Tata Power CC25VJS009 Low Voltage Switchgear Control Panel User Guide
- June 5, 2024
- Tata Power
Table of Contents
CC25VJS009 Low Voltage Switchgear Control Panel
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Product Information
Specifications:
- Tender Reference: CC25VJS009
- Bid Guarantee Fee / EMD: Rs. 2,00,000/-
- Tender Fee: Rs. 2,000/-
- Last Date for Payment of Tender Participation Fee: 8th May
2024
Product Usage Instructions
Participating in the Tender:
Follow the steps below before the last date for payment of the
Tender Participation Fee:
-
Submit the non-refundable Tender Fee as indicated in the table
above. -
Submit a duly signed and stamped letter on Bidder’s letterhead
with the following details:- Tender Enquiry number
- Name of authorized person
- Contact number
- Email id
- Details of submission of Tender Participation Fee
-
Email the necessary attachments to [email protected]
with a copy to [email protected].
After completing the above steps, interested bidders need to
submit the Tender Participation Fee and Authorization Letter before
the specified deadline. Once done, a link from Tata Power E-Tender
system (Ariba) will be shared for further communication and bid
submission.
All future correspondence related to the tender, bid submission,
date extensions, and queries will be through Tata Power E-Tender
system (Ariba). No email or verbal communication will be
entertained.
Important Notes:
-
If the deadline for Payment of Tender Participation Fee lapses,
no bidder will receive the link from Tata Power E-Tender System
(Ariba). -
Any payment made by a bidder who has not completed the
prerequisites will not be refunded. -
All future updates or changes to the tender will be posted on
the Tata Power website: https://www.tatapower.com.
Frequently Asked Questions (FAQ)
Q: How can I participate in the tender process?
A: To participate, follow the steps outlined in the
“Participating in the Tender” section above.
Q: What happens if I miss the deadline for payment of the
Tender Participation Fee?
A: If you miss the deadline, you will not receive the link from
Tata Power E-Tender System (Ariba) and won’t be able to participate
in the tender.
“`
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 7th May 2024
The Tata Power Company Limited Invites Tender through E-Tender Two-Part Bidding Process from interested bidders for the following package: –
A. Summary of the tendered package:
Sr. No.
Description
Tender Reference no.
Bid Guarantee Fee / EMD
(Rs.)
Tender
Fee (Rs.)
Last Date and Time for payment
of Tender Participation fee
For the following package please send mail to Mr. Vinayak Shinde ([email protected]) with copy to Mr. Rameshkumar P N ([email protected])
Corrigendum to Tender
issued vide advertisement 1. published dtd. 27th Apr 2024 – CC25VJS009
SITC of Switchgear for Mounte
South DSS
2,00,000/- 2,000 /- 8th May 2024
B. Procedure to Participate in Tender.
Following steps to be done before “Last date and time for Payment of Tender Participation Fee” as mentioned above
1. Non-Refundable Tender Fee, as indicated in table above, to be submitted in the form of
Direct deposit in the following bank account and submit the receipt along with a covering letter clearly indicating the Tender Reference number
Beneficiary Name The Tata Power Co. Ltd.
Bank Name HDFC Bank Ltd.
Branch Name Fort Branch, Mumbai
Address Maneckji Wadia Building, Nanik Motwani Marg, Fort, Mumbai 400023.
Branch Code 60
Bank & Branch Code 400240015
Account No 00600110000763
Account type CC
IFSC Code HDFC0000060
2. Eligible and Interested Bidders to submit duly signed and stamped letter on Bidder’s letterhead indicating
Tender Enquiry number
Name of authorized person
Contact number
e-mail id
Details of submission of Tender Participation Fee
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 1
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 7th May 2024
E-mail with necessary attachment of 1 and 2 above to be send to
[email protected] with copy to [email protected] “Last
date and time for Payment of Tender Participation Fee”
Interested bidders to submit Tender Participation Fee and Authorization Letter
before Last date and time as indicated above after which link from Tata Power
E-Tender system (Ariba) will be shared for further communication and bid
submission.
Please note all future correspondence regarding the tender, bid submission,
bid submission date extension, Pre-bid query etc. will happen only through
Tata Power E-Tender system (Ariba).
No e-mail or verbal correspondence will be responded. All communication will
be done strictly with the bidder who have done the above step to participate
in the Tender.
Also it may be strictly noted that once date of “Last date and time for
Payment of Tender Participation Fee” is lapsed no Bidder will be sent link
from Tata Power E-Tender System (Ariba). Without this link vendor will not be
able to participate in the tender. Any last moment request to participate in
tender will not be entertained.
Any payment of Tender Participation Fee by Bidder who have not done the pre-
requisite will not be refunded.
Also all future corrigendum’s to the said tender will be informed on Tender
section on website https://www.tatapower.com only.
Summary of Changes
1
Date extension of submission of Expression of Interest till 8th May 2024
The original tender document is reproduced below.
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 2
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
The Tata Power Company Limited Invites Tender through E-Tender Two-Part Bidding Process from interested bidders for the following package: –
A. Summary of the tendered package:
Sr. No.
Description
Tender Reference no.
Bid Guarantee Fee / EMD
(Rs.)
Tender
Fee (Rs.)
Last Date and Time for payment
of Tender Participation fee
For the following package please send mail to Mr Vinayak Shinde ( [email protected])
with copy to Mr. Rameshkumar P N ([email protected]).
SITC of Switchgear for Mounte South DSS
CC25VJS009
2,00,000/- 2,000 /- 6th May 2024
B. Procedure to Participate in Tender. Following steps to be done before “Last
date and time for Payment of Tender Participation Fee” as mentioned above 1.
Non-Refundable Tender Fee, as indicated in table above, to be submitted in the
form of Direct deposit in the following bank account and submit the receipt
along with a covering letter clearly indicating the Tender Reference number
Beneficiary Name The Tata Power Co. Ltd. Bank Name HDFC Bank Ltd. Branch
Name Fort Branch, Mumbai Address Maneckji Wadia Building, Nanik Motwani
Marg, Fort, Mumbai 400023. Branch Code 60 Bank & Branch Code 400240015
Account No 00600110000763 Account type CC IFSC Code HDFC0000060 2.
Eligible and Interested Bidders to submit duly signed and stamped letter on
Bidder’s letterhead indicating Tender Enquiry number Name of authorized person
Contact number e-mail id Details of submission of Tender Participation Fee
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 1
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
E-mail with necessary attachment of 1 and 2 above to be send to
[email protected] with copy to [email protected] before “Last
date and time for Payment of Tender Participation Fee”
Interested bidders to submit Tender Participation Fee and Authorization Letter
before Last date and time as indicated above after which link from Tata Power
E-Tender system (Ariba) will be shared for further communication and bid
submission.
Please note all future correspondence regarding the tender, bid submission,
bid submission date extension, Pre-bid query etc. will happen only through
Tata Power E-Tender system (Ariba).
No e-mail or verbal correspondence will be responded. All communication will
be done strictly with the bidder who have done the above step to participate
in the Tender.
Also it may be strictly noted that once date of “Last date and time for
Payment of Tender Participation Fee” is lapsed no Bidder will be sent link
from Tata Power E-Tender System (Ariba). Without this link vendor will not be
able to participate in the tender. Any last moment request to participate in
tender will not be entertained.
Any payment of Tender Participation Fee by Bidder who have not done the pre-
requisite will not be refunded.
Also all future corrigendum’s to the said tender will be informed on Tender
section on website https://www.tatapower.com only.
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 2
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
OPEN TENDER NOTIFICATION
FOR
SITC of Switchgear for Mounte South DSS
The Tata Power Company Limited (Tata Power)
Smart Center of Procurement Excellence,2nd Floor, Sahar Receiving Station,
Near Hotel Leela,
Sahar Airport Road, Andheri East, Mumbai-400059
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 3
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
Section A : Tender Notice including Instruction to Bidders
1. Tender Details 1.1 Key Tender Specific Details
Reference Number
CC25VJS009
Description
SITC of Switchgear for Mounte South DSS
Type of Tender
Firm Order
Estimated Period
–
Tender Fee
Rs 2000/-
Earnest Money Deposit Rs 2,00,000/-
(EMD)
Rs. Two Lakhs Only
Price Basis
Firm Price
Executive Handling Name: Mr. Vinayak Shinde
this Tender*
E-Mail ID: [email protected]
Technical Query *
Name: Mr. A V Potdar E-Mail ID: [email protected]
*You may contact the above personnel from Monday to Friday during office hours only.
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 4
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
1.2 Calendar of Events
Payment of Tender Fee and Submission
(a)
of letter nominating authorized person by Interested Bidder indicating their
Till 6th May 2024
intent to Buy Tender
Access to Tender Documents through E-
(b) Tender system to authorized person of 6th May 2024
Interested Bidder
(c)
Last Date of receipt of pre-bid queries, if any.
10th May 2024, 1500 Hrs.
(d)
Last Date of Posting Consolidated replies to all the pre-bid queries as received
14th May 2024
(e) Last date and time of receipt of Bids
27th May 2024
Note:- * These date and time are as planned and tentative. In case of change the same shall be intimated to Authorized Person of Interested Bidder through E-Tender System.
Please note post submission of Bids relevant communication will be done with Authorized Person of Interested Bidder through E-Tender System
1.3 Mandatory documents required along with the Bid
1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 1.3.6
Bid Guarantee Fee (EMD) of requisite value and validity. PLEASE NOTE THAT BID GUARANTEE ONLY IN FORM OF BANK GUARANTEE WILL BE ACCEPTED. Requisite Documents to ascertain fulfilling of Technical and Commercial Pre-Qualification Requirement as detailed in Tender Enquiry. Technical Submission including Drawings, Type Test details etc as detailed in Technical Specification. Required Commercial Submission as detailed in Tender Document Technical and Commercial Clarification and Deviations as per the format attached in the Tender Enquiry Proper authorization letter to sign the tender and participate in Tata Power E-Tender system on the behalf of bidder.
1.3.7 For vendor not registered with Tata Power, Duly filled Vendor Registration form with all supporting documents is mandatory to participate in the Tender.
Please note that in absence of any of the above documents, the bid submitted by a bidder shall be liable for rejection.
Also please note that whenever editable format are shared it is requested that data be filled in relevant cells. No formatting or addition / deletion of rows / columns to be done. Wherever editable Excel submission are requested the file should be free from references, macros etc.
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 5
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
Checklist of Document Submission
Stage of Tendering Document
Type of Format
Mode of submission
Before last date of Pre-Bid Query
Query / Clarification / Deviation (QCD) Format. (F1) Technical and Commercial
Editable Excel Format
Through message in Etender system
Bid Submission Envelope 1 (First Part)
Earnest Money Deposit Original Bank Guarantee
In Sealed Envelope
Bid Submission Envelope 2 (Second Part)
Documents to be uploaded in Ariba only. In case of multiple files, a zipped folder can be attached for the same (size limit of 100MB per zipped file)
To be submitted Duly filled PQR and supporting documents Under Tab 2.1 in Ariba
Duly filled PQR format Editable Excel Format E-Tender System
Backup documents for Technical and Commercial PQR
Signed and Scanned documents
E-Tender System
To be submitted Technical Submission and Supporting Documents under Tab 2.2 in Ariba
Duly filled Unpriced Bid
Format. Signed copy of
Technical Specifications
indicating
your
acceptance of the same
Signed and scanned copy of document
E-Tender System
To be submitted Commercial Submission and supporting document under Tab 2.3 in Ariba
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 6
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
Letter of Undertaking (FOR VENDORS NOT REGISTERED WITH TATA POWER)
Scanned Copy of letter of undertaking duly filled, stamped and signed
E-Tender System
E-auction form
Undertaking
Scanned Copy of letter of undertaking duly filled, stamped and signed
E-Tender System
Bid
Submission Duly filled Priced Bid Hard copy in original Sealed Envelope
Envelope 3 (Third Format
duly signed and
Part)
stamped
Duly filled Priced Bid To be entered in E- E-Tender System
Format
Tender System
1.4 Deviation from Tender Normally, the deviations to tender terms are not
admissible and the bids with deviation are liable for rejection. Hence, the
bidders are advised to refrain from taking any deviations on this Tender.
Still in case of any deviations, all such deviations shall be set out by the
Bidders, clause by clause in the Query / Clarification / Deviation (QCD)
Format. Deviations have to be mandatorily submitted in editable Excel sheet.
Technical or Commercial Deviation should be mentioned in Deviation Format
only. Deviation in any other document or Format will not be considered.
1.5 Right of Acceptance/Rejection
1.5.1 Bids are liable for rejection in absence of following:1.5.2 Mandatory
Documents as listed in 1.3 above 1.5.3 Price Bid as per the Price Schedule
mentioned in Tender Document 1.5.4 Receipt of Bid and Response to queries
within the due date and time Tata Power reserves the right to accept/reject
any or all the bids without assigning any reason thereof.
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 7
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
1.6 Qualification Criteria
S.No. Description
Qualifying Criteria
Evaluation Documents Required
1
Self-undertaking to be
Bidder must be an OEM of Equipment with submitted in this regard.
Infrastructure
manufacturing facility / assembly in India. The bidder must have in-house routine and acceptance testing facilities for acceptance as per relevant IS/IEC
TATA Power reserves the right to inspect the said manufacturing facility as a proof of compliance to this
parameter.
2
Purchase Order Copies and
Completion Certificates.
Supply and Experience
The bidder must have supplied for same or higher size and voltage
a) A minimum of 12 nos switchgear panels during last 3 years or
b) A single order of 6 nos or c) Two orders of 4 nos last 3 years. Indian
Subsidiaries of global companies having plant in India are also eligible to
bid if the qualification requirements stated above are met independently or in
combination with the parent company. Declaration from parent company needs to
be submitted.
Self-undertaking to be
submitted
in
this
regard.Declaration
from
parent company needs to be
submitted. TATA Power
reserves the right to inspect
the said manufacturing
facility as a proof of
compliance
to
this
parameter.
The bidder should have performance Supply List & Performance
certificates for 2 year satisfactory performance Certificates from the utilities
from at least 2 reputed Distribution Utilities for
equipments of similar or higher rating. The
work against these issued certificates should be
3
completed in last seven years from the date of
Performance bid submission. In case the bidder has a
previous association with any of Tata Power
Groups for similar products and services, the
performance feedback for that bidder by Tata
Power User Group shall only be considered
irrespective of performance certificates issued
by any third organization.
4
Commercial Capability
Average Annual turnover of the bidder for last Copy of audited Balance
three years shall not be less than Rs 20 Crs
Sheet and P&L Account along
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 8
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
S.No. Description
Qualifying Criteria
Evaluation Documents Required
with UDIN number to be submitted in this regard.
5 Type Test
The bidder shall submit Type test reports obtained from CPRI/ERDA/ International Accredited Lab for the equipment / material offered. The type tests should have been conducted on the equipment / material of the same design. The type tests should have been conducted within 5 years prior to the date of bid opening. Time period for type test can be extended by another 5 years as a special case, if there is no change in design / material of construction (MOC).
Type Test Report. Undertaking that there is no change in design / material of construction (MOC) if Type Test Report older than 5 years.
In case the type test reports furnished are not for the quoted equipment / material but for the equipment / material with higher voltage class and/or different capacity, then type test shall be carried out for the offered equipment / material from CPRI/ERDA / International Accredited Lab without any cost implication to the owner and the Type Test reports shall be submitted before dispatch of the equipment / material.
Type test reports for the
offered equipment / material
from
CPRI/ERDA/
International Accredited Lab
without any cost implication
to the owner and the Type
Test reports shall be
submitted along with BID.
1.7 Pre-Bid Queries
Technical or Commercial Pre-Bid Queries if any has to be sent through message in E-Tender System. Pre-Bid Query has to be sent only in the Query / Clarification / Deviation (QCD) Format. Pre-Bid Queries sent in any other format or send through any other communication channel will not be accepted and answered. Pre-Bid Query have to be sent in the stipulated timeline as defined in the Tender Document. No Pre-Bid Query will be accepted after the due time and date as specified as “Last Date of receipt of pre-bid queries, if any”
1.8 Marketing Integrity
We have a fair and competitive marketplace. The rules for bidders are outlined
in the General Condition of Contracts and other parts of Tender Documents.
Bidders must agree to these rules prior to participating. In addition to other
remedies available, Tata Power reserves the right to exclude a bidder from
participating in future markets due to the bidder’s violation of any of the
rules or obligations contained in the General Condition of Contracts or other
part of the Tender Documents. A bidder who violates the market place rules or
engages in behavior that disrupts the fair execution of
Property of Tata Power Not to be reproduced without prior written permission of Tata Power
Page | 9
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
the marketplace, may result in restriction of a bidder from further
participation in the marketplace for a length of time, depending upon the
seriousness of the violation. Examples of violations include, but are not
limited to:
Failure to honor prices submitted to the marketplace Breach of terms as
published in TENDER
Submit irrelevant documents or frequently cases of missing documents as part
of compliance to Qualifying, Technical or Commercial Requirements causing
unnecessary delay in Tender Evaluation
1.9 Supplier Confidentiality
All information contained in this tender is confidential and shall not be
disclosed, published or advertised in any manner without written authorization
from Tata Power. This includes all bidding information submitted to Tata
Power. All tender documents remain the property of Tata Power and all
suppliers are required to return these documents to Tata Power upon request.
Suppliers who do not honor these confidentiality provisions will be excluded
from participating in future bidding events.
1.10 Payment Terms
100% payment shall be made within 60 days ( 45 days for MSME) from the receipt
and acceptance of the material at the Consignee Stores/Site/Location as per
the Contractual Terms and Conditions.
2. Evaluation Criteria
The bids will be evaluated technically on the compliance to tender terms and
conditions.
The bids will be evaluated commercially on the overall all-inclusive lowest
cost for the complete tender BOQ / each line item as calculated in Schedule of
Items. Tata Power however, reserves right to split the order line item wise
and/or quantity wise among more than one Bidder. Hence all bidders are advised
to quote their most competitive rates against each line item.
Bidder has to mandatorily quote against each item of Schedule of Items.
Failing to do so, Tata Power may reject the bids.
NOTE: In case of a new bidder not registered with Tata Power, factory
inspection and evaluation shall be carried out to ascertain bidder’s
manufacturing capability and quality procedures. However Tata Power reserves
the right to carry out factory inspection and evaluation for any bidder prior
to technical qualification. In case a bidder is found as Disqualified in the
factory evaluation, their bid shall not be evaluated any further and shall be
summarily rejected. The decision of Tata Power shall be final and binding on
the bidder in this regard.
2.1 Price Variation Clause and Cap: Firm Price
Property of Tata Power Not to be reproduced without prior written permission of Tata Power Page | 10
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
3. Submission of Bid Documents
3.1 Bid Submission
Bidders are requested to submit their offer in line with this Tender document.
Bids shall be submitted in 3 (three) parts:
FIRST PART: “EMD BANK GUARANTEE” of Value detailed in 1.1 valid for 180 days
from the due date of bid submission in the form of Bank Guarantee favoring
`The Tata Power Company Limited’. The EMD has to be strictly in the format as
mentioned in Tender Document, failing which it shall not be accepted by Tata
Power and the bid as submitted shall be liable for rejection.
Note : BG of 180 days and further claim period of 180 days is needed. In case
the same cannot be issued by your bank then BG valid for 365 days can be
provided.
Note : At times bidders have sought Tata Power bank details which is needed by
them to make BG. Hence the same is reproduced below. These details are only
provided to facilitate making of BG if needed:
Tata Power’s Bank Details for submitting EMD BG:
Bank Name & Address HDFC Bank, Maneckji Wadia Building, Nanik Motwani Marg,
Fort, Mumbai 400 023. A/c no. – 00600110000763 IFSC Code HDFC0000060
The hard copy of EMD in a sealed envelope should be sent on address mentioned
in Tender document.
First Part has to be submitted in Sealed Envelope.
SECOND PART: “TECHNICAL / UN-PRICED COMMERCIAL BID” shall contain the
following documents:
a) Documentary evidence in support of Technical, Commercial qualifying
criteria b) Technical literature/GTP/Type test report/Details of Qualified
Manpower Available/ Testing
Facility available etc. (complete in all respect as desired and detailed in
Technical Specification and Technical Requirement Section) c) Duly filled
Technical and Commercial Deviation Sheets d) Duly filled formats like
Authorization affidavit form e) Unpriced Commercial Bid
The technical / un-priced commercial bid shall be properly indexed and is to
be submitted in Soft Copy though E-Tender system of Tata Power. Hard Copy of
Technical Bids need not be submitted.
Second Part has to be submitted through E-Tender System Only
THIRD PART: “PRICE BID” shall contain only the price details and strictly in
Price Bid format along with explicit break up of basic prices and applicable
GST. Basic price should include packaging forwarding, freight, transit
insurance and any other cost envisaged by the bidder.
Third part has to be submitted through E-Tender System (ARIBA) only.
Property of Tata Power Not to be reproduced without prior written permission
of Tata Power Page | 11
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
FOR BIDS INVITED THROUGH E-TENDER SYSTEM (TECHNICAL AND UN-PRICED COMMERCIAL
BID) :
In response to advertisement Bidder has to provide details of person
authorized to Bid on behalf of the Bidder. An e-mail will be generated by
E-Tender System and the authorized person can download the Tender Documents
from the system. SECOND and THIRD PART of the Bid have to be submitted in
E-Tender System.
Bidders have to mandatorily submit SECOND PART (Technical and Un-priced
commercial Bid) only through E-Tender system of Tata Power. Bids submitted
through any other form/ route shall not be admissible.
EMD “Please mention Tender Reference No”
Please mention our Tender Reference No on the Tender and drop the same in our
Tender Box located at The Tata Power Company Limited, Smart Center of
Procurement Excellence,2nd Floor, Sahar Receiving Station, Near Hotel Leela,
Sahar Airport Road, Andheri East, Mumbai-400059
Bids submitted by Email/Telex/Telegram /Fax will be rejected. No request from
any Bidder to Tata Power to collect the proposals from Courier/Airlines/Cargo
Agents etc. shall be entertained.
SIGNING OF BID DOCUMENTS:
The bid must contain the name, residence and place of business of the person
or persons making the bid and must be signed and sealed by the Bidder with his
usual signature. The names of all persons signing should also be typed or
printed below the signature.
The Bid being submitted must be signed by a person holding a Power of Attorney
authorizing him to do so, certified copies of which shall be enclosed.
The Bid submitted on behalf of companies registered with the Indian Companies
Act, for the time being in force, shall be signed by persons duly authorized
to submit the Bid on behalf of the Company and shall be accompanied by
certified true copies of the resolutions, extracts of Articles of Association,
special or general Power of Attorney etc. to show clearly the title, authority
and designation of persons signing the Bid on behalf of the Company.
Satisfactory evidence of authority of the person signing on behalf of the
Bidder shall be furnished with the bid.
A bid by a person who affixes to his signature the word President’,Managing
Director’, Secretary’,Agent’ or other designation without disclosing his
principal will be rejected.
The Bidder’s name stated on the Proposal shall be the exact legal name of the
firm.
3.2 Contact Information
Communication Details: Detailed in 1.1
3.3 Bid Prices
Bidders shall quote for the entire Scope of Supply/ work with a break up of
prices for individual items and Taxes & duties. The bidder shall complete the
appropriate Price Schedules included herein, stating the Unit Price for each
item & total price with taxes, duties & freight up to destination at various
sites of Tata Power. The all-inclusive prices offered shall be inclusive of
all costs as well as Duties, Taxes and Levies paid or payable during the
execution of the supply work, breakup of price constituents.
Property of Tata Power Not to be reproduced without prior written permission
of Tata Power
Page | 12
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
The quantity break up shown else-where other than Price Schedule is tentative. The bidder shall ascertain himself regarding material required for completeness of the entire work. Any items not indicated in the price schedule but which are required to complete the job as per the Technical Specifications/ Scope of Work/ SLA mentioned in the tender, shall be deemed to be included in prices quoted.
3.4 Bid Currencies
Prices shall be quoted in Indian Rupees Only. It also may be noted that the denomination of Purchase Order / Outline Agreement / Rate Contract and associated Payment to Successful Bidder shall also be in Indian Rupees Only. In case Bidder intends to import any equipment, part etc and supply to Tata Power then all liability and costs related to import will rest with the Bidder. All statutory compliances, payments, expenditure etc related to importing of equipment will be responsibility of the bidder.
3.5 Period of Validity of Bids
Bids shall remain valid for 180 days from the due date of submission of the bid.
Notwithstanding clause above, Tata Power may solicit the Bidder’s consent to an extension of the Period of Bid Validity. The request and responses thereto shall be made in writing.
3.6 Alternative Bids
Bidders shall submit Bids, which comply with the Bidding documents. Alternative bids will not be considered. The attention of Bidders is drawn to the provisions regarding the rejection of Bids in the terms and conditions, which are not substantially responsive to the requirements of the bidding documents.
3.7 Modifications and Withdrawal of Bids
The bidder is not allowed to modify or withdraw its bid after the Bid’s submission. The EMD as submitted along with the bid shall be liable for forfeiture in such event.
3.8 Earnest Money Deposit (EMD)
The bidder shall furnish, as part of its bid, an EMD amounting as specified in
the tender. The EMD is
required to protect the Tata Power against the risk of bidder’s conduct which
would warrant forfeiture. The EMD shall be in following form:
Bank Guarantee valid for 180 days after due date of submission.
The EMD shall be forfeited in case of:
a) The bidder withdraws its bid during the period of specified bid validity.
Or
b) In case of a successful bidder, if the Bidder, within 15 days, does not
i)
accept the purchase order, or
ii) furnish the required Contract Performance Bank Guarantee (CPBG)
Original Bank Guarantee submitted as EMD shall be returned only after completion of award process for unsuccessful bidders and issue of Contract Performance Bank Guarantee (CPBG) for successful bidder.
Property of Tata Power Not to be reproduced without prior written permission of Tata Power Page | 13
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
4. Bid Opening & Evaluation process
4.1 Process to be confidential
Information relating to the examination, clarification, evaluation and
comparison of Bids and recommendations for the award of a contract shall not
be disclosed to Bidders or any other persons not officially concerned with
such process. Any effort by a Bidder to influence Tata Powers processing of
Bids or award decisions may result in the rejection of the Bidder’s Bid.
4.2 Technical Bid Opening
Bids will be opened at Corporate Office of Tata Power as per our standard
Process. The bids shall be opened internally by Tata Power. Technical bid must
not contain any cost information whatsoever.
First the envelope marked “EMD” will be opened. Bids without EMD of required
amount/ validity in prescribed format, shall be rejected.
Next, the technical bid of the bidders who have furnished the requisite EMD
will be opened in E-Tender system.
4.3 Preliminary Examination of Bids/Responsiveness
Tata Power will examine the Bids 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 Bids are generally in order. Tata Power may ask for submission of
original documents in order to verify the documents submitted in support of
qualification criteria.
Prior to the detailed evaluation, Tata Power will determine the substantial
responsiveness of each Bid to the Bidding Documents including production
capability and acceptable quality of the Goods offered. A substantially
responsive Bid is one, which conforms to all the terms and conditions of the
Bidding Documents without material deviation.
Bid determined as not substantially responsive will be rejected by the Tata
Power and/or the Tata Power and may not subsequently be made responsive by the
Bidder by correction of the nonconformity.
4.4 Techno Commercial Clarifications
Bidders need to ensure that the bids submitted by them are complete in all
respects. To assist in the examination, evaluation and comparison of Bids,
Tata Power may, at its discretion, ask the Bidder for a clarification on its
Bid for any deviations with respect to the Tata Power specifications and
attempt will be made to bring all bids on a common footing. All responses to
requests for clarification shall be in writing and no change in the price or
substance of the Bid shall be sought, offered or permitted owing to any
clarifications sought by Tata Power.
4.5 Price Bid Opening
The EMD of the bidder withdrawing or substantially altering his offer at any
stage after the technical bid opening will be forfeited at the sole discretion
of Tata Power without any further correspondence in this regard.
Property of Tata Power Not to be reproduced without prior written permission
of Tata Power
Page | 14
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
Arithmetical errors will be rectified on the following basis: If there is a
discrepancy between the unit price and the total price per item that is
obtained by multiplying the unit price and quantity, the unit price shall
prevail and the total price per item will be corrected. If there is a
discrepancy between the Total Amount and the sum of the total price per item,
the sum of the total price per item shall prevail and the Total Amount will be
corrected.
4.6 Reverse Auction and Price Matching Option
Tata Power reserves the right to go for Reverse Auction (RA) for price
negotiation and discover the most competitive price on ARIBA portal, Tata
Power’s official e-tendering platform. This will be decided after techno-
commercial evaluation of the bids. Bidders need to give their acceptance with
the offer for participation in RA. Non-acceptance to participate in RA may
result in non-consideration of their bids, in case Tata Power decides to go
for RA.
Only those bidders who are techno-commercially qualified shall be eligible to
participate further in RA process. However, the original H1 bidder (whose
price bid is the highest post technocommercial evaluation) shall not be
allowed to participate in further RA process provided minimum three techno-
commercially qualified bids are available.
For case where more than one bidders have to be awarded (including Rate
Contract / Outline Agreement) Price Matching Option will be exercised. Volume
of job allocated to original competitive bidder will be more than bidder who
is chosen through Price Matching Option. Tata Power decision regarding work
sharing shall be final and no explanation OR clarification shall be given
regarding the same.
5.0 Award Decision
Tata Power will award the contract to the successful bidder whose bid has been
determined to be the lowest-evaluated responsive bid as per the Evaluation
Criterion mentioned at Clause 2.0. The Cost for the said calculation shall be
taken as the all-inclusive cost quoted by bidder in Priced Bid Format subject
to any corrections required in line with Clause 4.3 above. The decision to
place purchase order/Outline Agreement/ Rate Contact solely depends on Tata
Power on the cost competitiveness across multiple lots, quality, delivery and
bidder’s capacity, in addition to other factors that Tata Power may deem
relevant.
Tata Power reserves all the rights to award the contract to one or more
bidders so as to meet the delivery requirement or nullify the award decision
without assigning any reason thereof.
In case any supplier is found unsatisfactory during the delivery process, the
award will be cancelled and Tata Power reserves the right to award other
suppliers who are found fit.
5.1 Rate Contract / Outline Agreement
Rate Contract / Outline Agreement does not guarantee any assured business
volume in Rupees or Quantity. Quantities are only indicative and specified for
the purpose of readiness as per the request from Purchaser. Supplies shall be
only against Firm Purchase Orders placed as per the agreed terms and
conditions of Rate Contract / Outline Agreement. Purchaser shall be entitled
at its discretion to place firm order for such supplies on “As and When
Required Basis” without minimum take-off guarantee.
Property of Tata Power Not to be reproduced without prior written permission
of Tata Power
Page | 15
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
Rate Contract / Outline Agreement will have list of Items with Unit Rate and
applicable Taxes and Duties. There will be a cap on value for which order
which can be placed against the Rate Contract / Outline Agreement. Actual
quantity ordered for each line item may differ significantly from the
tentative quantity indicated in the Tender Document. One / few / all items of
Rate Contract / Outline Agreement can be ordered till the Cap Value is
reached.
6.0 Order of Preference/Contradiction:
In case of contradiction in any part of various documents in tender, following
shall prevail in order of preference:
1. Outline Agreement/Purchase Order (with Commercial conditions) 2. Special
Terms and conditions (if applicable) 3. General Terms and conditions 4.
Technical Specifications
In case there is a discrepancy in the BOQ mentioned in tender (to the extent
modified through subsequent Corrigendum, if any) and the bid submitted by any
bidder, the description as mentioned in the tender (to the extent modified
through subsequent Corrigendum, if any) shall prevail.
7.0 Ethics
Tata Power is an ethical organization and as a policy Tata Power lays emphasis
on ethical practices across its entire domain. Bidder should ensure that they
should abide by all the ethical norms and in no form either directly or
indirectly be involved in unethical practice.
Tata Power work practices are governed by the Tata Code of Conduct. Bidder is
request to refer Tata Code of Conduct Clause in General Terms and Conditions.
8.0 General Condition of Contract and Special Condition of Contracts
Any condition not mentioned above shall be applicable as per General Terms and
Conditions and Special Condition of Contracts attached along with this tender.
—XXX—
Property of Tata Power Not to be reproduced without prior written permission of Tata Power Page | 16
The Tata Power Company Ltd
Tender Reference: CC25VJS009
OPEN TENDER NOTIFICATION Document Date: 27th Apr 2024
Annexure 1 Schedule Of Items
Sr. no. Material / Service Short Text (as per SAP)
1
SWITCHGEAR,AIS INDOOR O/G VCB,11KV,
2
SWITCHGEAR,AIS INDOOR I/C VCB,11KV,
3
SWITCHGEAR,AIS INDOOR B/C VCB,11KV,
4
SWITCHGEAR,AIS INDOOR BUS PT,11KV,
5
SWGR PANEL 33KV 1X 1600A W/CBL I/O & BCU
6
GATEWAY,RTU PANEL,FOR DSS,PREWIRED,
7 Inst, test & Comms
Total
GST
Total Value including GST
Total Amount with taxes in Words
(All Values to be entered in Indian Rs.)
Estimated UoM
Quantity
Unit Rate
(Basic)
7 EA 1 EA 1 EA 1 EA 1 EA 1 EA 1 EA
Total
Property of Tata Power Not to be reproduced without prior written permission of Tata Power Page | 17
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
TECHNICAL SPECIFICATION
33KV INDOOR ICOG PANEL with BCPU RELAY
The Tata Pow er Company Ltd. Engineering Services ( ENSE) ,
Distribution Division, Senapati Bapat Marg,
Low er Parel, Mumbai 400013
M a ha ra sht ra
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
TECHNICAL SPECIFICATION COVER SHEET Document No: ENSE-DS-2036-R00
Document Title: SPECIFICATION of 33 kV INDOOR ICOG PANEL with BCPU relay
For tender
purpose
00
(ENSE-DS-
08/02/24 Y.M.M.
2036-R00)
Remarks Rev
No.
Date
Initials
Sign
Prepared By
A.V.P.
Initials
Sign
Checked By
R.M.B.
Initials
Sign
Approved and Issued By
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 2 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
CONTENTS
1. SCOPE
2. APPLICABLE STANDARDS
3. CLIMATIC CONDITIONS OF THE INSTALLATION
4. GENERAL TECHNICAL REQUIREMENTS
5. GENERAL CONSTRUCTIONS
6. NAME PLATE AND MARKING
7. TESTS
8. TYPE TEST CERTIFICATES
9. PRE-DISPATCH INSPECTION
10. INSPECTION AFTER RECEIPT AT STORES
11. GUARANTEE
12. PACKING AND TRANSPORT
13. TENDER SAMPLE
14. TRAINING
15. QUALITY CONTROL
16. TESTING FACILITIES
17. MANUFACTURING ACTIVITIES
`
18. SPARES, ACCESSORIES & TOOLS
19. DRAWINGS, DOCUMENTS
20. GUARANTEED TECHNICAL PARTICULARS
21. SCHEDULE OF DEVIATIONS
ANNEXURE-1, & 2
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
4 4 5 5 7 31 31 34 34 35 35 35 35 35 36 36 36 36 37 38 45
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 3 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
1.0 SCOPE
2.0
APPLICABLE STANDARDS
This specification covers the technical requirements of design, manufacture, testing at manufacturer’s works, packing, forwarding, supply and unloading at site/store and performance of 33kV, 1250 AMP VCB panels complete with all accessories. It is not the intent to specify completely herein all details of the equipments nevertheless the equipment shall be complete and operative in all respects and shall confirm to the highest standard of engineering, design and workmanship of International Standards/IEC. The scope also covers installation, testing, commissioning of 33KV panels at site along with SCADA interfacing and associated earthing, inter panel wiring. The bidder shall be responsible for engineering and functioning of the complete system, meeting the intent and requirement of this specification and data sheets. Bidder should depute project manager at site for monitoring and coordinating commissioning activity.
It is not the intent to specify completely herein all the details of tech
design and construction of material. However, the material shall conform to
practices consistent with sound environmental management and local statues. It
is also expected that equipment shall comply in all respects to high standards
of engineering, design and workmanship and shall be capable of performing in
continuous commercial operation in manner acceptable to the TATA POWER, who
will interpret the meanings of drawings and specification and shall have the
power to reject any work or material which, in his judgment is not in
accordance therewith. The offered material shall be complete with all
components necessary for their effective and trouble-free operation. Such
components shall be deemed to be within the scope of Bidder’s supply
irrespective of whether those are specifically brought out in this
specification and/or the commercial order or not.
Note: Bidder shall be OEM of 33kV ICOG Indoor Breaker Panel. The equipment
covered by this specification shall unless otherwise stated, be designed,
manufactured and tested in accordance with latest editions of the following
standards/IEC and shall conform to the regulations of local statutory
authorities.
a) IEC 60068-1:2013: Environmental testing – Part 1: General and guidance
b) IS 2705: Current Transformers
c) IS 3156: Voltage Transformers
d) IS 16227-1: Instrument Transformers
e) IEC 62271-200: High-voltage Switchgear and controlgear
f) IS 694: PVC insulated cables for working voltage up to and including 1100V
g) IS 2629: Recommended practice for Hot Dip Galvanizing of iron & Steel
h) IS 2633: Test for uniformity of Zinc Coating.
i) IEC 60445:2021: Identification of equipment terminals, conductor terminations and
conductors
j) IEC 62053-22: Static meter for active energy (Class 0.2s and 0.5s)
k) IEC 60255: Measuring Relays and Protection Equipment
l) IEC 60529: Degrees of Protection provided by enclosures (IP Code).
m) IEC 62271-100: HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR: Alternating
current circuit breakers.
n) IEC 62271-200: High voltage switchgear & control gear: Metal-Enclosed Switchgear
and Control gear.
o) IEC 62271-1: High voltage switchgear & control gear: Common specifications.
p) IEC 61010-1: Safety requirement for electrical equipment for measurement and
Laboratory use.
q) IEC 61850: Communication networks and systems for power utility automation (all
parts including
IEC 61850-8-1, IEC 61850-9-2).
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 4 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
CLIMATIC CONDITIONS OF 3.0 THE INSTALLATION
r) IEC 61588/IEEE 1588v2: Precision clock synchronization protocol for
networked measurement and control systems
s) IEC 62351: Power systems management and associated information exchange
Data and communications security.
t) IEC 60060 : High-voltage test techniques.
1 Maximum ambient temperature 2 Max. Daily average ambient temp 3 Min Ambient
Temperature 4 Maximum Relative Humidity 5 Minimum Relative Humidity 6 Average
No. of thunderstorm per annum
7 Average Annual Rainfall 8 Average No. of rainy days per annum 9 Rainy months
10 Altitude above MSL not exceeding 11 Average Air Pressure
43 deg.C 35 deg.C 07 deg.C 100% 40% 50
2380mm 115 June to Oct. 300 meters 29.6-inch Hg
Atmosphere is generally laden with mild acid and dust suspended during summer months and subjected to fog in winter months. The design of the equipment and accessories shall be suitable to withstand seismic forces corresponding to an acceleration of 0.1g.
GENERAL 4.0 TECHNICAL
REQUIREMENTS
Sr No.
1.0 1.1 1.2 1.3 1.4 1.5 1.6
1.7
1.8 1.9 1.10 1.11
1.12
2.0 2.1 2.2 2.3
2.4
Description
Requirement
SWITCHGEAR PANEL Architecture No. of Phases Rated Voltage Service Voltage
Rated Frequency Rated Lightning Impulse withstand
voltage One Minute Power Frequency Withstand
Voltage Rated short time withstand current Peak withstand current rating
Normal service condition Internal arc Protection
Degree of Protection Enclosure / Partitions / for meters, relay & BCU
BUS BAR Type Bus bar continuous rated current Bus bar material
Rated short time withstand current
Vacuum Insulated Metal Clad Three 36 kV 33 kV 50 Hz 170 kVp
70 kV rms
25 kA for 3 sec 62.5 kA Indoor IAC-A FLR as per IEC 62271-200, Shall withstand
25 kA for 1 sec. IP4X Enclosure IP2X Partitions IP5X or equivalent to
completely
protect against dust ingress.
Extensible on both sides 1250 A Copper with Silver / Tinned Coated
contacts 25 kA for 3 sec
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 5 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
2.5
Max.
permissible temperature normal Current
Date of Issue: 05/02/2024
rated The maximum permissible current temperature for bus bar shall be as per
IEC
3.0
CIRCUIT BREAKER FOR IC/OG (INCOMER AND OUTGOING FEEDER)
3.1
Application /Class
Indoor
3.2
Type of circuit
Vacuum (VCB)
3.3
No. of poles
3
3.4
Rated Voltage
36 kV rms
3.5
Rated Insulation Level
36 KV
3.6
Lighting impulse
170 kV peak
3.7
One minute power frequency withstand 70 kV rms
3.8
Rated frequency
50 Hz
3.9
Rates normal current
1250 A
3.10 Rated operating sequence
O-t-CO-T-CO (t=0.3sec, T= 3 min.)
3.11 Max. Spring Charging Time of Motor
10 sec
3.12 Max. Power consumption of Trip & close 100 W
coils
3.13 Rated load breaking current (sym)
25 kA rms
3.14 Rated short circuit withstand current
25 kA rms for 3 sec
3.15 Rated short circuit making current
62.5 kA peak
5.0
OPERATING AUXILIARY VOLTAGES
5.1
For Protection relays
220V DC
5.2
For Ant condensation Heaters
220V AC
5.3
Spring Charging Motor (Universal Motor) 230V AC
5.4
No. of spare auxiliary contacts with wring 8NO + 8 NC
6
VOLTAGE TRANSFORMER
6.1
Location
6.2
Type
6.3
Ratio
6.4
Core Details
i)
Accuracy class
ii)
Burden
Access from Front side of the panel and VT should be for incomer side
Plug In type, Dual ratio
33KV/3 / 110/3 -110/3
Core-I
Core-II
0.2
3P
50VA
50 VA
7 7.1 7.1.1 7.1.2 i)
CURRENT TRANSFORMER For Metering and Protection Ratio Burden & Class Core I
400 800 /5 -5 A 0.2S , 10VA; Isf < 5
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 6 of 47|
The Tata Power Company Ltd
ENSE-DS-2036-R00
ii)
Core II
7.3
For Differential Protection
i)
Ratio
ii)
Core- III
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
5P20, 10 VA Incomer 400-800/5 A PS, 10 VA
GENERAL 5.0 CONSTRUCTION
5.1
Switchgear
1. All supplied Units shall be fitted with engraved metallic logo of “Tata
Power” on the front side as per annexure.
2. The High Voltage Switchboard shall be metal-clad and shall comprise of
standard prefabricated, CRCA sheet steel units assembled to form a rigid,
freestanding, and deadfront structure. As a minimum, 2mm sheet steel shall be
used for all front and rear doors and covers, and 1.6mm sheet steel for inter-
panel partitions, Frame 3 mm, Removable Gland plate 3 mm. wherever required,
stiffeners shall be provided to increase stiffness of large size doors and
covers.
3. The switchboards shall be totally enclosed and vermin-proof. If necessary,
openings for natural ventilation shall be provided. These shall be louvered
and provided with wire mesh having opening less than 1mm. The enclosure shall
have complete protection against approach to live parts or contact with
internal moving parts.
4. Each unit of the switchgear shall have necessary internal sheet metal
barriers to form separate compartments for circuit breaker, bus bars,
instruments and relays, cable connections etc. Compartments for cable
connections shall allow cable termination and connection work with the
switchgear energised.
5. Independent pressure relief devices shall be provided for all HV
compartments, i.e. bus bar, cable and breaker compartments and each
compartment shall have type test certificate for withstanding internal arc
fault.
6. All identical equipment and corresponding parts shall be fully
interchangeable.
7. Safety barriers or shutters shall be provided to permit personnel to work
safely within an empty compartment with the bus bars energised. The shutters
should block the bus & cable compartments.
8. The opening of shutter shall be prevented when the breaker truck is racked
out & either main bus or cable compartment is energised. Electrical interlock
of cable side shutter & bus side shutter to be provided to prevent opening of
shutters when breaker is racked out.
9. The draw out carriage on the switchboard shall have three positions:
“Service”, “Test” and “Drawout” viz:
10. “Full in” or “Service” position – In this position both power and control
circuits shall be connected. This shall be the normal operating position of
the circuit breaker.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 7 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
11. “Test” position – The power contacts shall be disconnected in this position but the control connections shall not be disturbed, it shall be possible to close and trip the breakers in this position.
12. “Draw out” Position – both power and control circuits shall be disconnected in this position.
13. The circuit breaker shall be lockable in “service” and “test” positions. Automatic safety shutters shall be provided to ensure the inaccessibility of all live parts after the carriage is drawn out.
14. There shall be a distinct overall door for the breaker compartment, which can be closed with the carriage in draw out position and it shall be lockable type. All openings on the door shall be with a provision of padlock.
15. All circuit breaker modules of the same rating shall be inter-changeable.
Suitable interlocks shall be provided to prevent the following operations: ·
“Plugging in” or “drawing out” of a closed breaker. · “Plugging in” a breaker
with the earthing switch closed. · “Closing” of the earthing switch with the
breaker “plugged in”. · Pulling out the auxiliary circuit plug with the
breaker in the service position. · Pushing in the breaker to the service
position, with the auxiliary circuit plug not in position. · All operations
behind closed doors. · It should not be possible to open front door when
circuit breaker is closed in service position. · Mimic to be provided on front
fascia of panel. · The back door opening shall be possible only when cable is
in dead condition.
· Castle key interlock or mechanical interlock to be provided in such a way
that
for opening of back door castle key shall be required.
· Cable back charge indicating LED on front & rear side of panel is to be
provided.
16. All hardware shall be corrosion-resistant. All joints and connections of the panel members shall be made by zinc-passivated, or cadmium-plated, high- quality steel bolts, nuts and washers, secured against loosening.
17. Suitable removable type eyebolts shall be provided for the lifting of the
panel/shipping section. These bolts, when removed shall not leave any opening
in the panels.
18. Switch board shall be designed for IP 4X. The covers and doors should
only be opened when the part of main circuit contained in the compartment
being made accessible is dead. Partitions of metal-clad switchgear and control
gear shall be metallic and earthed. All the meters, detachable units of
relays, relays and BCPU shall be minimum IP5X (For Low voltage) or with an
equivalent provision to completely protect it against dust ingress.
19. The overall dimension should not exceed 3.0 M X 2 M x 2.8 M (DXWXH).
20. All foundation equipment, anchor bolts etc. including the supporting
channel shall be furnished by successful bidder along with despatch of panels.
The bottom plates of the panels shall be fitted with removable gland plates
not less than 3mm in thickness.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 8 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
21. Indicating instruments and meters shall be at a suitable height so that
the lettering on the display can be easily read. Control switches/push buttons
and relay resetting knobs shall be conveniently located for ease of operation.
The center lines of the switches push buttons and indicating lamps shall be
not less than 900 mm from the bottom of the panel. The centre lines of relays,
meters etc. shall be not less than 450 mm from the bottom of the panel
matched. Isolating switch fuse units shall be provided at the panel for
incoming AC and DC supplies. Push buttons shall be made of non-hygroscopic
material with shrouds. All other insulator shall also be made of non-
hygroscopic material.
22. All the HV design shall ensure conformity to IEC-62271-200 Appendix ‘A’
and must be Type tested for Internal Arc Test. It shall withstand 25 kA for 1
sec. The suppliers shall submit Type Test report from CPRI/ERDA accredited
laboratory to prove the above. Auxiliary and control equipments installed on
the panel shall be suitably protected against disruptive discharge from main
circuit. Bus bars shall be insulated with heat shrinkable insulating sleeves,
wherever bare conductor is employed.
23. All indicating lamps shall be of LED type and suitable for continuous
operation at 85% to 110% of their rated voltage LED and replaceable from the
front of the panel. The following indicating lamps with colour shall be
mounted over switchgear to indicate important status/alarm of breaker
· Breaker ON———————– Red · Breaker OFF———————- Green · DC Fail
—————————–Amber, · Space Heater not healthy —– Blue · Spring Charge——————–
Blue · Trip coil healthy—————— White · Auto trip—————————- Amber · Breaker in
service—————-Red · Breaker in Test——————–Service
PT back charge AC lamps should be provided R ph Healthy LED ——RED Y ph Healthy
LED ——YELLOW B ph Healthy LED ——BLUE
All colour caps shall be similar and interchangeable and all LEDs shall be of
same type and ratings. The LED lamps shall be furnished 20% in excess of
actual numbers required.
24. All grounding system, special tools and tackles, O&M manuals etc.
required for erection, operation, testing and maintenance of switch gear shall
be supplied within the quoted price.
25. The offered equipment shall be brand new with state of art technology and
proven field track record. No prototype equipment shall be offered. Vendor
shall ensure availability of spare parts and maintenance support services for
the offered equipment for at least for 15 years from the date of supply.
Vendor shall give a notice of at least one year to us before phasing out the
product/spares to enable the end user for placement of order for spares.
26. DC fail supervision relay (80) shall be provided on all control and relay
panels. DC fail annunciation shall be provided on each panel and loss of DC &
trip circuit fail alarm will be suitably annunciate at the panel as well as at
the SCADA. All the relays and
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 9 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
auxiliaries shall have DC auxiliary supply. Identification of components shall be in agreement with the indication on the wiring diagrams and drawings. If a component is of the plug-in type, an identification mark should be placed on the component and on the fixed part where it is to be plugged-in. Control cables are to be placed in trucking and it should be suitable to accommodate 20% wiring for future modifications. The disconnection type details are as follows
I)
Control supply in individual bay has to be distributed through MCBs of
suitable rating for individual control function like
· Protection Relay · Trip circuit shorting links · Close circuits · Spring charging circuit · Heating and lighting circuit
II)
MCB shall be rated for 10kA short circuit rating. It shall be quick make, quick
break, and independent manual type with trip free feature. The DC MCBs
and AC MCBs ratings shall be separately mentioned and the panel having
AC MCB of higher rating in lieu of DC MCB shall not be accepted. MCB shall
have the following
· Over current protection · ON/OFF Trip position indicators · Auxiliary contact block (wherever required)
27. Wherever CB contacts are to be multiplied, latch type relay shall be used for contact multiplication. Auxiliary contact multiplier relays shall be reputed make and selected on the basis of continuous Current carrying capacity and rated voltage. The fluctuation in voltage level shall be accounted for (+/-) 10% continuously.
28. Fuse failure relay and trip circuit supervision relay shall be suitably selected, considering burden and auxiliary voltage. External circuitry like compensating resistances will not be accepted. Separate Trip circuit supervision relay not required if it is part of numerical relay.
29. Each switchgear panel shall have 20% spare terminals. The terminals should be droppable type. All equipments mounted on front side of the panel shall have individual nameplates with equipment designation engraved. Alarms for Trip & non-trip should be separate. The termination links for cables shall be segregated in vertical plane. The bidder shall deliver to site completely assembled, wired, tested panels and only the interconnecting cables shall be connected at site. The Bay Control unit shall have the provision to communicate with the future data concentrator in IEC 60870 -5-103 VDW implementation without any additional hardware.
30. Feeder protection, and transformer differential protection relays shall be considered alongwith the switchgear panel.
31. CT, PT, TRIP, CLOSE CT links shall be different coloured coded for easily identification in breaker panels for all Incoming and Outgoing panels.
32. CT, PT, breaker name plate details shall be embossed on front, back side of breaker panel.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 10 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
33. Separate doors section shall be provided for cable and bus compartment
separately with handle arrangement.
34. LOTO lock arrangement shall be provided for Cable compartment, Bus
compartment and breaker compartment separately.
35. Cable back charge indication shall be provided on Front & Rear side of
Cable compartment.
36. The back door opening shall be possible only when cable is in dead
condition.
37. Castle key interlock or mechanical interlock to be provided in such a way
that for opening of back door castle key shall be required.
38. All TB’s in breaker control panel shall be DISCONNECTING Type
39. Extender of breaker plug is required which is used for breaker test in
removed position.
40. Hygrostat with space heaters to be provided in bus bar & cable
compartment. Hygrostat shall be communicable type with Temperature & humidity
data on central server through RS485 port.
41. All auxiliary relays like contact multiplier, Transformer Device relays,
Lock out relay shall be fast acting numerical relays with flag indication.
42. Status/indication of all draw out type power equipment’s to be made
available locally.
43. RYB Nomenclature/paint marking required on all Bus Bar and accessible
location.
44. Status contact shall be used for only one application in control
schematics.
45. Direct trip from relay BO to Trip coil also to be configured & indicated
in the drawing for all panels.
46. Cut off timer to be considered for spring charging motor. Soft drop off
timer required in CFC logic in series with Spring Charging Bl to keep the
Close permissive High till the time spring remains discharged.
47. Separate Status contact shall be used for relay Bl’s and local indication
Lamp.
48. Relay DC supply and Trip Circuit Supervision shall not be under the same
DC MCB. Separate MCB for relay to be provided.
49. The shutter mechanism in the breaker cubicle shall operate automatically
i.e. when the breaker truck is racked in or out. Shutters provided shall
comply with IP2X.
50. The bidder can also consider Centralised Protection System with
intelligent merging unit.
51. The bidder shall provide auxiliary relays for Transformer devices PRV
Main tank,
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 11 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
OSR OLTC, Buccholz, MOG Main tank, MOG OLTC, OTI, WTI
5.2 Circuit Breaker
a. Vacuum circuit breakers shall be used in the switchboard. Breaker transport
trolleys required for cassette mounted breakers shall be provided for each
switchboard.
b. The breaker shall be of class M2, E2 [w/o auto reclosing duty], and C2. The
breaker shall be encapsulated with no live part exposed within breaker
chamber.
c. Vacuum circuit breakers shall be designed to have low switching-over
voltage levels and with a long switching life. The interrupter shall be leak-
free.
d. The breakers shall have at least 4 normally open (NO) and 4 normally closed
(NC) spare auxiliary contacts for purchaser’s use. If these are not available,
auxiliary relays shall be used to multiply the auxiliary contacts of the
breakers.
e. The breakers shall have a motor-operated, spring-charged mechanism. It
shall also be possible to charge the springs manually. The closing spring
shall get re-charged (for subsequent closing) soon after a closing shot and
prior to breaker tripping. In case the limit switch fails to cut out the
spring charging motor with the springs fully charged, the motor shall be
automatically decoupled.
f. The control circuit shall be suitable for local as well as remote control.
Breakers shall be trip-free and shall have an anti-pumping device. The breaker
operating duty shall be O-0.3 sec-CO-3 min CO.
g. Operating Mechanism: Electric power operating mechanism shall be motor
wound spring charged stored energy type. However, manual-operating mechanism
may be of the spring charging stored energy type or the spring assisted type.
For circuit breakers with electrical power operating mechanism, provision
shall also be made for manual spring charging. Closing time of circuit
breakers with manual operating mechanism shall be independent of the speed of
the operating handle.
h. All stored energy operating mechanism shall be equipped with following
features.
· Failure of springs, vibrations or shocks shall not cause unintended
operation of breaker or prevent intended tripping operation.
· Closing of circuit breakers shall be prevented unless the spring is fully
charged. i. All electrical power operating mechanisms shall be suitable for
remote operation and
shall be equipped with following features.
· Provided with universal motor operable on AC or DC control supplies.
· Provided with emergency manual charging facility. The motor shall be
automatically, decoupled (mechanically) once the manual-charging handle is
inserted.
· Closing operation of circuit breaker shall automatically initiate charging
of the spring for the next closing operation without waiting for tripping of
circuit breaker.
· Closing operation shall be completed once the closing impulse is given and
the first device in the control scheme has responded even though the control
switch / Push Button is released provided no counter trip impulse is present.
j. Circuit breaker trip and closing coils in case of electrically operated
breakers and trip coil in ease of mechanically operated breakers and circuit
breaker indication shall be suitable for satisfactory operation on a control
supply system indicated in data sheets/job specification.
k. All circuit breakers shall be provided with mechanically operated emergency
trip device. This device shall be available on the front of the panel.
Mechanically operated ‘closing’ device shall be provided for all breakers.
However mechanical closing shall be inhibited for all circuit breakers in
service position.
l. The breakers shall be provided with anti-pumping & trip free provision.
Each breaker shall be also provided with an operation counter.
m. Line PT shall be mounted in a separate draw out carriage. In case of truck
mounted breaker, line PT shall be provided in a separate panel
n. The complete breaker assembly should have inter-changeability with breakers
of
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 12 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
identical ratings. o. Breaker shall be with temperature sensor for monitoring the temperature. p. The Limit switch base in breaker shall have better material having long life.
5.3 BUS BARS AND CONNECTORS
1. The switchboard shall comprise of 3-phase bus bars which shall extend
through all units of the switchgear line-up. The main bus bars shall have
uniform cross-section throughout their length, and shall be sized to carry
continuously the rated current specified in the data sheet.
2. Bus bars shall be of high conductivity electrolytic copper supported on
insulators made of non-hygroscopic, non-inflammable material with tracking
index equal to or more than that defined in Indian standards.
3. Bus bars shall be housed in a separate chamber and shall be accessible for
inspection. Wire guards shall be provided inside the enclosure to allow visual
inspection of bus bars, to avoid accidental contact when the cover is removed.
4. Both bus bars and the supports shall be adequately sized and braced to
withstand the specified short-circuit current for 1 second. Dynamic stresses
shall be calculated on the basis of the specified peak short-circuit current.
All bus supports shall be of non-carbonising material, resistant to acids and
alkalis.
5. Bus bars shall be insulated by using heat-shrinkable sleeves. The sleeves
shall be rated to withstand the system line-to-line voltage for 1 minute. This
shall be verified by a type test in which the line voltage will be applied
between the sleeved main bus bar and an aluminium foil wrapped closely around
the insulation over a length of at least 500mm.
6. All bus bar joints and all tap-off connections from the main horizontal
bus bars shall be provided with removable FRP shrouds.
7. Bus bars shall be prominently marked with red, yellow and blue colour
rings for easy phase identification at regular interval and at every power tap
off point.
8. The thermal design of the bus bars shall be based on installation of the
switchgear in poorly ventilated conditions. The cooling air volume shall take
into account only the bus bar enclosure.
9. The hot spot temperature for bus bars including joints at design ambient
temperature shall not be formed and shall be as per IEC for normal operating
conditions.
10. Only zinc passivated or cadmium plated high tensile strength steel bolts,
nuts and washers shall be used for all bus bar joints and supports.
11. The current rating as defined for switchboard and components in data
sheet/job specification are for design ambient temperature at site conditions
and for being inside the cubicle at fully loaded condition. The vendor shall
suitably derate the nominal rating to suit the above condition.
12. It shall be possible to earth all busbar sections in make-proof way.
5.4 CURRENT TRANSFORMER
1. Current transformers shall be cast-resin insulated. The primary and
secondary terminals shall be marked indelibly and easily approachable for
termination and testing etc.
2. Current transformers shall conform to IS: 2705. The short-time rating
shall be equal to that of the switchboard. They shall be mounted on the
stationary part of the switchboard. Protective CTs shall have an accuracy
class of 5P and an accuracy limit factor greater than 10. CTs for instruments
shall have an accuracy class of 0.2S and an instrument safety factor less than
5.0. One leg of the CTs shall be earthed.
3. Separate CT core of class PS shall be provided for Differential
protection. 4. All CTs shall be star connected. 5. Proper access to each set
of CTs shall be provided for repair / maintenance.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 13 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
6. The polarity of the primary and secondary windings of each transformer
shall be clearly indicated at the respective terminals and in addition labels
shall be fitted in a readily accessible position to indicate the ratio, class
duty of each transformer. The CT ratios shall be as per the details specified
in this specification’s; secondary shorting shall be done by black colour 2.5
sq. mm black wires.
7. The TTB should be provided for metering core with droppable links for
Energy meter requirement.
8. The TTB details are as follows: DAV make 50 Amps, Screw type, front
connection disconnecting type.
9. All the wires should be connected from top and bottom side and fixed top
mounted on door.
10. The CTs in the panels & Spare CTs shall be applied with silicone paint.
5.5 Voltage Transformer
1. Voltage transformers shall be cast-resin insulated. The voltage
transformers shall conform to IS: 3156. The voltage transformers shall be of
draw out type, and shall be provided with 4 pole miniature circuit breakers
with auxiliary contacts on the secondary side.
2. The draw out mechanism shall disconnect the VT from the bus bars. The
primary connection shall be disconnected before the VT become accessible.
Neutral point of the star connected VTs both on the primary and secondary
sides shall be earthed in test position also.
3. The VTs shall have an over-voltage factor of 1.9 times for 30 seconds, and
an accuracy class of 0.2 from 10% to 120% of normal voltage. VT selected shall
be compatible with system grounding.
4. The primary rated voltage shall be equal to V/~3 (phase and neutral). 5.
If not otherwise specified, the secondary voltage shall be 110 / Sq.rt of 3 V.
The
burden and class of accuracy shall be as specified in SLD. 6. A separate truck
should be provided for easy racking out/racking in the VT unit. 7. VPIS
2NO+2NC shall be present in each Outgoing feeder with 230V (+or-) 10% DC
aux voltage. 8. VT back charging lamp shall be provided on backside of
individual breaker panel. 9. The VTs in the panels & Spare VTs shall be
applied with silicone paint.
5.6 PROTECTION METERING & CONTROL
a) All the Bays (Incomer / Outgoing feeder switchgears) shall be provided with
Integrated Bay Control, Protection & metering Unit (BCPU).
b) The BCPUs shall communicate at station level on IEC 61850 protocols and
with local and existing remote master on IEC-104 protocol.
c) The BCPU shall support fibre-optic port (In and Out) for fault-tolerant
fibre optic ring or RJ-45 port for making star connection at switch. Also the
BCPU should support centralized parameterization and DR files downloading from
remote.
d) The BCPUs shall have capability to communicate with multiple masters on
independent network.
e) Web browsing feature should be available in BCPU. f) Provision of TTB to be
made with respect to future revenue meter installation. All the
metering CTs/PTs (Bus PT) to be wired up to TTB for revenue meter
installation. The meter size is 300X180X180. g) The 10 Nos. flag relays
combiflex RXME1 fast acting type to be provided in the 33KV panels for
transformer trouble identifications. h) Bidder to provide all necessary
configuration, testing, health monitoring tools (Hardware & Software) for the
proposed system. i) All droppable type links of Connect well (CDTTS) or elmax
to be provided in the
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 14 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
5.7 BCPU
panels. j) The Multi-Function Meters shall be Communicable to RTU on Rs485
MODBUS. This
can be eliminated by taking analog data from BCPU, current can be viewed in
the BCPU itself & huge cabling work can be avoided. Aux supply shall be 220 V
DC k) The buses to be supported with suitable insulators in order to avoid the
vibrations. l) Overall design should be such that the Bay Control function is
handled by the individual relays provided on the respective bays. m) Adequate
spare DI /DO provision of BCU should be there for future station miscellaneous
signals. n) Separate AC and DC MCB of 16 A to be provided for AC and DC. o)
Extendable Circuit Breaker Test Plug for test purpose length of 10 Mts p)
Locally copper bar to be installed in Control Panel as an extension of main
Earth Bus. All peripherals body earthing are connected to copper bar through
green color 2.5 sq mm wire. q) All CT Neutrals shall be grounded individually
to the Copper Strip
-
The offered BCPU shall have feeder protective elements having software algorithm based on Sampling of energized currents, analog to digital conversion and numerical handling.
-
The BCPU shall support over current / Earth fault protection function. (50/51 Ph & N) With definite Time or inverse time over current characteristic. Broken conductor function shall be provided
-
The inverse characteristics shall as per IEC which should include normal inverse, very inverse, Extremely inverse, long inverse curves and shall be soft ware selectable at site.
3a) BCPU should have minimum 2 nos. independent selectable setting groups.
3b) Circuit Breaker failure protection: BCPU should have a feature of circuit breaker failure protection, which generates another trip signal if the breaker fails to trip on fault, which can be wired to upstream breaker trip coil.
-
The BCPU shall have minimum 3 PT inputs and 4 CT inputs with ring type lugs termination facility, which can be used as 3 Nos. over current and 1 Earth fault.
-
BCPU shall have configurable binary input, which can be used to develop blocking based scheme and minimum five nos. of freely configurable output contacts. BCPU shall have adequate BIs and BOs required for Local and Remote monitoring and control. BCPU shall be modular & expandable to accommodate the required BIs and BOs for monitoring and Control. Separate contact outputs shall be used for remote control (SCADA open/Close) and Trip functions.
-
The Input shall have galvanic isolation. The trip out put contact should be capable of controlling the circuit breaker and shall be programmable for either hand reset or selfreset.
-
The BCPU enclosure shall be dust tight having degree of protection minimum as IP5X.
-
The BCPU must have facility for local settings and control through front keypad from relay itself. Relay should have facility of online relay setting i.e. it should be possible to alter setting without switching off breaker.
-
The offered BCPU shall have LCD display for monitoring and control, settings, status, measurement and fault data & indication. It shall also have Fixed function LEDs for fault
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 15 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
trip, relay healthy, control supply ON & Relay out of service.
-
BCPU shall have comprehensive self-diagnostic feature with indication of relay failure on relay front and alarm should be generated without tripping the feeder. However, while diagnostic algorithm runs, it must not interfere in the main protective relay circuit and allow working of main protective circuit continuously.
-
The BCPU shall support FDR (Fault disturbance Recording) for minimum 5 Nos. of latest fault trip records.
-
The BCPU shall support metering function (of CL0.2) for Energy (trivector parameters), and panel metering (Line currents, voltage, PF etc). The Energy Measurements shall be as per 3-wattmeter method. Bidder shall mention the accuracy of all analog measurements.
-
No separate earth bus shall be required for the BCPUs. It shall be possible to connect the relay earth to the common earth bus in the substation.
-
The offered relay must be immune to any kind of electromagnetic interference. Vendor to submit all related type test reports for the offered model along with the offer.
-
The relay should conform to the requirements of IS: 3231 / IEC60255 standards with respect to features/ construction/design etc.
-
The relay shall have built in communication facility for hooking the relay on MMI / upstream communication system. Manufacturer of relays having their own Substation Automation System shall be preferred. So that they shall be possible to provide a system solution also if required in future.
-
BCPU software should be supplied along with relays for viewing and downloading measurement, fault records and to carry out easy settings of relays locally.
-
BCPUs shall be suitable for flush mounting type and consisting of multifunctional draw out type modules.
-
BCPU should have direct connectivity to the Copper ground bus of the switchgear installation.
-
BCPU relay PCB’s and other electronic devices should be CONFORMAL coated.
-
BCPU should have minimum of 16 Binary Inputs and 10 Binary Output Channels for Substation and other Aux. Signals.
-
The BCPU for differential protection shall have minimum 3 PT inputs & 8 CT Inputs with ring type lugs termination facility. The BCPU Differential relay shall have biased current differential numerical protection with REF, and Directional O/C & E/F protection. It should include the following features:
Vector group compensation.
CT ratio correction.
Biased differential protection.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 16 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
High-set. Element of suitable setting range
2nd and 5th Harmonic restrains.
Transformer trouble alarm/ Trip e.g. Bucholz / PRD / Winding Temp / Oil Temp
etc. shall be taken as binary inputs in the differential BCPU as a common
input indicating “Transformer trouble”. However, auxiliary Flag relays shall
be provided independently for Transformer trouble and trip along with the
panel.
BCPU shall be suitable for both residually connected CT input as well as CBCT
input. BCPU shall have 2 CT inputs separately for NCT in 33 KV INCOMERS
- Protection against CT, PT transients, CT saturation blocking feature to be
provided in BCPU relay
Tata Power Approved Relays
Application Make-1 Siemens
Transformer 7UT61 Differential Relay
Make-2 ABB RET620
Make-3
Make-4 Areva
Schneider
——— MICOM P642
Feeder
7SJ66
, REF615/REF620
P3
protection 7SJ63
Relay
7.0 Communication software of BCPU
Relay
REF615
REF620
REF630
7SJ63 7SJ66 7UT61 P3
Make
ABB
ABB
ABB
Siemens Siemens Siemens Schneider
Software PCM 600 2.7 PCM600 2.6
PCM 600 2.6
PCM 600 2.5 PCM 600 2.6 P-Set 04.67.01 Digsi 4.92 Digsi 4.92 Easergy
——
Note: 1. All higher version software should be capable of communicating with old version relay or support should be provided interms of providing appropriate software/Firmware. For siemens relay the vendor should supply digsi software installed laptops as single laptop does not support multiple digsi version.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 17 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
1. HMI (Front Display):
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
1.1. The intuitive user interface and the various communication interfaces
allow easy control and monitoring of the switchgear units, simple and
comprehensive setting as well as access to readings of extensive recordings.
1.2. It shall be possible to equip the BCPU with a large HMI for local
control, visualization of single line diagrams with analog, alarms and
overview of service status (Breakers and Isolators).
1.3. The graphical display shall be easily configured by means of symbol
library.
1.4. The HMI shall include LEDs for status indication and at least 15
configurable LEDs for alarm indication.
1.5. The front display shall be able to work in harsh environment, and
temperature up to 70°C.
1.6. Vendor to deliver the HMI display, which shall not blacken out after in
use of the BCU life time.
2. Communication Ports:
2.1. A galvanic isolated front port shall be available for connection of a
personal computer for configuration.
2.2. At least 2 No. Fiber optic port IN and OUT, for fault tolerant fiber-
optic ring, RJ-45 port for making star connection at switch.
2.3. 2 Nos. IP ports are required and each port would have capability of
communicating minimum 8 no. of SCADA masters simultaneously.
3. Protocols:
3.1. IEC 61850-8-1, communication protocol shall be available. The BCPU shall
meet the IEC 61850 standard in every respect. Interoperability and
interchangeability and with other manufacture’s BCPU and tools will be
preferred.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 18 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
3.2. Data exchange is to be realized using IEC 61850 protocol with a redundant
managed switched Ethernet communication infrastructure.
3.3. All the BCPUs must be fully IEC 61850 compliant and must have the following features.
Have peer-to-peer communication using GOOSE messages (IEC 61850) for interlocking/ protection schemes.
Should be interoperable with third party IEC 61850 compliant devices
Should generate XML file for integration/engineering with vendor independent SCADA systems.
Should be directly connected to the fiber optic ring and communicating on IEC 61850 without the use of any gateways.
3.4. IEC61850 GOOSE messaging shall be used to transmit BI’s data quickly on the fiber optic LAN to reflex automation/protection schemes.
3.5. IEC 61850 support – Interoperability table shall be provided
4. Communication Architecture:
4.1. The BCPUs shall be connected on Fiber Optic 10/100 Mbps network with ring
topology and communicate with each other as well as Gateway using IEC61850
with GOOSE message.
4.2. The communication shall be made in fiber optic fault tolerant ring,
excluding the links between EM to individual bay BCPUs to switch wherein the
redundant connections are not envisaged, such that failure of one set of fiber
shall not affect the normal operation of the switchgear.
4.3. However failure of fiber shall be alarmed on Purchaser’s SCADA System.
Each fiber optic cable shall have minimum two (2) spare fibers.
4.3 BCPU’s should have front RJ45, serial usb or DB-9(RS 232) port for front
or direct communication with laptop. In case of DB-9 port vendor has to
provide RS232 to USB converter with BCPU’s.
5. Algorithm and Logic:
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 19 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
5.1. The BCPU shall be based on advanced and proven algorithms and an easy and
efficient upgrade of the BCPU functionality shall be possible.
5.2. The application software within the control/protection devices shall be
programmed in a functional block language.
5.3. The BCPU shall be provided with programmable logic for tripping and indications as well as a sufficient number of logic blocks and timers for user adaptation.
5.4. Command is always to be given in two stages: selection of the object and command for operation under all mode of operation except emergency operation. Final execution shall take place only when selection and command are actuated (Selectbefore-execute).
5.5. It shall also be possible to interconnect and derive input and output
signals, logic functions, using built-In functions, complex voltage and
currents, additional logics (AND-gates, OR gates and timers). (Multi-
activation of these additional functions should be possible).
5.6. A delay/integrator shall allow the pick-up and reset of binary signals to
be delayed before being displayed or used to control other functions.
5.7. Refer below matrix for controlling of the switchgear.
PANEL
REMOTE REMOTE LOCAL LOCAL
BCPU
REMOTE LOCAL REMOTE LOCAL
SCADA OPEN
Y N N N
SCADA CLOSE
Y N N N
BCPU OPEN
N Y N N
BCPU CLOSE
N Y N N
TNC OPEN
N N Y Y
TNC CLOSE
N N Y Y
6. Self-Supervision:
6.1. The BCPU shall have extensive self-supervision including analog channels.
6.2. Each BCPU 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.
6.3 Command execution timer (configurable) must be available for each control
level point. If the control Action is not completed within a specific BCPU
time, the command
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
should get cancelled (Run Time Command cancellation). In case of restoration of
communication links, power supply after failure, the Software along with hardware shall
be capable of automatically synchronizing with the remaining System without any
manual intervention.
7. Disturbance & Event Recording:
7.1. The protection system shall include an inbuilt disturbance recorder
function in each bay unit, which shall record
· 10 analog parameters including bay phase currents, voltages
· Minimum of 20 binary signals.
· Last 5 disturbances.
The sampling frequency of this disturbance recorder function shall be
selectable from 2400 Hz, 1200 Hz or 600 Hz at 50 Hz. The recording period
shall be at least 1.5 s at 2400 Hz. Minimum 10 trigger signals shall be
available.
7.2. The disturbance recorder buffer memory shall be of non-volatile type and
shall not require the use of batteries.
7.3. It should be possible to record the sum of selected analog currents.
Summation of currents to be confirmed on BCPU.
7.4. An event recorder that can handle up to 1000 time tagged events per
disturbance and that can record the last 5 disturbances shall also be
included. The event recorder buffer memory shall be of non-volatile type and
shall not require the use of batteries.
7.5. It shall be possible to retrieve the disturbance and event recorder
information based on Comtrade format from a remote location shall be made
available up to the gateway for further processing by Master.
7.6. All recorded disturbance data from BCPU shall be automatically uploaded
(event triggered or once per day) to a Purchaser’s SCADA Systems.
7.7. Automatic back up retrieval of relay database from remote should be
possible.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
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The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
8. Control and Monitoring:
8.1. The system shall incorporate the control, monitoring and protection
functions specified, self-monitoring, signalling and testing facilities,
measuring as well as memory functions, event recording and evaluation of
disturbance records.
8.2. The BCPUs shall accept direct CT / PT inputs and provide the following
minimum analog
Parameters at 0.2 class accuracy, · Phase & Neutral Currents
· Phase Voltages
· Active & Reactive Power
· Active & Reactive Energy (Import & Export)
· Power Factor
· Frequency
· Demand
8.3. Control of protection relay systems in or out of service shall be
available through BCPU
8.4. The operation shall depend on the conditions of other functions, such as
interlocking, synchro check (if any), etc.
8.5.The analog values acquired/calculated in bay control/protection/Energy
meter unit shall also be displayed locally on the BCPU HMI and in the SCADA
Systems. The abnormal values must be discarded if BCPU’s are used for analog
measurements. The analog values shall be updated every 1 second.
8.6.Level of Operation with control rights along with sequence of operation to
be clearly mentioned (Password Protection).
8.7. The commands are always to be executed in two stages: selection of the
object and command for operation under all mode of operation except emergency
operation.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
Final execution shall take place only when selection and command are actuated.
8.8.Command execution timer (user configurable) must be available for each Binary output. If the control action is not completed within a specified time, the command should get cancelled.
9. Power Supply:
9.1. Power supply modules from 48 to 250 V DC +/- 20 % shall be available 9.2. A redundant power supply module shall be available for the Gateway unit.
10. Time Synchronization:
10.1. Time synchronization will be effected through gateway.
10.2. Time synchronization interface: The unit shall be capable to synchronize
the internal RTC via Communication ports on IEEE 1588,
10.3. Timing Accuracy: The bay control shall time-tag event reports to an
absolute accuracy of 10 s or better Bay controls at different system locations
shall have the same absolute minimum timing accuracy.
10.4. BCPU shall capable to get synchronized from main as well as redundant
gateway.
11. BCPU parameter setting:
11.1. It shall be possible to access all protection and control (logic) BCPUs
for reading the parameters (settings) from the Purchaser’s SCADA System or
from a Central remote monitoring computer. The setting of parameters or the
activation of parameter sets shall only be allowed after entering a password.
11.2. Level Wise enabling of settings with User Rights should be incorporated
as per the Password protection.
12. Test Function:
12.1. Vendor to provide the detailed test procedure for testing the BCPU
functionalities using IEC61850, GOOSE Messaging and protection scheme
Rev No.
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
implemented/proposed. Vendor to ensure availability of the required Hardware and
software to test the above at the time of FAT and SAT.
12.2. The protection system shall support a test mode where it shall be possible to set or reset binary input Signals, signalling and tripping contacts individually or in groups.
12.3. All output relay contacts can be blocked via a setting and configuration program. Using the test function, it Shall be possible to set or reset signalling and tripping contacts individually.
12.4. A test sequencer for the local bay protection functions shall be part of the user interface program. Virtual Current, voltage and binary signals shall be programmable in a minimum of six different sequences to verify The correct operation of the respective functions and settings in the respective bay unit.
12.5. Vendor shall provide predefined saved cases for test sequence, during commissioning and for routine Maintenance.
12.6. Bidder should follow Standard BCPU IO wiring practice and Standard Alarm indication list. The same will be Shared and finalized during detail engineering.
10.0 Warranty
Vendor shall warrant that the equipment including software, hardware, firmware
and associated documentation are free of defects in material and workmanship
and from defects or faults in design, in so far as the equipment fails to meet
the requirements of this technical specification, for a period of 60 months
from the date of supply and 48 months from final acceptance by the purchaser
after completion of 30 days trouble free operation whichever is the earliest.
With respect to defects in equipment part, vendor’s liability is to make good
by replacing the faulty equipment. It is the responsibility of the vendor to
replace the faulty equipment within 7 working days. After replacement of the
faulty equipment, the purchaser will return parts that are defective to the
vendor. The vendor will cover the cost associated with the shipping of
defective or failed items during warranty period. The new equipment, parts
shall be delivered to the purchaser’s facility CIF (Cost, Insurance, and
Freight) free of charge. With respect to software, the purchaser will notify
the problem to the vendor, including a detailed description of the deficiency
and associated condition. Vendor
Rev No.
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
shall guide the purchaser for corrective action. If the same is not resolved, the
vendor shall depute his personnel to attend the same within 24 hours from the time
of reporting the problem. The system vendor will be fully responsible to resolve any
such deficiency reported by the purchaser.
With respect to third-party software and consumable parts supplied, the vendor shall
make reasonable effort to obtain the best warranties possible from the sub- vendor
thereof and assign to the purchaser any such warranties to the extent that such
warranties may be assigned to the purchaser. Vendor may consider longer
warranties than included in these specifications. Vendor shall extend all warranties
/guarantees to the purchaser, provided by sub-vendors, of duration longer than that
in this specification.
11.0 Upgrades and Modifications
- Vendor shall continuously keep the Purchaser informed of all Software and Hardware upgrades as & when these are released.
- Vendor shall supply upgrades of all installed software (both own and third party) for a period of five years from the date of system acceptance without any commercial implication.
- Vendor shall rectify all design defects and software bugs at no extra cost for a period of 5 years from the date of system acceptance.
- Vendor shall provide lifetime support (15 years) for the system, even if no upgrades are implemented. The system referred to above includes Vendor’s own as well as third party components.
- Vendor shall port the supplied software onto upgraded hardware (as per Vendor’s standard offerings) without additional Software License Fees.
12.0 Training The vendor shall include in his offer Training for Tata Power engineers. The training shall cover development, integration, installation and commissioning of both software & hardware components of the system. The training shall have two parts
- Training at Vendor’s / Collaborator’s Works(Before project commence) -5
weeks
- Training at Site
-5
weeks
manman-
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
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The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
5.8 AUXILIARY SWITCHES AND CONTACTORS
5.9 TERMINAL BLOCKS
5.10 ANTICONDENSATION HEATERS
5.11 INTERIOR LIGHTING AND
Bidder shall indicate per man-week rates for addition / deletion if any.
The vendor shall provide Classroom as well as hands-on training on the system.
All required training materials such as system catalogues, test instruments,
demo equipment, and simulation jigs, etc. shall be provided by the vendor. The
training shall equip the Purchaser’s engineers for installation,
commissioning, operation and postwarranty maintenance of hardware, software
(Operating System, Administration and Applications), protocols and all third
party systems.
Auxiliary switches shall be provided on all circuit breakers for local, remote
& SCADA indication, control and interlocking. With each circuit-breaker there
shall be supplied all necessary auxiliary switches, contactors and mechanisms
for indication, protection, metering, control, interlocking, supervisory and
other services. All such auxiliary switches shall be enclosed in dust free
housing. Not less than four spare auxiliary switch ways shall be provided with
each circuit breaker. All auxiliary switches shall be wired up to a terminal
board on the L.V panel of the switchgear whether they are in use or not in the
first instance and shall be arranged in the same sequence on all equipment.
a) The terminal blocks shall be 1100 V grade, 10 A rated, one piece moulded,
complete with insulated barriers, stud type terminals, washers, nuts and lock
nuts and identification strips. The terminal blocks for CT shall be of
disconnecting type. Markings on the terminal strips shall correspond to wire
numbers on the wiring diagrams. The terminal blocks shall be fully enclosed
with easily removable covers and made of moulded noninflammable plastic
material.
b) A minimum clearance of 250 mm between the first row of terminal blocks and
the associated cable and plate shall be ensured. Also the minimum clearance
between two rows of terminal blocks shall be 150mm.
c) All spare contacts and terminals of the panel mounted equipment and devices
shall be wired to terminal blocks. All the TB’s shall be of single Decker
type.
a) Acrylic cover for all the TTB’s to be provided.
a) Strip type space heaters of adequate capacity shall be provided in breaker
compartment, cable compartment and bus compartment in each panel to prevent
moisture condensation on the wiring and panel mounted equipment. Space heaters
shall be rated for 240 V, 1 phase, 50 Hz supply. Heaters inside the panels
shall not be mounted close to the wiring or any panel mounted equipment.
Heaters shall be complete with either miniature circuit breakers nor with
isolating switches, HRC fuse on phase and link on the neutral of the heater
supply.
b) An adjustable type hygrostat (0 to 100% Humidity) shall be provided in the
heater control circuit. The indication shall be provided for monitoring the
healthiness of Space heater.
c) Heater shall have humidity control and shall be arranged to cut off when
cubicle internal Humidity exceeds safe value. ‘Heater ON’ indication shall be
also provided. Also, door limit switch and internal lighting shall be provided
for LV compartment.
a) Each panel shall be provided with a compact fluorescent lighting fixture
rated for 240 V, 1 phase, 50 Hz supply for the interior illumination of the
panel during maintenance. The fitting shall be complete with switch-fuse unit
and the Switching of the fitting shall be controlled by
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
RECEPTACLES
the respective panel door switch.
Date of Issue: 05/02/2024
5.12 POWER AND CONTROL SUPPLIES
b) Each panel shall be provided with a 240 V, 1 Phase, 50 Hz, 15 A, 5 Pin
receptacle with switch. The receptacle with switch shall be mounted inside the
panel at a convenient location.
a) Each control panel shall be provided with necessary arrangement for
receiving, distributing, isolating and fusing of DC and AC supplies for
various control, signalling, lighting and space heater circuits. The incoming
and sub-circuits shall be separately provided with MCBs. Supply monitoring
arrangement shall be provided. Selection of the MCB ratings shall be such as
to ensure selective clearance of sub-circuit faults. Potential circuits for
relaying and metering shall also be protected by MCBs.
b) If auxiliary voltages other than those specified are required, then necessary arrangement shall be made by the bidder within the panel to obtain the desired voltages by providing step-down transformers and inverter/converter, etc. However it is desired that no other control voltage shall be prevalent in the panel.
c) All fuses shall be HRC cartridge type conforming to relevant standards, mounted on plug-in type fuse bases and cover with locking arrangement for fuse link. All accessible live connection to fuse bases shall be adequately shrouded. Fuses shall have operation indicators for indicating blown fuse condition. Fuse carrier base shall have imprints of the fuse rating and voltage.
5.13 PANEL WIRING
a) Panels shall be supplied completely wired internally to equipment and terminal blocks and ready for the Purchaser’s external cable connections at the terminal blocks. Panel wiring shall be securely supported, neatly arranged by lacing and tying, readily accessible and connected to equipment terminals and terminal blocks. Flame retardant, plastic wiring channels/troughs with strap on plastic covers shall be used for this purpose. When panels are arranged to be mounted adjacent to each other all inter-panel wiring and connections between panels shall be provided by the Bidder.
b) All wiring shall be carried out with 1100 V grade, single core stranded copper conductor wires with PVC insulation. Extra flexible wires shall be used for wiring of devices mounted on moving parts such as swinging panels and doors. The minimum size of the stranded copper conductor used for panel wiring shall be as follows
i) All circuits except CT and PT circuits: 2.5 mm2 per lead grey colour ii) CT circuits: 4 mm2 per lead with colour coded PT circuit : 2.5 mm2 colour coded
The terminals are marked with the terminal number in accordance with the schematics and terminal diagram. The terminals do not have any function designation and are of the tension spring, screw type and plug-in type for inter panel wiring.
c) Longitudinal troughs extending throughout the full length of the panels shall be provided for inter panel wiring, for AC and DC supplies, PT circuits, annunciator circuits and other common services .Interconnections to adjacent panels shall be brought out to a separate set of terminal blocks located near the slots or holes meant for taking the interconnecting wires. Arrangements shall permit easy inter-connections to adjacent panels at site and wires for this purpose shall be provided by the bidder looped and bunched properly inside the panels.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
d) If accidental short circuiting of certain wires is likely to result in malfunction of equipment, such as closing or tripping of a breaker or positive and negative wires, these wires shall not be terminated on adjacent terminal blocks. The unused instrument space on the front or rear of the panels shall be kept clear of wiring, to facilitate addition of devices without rewiring associated portion of the panels.
e) Wire terminations shall be made with soldieries crimping type of (ring type lugs for all CT & PT circuits and pin type lugs for other circuits) tinned copper lugs which firmly grip the conductor and insulation. Insulated sleeves shall be provided at all the wire terminations. Engraved core identification plastic ferrules, marked to correspond with panel wiring diagram shall be fitted at both ends of each wire. Ferrules shall fit tightly on the wires and shall not fall off when the wire is disconnected. Lock in type ferrule shall be provided. There should be provision of cable tray for laying of BCPU looping cable on the top of the switchgear LT compartment.
f) Bidder shall be solely responsible for looping all protection relays up to the BCU/BCPU or DC as per the requirement. Network cable required to communicate BCU/BCPUs with DC shall be under bidder’s scope. Looping and networking cable shall be CAT-5 type. The Bidder shall be solely responsible for the completeness and correctness of the internal wiring and for the proper functioning of the connected equipment. In case the cables are to be routed through trenches, necessary metal clad conduits shall be used.
g) Internal wiring to be connected to external equipment shall terminate on terminal blocks. The terminal blocks for CTs and VTs shall be provided with test links and isolating facilities. The CT terminal blocks shall be provided with short circuiting and earthing facilities. Change of CT cores should be possible by linking & delinking of terminals. Switchgear shall have 20% terminals as spare terminals in each panel &should be uniformly distributed in all the terminal blocks and shall be wired. Note: Two wires shall not be crimped on a single lug.
CT Ferrules shall have reference of CT Core and CT Taps
5.14 CABLES TERMINATION :
- There should be provision of connecting 1 no 33KV, 3CX400 sq. mm, XLPE Al AR cables. There should be proper approach for manpower to work inside the cable compartments of incomer and outgoing section. Ample space for connection for these cables shall be provided at the rear of the switchboards.
- In order to avoid accidental contact in the cable compartment while carrying out inspection by opening the rear cover, a removable expanded metal barrier shall be provided in the cable compartment.
- Unless otherwise specified, the power cable shall enter the switchboard from the bottom.
- Non-magnetic cable gland plates shall be provided for feeders wherever single core cables are used.
- The switchboard shall be supplied complete with supports for clamping outgoing and incoming cables. The head-room available between cable gland plate and terminal lugs shall not be less than 800 mm for 33 kV cables.
- In case the standard panel depth cannot accommodate the specified no. of cables, a rear extension panel of full height shall be provided. An earth strip shall also be brought to this extension panel.
- Unless otherwise specified, all power cables shall enter the switchgear from the bottom.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
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The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
- A rear viewing window shall be provided on the cable chamber rear cover to inspect cable connection without opening rear cover. The material of this window shall be the same as that used in breaker chamber.
5.15 LABELS
a) All equipment mounted on front and rear side as well as equipment mounted inside the panels shall be provided with individual labels with equipment designation engraved. Also on the top of each panel on front as well as rear side, large and bold nameplates shall be provided for circuit/ feeder designation. The labels shall be mounted directly below the respective equipment.
b) All front mounted equipment shall be provided, at the rear also with individual labels engraved with tag numbers corresponding to the ones shown in the panel internal wiring to facilitate easy tracing of the wiring.
c) Each lED and meter shall be prominently marked. All relays and other devices shall be clearly marked with manufacturer’s name, type, serial number and electrical rating data.
d) Labels both external &internal shall be made on non-rusting metal preferably Aluminium anodized one. Labels shall have white letters on black background. The lettering size shall be 6 mm for panel designation and minimum 3mm for device labels. The label designations shall be subject to the Purchaser’s approval.
e) Each switch shall bear clear inscription identifying its function e.g. ‘BREAKER’ ’52A’ etc. Similar Inscription shall also be provided on each device whose function is not otherwise defined. If any switch device doesn’t bear this inscription, separate name plate giving its function shall be provided for it. Switch shall also have clear inscription for each position indication e.g. ‘Trip-Neutral-Close’, ‘ON-OFF’, ‘R-Y-B-OFF’ ETC.
f) Section differentiation marking, bus differentiation and phase differentiation marking shall be provided a visible colour coding as per Indian coding will be preferred.
5.16 EARTHING
a) All panels shall be equipped with a separate earth bus securely fixed along with the inside base of panels. When several panels are mounted adjoining each other, the earth bus shall be made continuous and shall be bolted with two bolts. Provision shall be made for future extension of the earth bus. Provision shall be made on the earth bus bars of the end panels for connecting the same to the earthing grid.
b) An earthing conductor of 40×10 sq.mm Cu (minimum) shall be provided extending the whole length of switchgear and control gear to sustain the Rated short time withstand current. Each equipment mounted in the panel shall be directly earth pad to this earth bus by distinct connections. Bidder shall provide separate electronic earthing for all LED’s. Separate earth bus bar to be run along switchgear for protection earthing of relays and communication equipments and LEDs and shall be insulated from the frame. Two bolts shall be provided for connecting the earthing conductor.
c) All metallic cases of relays, instruments and other panel mounted equipments shall be connected to the earth bus by independent copper wires of size not less than 4.0 sq.mm for VT and CT secondary neutral or common lead shall be earthed at one place only, preferably at the terminal blocks where they enter the panel. The colour coding for earthing wires shall be given. Bidder shall provide separate electronic earthing for all IEDs.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 29 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
5.17 PAINTING
d) Looping of earth connections, which would result in loss of earth
connection to the other devices when the loop is broken, shall not be
permitted. However, looping of earth connections between equipment to provide
alternative paths to earth bus shall be provided.
a) Individual Earthing bus shall be extended from main earth bus in each
breaker panel for which all peripherals body earthing are connected through
green colour 2.5 sq.mm wire.
b) All live/energized equipment shall have body earth and reference ground via
copper strip or Copper wires of minimum 6 Sq mm.
All sheet steel work shall be phosphated in accordance with the IS: 6005 “Code
of practice for phosphating iron and steel”. It should follow the seven tank
process. Oil, grease, dirt and swarf shall be thoroughly removed by emulsion
cleaning. Rust and scale shall be removed by pickling with dilute acid
followed by washing with running water rinsing with a slightly alkaline hot
water and drying. After phosphate, thorough rinsing shall be carried out with
clean water followed by final rinsing with dilute dichromate solution and oven
drying. The phosphate coating shall be sealed with application of two coats of
ready mixed, stoved type zinc chromate primer. The first coat may be “flash
dried” while the second coat shall be stoved. Thereafter an established
painting procedure like electrostatic painting shall be followed for powder
coating the panel. The colour shade shall be RAL 7032 (Grey). Minimum paint
thickness of 120 micron is required.
5.18 GALVANIZING
a) All galvanizing shall be carried out by the hot dip process, in accordance with IS 2629/ ISO 1460 amended to date. However, high tensile steel nuts, bolts and spring washers shall be electro galvanized to service condition four. The zinc coating shall be smooth, continuous and uniform. It shall be free from acid spots and shall not scale, blister or be removable by handling or packing. There shall be no impurities in the zinc or additives to the galvanic bath, which could have a detrimental effect on the durability of the zinc coating.
b) After galvanizing no drilling or welding shall be performed on the galvanized parts of the equipment except that nuts may be threaded after galvanizing.
c) To avoid the formation of white rust, galvanized material shall be stacked during transport and stored in such a manner as to permit adequate ventilation. Sodium dichromate treatment shall be provided to avoid formation of white rust after hot dip galvanization. The galvanized steel shall be subjected to tests as per IS-2633/ BS 729 amended to date.
Approved Sub-vendor for bought out items: –
Sr. No 1
2
3 4 5 6
Items Epoxy Resin Cast C.T.
Epoxy Resin Cast P.T.
TTB TB HRC Fuse Space Heater
Approved sub vendor
Pragati
Make
/ECS/Huphen
Fabricator/Reputed as per OEM approved
Pragati
Make
/ECS/Huphen
Fabricator/Reputed as per OEM approved
DAV make & Model name is SSFS
Connectwell/Elmex
C&S / L&T /Equivalent
Girish Make
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
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The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
NAME PLATE AND MARKING:
All the components and operating devices of the switchgear shall be provided with durable and legible nameplates containing all technical parameters. Name plates shall be suitably embossed with” PO no. with date”, “PROPERTY OF Tata Power-‘ & “CODE NUMBER” along with the following information. A Danger plate of appropriate size shall also be provided on the enclosure.
6.0
NAME PLATE AND MARKING
a) Manufacturer’s Name b) Month and year of supply c) Type/Model d) Rated Voltage e) Rated current f) Service voltage g) System Frequency h) Rated Short time withstand current for 3 sec i) Rated Impulse withstand Voltage j) Degree of Protection k) Serial no.
CT & PT details to be mentioned at the rear cover of switchgear panel. The name plate of each functional unit shall be legible during normal service. The removable parts, if any shall have a separate nameplate with the data relating to the functional units they belong to, but this nameplate need only be legible when the removable parts is in removed position.
All the Routine, acceptance and Type tests shall be carried out in accordance with the relevant IS/IEC standards. All routine/acceptance tests shall be witnessed by the Purchaser/ his authorized representative. All the components should also be type tested as per the relevant standards. All meters and metering elements in BCU shall also be routine and type tested as per the relevant standards and shall further be tested at site by the successful bidder. For Type test of Numerical relays, control IEDs, and communication equipment, and Factory acceptance test, relevant IS/IEC has to be followed. Bidder shall also be responsible for conducting point to point testing of all gateway configurations on the site (SAT) after the installation. Bidder shall ensure integrated FAT of switchgear along with SCADA at one location along with RTU functional tests.
7.0
TESTS
Following tests shall be necessarily conducted on the switchgear in addition to the others specified in IS/IEC.
A) For Breaker panels
I) Type Tests 1.Test to verify the protection of person against dangerous
electrical effects. 2.Electromagnetic compatibility Tests of Auxiliary and
control circuits (Emission &
Immunity test) 3.Dielectric Test: Impulse & Power frequency 4.Internal Arc
Test
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 31 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
5.Measurement of the resistance of the main circuits 6.Short-time withstand
and Peak withstand current test 7.Verification of Degree of Protection. 8.
Verify the Insulation level of the equipment including at power frequency test
voltage
on auxiliary circuits. 9.Temperature Rise tests. 10. Short-circuit current
making and breaking tests 11. Mechanical operation test at ambient temperature
12. Test to prove the satisfactory operation of the included switching device
and
removable parts (Mechanical operation test) 13. Mechanical operation test II)
Routine Tests 1. Dielectric test on main circuit 2. Tests on auxiliary and
control circuits 3. Measurement of the resistance of the main circuit 4.
Dimensions and visual checks 5. Mechanical operation test 6. Partial Discharge
measurement
III) Acceptance Test 1. Dielectric test on main circuit 2. Tests on auxiliary and control circuits 3. Measurement of the resistance of the main circuit 4. Dimensions and visual checks 5. Mechanical operation test 6. Partial Discharge measurement
B) For Current Transformers
I) Type Tests a) Short time current Test b) Temperature rise Test. c)
Lightning impulse tests
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 32 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
d) Determination of errors or other characteristics according to the requirements of the appropriate designation or accuracy class.
II) Routine Tests
a) Verification of terminal marking and Polarity b) Power frequency dry
withstand tests on Primary Windings. c) Power frequency dry withstand tests on
Secondary windings d) Over Voltage inter-turn test. e) Partial Discharge
tests. f) Determination of errors or other characteristics according to the
requirements of the appropriate designation or accuracy class. g) For PS class
core Knee point voltage & Excitation current, Secondary winding resistance,
Turns ratio.
C) For Voltage Transformers
I) Type Tests a) Short time current Test b) Temperature rise Test. c)
Lightning impulse tests d) Determination of errors or other characteristics
according to the requirements of the appropriate designation or accuracy
class.
II) Routine Tests a) Verification of terminal marking and Polarity b) Power
frequency dry withstand tests on Primary Windings. c) Power frequency dry
withstand tests on Secondary windings d) Partial Discharge tests. e)
Determination of errors or other charterstics according to the requirements of
the appropriates designation or accuracy class.
For CTs & PTs routine test reports from the OEM to be provided.
D) For Relays
I) Type Tests for Numerical Relays/ Devices:
1. Dielectric Withstand Test: IEC60255-5 2. High Voltage Impulse Test, class
III: IEC 60255-5
(5 kV peak; 1.2/50 us; 0.5 J; 3 positive and 3 negative shots at interval of 5
sec.)
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 33 of 47|
The Tata Power Company Ltd
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
ENSE-DS-2036-R00
Date of Issue: 05/02/2024
3. DC Supply Interruption: IEC 60255-11 4. AC Ripple on DC Supply: IEC 60255-11 5. Voltage Dips and Short Interruptions: IEC 61000-4-11 6. High Frequency Disturbance: IEC 60255-22-1, class III 7. Fast Transient Disturbance: IEC 60255-22-4, class IV 8. Surge Withstand Capability: IEEE / ANSI C 37.90.1 (1989)
However, in case any type test is not carried out/carried out at In-house laboratories, the same shall be decided for acceptance as per the mutual agreement between the Purchaser and Bidder.
The bidder shall furnish the type test certificates for the tests as mentioned above as per the corresponding standards. All the tests shall be conducted at CPRI/ERDA laboratories as per the relevant standards. Type test should have been conducted in certified Test Laboratories during the period not exceeding 10 years from the date of opening the bid. In the event of any discrepancy in the test reports i.e. any test report not acceptable or any/all type tests (including additional type tests, if any) not carried out, same shall be carried out without any cost implication to TATA POWER LTD.
8.0
TYPE TEST CERTIFICATE
Type tests shall have been conducted in certified Test laboratories during the period not exceeding 10 years from the date of opening the bid. In case if type test conducted beyond 10 years then bidder to certify on letter head of parent OEM that no design change & no
manufacturing plant change occurred from type tested product.
In the event of any discrepancy in the test reports, i.e. any test report not acceptable or any/all type tests (including additional type tests, if any) not carried out, same shall be carried out without any cost implication to TATA POWER.
Bids without all type test report shall stand disqualified.
Equipment shall be subject to inspection by a duly authorized representative of the Purchaser. Inspection may be made at any stage of manufacture at the option of the purchaser and the equipment if found unsatisfactory as to workmanship or material is liable to rejection. The bidder shall grant free access to the places of manufacture to the Purchaser’s representatives at all times when the work is in progress. Inspection by the Purchaser or its authorized representatives shall not relieve the bidder of his obligation of furnishing equipment in accordance with the specifications. Material shall be dispatched after specific MDCC (Material Dispatch Clearance Certificate) is issued by the Purchaser. Following documents shall be sent along with material.
9.0
PRE-DISPATCH INSPECTION
a) Test reports b) MDCC issued by Tata power c) Invoice in duplicate d) Packing list e) Drawings & catalogue f) Hard copy of drawings g) Delivery Challan
Other Documents (as applicable)
All Document should be English Language
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 34 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
The material received at TATA POWER Store will be inspected for acceptance and shall be
INSPECTION
liable for rejection if found different from the reports of the pre-dispatch inspection and one
10.0 AFTER RECEIPT copy of the report shall be sent to Engineering department.
AT STORE
If any deviation or anomaly observed at this stage same need to be rectified by bidder at
bidders own cost at earliest.
11.0 GUARANTEE
Bidder shall stand guarantee towards design, materials, workmanship & quality
of process / manufacturing of items under this contract for due and intended
performance of the same, as an integrated product delivered under this
contract. In the event any defect is found by the Purchaser up to a period of
at least 48 months from the date of commissioning or 60 months from the date
of last supplies made under the contract whichever is earlier, Bidder shall be
liable to undertake to replace/rectify such defects at its own costs, within
mutually agreed time frame, and to the entire satisfaction of the Purchaser,
failing which the Purchaser will be at liberty to get it replaced/rectified at
Bidder’s risks and costs and recover all such expenses plus the Purchaser’s
own charges (@ 20% of expenses incurred), from the Bidder or from the ”
Security cum Performance Deposit” as the case may be. In case of GP failure,
BA shall report at site within 48 hours from intimation and arrange for
rectification of fault within a mutually agreed time. In case rectification at
site is not possible then alternative arrangement (replacement) to be made by
BA within 15 days of intimation of failure. Bidder shall further be
responsible for free replacement’ for another period of THREE years from the end of the guarantee period for anyLatent Defects’ if noticed and reported
by the Purchaser.
Bidder shall ensure that all material covered under this specification shall be prepared for
12.0
PACKING AND TRANSPORT
rail/road transport (local equipment) and be packed in such a manner as to protect it from damage in transit. No single use plastic to be used in packaging. The packaging material shall be
environmentally friendly & recyclable.
13.0 TENDER SAMPLE Not applicable.
14.0 TRAINING
The vendor shall include in his offer Training for Tata Power engineers. The training shall cover development, integration, installation and commissioning of both software & hardware components of the system. The training shall have two parts
Training at Vendor’s / Collaborator’s Works(Before project commence)- 5 man- weeks
Training at Site
– 10 man-weeks
Bidder shall indicate per man-week rates for addition / deletion if any.
The vendor shall provide Classroom as well as hands-on training on the system. All
required training
materials such as system catalogs, test instruments, demo
equipment, and simulation jigs, etc. shall be provided by the vendor. The training shall
equip the Purchaser’s engineers for installation, commissioning, operation and post-
warranty maintenance of hardware, software (Operating System, Administration and
Applications), protocols and all third party systems.
Rev No.
Prepared By & Date Yash M. Mane
R00 05/02/24
Checked By & Date Ajay V. Potdar
05/02/24
Approved for Issue By & Date
Ravindra M. Bhanage
05/02/24 Page 35 of 47|
The Tata Power Company Ltd ENSE-DS-2036-R00
TECHNICAL SPECIFICATION OF 33kV INDOOR ICOG PANEL with BCPU relay
Date of Issue: 05/02/2024
15.0
QUALITY CONTROL
MINIMUM 16.0 TESTING
FACILITIES
The bidder shall submit with the offer, assurance plan indicating the various stages of inspection, the tests and checks which will be carried out