rating of the inverter.

2.The inverters shall comply with the following characteristics:

i) The inverters shall normally operate in synchronism with the mains AC power

source. Upon loss of the mains AC power source or its frequency deviating beyond a preset

range, the inverters shall revert to their own internal frequency standard. When the mains

AC source returns to normal, the inverters shall return to synchronized operation with the

mains AC source. Such reversal of operation of inverters from synchronous to free running

mode and vice-versa shall not introduce any distortion or interruption to the connected

loads.

A suitable dead band for frequency may be provided to avoid unnecessary frequent reversal

of inverter operation between free running mode and synchronized mode under fluctuating

frequency conditions.


89

ii). For safe operation in the event of Power failure or input source voltage dropping below

preset value, necessary safeguard software shall be built in for proper shutdown and restart.

iii) The inverters shall be synchronized to the main AC source unless that

source deviates from 50 Hz by more than 1% (adjustable to "1/2/3/4/5%).

iv). The inverters shall provide interrupter switch to isolate the unit from the load on failure

of the unit. The interrupter switch shall be rated to carry full continuous load and to interrupt

the inverter under full fault load.

v). The inverters shall be capable of supporting a start-up surge or

overload of 150 % of rated output for up to 60 seconds.

vi). The transient voltage response shall not exceed "4% for the first half-

cycle recovering to 1% within ten cycles for a 100 percent step load

application or removal.

3. Control panel for auto/manual switch over of the redundant inverters shall be provided with the inverter. The scope of supply, installation, testing and commissioning of inverter also

includes all the necessary AC Distribution boards, DC Distribution boards, Control

panel to facilitate manual change over, auto change over and bypass mode with

meters for monitoring the voltages.

4. Type tests for inverter: The inverter shall comply to IS 13314 / Equivalent standards as applicable for the KVA required for the project This includes the following tests. 1. Visual inspection test

2. High voltage test

3. Insulation resistance test

4. No-load test

5. Output test

6. Climatic tests

7. Harmonic contents test

8. Radio frequency interference test for conducted emission in the AC output circuit.


90

30. Laptop computer for SAS tool

Type Reputed make laptop computer


Software 1.Windows 8.1 professional or advanced version. 32 bit or higher.

2. Antivirus software package validity for entire project guarantee

period.

3. HMI software for client access to SAS HMI.

4. MS office suite latest version.

5.All other necessary software for configuration of SAS devices,

Relay panels devices.

HDD 2 nos HDD 500 GB


higher capacity shall be provided for each HDD. )

RAM

Expandable RAM equipped for 4GB or 200% application


DISPLAY 15” LED monitor HD resolution, Anti glare.

Optical

drive

DVD +/-RW

Keyboard &

MOUSE

Full size Spill resistant keyboard with 10key numeric keypad,

Optical mouse.

Connectivity Wifi, Bluetooth, USB port-3nos, RJ45 10/100Mbs Ethernet

port.

31. FURNITURE FOR SAS All materials used for furniture should be industrial grade with design life of minimum 15

years. All wood based materials should be moisture proof, termite proof. All metal used

should be corrosion resistant, pretreated to withstand corrosive atmosphere, heavy duty

sturdy material. All workstation tables shall be provided with Keyboard tray.


91

SECTION-VI D BILL OF MATERIALS FOR PROTECTION RELAY PANELS

Note :

1.The bill of materials for relay panels in this section is for conceptual information, however any other necessary component and devices required in the relay panels to fulfill the protection, control and metering scheme is inclusive of the scope of supply of the respective panels without additional cost to TANTRANSCO. 2. The Bus bar protection panel shall be equipped completely to accommodate all the Bays including future Bays depicted in the single line diagram of the substations plus 3 spare bays. 3. The under frequency scheme for feeders shall be equipped completely to accommodate all the feeders including future feeders depicted in the single line diagram of the substations plus 3 spare feeders. 4. DC supervision relay should be provided for each of DC sources and at the DC output of the DC selection relay. The DC fail alarm should be made available to the SAS. 5. If Functions of supervision relays, trip relays, selector switches, auxiliary relays are incorporated in a multifunction IED then it is subject to design approval from TAN TRANSCO. Such scheme should be designed such that a single point of failure in the multifunction IED should not cause failure of simultaneous failures of Main-I/Main and main-II/Backup protection scheme 6.VT selection for 230KV Relay panes: VT selector switch for selection between Line VT/ Bus VT-1/ Bus VT2 shall be provided. However the scheme shall be provided with logic to ascertain the Bus section breaker close status to extend the non-native Bus VT. Separate core shall be wired for Main-1 protection, Main-2 protection and metering devices. 7. VT selection for 110KV Relay panes: VT selector switch for selection between Bus VT-1/ Bus VT2 shall be provided. However the scheme shall be provided with logic to ascertain the Bus section breaker close status to extend the non-native Bus VT. Separate core shall be wired for Main protection, Backup protection and metering devices. 8. In case TANTRANSCO orders additional Control & relay panels for 110kV bays and 230kV bays, then the control & relay panel should be provided with necessary materials such as Ethernet switch, Line interface unit with fibre optic cables etc. for inter bay LAN interface.


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I. BOM : C&R PANEL FOR 230 kV FEEDER 1.Numerical distance protection relay for Main-1 protection as per Specification. 1 No

2. Numerical distance protection relay for Main-2 protection as per Specification 1 No

3. Bay control unit 1 No

4. Electronic Trivector meter 1 No.

5. Single phase trip relay (with self-reset contacts) 6 Nos.

6. Trip circuit supervision relay 6 Nos.

7. DC supply supervision relay As required.

8. Selector switch for L/R selection 1 No 9. Three phase Master Trip relay (H&ER reset contacts, Hand reset flags) 2 Nos.

10. P.T. selection scheme with bistable relays 1 Set

(includes 3 position (Bus VT1-Line VT-Bus VT2) PT Selector switch)

11. Bus bar Tripping relay (96) 1 No

12. Trip transfer switch 1 Set

(3 Postion: Normal-Auto-Transfer, Lockable type with removable key,

sufficient ways. This item applicable if transfer breaker is available)

13. TNC Switch 1 No.

14. Supervision relays for tripping and lockout relays As required

15. Selector switch for A/R (2Positiion :ON/OFF ) 2 Nos.

16. Selector switch (Carrier IN/OUT, 2Position, 4 Ways, Stay put) 2 Nos.

17. Auxiliary relays and timers to fullfill protection scheme -As required

18. Auxiliary relay for Automatic DC source selection As required

19. LBB Isolation links As required

20. Standard relay panel accessories as stipulated in this specification - As required

Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to design approval from TAN TRANSCO. Such scheme should be designed such that a single point of failure in the multifunction IED should not cause simultaneous failures of Main-I and main-II protection scheme. The IED should conform to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules. 2. Main-1 and Main-2 distance protection relays should be of different manufacturer.


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II. BOM : C&R PANEL FOR 230 kV FEEDER WITH UF RELAY 1. Numerical distance protection relay for Main-1 protection as per Specification 1 No.

2. Numerical distance protection relay for Main-2 protection as per Specification. 1 No



5. Single phase trip relay (with self-reset contacts) 6 Nos.

6. Trip circuit supervision relay 6 Nos.

7. DC supply supervision relay As required.

8. Selector switch for L/R selection 1 No

9.Three phase Master Trip relay (H&ER reset contacts, Hand reset flags) 2 Nos.




13. Selector switch for A/R (3Positiion : M1/OFF/M2 ) 1 No.

14. Selector switch (Carrier IN/OUT, 2Position, 4 Ways, Stay put) 2 Nos.

15. Indicating lamp for carrier healthy common to both Main I & II 2 Nos.

16. TNC Switch 1 No.

17.Auxiliary relays and timers to fulfill protection scheme - As required

18. Trip transfer switch (3 Position, Lockable type with removable key, 1 Set sufficient ways.)/ Auxiliary relay to implement trip transfer scheme. (This item applicable if transfer breaker is available)

19. Auxiliary relay for contact multiplication of trip transfer switch 1 No

20. Auxiliary relay for Automatic DC source selection 1 No

21. Numerical under frequency protection relay as per specification 1 No.

22. 3-phase Master Trip relay for f+df/dt scheme: As required+3 nos. (Hand & Electrical reset contacts, Hand reset flags. 1 no per feeder plus 3nos spare for future feeders) 23. 3-phase Master Trip relay for (81RF) under frequency scheme : As required+3 nos. (Hand & Electrical reset contacts, Hand reset flags. 1 no per feeder plus 3nos spare for future feeders) 24. Isolation link for each feeder for under frequency scheme: As required

25. LBB Isolation link As required

26. Standard relay panel accessories as stipulated in this specification- As required

Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to design approval from TAN TRANSCO. Such scheme should be designed such that a single point of failure in the multifunction IED should not cause simultaneous failures of Main-I and main-II protection scheme. The IED should conform to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules.


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2. Main-1 and Main-2 protection relays should be of different manufacturer. III.BOM : C&R PANEL FOR 230 kV/110 AUTO TRANSFORMER / 230KV/33KV POWER TRANSFORMER 1. Electronic Trivector meter 2Nos.

2.Numerical biased differential protection for three winding Transformer 1 No

with REF,LBB, over fluxing and synchro check Features

3. Numerical non-directional over current protection relay with

LBB and high set for HV side 1 No

4. Numerical non-direction over current protection relay with

LBB and high set for LV side 1 No

5. Bay control units for HV and LV 2 Nos

6. TNC Control switch spring return type with pistol grip handle for Breaker 2 Nos

7. Three Phase trip relay (H&ER reset contacts, Hand reset flags) 2 Nos

8. Trip transfer switch (3 Postion, Lockable type with removable key 1 Set sufficient ways.)/ Auxiliary relay to implement trip transfer scheme. (This item applicable if transfer breaker is available)

8. Trip circuit supervision relay for HV and LV trip coils As required (pre close and post close) 9. D.C. supply supervision relay 3 Nos

10. Five element high burden hand reset with flag indication relay for breaker 2 Nos Annunciation with a minimum of 4 set of N/O contacts ( for HV and LV )


12. Auxiliary relay for transformer alarms and trip As required (Typically : Buchholz alarm-3 Element, Oil flow alarm-3, WTI-3 Element, OTI-3 Element, Oil level alarm-3 Element, PRV Trip-3 Element, Buchholz trip-3 Element, OLTC Low oil Level- 3Element ) 13. Auxiliary relay for circuit breaker alarms/trip As required (Typically :Loss of SF6, PD Trip, General Lockout, SF6 Lockout, 81X) 14.Auxiliary relays and timers to fulfill scheme As required

15. P.T. selection scheme with bistable relays ( for HV and LV ) 2 Sets.

16. High Speed tripping relay (96) for B/B protection 2 Nos

17. LBB isolation link As required. 18. Standard relay panel accessories as stipulated in this specification - As required 19. Selector switch for L/R selection 2 Nos 20. Relay for Automatic DC selection 1 no. 21. Transducer for Tap position indication 1 no. (30-250VDC auxiliary supply, IEC 60688 compliant, Output 4-20mA) Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to design approval from TAN TRANSCO. Such scheme should be designed such that a single point of failure in the IED should not cause failure of the protection scheme. The IED should conform to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules.


95

IV. BILL OF MATERIALS FOR 230 kV / 110kv BUS BAR PROTECTION RELAY PANEL : 1) Set of low impedance bus bar protection scheme of Numerical type for 1 Set

single/double zone with check zone for 230 kV bus (as per single line

diagram enclosed plus 3 numbers spare feeders)

2) DC supervision relays 2 Nos

3) Bus bar cut IN/OUT switch Main and check zones. As required

4) Auxiliary relays for automatic DC source selection As required

5) Auxiliary relays and timers to fulfill scheme As required

6) 3 Phase trip relay (96) (shall be be a part of relay panel of the

respective panels) As required

7) Supervision relay for B/B protection As required

trip relays (shall be a part of relay panel of the respective panels)

8) Isolation links for LBB & trip isolation As required

9) Standard relay panel accessories as stipulated in this specification- As required

V. BILL OF MATERIALS FOR 230 kV BUS COUPLER RELAY PANEL /230 kV TRANSFER BREAKER RELAY PANEL / 110KV BUS TIE BREAKER RELAY PANEL / 110KV BUS SECTION BREAKER RELAY PANEL / 110KV TRANSFER BREAKER RELAY PANEL: 1) Numerical non directional over current and earth fault relay with LBB 1 No

and synchro check

2) Bay control unit 1 No

3) TNC Switch 1 No.

4) 3 Phase trip relay (H&ER reset contacts, Hand reset flags) 2 Nos

5) Trip Circuit supervision relay 2nos/6 Nos

(quantity applicable as per 1-ph or 3-ph breaker)

6) DC supervision relays 2Nos

7) Selector switch for L/R selection 1 No 8) Supervision relay for Main, Backup and B/B protection Trip relays As required


10) High Speed tripping relay (96) for B/B protection 1No

11) Digital Voltmeter (LED Display for Bus voltage) 2 Nos.

13) Digital Frequency meter (LED Display) 2 Nos.

14) Selector switch (for voltmeter & Frequency meter) 2 Nos.

15) Relay for Automatic DC source selection 1 no.


96

16) Indication lamps (for checking bus PT ) 6 Nos.

17) Selector switch for L/R selection 1 No 18) LBB isolation link 1 No.

19) Standard relay panel accessories as stipulated in this specification-As required

Note :

1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be

incorporated in a multifunction IED subject to approval of TAN TRANSCO design approval.

Such scheme should be designed such that a single point of failure in the IED should not

cause protection failure. The IED should conform to the Specification for the general

requirements for numeric relay and equipped with redundant power supply modules.

VI. BOM : C&R PANEL FOR 110 kV FEEDER

1) Electronic Trivector meter 1 No.

2) Numerical distance protection relay for Main protection as per Specification. 1 No

3) Numerical directional O/C & E/F relay with LBB for back up protection as 1 No per specification. 4) Bay control Unit 1No

5) TNC Switch 1 No.

6) Three phase trip relay (H&ER reset contacts, Hand reset flags) 2 Nos

7) Trip Circuit Supervision relay ( pre close and post close) 2nos/6 Nos (quantity applicable as per 1-ph or 3-ph breaker)

8) D.C. Supervision relay 2 Nos

9) Selector switch for L/R selection 1 No 10) Selector switch (A/R IN/OUT, 4 Way, Stayput ) 1 No.

11) Supervision relays for tripping and lockout relays As required

12) P.T. selection scheme with bistable relay 1 Set

13) Highly Speed tripping relay(96) for B/B protection 1 No

14) Remote access block switch(For numeric relay) 1 No.

15) LBB isolation link 1 No


17) Trip transfer switch (3 Postion, Lockable type with removable key, 1 Set sufficient ways.)/ Auxiliary relay to implement trip transfer scheme. (This item applicable if transfer breaker is available)

18) Standard relay panel accessories as stipulated in this specification-As required Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to approval of TAN TRANSCO design approval. Such scheme should be designed such that a single point of failure in the IED should not cause simultaneous failures of Main and backup protection scheme. The IED should conform


97

to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules.

VII. BOM : C&R PANEL FOR 110 kV FEEDER WITH UF RELAY 1) Electronic Trivector meter 1 No.

2) Numerical distance protection relay for Main protection as per Specification. 1 No

3) Numerical directional O/C & E/F relay with LBB for back up protection as 1 No

per specification.

4) Bay control Unit 1 No

5) TNC Switch 1 No.

6) Three phase trip relay (H&ER reset contacts, Hand reset flags) 2 Nos

7) Trip Circuit Supervision relay ( pre close and post close) 2nos/6 Nos

(quantity applicable as per 1-ph or 3-ph breaker)

8) D.C. Supervision relay 2 Nos

9) Selector switch for L/R selection 1 No 10) Auxiliary relays and timers to fulfill scheme As required

11) Supervision relays for tripping and lockout relays As required

12) P.T. selection scheme with bistable relay 1 Set

13) Highly Speed tripping relay(96) for B/B protection 1 No

14) Remote access block switch(For numeric relay) 1 No.

15) Numerical under frequency protection relay as per specification 1 No.

16) LBB isolation link 1 No.

17) 3-phase Master Trip relay for (81U) under frequency scheme: As required+3 nos. (Hand & Electrical reset contacts, Hand reset flags. 1 no per feeder plus 3nos spare for future feeders) 18) 3-phase Master Trip relay for f+df/dt scheme: As required+3 nos. (Hand & Electrical reset contacts, Hand reset flags. 1 no per feeder plus 3nos spare for future feeders) 19) Isolation link for each feeder for under frequency scheme: As required 20) Auxiliary relays and timers to fulfill scheme As required

21) Trip transfer switch (3 Position, Lockable type with removable key, 1 Set

sufficient ways.)/ Auxiliary relay to implement trip transfer scheme.

(This item applicable if transfer breaker is available)

22. Selector switch for L/R selection 1 No 23. Standard relay panel accessories as stipulated in this specification- As required

Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to approval of TAN TRANSCO design approval. Such scheme should be designed such that a single point of failure in the IED should not cause simultaneous failures of Main and backup protection scheme. The IED should conform


98

to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules. VIII. BOM : C&R PANEL FOR 230 kV FEEDER (with Line differential)

1.Numerical line differential relay with built in distance protection for1 No

Main-1 protection. (Distance protection as per specification)

2. Numerical line differential relay with built in distance protection for1 NoMain-2

protection. (Distance protection as per specification),



(3-phase,4W,3E,4 Quadrant, class 0.2s, with RS 485 port,110 V,1A)

5.Single phase trip relay (with self-reset contacts) 6 Nos.

6.Trip circuit supervision relay 6 Nos.

7. DC supply supervision relay 3 Nos.

8. Selector switch for L/R selection 1 No. 9.Three phase Master Trip relay (self reset contacts, Hand reset flags) 2 Nos.



13.Supervision relays for tripping and lockout relays As required

14. Selector switch (A/R IN/OUT, 4 Way,Stayput ) 1 No.

15. Selector switch (Carrier IN/OUT, 2Position, 4 Ways,Stay put) 2 Nos.

16. Indicating lamp for carrier healthy common to both Main I & II 2 Nos.

17. TNC Switch 1 No. 18.Auxiliary relays and timers to fullfill protection scheme - As required 19. Trip transfer switch 1 Set

(3 Position: Normal-Auto-Transfer, Lockable type with removable key)

20. Auxiliary relay for contact multiplication of trip transfer switch 1 No

21. Auxiliary relay for Automatic DC source selection 1 No

22. Fiber optic cables for interface between 87L relay to fiber optic patch panel As required. 23. LBB Isolation link 2 Nos 24. Master trip relay for UF scheme As required. 25.FO cable complete with connectors for interface between the Numerical 5 Sets relay (87L) Of required length. 26.Standard relay panel accessories as stipulated in this specification-As required 27. Original Software for Configuration , upload/download of files for Numerical relays, Digital meters,BCU etc.


99

Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to design approval from TAN TRANSCO. Such scheme should be designed such that a single point of failure in the multifunction IED should not cause simultaneous failures of Main-I and main-II protection scheme. The IED should conform to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules. 2. Main-1 and Main-2 Line-differential protection relays should be of same make & model.

IX. BOM : C&R PANEL FOR 110 kV Capacitor Bank

1) Electronic Trivector meter 1 No. 2) Numerical protection relay(s) for Main protection 1 set. 3) Numerical protection relay(s) for backup protection 1 set. 4) Bay control Unit 1 No 5) TNC Switch 1 No. 6) Three phase trip relay (Hand & Electrical reset for contact) 2 Nos 7) Trip Circuit Supervision relay ( pre close and post close) 2nos / 6 Nos (quantity applicable as per 1-ph or 3-ph breaker) 8) D.C. Supervision relay As required 9) Supervision relays for tripping and lockout relaysAs required 10) P.T. selection scheme with bistable relay 1 Set 11) Highly Speed tripping relay(96) for B/B protection 1 No 12) Remote access block switch(For numeric relay) 1 No. 13) LBB isolation link As required 14) Auxiliary relays and timers to fulfill protection & control scheme As required 15) Trip transfer switch (3 Postion, Lockable type with removable key, 1 Set sufficient ways.)/ Auxiliary relay to implement trip transfer scheme. (This item applicable if transfer breaker is available) 16) Standard relay panel accessories as stipulated in this specification As required Note : 1. Functions of supervision relays, trip relays, selector switches, auxiliary relays may be incorporated in a multifunction IED subject to approval of TAN TRANSCO design approval. Such scheme should be designed such that a single point of failure in the IED should not cause simultaneous failures of Main and backup protection scheme. The IED should conform to the Specification for the general requirements for numeric relay and equipped with redundant power supply modules. 2.The protection scheme shall be designed in accordance with the IEEE Guide for protection of capacitor banks ( C37.99 Latest) along with other capacitor bank manufacturer ‘s recommendations. The protection relays should be immune to the mal-effects of possible harmonics, ferro-resonance and surges. The protection shall be implemented with main and back up protection such that failure of any component /method used in the main protection shall not affect/fail the backup protection , similarly vice versa. The main and backup protection shall be preferably designed such that any type of fault shall be detected by minimum two principles. The protection shall cover the internal fault of the capacitor banks, inter phase faults within capacitor banks, inter-rack faults, variation in manufacturing tolerance of the capacitors adopted and be equipped with CT and VT supervision etc. and the breaker for capacitor bank.


100

3. The protection shall include but not limited to : - Time and instantaneous over current & E/F protection - Neutral unbalance current protection - Over voltage protection - Under voltage protection etc The detailed protection proposal may be furnished along with the drawing submittals for TANTRANSCO approval.

X. Synchronising Panel

1. Circuit Label 1 Each.

2. Voltmeter 2 Nos.

3. Frequency Meter (45-55 HZ) 2 Nos.

4. Synchroscope 1 No.

5. Synchroscope selector switch 1 No.

6. Check synchronizer IN/OUT selector switch 1 No.

7. Numerical Check synchronizing relay 1 No

8. Auxillary relays, Auxillary VTs, Gurad relay, synchronizing socket &plg : As required

9. Indication lamp for synchronising indication 1 No.

8. Panel Standard accessories As required

Note : The synchronism and energizing check functions of the relay shall feature: a. Settable voltage, phase angle, and frequency difference.

b. Energizing for dead line - live bus, live line - dead bus or dead line– dead bus with no

synchro-check function.

c. Synchronising between live line and live bus with synchro-check function.

XI. Standard relay panel accessories: All the Control & Relay panels shall have the following

1. Cubicle illumination Lamp (LED Type only) with door switch- 1 Set.

2. Space heater with thermostat and ON/OFF switch- 1 Set.

3. 5A&15A, 3-Pin socket with pin and ON/OFF switch- 1 Set.

4. Test terminal block for testing metering & protection devices- As required

5. Test block - As required

6. Cable glands As required

7. Terminal blocks As required+20% Spares

8. Wires for CT, Earthing As required (2.5 Sq.mm, Multi strand, 1100V Grade, PVC Insulated, FRLS)

9. Wires for VT, Alarms, status, Control As required

(1.5 Sq.mm, Multi strand, 600v/1100V Grade, PVC Insulated, FRLS)

10. 25*6mm Tinned copper bar As required


101

11. Cabinet 1 Each ( Free standing, self supported, with swing frame for devices and outer glass door.)

12. Labels for devices- 2 Sets (Inside and outside the panel)

13. Label for panel designation- 2 Nos

14. MCBs for AC distribution circuits, MCBs for DC distribution circuits As required (With auxiliary contact for MCB trip indication)

15.Links As required

16. DC fail test/accept button - 2 Each

17. AC bell for DC fail alarm- 1 no

18. Synchronising socket (12 Pin)- 1 No.

(Applicable when interface is with synchronising trolley)

19. Push button for reset of master trip relays and lockout relays As required.

20. Cable glands As required.

21. Line interface unit for interbay fiber optic LAN interface As required

22. Isolation links for isolation of LBB, trip outputs etc. As required

General: The following items are included under the scope of supply for relay panels and for SAS equipments

1. Manuals (hard copy & soft copy) 3 Sets.

2. As built drawings (hard copy & soft copy) 5 Sets.


102

XII. BOM FOR SAS (Applicable for each SAS)

Sl. No

Description Unit Qty

1 Industrial grade computer for station HMI (As per technical specification)

Nos.

2

2 Engineering work station (As per technical specification) No. 1

3 Metering PC (As per technical specification) No. 1

4 Gateway Panel (Complete with panel, Gateway Devices-2nos in redundant configuration, Hooter-2nos for substation urgent & non-urgent alarms)

No.

1

5 Communication equipment (Lightning arrestors for Communication ports and Media interface device etc for gateway redundant interface to LDC)

set

1

6 PLCC MODEM with 19” rack frame, 48V DC PS module, Wiring accessories. ( 1 set at SS and 1 set at Remote LDC)

Sets 2 (Applicable for SS with

PLCC communication)

7 Bay Control Unit Nos. As required. (Refer note

below.)

8 Ethernet Switches ( 50 % spare ports in each switch) to implement Redundant LANs at Station level and inter bay level

Nos. As required.

9 General printer (A3 Colour LASER Jet Printer)

No. 1

10 Report printer (A4 Colour LASER Jet Printer) No. 1

11 LAN accessories (Includes all cables and associated cable ducts, media converters etc for LAN) and all materials for establishing communication Link between the metering PC and all the ABT meters using DLMS protocol.

Lot 1

12 Time synchronization system (GPS with all accessories, Antenna, cables, software, Lightning arrestors for GPS etc)

Set

1

13 Configuration tools for SAS and Relay panels. 1.SAS HMI software for Client access. 2.Laptop computer with all necessary software-1 set. 3. CMRI Instrument (DLMS compatible for ABT meter)– 1No. 4. Software for configuration of all devices in relay panels- 1 set 5. Software for configuration of all SAS devices-1 set. 6. Special Crimping tools – 1 set 7. Test plug – 2nos 8.Any other necessary tools for SAS & relay panels.

Set

1

14 Inverter(As per technical specification) Nos. 2

15 Relevant manuals as per SA specification. Lot 1


103

16 Furniture : Chair – Industrial grade, Revolving type with wheels for mobility ,Adjustable height, Cushioned for bottom and for backrest with head rest. Reputed make.

Nos.

5

17 Furniture : Tables for SAS operator – 2Nos; Table for Engg WS & Metering PC : 2nos.

Lot

1

18 Furniture : Tables with drawers suitable for housing all the drawings & manuals of the SAS and protection system.

Lot

1

Note:

1. In respect of supply of C&R Panels with SAS for 230 kV and 110 kV level the price of the Relay panel shall be inclusive of the BCU. The BCUs/IEDs for common alarms shall be considered under supply of SAS.

2.IED(s)/ BCU(s) with graphic display of sufficient I/O capacity shall be offered for covering all the sub-station auxiliary items, RMU, Fire alarm system, complete Power supply (Charger, Battery and distribution system (DCDB,ACDB),common alarms in the sub-station. 3. Media type ( Fibre optic media ) for gateway interface to the remote load dispatch centre would be known during project execution. Includes FO patch cables between Gateway and FO distribution/Splice panel. XIII. Breakup of Bill of Quantities :

Sl.no Description of Items

Unit o

f Q

ty

Sale

m 2

30

Sin

gara

pet

230

S.P

.Koil

230

A SUPPLY ITEMS WIH SAS

1 230 kV Feeder C&R panel No. 3 6 4

2 230 kV Feeder C&R panel (with Line Diffl. protn.) No. - - 1

3 230 kV Feeder C&R panel with UF relay No. 1 1 1

4 230 kV /110 kV Auto trf C&R Panel Set

3 3 4

5 230 kV Bus section / Bus coupler/ TBC C&R Panel No. 1 2 1

6 230 kV Bus bar protection relay panel Set

1 1 1

7 110 kV Feeder C&R Panel No.

7 4 10

8 110 kV Feeder C&R Panel with UF relay No. 1 1 1

9 110 kV Bus section / Bus coupler/ TBC C&R panel No. 1 2 1


1 1 1

11 110 kV Cap.Bank C&R panel No.

2 2 2

12 230 kV Synchronising panel No.

1 1 1

13 Substation Automation System Lot 1 1 1

WORKS ITEMS

14 Installation, Testing & Commissioning of SAS per bay 1 1 1


104

TYPICAL FURNTURES DRAWINGS

OPERATOR AND METERING PC TABLE

ENGINEERING CUM DR WORK STATION


105

TABLE FOR HOUSING THE DRAWINGS AND PRINTERS


106


107


108


109

SECTION – VII – FORMATS

SCHEDULE – A : PRICE SCHEDULE

Sl. No

Description of Items

Unit o

f Q

ty

Tota

l Q

ty

PER UNIT PRICES Total all inclusive price

Ex-

work

s Price

Exc

ise D

uty

@

12.5

%

CST @

2%

/

TN

VAT @

5%

F&

I Charg

e

Per

unit A

ll in

clusi

ve F

OR (

D)

Price

A SUPPLY ITEMS WIH SAS

1 230 kV Feeder C&R panel (with Distance protn.)

No.

2 230 kV Feeder C&R panel (with Line Diffl. protn.)

No.

3 230 kV Feeder C&R panel with UF relay No.

4 230 kV /110 kV Auto trf C&R Panel Set

5 230 kV Bus section / Bus coupler/ TBC C&R Panel

No.


7 110 kV Feeder C&R Panel No.

8 110 kV Feeder C&R Panel with UF relay No.

9 110 kV Bus section / Bus coupler/ TBC C&R panel

No.


11 110 kV Cap.bank C&R panel No.

12 230 kV Synchronising panel No.

13 SAS for Salem 230 KV/ 110 KV SS Lot

14 SAS for Singarapet 230 kV/110 kV SS Lot

15 SAS for S.P.Koil 230 KV/ 110 KV SS Lot

Total of materials ( Items 1 to 15)


110

Sl. no Description of Items

Unit of Qty

Tota

l Q

ty

Per

unit E

x-

work

s Price

Serv

ice t

ax

(14%

)

Per

unit A

ll in

clusi

ve F

OR

(D)

Price

Tota

l all

incl

usi

ve p

rice

B WORKS ITEMS

14 Installation, Testing & Commissioning of SAS for Salem 230 KV/ 110 kV SS

LS 1

15 Installation, Testing & Commissioning of SAS for Singarapet 230 KV/ 110 KV SS

LS 1

16 Installation, Testing & Commissioning of SAS for S.P.Koil 230 KV/ 110 KV SS

LS 1

Total of Works ( Items 14 to 16)

C Total of materials and Works ( Items 1 to 16)

Legend:

LS : Lumpsum, SAS : Sub-station automation system, C&R : Control and relay

NOTE: 1.Destination means Stores/Site anywhere in Tamil Nadu.

2. All the prices shall be quoted in Indian rupees only.

3. In respect of supply of C&R Panels with SAS for 230 kV and 110 kV level the price

of the C&R panel shall be inclusive of the BCU. The BCU/IED for common alarms

shall be considered under supply of SAS.


111

D. OPTIONAL PRICE ITEM:

Sl.no DESCRPTION OF

WORKS

Quantity Ex-

works

Price (in

Rs)

Service tax (in Rs) Total price in

(Rs)

1 System integration of

230 kV control and

protection panel for

Feeder/ Auto

transformer with

SAS.

1 Each

2 System integration of

110 kV control and

protection panel for

Feeder with SAS.

1 Each

COMPANY SEAL

DATE SIGNATURE

DESIGNATION

COMPANY NAME


112

SCHEDULE – B SCHEDULE OF MATERIALS & WORKS WITH DELIVERY PERIOD (TO BE FILLED IN BY THE TENDERER)

Sl. No

Name of the Sub-station Delivery Schedule for supply

of all materials

Delivery Schedule

for all works

1 Salem 230 KV/ 110 KV SS

2 Singarapet 230 kV/110 kV SS

3 S.P.Koil 230 KV/ 110 KV SS

COMPANY SEAL DATE SIGNATURE DESIGNATION COMPANY NAME SCHEDULE – C-I

DEVIATION FROM TECHNICAL SPECIFICATION All technical deviations from the specification shall be filled in by the Tenderer, clause by clause, in the Schedule.

SECTION NO

CLAUSE NO DEVIATION

The tenderer herby confirms that the above mentioned are the only deviations from the Technical Specification and the tender conforms to the specification in all other respects. Even for Nil deviation, this schedule is to be duly filled in and enclosed in the offer cover. COMPANY SEAL DATE SIGNATURE DESIGNATION COMPANY NAME


113

SCHEDULE – C-II DEVIATION FROM COMMERCIAL SPECIFICATION All Commercial deviations from the specification shall be filled in by the Tenderer, clause by clause, in the Schedule.

SECTION NO

CLAUSE NO DEVIATION

The tenderer herby confirms that the above mentioned are the only deviations from the Commercial Specification and the tender conforms to the specification in all other respects. Even for Nil deviation, this schedule is to be duly filled in and enclosed in the offer cover. COMPANY SEAL DATE SIGNATURE DESIGNATION COMPANY NAME

SCHEDULE – D

STATEMENT OF SUPPLY ORDERS EXECUTED/ UNDER EXECUTION DURING THE

PAST THREE YEARS AS ON DATE OF TENDER OPENING

Sl No.

Name and address of the Organization

Description Purchase Order No. & Date

Qty Value of order in Rs. Lakhs

Schedule date of completion of Order

Actual date of Completion of Order

(1) (2) (3) (4) (5) (6) (7) (8)

COMPANY SEAL DATE SIGNATURE DESIGNATION COMPANY NAME


114

: TANTRANSCO : DECLARATION FORM

SPECIFICATION NO.P&C.XXX SCHEDULE –E

To The Chief Engineer, Protection & Communication, TAN TRANSCO Ltd, I Floor, 5-B Block, Electricity Avenue, 144, Anna Salai, Chennai – 600 002. Dear Sir, 1.Having examined the above specification together with the accompanying schedules etc., we hereby offer to supply the equipment and execute works covered in this specification at the rates entered in the attached schedule of prices. 2. We hereby guarantee the particulars entered in the schedules attached to the specification. 3. In accordance with Security Deposit cum Performance Bank Guarantee clause, Section-V of the specification we agree to furnish security to the extent of 5% of the total value of the contract. 4. Our company is not a potentially Sick Industrial Company or a Sick Industrial Company in terms of Section-23 or Section-15 of the Sick Industrial Companies (Special Provisions) Act, 1985. Yours faithfully, PLACE : SIGNATURE : DATE : DESIGNATION : COMPANY SEAL : COMPANY :


115

SCHEDULE – F GUARANTEED TECHNICAL PARTICULARS

1. GUARANTEED TECHNICAL PARTICULARS FOR DISTANCE PROTECTION NUMERICAL RELAY:

1. Make & Type: 2. Rated voltage, current and frequency: 3. Short time current rating: 4. No. of independent loop measurement: for phase fault and earth fault. 5. No. of zones: 6. Characteristic of relay for phaseand: Earth fault. 7. Range of ohmic setting: 8. Maximum operating time for the :

case mentioned under Sl.No.6, Technical Specification for distance relay. i) System impedance ratio ii) Relay setting (Ohms) iii) Fault locations (as % of relay setting) iv) Fault resistance (Ohms) v) Maximum operating time (milli seconds) 9. Resetting time: 10. Zone time setting range: 11. Facility for Zero sequence: Compensation for earth fault for zone 1, zone 2 & zone 3. 12. Method adopted for achieving: 100% direction sensitivity in case of balanced/unbalanced faults and frequency range for detecting the same. 13. Whether suitable for single phase and : three phase tripping. 14. Facility for switch on to fault feature: 15. Facility for carrier aided tripping: 16. Facility for weak end in feed: logic and current reversal logic. 17. VT fuse failure detection: a)Whether detects single phase : two phase, three phase PT fuse failure at Control room and yard. b)Method of detection: c)Whether block distance: protection in case of condition (a).

c) Whether distance protection: is allowed for tripping in case of fault when there is PT fuse failure.


116

18. Power swing blocking a) Detection method : b) Blocking time: c) Details of combination of Zones: that can be blocked. 19.a) Details of trip contacts: b) Details of additional contacts: provided. 20. Details of Auto reclose relay: a) Dead time setting: b) Reclaim time setting: c) Synchro check facility : d) Facility to initiate from main-2: 21. Details of IDMT directional earth: fault relay. a) Setting range: b) Characteristic curve at 10: times of set value. 22. Characteristic angle range of distance : relay. 23. Details of Disturbance recorder: a) No. of Analog input : b) No. of Digital input: c) Memory capacity to store records: d) Facility to down load and : analyse the recording. e) Sampling rate: 24. Details of fault locator: a) Whether in built : b) Whether accurate for all: operating conditions. c) Memory capacity to store records: d) Sampling rate: 25. Communication ports details (Media & protocol): 26. Details of software needed for setting,: down loading, fault analysis and programmable logic control. 27. Whether self diagnostic feature :

is provided. 28. Whether time Synchronising facility : is available. 29. Type tests complied (List out):

(Note : Separate GTPs have to be furnished for Main-I and Main-II relays proposed)


117

2.GUARANTEED TECHNICAL PARTICULARS FOR Transformer Biased Differential Relay:

S.no Description Guaranteed Specification

1 Make & Model

3 Current Rating: Continuous

4 Current Rating 1 sec

Operating time at 3 times normal current:

5 Operating time for instantaneous operation:

6 Bias setting range with steps

7 Availability of faulty phase identification

8 Availability of instantaneous High set feature with current setting range

9 Range of second harmonic restrain feature available.

10 Transformer vector group and CT ratio selection/corrections through software.

11 LBB Protection Setting range:

12 LBB Protection : Time range

13 Auxiliary supply operating range

14 Max Digital Input (Equipped)

15 Max Digital Input (Feasible)

16 Max Digital output (Equipped)

17 Max Digital Output (Feasible)

18 Rating of control output relays provided

19 Max. Single indications

20 Functionalities supported:

a) SOE (Mention resolution, record length)

b) Disturbance record (Mention resolution, record length, Sampling rate)

c) Fault recorder (Resolution, storage capacity)

d) Self diagnostics (Equipped)

33 Time synchronisation interface equipped (Mention media, standard supported)

34 Type tests Standards complied (List out)


118

3. GUARANTEED TECHNICAL PARTICUALRS FOR 230 KV LINE DIFFERENTIAL RELAY WITH BUILT IN DISTANCE PROTECTION FUNCTION : A. DISTANCE PROTECTION FUNCTIONS

1. Make & Type: 2.Rated voltage, current and frequency: 3.Short time current rating: 4.No. of independent loop measurement: for phase fault and earth fault. 5.No. of zones: 6.Characteristic of relay for phaseand: Earth fault. 7.Range of ohmic setting: 8.Maximum operating time for the : case mentioned under Sl.No.6, Technical Specification for distance relay. i)System impedance ratio ii)Relay setting (Ohms) iii)Fault locations (as % of relay setting) iv)Fault resistance (Ohms) v)Maximum operating time (milli seconds) 9.Resetting time: 10.Zone time setting range: 11.Facility for Zero sequence : Compensation for earth fault for zone 1, zone 2 & zone 3. 12.Method adopted for achieving: 100% direction sensitivity in case of balanced/unbalanced faults and frequency range for detecting the same. 13.Whether suitable for single phase and : three phase tripping. 14.Facility for switch on to fault feature: 15.Facility for carrier aided tripping: 16.Facility for weak end in feed: logic and current reversal logic. 17.VT fuse failure detection: a)Whether detects single phase : two phase, three phase PT fuse failure at Control room and yard. b) Method of detection: c) Whether block distance: protection in case of condition (a).

a)Whether distance protection: is allowed for tripping in case of

fault when there is PT fuse failure. 18. Power swing blocking

a) Detection method : b) Blocking time: c) Details of combination of Zones: that can be blocked.


119

19. a) Details of trip contacts: b) Details of additional contacts: provided.

20. Details of Auto reclose relay: a) Dead time setting: b) Reclaim time setting : c) Synchro check facility: d) Facility to initiate from main-2:

21. Details of IDMT directional earth: fault relay.

a) Setting range: b) Characteristic curve at 10: times of set value.

22. Characteristic angle range of distance : relay. 23. Details of Disturbance recorder:

a) No. of Analog input: b) No. of Digital input: c) Memory capacity to store records: d) Facility to down load and : analyse the recording. e) Sampling rate:

24. Details of fault locator: a) Whether in built : b) Whether accurate for all: operating conditions. c) Memory capacity to store records: d) Sampling rate:

25. Communication ports details (Media & protocol): 26. Details of software needed for setting,: down loading, fault analysis and programmable logic control. 27. Whether self diagnostic feature :

is provided. 28. Whether time Synchronising facility : is available. 29. Type tests complied (List out):

B. LINE DIFFERENTIAL FUNCTIONS

1. Communication port for relay to relay line differential protection

i) Physical port ii) Speed iii) IEEE C37.94SM compliant?

iv) Wave length supported. v) No of channels

2. Operating time for line differential protection.


120

4. GUARANTEED TECHNICAL PARTICUALRS FOR DIRECTIONAL AND NON DIRECTIONAL OVERCURRENT AND EARTH FAULT RELAYS:


1 Make & Model

2 Selectability between definite: time & IDMT O/C function.

3 Over current setting range :

4 Phase fault

5 Earth fault

6 Time setting range and steps

7 High set Over current setting range:

8 Phase fault. : directional over current relays

9 Earth fault : for LV side of transformer)

10 Time setting range and steps:

11 IDMT characteristics:

12 P.T. Voltage: Nominal input voltage

13 Relay characteristic angle : settable for Phase fault and Earth fault.

14 Operating time for instantaneous : element.

15 Principle of Directionality selection 16 Built in CT circuit Supervision 17 Built in PT Supervision 18 Reset ratio:

19 Resetting time:


21 Indications provided: Indications provided:

22 Max Binary Input (Equipped)

23 Max Binary Input (Feasible)

24 Max Binary output (Equipped)

25 Max Binary Output (Feasible)











121

5. GUARANTEED TECHNICAL PARTICULARS FOR BUS BAR PROTECTION RELAY:


1 Make & Model

2 Architecture (Centralised / Distributed)

3 Max operating time at 5 times setting

4 CT Supervision facility

5 Dynamic bus replica facility

6 Phase segregated type

7 Current or voltage setting

8 Availability of faulty phase indication

9 Availability of Check feature

10 Rated voltage and current

11 Resetting value

12 Does the relay give 100% security and reliability under all operating conditions and upto applicable fault level

13 Second harmonic rejection ratio

14 Third harmonic rejection ratio

15 Phase current slope adjustment

16 Phase differential current threshold

17 Residual current slope adjustment

18 Residual differential current threshold

19 Dead zone protection

20 Accuracy

21 Pickup
















122

6. GUARANTEED TECHNICAL PARTICULARS FOR UNDER FREQUENCY RELAY:


1 Make & Model


3 Max Binary Input Equipped (mention number of LEDs for programmable type and for other standard indications)

4 Max Binary output Equipped (mention number of LEDs for programmable type and for other standard indications)


6 Protection functionalities supported: 6.1 81U : No of stages 6.2 81U : Settings range with resolution 6.3 81U : Operational accuracy 6.4 81U : Operating time 6.5 81U : Timer range and resolution 6.6 81RF : No of stages 6.7 81RF : Settings range with resolution 6.8 81RF : Operational accuracy 6.9 81RF : Operating time 6.10 No of stages for automatic load restoration scheme 6.11 No of stages for under voltage protection function 6.12 Negative sequence overvoltage function Equipped

6.13 Total number of protection functions supported concurrently (State no stages of 81U,81RF,27,ALS supported concurrently)

7 Programmable scheme logic with Boolean functionalities supported

8 Blocking means of protection elements (Specify all possible means )

9 Recording Functionalities supported:

a) Disturbance recorder (Mention resolution, record length, Sampling rate, list also the Trigger criteria supported.)

b) Fault record: Storage length, no of records, Sampling rate, list also the Trigger criteria supported.

C)

Event record: Time resolution, Storage length, no of records,

d) Metering of which parameters, true rms e) Self diagnostics (Equipped) 10 Communication ports (Mention media, speed & protocol)

11 Communication port for device configuration (Mention media )


13 Operating temperature range

14 Relative humidity -Operating range

15 List out the type test standards complied by the relay


123

7. GUARANTEED TECHNICAL PARTICULARS FOR BAY CONTROL UNIT:


1 Make & Model










b)

Disturbance recorder (Mention resolution, storage capacity, record length-Pre-trigger & post trigger, Sampling rate (samples/cycle))

c) Metering - Four quadrant measurement Accuracy class

d) Fault recorder (Mention resolution, record length-Pre-trigger, post trigger, Sampling rate (samples/cycle))

e) Self diagnostics (Equipped during start up and always in powered ON condition)

f)

Programmable logic control facility in BCU configurable with IEC 61131-3 compliant tool for complex and sequential automation application, Boolean logic.

10 Operating system

11 Data transmission speed supported

12 Communication ports (Mention media, speed & protocol)

13 Communication port for device configuration (Mention media )


15 Time to update the Binary event (Status change of Binary inputs etc ) in the graphic display of BCU.

16 Time to update the Analog measurand (in the graphic display of BCU.

17 Provision of sufficient protection in the BCU to protect from natural hazards viz lightning & thunder systems.

18

Provision of Electrical isolation between all the functional Boards and field connections. Mention the dielectric isolation rating for each I/O Modules.


20 Relative humidity -Operating range

21 List out the type test standards complied by the BCU


124

8. GUARANTEED TECHNICAL PARTICULARS FOR GATEWAY EQUIPMENT:


1 Make & Model No. 2 Operating system

3

Processing platform :

(Embedded technology Processing capacity etc)

i Memory for data (Type and capacity) ii Memory for programme (Type and capacity) iii Facility for programmable logic functionality iv Maximum Binary Input/ Output Capabilities

Note :Mention for programme, data/records etc with type i.e

non-volatile/Flash etc.)

4

Availability of communication ports

(Mention media, protocol, data transmission speed)

i Towards Master Station’s

ii Towards SAS LAN/Bay level LAN iii For HMI interface (KB, Mouse, Monitor interface) iv Other ports (specify)

5 Switch over time (Applicable if redundant Gateway configuration is stipulated)



125

9. GUARANTEED TECHNICAL PARTICULARS FOR RELAY CABINETS


1 Make & Model

2 Cabinet dimension state with tolerance level.

3 Thickness of cabinet

a) Weight bearing sides

b) Other sides

4 Swing frame play in deg

5 Outer Glass door thickness

6 Degree of protection (IP )

7 Paint shade

a) Exterior

b) Interior

c) Paint standard (IS-5), Thickness of paint

8 Type tests complied (List out)

10. GUARANTEED TECHNICAL PARTICULARS FOR HMI Server & Engg. WS

S.no Description

Guaranteed Specification

For HMI Server

For Engg. WS

For metering

PC

Laptop computer

for SAS tool

1 Make & Model

2 Power supply operating voltage range

3 Processor

4 RAM (Type & capacity)

5 HDD (Type & capacity)

6 DVD (Type & capacity)

7 I/O Ports (Type & quantity)

8 Clock speed & Bus speed

9 Operating system

10 Mounting (Rack mount) N.A

11

HMI Software : Limitation of license for data points, IEDs if any.

12

NMS Software : Limitation of license for Nodes, Devices, data points, if any. SNMP version

13 Degree of protection (IP) of computer hardware unit


126


15 Operating humidity range

16 Vibration protection (Mention standard complied)

17 Shock protection (Mention standard complied)

18 Type tests complied (List out)

11. GUARANTEED TECHNICAL PARTICULARS FOR ETHERNET SWITCH

S.no Description

Guaranteed Specification(Yes/No); Specify additional details wherever necessary.

1 Make & Model

2 SNMP version supported forsecure configuration of networkswitches

3

SNMP version supported for providing secure access tonetwork devices through authentication, and encryption

4

SSL Web encryption preventingeaves dropping,tampering or message forgery

5

Port Securitythrough disablingof packets from unauthorizedMAC addresses

6 SNTP forsynchronizing theswitch’s internal clock

7 RSTP(802.1w) industry standard method for providingrecovery of redundant networks

8 RMON for monitoring of network status & statistics

9 VLAN(802.1q) providing theability of segregating thenetwork into smaller Virtual networks

10 QoS-(802.1Q)forprioritizationofnetworktraffic

11 Port Mirroring assisting networktroubleshooting

12 IGMP Snooping enablingreductions in multicast traffic

13 Backbone port : Speed, physical port type.

14 Tributary port : Speed, physical port type. 15 Type tests complied

i Degree of protection of enclosure (IP)

ii IEC61850-3

iii Other tests (List out)


127

12.GTP PARAMETERS FOR TRIVECTOR METER Sl. No.

Description BIDDER’S CONFORMATION

1 MAKE & TYPE 2 APPLICABLE STANDARD IS 14697 (AMENDED UP TO DATE)

(YES/NO)

3 ACCURACY CLASS 0.2S (YES/NO) 4 RATED VOLTAGE (+20% TO -40%) (YES/NO) 5 BASIC CURRENT (In) 1/5 AMP (YES/NO) 6 MAXIMUM CONTINUOUS CURRENT (1.2In) (YES/NO) 7 STARTING CURRENT 0.001 In (YES/NO) 8 SHORT TIME OVER CURRENT 20 Imax (YES/NO) 9 DISPLAY PROVIDED WITH BACKELIT LCD TYPE (YES/NO)

10 SEVEN NUMBER (5+2) display DIGITS (YES/NO) 11 SIZE OF DIGITS 10X5 MM MINIMUM 12 POWER CONSUMPTION OF VOLTAGE CIRCUIT 1W, 8VA

(YES/NO)

13 POWER CONSUMPTION OF CURRENT CIRCUIT 1VA (YES/NO) 14 kVA/KW MD PROVIDED (YES/NO)

15 INTEGRATION PERIOD OF MD 30/15 MIN With sliding window. (YES/NO)

16 COMMUNICATION PORTS 3 Nos (1 No OPTICAL PORT, 1No DLMS,1 No IEC 61850/MODBUS) - ARE PROVIDED (YES/NO)

17 MATERIAL OF BASE AND COVER POLYCARBONATE (YES/NO)

18 ALL ANTI-TAMPER FEATURES AS PER TENDER SPEC ARE PROVIDED (YES/NO)

19 TYPE OF BACKUP POWER PROVIDED BATTERY (industrial type)/SUPER CAPACITOR.

20 PROVISION OF MD RESET (AUTO/MANUAL) RESET DATE AND TIME (YES/NO)


128

21 EXTENDED TRANSPARENT TERMINAL BLOCK COVER/ suitable

arrangement (50MM) IS PROVIDED & SEALING ARRANGEMENT

(YES/NO)

22 COMPLIANCE TO PROTECTION FROM TAMPER & FRAUD. (YES/NO)

23 INTERNAL DIAMETER OF TERMINAL HOLES (5mm)-(Y/N)

24 IN-HOUSE TESTING FACILITIES FOR CONDUCTING ACCEPTANCE

TESTS AS PER IEC AND THIS SPECIFICATION (YES/NO)

25 AVAILABILITY OF CALIBRATED RSS METER OF CLASS 0.05-0.1 ACCURACY WITH VALID CALIBRATION CERTIFICATE (YES/NO)

26 DATA RETENTION FOR A LONG PERIOD UNDER POWER OFF CONDITION. (YES/NO)

27 DECIMAL RESOLUTION IN CALIBRATION MODE (YES/ NO) 28 ICON/ display support FOR CURRNT REVERSAL, PHASE WISE.

(YES/NO)

29 FIXING ARRANGEMENT OF METERS AS PER SPEC. (Y/N) 30 FURNISH PRINCIPLE OF OPERATION OF METER OUTLINING THE

METHODS AND STAGES OF COMPUTATIONS OF VARIOUS

PARAMETERS STARTING FROM INPUT VOLTAGE AND CURRENT

SIGNALS INCLUDING SAMPLING RATE IF APPLICABLE.(AS A

DOCUMENT HARD&SOFT COPY) (Y/N)

32 WHETHER the tendered meter TYPE TESTED as per IS:14697,

CBIP:88 and DLMS compliant as per ETD 13(6211) of 2010 April

2010 (YES/NO)

33 TYPE TEST REPORT NO.

34 RTC TEMPERATURE COMPENSATED 0-50˚C (Y/N)

35 FACILITY FOR CORRECTING RTC DRIFT THRO CMRI/REMOTE(Y/N)

36 RTC MAKE & ACCURACY (MINUTES/YEAR)

37 PCB IS MANUFACTURED BY SMT AND WITHOUT ANY WIRE LOOPS

AND JOINTS (YES/NO)

38 TOD TIME ZONES ARE PROVIDED FOR ENERGY & DEMAND AS PER

SPECIFICATION (YES/NO)

39 INTERNAL BATTERY GUARANTEE/UNDERTAKING IS SUBMITTED

(YES/NO)

40 WHETHER VOLTAGE&CURRENT CIRCUIT ARE SOLIDLY

CONNECTED INSIDE THE METER BODY WITHOUT ANY LINKS

(Yes/No)

41 WHETHER TYPE TEST REPORTS, MANUAL ALONG WITH COPY

OF THE SAME IN TWO CD'S IS SUBMITTED (YES/ NO)

42 AS PER TECHNICAL SPECIFICATION LEAST COUNT TEST IS

CARRIED OUT (YES/NO)

43 DETAILS OF CT PROVIDED (YES/NO)

44 NUMBER OF PULSES/KWHR&KVARH COUNT.(P.U)


129

45 TIME TAKEN TO FUNCTION UPON POWERING UP OF METER

46 DETAILS OF TERMINAL BLOCKS PROVIDED (YES/NO)

47 a.) GLOW WIRE TEST OF POLYCARBONATE IS CARRIED OUT (YES/NO)

48 MEMORY CAPACITY IN MB.

49 NON VOLATILE RETENTION TIME IN ABSENCE OF POWER.

50 OVER ALL DIMENSIONS & WEIGHT.

51 SEALING PROVISION FOR COVER, TERMINAL COVER,

COMMUNICATION PORT (YES/NO)

52 PROTECTION FROM LIGHTNING & HV SURGE (YES/NO)

53 RANGE FOR SAFE OPERATION (Voltage & Current) as per

Specification (YES/ NO).

54 TOTAL NUMBER OF TAMPER EVENTS AVAILABLE as per Clause

10.2.2. (YES/ No).

55 CMRI/BCS SOFTWARE AS PER SPECIFICATION (YES/NO)

56 AVAILABILITY OF SELF DIAGONSITIC FEATURES (YES/NO)

57 VALUE UPTO WHICH METER CAN WITHSTAND DIRECT CURRENT

IN AC CIRCUITS WITH OUT GETTING CT SATURATED

RESULTING IN MEASUREMENT ERROR OF MORE THAN

PERMISBLE LIMIT.

58 MAGNETIC IMMUNITY LEVEL FOR AC/DC


130

59 WHETHER THE METER CAN RECORD ENERGY AS PER VOLTAGE

MEASURED BETWEEN INCOMING PHASE & NEUTRAL TERMINAL

WHEN DC SIGNAL IS INJECTED ON NEUTRAL TERMINAL

THROUGH A DIODE-(YES/NO)

60 PCB MATERIAL GLASS FR-4 GRADE (YES/NO), IF NO FURNISH

DETAILS.

61 SHORT TIME OVER CURRENT WITHSTANDS CAPACITY FOR ONE

HALF CYCLES AT REFERENCE FREQUENCY-(IN TERMS OF I-MAX.)

62 DISPLAY SEQUENCE AS PER SPECIFICATION (YES/NO)

63 READING PROVIDED IN THE METER IS DIRECT (YES/NO)

64 CONFIRMATION TO THE EFFECT THAT METER DOES NOT GET

DAMAGED EVEN IF 240V (AC) IS APPLIED FOR 5 MINUTES

BETWEEN meters aux PHASE AND NEUTRAL terminals AND

CONITNUE TO RECORD CORRECTLY AFTER RESTORATION OF

NORMAL SUPPLY.(YES/NO)

65 CAN METER PERFORM WITHIN CLASS 0.5S ACCURACY UPTO

150% OF Imax with PF RANGE 0.5 LAG, 0.8 LEAD & UNITY.

(YES/NO)

66 WHETHER METER CAN RECORD ENERGY IF VOLTAGE FALLS

UPTO 50% OF RATED VOLTAGE AT In TO 1.2In. (YES/NO)

67 DEGREE OF PROTECTION IP-51 (Y/N)

68 DATA TRANSFER TIME

A METER TO CMRI (MIN).

B CMRI TO BCS (MIN).

72 view formats as per specification (Y/N)


131

SCHEDULE - G

STATEMENT OF TYPE TEST PARTICULARS Sl.No.

Material and Description of Test

Standard complied

Name of Lab

Date of Test

NOTE: The above type tests should have been conducted in any Lab/ testing facilities recognized by govt. of India or accredited by National Accreditation Board of testing and calibration Laboratories (NABL) or recognized by BIS or reputed/ accredited lab from foreign countries within five (5) years from the date of Tender Opening. COMPANY SEAL DATESIGNATURE DESIGNATION COMPANY NAME


132

ANNEXURE I UNDERTAKING TOWARDS JURISDICTION OF LEGAL PROCEEDINGS

(To be furnished in non-judicial stamp paper value of not less than Rs. 80/-) This Undertaking executed at… ………………………………………………….. on this ……………..

(date ) ………………………………… …………………. Month Two Thousand …………by M/s

………………………………………………, a company registered under Companies Act , 1956 having

its registered office at ……………………………………………………………………………………….

hereinafter called the Contractor ( which expression shall where the context so admits mean

and include its successors in office and assigns ) with the Tamil Nadu

Transmission corporation limited (TANTRANSCO), a company registered under Companies

Act ,1956, having its registered office at 144, Anna Salai, NPKRR Maaligai, Chennai – 600

002, hereinafter called the Purchaser (which expression shall where the context admits

mean and include its successors in office and assigns ).

WHEREAS the contract is for the supply of……………………………….. in terms of the Purchase Order No…………….dated…………………………… AND WHEREAS in accordance with Clause ……….. of the above said P.O Certain terms were

stipulated for the above supply.

AND WHEREAS in accordance with clause …… ……………………… of the above mentioned

Purchase Order the contractor has to furnish an Undertaking that no suit or any proceedings

in regard to any matter arising in any respect under this contract shall be instituted in any

court other than in the City Civil Court of Chennai or other Court of small causes, at Chennai.

In consideration of the TANTRANSCO having agreed to accept the Undertaking from the

contractor, undertakes that no suit or proceedings in regard to any matter arising in any

respect under this contract shall be instituted in any court other than in the City Civil Court of

Chennai or other Court of small causes, at Chennai.

It is also agreed that no other court shall have jurisdiction to any suit or proceedings even

though part of the cause of action might arise within their jurisdiction. In case any part of

the action arises within the jurisdiction of any of the courts in Chennai City, then it is agreed

to between the parties that such suits or proceedings shall be instituted in court within Tamil

Nadu and no other court outside Tamil Nadu shall have jurisdiction even though any part of

the cause might arise within the jurisdiction of such courts.

IN WITNESS WHEREOF THIRU……………………………………………….. of the contractor hereby puts his hand and seal for due observance of the Undertaking in the presence of the following witnesses. SIGNATURE WITH SEAL WITNESSES: (Signature with Name and Address) 1. 2.


133

ANNEXURE – II

SALES TAX CERTIFICATE

To

( Name and address of the Company )

…………………………………………….

…………………………………………….

…………………………………………….

TNVAT NO……………………………………….

It is hereby confirmed that the goods listed below are purchased by us for use in Generation,

Transmission and Distribution of Electrical energy.

Sl Invoice No Description Quantity Value No. Date of goods

……………………… Total ………………………. ( Rupees ……………………………………………………………………………………only ) Place: Date : Signature : Name : Status : Seal of Office


134

ANNEXURE –III DRAFT UNDERTAKING IN LIEU OF PAYMENT OF EMD

THIS UNDERTAKING executed at . . . . . . . . . . . . . . . . on this the . . . . . .. . . . . . . . . . . . . . . .day of . . . Two thousand and .......... by M/S. ................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a company registered under companies Act 1956, having its registered office at . . . . . . . . . . . . herein-under, called the "Tenderer" to AND IN FAVOUR OF the Tamil Nadu Transmission corporation limited, a company registered under Companies Act,1956 having its office at Electricity Avenue, 144, Anna Salai, Chennai -600 002, represented by . . . . . . . . . hereinafter called the 'TANTRANSCO'. WHEREAS the contract is for the supply/erection/construction etc. in terms of the Tender Specification NO.............dated AND WHEREAS in accordance with clause . . . . . . . . . . .of the above said tender specification, the tenderer has to furnish E.M.D. of Rs. (Rupees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . only) AND WHEREAS the tenderer has requested the TANTRANSCO to accept an undertaking in lieu of payment in cash of the E.M.D. AND WHEREAS the TANTRANSCO has accepted the request of the tenderer subject to executing an undertaking to pay to the TANTRANSCO not exceeding Rs...... (Rupees . . . . . . . . . . . . . . . . . . . . . . only) representing the Earnest Money Deposit together with costs in case of non fulfillment of the conditions stipulated in the Tender Specification/or the conditions stipulated in the contract by the tenderer. IN CONSIDERATION OF THE TANTRANSCO having agreed to accept an undertaking from the tenderer in lieu of payment of Earnest Money Deposit in cash, the tenderer undertakes to pay the sum of Rs. (Rupees . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .only) immediately when a demand is raised by the TANTRANSCO against the tenderer without any demur in the event of the following : i. If he withdraws his tender or backs out after acceptance of the tender or fails to remit the Security Deposit. ii.If he revises any of terms quoted during the validity period, without specific request by the TANTRANSCO. iii. If he violates any of the conditions of Tender Specification No. NOW THE CONDITION OF THE ABOVE WRITTEN UNDERTAKING is such that if the tenderer shall duly and faithfully observe and perform the terms and conditions specified in terms of above, then the above written undertaking shall be void, otherwise the same shall remain in full force. The tenderer undertakes not to revoke this guarantee till the contract is completed under the terms of contract. The expressions, 'tenderer' and ‘T' before used hereafter shall include their respective successors and assign in office. IN WITNESS WHEREOF Thiru for and on behalf of the tenderer has signed this undertaking on the day, the month and year first above written. In the presence of Witnesses: 1. Signature NAME IN BLOCK LETTERS Signature with names and addresses. SEAL OF THE COMPANY

tamil nadu transmission corporation limited tender...

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