HomeMy WebLinkAbout111572 WESTERN UNITED ELECTRIC SUPPLY - PURCHASE ORDER - 9100930Date: 2/12/2010
City of
F6rt Coltins
Page Number: 1
Purchase Order Number: 9100930
ueiivery uate: 4/b/LU7U Buyer: DICK,OPAL
Purchase Order number must appear on invoices, packing lists, labels, bills of lading, and all correspondence.
Note: .
0
Line Qty UOM Description Unit Price Extended Price
1 4 'EA
100kVA mod OH transformer
T1050175
T1050175
YARD
TRANSFORMER, 100 kVA, MODIFIED OVERHEAD,
SINGLE PHASE DISTRIBUTION WITH TWO HIGH
VOLTAGE ®USHING'WELLS, WITH TAPS,
HIGH VOLTAGE RATING: 7620/13200Y,
LOW VOLTAGE RATING: 120/240. SERIAL
NUMBER 175 TO BE IN ACCORDANCE WITH
SPECIFICATION ##368-105-175, REVISION KK
GUARANTEED NO LOAD LOSS - 184.
GUARANTEED FULL LOAD LOSS - 779
GUARANTEED TOTAL LOAD LOSS - 963
IMPEDANCE 3.8%
HOWARD INDUSTRIES
6-8 WEEKS DELIVERY
ESCALATION IS NOT; APPLICABLE
11
City of Fort Oil# Director of Purchasing and Risk Management
This order is Wvalid over $5000 unless signed by James B. O'Neill II, CPPO
City of Fort Collins Purchasing, PO Box 580, Fort Collins, CO 80522-0580
Phone: 970-221-6775 Fax: 970-221-6707 Email: purchasing@fcgov.com
3,402.000 13,608.00
Total $13,608.00
Invoice Address:
City of Fort Collins
Accounting Department
PO Box 580
Fort Collins, CO 80522-0580
Rev. Sym. KK
3.2.6 TANK
3.2.6.1 An adequate tank coating for underground vault application shall be provided. Appendix B is provided as a
reference for comparing coating requirements. The Light and Power Department, Engineering Division, is
the only authority regarding the adequacy of proposed coatings. Figure 2 shows outside dimensions.
Fi ure 2
C A
c
8
L
Maximum Clearance. Dimensions inches
WA
A.
B.
C*
75 and below
27
33
44
100 and above
36
36
50
3.2.6.2 PRESSURE
The tank shall be equipped with a Qualitrol #202-014-01 or 202-030-01 pressure relief device or a
pressure relief cover. If a pressure relief cover is used, the cover assembly shall remain effectively sealed
for overloads and external secondary short circuits of the magnitude and duration allowed by industry
standards and loading guides, but shall relieve pressure at a minimum of 8 psi gauge if designed to reseal;
or at a minimum of 20 psig if designed for pressure relief without resealing. If a pressure relief cover is
used, a manual means of venting the tank before removal of the cover shall be provided. Regardless of
which means of pressure relief is provided, the tank and other components of the tank shall be of sufficient
strength to withstand, without damage or permanent distortion, the pressures occurring prior to pressure
relief, as well as pressures occurring due to normal overloads and external secondary short circuits.
3.2.6.3 GROUNDING PROVISIONS
A minimum of two tank mounted ground nuts fitted with a solderless type connector for AWG conductor
size No. 8 solid to No. 2 stranded shall be provided. One ground connector shall be on the tank sidewall,
near the top of the tank, below the primary bushing and the other shall be near the base, below the primary
bushing.
8
368-105
Rev. Sym. KK
3.2.7 LOSSES
The total losses of a transformer shall be the sum of the excitation losses and the load losses (I2R
losses). Load loss tests shall be performed and reported on all units regardless of whether or not a
record of such tests is available on duplicate units. Loss evaluations and loss costs will be based on
the values shown in the "Special Conditions and Supplemental Instructions to Bidders." Transformers
will be evaluated on excitation losses and IZR losses at the specified rates. If tested losses exceed
quoted losses but are within the tolerances of paragraph 9.3, ANSI C57.12.00-2000, the additional cost
incurred from the differential of losses will be calculated using the following equation and the above
specified rates and will be deducted from the original Purchase Order or back charged to the
manufacturer. In the following equation "Units" shall mean "Transformers of the same size and design
on one order."
Excess loss $ _ [No. of units] [(No Load Loss Evaluation $) (Avg. No Load Losses - Quoted No Load
Losses) + (Load Loss Evaluation $) (Avg. Load Losses - Quoted Load Losses)]. If this equation results
in a negative number, no credit will be given the Supplier.
If any unit or units exceed the tolerances of paragraph 9.3, ANSI C57.12.00-2000, that unit or units shall
not be shipped without express permission from the City. If accepted, the deduction for excess losses
will be based on the following equation: Excess loss $ _ (No Load Loss Evaluation $) (No Load Losses
- Quoted No Load Losses) But Not Less Than Zero + (Load Loss Evaluation $) (Load Losses - Quoted
Losses) But Not Less Than Zero.
4 QUALITY ASSURANCE
4.1 GENERAL
4.1.1 RESPONSIBILITY FOR INSPECTION
Unless otherwise specified, the vendor is responsible for the performance of all inspection requirements
as specified herein. Except as otherwise specified, the vendor may utilize his own facilities or any
commercial laboratory acceptable to the City of Fort Collins. The City reserves the right to perform or
witness any of the inspections set forth in this Specification where such inspections are deemed
necessary.
4.1.2 TEST REPORT
The manufacturer shall furnish to the purchaser certified copies of the results of loss tests prior to
payment. Copies of loss tests shall be sent to Standards and shall be attached to the invoice.
Unsigned copies are not acceptable even if accompanied by a signed cover letter.
4.2 TEST CONDITIONS
Unless otherwise specified, testing required by Section 4.4 shall be conducted under the following conditions.
4.2.1 REFERENCE TEMPERATURE
The reference temperature to which losses, impedance, regulation, and efficiency are corrected shall be
85°C.
4.2.2 TOLERANCE ON IMPEDANCE VOLTAGE
Impedance on completed units shall fall within the ranges specified herein.
4.2.3 TOLERANCE ON IMPEDANCE VOLTAGE ON A TAP
The percent departure of tested impedance voltage on any tap from tested impedance voltage at rated
voltage shall not be greater than the total tap voltage range expressed as a percentage of the rated
voltage.
9
368-105
Rev. Sym. KK
4.3 NOT USED
4.4 TESTS
The tests to be performed and the test procedures required are specified in ANSI C57.12.20, ANSI C57.12.00,
and C57.12.90. Exception: impedance and load -loss tests shall be made on each unit and may not be omitted
even if a record of such tests made on a duplicate unit is available.
5 PREPARATION FOR DELIVERY
Transformers shall be prefilled with the appropriate amount of transformer oil and shall be shipped by open -bed truck.
Units shall be packaged in such a way as to provide for ease of handling and to protect units from shipping damage.
Units shall be packaged on four-way universal pallets with 34 inch minimum opening and loaded on the truck for side
removal. The Supplier shall provide 24 hour notice prior to delivery for any shipments where an individual transformer
weighs over 5,000 pounds. In addition to these requirements, the Supplier shall comply with any additional
requirements or modifications shown on the purchase order and/or supplemental instructions.
10
368-105
Rev. Sym. KK
APPENDIX A — Transformer Stock Number Coding
Below are examples that demonstrate the coding method used by City of Fort Collins to establish
transformer stock numbers.
I. SINGLE PHASE
Example #1: 10=:�>
Transformer Class
Single Phase
00 = 13.2Y/7620 &
7620/13.2Y x
2400/4160 outside
pole
05 = 13.2Y7620 ESNA pole
20 = 13.2Y/7620 ESNA pad
II. THREE PHASE
Example #2 10=*
Transformer Class
3 Phase
Pad
368 -1 BC-XYZ
- XYZ
Other
KVA
0 = 5
5=50
1=10
6=75
2=15
7=100
3=25
8=167
4=37.5
9=250
1 = single voltage
2 = dual voltage
006 = 75 075 = 750
015 = 150 100 = 1000
030 = 300 150 = 1500
050 = 500
• All suffixes indicate 208Y/120 sec.
• For 480Y/277 sec., add 1 to XYZ
(ie. 007 would indicate a 75kVA with
480Y/277 sec.)
11
368-105
Rev. Sym. KK
APPENDIX B — Tank Coating Comparison
This Appendix is not intended to dictate requirements for items purchased under Specification 368-
105, but is included as an aid in comparing coatings for those manufacturers attempting to meet the
requirements of this design.
Tank coatings listed here are for reference only and shall not be considered as complete. Also, the
City of Fort Collins shall not be held responsible for patent infringements incurred through the use of
this information.
B.1 ARMORTEC, a fusion bonded vinyl resin having a minimum coating thickness of 15 mils.
B.2 Coal -tar Epoxy having a minimum thickness of 15 mils applied in two coats over a zinc rich
primer and overcoated with flow coat applied black enamel paint.
B.3 Electrostatically applied thermosetting polyester applied as follows:
1. Five Stage Wash - alkaline detergent, water rinse, phosphate treatment, water
rinse, and sealing rinse.
2. Delay Line - dry and cool.
3. Coat - Electrostatically coat with a thermoset- ting polyester.
4. Bake - Heat as recommended by polyester manufacturer to set polyester.
5. Cool.
6. Repeat Process - Repeat applicable steps of above process to obtain a minimum dry
build of 6 mils.
BA Ceilcote Flakeline 252 (minimum thickness 35 mils).
12
368-105
Rev. Sym. KK
APPENDIX C — Approved Manufacturers
Transformers purchased under this Specification shall be of the make shown below. Manufacturers
not listed below may submit written proposals demonstrating compliance with these Specifications for
consideration of addition to the accepted manufacturer list prior to the next request for bids. In addition
to inclusion on the list below, manufacturer's equipment must also satisfy all requirements of this
Specification to be acceptable.
MANUFACTURER SERIAL NO.
Cooper Power Systems All except 196 & 195
Howard Industries All
ABB All
Central Moloney All
The manufacturers in the following list have been conditionally approved and may bid as an alternate.
The definition and intent of "Conditional Approval" of a manufacturer is to allow the City to gain some
experience with the manufacturer's product. Should a conditionally approved manufacturer be the
evaluated low bidder, the City reserves the right to award all, part, or none of the order to them,
dependant upon the current needs of the City for that item or items.
13
368-105
City Order No.
Manufacturer
KVA/Unit
Transformer Loss Evaluation Form- AVERAGE LOSSES
S/N
Invoice No.
LINE
DESCRIPTION
(1)
No. of units
(2)
Average core losses
(3)
Quoted core losses
(4)
Excess average core losses:
line (2) less line (3)
(5)
Penalty for excess average core losses:
line (1) x line (4) x $
6)
Average copper losses
(7)
Quoted copper losses
(8)
Excess average copper losses:
line (6) less line (7)
(9)
Penalty for excess average copper losses:
line (1) x line (8) x $
(10)
Penalty to be assessed manufacturer:
line (5) plus line (9) but not less
than zero
Date Prepared By:
Design Engineering
AMOUNT
Rev. Sym. KK
NOTE: If any unit(s) exceeds the loss tolerances of ANSI C57.12.00, Light & Power will either reject it,
include it on these averages, or calculate losses using the Individual Transformer Losses Evaluation
Form, whichever is most favorable to Light and Power.
14
368-105
Individual Transformer Loss Evaluation Form
City Order No. S/N
Manufacturer Invoice No.
KVA/Unit
LINE
DESCRIPTION
(1)
Tested core losses
(2)
Quoted core losses
(3)
Excess core losses
line (1) less line (2) but not less
than zero
(4)
Percent difference
line (3) , line (2) x 100
(5)
Tested total losses
(6)
Quoted total losses
(7)
Excess total losses
line (5) less line (6) but not less
than zero
(8)
Percent difference
line (7) , line (6) x 100
(9)
Tested copper losses
(10)
Quoted copper losses
(11)
Excess copper losses
line (9) less line (10) but not less
than zero
(12) Penalty for excess core losses
line (3) x $
(13) Penalty for excess copper losses
line (11) x $
(14) Penalty to be assessed manufacturer
line (12) plus line (13)
AMOUNT
Date Prepared By: (Design Engineering)
Rev. Sym. KK
15
368-105
Rev. Sym. KK
Special Conditions andSupplemental Instructions to Bidders
Applicable to Specification 368-105
A. Data to be Supplied with Bidder's Proposal
The following data shall be supplied with the bidder's proposal in addition to that information required by
the "Invitation to Bid" and the 'Purchase Requisition".
1. Impedance volts in % at full load, high voltage to low voltage at 85°C.
2. No load and total losses at 85°C.
3. Protective tank coating specification.
4. A statement indicating compliance with our Specification without exception.
5. Escalation is , is not applicable for the transformers bid. If escalation applies, the Bidder shall
indicate in his bid the specific items or materials subject to escalation, and shall give the method and indices
to be used in computing the amount thereof. Escalation occurring after the quoted delivery date will not be
paid unless delays are the result of actions by the City. Escalation occurring after acceptance, if Purchaser
exercises the option to delay shipment after manufacturing is completed, will not be paid.
Failure to supply the above data shall constitute a basis for rejection of the bid.
B. Loss Evaluations
Loss penalties and loss evaluations will be based on the following values:
1. No load or excitation losses at $3.25/watt.
2. Load losses at $1.10/watt.
C. Shippinq Terms
Ship F.O.B. point of destination, freight prepaid.
D. Terms of Payment
1. If escalation applies, the City of Fort Collins shall not be billed for escalation occurring after the promised
delivery date. Escalation charges shall be itemized on the invoice.
2. Test reports shall accompany the invoice. If test reports do not accompany the invoice, late payment
penalty charges incurred due to delays in obtaining the test reports will not be paid. Certified copies of test
reports shall be sent to the Design Section, Fort Collins Light and Power Utility.
3. Loss penalty credits and escalation charges shall be itemized on the invoice.
16
368-105
L
Purchase Order Tenns and Conditions
1. COMMERCIAL DETAILS.
Tax exemptions. By statute the City of Fort Collins is exempt from state and local taxes. Our Exemption Number is
98-04562. Federal Excise Tax Exemption Certificate of Registry 84-6000587 is registered with the Collector of
Internal Revenue, Denver, Colorado (Ref. Colorado Revised Statutes 1973, Chapter 39-26, 114 (a).
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Goods Rejected. GOODS REJECTED due to failure to meet specifications, either when shipped or due to defects of
damage in transit, may be returned to you for credit and are not to be replaced except upon receipt of written
instructions from the City of Fort Collins.
Inspection. GOODS are subject to the City of Fort Collins inspection on arrival
Final Acceptance. Receipt ofthe merchandise, services or equipment in response to this order can result in }authorized
payment on the part of the City of Fort Collins. However, it is to be understood that FINAL ACCEPTANCE is
dependent upon completion of all applicable required inspection procedures.
Freight Terms. Shipments must be F.O.B., City of Fort Collins, 700 Wood St., Fort Collins, CO 80522, unless
otherwise specified on this order. If permission is given to prepay freight and charge separately, the original freight bill
must accompany invoice. Additional charges for packing will not be accepted.
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Shipment Distance. Where manufacturers have distributing points in various parts ofthe country, shipment is expected
from the nearest distribution point to destination, and excess freight will be deducted from Invoice when shipments are
made from greater distance. i
Permits. Seller shall procure at sellers sole cost all necessary permits, certificates and licenses required by all applicable
laws, regulations, ordinances and rules ofthe state, municipality, territory or political subdivision where the work is
performed, or required by any other duly constituted public authority having jurisdiction over the work of vendor.
Seller further agrees to hold the City of Fort Collins harmless from and against all liability and loss incurred by them by
reason of an asserted or established violation ofany suchI laws, regulations, ordinances, rules and requirements.
Authorization. All parties to this contract agree that the'representatives are, in fact, bona fide and possess full and
complete authority to bind said parties.
LIMITATION OF TERMS. This Purchase Order expressly limits acceptance to the terry and conditions stated herein
set forth and any supplementary or additional terms and conditions annexed hereto or incorporated herein by reference.
Any additional or different terms and conditions proposed by seller are objected to and hereby rejected.
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2. DELIVERY.
PLEASE ADVISE PURCHASING AGENT immediately if you cannot make complete shipment to arrive on your
promised delivery date as noted. Time is ofthe essence. Delivery and performance must be effected within the time
stated on the purchase order and the documents attached hereto. No acts of the Purchasers including, without
limitation, acceptance ofpartial late deliveries, shall operaie as a waiver ofthis provision. In the event of anydelay, the
Purchaser shall have, in addition to other legal and equitable remedies, the option of placing this order elsewhere and
holding the Seller liable for damages. However, the Seller shall not be liable for damages as a result of delays due to
causes not reasonably foreseeable which are beyond its reasonable control and without its fault ofnegligence, such acts
of God acts of civil or military authorities, governmental priorities, fires, strikes, Flood, epidemics, wars or riots
provided that notice of the conditions causing such delay is given to the Purchaser within five (5) days of the time
when the Seller first received knowledge thereof. In the event ofany such delay, the date of delivery shall be extended
for the period equal to the time actually lost by reason of the delay.
3. WARRANTY.
The Seller warrants that all goods, articles, materials and' work covered by this order will conform with applicable
drawings, specifications, samples and/or other descriptions given, will be fit for the purposes intended, and performed
with the highest degree of care and competence in accordance with accepted standards for work of a similar nature.
The Seller agrees to hold the purchaser harmless from any loss, damage or expense which the Purchaser may suffer or
incur on account ofthe Sellers breach of warranty. The Seller shall replace, repair or make good, without cost to the
purchaser, any defects or faults arising within one (1) year or within such longer period of time as may be presenbed by
law or by the terms of any applicable warranty provided by the Seller after the date of acceptance of the goods
furnished hereunder (acceptance not to be unreasonably delayed), resulting from imperfect or defective work done or
materials furnished by the Seller. Acceptance or use of goods by the Purchaser shall not constitute a waiver of any
claim under this warranty. Except as otherwise provided in this purchase order, the Sellers liability hereunder shall
extend to all damages proximately caused by the breach of any of the foregoing warranties or guarantees, but such
liability shall in no event include loss of profits or loss of use. NO IMPLIED WARRANTY OR
MERCHANTABILITY OR OF FITNESS FOR PURPOSE SHALL APPLY.
4. CHANGES IN LEGAL TERMS.
The Purchaser may make changes to legal terns by written change order.
5. CHANGES IN COMMERCIAL TERMS.
The Purchaser may snake any changes to the terns, other than legal terms, including additions to or deletions from the
quantities originally ordered in the specifications or drawings, by verbal or written change order. If any such change
affects the amount due or the time of performance hereunder, an equitable adjustment shall be made.
6. TERMINATIONS.
The Purchaser may at any time by written change order, terminate this agreement as to any or all portions ofthe goods
then not shipped, subject to any equitable adjustment between the parties as to any work or materials then in progress
provided that the Purchaser shall not be liable for any claims for anticipated profits on the uncompleted portion ofthe
goods and/or work, for incidental or consequential damages; and that no such adjustment be made in favor ofthe Seller
with respect to any goods which are the Sellers standard stock. No such termination shall relieve the Purchaser or the
Seller of any of their obligations as to any goods delivered hereunder.
7. CLAIMS FOR ADJUSTMENT.
Any claim for adjustment must be asserted within thirty (30) days from the date the change or termination is ordered.
8. COMPLIANCE WITH LAW.
The Seller warrants that all goods sold hereunder shall have been produced, sold, delivered and furnished in strict
compliance with all applicable laws and regulations to which the goods are subject. The Seller shall execute and deliver
such documents as may be required to effect or evidence compliance. All laws and regulations required to be
incorporated in agreements of this character are hereby incorporated herein by this reference. The Seller agrees to
indemnify and hold the Purchaser harmless from all costs and damages suffered by the Purchaser as a result of the
Sellers failure to comply with such law.
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If and only to the extent this [Agreement] constitutes a "sole source government contract" within the meaning of
Article XXVIII ofthe Colorado Constitution ("Article XXVIII"), then the provisions of Section 15 of Article XXVIII
are hereby incorporated into this [Agreement]. In such a case, if the [Contractor] or any other person who is a
"contract holder" as defied in Section 2(4.5) of Article XXVIII intentionally violates Section 15 or Section 17(2) of
Article XXVIII, then the [Contractor] agrees it shall be ineligible to hold any sole source government contract, or
public employment with the state of Colorado or any of its political subdivisions, for three yeah.
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9. ASSIGNMENT.
Neither party shall assign, transfer, or convey this order, or irny monies due or to become due hereunder without the
prior written consent of the other party.
10. TITLE.
The Seller warrants full, clear and unrestricted title to the Purchaser for all equipment, materials, and items famished in
performance of this agreement, free and clear of any and all liens, restrictions, reservations, security interest
encumbrances and claims of othcrs.
11. NONWAIVER.
Failure of the Purchaser to insist upon strict performance of the terms and conditions hereof, failure or delay to
exercise any rights or remedies provided herein or by law, failure to promptly notify the Seller in the event of a breach,
the acceptance of or payment for goods hereunder or approval ofthe design, shall not release the Seller ofany ofthe
warranties,or obligations ofthis purchase order and shall not be deemed a waiver ofany right ofthe purchaser to insist
upogstnct performance hereof or any of its rights or remedies as to any such goods, regardless of when shipped,
received or accepted, as to any prior or subsequent default hereunder, nor shall any purported oral modification or
rescission of this purchase order by the Purchaser operate as a waiver of any of the terms hereof.
12. ASSIGNMENT OF ANTITRUST CLAIMS.
Seller and the Purchaser recognize that in actual economic practice, overcharges resulting from antitrust violations are
in fact home by the Purchaser. Theretofore, for good cause and as consideration for executing this purchase order, the
Seller hereby assigns to the Purchaser any and all claims it may now have or hereafter acquired under federal or state
antitrust laws for such overcharges relating to the particular goods or services purchased or acquired by the Purchaser
pursuant to this purchase order.
13. PURCHASERS PERFORMANCE OF SELLERS OBLIGATIONS.
If the Purchaser directs the Seller to correct nonconforming or defective goods by a date to be agreed upon by the
Purchaser and the Seller, and the Seller thereafter indicates its inability or unwillingness to comply, the Purchaser may
cause the work to be performed by the most expeditious means available to it, and the Seller shall pay all costs
associated with such work.
The Seller shall release the Purchaser and its contractors ofany tier from all liability and claims ofany nature resulting
from the performance ofsuch work.
This release shall apply even in the event of fault ofnegligence ofthe party released and shall extend to the directors,
officers and employees ofsuch party.
The Seller's contractual obligations, including warranty, shall not be deemed to be reduced, in any way, because such
work is performed or caused to be performed by the Purchaser.
14. PATENTS.
Whenever the Seller is required to use any design, device, material or process covered by letter, patent, trademark or
copyright, the Seller shall indemnify and save harmless the Purchaser from any and all claims for inftingement byreason
ofthe use ofsuch patented design, device, material or process in connection with the contract, and shall indemnify the
Purchaser for any cost, expense or damage which it may be obliged to pay by reason ofsuch infringement at any time
during the prosecution or after the completion ofthe work. In case said equipment, or any part thereofer the intended
use of the goods, is in such suit held to constitute infringement and the use of said equipment or part is enjoined, the
Seller shall, at its own expense and at its option, either procure for the Purchaser the right to continue using said
equipment or parts, replace the same with substantially equal but non -infringing equipment, or modify it so it becomes
non -infringing.
15. INSOLVENCY.
If the Seller shall become insolvent or bankrupt, make an assignment for the benefit ofereditors, appoint a receiver or
trustee for any ofthe Sellers property or business, this order may forthwith be canceled by the Purchaser without
liability.
16. GOVERNING LAW.
The definitions of terms used or the interpretation of the agreement and the rights of all parties hereunder shall be
construed under and governed by the laws ofthe State of Colorado, USA.
The following Additional Conditions apply only in cases where the Seller is to perform work hereunder, including the
services of Sellers Representative(s), on the premises of others.
17. SELLERS RESPONSIBILITY.
The Seller shall carry on said work at Seller's own risk until the same is fully completed and accepted, and shall, in case
of any accident, destruction or injury to the work and/or materials before Seller's final completion and acceptance,
complete the work at Seller's own expense and to the satisfaction ofthe Purchaser. When materials and equipment are
furnished by others for installation or erection by the Seller, the Seller shall receive, unload, store and handle same at
the site and become responsible therefor as though such materials and/or equipment were being famished by the Seller
under the order.
18. INSURANCE.
The Seller shall, at his own expense, provide for the payment of workers compensation, including occupational disease
benefits, to its employees employed on or in connection with the work covered by this purchase order, and/or to their
dependents in accordance with the laws of the state in which the work is to be done. The Seller shall also carry
comprehensive general liability including, but not limited to, contractual and automobile public liability insurance with
bodily injury and death limits of at least $300,000 for any one person, $500,000 for any one accident and property
damage limit per accident of $400,000. The Seller shall likewise require his contractors, if any, to provide for such
compensation and insurance. Before any of the Sellers or his contractors employees shall do any work upon the
premises of others, the Seller shall furnish the Purchaser with a certificate that such compensation and insurance have
been provided. Such certificates shall specify the date when such compensation and insurance have been provided.
Such certificates shall specify the date when such compensation and insurance expires. The Seller agrees that such
compensation and insurance shall be maintained until after the entire work is completed and accepted.
19. PROTECTION AGAINST ACCIDENTS AND DAMAGES.
The Seller hereby assumes the entire responsibility and liability for any and all damage, loss or injury of any kind or
nature whatsoever to persons or property caused by or resulting from the execution ofthe work provided for in this
purchase order or in connection herewith. The Seller will indemnify and hold harmless the Purchaser and any or all of
the Purchasers officers, agents and employees from and against any and all claims, losses, damages, charges or
expenses, whether direct or indirect, and whether to persons or property to which the Purchaser maybe put or subject
by reason ofany act, action, neglect, omission or default on the part ofthe Seller, any ofhis contractors, or any ofthe
Sellers or contractors officers, agents or employees. In case any suit or other proceedings shall be brought against the
Purchaser, or its officers, agents or employees at any time on account or by reason ofany act, action, neglect, omission
or default ofthe Seller ofany of his contractors or any of its or their officers, agents or employees as aforesaid, the
Seller hereby agrees to assume the defense thereof and to defend the same at the Sellers own expense, to pay any and
all costs, charges, attorneys fees and other expenses, any and alljudgments that maybe incurred by or obtained against
the Purchaser or any of its or their officers, agents or employees in such suits or other proceedings, and in case
judgment or other lien be placed upon or obtained against the property ofthe Purchaser, or said parties in or as aresult
ofsuch suits or other proceedings, the Seller will at once cause the same to be dissolved and discharged by giving bond
or otherwise. The Seller and his contractors shall take all safety precautions, furnish and install all guards necessary for
the prevention of accidents, comply with all laws and regulations with regard to safety including, but without
limitation, the Occupational Safety and Health Act of 1970 and all rules and regulations issued pursuant thereto.
Revised 04/2009
THE CITY OF FORT COLLINS
Light and Power Department
P.O. Box 580
Fort Collins, CO 80522
SPECIFICATION NO: 368-105
TITLE: OVERHEAD -TYPE, SINGLE PHASE
i
DISTRIBUTION TRANSFORMERS
WITH SEPARABLE
INSULATED LOAD BREAK HIGH -VOLTAGE CONNECTORS
PREPARED BY:
Tim M. Sagen, S ndards Engineering Manager
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ORIGINATED: March 3, 1973
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REVISED: j February, 2003
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Rev. Sym. KK
REVISION DESCRIPTIONS
REVISION DESCRIPTION (Previous revisions on file)
APPROVED
Rev. II
• Updated Table of Contents
Sagen/Coram
• Paragraph 3.2.2.1.1; 3.2.4.2. - Editorial
7/27/94
• Paragraph 3.2.3.1. - updated ANSI reference
• Paragraph 3.2.3.2. - changed lead type terminals to stud type, updated ANSI
reference to 1985.
• Paragraph 3.2.5.2 - Deleted reference to Table II
• Paragraph 3.2.5.6. - Updated ANSI reference; changed "non -PCB" reference to
"contains < 1 ppm PCB
• Paragraph 3.2.6.1. - Change Table III to Figure 2
• Paragraph 3.2.7. - Delete ratio requirement, update ANSI reference to 1987.
• Paragraph 4.2.2. - Change impedance tolerance to within range specified.
• Table 1: Change lead type LV terminals to stud type. Add impedance ranges on 131,
151, and 156.
• Add Figure 1
• Changes Table III to Figure 2
• Appendix C — delete tank coating from table.
Rev. JJ
Sagen 9/4/97
• Paragraph 5.0 —Added pallet requirements
Rev. KK
Sagen 2/20/2003
• Update date specific references to ANSI standards.
• Add reference to Central Moloney secondary bushings.
• Add Central Moloney to Approved Manufacturers list in Appendix C.
2
368-105
Rev. Sym. KK
TABLE OF CONTENTS
REVISIONDESCRIPTIONS...................................................................................................................................................2
1 SCOPE.................................................................................................................................................................................4
2 APPLICABLE DOCUMENTS..............................................................................................................................................4
3 REQUIREMENTS.................................................................................................................................................................4
3.1 GENERAL REQUIREMENTS FOR DESIGN.............................................................................................................................4
3.2 SPECIFIC REQUIREMENTS FOR DESIGN
..............................................................................................................................4
3.2.1 FUNCTIONAL DESCRIPTION
.............................................................................................................................................
4
3.2.2 RATINGS...............................................................................................................................................................................
4
3.2. 3 BUSHINGS AND TERMINALS.............................................................................................................................................
5
3.2.4 NEUTRAL TERMINATION...................................................................................................................................................
6
3.2.5 ACCESSORY EQUIPMENT..................................................................................................................................................
6
3.2.6 TANK.....................................................................................................................................................................................
8
3.2.7 LOSSES..................................................................................................................................................................................
9
4 QUALITY ASSURANCE......................................................................................................................................................9
4.1 GENERAL....................................................................................................................................................................................
9
4.1.1 RESPONSIBILITY FOR INSPECTION
.................................................................................................................................
9
4.1.2 TEST REPORT.......................................................................................................................................................................
9
4.2 TEST CONDITIONS....................................................................................................................................................................9
4.2.1 REFERENCE TEMPERATURE
............................................................................................................................................
9
4.2.2 TOLERANCE ONIMPEDANCE VOLTAGE.........................................................................................................................
9
4.2.3 TOLERANCE ON IMPEDANCE VOLTAGE ON TAP.......................................................................................................
9
4.3 NOT USED.................................................................................................................................................................................10
4.4 TESTS
.........................................................................................................................................................................................10
5 PREPARATION FOR DELIVERY......................................................................................................................................10
APPENDIX A - TRANSFORMER STOCK NUMBER CODING..........................................................................................11
APPENDIX B - TANK COATING COMPARISON...............................................................................................................12
APPENDIX C -APPROVED MANUFACTURERS..............................................................................................................13
TRANSFORMER LOSS EVALUATION FORM- AVERAGE LOSSES................................................................................14
INDIVIDUAL TRANSFORMER LOSS EVALUATION FORM..............................................................................................15
SPECIAL CONDITIONS ANDSUPPLEMENTAL INSTRUCTIONS TO BIDDERS.............................................................16
3
368-105
Rev. Sym. KK
SPECIFICATION FOR OVERHEAD -TYPE, SINGLE PHASE DISTRIBUTION TRANSFORMERS
WITH SEPARABLE INSULATED LOAD BREAK HIGH -VOLTAGE CONNECTORS
1 SCOPE
This Specification establishes the minimum requirements for single phase, 60 hertz, mineral -oil -filled self cooled
(O.I.S.C.) overhead -type distribution transformers with separable insulated load break high voltage connectors; rated
250 kilovolt -amperes (KVA) and smaller; high -voltage: 7620/13200Y and dual voltage 7620/13200Y x 2400/4160Y; low
voltage 120/240, 240/480, 277 volts, and 4160Y/2400.
2 APPLICABLE DOCUMENTS
The following American National Standards (ANSI) for Distribution, Power, and Regulating Transformers and Shunt
Reactors form a part of this Specification:
• General Requirements C57.12.00
• Overhead -Type Distribution Transformers
• Terminal Marking and Connections
• Terminology
• Test Code
• Appendix to ANSI C57.12.20
• Separable Insulated Connectors
3 REQUIREMENTS
3.1 GENERAL REQUIREMENTS FOR DESIGN
C57.12.20
C57.12.70
C57.12.80
C57.12.90
C57.91
ANSI/IEEE 386
Unless otherwise stated in this Specification, all transformers shall be new and shall conform to the American
National Standard Requirements for Overhead -Type Distribution Transformers, ANSI C57.12.20 - latest
revision. In case of conflict, the requirements of the following documents shall apply in the priority shown:
1. This Specification.
2. Referenced ANSI Standards.
Approved manufacturers are listed in Appendix C. For purposes of warranty and service, any distributor bidding
must be an authorized distributor appointed by an approved manufacturer to serve the Fort Collins area.
3.2 SPECIFIC REQUIREMENTS FOR DESIGN
3.2.1 FUNCTIONAL DESCRIPTION
Transformers of this design are for installation on an underground power system utilizing separable
insulated connectors and may be installed in underground vaults subject to submersion. They may also
be padmounted under an enclosure, or pole mounted. The transformer tank, cover, and all external
appurtenances shall be of corrosion -resistant material, unless they are otherwise rendered corrosion
resistant.
3.2.2 RATINGS
3.2.2.1 KILOVOLT -AMPERE -RATINGS
3.2.2.1.1 NAMEPLATE RATING
Kilovolt -ampere ratings are continuous and based on not exceeding either a 65°C average winding
temperature rise or an 80°C hot spot temperature rise. The temperature rise of the insulating oil shall
not exceed 65° when measured near the top of the tank. The KVA rating shall be regarded as a test
rating which defines an output which can be taken from the apparatus under the prescribed conditions
of test within the limitations of all applicable standards. KVA ratings shall be in accordance with Table-
1.
4
368-105
Rev. Sym. KK
3.2.2.1.2 ADDITIONAL SUPPLEMENTAL LOADING
Additional supplemental loading may be carried as recommended by ANSI C57.91.
3.2.2.2 VOLTAGE RATINGS
Secondary and primary voltage ratings shall be in accordance with Table 1.
3.2.2.3 IMPEDANCE
Nominal impedance voltage shall be in accordance with Table 1 of this specification. Completed units may
vary from the specified nominal up to the tolerance specified in ANSI C57.12.00.
3.2.2.4 BASIC IMPULSE INSULATION LEVELS
The high voltage BIL shall be 95 kV. The low voltage BIL shall be 30 kV.
3.2.3 BUSHINGS AND TERMINALS
All internal leads and connections, on both high and low voltage, shall be sized to carry full ampere
rating, including overload rating of transformer.
3.2.3.1 HIGH VOLTAGE TERMINALS
The number of high voltage terminals required is specified in Table 1. High -voltage bushing wells shall be
cover mounted 200A load -break interface 8.3/14.4 kV bushings in accordance with ANSI/IEEE Std. 386.
3.2.3.2 LOW VOLTAGE TERMINALS
Terminal type and number shall be in accordance with Table 1 of this specification. Eyebolt and spade
terminals shall be singly mounted sidewall type. Stud type terminals shall be singly mounted on the
sidewall at 5.5 to 7.5 inch center to center spacing. Stud type terminals shall be equivalent to Central
Moloney type 7013 having dimensions in accordance with Figure 1 of this specification or Central Moloney
type 70105850, shall have a copper stud, and shall be internally or externally clamped. All non-metallic
components of the terminals shall be of a material resistant to ultra -violet degradation. Mounting hardware
shall be corrosion resistant. Secondary terminals for transformers with secondary voltages above 480V
shall be cover mounted 200A load -break interface 8.3/14.4 kV bushings in accordance with ANSI/IEEE Std
386.
See below
Figure 1
1.38" dia.
WA Rating
Thread Size
Min. Length
25 - 75
0.625" —11 UNC-2A
1.25"
100 - 167
1.0" — 14 UNC-2A
1.75"
5
368-105
Rev. Sym. KK
3.2.4 NEUTRAL TERMINATION
3.2.4.1 On transformers having one high voltage bushing, the HZ end of the winding shall be securely grounded
internally.
3.2.4.2 On units having three external eyebolt or spade type low -voltage terminals, the XZ connection of the
winding shall be isolated and an adequate external cooper ground strap shall be provided from the neutral
bushing to a standard tank ground pad.
On units having lead type low -voltage terminals, the X2 connections of the winding shall be connected to
the tank internally and such connection shall be indicated on a label next to the XZ lead as well as on the
nameplate.
Ground connections shall be suitably sized for the short-circuit rating of the transformer as defined in ANSI
C57.12.00.
3.2.4.3 An adequate stainless steel connection shall provide electrical continuity between the tank and the cover.
3.2.5 ACCESSORY EQUIPMENT
In addition to the requirements of ANSI, accessory equipment shall be provided in accordance with
Table 1 and the following details.
3.2.5.1 Current -protecting (CP) when specified in Table 1 shall include internal weaklink primary fuse, secondary
breaker, signal light, and emergency control handle. Internal fusing (internal) when specified in Table 1
shall include an internal partial range current limiting fuse in conjunction with an internal eutectic
(temperature sensitive) weak link fuse.
3.2.5.2 When required by Table 1, an RTE Bay-o-net fuse and internally mounted ELSP partial range current
limiting fuse(s) shall be furnished. Bay-o-net fuses shall be top mounted or sidewall mounted as required in
Table 1.
3.2.5.3 When the transformer is specified as a dual voltage unit, an externally operated dual voltage switch shall
be provided.
3.2.5.4 Taps, when required, shall be full capacity above and below normal and shall be provided with an
externally operated tap changer switch. On dual voltage transformers, taps shall be furnished on the top
voltage only.
3.2.5.5 Cover mounted, pocket type, cable accessory, parking stand for a loadbreak stand off device shall be
provided.
3.2.5.6 Cover mounted instruction nameplate conforming to 5.12 of ANSI C57.12.00-1987, Nameplate A, shall be
provided. Also, on the nameplate or label affixed near it, the manufacturer shall indicate that the dielectric
fluid contains less than 1 ppm PCB.
6
368-105
Rev. Sym. KK
TABLE 1
STOCK
NO.368-
SERIAL
KVA
% Z
HIGH VOLTAGE
LOW VOLTAGE
PROTECTION
TYPE
RATING
TERMINALS)
TAPS
RATING
TYPE AND
NUMBER OF
TERMINALS
ABOVE
BELOW
-111
10
TBD
13200 GRDY/7620
One bushing well
120/240*
Three Eyebolt
CP
-131
25
1.77 to 2.16
13200 GRDY/7620
One bushing well
120/240*
Three CU stud
CP
-151
50
1.77 to 2.16
13200 GRDY/7620
One bushing well
120/240*
Three CU stud
CP
-155
50
TBD
17620/13200Y
Two bushing wells
2-2'/2%
2-2'/%
120/240'
Three 4 hole
H„
S
-156
50
TBD
13200 GRDY/7620
One bushing well
240/480
Three Eyebolt
CP
CP
-161
75
1.86 to 2.27
13200 GRDY/7620
One bushing well
120/240*
Three CU stud
-171
100
TBD
13200 GRDY/7620
One bushing well
120/240*
Three Eyebolt
Internal
-174
100
TBD
13200 GRDY/7620
One bushing well
2-2'/%
2-2'/%
120/240
Four 6 hole "J"
Internal
-175
100
TBD
7620/13200Y
Two bushing wells
2-2'/2%
2-2'/2%
120-240
Four 6 hole "J"
S
-176
100
TBD
13200 GRDY/7620
One bushing well
2-2'/2%
2-2'/%
277
Two 4 hole "H"
Intemal
-177
100
TBD
17620/13200Y
Two cover mounted
bushing wells
2-2,/2%
2-2'/%
2400/4160Y
Two cover
mounted
bushing wells
S
-184
167
TBD
13200 GRDY/7620
One bushing well
2-2'/2%
2-2'/2%
120/240
Four 6 hole "J"
Internal
-185
167
TBD
7620/13200Y
Two bushing wells
2-2'/%
2-2'/2%
120/240
Four 6 hole "J"
S
-186
167
TBD
13200 GRDY/7620
One bushing well
2-2'/2%
2-2'/2%
277
Two 4 hole "H"
Internal
-189
167
TBD
13200 GRDY/7620
One cover mounted
bushing wells
4160GRDY/ 2400
One cover
mounted
bushing well
S
-195
250
TBD
7620/13200Y
Two bushing wells
2-2'/2%
2-2'/2%
120/240
Four 6 hole "J"
S
-196
250
TBD
13200 GRDY/7620
One bushing well
2-2'/2%
2-2'/2%
277
Two 6 hole "J"
Internal
-231
25
TBD
13200 GRDY/7620x
4160 GRDY/2400
One bushing well
120/240*
Three Eyebolt
CP
-238
25
TBD
13200 GRDYl7620x
4160 GRDY/2400
One bushing well
2-2'/2%
2-2'/2%
240/480
Three Eyebolt
CP
-251
50
TBD
13200 GRDY/7620X
4160 GRDY/2400
One bushing well
120/240*
Three Eyebolt
CP
-258
50
TBD
13200 GRDYf7620X
4160 GRDY/2400
One bushing well
2-2'/% 1
2-2Y2%
240/480
Three Eyebolt
CP
*Reconnectable in field for 120/208 volt service
(1) CP = current -protecting (see para. 3.2.5.1); S = conventional; Internal - current limiting protection (see para. 3.2.5.1)
TBD = To be Determined
7
368-105