BIDDING INSTRUCTIONS FOR SEALED BIDS
Sealed bids will be accepted at the Grand River Dam Authority Administrative Headquarters located
at 226 West Dwain Willis Avenue, Vinita, Oklahoma. Bids received after the bid opening time and
date will not be opened or considered.
RFQ or RFP Number:
Bid Opening Time & Date:
20602
06/14/2016
2:00 PM CT
Description: Autotransformer for GRDA System
Contracting & Acquisitions Agent: Monica Fowler
Bids must be enclosed in a sealed envelope or package and addressed as follows:
PURCHASING UNIT
SEALED BID #
20602
GRAND RIVER DAM AUTHORITY
226 WEST DWAIN WILLIS AVE
VINITA, OK 74301
Express Mail/Overnight packages must also be addressed as above.
Bids not addressed as instructed above negate the confidentiality of the sealed bid and, therefore, will
be rejected and returned to the bidder without being considered.
All bids responses shall be typewritten or handwritten in ink, and any corrections to bids shall be
initialed in ink. Bids and proposals submitted in pencil will not be accepted.
All bids and proposals shall include an original signature of the bidder and shall be accompanied by a
properly executed non-collusion affidavit with original signatures and notary seal.
Bid responses are to include payment terms and delivery information. Bids and proposals shall be
quoted FOB: Destination/Freight Allowed unless stated otherwise within the Request for Quote. All
packaging, handling, shipping and delivery charges shall be included in the unit price quoted for each
line item. No exceptions will be granted unless approved by the guidelines of the Chief Financial
Officer or designee.
Fax or e-mail responses will not be accepted for this requirement.
Bidders opting to decline the bid offering are requested to submit a response with a brief explanation.
Grand River Dam Authority is an agency of the State of Oklahoma, fully supported by customer revenues instead of taxes.
Administrative Headquarters • 226 West Dwain Willis Avenue • Vinita, Oklahoma 74301 • Phone: 918-256-5545 • Fax: 918-256-1051
GRDA Finance Form 005 (10-2006)
REQUEST FOR QUOTE # 20602
RFQ #
20602
ENG
Quotation Due By:
Bid Due Time:
VENDOR INFO:
06/14/2016
2:00:00 PM
VENDOR #:
99999.00
NAME:
CONTACT:
ADDRESS 1:
ADDRESS 2:
CITY:
STATE:
ZIP:
EMAIL:
PHONE:
NOTE:
FAX:
REPLY TO:
Monica Fowler
PURCHASING DEPARTMENT
Grand River Dam Authority
226 W DWAIN WILLIS AVE
PO BOX 409
VINITA OK 74301
PHONE:
FAX:
EMAIL:
405-297-9963 x4650
405-840-1390
mfowler@grda.com
1.The bid opening date for this RFQ is June 14, 2016. Each bid response must be received by 2:00 PM Central Time so it
can be recorded as received prior to the bid opening time.
2.The outside envelope for each bid must be marked as "Sealed Bid No. 20602". See instructions on the Sealed Bid
cover sheet.
3.A completed non-collusion affidavit is required and must be submitted with your bid.
4.This form must be signed by an authorized representative of your company in the space provided in the lower right
hand corner of this form.
5.The award to the successful bidder will be based on "best value" bid received that meets the specifications listed below
and the requirements herein. Preference may be given to E-pay vendors if analysis estimates that such appears to result
in a lower cost to GRDA.
6.The brand names, model(s), part number(s) provided herein are for comparable quality and identification purposes
only and equivalent bids may be submitted.
7.GRDA will take into consideration past performance and ability to meet delivery deadlines in the evaluation.
Bidders should list the cost to provide these units:
1) April 15, 2017
2) By the bidder's optimum delivery date.
Bidders should specify their optimum delivery date in their bid response.
****** Read the General Bidding Instructions attached to this RFQ for further instructions.******
GRDA Visa Payment
GRDA provides a Visa payment program which invoices payment by a secure Visa account number assigned to the
supplier after award of contract. Notification of payments and required invoice information are issued to your designated
Accounts Receivable contact by e-mail remittance payment.
Preference may be shown during the evaluation process to bidders that agree to accept the Visa payment of invoices. To
learn more about the benefits of the Visa payment program, and to obtain answers to FAQ, click or copy and paste the
following URL into your browser: www.bankofamerica.com/epayablesvendors.
Will accept payment by Visa: Yes ____ No ____ (check one)
Visa acceptance signature: _________________________
Designated Accounts Receivable Contact for Visa remittance advices:
Name: __________________________
REQUEST FOR QUOTE # 20602
Phone: __________________________
Email: __________________________
LINE
ITEM
1
DESCRIPTION
Transformer: 90/120/150/168 MVA, 161/69/13.2 kV,
autotransformer, with LTC per the attached
specifications.
NUMBER OF
UNITS
UNIT OF
MEASURE
1.0
EACH
UNIT
PRICE
LINE
COST
LEAD TIME
Unit Price for delivery by: April 15,2017
__________
Line Cost for delivery by: April 15,2017
__________
Unit Price for delivery by the bidder's optimum date.
_______________
Line Cost for delivery by the bidders optimum date.
________________
Bidders optimum delivery date _______________
GRDA Item # 043-1077-000-000
NOTE: All prices must be quoted FOB: Destination. All freight
charges to delivery point must be included in the unit price
quoted for each line item. All packaging, handling, delivery and
any other surcharges must also be included in the price quoted
for each line item.
PAYMENT TERMS:
QUOTE EXPIRATION DATE:
QUOTATION NUMBER:
QUOTED BY (please print):
SHIP TO:
Grand River Dam Authority
TRANSMISSION & ENGINEERING HDQTRS
635 HWY 69A
PO Box 1128
PRYOR OK 74362
COMPANY NAME:
SIGNATURE:
DATE OF QUOTE:
THIS IS NOT AN ORDER. We would be pleased to receive your quotation for furnishing the above. This form must be completed in full (including signature) and
returned by the due date above. You may attach additional pages if necessary. If attached, the Non-Collusion form must be completed and returned with your quotation.
NO PARTIAL SHIPMENTS OR PARTIAL PAYMENTS WILL BE ALLOWED WITHOUT PRIOR APPROVAL.
All articles purchased hereunder shall be in accordance with the Bidding Procedures and General Terms & Conditions contained on the attached sheets.
__________
GENERAL TERMS AND CONDITIONS
Any contract or purchase order (PO) issued by the Grand River Dam Authority (GRDA) is expressly conditioned upon Seller’s assent to these
terms and conditions. Any order issued or filled by Seller shall be deemed to constitute Seller’s assent to these terms and conditions. GRDA
must give its express written consent to all additional terms submitted by Seller and all modified terms proposed by Seller.
1.
Email, mail, or deliver all invoices or correspondence pertaining to the payment of this P O / C o n t r a c t to: Accounts Payable
Department at ap@grda.com or Grand River Dam Authority, P.O. Box 409, 226 West Dwain Willis Avenue, Vinita, Oklahoma 74301.
Seller shall provide an invoice which is in accordance with the terms of the appropriate PO/Contract and applicable state or federal
statutes, including but not limited to such documentation as may be required to demonstrate that the task has been achieved.
Seller shall submit invoices accompanied by complete s u p p o r t i n g d o c u m e n t a t i o n f o r shipping c o s t s . If shipment is not made
by routing instructions as specified on the face of this PO/Contract, GRDA has the right to deduct any excess transportation charges
resulting therefrom. Copy of original freight bill must be supplied for payment if freight charge is in excess of $100.00. Time, in
connection with any discount offered, will be computed from date of delivery of items or services, or from date the correct invoice is
received at GRDA Headquarters in Vinita, Oklahoma, whichever period of time is the later date. No Oklahoma State Sales or Use
Tax shall be paid by GRDA.
2.
GRDA has the right to inspect articles, materials, and supplies before and during manufacture and upon arrival at destination and to
return for full credit and/or refund, at Seller’s sole risk and expense, including all transportation and storage charges, all items found
defective or furnished contrary to instructions and/or specifications contained herein.
3.
In case of default by Seller, GRDA may procure the items or services from other sources. Seller agrees to be responsible for any
excess cost occasioned thereby; provided, that if necessity requires the use of items not conforming to specifications, they may be
accepted, and payment made at a proper reduction in price. Notwithstanding anything herein to the contrary, GRDA reserves the
right to terminate this PO/Contract for its convenience. In the event of such termination, GRDA shall pay and Seller shall accept the
reasonable value of all work performed and items delivered by Seller up through the effective date of such termination.
4.
Seller represents and warrants that all items and/or services furnished under this PO/Contract will (a) conform to the specifications,
drawings, samples or other description furnished by GRDA, or any revisions thereof;(b) be merchantable of good material and free
from defect in workmanship, material, and design; (c) be fit and sufficient for the purpose intended; (d) satisfy any performance
guarantee requirements as specified herein by GRDA; (e) be free and clear of all liens, security interests or other encumbrances; (f) not
infringe or misappropriate any third party’s patent, copyright, trademark, or intellectual property rights. In the event the items and/or
services purchased hereunder do not meet the warranty specified hereinabove, Seller shall promptly repair or replace any defective item
at its expense, or re-perform any necessary services, and shall hold GRDA harmless from all costs and expenses incurred due to said
defective item or performance of services, including the cost for removing any part or product to be repaired or replaced, as
well as transportation and installation charges in connection with the repair, replacement or servicing of any parts or equipment. Seller
further agrees that the manufacturer’s warranty and guarantee of the items purchased hereunder extended to Seller shall extend to
GRDA. These warranties are cumulative and in addition to all other warranties provided by law.
5.
Seller shall indemnify, defend, and hold harmless GRDA and its officers, directors, employees, and agents, from and against all
liabilities, judgments, damages, claims, suits, injuries, losses, and expenses, including attorney fees, arising out of or resulting in
any way from: (a) any act or omission of Seller or Seller’s officers, directors, employees, subcontractors, and agents; (b) all liens
or claims in any way related to the items or services furnished by Sell er ; (c) all patent, trademark or copyright infringement or alleged
infringement, except where strict compliance with the specifications prescribed by GRDA is the sole basis of the infringement or alleged
infringement; (d) defects in the items or services furnished by Seller; or (e) Seller’s failure to comply with any of these General Terms
and Conditions. This indemnity obligation shall be in addition to the warranty obligations of Seller.
6.
When doing work or providing services on GRDA property seller shall, before any items are shipped and/or any services are
commenced, provide GRDA with certificates evidencing that the following minimum insurance will remain in force until Seller’s
obligations are completed: (a) Workers’ Compensation Insurance, including Employer’s Liability Insurance, in accordance with the laws
of the state in which Seller may be required to pay compensation; (b) Commercial General Liability Insurance with limits no less than
$1,000,000 f or e ac h oc c ur r en c e and $2,000,000 in the aggregate, unless otherwise specified within the solicitation documents; and
(c) if Seller will use or provide for the use of motor vehicles in furnishing items and/or services under this PO/Contract, automobile insurance
covering all liabilities for personal injury and property damage arising from the use of such vehicles, with a limit of no less than $1,000,000.
7.
Seller shall not assign or subcontract any of its rights or obligations under this PO/Contract without GRDA’s prior written consent. No
assignment shall relieve Seller of its obligations hereunder.
8.
Service Contracts: By submitting a bid for services, the Bidder certifies that it, and any proposed Subcontractors, are in compliance with
25 O.S. § 1313 and participate in the Status Verification System. The Supplier/Contractor/Consultant/Construction Manager/etc. certifies
that it and all proposed Subcontractors, whether known or unknown at the time a contract is executed or awarded, are in compliance
with 25 O.S. § 1313 and participate in the Status Verification System. The Status Verification System is defined in 25 O.S.
§ 1312 and includes, but is not limited to, the free Employment Verification Program (E-Verify) available at www.dhs.gov/E-Verify. This
shall remain in effect through the entire term, including all renewal periods, of the Contract. The State may request verification of
compliance for any Seller or Subcontractor. Should the State suspect or find the Seller or any of its Subcontractors are not in compliance,
the State may pursue any and all remedies allowed by law, including, but not limited to: suspension of work, termination of the Contract
for default, and suspension or debarment of the Seller. All costs necessary to verify compliance are the responsibility of the Seller.
9.
All Items shipped pursuant to this PO/Contract will conform to all municipal, state and federal laws, ordinances and regulations, and
Seller will defend and save harmless GRDA from loss, costs or damage by reason of any actual or alleged violation thereof.
10. GRDA hereby notifies Seller that Seller must comply, and by acceptance of this PO/Contract, Seller represents that it has complied with,
and will continue to comply with, all applicable federal, state and local laws, regulations or orders.
11. This PO/Contract shall be interpreted and construed in accordance with the laws of the State of Oklahoma.
12. AUDIT RIGHTS. Seller/Contractor will, at all times during the term of this PO/Contract and for a period of five (5) years after the
completion of this PO/Contract, maintain and make available for inspection and audit by GRDA and/or the Oklahoma State Auditor, all
books, supporting documents, accounting procedures, practices, and all other items relevant to the PO/Contract.
Grand River Dam Authority is an agency of the State of Oklahoma.
Administrative Headquarters • 226 West Dwain Willis Avenue • Vinita, Oklahoma 74301 • Phone: 918-256-5545 • Fax: 918-256-1051
GRDA Finance Form 001 (Revised 01-22-2016)
PROPOSAL TO THE
GRAND RIVER DAM AUTHORITY
FOR PURCHASE OF
90 MVA 161/69/13.2 KV Autotransformer
Bidder:
Business Address: Street No.
City
State
Zip Code
Telephone Number ___________________________________
Fax Number _________________________________________
E-Mail
_________________________________________
Date:
The Bidder named above hereby tenders his bid and declares that the only person or persons
interested in this proposal is or are named above; that the bid is made without collusion with any
other Bidder and is in all respects without collusion or fraud. The Bidder further declares he has
examined the specifications and has read the attached INSTRUCTIONS TO BIDDERS for the
Purchase of a 90 MVA, 161/69/13.2 KV Autotransformer and agrees to furnish all the
materials necessary or proper on the terms, and under the conditions set forth therein and in the
specifications, and to accept in full payment the firm lump sum bid listed below:
$
, Total in Writing:
Dollars.
Cost Breakdown:
Cost of the autotransformer, delivered to the specified location: $
Cost adder for Supply Contract Bond if required per section VIII: $
Total Autotransformer Cost Quoted: $
The autotransformer will be delivered
weeks after receipt of order.
Bidder lists the following similar autotransformers produced within the last two years, including
companies, contact names, and phone numbers for references:
Bidder shall include the following with his bid submittal:
1.
A scaled drawing showing the dimensions of quoted unit.
2.
If this is not a firm bid, identification of any adjustable costs along with itemized
weights or quantities that are affected by the adjustments.
3.
If this is not a firm bid, identification of the adjustment factors and values that
will be used to apply to the items in #2 above.
4.
If this is not a firm bid, identification of the percentage of the bid total that is
material related and the percentage that is labor related (for estimating cost
adjustments).
Signed:______________________________
______________________________
______________________________
______________________________
(Seal)
2
Quotation Data Entry Sheet
90 MVA 161/69/13.2 KV Autotransformer
Bidding Company
Brand of Autotransformer Quoted
(Manufacturer)
Location of Manufacturing Plant
Losses:
No Load Losses (kW)
Load Losses (kW)
Auxiliary Equipment Power (kW)
55ºC Autotransformer Rating:
(ONAN/ONAF/ONAF) MVA
65ºC Autotransformer Rating: (max MVA
value)
Tertiary Rating (kVA)
Impedance (%) at 90 MVA base
161 kV to 69 kV
161 kV to 13.2 KV
69 kV to 13.2 kV
Warranty:
Months after receipt by GRDA
Months after energization
Location for warranty work to be done
Weights (lb):
Core and Coils
Tank and Fittings
Liquid (oil)
Total Installed Weight
Shipping Weight (largest piece)
Oil (gal)
Dimensions (inches)
Height Overall
Length
Depth
Shipping Height
Base Dimension: (Width x Depth)
Efficiency: (%)
Full Load
75% load
50% load
25% load
Regulation: (%)
0.80 Power Factor
1.0 Power Factor
Sound Level (dB)
3
Bushings: (Manufacturer)
High voltage (161 kV)
Low voltage (69 kV)
Tertiary Voltage (25 kV)
Surge Arrestors: (Manufacturer)
High voltage
Low voltage
Tertiary Voltage
LTC Manufacturer and Model
Cooling Equipment:
Number of Radiators
Number of Fans, First Stage
Number of Fans, Second Stage
Is a Payment Schedule Required? (Yes/No)
Payment Schedule: (Provide % values for only
those that apply)
At Receipt of Order
At Submission of Approval Drawings
At Receipt of Key Materials
At Completion of Core
At Completion of Final Assembly
At Completion of Pre-Delivery Testing
At Shipment
At Receipt by GRDA
Receipt of Drawings by GRDA (weeks ARO)
Delivery to FOB Location: (weeks ARO)
Accepts Liquidated Damages Clause (Yes/No)
Is a FIRM price bid (Yes/No)
Field Service Representative Daily Costs (in
excess of original 5 days required)
4
EXCEPTION STATEMENT
This part of the proposal must be completed even if no exceptions are stated.
State only the EXCEPTIONS. Do not include comments and/or clarifications, which may be shown by
attachments to the Proposal.
EXCEPTIONS (If no exceptions, state “NONE”; provide additional pages if needed).
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
5
NON-COLLUSION AFFIDAVIT
(To Accompany Bid Proposal)
STATE OF ______________________)
) SS
COUNTY OF ____________________)
________________________________________, of lawful age, being first duly sworn, on oath says:
1. (S)He is the duly authorized agent of ______________________, the Bidder submitting the
competitive bid which is attached to this statement, for the purpose of certifying the facts
pertaining to the existence of collusion among Bidders and between Bidders and state officials or
employees, as well as facts pertaining to the giving or offering of things of value to government
personnel in return for special consideration in the letting of any Contract pursuant to the bid to
which this statement is attached;
2. (S)He is fully aware of the facts and circumstances surrounding the making of the bid to which
this statement is attached and has been personally and directly involved in the proceedings
leading to the submission of such bid; and
3. Neither the Bidder nor anyone subject to the Bidder’s direction or control has been a party:
a. to any collusion among Bidders in restraint of freedom of competition by agreement to bid at
a fixed price or to refrain from bidding;
b. to any collusion with any state official or employee as to quantity, quality or price in the
prospective Contract, or as to any other terms of such prospective Contract; nor
c. in any discussions between Bidders and any state official concerning exchange of money or
other thing of value for special consideration in the letting of a Contract.
4. The Bidder further certifies that no person who has been involved in any manner in the
development of that Contract while employed by the State of Oklahoma shall be employed to
fulfill any of the services provided for under said Contract.
___________________________________
Signature
_________________________________
Date
___________________________________
Printed Name
_________________________________
Title
_________________________________
Agent
Subscribed and sworn to before me this _______date of ____________, 2016.
______________________________
Notary Public
(Seal)
My Commission Expires:
________________________________
6
GENERAL BIDDING INSTRUCTIONS
FOR SEALED BIDS
GRAND RIVER DAM AUTHORITY
1. Bids shall be opened by the Purchasing Unit at the Grand River Dam Authority (hereinafter
referred to as “GRDA” or “the Authority”) Administrative Headquarters, 226 West Dwain Willis
Avenue, Vinita, Oklahoma 74301 on the date (and time, if applicable) shown on the attached
RFQ or RFP form. Bids shall be in conformity with these and any additional instructions to
bidders and shall be submitted on GRDA’s form. The RFQ (Request for Quote) or RFP
(Request for Proposal) form must be completed in full and signed by the bidder. If your bid
response necessitates additional space, you may attach additional pages; however, the RFQ or
RFP form shall be completed, signed and reference the additional pages. All bid responses shall
be typewritten or handwritten in ink, and any corrections to bids shall be initialed in ink.
Quotations or proposals submitted in pencil shall not be accepted.
2. Sealed bids shall be submitted to the GRDA Purchasing Unit in a properly marked envelope or
package, and shall be sealed. The name and address of the bidder shall be printed on the
exterior of the envelope or package. The RFQ or RFP number and bid opening date shall be
referenced on the face of the sealed envelope or package. Unmarked bids shall be rejected and
returned to the bidder. Neither fax nor e-mail submissions shall be accepted for sealed bid
requirements, as they negate the confidentiality of the bid. Any bid received via fax or e-mail for a
sealed bid requirement shall be rejected and returned to the bidder. Bid opening time extensions
shall not be granted. Bids received after the opening time and date shall not be considered. This
is a formal bidding procedure with all bid packets recorded upon receipt and held unopened
under lock until the bid opening at the time, date and location listed on the RFQ or RFP. At public
bid openings, a short description of the item and the bid price will be read. The information shall
be recorded on a bid tabulation to be used during the subsequent bid evaluation. Interested
bidders may make an appointment to review quotations after an evaluation, recommendation and
bid award has been made.
3. Non-Collusion Affidavits: RFQs or RFPs anticipated to exceed a total amount of $2,500 shall
be accompanied by a Non-Collusion Affidavit. This affidavit shall be completed by the bidder and
include an original signature in ink of an authorized company representative (preferably the
bidder) with full knowledge and acceptance of the bid proposal. The affidavit shall be notarized,
with notary seal or stamp affixed. A facsimile or copy of an original signature or notary seal shall
not be accepted. The Non-Collusion Affidavit with original signature and notarization shall be
mailed with the bid response to the attention of the Contracting & Acquisitions Agent listed on the
RFQ or RFP. Purchase orders in excess of $2,500 will not be released to the successful bidder
without receipt of an original and properly executed affidavit for the bid.
4. In the event the unit price and line total extension do not agree, the unit price shall be considered
the quoted price accepted for evaluation.
5. Freight Terms: All prices shall be quoted FOB: Destination/Freight Allowed. All packaging,
handling, shipping and delivery charges shall be included in the unit price quoted for each line
item. No exceptions shall be granted unless approved by the guidelines of the GRDA Chief
Financial Officer or designee.
6. Other Surcharges: Any additional surcharges (such as HazMat charges, fuel surcharges, set-up
fees, etc.) shall be included in the unit price quoted for each line item. All additional charges are
considered a part of the cost of the goods, and bids shall be evaluated to include these additional
charges.
7. Tax-Exempt Status: GRDA is an agency of the state of Oklahoma and is specifically exempt
from the payment of sales tax by Oklahoma state statute, Title 68 O.S.A. § 1356 (10). An excerpt
from the statute shall be furnished upon request.
8. Questions arising during the bidding process should be submitted in writing to the
Contracting & Acquisitions Agent named on the RFQ or RFP. The GRDA Contracting &
Acquisitions Agent shall coordinate a reply from the end user to ensure that all potential bidders
7
are provided the same information. Under no circumstances shall a bidder discuss pricing with
any GRDA employee prior to the bid opening.
9. All bids submitted shall be subject to GRDA’s Purchasing Policy and Procedures, General Terms
and Conditions, the bidding instructions and specifications, the Oklahoma Open Records Act,
other statutory regulations as applicable, and any other terms and conditions listed or attached
herein – all of which are made part of this Request for Quote or Request for Proposal.
10. GRDA reserves the right to reject any and all bids, and to contract as the best interests of the
Authority may require. GRDA reserves the right to reject any bids that do not comply with the
requirements and specifications of the Request for Quote or Request for Proposal. All bid
responses become the property of GRDA and are subject to the Oklahoma Open Records Act.
GRDA shall endeavor to protect technical information designated by the bidder as proprietary
information; however, only technical information (i.e., “trade secrets”) may be considered
proprietary – pricing and other non-technical aspects of the quote shall be considered nonproprietary.
11. “Sole Brand” Items: Items with a “Sole Brand” designation in the description shall be furnished
as the specified manufacturer and model/part number. No exception may be taken to the
specification, and no alternate shall be accepted. In those cases where a manufacturer has
discontinued the specified model/part number, the bidder shall indicate so on the RFQ. If a
replacement item is available, the new model/part number shall be indicated on the RFQ form
and the price quoted. It shall also be noted whether the replacement item is a direct replacement
for the obsolete part number originally requested. If not, or if the specifications differ in any way,
the bidder shall explain in detail, and corresponding drawings or descriptive literature shall be
included with the quote.
12. Approved Equivalents:
Unless an item is designated as a “Sole Brand” item, any
manufacturer’s name, brand name, information and/or catalog number listed in a specification is
for informational purposes and is not intended to limit competition. Bidders may offer any
brand/manufacturer for which they are an authorized representative, provided it meets or exceeds
the specification of the listed item. However, if quoting an equivalent product, bidders shall
indicate on the RFQ form the manufacturer’s name and part number. Bidder shall also submit any
drawings, descriptive literature and specifications for evaluation purposes. Reference to literature
submitted with a previous bid shall not satisfy this provision. The bidder shall also provide written
confirmation that the proposed equivalent will meet the requested specifications and is not
considered an exception. Bids which do not comply with these requirements may be rejected.
GRDA warehouses are not permitted to accept any item with a part number differing from that
quoted by the bidder. Bids lacking any written indication of intent to furnish an alternate brand,
model or part number shall be considered to be in complete compliance with the specifications as
listed on the RFQ.
13. Insurance Certificates: Any service to be performed that requires the vendor’s employee,
vehicle or equipment to be on any GRDA property must be covered by minimum insurance
requirements. The workscope to be performed for the Authority shall be evaluated and the
minimum insurance requirements shall be provided to prospective bidders with the RFQ or RFP.
Evidence of insurance coverage shall be furnished in the form of a Certificate of Insurance, and
shall be submitted with the bid response. Bidders shall disclose any subcontractors to be used,
and the Authority shall consider the supplier as the single point of contact. The supplier shall
assume responsibility for the performance of the subcontractor. Policies shall remain current for
the duration of the requested service period, and GRDA shall be notified of any cancellation or
revision to policies. Purchase Orders shall not be released to the successful bidder without a
current Certificate of Insurance naming GRDA as certificate holder on file. A Memorandum of
Insurance shall not be acceptable for this requirement.
14. MSDS: Material Safety Data Sheets shall be furnished to GRDA’s Safety Department at the
address noted on the PO prior to delivery of items.
8
15. Purchase Orders shall be awarded to the “lowest and best” or “best value” bidder. Line items
may be split into multiple orders, taking low items from each respective bidder, or orders may be
awarded on an “all or none” basis, whichever is in the best interests of the Authority. Award
decisions are further subject to consideration of any additional terms and conditions contained in
the bid proposal. Vendor protests must be submitted in writing to the Central Purchasing Unit of
GRDA within 36 hours of award of contract or purchase order.
16. Successful vendor shall deliver the merchandise or perform the service as quoted. Substitutions
or changes without prior approval of the GRDA Contracting & Acquisitions Agent shall be rejected
and returned at the vendor’s expense.
17. Bidder Responsibilities: Bidders are to transact all phases of the purchasing function directly
with the GRDA Contracting & Acquisitions Agent. Bidders are to conduct all written and verbal
communication with the Authority through the GRDA Contracting & Acquisitions Agent. Bidders
are to conduct negotiations ethically, without attempts to influence through offers of valuable
personal gifts or entertainment. Bidders are to make available as requested any technical
information which might be of benefit in the bid evaluation.
18. Supplier List: The Finance Department maintains a current listing of suppliers with a crossreference as to products and services offered. Suppliers may have their names added to the list
by submitting a completed Vendor Registration/Payee Application, and shall notify the Authority
of any update information. If a supplier fails to respond to bid requests after four appropriate
solicitations, that supplier may be removed from the active list. Suppliers who do not meet
quoted shipping dates or lead times, supply products or services of poor quality, substitute items
of unequal quality, continually over-ship or under-ship items, or do not invoice properly may be
placed under suspension or disqualified from the active supplier list. Suppliers may voluntarily
request to be removed from the supplier database.
19. Timeliness of Delivery: The date quoted by the Bidder for delivery of the transformer will be
considered in the analysis of this bid due to the need for this material as soon as possible. As
such, time is of the essence in the delivery of this transformer. Should the contractor neglect or
fail to deliver the transformer to the destination in the time frame defined by the contractor in his
proposal, the contractor agrees to pay to GRDA, One Thousand Dollars ($1,000) per calendar
day, not as a penalty, but as liquidated damages for each and every calendar day by which the
actual delivery exceeds the quoted delivery. The liquidated damages described are fixed and
agreed upon by the parties because of the impracticability and extreme difficulty of fixing and
ascertaining the actual damages GRDA would sustain in such event. The said amount is agreed
by the parties to this contract to be the amount of damages which GRDA would sustain.
20. Best Value Award: The award of this contract will be based on a “best value” criteria analysis, to
include but not be limited to the following items in no order of preference:
a.
Compliance with the technical specifications
b.
Price
c.
Quoted delivery time
d.
Loss cost evaluation
e.
Locations of production and maintenance facilities
f.
Previous history of products with GRDA, if applicable
21. Supply Contract Bond or Letter of Credit: The selected Bidder may be required to provide a
supply contract bond, or irrevocable letter of credit, with terms approved by GRDA, as described
in Section VII Payment and Bonding of the enclosed Specifications. The amount of this supply
contract bond, or irrevocable letter of credit, shall be one hundred percent (100%) of the bid
amount including any optional items. Any bid submitted which requires a supply contract bond or
letter of credit must be accompanied by a signed letter from an authorized official of a surety firm
or bank agreeing to provide this supply contract bond or irrevocable letter of credit. The bond
must be issued by a surety authorized to do business in Oklahoma and the surety company must
9
also be listed in Federal Circular 570.
http://www.fms.treas.gov/C570/c570_a-z.html
The Federal Circular may be found at
- End of Page -
10
GRAND RIVER DAM AUTHORITY
161/69/13.2 kV
AUTOTRANSFORMER SPECIFICATIONS
I.
GENERAL CONDITIONS
A. INTENT
It is the intent of these specifications to describe the requirements and conditions for
furnishing and delivering FOB destination, via truck, freight prepaid, one (1) power autotransformer with all equipment, services, accessories, and other material as described herein.
GRDA will evaluate bids on the basis of cost per kVA, quoted delivery, weights, dimensions,
similarity to existing units, and other considerations. GRDA desires quotations for an oilfilled autotransformer with tertiary, 3-phase, 90/120/150/168 MVA, 55/65°C rise,
161/69/13.2 kV (delta), ONAN/ONAF/ONAF, 60-Hertz unit with load tap changer (LTC)
and surge arresters.
B. STANDARDS
The autotransformer shall be designed, built, and tested in accordance with the latest revision
of applicable standards of NFPA, EEI, ANSI, NEMA, and IEEE except where these
specifications require equipment with characteristics exceeding the requirements of the listed
agencies.
All equipment furnished shall be in accordance with the best modern practice. Any details
not specifically covered shall be subject to the approval of GRDA. In the event of conflicting
requirements between the standards and these specifications, these specifications shall apply.
C. BIDDER’S EXPERIENCE
1. The Bidder shall have been engaged in the business of constructing substation
transformers for at least 10 years. He shall have successfully proved all equipment in
actual central station or substation service.
2. The autotransformer furnished in response to this bid request shall be manufactured by
the Bidder at his own plant(s).
D. DRAWINGS & INSTRUCTION BOOKS
1. The purpose of having drawings checked and approved by GRDA is to assure contract
compliance and to assist the Bidder in interpreting specifications. The formal approval
given to the Bidder is to be considered as in conformance with these purposes and in no
manner shall be construed so as to relieve the Bidder from any liability or responsibility
for proper design, fabrication, or compliance with the specifications.
2. One-line and outline drawings shall be provided to GRDA for approval eight (8) weeks
after receipt of order by the Bidder. Formal approval of all drawings by GRDA shall be
obtained before any equipment is fabricated or shipped.
11
3. Drawings and instruction books shall be furnished for the equipment as follows:
Item
Outline Drawings w/
shipping weight,
dimensions, etc
Control schematics
Control wiring
Nameplate Drawing
Current Transformer
Performance curves
Bushing Drawings
Instruction Books
Certified Test Results
Repair parts list
Bill of Material
For
approval
Final
Shipped
with unit
2
4
1
2
2
2
4
4
4
1
1
2
4
1
2
2
4
4
4
4
4
1
2
1
2
1
2
Electronic copies of the drawings, in Adobe PDF and AutoCAD format Version 2016
or earlier, may be submitted for approval rather than the 2 paper copies listed above.
All documentation transmittals shall be identified with GRDA’s name, project
designation, project description, etc.
4. No design drawings, data, etc. will be considered for review which are not complete in all
respects and which have not been thoroughly checked by the Bidder. Design drawings,
data, etc. will not be considered for review contingent upon other features/drawings that
have not been submitted for review.
5. The approval drawings shall show the following:
a. Overall dimensions, showing location of GRDA's connections, and all clearances
required for erecting, operating, and dismantling.
b. Base and support details, total weight details, and the location of jack pads, pulling
eyes, etc. required for the foundation design.
c. Weight information shall include total weight, shipping weight and the total volume
of oil required.
d. Overall shipping dimensions and weights shall be provided on a certified drawing to
facilitate obtaining the proper moving permits.
e. The location of all auxiliary equipment shall be designated on the drawings.
f. Complete schematic and internal wiring diagram with external terminal designations
for GRDA's connections. The wiring diagrams are to have sufficient space on
GRDA's connection side of the external connection terminal blocks for the addition
of GRDA's external cable designations. Panel wiring drawings shall clearly identify
all devices and indicate front and/or back of panel wiring.
g. Autotransformer nameplate, connection, and polarity diagrams.
h. Instrument transformer connection and polarity diagrams and performance/excitation
curves.
i. Bushing drawings.
j. Drawings showing additional detail if requested by GRDA or if otherwise required
12
for installation and maintenance.
6. GRDA and/or GRDA’s Engineer will review the drawings, data, etc., for compliance
with specifications, will mark them to indicate whether changes or corrections are
required and will return one set to the Bidder. The Bidder shall resubmit the corrected or
changed drawings, data, etc. Changes or corrections, etc. shall be clearly indicated. A
minimum of three (3) weeks shall be allowed for GRDA's drawing approval. The
approval of GRDA and/or GRDA’s Engineer does not relieve the Bidder from any
liability or responsibility for proper design, fabrication, or compliance with this
specification.
7. Where standard drawings are furnished which cover a number of variations of the general
class of equipment, each such drawing shall be individually endorsed to describe exactly
which parts of the drawing apply to the equipment being furnished. Such endorsement
shall be included on the approval drawings and include the job name, purchase order, or
contract number and serial number of the particular item covered. Separate sheets of
paper bearing the endorsement will not be acceptable unless pasted or stenciled
individually on each print submitted.
8. Drawings shall be organized in a logical manner. Schematic drawings shall show all of
one control function on the same drawing. Wiring drawings shall show the relative
physical location of the devices, including terminals and adjacent devices to be on the
same drawings. All device layouts shall be on the same drawing. Schematic drawings
shall show the internal circuits of each device.
9. Installation Drawings: Instructions, drawings, and other specified documentation shall be
submitted for installation purposes after GRDA gives final approval. This documentation
shall provide complete installation and operation information.
10. Final Record: Final drawings shall be punched and bound with the instruction book or
enclosed in the instruction books. Final books shall be submitted two (2) weeks prior to
shipment and one final book with drawings shall be shipped with the autotransformer.
a. Final books shall be hard-backed and shall be properly labeled on the front outside
with GRDA’s name and location, the autotransformer description, order numbers,
shop order, etc. An electronic copy of the contents of the final book shall be
provided in searchable .pdf format.
b. Prints of final drawings larger than 11" x 17" may be of reduced size if reduction
does not decrease legibility.
c. Digitized AutoCAD files, Version 2016 or earlier, shall be provided for GRDA to
reproduce drawings.
d. The factory test reports shall be included in the instruction books. An electronic copy
of the test reports shall also be provided.
e. One set of the digitized reproducible drawings shall be provided.
f.
Any modifications required during the warranty period shall be accompanied by
revised final documentation as required to update the copies furnished.
13
g. A transformer damage curve shall be provided on 11” x 16.5”, Keuffel & Esser
Company, Time-Current Characteristic, #48 5259, or equal, log-log graph tracing
paper.
h. A spare parts list shall be included in each instruction book. The book shall provide
maintenance and operating instruction for each component of the equipment,
including descriptions and ratings of accessory equipment and schematic and wiring
drawings of all factory wiring.
12. Detail Requirements:
a. Connection or wiring diagrams shall be the lineless type. All points such as coil
terminals, capacitor terminals, etc., shall be identified on the connection diagrams.
b. All drawings shall comply with ANSI Y14, latest published revision.
c. Each drawing and certified document shall have the following as a minimum:
1) Purchase order or contract Numbers
2) Bidder’s Name
3) Bidder’s Shop Order Number
4) Bidder’s Drawing Number
5) Bidder’s Serial Number, when applicable
d. The following information for each motor shall be shown on the electrical schematic
drawing(s):
1) Voltage, Phase, Power Factor and Horsepower Ratings
2) Starting and Full Load Currents
3) Type of Bearings
4) Quantity and Use (Function)
e. Autotransformer dimension outline drawing shall include the following:
1) Weight of Autotransformer Tank
2) Weight and Height of Core and Coils
3) Weight of Heaviest Part to be Handled at On-Site Erection.
4) Total Gallons of Oil
5) The Gallons of Oil lost that would cause a Trip of the Low Oil Alarm (For each
Compartment with low oil alarm)
6) Gallons of Oil Required to Cover Core and Coils
7) Auxiliary Power Requirements:
a) Total
b) First Stage of Cooling
c) Second Stage of Cooling
8) Type of Winding Material (Copper)
9) Location of All Accessories and Details of GRDA’s Power Connection and
Control Conduit Locations.
f.
Quality:
1) Legible drawings and data submitted to GRDA shall be of such quality that said
drawings and data shall be capable of yielding hard copy reproductions with
every line, character, and letter clearly legible.
14
2) Documents submitted to GRDA that do not conform to the requirements of this
specification shall be subject to rejection by GRDA. Bidder shall resubmit
conforming documents. If conforming submittals cannot be obtained from the
source documents, such source documents shall be retraced, redrawn, or
photographically restored as may be necessary to meet with such requirements.
Bidder’s (or his subcontractor’s) failure to initially satisfy the legible quality
requirements herein set forth, will not relieve Bidder (or his subcontractor) from
meeting the required schedule for submittal or drawings and data.
13. Mailing of Drawings and Data:
a. Approval drawings, etc., shall be transmitted by First Class mail or UPS to GRDA as
follows:
Name
Title
Address
Jeff Tullis
Chief Engineer, GRDA
9933 E. 16th St.
Tulsa, Oklahoma 74128
UPS/Shipping Address:
Same as above
Telephone:
Fax:
E-mail:
918-610-9717
918-610-9888
jtullis@grda.com
b. A letter of transmittal must accompany all drawings, data, etc.
E. LOSSES
1. Losses shall be determined and guaranteed at the rated voltage with the tap changers in
the neutral or center positions.
2. No-load (core) losses shall be evaluated at a capitalized cost of $6,862 per kW @ 20°C
3. Load (copper) losses shall be evaluated at a capitalized cost of $1,390 per kW at the 90
MVA, 55°C rating.
4. Auxiliary equipment power requirements shall be evaluated at a capitalized cost of
$2,900 per kW at the maximum 65°C rating.
5. In evaluating the proposals, the total purchase price of the autotransformer will be
calculated by adding the quoted price plus the evaluated cost of the no-load losses, plus
the evaluated cost of load losses at the 90 MVA, 55° C rating, plus the evaluated cost of
the total auxiliary equipment power requirements.
6. An autotransformer which upon factory test does not have losses equal to or less than the
guaranteed losses stated in the Bidder’s Proposal, shall have its selling price reduced.
The price reduction shall be the difference between the guaranteed losses and the actual
15
losses that exceed the quoted guarantee as determined by the tests, multiplied by a 1.1
penalty factor, and then multiplied by the appropriate dollar assessments given in the
preceding paragraphs. If one area exceeds the quoted value and the two others do not,
only the one exceeding the quote will be used to calculate the price reduction. No credit
shall be given for losses lower than the quoted values.
F. TESTS
1. All test readings shall be documented, certified, and sent to GRDA as a part of each
instruction book.
2. GRDA shall be notified within the next working day of any test failure.
3. Bidder’s standard test procedures are acceptable.
4. These autotransformers shall receive all routine tests specified in the latest revision of
ANSI C57.12.00. These tests shall be performed in accordance with the latest revision of
ANSI C57.12.90.
5. Resistance measurements of all windings on the rated voltage connection and at the tap
extremes.
6. Ratio tests on the rated voltage connection and on all tap connections.
7. Polarity and phase-relation tests on the rated voltage connection.
8. No-load (core) loss at rated voltage on the rated voltage connection and tap extremes.
9. Exciting current at rated voltage of the rated voltage connection and tap extremes. An
Excitation Curve shall be furnished using test and calculated values to 2 per unit voltage.
10. Impedance and load loss at rated current on the rated voltage connection and on the tap
extremes. Test sheet impedance values shall include both the positive sequence and zero
sequence network values.
11. Temperature tests shall be made at the ONAN and ONAN/ONAF/ONAF ratings.
Temperature tests obtained from previously manufactured similar units will be
acceptable.
12. Induced potential tests.
13. Applied potential tests
14. Through Faults: Without limiting in any way any obligation of the Bidder under this
agreement, the Bidder shall demonstrate to the satisfaction of GRDA that the
autotransformer proposed to be furnished under this specification shall have sufficient
mechanical strength to withstand, without failure, all through-fault currents. The Bidder
shall demonstrate that the autotransformer meets this requirement by one of the following
methods:
a. Certified test data showing that an autotransformer with a core and coil identical in
16
design and construction and identical or similar with respect to kVA capacity, kV
ratings, BIL, impedance and voltage taps has been tested without failure for shortcircuit strength. A description of the test code under which the autotransformer was
tested for short-circuit strength will be provided by the Bidder to GRDA.
b. A history of successful experience with autotransformers of identical or similar
ratings, design, and construction. The Bidder shall list all autotransformers in-service
with core and coils which are essentially identical in design, construction, and
manufacture to the autotransformer covered by this specification and provide the date
of installation, location, and failures, if any. Where such autotransformers have not
been built or the cumulative service record is less than 20 autotransformer years, a
list of autotransformers in service, which represents the closest approximation to the
autotransformer covered by this specification, shall be submitted. The information
submitted shall be representative of the total experience of the Bidder with the design
of the autotransformer it proposes to furnish and include the dates of installation or
shipping, the ratings of the autotransformers, and the failures and causes of failure, if
any have been experienced. This history is not limited to the kVA rating of the
autotransformer to be furnished hereunder. Such history or failures shall also include
the approximate percentage of repair cost borne by the Bidder and the approximate
time the unit was out of service for repairs.
15. Additional tests shall be performed as specified below in accordance with the latest
revision of ANSI C57.12.90.
a. Corona Test (Partial Discharge):
1) This test shall be performed during the induced test.
2) The ratio noise meter shall be coupled to the terminals of the windings under test,
either through a coupling capacitor or through the bushing capacitance taps.
Shielding and filters are allowed to discriminate against external interference.
The RIV is to be measured within the frequency range of 0.85 to 1.15 MHz.
3) On each winding terminal continuous monitoring or periodic readings at 5minute intervals shall accompany the 1-hour test to insure that the apparent
discharge level does not exceed 100 microvolts. The 1-hour test readings shall
not exceed the RIV level measured at the rated maximum voltage readings by 50
µV or more
b. Impulse Test: (ANSI)
1) This test shall consist of:
a) One Reduced Full Wave
b) Two Chopped Waves
c) One Full Wave
2) Impulse tests shall be made without excitation and performed in accordance with
the latest revision of ANSI C57.12.90.
3) Each autotransformer shall be excited to 110% of maximum operating voltage
before and after impulse testing, noting the change in exciting current and core
loss. Changes in either the exciting current or core loss or both which exceed 5%
shall be corrected by reverse impulses. If correction to within 5% of before-
17
impulse cannot be obtained, the unit(s) shall be considered failed.
4) Voltage and ground current oscillogram traces shall be made.
5) The Bidder shall furnish to GRDA one certified copy of complete impulse test
results including oscillogram traces on a durable stock that will yield legible
photocopies.
c. Power factor tests of completely assembled autotransformer utilizing the Doble test
method, corrected to 20ºC, shall not exceed 0.5%.
d. Sound tests.
1) Audible Sound Level: This autotransformer shall be designed and guaranteed to
have an average sound level not exceeding 5 dB below the level listed in the
latest revision of NEMA Publication No. TR1. If the maximum average sound
level with all auxiliary cooling equipment in operation exceeds the maximum
sound level listed in the latest revision of NEMA Publication No. TR1, GRDA
shall be notified so that sound insulation can be installed on the autotransformer
at the Bidder’s expense. GRDA may perform an in-service field test.
2) Audible sound testing is required unless an essentially duplicate autotransformer
has been sound tested by the Bidder. The successful Bidder shall, if omission of
sound testing is requested, submit for approval three copies of such tests showing
the design will meet the sound level specified.
16. GRDA and/or his representatives shall have the right to witness all tests and core and coil
assembly before tanking. The Bidder shall advise GRDA 15 working days in advance of
tests and tanking of core and coils so travel arrangements may be made. GRDA retains
option to waive witnessing tests.
17. Prior to shipment of autotransformers, all test results shall be sent to GRDA for approval.
18. A copy of bushing Bidder’s test reports, including power factor, shall be forwarded to
GRDA.
G. SHIPMENT
1. Shipping shall be f.o.b., GRDA Transmission Headquarters, 635 Hwy 69A, Mid-America
Industrial Park, Pryor, OK 74362. Final offloading at the site will be by the bidder
and included in the quotation.
2. Delivery shall be made during regular work hours for GRDA (Monday through Friday,
7:00 to 3:30 CPT, excluding State holidays). GRDA shall approve the delivery schedule
for the autotransformer and auxiliary equipment. The Bidder shall be responsible for all
demurrage charges for deliveries during hours other than those approved by GRDA.
a. GRDA shall be advised of the shipment dates two weeks in advance including the
actual shipping date.
b. The Bidder shall notify GRDA 48 hours prior to releasing equipment for
shipment. The Bidder shall then notify GRDA 48 hours prior to actual delivery
18
to schedule personnel to accept delivery. GRDA shall approve the schedule for oil
delivery.
c. If the delivery of the transformer parts, bushings, cooling equipment, etc. requires
multiple trucks, all trucks shall arrive at the same time for unloading.
3. Oil shall be shipped by truck only; oil delivery by separate rail tanker car is not
acceptable. Upon receipt, oil is to meet ANSI or Doble TOPS (Transformer Oil Purchase
Specifications).
4. A copy of Bills of Material and packing lists of all shipments shall be sent to GRDA two
weeks before date of shipment. An additional copy shall accompany actual shipment.
5. Shipping Preparation:
a. If shipped partially by rail, shipment shall be done using a depressed center car.
Final delivery to site will require truck transport provided by Bidder.
b. The autotransformer shall be shipped filled with dry air or nitrogen.
c. The Bidder shall adequately prepare, brace, weatherproof, and package all equipment
for shipment and extended outdoor storage. The autotransformer and equipment
packages or crates shall be adequately protected to prevent damage from high
humidity, water, ice, snow, dust, etc.
d. Each item of equipment, box, crate, or other shipped article shall be clearly identified
by stenciling or with a securely fastened, weatherproof tag with GRDA's purchase
order or contract number (including revision number), equipment number (if any),
box or crate number, box weight, and the Bidder’s reference number. All shipping
containers, packing lists, bills of material, correspondence, etc. shall be identified
with the same above information. All boxes, shipping containers, crates, etc. shall
have a weatherproof packing slip, packed inside.
e. Oil-filled bushings shall be shipped per the Bidder’s recommendation.
f.
Bidder shall install a pressure/vacuum gauge on the autotransformer tank prior to
shipment to show whether or not adequate pressure was maintained during shipment.
g. Just prior to shipment, Bidder shall check and record the autotransformer tank dew
point, temperature, and pressure. One copy of this data shall be shipped with the
autotransformer and one copy sent to GRDA. If the receiving dew point exceeds the
shipping dew point, the Bidder will bear the cost of drying out the autotransformer.
h. Bidder shall provide a crane for unloading the autotransformer at the specified site.
i.
The autotransformer shall be shipped with an attached, continuous monitoring, GPS
and impact recorder. GRDA shall have real-time computer access to the monitoring
data including location, speed, and reports of any impacts.
H. ERECTION PROCEDURE
19
1. The Bidder shall provide an attachment to the instruction book that provides a step-bystep description of the erection procedure required to place the autotransformer in service
properly. This procedure shall ensure the Bidder’s warranty.
2. The description shall include, but not be limited to the following:
a. Inspection and test, including electrical and dryness criteria, vacuum and oil filling
procedures, and erection of all items.
b. Drawdown of oil after erection.
c. Oil requirements.
3. Field Supervision: This contract includes field supervision by the manufacturer's service
personnel for the reassembly, field testing, adjustment, and readying autotransformer and
accessory equipment furnished for service or indefinite storage. All required field
supervision shall be included in the proposal prices. Actual labor and equipment required
for reassembly of the autotransformer will be provided by GRDA or its contractor.
4. Storage: The autotransformer will be stored on a concrete pad as a spare for future use as
required. Bidder shall provide instructions for preparation of the unit for indefinite
storage including any necessary auxiliary power connections, testing recommendations,
or other requirements.
I.
SPARE PARTS
The Bidder shall include, separately, a list of spare parts recommended for stocking by
GRDA for maintenance and repair.
J. PROGRESS REPORT
The Bidder shall provide a Progress Report as follows:
1. Submit a report once each month beginning the month following receipt of purchase
order or signed contract and ending during the month when final delivery of equipment
and material is made.
2. Show status as of first of the month during which it is submitted.
3. Show revisions in the Bidder’s schedule when made.
4. The Progress Report shall show:
a. The status of work already accomplished.
b. The schedule of all work to be accomplished to final delivery date.
II.
DETAILED SPECIFICATIONS
20
A. APPLICATION
1. The unit shall be an outdoor, three-phase, 60 Hertz, 55/65°C autotransformer with a
tertiary winding and two stages of fan cooling for transmission tie operation. The unit
shall be provided with load tap changing equipment to regulate the 69 kV secondary
voltage. The autotransformer will be connected (in the future) to a system which has an
effectively grounded neutral.
2. The autotransformer tertiary will be a no-load tertiary except for a nominal station service
load which will not exceed 1,000 kVA.
3. The autotransformer that is to be furnished shall have sufficient mechanical strength to
withstand without failure all through-fault currents in accordance with provisions of
ANSI C57.12.00, Section 7, latest revision.
B. AUTOTRANSFORMER RATINGS
1. Nameplate Ratings:
a. Duty.................…………………………………………………. Continuous
b. Maximum Ambient Temperature ………………………………….
40ºC
c. Maximum Temperature Rise Allowable for Altitudes 735-3300’ MS….ANSIC57.12-00
d. Altitude of final installation location ……………………………. 1000 ft. MS
e. Impedance (H-X Winding): 4.5% at 90 MVA
Tolerance of ± 10% of the specified value.
The zero sequence impedance of any autotransformer equivalent-impedance-leg
shall be positive or the least negative value possible without increasing the cost of the
autotransformer.
2. The Bidder is asked to quote the unit as follows:
Primary H
Winding
161kV
Grounded
Wye
Secondary X
Winding
69kV
Grounded
Wye
Tertiary
Winding
13.2 kV
Two 2-1/2%
Two 2-1/2%
161 kV
15 kV
750 kV
None
None
69 kV
15 kV
350 kV
16 steps of
5/8% taps
16 steps of
5/8% taps
None
None
15 kV
None
110 kV
Line to line voltage
Connections
Full capacity, no-load taps:
Above rated voltage
Below rated voltage
Line insulation class kV
Neutral insulation class
Basic Impulse Level of winding
Full capacity load tap changing
equipment above neutral
Reduced capacity, load tap changing
equipment below neutral
None
None
21
Delta
None
None
KVA Rating, 55º centigrade Rise,
ONAN
KVA Rating, 55º centigrade Rise,
first stage of cooling ONAN/ONAF
KVA Rating, 55º centigrade Rise,
second stage of cooling,
ONAN/ONAF/ONAF
KVA Rating, 65º centigrade Rise,
second stage of cooling,
ONAN/ONAF/ONAF
90,000
90,000
1,000
120,000
120,000
1,000
150,000
150,000
1,000
168,000
168,000
1,000
3. The KVA ratings given above are to be based on the standard ANSI ambient cooling air
temperatures of 40º C maximum and not over 30°C average in any 24-hour period, with
the standard ANSI temperature rise of 55°C or 65°C, depending upon load and cooling
equipment operation. The autotransformer shall be designed and constructed to be
capable of operating at the specified maximum MVA rating with the above ambient
cooling temperatures, without exceeding a maximum temperature rise of 65° C. The
cooling equipment shall be provided with the autotransformer.
4. The tertiary winding shall be self-protecting against short circuit conditions.
5. The neutral lead and bushing of the autotransformer windings shall be capable of
carrying not less than the secondary winding full load current continuously.
C. AUTOTRANSFORMER CONSTRUCTION
The autotransformer construction shall conform to the following requirements:
1. The tank shall be of a welded plate design. All tank seams shall be double welded (inside
and out). Corners shall be constructed with an overlap to make use of “T” type welds or
shall have internal gussets.
2. All welds on all enclosures shall be continuous.
3. The tank shall have a welded-on cover. During welding of the autotransformer cover, an
inorganic gasket will be permanently located between the cover and the tank flange to
prevent the entrance of weld spatter into the tank. The cover shall be coated with a nonskid surface.
4. The autotransformer tank shall be provided with tanking guides for centering core and
coil assembly. The completed assembly shall have adequate internal bracing of core and
coils to withstand handling, shipping, and operating stresses and forces. All shipping
bracing requiring removal in the field shall be clearly marked on the outline drawings and
shall be color-coded and marked on the autotransformer.
5. The tank shall be designed to withstand full-vacuum filling in the field. Auxiliary
compartments, when not designed for full-vacuum filling, shall be so designated on the
outline drawing and labeled as such on the compartment itself as well as on the
autotransformer nameplate. Compartments of this type shall be provided with approved
22
valves and piping for isolating or equalizing as required.
6. The autotransformer shall have a sealed tank construction for oil preservation with ample
gas blanket space above the oil. A conservator-type tank design is not acceptable and
will not be considered. The gas blanket shall be maintained by a closed, fully automatic
nitrogen system. The regulating equipment and nitrogen bottle shall be completely
enclosed in a cabinet. The door to the cabinet shall have glass or plexiglass installed for
viewing the bottle pressure without opening the door. One bottle of nitrogen shall be
provided with the autotransformer.
7. Tank shall be provided with a tapered, gas-sampling valve of 1/4" size. The valve shall
not be located more than 66 inches above the base with a 1/4" or larger line extended to
within one inch of the top of the gas space. The sampling valve can be located in the
nitrogen regulating cabinet.
8. The main autotransformer tank and any compartments that are subject to operating
pressures shall be designed to withstand without deformation, pressure 25% greater than
the maximum operating pressures resulting from the oil preservation system. The
minimum design pressure shall be + 12.5 psi (10 psi base plus 2.5 psi safety factor). The
maximum operating pressures (positive and negative) that the transformer is designed to
withstand shall be indicated on the nameplate.
9. The centerlines of the tank shall be permanently and plainly marked near the base of all
four sides of the tank and also shown on the outline drawing.
10. The shipping center of gravity shall be plainly indicated and dimensioned on the outline
drawing and marked on the autotransformer tank sides and cover.
11. The completely equipped and oil filled center of gravity shall be plainly indicated and
dimensioned on the outline drawing only for use in foundation design.
12. All accessory mounting brackets shall be adequately supported to provide a stable
assembly. Supports for arresters shall be designed to resist a 40-pound per square foot
wind loading on the arrester.
13. No welding of any type shall be required for field installation.
14. The design of each autotransformer shall be such as to permit energizing the
autotransformer at a minimum oil temperature of -20° C. At this temperature, the oil
level shall be above the low level marking and the alarm setting of the oil level gauge.
15. The autotransformer shall be divided into four segments or quadrants as viewed from the
top and including the associated side faces. The top segment containing the low voltage
bushing and its associated side of the autotransformer is defined as Segment 1. The other
segments are numbered 2-3-4 clockwise as viewed from the top of the autotransformer.
Segment 1 includes the low voltage bushing. Segment 3 includes the high voltage
bushing. The tertiary bushings shall be in Segment 4.
16. All accessories shall be located in Segment 1, except:
a.
Lifting and jacking facilities shall be in all Segments.
23
b. Ground pads shall be in Segment 1 and 3.
c. Secondary Load Tap Changer (LTC) shall be in Segment 2 on the low voltage side.
d. Primary No-Load Tap Changer shall be in Segment 2 on the high voltage side.
17. Autotransformer Base Requirements:
a. The base shall be fabricated of flat plate steel of 1-inch minimum thickness or of
adequately-sized channels. GRDA prefers the flat plate steel design. The edges of
the base shall be rounded or sloped upward at an angle of approximately 45°.
b. The center of gravity of the autotransformer, as normally prepared for shipment, shall
not fall outside the base support members for a tilt of the base of 15° from the
horizontal, with or without oil in the autotransformer.
c. The base shall be designed for jacking, towing, and rolling and shipping in the
directions of the centerlines of all Segments.
d. The base shall be designed to support the entire autotransformer, completely
assembled and oil filled, on piers located only under the outer one-foot of Segments 2
and 4. GRDA reserves the right to support this autotransformer with either a pier or a
slab type foundation.
18. All gasketed joints shall have machined surfaces on both sides to assure even and
effective pressure, to avoid overstressing gaskets, and to maintain oil tightness of joints
under all service conditions. Joints shall be provided with gasket retainers and metal-tometal stops. All gasketed joints on top of the autotransformer shall utilize flanges that are
raised at least 3/4 inch above the cover surface.
All gaskets in contact with oil-bearing surfaces shall be nitrile butadiene synthetic rubber.
Cork, in any form, is unacceptable as gasket material. Gasket joints shall be an
overlapping, tapered type. Butt-jointed gaskets are not acceptable
Necessary gaskets shall be provided for the initial installation and assembly of the
autotransformer. These gaskets shall be shipped with the autotransformer.
19. In addition to the initial set of gaskets, one complete set of spare gaskets for the
complete autotransformer shall be provided and shipped in a separate container. Each
gasket shall be labeled or identified with the appropriate use or installation location.
These gaskets are for future use only and are in excess of those required for
autotransformer assembly. A complete set of spare gaskets is defined as one gasket for
each gasketed location of the autotransformer that is used to contain the insulating oil.
20. Manholes & Hand/Inspection Holes:
a. GRDA shall approve the number and location of manholes. The minimum
dimension for round, oval, or rectangular manholes shall be 18.5 inches. A minimum
of two manholes shall be provided in the tank cover.
24
b. Hand/inspection holes shall be provided to allow inspection and tightening of all
mounting hardware, various tap changer items, all other bolted connections not
accessible from manhole entrances, and all other miscellaneous bracing and
mounting. The minimum dimension for round, oval, or rectangular hand/inspection
holes shall be 12 inches.
c. All manholes and hand/inspection holes shall be bolted.
d. Each removable bolted cover, i.e., manholes, hand/inspection holes, etc. weighing
more than 45 pounds shall be hinged, removable, and equipped with lifting eyes.
Cover weighing 45 pounds or less shall have handles.
21. Lifting Facilities:
a. Four lifting hooks shall be provided and designed for lifting the completely dressedout autotransformer with slings at a maximum angle of 30° with respect to the
vertical axis.
b. Each lifting hook bearing surface shall be free from sharp edges, shall be chamfered,
and shall have a hole with a minimum diameter of 2-inches for guying purposes.
22. There shall be two jack lugs in each autotransformer segment. Each jack lug shall have
its centerline located within 1-foot of each segment corner. Each jack lug shall have its
opening so designed that the lifting members of the jacks can be easily inserted. The 2inch holes in the webbing above the jack pad itself are for attachment of winch lines for
skidding of autotransformer and shall be designed for this purpose.
23. The overall height including bushings shall not exceed 22 feet. The shipping height with
bushings, radiators, etc. removed, shall not exceed 15 feet-6 inches.
24. A bracket suitable for mounting a fall prevention safety device shall be provided in the
approximate center of the tank cover. This bracket shall be capable supporting hardware
including personnel harnesses utilizing gravity brakes.
25. A two-inch minimum pipe connection with sealing cap shall be provided for venting and
located in the top cover.
E. COOLING EQUIPMENT
1. Radiators
a. The autotransformer radiators shall be removable. Valves shall be provided to allow
removal and installation of radiators without lowering the oil level in the main tank.
Radiator headers shall be provided with mounting flanges for bolting directly to the
radiator shut-off valves mounted on the autotransformer. The radiator headers shall
be provided with drain plugs at the bottom, vent plugs at the top, and lifting eyes.
b. If radiator manifolds are provided on the autotransformer, shut-off valves to the main
tank, vent plugs, and drain valves must be provided for each manifold. Valves shall
be of a type that does not leak around the operating stem. They shall be equipped
with indicators which clearly show their position as open or closed and shall be
25
arranged so they can be bolted in either the open or closed position. Packing-gland
type valves will not be accepted.
c. Radiators shall be flushed prior to shipment to remove any welding slag or other
foreign material.
d. Radiator flanges shall be sealed during shipment to prevent any moisture or foreign
material from entering the radiators. Radiators shall be shipped filled with dry
nitrogen.
e. Each removable radiator shall be provided with two lifting eyes with one each on the
top and bottom lifting balance point or four eyes with two each on top and bottom.
f.
Each removable radiator shall be provided with a brass ball valve at its lowest point
for draining the radiator. The ball valve shall have a brass plug and the vent at the
top shall have a steel inlet plug. Radiator drain valves shall have ¾ inch or 1-inch
National Pipe Threads. Reducers are not allowed in conjunction with valves. These
fittings will be used to flush/drain the entire radiator assembly.
g. All radiators shall be of suitable material, using welded or brazed construction. They
shall be designed and braced to prevent undue vibration. X-bracing is required for
each radiator bank, top and bottom. All radiators shall be capable of full vacuum
filling.
h. All plugs shall have square heads and National pipe threads. Teflon tape shall be
applied to all threaded parts prior to assembly.
i.
If possible, GRDA would prefer that radiators not be located in Segment 4 below the
tertiary bushings.
2. Fans
a. Fans shall be provided to facilitate full 65°C nameplate ratings at specified maximum
ambient temperature. Fans shall be single phase, 240 volts AC. Each bank of fans
shall be supplied through a separate breaker installed in the control cabinet. The
failure of the first stage of cooling shall not inhibit the second stage from operating in
accordance with the settings on the winding temperature gauge contacts.
b. The wiring diagram and schematics for the forced cooling equipment and other
equipment shall be submitted to GRDA for approval before actual assembly is
started. Tabular wiring diagrams are not acceptable.
c. Each Autotransformer shall have one additional fan per cooling stage in excess of the
design requirements. NOTE: The heat run calculations cannot take advantage of this
requirement for one additional fan per cooling stage. However, it should be included
in the total auxiliary load for loss calculations.
d. Cooling fans shall have their rotating shafts in the horizontal position and mounted
for cross-flow cooling.
e. All fan motors shall be totally enclosed, non-ventilated, with sealed, prelubricated
26
ball bearings. Fans shall be rated for all-weather outdoor operation.
f.
All fan motors shall have a power factor of 0.8 or better.
g. Each fan motor shall be provided with thermal overload devices.
h. Fans shall be of slow speed, 1140 RPM or less, high volume design for quiet
operation.
i.
Fans shall be fully accessible and designed so any individual fan can be easily
removed without disturbing the operation of other fans.
j.
Fans shall be dynamically balanced and operate without vibration.
k. Each fan shall have a flexible cable connection to a ring type disconnect.
l.
Each fan shall be attached to a radiator and shall be adequately protected by a guard.
Fan guards shall meet or exceed OSHA regulations.
m. Fan motors shall not be equipped with centrifugal switches.
n. The control circuit shall be wired so that upon the opening of a remote contact
supplied by GRDA, all cooling equipment in that stage of fans shall be de-energized.
This circuit shall be designed so that GRDA's connections and remote contact will be
subjected only to 120 volts, 60 Hertz, ac duty. The circuit shall be self-resetting
when GRDA's remote contact is closed
o. The Bidder shall provide a switch for the selection of either cooling bank as the first
forced cooling stage.
p. The 2nd stage of forced cooling shall be activated when the 1st stage of forced cooling
is called for if the 1st stage forced cooling contactor does not operate.
F. OIL DRAIN AND FILTER VALVES
1. Each component or tank must be equipped with an oil drain valve, vent plug, mechanical
pressure relief device, sudden-pressure device with auxiliary contacts, oil sampling valve,
and provisions for upper and lower oil filtering connections.
2. All tank drain valves and upper filter press valves shall have 2-inch National Pipe
Threads. Metric-cut threads are not acceptable. Radiator drain valves shall have ¾
inch or 1-inch National Pipe Threads. Reducers are not allowed in conjunction with
valves. All valves shall be equipped with end plugs or caps.
3. All valves shall be ball-type, brass and shall not leak around their operating stems.
4. Each valve shall have a steel valve plug with a square head and Teflon tape applied to its
threads. All other plugged locations shall also have a steel plug with a square head and
Teflon tape applied to their threads. Each drain and upper filter press valve plug shall be
equipped with a 3/8-inch sampling device. This device shall have 5/16 inch x 32 male
threads and be equipped with a cap. The sampling device shall be installed in the end
27
plugs.
5. A drain valve shall be located in the bottom of each oil-filled compartment to provide
drainage within 1-inch or less of the bottom of the compartment.
6. Main Tank:
a. A combination drain and lower filter valve shall be provided for complete drainage of
the oil to the bottom of the tank and for outlet to oil filtering equipment
b. An upper filter valve located below the 25°C liquid level shall be provided.
c. A 3-inch vacuum connection with a cap shall be provided on the top of the main tank
for use during filling.
7. LTC and other compartments:
a. A combination drain and lower filter valve shall be provided for complete drainage of
the oil to the bottom of the LTC and associated compartments and for outlet to oil
filtering equipment.
b. A 2-inch upper filter valve shall be provided for each compartment.
c. A 2-inch or larger vent threaded opening with a plug shall be provided on the side,
within the gas space, of each of the compartments.
G. GROUNDING
1. Each autotransformer shall be equipped with two ground pads, one each in the lower left
corners (as you face the segment) of Segments 1 and 3.
2. All ground pads shall consist of copper-faced steel pads or stainless steel pads without
copper facing. The minimum thickness of the copper facing shall be 0.015 inch. Pads
shall have NEMA 2-hole spacing and drilling. Thread protection for the ground pads
shall consist of a flanged cup of non-corrosive material suitable for press fitting into
threaded openings.
3. The ground bus shall be installed up from the ground pads in Segments 1 and 3 to the top
of the autotransformer. Ground bus shall make a complete loop around or on the outside
edge of the autotransformer tank cover so that it is convenient and accessible for
connection to all arrestors, the neutral bushing, and the potential transformer, if provided.
The Bidder shall provide brackets to securely fasten the ground bus and associated leads
to the autotransformer.
4. The ground bus shall cover both holes on each respective ground pad.
5. The Bidder shall furnish all connections from the neutral bushing to the ground bus and
from the arrestors to the ground bus. These connections shall be removable for testing
and replacement purposes.
6. All ground bus shall be solid copper bar with a minimum number of splices. The Bidder
28
shall provide brackets to securely fasten the ground bus and associated leads to the
autotransformer.
7. The ground bus components shall be removed before shipping, packed securely with all
necessary fasteners and fittings into a wooden shipping crate, and shipped along with the
other transformer accessories to avoid copper theft during shipment and transformer
storage. Provide necessary drawings to show how the bus it to be reassembled in the
field.
H. CORE AND COIL ASSEMBLY
1. The design shall be core form.
2. Core construction shall be a stepped, round type. Rectangular cores are not acceptable.
3. The core assembly shall have laminations made of “non-aging”, cold-rolled, grain
oriented, highly permeable silicon alloy steel. Each lamination shall be covered with a
high-resistance, inorganic coating to reduce eddy currents.
4. The core assembly shall be braced adequately to prevent displacement and distortion
under all normal handling conditions including rail shipment and operation under
maximum short circuit conditions. Core bolts shall not be used.
5. Cores shall be grounded at only one point and the core grounds for both the main and
series transformer shall be brought outside the tank to a convenient location for testing.
Core ground points shall be accessible without opening the autotransformer tank. All
hardware necessary for removing the ground lead for testing shall utilize captive
hardware.
6. The autotransformer design shall be adequate to withstand short circuits, with the fault
current limited only by the impedance of the autotransformer itself.
7. All windings shall be made of copper.
8. All joints in the winding shall be resistance brazed. Torch brazing is unacceptable.
9. Circular coil construction shall be used for the main windings and the series windings.
The series windings shall use disc or helical windings. Rectangular coil construction on
any winding or winding component is not acceptable. Layer windings are not acceptable.
10. Insulation material shall be of the thermal upgraded type and completely compatible
system similar and equal to EHV Wiedmann board or ABB (Westinghouse) Insuldur
and shall provide for operation of the autotransformer(s) at 65°C.
11. The insulating varnishes, and other associated compounds shall not contaminate the
insulating oil nor shall the oil affect these items.
12. Radio influence shall meet the requirements of NEMA TR1, latest revision.
13. The current ratings of all leads shall provide adequate ampacity through the highest 65° C
29
rating. The X0 neutral lead shall not be sized smaller than X1, X2 and X3leads. All
leads shall also provide adequate current capacity for loading conditions described in
ANSI C57.91-1995.
14. Excitation: The autotransformer shall be capable of being over excited in accordance
with ANSI C57.12.
15. Winding designs that utilize internal arresters and surge protection are not acceptable. If
the design requires the use of internal arresters, it shall be indicated on the exceptions
section of the bid sheet.
16. GRDA will Doble test the unit after field assembly and oil filling. The unit insulation
must test at 0.5% power factor or less when corrected to 20°C.
I.
BUSHINGS
1. The HV bushings shall be cover mounted in Segment 3.
2. The LV bushings shall be cover mounted in Segment 1.
3. The TV bushings shall be cover mounted in Segment 4.
4. The placement and spacing of the bushings are subject to GRDA's approval.
5. All bushings shall be oil-filled and shall be free of oil leakage. Bushings shall have
suitable leak-proof sight gauges and a convenient means for sampling oil and draining the
bushings at the mounting flange location.
6. All bushings shall have a shielded tap brought out for making ungrounded power factor
tests.
7. All bushings shall be designed such that impulse voltage flashover occurs outside the
tank before flashover occurs on the bushings inside the autotransformer.
8. The bushing ampere ratings shall provide adequate capacity through the 65°C
ONAN/ONAF/ONAF rating continuously with a minimum 25% margin for emergency
overload over an 8-hour period.
9. Each bushing shall have a power factor of 0.5% or less. A certified power factor test
shall be provided for each bushing and shall include grounded and ungrounded specimen
tests. All test values shall be corrected to 20°C. Factory bushing tests shall be forwarded
with certified test results.
10. Each bushing shall be manufactured and tested by the bushing Bidder in accordance with
the latest revision of ANSI C76.1. Test results shall be certified.
11. Acceptable bushings: ABB type "O+C" only. Approval data shall include, but not be
limited to, outline drawing, Bidder, type, style, and catalog number.
12. Bushings shall be gray in color, shall be transformer breaker interchangeable (TBI), and
shall have the following ratings and characteristics:
30
Service
High Voltage
Low Voltage
Tertiary
Neutral
Voltage
KV
161
69
25
25
Bushing BIL
KV
750
350
150
150
Minimum Current
Rating
800
2000
400
2000
13. Each bushing shall be supplied with a NEMA four-hole pad connector sized to fit the
bushing stud. Connector shall be tin-plated copper or aluminum.
J. INSULATING OIL
1. All autotransformers shall be supplied with the necessary quantity of high quality Type II
Naphthenic Insulating Oil.
2. The oil used in the manufacturing process and for filling the autotransformers shall be
non-PCB dielectric fluid in accordance with the Federal Polychlorinated Biphenyl (PCB)
Regulations 40 CFR761, dated May 31, 1979, or the latest revision thereof or superseding
regulation. A certified copy of the gas chromatograph test results shall be sent to GRDA.
The nameplate shall certify that the unit was filled with non-PCB oil at the time of
manufacture.
3. Oil made from Gulf Coast Crude is preferable.
4. Acid refined oil is preferable if available.
5. The insulating oil shall have dielectric strength, low viscosity, and freedom from
inorganic acids, alkali, and corrosive sulfur. The oil shall meet the requirements of
ANSI/ASTM D-3487-1979. The oil, as received, shall have the following characteristics
as a minimum:
Test
Dielectric Breakdown, kV
Power Factor @ 100º C, %
Power Factor @ 25º C, %
Oxidation Inhibitor, %W 2,6 DBPC
Corrosive Sulphur
Water, ppm
Neut. No., MG KOH/G
Oxid. Stability, Min.
Poly Chlorinated Biphenyls (PCB content)
Analine Point, ºC
Color
Flash Point, ºC
IFT @ 25º C, Dynes/CM
Pour Point, ºC
Specific Gravity, 15/15 C
Viscosity @ 37.8 ºC, Kinematic
Dielectric Breakdown, kV
ASTM Method
D1816 (0.04” gap)
D924
D924
D2668 or D1473
D1275
D1533 or D1315
D974
D2112
Gas Chromatograph
D611
D1500
D92
D971
D97
D1298
D445, D2161
D877
31
Requirement
20 min.
0.3 max.
0.05 max.
0.3 max.
Non-corrosive
20 max.
0.025 max.
195 min.
None detected
78 max.
0.5 max.
145 min.
40 min.
-40 max.
0.91 max.
11 max.
30 min.
Bidder will utilize ANSI standard or Doble TOPS.
The above characteristics are not intended to restrict which refining process is used.
6. After installation in the autotransformer and before energization, GRDA will test the oil.
Oil not testing satisfactorily will be rejected by GRDA and must be replaced with
acceptable oil by the Bidder at no cost to GRDA. If GRDA’s’ schedule permits, the oil
may be field dried or reconditioned at no cost to GRDA.
8. The Bidder is advised that GRDA will not open the autotransformer unless dry air is
used; dry air, with maximum moisture content of 0.03% by weight, will be pumped
through the space above the core and coils. The temperature of the dry air shall be 5° C
to 10° C higher than the oil temperature in the autotransformer.
The autotransformer shall be equipped with the necessary piping and valves for use of
dry air and nitrogen gas. The Bidder is to supply one gas bottle with an autotransformer
and he shall also furnish a certificate of ownership in GRDA's name for the bottle.
K. PAINTING
1. All exterior and interior surfaces are to be thoroughly cleaned of dirt, mill scale, rust, and
welding slag before painting.
2. Oil and grease are to be removed chemically before painting.
3. All exterior surfaces, regardless of when the paint is applied during the fabrication, must
be given three coats of suitable transformer paint prior to shipment. All metal surfaces
must have a primer coat applied prior to applying the intermediate and finish coats. The
finish coat shall be Gloss Light Gray, ANSI #70.
4. The inside surfaces of the main tank and LTC compartment shall be cleaned and coated
with white paint which will not disintegrate or act as a catalytic agent when in contact
with the insulating oil and which will not in any way cause deterioration of the oil.
5. Radiators shall be painted using electrostatic application or they shall be hot-dipped
galvanized. The Bidder shall state on the proposal whether the radiators are painted or
galvanized.
6. The interior of all control cabinets shall be gloss white.
7. The tank cover shall be coated with a non-skid surface.
L. LOAD TAP CHANGING EQUIPMENT
1. Acceptable LTC: Reinhausen type “VACUTAP RMV-II” only.
2. All taps above rated secondary voltage will be full capacity (168,000 kVA). All taps
below the rated secondary voltage may be reduced kVA capacity but will be full rated
current.
32
3. The load-tap changing equipment will provide a range of 16 tap steps each above and
below nominal for a secondary voltage ranging from 62,100 to 75,900 volts when the
autotransformer is operating at rated voltage. Each voltage step will provide a voltage
change of approximately 5/8%.
4. A weatherproof, lockable, LTC operator cabinet shall be furnished for control equipment
and for the tap changer drive equipment. The cabinet shall be equipped with a stainless
steel, 3-point latching mechanism and a continuous stainless steel hinge.
5. The tap changer mechanism shall be provided with a hand crank for manual operation. A
mounting for the hand crank shall be provided in the operator cabinet. An electrical
interlock shall be provided which prevents electrical operation of the LTC motor while
the hand crank is engaged.
6. Manual operation of the LTC shall be possible while the autotransformer is energized and
carrying rated load current. An interlock shall be provided that blocks manual operation
for the occurrence of a vacuum bottle failure (for LTC's with vacuum interruption only.)
7. The tap changer motor drive equipment shall include: an eye-level, mechanically driven
position indicator with resettable drag hands, an operations counter, limit switches, circuit
breakers, and other required auxiliary devices, space heaters, lamps, and convenience
outlet mounted in LTC operator cabinet. Dry contacts shall be provided at all LTC tap
positions for remote indication of tap changer status.
8. The power supply used for motor drive, motor control, and related equipment shall be
120/240 volts AC single phase. The drive motor will be supplied through a separate
circuit breaker and a loss-of-supply power relay shall be provided for the drive motor
circuit. Similarly, the control and regulating relay circuitry shall be supplied through a
separate circuit breaker with a loss-of- voltage relay provided.
9. If the control potential supply to the voltage control unit and/or transformer line drop
compensator is de-energized, the tap changer mechanism shall be prevented from making
further position changes and shall activate a non-grounded Form C contact wired to a
terminal block for GRDA's alarm.
10. All operating parts in the LTC mechanism that are not oil immersed shall be made of rust
resisting material. All bearings that are not oil immersed shall be the "Oil-Less" type.
11. A mechanical self-resetting pressure relief device and a sudden pressure relief device
shall be provided for the LTC compartment.
M. AUTOTRANSFORMER CONTROL CABINET
1. GRDA will make all control wiring and auxiliary power connections in the control
cabinet.
2. All control devices shall be housed in weatherproof cabinet equipped with sufficient
heaters and breather vents to prevent moisture condensation and ensure satisfactory
operation of the apparatus to -25°F. All vents shall be guarded to prevent the entrance of
insects.
33
3. Heaters shall be equipped with a non-adjustable thermostat and a manual switch for
disconnecting purposes. When heaters are mounted in a location that may be hazardous
to operating personnel, they shall be provided with protective screens.
4. A weatherproof lockable control cabinet shall be furnished for all control equipment.
The control cabinet shall be equipped with a stainless steel, 3-point latching mechanism
and a continuous stainless steel hinge. Handle shall have provisions for locking including
a 3/8" minimum diameter hole.
5. Control components shall not be located on any exterior door.
6. Approved terminal blocks shall be provided for terminating GRDA's incoming power
supply, potential supply, SCADA control wiring, and alarm indication wires. Shorting
type terminal blocks shall be provided for terminating all current transformer leads. All
GRDA connections shall be terminated on terminal blocks located in the control cabinet.
7. Auxiliary relays, alarm contacts, and indicator relay contacts shall be rated at 120 volts
DC. GRDA's control voltage is 120 volts DC.
8. High quality switches (switchboard type where applicable), auxiliary relays, contacts, and
breakers shall be supplied for all control functions and shall be subject to approval by
GRDA.
9. Control, alarm, indication, and CT leads shall exit the control cabinet in conduit and shall
continue in conduit toward the end device as far as practical in order to provide
maximum protection to the wiring. Flexible conduit may be used at the end device.
10. Switches, contactors, breakers, and control devices mounted in the control cabinet shall
be clearly identified with the drawing item nomenclature as well as the item name and
control position.
11. Adequate space shall be provided for all terminal blocks and control equipment with a
40% expansion capability. The control cabinet dimensions are subject to GRDA's
approval.
12. The exterior doors of the control cabinet must be mounted so that the centerline is no
higher than 5' above the autotransformer base line.
13. An approved provision for GRDA's conduit connection shall be made in the bottom of
the control cabinet.
14. A rack shall be provided for holding the instruction books and drawings.
15. The bottom of the control cabinet shall be no less than 26" above the autotransformer
base
16. Cabinets shall have no overhang or protrusion within seven feet of the autotransformer
base.
17. The tap changer control panel shall be located in the autotransformer control cabinet and
34
shall include but not be limited to the following:
a. Individual power supply switches and main and branch circuit breakers.
b. Beckwith Model M-2001D (Comprehensive) solid-state LTC Control Unit (including
adapter panel) installed with standard functions.
c. Beckwith Model M-0169A Current Transformer (only applicable if line drop
compensator CT does not have a 0.2 A secondary).
d. The voltage regulating controls will include a back-up relay equal to Beckwith
Electric Company model M0329B (or other protection) to prevent the mechanism
from running to full buck or boost due to malfunction of normal controls.
e. Automatic-Manual switch. A two-position switch shall be provided to transfer the
tap changer from automatic to manual control. This switch shall have one nongrounded Form C contact wired to a terminal block for GRDA's alarm (43T Automatic/Manual Switch).
f.
Raise-Lower switch.
g. Cutouts with covers for the additional Beckwith equipment required for parallel
operation by the circulating current method. (Similar to Beckwith M-0115 or M0127A.)
h. Remote-Local switch. A two-position switch shall be provided to transfer the tap
changer from local to remote operation. This switch shall have one non-grounded
Form C contact wired to a terminal block for GRDA's alarm.
i.
Remote Control and Step Indication: Wiring and devices as required for connection
to GRDA's SCADA system for control (raise/lower) and step indication of LTC.
Indication shall be obtained through a variable resistor employing 40 ohms per tap
with suitable terminals for GRDA's connections.
j.
An operations counter shall be provided to accumulate each individual tap change
performed.
18. Cooling Equipment control devices to be located in the autotransformer control cabinet
shall include but are not limited to the following:
a. Individual breakers and contactors for energizing each stage of fans.
b. Automatic-OFF-Manual control switch with an alarm for the “OFF” position.
c. ON-OFF control switch.
d. Main power supply and individual branch circuit breakers.
e. Selector switch for choosing either bank of fans as the first stage of cooling.
f.
Undervoltage alarm for fans utilizing dry contacts for SCADA alarm for each bank of
35
fans.
g. “Fan ON” auxiliary contacts for remote indication.
h. Fan controls shall be arranged so that GRDA's autotransformer lockout relay contacts
can be connected to stop fans.
i.
Cooling equipment shall be started in two selectable stages, in accordance with the
Owner’s choice, from both the winding temperature and the liquid temperature
gauges provided.
19. A lamp receptacle, a toggle switch for illumination, and a GFI-type, three-wire
convenience duplex outlet shall be provided in each control cabinet. The lighting circuit
and convenience outlet circuit shall each have an overcurrent automatic-trip air circuit
breaker with manual reset.
N. CURRENT TRANSFORMERS
1. All wiring shall be provided for each of the current transformers. All leads from the
current transformer shall be brought to the control cabinet and terminated on shorting
type terminal blocks. Conductors from only one CT shall be terminated on each shorting
type terminal block. All terminal blocks shall be properly and clearly marked to indicate
the transformer and winding. The CT leads of each three-phase set shall all be grouped
by sets.
2. Each high voltage bushing (161 KV) shall be equipped with three (3), relay-accuracy,
2000:5, multi-ratio, C800 Class, bushing current transformers.
3. Each low voltage bushing (69 KV) shall be equipped with two (2), relay-accuracy,
2000:5, multi-ratio, C800 Class, bushing current transformers.
4. Each tertiary voltage bushing (13.2 kV) shall be equipped with one (1), relay-accuracy,
2000:5, multi-ratio, C400 Class, bushing current transformer.
5. Each tertiary winding shall be equipped with one (1), relay-accuracy, 3000:5 multi-ratio,
C800 Class current transformer inside the delta connection in each leg of the tertiary.
6. The Ho-Xo bushing shall be equipped with two (2), relay-accuracy, 2000:5, multi-ratio,
C400 Class bushing current transformers.
Location
161 kV (H1, H2, H3)
69 kV (X1, X2, X3)
13.2 kV (Y1, Y2, Y3)
13.2 kV (Y1, Y2, Y3)
Neutral (Ho-Xo)
CT’s Per
Bushing
Ratio
Class
3
2
1
1
2
2000:5
2000:5
3000:5
2000:5
2000:5
C800
C800
C800
C400
C400
O. CONTROL WIRING
36
1. All control, CT, and alarm wiring shall be isolated from ground.
2. Alarm wiring shall not be smaller than No. 16 AWG, 20+strands. Control wiring shall be
smaller than No. 14 AWG, stranded copper conductor or larger. Current transformer
secondary leads shall be No. 12 AWG or larger. Control wire shall be NEC rated 75°C
wet/dry and flame retardant, 60+strands, with 600-volt insulation. All wiring shall not
propagate flame or serve as fuel and shall carry Underwriter's Laboratories listing "SelfExtinguishing Group I."
3. All control wiring shall be tagged with the wire code/number at both ends.
4. The insulation or insulation jacket of each insulated conductor in a multi-conductor cable
shall be color-coded for identification.
5. All control wiring shall be terminated with ring-type compression terminals.
6. Control wiring terminal blocks shall have no more than two wires under each terminal
screw, including ground studs.
7. Control wiring in each cabinet shall be terminated on 30-ampere terminal blocks, GE
type EB-25 or approved equal, having washer head binding screw-type terminals, 10-32
threads, and molded one-piece construction.
8. Each current transformer lead shall terminate in a control cabinet on a shorting type
terminal block rated for 30 amperes with washer head binding screw-type, 10-32 threads,
terminals and molded one-piece construction, GE type EB-27 or equal. One shorting
type terminal block shall be used per CT.
9. A three-pole power distribution block, Allen Bradley Catalog Number 1492-PDL, shall
be provided for the single phase and neutral AC input (Primary, 3-2/0 through #14;
Secondary, 6-#4 through #14; CU connector).
10. An excess of 10% of terminal points shall be furnished for all control wiring. Excess
termination points do not apply to AC power terminals.
11. All terminal blocks, studs, and wiring shall be readily accessible, and there shall be no
"blind" or back-of-panel wiring.
12. Terminal blocks and studs shall not be mounted on the exterior doors, walls, or floor of
any cabinet.
13. Wiring splices or parallel connectors shall not be made in transformer tank braces or in
other non-accessible locations. Such connections shall be made at terminal blocks or
readily accessible splice boxes.
14. All exposed wiring in each cabinet shall be formed with wiring neatly grouped in packs
using wiring cleats, or bands, with groups substantially supported. GRDA will accept the
use of Panduct or equal. A 4"-wide Panduct shall be furnished for GRDA connections.
Banding or tying inside Panduct is not required.
37
15. Wiring across hinges shall be arranged so that any twisting shall occur in the longitudinal
axis of the conductor rather than across the conductor. A one foot loop (2' of wire) shall
be minimum dimension.
16. Conduits: All exterior wiring shall be in rigid or armored conduits. Secondary leads of
current transformers shall not be in a common conduit with control wiring. All conduits
shall be metallic and 1" or larger in diameter. Conduit fill shall be in accordance with
National Electrical Code.
17. Alarm contacts shall be suitable for interrupting, at 250 volts maximum:
a. 0.02 Ampere DC inductive load
b. 0.20 Ampere DC non-inductive load.
c. 2.5 Amperes AC non-inductive or inductive load.
18. All control and alarm fuses shall be of the NEC single element, non-renewable, cartridge
type, time-delay curve Bussman ‘NON’ or equal.
19. Air circuit breakers shall be thermal-magnetic trip, ambient compensated elements in all
phases.
20. Nameplates shall be installed on or near each device, in each control cabinet, describing
the function of the device and bearing the same device number on the schematic and
wiring diagrams. Passive devices such as terminal blocks shall be identified with
nameplates. This identification shall be the same as that used on the schematic and
wiring diagrams. Nameplates shall be made of laminated white and black phenolic
plastic with the white on the outside. The lettering shall be engraved through the white
outside layer so the letters appear black.
21. All AC electrical devices shall be designed for operation on a nominal 120 volt, 60 Hertz,
single phase, alternating current, unless specified otherwise. The Bidder shall guarantee
satisfactory operation when the equipment is continuously energized at any voltage from
95 to 135 volts AC. Equipment required for operation at other nominal voltages shall be
guaranteed to operate satisfactorily over proportional voltage variations. The dropout
voltage shall be less than 75 volts for relays and 90 volts for contactors and starters.
22. All DC electrical devices shall be designed for continuous operation on an ungrounded
station battery that will float on a trickle charge at 132 volts for 60 cell batteries. The
Bidder shall guarantee satisfactory operation when the equipment is continuously
energized at any voltages from 100 to 144 volts for a 60 cell battery. Electrical devices
served from this supply shall not impose any ground connections upon it.
23. All AC and DC devices shall be guaranteed to operate satisfactorily under the voltage
conditions specified above and at 50°C ambient temperature.
24. All accessories and features normally furnished shall be included.
P. SURGE ARRESTERS
1. Surge arrestors shall be furnished and mounted on appropriate removable brackets for all
voltages where roof mounted bushings are provided.
38
2. Surge arrestors shall be the metal-oxide, gapless type and shall conform to ANSI and
NEMA Standards as manufactured by GE, Ohio-Brass, or ABB. All surge arrestors shall be
station class, polymer type.
3. Arrestor ratings shall be as follows:
Operating Voltage
161 kV
69 kV
13.2 kV delta
Duty Cycle
120 kV
54 kV
15 kV
MCOV Rating
98 kV
42 kV
12.7 kV
4. A copper ground bus shall be provided for all of the arresters. This ground bus shall loop
up one side of the autotransformer and be brought down the opposite side to separate tank
ground pads and shall provide the ground for all arresters and the autotransformer neutral
connection.
Q. AUTOTRANSFORMER ACCESSORIES
In addition to all standard accessories, the autotransformer shall be furnished with a minimum
of the following items. Note that all gauges and pressure relays shall be manufactured by
Qualitrol Corp. No substitutions.
1. Externally accessible, gang-operated, No-Load Tap Changer with dial type indicator for
indication of tap position and with provisions for pad-locking. The No-Load Tap
Changer must be accessible from ground level. Tap changer is to operate taps on the
high voltage windings. Taps shall be in 2-1/2% steps with two steps above and two steps
below nominal voltage.
2. One magnetic liquid level indicator for each separate oil compartment or tank with lowlevel alarm contacts. Each gauge shall have two (2), non-grounded, Form C contacts
wired to terminal blocks in the control cabinet for GRDA's alarms. Leads and contacts
shall be ungrounded and rated for use on 125 volts DC or 250 volts AC. Liquid level
gauges shall be mounted at oil level heights.
3. One dial-type liquid thermometer with resettable maximum indicating hand for each
separate oil compartment containing heat-producing components. (No thermometer is
required in the LTC switch compartment.) The gauge(s) shall be mounted at eye level.
Each thermometer shall have three (3), electrically-separate, separately adjustable, nongrounded Form C contacts wired to terminal blocks in the control cabinet. The
thermometer shall be capillary tube type and the capillary tube shall be enclosed in
conduit or other suitable protective device. Contacts and leads shall be ungrounded and
rated for use on 125 volt DC or 250 volts AC.
The contacts shall activate the first and second stages of cooling fans and shall be in
parallel with similar contacts in the hot spot thermometer. The third contact is for
GRDA's alarm circuitry. Each contact shall be adjustable between 20°C and 160°C.
a. The 1st contact shall be used to activate the 1st stage of forced cooling, factory set at
60°C. This contact shall be in parallel with similar contacts in the hot spot
thermometer.
39
b. The 2nd contact shall be used to activate the 2nd stage of forced cooling, factory set at
70°C. This contact shall be in parallel with similar contacts in the hot spot
thermometer.
c. The 3rd contact shall be for GRDA's use, factory set at 80°C.
4. Dial type hot spot thermometers shall be provided for the high voltage and low voltage
windings to indicate the hot spot temperature of each respective winding. The gauges
shall be mounted at eye level and have a resettable maximum indicating hand. The
temperature indication shall be obtained from CT's mounted inside the autotransformer.
Each thermometer shall have three (3), electrically-separate, separately adjustable, nongrounded Form C contacts wired to a terminal block for providing remote indication of
high temperature. The thermometers shall be capillary tube type and the tube shall be
enclosed in conduit or other suitable protective device. Contacts and leads shall be
ungrounded and rated for use on 125 volts DC or 250 volts ac.
a. Each contact shall be adjustable between 20°C and 160°C.
1) The 1st contact shall be used to activate the 1st stage of forced cooling, factory set
at 65°C. This contact shall be in parallel with similar contacts in the hot oil
thermometer.
2) The 2nd contact shall be used to activate the 2nd stage of forced cooling, factory
set at 75°C. This contact shall be in parallel with similar contacts in the hot oil
thermometer.
3) The 3rd contact shall be for GRDA's use, factory set at 105°C.
b. Each thermometer shall be in a different phase.
c. Each CT used for hot spot indication shall have its leads routed to the control cabinet
and terminated on CT type shorting terminal blocks.
5. All thermometers shall be mounted between 54" and 72" above the autotransformer base.
Thermometer leads to remote devices shall be routed within removable channel, flexible
weatherproof conduit, or otherwise protected from damage. Exposed, loose, hanging
leads are not permitted.
6. Pressure-vacuum gauge for the main tank with 3-1/2" dial, 1/2 lb. graduations and plus or
minus 10 psi scale range. Gauge shall be mounted in the nitrogen cabinet and shall be
provided with adjustable low and high pressure ungrounded alarm contacts rated for 125
volts DC or 250 volts AC.
7. A GRDA approved under-oil, sudden pressure relay designed to operate on sudden
abnormal change of pressure inside the autotransformer due to an internal fault shall be
provided on the main tank. The relay shall be provided with separate alarm and trip
contacts and reset relay suitable for 125 volts DC or 250 volts AC, but will be operated
from a 125 volts DC source. Splices in sudden pressure relay connecting cables, if
required, shall only be made on approved terminal boards with approved mounting.
Drawings shall indicate that relay must be removed during vacuum operations if this
requirement exists.
40
Each sudden pressure relay shall be furnished as follows:
a. Primary element which shall operate on pressure increase if 0.5 psi/sec. or greater
and shall not operate for gradual pressure changes, from surges, vibrations,
mechanical shock, external short circuits, etc.
b. Auxiliary relay that will operate and seal in through a reset push button following
operation of the primary element.
c. An "A" contact capable of carrying 20 amps DC trip current and a form "C" contact
for alarm wired to terminal blocks from the auxiliary relay.
d. Auxiliary reset push button.
8. Oil Preservation System – Inert Gas Pressure
a. The combustible gas sampling lines shall be equipped with a test valve and so
arranged that a Fyrite oxygen Analyzer, or equivalent, can be conveniently attached.
b. The combustible gas sampling line shall be brought down from the top gas space in
the main tank, not from any other place, and shall terminate at a point approximately
5' above the autotransformer base.
c
Each sealed gas space shall have purging inlet and outlet lines remotely located from
each other for efficient purging. The line shall terminate approximately 5' above the
autotransformer base and be equipped with a valve.
d. Inert-Gas Pressure: The inert-gas equipment shall have a high-pressure valve and a
gauge equipped with one (1) non-grounded, Form C contact wired to a terminal block
for GRDA's alarm. Alarm contact shall be activated when the cylinder pressure
drops to approximately 200 psi, to indicate pressure and approximate quantity of gas
in the cylinder.
The gas pressure system shall be equipped with the following:
1) A two-stage pressure-reducing valve set at the factory to maintain a desirable
minimum pressure of 1 psi or less.
2) A suitable relief valve which discharges at +5 psi.
3) Valves and by-passes for checking setting of regulator and relief valves.
4) Mechanical self-resetting pressure relief device on the cover of main tank, LTC,
and any oil filled compartments. Each device shall have a mechanical indicator
which is visible from the base of the autotransformer and shall have two (2) nongrounded, Form C contacts and leads rated for use on 125 volts DC or 250 volts
AC wired to terminal blocks in the control cabinet for GRDA's use. This device
shall have a range of 10-15 psi factory set at 10 psi.
III.
WARRANTY
41
A. The Bidder’s warranty shall extend eighteen (18) months from date of energization or twentyfour (24) months from date of receipt by GRDA, whichever time is shorter.
B. The Bidder 's extended warranty on all or any part of the unit and any associated warranty
related to the autotransformer movement, reimbursable in and out costs, and other
arrangements associated with an extended warranty will receive acknowledgment on bid
evaluation.
C. The Manufacturer is advised that written notification concerning assembly will not supersede
the Manufacturer’s published installation procedures in the event that any deviation from
those published procedures is made by the Manufacturer’s Service Engineer/Representative.
(Published Procedure Rule.)
IV.
FIELD REPRESENTATIVE SERVICES AND WARRANTY INITIATION
A. The Manufacturer shall furnish the services of a qualified person to inspect the
autotransformer upon arrival and prior to unloading. The Manufacturer shall furnish the
services of a factory trained, qualified, and experienced Field Engineer to assist the Owner
or his authorized representatives in supervising the assembly of the complete
autotransformer and make the necessary tests prior to energization.
B. The Bidder shall deliver the unit to the transformer pad. GRDA shall provide labor and
equipment to reassemble the autotransformer. However, the Manufacturer will be held
responsible for the proper installation insofar as the Manufacturer’s responsibility is
concerned. The Manufacturer’s responsibility includes the following:
1. Inspection on delivery.
2. Supervise and be responsible for the procedures used in delivery to the transformer pad.
3. Supervise assembly and field testing.
4. Certify in writing that all equipment was installed in accordance with Manufacturer’s
requirements.
C.
The Manufacturer is advised that the autotransformer will be kept under dry air beginning
with inspection upon delivery and ending when field assembly is completed. Field assembly
shall be accomplished under strict adherence to Manufacturer published instructions and to
provisions included herein. Deviations will not be permitted unless authorized and bonded
by the Manufacturer.
D. The autotransformer's core and coil, no load tap changing switches and mechanism, and all
mountings and bracings shall be visually inspected by the Service Engineer prior to installing
insulating oil. Dry air shall be used to purge the main tank prior to entering and exhausted
into the tank during the inspection period. The allowable "open" time with respect to percent
relative humidity shall be as defined by Manufacturer’s procedures.
E.
The Owner will furnish all dry air and nitrogen as required and will be responsible for
obtaining the bottles and their return. Each autotransformer shall be equipped with the
necessary piping and valves for use of dry air and nitrogen gas.
42
F.
The Manufacturer shall provide personnel who are qualified in servicing and placing into
operation the Manufacturer‘s specific type and class of equipment furnished.
G. The Manufacturer shall include as a part of the bid price, the services of a Field Service
Engineer to perform the inspection and supervisory services specified, including whatever
number of trips are required to the job site to complete the erection and placing in-service.
Personnel furnished by the Manufacturer shall be satisfactory to the Owner and his authorized
representatives, or they shall be replaced with personnel who are satisfactory, without
additional charge.
H. The Manufacturer shall, in addition to the above, include as a part of the bid price, all
insurance, transportation, and subsistence costs of the Service Engineer. The Field Service
Engineer will not be required to work on Sundays. The Owner will not make payment to the
Manufacturer for any work required on the part of the Service Engineer in excess of 8 hours
per day or 40 hours per week.
I.
The Owner represents that all construction work will be accomplished in a prompt and
efficient manner; however, this does not preclude overtime work.
J.
The Manufacturer shall promptly correct all wiring and other errors in these autotransformers
discovered in the field at no cost to the Owner.
K. Manufacturer’s service representative shall be fluent with the English language.
L.
The Manufacturer‘s service personnel shall follow these procedures to keep records of
activities while at the project site:
1. Upon arrival at each project site, the serviceman shall make his presence known to the
Owner and the Resident Engineer and supply them with the following information:
i. Name
ii. Company
iii. Local Address and Phone Number
iv. Service he is to Perform
2. The serviceman shall give the Owner/Resident Engineer a written daily report of the
work performed. He shall clear with the Owner/Resident Engineer for any period he
plans to leave the project site for other than normal time off, and advise as to where he or
a replacement can be reached in the event of an emergency.
3. Upon completion of his work, the service man shall clear with the Owner/Resident
Engineer to satisfy him the work is completed and adequate information on where he can
be reached for emergencies or when additional service might be required. Additionally,
he shall give the Owner/Resident Engineer a detailed report of the work performed before
leaving job site.
4. Upon completion of each service period at each project site, the Manufacturer's
serviceman shall sign the Owner's Transformer Inspection and Data Report For
Receiving and Installation to insure a record of work actually performed.
V.
EXCEPTIONS
43
A. Any exceptions to this contract/specification shall be clearly set forth in the Bidder's initial
proposal and specifically identified as exceptions. Comments shall be clearly separated from
exceptions.
B. Should any ambiguities occur within these specifications, the Bidder shall request a
clarification before submitting a bid. GRDA will notify all Bidders of any ambiguities
brought to his attention before the bid due date.
VI.
DESIGN/MANUFACTURING CHANGES
The Bidder shall keep GRDA informed when quoting and before construction, of any major
design or manufacturing changes to be made on this autotransformer that varies from an
established design previously furnished.
VII.
MANUFACTURING ERRORS
All equipment and materials shall be complete in all respects and unless stated in writing by the
Bidder and accepted by GRDA, no exceptions to this contract and specification will be accepted.
Any manufacturing errors required to be corrected in the field shall be performed by the Bidder at
his expense; or if done by GRDA, the cost of the same shall be borne by the Bidder.
Likewise, if any part of this autotransformer is not in conformance to this specification,
corrections necessary for compliance to this specification shall be performed by the Bidder at his
expense; or if performed by GRDA, the cost of same shall be borne by the Bidder.
VIII.
PAYMENT AND BONDING
A. GRDA will make payment in full of the total quoted bid price for the autotransformer and
any optional items only after the autotransformer has been delivered FOB to the specified
location, reassembled, filled with oil, and verified as meeting the specifications.
B.
Should the Bidder require advanced prepayments via a payment schedule linked to the
autotransformer production schedule, material acquisition, or any other manufacturing
landmarks, GRDA requires that the Bidder provide a Supply Contract Bond or Letter of
Credit in the amount of the total cost of the autotransformer. The costs of such bond or
letter of credit shall be listed in the bid as a separate line item. The Supply Contract Bond
shall be of the form listed in Appendix A of these specifications. The bond must be issued
by a surety authorized to do business in Oklahoma and the surety company must also be
listed in Federal Circular 570.
The Federal Circular may be found at
http://www.fms.treas.gov/C570/c570_a-z.html
C. Bidders who accept the total payment for the autotransformer after receipt of the unit by
GRDA do not need to provide a Supply Contract Bond or Letter of Credit.
(End)
05/13/16
44
Appendix A
SUPPLY CONTRACT BOND
BOND NUMBER:
KNOW ALL MEN BY THESE PRESENTS,
That,
as Principal, and
organized and
existing under the laws of the State of
, with an office at
, as Surety, are held and firmly bound unto
(hereinafter called the Obligee), in the just and full sum of
($
)
Dollars, to the payment of which sum well and truly to be made, the said Principal and Surety bind themselves, and their respective
heirs, administrators, executors, successors and assigns, jointly and severally, firmly by these presents.
WHEREAS, the Principal has entered into a certain written contract with the Obligee, dated
hereby referred to and made a part hereof as fully and to the same extent as if copied at length herein.
, 2015, which contract is
NOW, THEREFORE, the condition of this obligation is such that, if Principal shall faithfully perform the contract on his part, and
shall fully indemnify and save harmless the Obligee from all costs and damage which the Obligee may suffer by reason of failure so
to do and shall fully reimburse and repay the Obligee all outlay and expense which the Obligee may incur in making good any such
default, then this obligation shall be null and void, otherwise it shall remain in full force and effect. Provided that in no event shall
the liability of the Surety exceed the penal sum of this bond.
PROVIDED, HOWEVER, it shall be a condition precedent to any right of recovery hereunder that, in the event of any default on the
part of the Principal, a written statement of the particular facts showing the date and nature of such default shall be given by the
Obligee to the Surety within a reasonable time after such default but in no event exceeding thirty (30) days thereafter, and such
statement shall be forwarded by registered mail to the Surety at
.
AND PROVIDED FURTHER, that no action, suit or proceeding, except as hereinafter set forth, shall be had or maintained against
the Surety on this instrument unless the same be brought or instituted and process served upon the Surety within twelve months after
completion of the work mentioned in said contract, whether such work be completed by the Principal, Surety, or Obligee; but if there
is any maintenance or guarantee period provided in the contract for which said Surety is liable, no action, suit or proceeding for
maintenance or guarantee shall be brought after six months from the expiration of the maintenance or guarantee period.
Sealed with our seals and dated this
day of
, 2016.
Principal:
(Witness)
(Seal)
By:
Attest:
Surety:
By: