Loading...
HomeMy WebLinkAbout102795 WESCO DISTRIBUTION INC - PURCHASE ORDER - 8851059Date 02/20/08 City of For Co�ms Page Number 1 Vendor 10279$ City of Fort Collins WESCO DISTRIBUTION INO WE-SCO AURORA UTILITY 1$401 E 33RD DRIVE STE 10 AURORA CO $001 T Purchase Order Number 8851059 Ship To UTILITY SERVICE CENTER - WAREHOUSE CITY OF FORT COLLINS 700 WOOD ST PORT COLLINS CO 80521 -- --•--•-- ouyer Uic K,UF'Al- Purchase Order number must appear on invoices, packing lists labels, bills of lading and all correspondence Note 74o,,f w Z--ZI nos Line Qty UOM Description Unit Price Extended Price 1 5 EA T3000016 transformer 150kVA 480Y/277 3P pad T3000016 YARD TRANSFORMER 150 kVA PAD MOUNTED COMPARTMENTAL TYPE THREE PHASE DISTRIBUTION WITH SEPARABLE INSULATED LOAD BREAK HIGH VOLTAGE CONNECTORS HIGH VOLTAGE RATING 13200 GRDY/7620 LOW VOLTAGE RATING 480Y/277 SERIAL NUMBER 016 TO BE IN ACCORDANCE WITH SPECIFICATION #368 300 016 REVISIONMM BID 5854 MFG ABB GUARANTEED NO LOAD LOSS 425 GUARANTEED FULL LOAD LOSS 954 GUARANTEED TOTAL LOAD LOSS 1379 IMPEDANCE 21% 9 267 000 46 335 00 REV SYM MM 3 2 2 4 HIGH VOLTAGE TAPS A no load tap changer with external operating handle shall provide two 2'/ full capacity taps above and below normal The operating handle shall be mounted in the primary compartment 3 2 2 5 BUSHING WELLS AND TERMINALS 3 2 2 5 1 The number location and arrangement of bushing wells terminals and parking stands shall be as shown in Fig 1 and Fig 5 of this specification All low voltage bushings and high voltage wells shall be externally clamped and shall have leads of sufficient length to allow them to be changed without removing he cover Welded bushings and wells are expressly prohibited 3 2 2 5 2 High voltage bushing wells shall be 200A load break interface 8 3/14 4 kV bushings in accordance with ANSI/IEEE Std 386 3 2 2 5 3 Low voltage bushing arrangement and spacing shall be staggered as shown in Fig 5 of this Specification 3 2 2 5 4 The low voltage neutral shall be a fully insulated bushing Aground pad shall be provided on the outer surface of the tank and a removable copper ground strap shall be provided and connected between the low voltage neutral bushing and the ground pad 3 2 2 5 5 The high voltage neutral shall be connected to the low voltage neutral internally with provision for opening this connection for testing 3 2 2 6 ACCESSORY CABINET 3 2 2 6 1 The accessory cabinet shall consist of a high voltage and low voltage compartment generally constructed in accordance with applicable ANSI specifications and dimensioned in accordance with Fig 1 of this Specification 3 2 2 6 2 Cabinet doors shall be hinged removable and lockable Stainless hinge pins shall be provided 3 2 2 7 ACCESSORY EQUIPMENT Accessory equipment shall be provided in accordance with Table 1A and the following details 3 2 2 7 1 Suitable lack bosses or equivalent lacking facilities shall be provided on the tank Vertical clearance for a lack shall be 1'% inches minimum 3'/2 inches maximum 3 2 2 7 2 The transformer base shall be arranged for rolling in two directions Parallel to and at right angles to the centerline of the high voltage bushings 3 2 2 7 3 Four lifting lugs shall be provided These lugs shall be adequate strength and size and arranged on the tank to provide a suitable lift for the completely assembled unit 3 2 2 7 4 The base of the assembly shall be provided with suitable means for mounting the unit on the pad An internal flange shall be provided at the base of the accessory compartment to provide means for mounting the unit on the pad (Fig 1) 3 2 2 7 5 Terminal designations are shown in Figure 1 The identification of terminal connections shall be shown on the instruction nameplate Instruction nameplate shall be corrosion resistant located in the low voltage compartment and shall be readable with cables in place Where the nameplate is mounted on a removable part the manufacturers name and transformer serial number shall be permanently affixed to a non removable part Instruction nameplate shall contain the information specified in ANSI C57 12 00 2000 paragraph 5 12 In addition either on the nameplate or label affixed near it the manufacturer shall indicate that the dielectric fluid is non PCB 8 368 300 REV SYM MM 3 2 2 7 6 An automatic pressure relief device shall be located within the compartment This device shall meet the following requirements • % NPT or larger male Inlet Port • Exposed parts of weather and corrosion resistant materials • Non deteriorating gasket and o-nng material • Manual pull ring able to withstand 25 pound force minimum • Body able to withstand 100 pound force minimum • Bug shield • Cracking pressure of 10 t 2 psig • Resealing pressure of 6 psig minimum • Zero leak rate from resealing pressure to —8 psig • Minimum flow rate of 35 SUM at 15 psig 3 2 2 8 OIL PRESERVATION Transformers shall be of sealed tank construction Sealed tank construction is that which seals the interior of the tank from the atmosphere and in which the gas plus the oil volume remains constant The transformer will remain effectively sealed for a top oil temperature range of —32 C to 105 C 3229TANKS The tank shall be domed or sloped to shed water and shall be of sufficient strength to support a minimum of 500 Ibs Construction of the tank shall be in accordance with ANSI C57 12 26 1992 Section 7 except bolted cover is preferred 3 2 2 9 1 If main cover is welded adequate handhole(s) shall be provided Handholes shall be concealed Bolted on covers shall be adequately gasketed and tamperproof Main cover bolts may be exposed however where cover bolts are exposed the comer bolts shall be welded or otherwise rendered tamperproof 3 2 2 9 2 Tank grounding provision shall be in accordance with paragraph 7 6 4 of ANSI C52 12 26 1992 3 2 2 9 3 Locking bolts shall be pentahead style 3 2 2 10 OVERCURRENT PROTECTION Overcurrent protection shall consist of a single element current sensing bay o-net fuse link in series with an ELSP current limiting backup fuse Fuses shall be sized as shown in Table 2 Table 2 — Fusina Requirements Expulsion Fuse Continuous Current Limiting Fuse Stock WA Current Rating Continuous Current Rating Number Ca acl Part Number' Part Number*) 368 300 008 75kVA 10A 30A 368 300 009 4000353C06 354403OM61M 368 300 015 150kVA 15A 40A 368 300 016 4000353C08 3544040M61M 368 300 030 300kVA 25A 65A 368-300 031 4000353C10 3544065M61M 368-300 051 500kVA 40A 100A 4000353C12 3544100M71M 368 300 075 750kVA 65A 125A 368 300 076 750kVA (4000353C14) (3544125M71 M) 368 300 100 1000kVA 368-300 101 1000kVA 368-300 151 1500kVA 140A 250A Parallel 125A fuses 368 300 201 2000kVA 4000353C17 3544125M71M 368 300 251 2500kVA 125A Hi Amp OL Link C05CB 250A Parallel 125A fuses 3544125M71 M Fuse snaii be as specniea in me tabie above or shall be an equivalent as approved in writing by Electric Standards Engineering 9 368 300 REV SYM MM 3 2 2 11 COMPONENTS FOR LOOPED PRIMARY The minimum current carrying capability of components for the looped primary cable system shall be 200 amperes (continuous) and 10 000 amperes symmetrical (momentary) 3 2 2 12 AUDIBLE SOUND LEVEL The audible sound level shall be in accordance with NEMA Standard TR1 3 2 2 13 BASE PLAN The base plan of a completely assembled unit shall be such that it can be installed on a pad of the dimensions shown in Fig 6 of this specification 3 2 2 14 PAINT 3 2 2 14 1 Surfaces to be painted shall be blast cleaned (commercial blast) to provide a clean dry surface free of dirt dust chalk loose paint rust grease and any other contaminants 3 2 2 14 2 EEI Finishing Guidelines specification shall apply Finish coat shall be Desert Tan Munsell #10YR6 0/3 0 glossy 3 2 2 15 SAFETY LABELS The manufacturer shall not apply NEMA 260 Safety Labels The Purchaser Will apply custom warning labels after delivery 3 2 2 16 ANGULAR DISPLACEMENT Per Fig 10(b) of ANSI C5712 26-1992 10 368 300 270 FLANGEW4 MIN 1112 MAX lnOOC X I MIN (F- - -(F- II(� X0 X2 45 85 1 IN 4L5 38 0 MIN KVA RATINGS LOW VOLTAGE RATINGS COMPARTMENT DIMENSIONS ( MINIMUM) G BUSHING HEIGHT A B 75150 ALL 2325 2 2255500 ALL 28 31 75 10W 481W= 20BY1120 28 48 15 2500 4e0v/227 28 40 NOTE Denotes ms da E mans See F 15 All dlmena s nInches) Maxlmem dlmensa s h II allow we Inch clearance Sam WW a Pad (FV 8) MIN Figure 1 -Accessory compartment & Bushing Dimensions (Config 1) REV SYM MM 11 368 300 2 65 MIN TANK SURFACE TANKSURFACE I ' I I I I 1R I I j I I I I I I I p 11 • 118 -0 INSIDE Cable Accessory Puking Stand Figure 1A — Cable Accessory Parking Stand Detail Figure 2 (Config 2) - DELETED 7/92 Figures 3 & 4 - DELETED 11/00 Ref now to ANSI C57 12 26 - 1992 figures 9(a) & 9(b) REV SYM MM 12 368 300 4011„ A A A 40" W Xj-� X3 Xp X2 I CL / B CL REV SYM MM 6" RADIUS TYPICAL 3 PLACES FKVA RATINGS LOW VOLTAGE RATINGS A B 75-150 ALL 475 8 225-500 ALL 6 8 750-2500 480/277, 208Y/120 6 10 Figure 5 - Staggered Low - Voltage Bushing Arrangement (all dimensions minimum inches) NOTE An area having a 6 inch radius around each bushing shall remain clear of obstructions such as gauges, etc 13 368 300 REV SYM MM KVA SERIAL PAD DIMENSIONS (inches) A B C D E F 75 006thru-009 75 55 40 21 15 61 150 015 75 55 40 21 15 61 150 016 75 55 40 21 15 61 300 030 75 55 40 21 15 61 300 031 75 55 40 21 15 61 500 050 75 55 40 21 15 61 500 051 75 55 40 21 15 61 750 076 075 85 72 49 23 15 67 1000 101 100 85 72 49 23 15 67 1500 151 101 87 51 23 15 76 2000 201 107 88 51 23 15 79 2500 251 107 88 1 51 1 23 15 1 79 Fig 6 —Pad Dimensions 14 368 300 REV SYM MM TABLE 1A ACCESSORY EQUIPMENT ACCESSORY KVA 75 160 300 600-2600 Tap changer handle in HV compartment X X X Instruction nameplate in LV compartment X X X Jacking provisions X X X Provisions for rolling in two directions X X X Lifting lugs X X X Provisions for mounting on pad X X X Arrester mounting provisions Grounding provisions in both compartments X X X 1 oil drain plup X 1 oil drain valve with sampling device X X Upper filter press and filling plug (or cap) (1) X X X Provisions for oil gauge X Provisions for pressure vacuum gauge X X Oil gauge X Thermometer X X X Secondary CT mounting holes (4 holes on 4 3/8 x 5 5/8 centers) X X X Manual/automatic pressure relief valve X X X 15 368 300 REV SYM MM 3 3 SPECIFIC REQUIREMENTS FOR DESIGN OF RADIAL -FEED Units 3 3 1 FUNCTIONAL DESCRIPTION The transformer shall be a three phase pad mounted radial feed safe break deadfront type for use on a 13 8 kV grounded "Y" distnbution system 3 3 2 DESIGN AND CONSTRUCTION The requirements for radial feed transformers shall be the same as those of loop -feed with the following exceptions 3 3 2 1 RATINGS Table 3 Radial Food Tmnal!A .nr Rai."tee Stock No kVA LOW Volta a Impedance Bushln T e/Confi HI h Volta a Low Volta e 368-300- 006 75 208Y/120 1 9% Q ®6 368-300- 007 75 480Y/277 1 9% OO ®© w Per Figures 5A & 101 ANSI C57 12 26 1992 (In Line) EXCEPTION high voltage bushings shall be 32 36 inches above the base of the transformer ® Figures 9(a) & 9(d) of ANSI C57 12 26 1992 (stud with 4 hole pad) © Figure 8(a) of ANSI C57 12 26 1992 (Staggered) 3 3 2 2 ACCESSORY CABINET The accessory cabinet shall be dimensioned in accordance with Fig 7 of ANSI C57 12 26 1992 4 QUALITY ASSURANCE 41 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 12 TEST REPORT The manufacturer shall furnish to the purchaser certified copies of the results of all tests prior to payment Copies shall be sent to the Design Section as well as with the invoice Unsigned copies are not acceptable even if accompanied by a signed cover letter The Quality Control Manager shall review and sign each test report 4 2 TEST CONDITIONS Unless otherwise specified testing defined in Section 4 6 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 Tolerance shall be as specified in ANSI C57 12 00 16 368 300 REV SYM MM 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 4 3 FUNCTIONAL TESTS Functional tests shall consist of those tests and related requirements as cross referenced in Table 4 and shall be performed on each unit except Temperature and Noise Tests which shall be performed on one unit of each design (KVA) per order Table d Funr.Hnnal Taste TEST TEST PARAGRAPH REQUIREMENT OR REFERENCE Examination Of Product 46 3 0 3 1 3 2 3 3 hisspecification) Ratio 46 ANSI C57 12 00 Section 8 Polarity And Phase Relation 46 ANSI C57 12 00 Section 8 Excitation Loss 46 ANSI C57 12 00 Section 8 Excitation Current 46 ANSI C57 12 00 Section 8 Impedance & Load Loss 46 ANSI C57 12 00 Section 8 Temperature Tests 46 ANSI C57 12 00 Section 8 Dielectnc Tests 4 6 1 3 2 2 2 This specification) Imp m ulse Tests 462 3 2 2 2 This specification) Leak Testing 463 3 2 2 8& 3 2 2 9 hisspecification) Noise Testing 464 3 2 2 12 This specification) One unit per assign per oraer 4 4 TEST METHODS - FUNCTIONAL TESTS Each completed unit shall be inspected to determine compliance with respect to dimensions material workmanship construction and marking and routine tests on all units shall be made as specified in Section 8 of ANSI Standard C57 12 00 and in ANSI Standard C57 12 90 In addition to routine tests the following test requirements and/or modifications shall apply 4 4 1 DIELECTRIC TESTS Induced and applied potential Dielectric Tests shall be performed in accordance with ANSI C57 12 00 and C57 12 90 The low voltage windings shall have a test potential to ground of 10 000 volts for one minute The test potential between high voltage windings shall be 34 000 volts for one minute 4 4 2 IMPULSE TESTS ANSI Standard Impulse Tests shall be performed Full Wave Impulse Test shall use a 1 5 x 50 microsecond wave 4 4 3 LEAK TESTING The transformer tank shall be filled with oil and tested for air and oil leaks under (1) 4 psig vacuum for Y hour (2) 7 psig pressure for 24 hours in the sequence indicated An alternate method of leak testing may be performed by injecting halogen gas under 10 psig and detecting leaks through the use of a halogen detector (Note the automatic/manual pressure relief device must be removed for this test) 4 4 4 NOISE TESTING Noise testing shall be conducted in accordance with applicable NEMA Standards 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 fully palletized in four way universal pallets with 28 minimum openings to facilitate handling from any side Pallets shall be independent of the transformer The Supplier shall give 24 hour notice prior to delivery for any shipments where an individual transformer weighs over 4 000 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 17 368 300 aCity of Fort Collins City ofF� old Page Number 2 Vendor 192796 WESCO DISTRIBUTION INC WESCO AU RORA tJ nury 16401E 33RD DRIVE STE 10 AURORA CO 80611 Date 02/20/08 Purchase Order Number 8851059 Ship To UTILITY SERVICE CENTER - WAREHOUSE CITY OF PORT COLLIN$ 700 WOOD ST FORT COLLIN$ CO 00521 "'6'y—.•a Buyer DICK OPAL Purchase Order number must appear on invoices packing lists, labels bills of lading and all correspondence Note Line Qty UOM Description Unit Price Extended Price ESCALATION IS NOT APPLICABLE DELIVERY Allocation May June Delivery PRICING DATED 2 15 08 Total City of Fort CiAl# Director of Purchasing and Risk Management This order is valid over $2000 unless signed by James B O Neill II CPPO FNIGP City of Fort Collins Purchasing PO Box 580 Fort Collins CO 80522 0580 $46 335 00 City of Fort Collins Accounting Department PO Box 580 Fort Collins CO 80522 0580 REV SYM mm 6 DEFINITIONS AND ABBREVIATIONS • Vendor or Supplier The manufacturer and/or manufacturer's agent supplying or quotmg on the specified article • Article Unit, Assembly All refers to the equipment defined by this specification • DC or d c Direct Current • AC or a c Alternating Current • •C Degree Celsius (Centigrade) • OF Degree Fahrenheit • W 1000 volts • CPS or Hz Cycles per second • psig Pounds per square inch gauge • V or v Volts • WA 1000 Volt amperes 18 368 300 REV SYM MM APPENDIX A Typical pad designs are shown in Figures 1A through 3A The dimensions in inches of Figures 1A through 3A will fit the minimum compartments on transformers covered by this Specification as well as the maximum transformer envelope 19 368 300 REV SYM MM 05 --� 55 T3 15 PRIMARY SEC 6 FRONT v T3 26 27 -- 13 — L9 FOUR w3 REPAIRLENGTH AND WIDTH ID � 40 �3 7 5/8 �_ j[3 Notes on Pad Materal — I Concrete must be 3000 ps mamum 2 Me no an coo se egg egate s ze 1 172 ches Space requreme is to pad and prmnry swtchup cob net will generally be 9 X 12 Facto s to be can dersd local a the pod clude — 1 Access b I ty — The 1 a sfo m pad shall be access ble to I ne boom t ucks eq aped fa the stallaton a d emo of a hea y Ironsfo me s S on access b I ty shall not equ e t us on on copse t p ape ty 2 P a of ty of BuId as Walls Bar e s and/or 0 erho as — addlton to the Cleo ances requ red to Installotor and emo of the m n mum clew a e n f o t of the t onsfc me pad shall be e ant (8) feet and the m n an an lea a ce front all othe s des shall be three (3) feet If the b Id g has an o e no a clearance to the edge of the t a sfa met pad shall be measu es horizontally I am the a ter edge of the o erho" l Transfo me s th augh 300 NSA may be retailed a de the ove hang ( the e tcol clearance betwee the pad a d the o erho a s at least 25 feet a d the Iacato s access ble to I ne boom trucks 3 Codes and Sta da as — In add to to the abo e the stallata shall co tom to the Nato aI Elect c Code a d federal state a d cty codes a d standards 2 8/25/93 REV NO DATE DWN D E APP DSNG ENG APP DIST APP CITY OFCOLLINS DWG 3PHASEt LIGHT AND POWERWEER DEPARTMENT TRANSFORMER PAD DESIGN _® 75 — 500 KVA 3 PHASE Figure 1A - Pad Design (75 - 500 KVA) 20 368 300 REV SYM MM 85 T 2 7777 T3 1] PRIMARY SEC DN DA2Y IFRONT T T 3 �-- 18 2A 23 IB FOUP p3 REBAR 3 �� 49 LENGTH AND 4IOTH �3 T Not s on Pad Materal — I m m m Co c et t be 3 000 ps m 2 Mo m m G gg Caere aze 1 1/2 has Space red me rs to pad and IN me y sw tch a cab et w 11 ge e ally be 9 X 12 F cto s o be cons dared locot a the pad ndude — l A cc s b 1 ty — The t onsfo me pad shall be access ble to I boom t pars equ pped for the stallat o a d ert o al or hea y tronsforme s 5 ch access b I ty shall of red e t s o on dlace t p one ty 2 Pro m ty of B Idngs Wolls Be ers onJ/o 0 e he Is — add t to the area s equ ad to stall t a d remo 01 tte m Im m cleoronc f o t of the transfs me pad shall be cob (81 feet a d the m an No c1 crane f m all ache sees hall be To (4) feet If the IN to a has o e he a lea to the edge of to t a sfe one pad h 11 be meas ed ho Sent Ily f am the o ter edg f the o erhang T onsfo me s th o gh 300 KVA may be net Iled a de the o erhang f the artcar Cleo a e between the pad a d the o erhang s at least 25 feet a d he locato s o cc s ble to I e boom tucks 3 Codes a It Stanch ds — I add on to to abo e the Stellar on shall onform to the Net o al Electr c Code a d ISds al of t d cty codes d are do d REV NO I DATE DWN I D E APP DSNG ENG APR DIST APP CITY OF FORT COLLINS DWG 3R ASEz LIGHT AND POWER DEPARTMENT TRANSFCPMER PAD DESIGN 500 — 1000 KVA z ni i A cT Figure 2A - Pad Design (500 -1000 KVA) 21 368 300 REV SYM MM 107 T-3 RR[MARr � 15 WINDOW SECONDARY 8 FROM 28 23 --- 28 r— 28 3 FIVE k5 REDAR 3 — 51 f3 bENCTH AND WIDTH 7 5/8 — _LE 3 —� T Notes o Pad Mate al — 1 Co a ate m t be 3 000 pan an 2 Me mum oars, egg seat, ste 1 1/2 ,he Space ea ante to to pad a d p ma y Swt h a a at w11 gen ally be 9 X 12 Fact to be co de ad to t , If p d cl de — I Access b I ty — The tronsro me pad shall be a ce s ble to I e boom t ucas sq aped he the nstalleten sad amo Al of hen y t a to me s S h access b I ty shoo t q s t so adlace t p be ty 2 Pro m ty of B Id ngs falls Barr e s a d/or 0 e hangs — add tan to the clearances eq red o stallata a d me al the on mmold ce f a t of the t o fe me p d hall be eont (8)felt o d the m m m clew a co f an all ,th sde shall be fo (4) f at If th b Id q In a 0 ethane also ante a the edge o the tro Sfo mer pad shall be m su ed no an tally f am h outs doe of the o e he g T east m s th o on 300 KVA may be n t Iled der the a s h 9 f the art I Ilea an betwee If pod and the o a he , at least 25 feet a d the Iocat s act old to I boom t kS 3 C des c d Ste do as — I add to t he abo th t Mato sh II o to m t the Not I Elect C de o d federal state and sty code a d stanch as 11/02/90 REV NO I DATE DWN D E APR DSNG ENG APP DIST APP CITY OF FORT COLLINS DWG 3P ASE3 LIGHT AND POWER DEPARTMENT TRANSFORMER PAD DESIGN v 1000 — 2500 KVA �rwr �e rown� 3 PHASE Figure 3A - Pad Design (1000-2500 KVA) 22 368 300 REV SYM MM APPENDIX B 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 TABLE 3B MANUFACTURER SERIAL NO Cooper Power Systems All ASEA Brown Bovan (ABB) Al Howard Industries All Pauwels Transformers 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 23 368 300 REV SYM MM APPENDIX C The following forms for Individual and Average Transformer Losses are used by the City of Fort Collins to determine loss penalties 1) Transformer Loss Evaluabon Average Losses Form 2) Individual Transformer Loss Evaluation Form 24 368 300 City Order No Manufacturer KVA/Unit TRANSFORMER LOSS EVALUATION - 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 MM 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 25 368 300 INDIVIDUAL TRANSFORMER LOSS EVALUATION City Order No Manufacturer KVA/Umt LINE DESCRIPTION (1) Tested core losses (2) Quoted core losses (3) Excess core losses S/N Invoice No 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) Date Prepared By Design Engineering AMOUNT REV SYM mm 26 368 300 Revised 12/13/96 Special Conditions and Supplemental Instructions to Bidders Applicable to Specification 368-300 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 percent (%) at full load, high voltage to low voltage at 85°C 2 No load and total losses at 85°C 3 Delivery in weeks 4 A statement indicating compliance with our Specification with exception or a detailed list of exceptions 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 provide the method and indices to be used in computing the amount thereof Escalation occurring after acceptance, if Purchaser exercises the option to delay shipment after manufacturing is completed will not be paid If the above information and compliance statement are not supplied the proposal will not be evaluated An alternate bid for the total order may be submitted in addition to the unit bids B Loss Evaluations Loss penalties and loss evaluations will be based on the following values 1 No-load or excitation losses at $3 90/watt 2 Load losses at $2 30/watt C Shipping Terns 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 2 Test reports shall accompany the invoice If test reports do no 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 Standards Engineering Section, Fort Collins Utilities - Light & Power 3 Loss penalty credits and escalation charges shall be itemized on the invoice THE CITY OF FORT COLLINS Light and Power Department P O Box 580 Fort Collins CO 80522 SPECIFICATION NO 368 300 TITLE PAD MOUNTED COMPARTMENTAL TYPE THREE PHASE DISTRIBUTION TRANSFORMERS WITH SEPARABLE INSULATED LOAD BREAK HIGH VOLTAGE CONNECTORS APPROVED BY 14�1�4 Kraig Bader Standards Engineering Division Manager ORIGINATION DATE 8/12/83 REVISED 2/2/2005 REV SYM MM ITEMS COVERED BY THIS SPECIFICATION DESCRIPTION STOCK NO SPECIFICATION NO SERIAL 75 KVA 208Y/120 RADIAL 368 300 006 75 KVA 408Y/277 RADIAL 368 300 007 75 KVA 208Y/120 LOOP 368 300 008 75 KVA 480Y/277 LOOP 368 300 009 150 KVA 208Y/120 LOOP 368 300 015 150 KVA 480Y/277 LOOP 368 300 016 300 KVA 208YI120 LOOP 368 300 030 300 KVA 480Y/277 LOOP 368 300 031 500 KVA 208Y/120 LOOP 368 300 050 500 KVA 480Y/277 LOOP 368 300 051 750 KVA 208Y/120 LOOP 368 300 075 750 KVA 480Y/277 LOOP 368 300 076 1000 KVA 208Y/120 LOOP 368 300 100 1000 KVA 480Y/277 LOOP 368 300 101 1500 KVA 480Y/277 LOOP 368 300 151 2000 KVA 480Y/277 LOOP 368 300 201 2500 KVA 480Y/277 LOOP 368 300 251 2 368 300 REV SYM MM REVISION DESCRIPTIONS REVISION DESCRIPTION Previous on file APPROVED REVISION FF Tim Sagan • Add Paragraph 5 2 2 9 3 pentahead locking bolts Susan Coram • Paragraph 3 2 2 13 1 add glossy requirement 10 1895 REVISION GG Susan Coram • Title page Remove revised date Tim Sagan • Paragraph 4 4 and Table 2A Change Temperature Tests and Noise Test from every 9 22 95 unit to one unit of design REVISION HH Opal Dick • GE removed from Appendix B Tim Sagan 12 1396 REVISION II • Add paragraph 3 2 2 10 OVERCURRENT PROTECTION and renumber remaining paragraphs in section 3 2 Opal Dick • Revise Fig 1 to reflect a V configuration for the primary bushing arrangement vs an Tim Sagan in line arrangement 6/3/99 • Revise Fig 17 to remove requirement for CT mounting studs and increase dimensions A from 5 and 5 5 to 6 on 225 2500 kVA sizes REVISION JJ Bill Bray • Reformat and converted to MS Word delete List of Active Pages Tim Sagen 9 / 00 REVISION KK KraaigigBaaderdder • Added drawing 1 a to describe cable accessory parking stand detail revise to reflect Tim Sagan current editions of national standards change impedance on 368 300 009 from 9 / 11 / 2001 1 7% to 1 9% REVISION LL Kraig Bader • Change fusing from oil immersed current sensing weak link cartndge to a current 4/2/2004 sensing bay-o net fuse link in senes with an ELSP current hmrhng backup fuse (clause 3 2 2 10) • Change column header for impedance table in 3 2 2 1 to clarify that impedance numbers are nominal values (Tolerances are consistent with ANSI C 57 12 00 2000) • Changed wording from Mr Ouch in 3 2 2 15 to warning label Revision MM Kraig Bader • Change clause 3 2 2 10 to specify current sensing bay o net fuse link by size and 2/2/2005 partnumber Table 2 was added for this purpose • Renamed table in 3 3 2 1 to from Table 2 to Table 3 • Renamed table in 4 3 from Table 2A to Table 4 3 368 300 REV SYM MM TABLE OF CONTENTS ITEMS COVERED BY THIS SPECIFICATION 2 REVISION DESCRIPTIONS 3 1 SCOPE 5 2 APPLICABLE DOCUMENTS 5 3 REQUIREMENTS 5 3 1 GENERAL REQUIREMENTS FOR DESIGN 5 3 2 SPECIFIC REQUIREMENTS FOR DESIGN OF LOOP FEED UNITS 7 3 3 SPECIFIC REQUIREMENTS FOR DESIGN OF RADIAL FEED UNITS 16 4 QUALITY ASSURANCE 16 4 1 GENERAL 16 4 2 TEST CONDITIONS 16 4 3 FUNCTIONAL TESTS 17 4 4 TEST METHODS FUNCTIONAL TESTS 17 5 PREPARATION FOR DELIVERY 17 6 DEFINITIONS AND ABBREVIATIONS 18 APPENDIX A 19 APPENDIX B 23 APPENDIX C 24 TRANSFORMER LOSS EVALUATION AVERAGELOSSES 25 INDIVIDUAL TRANSFORMER LOSS EVALUATION 26 4 368 300 SPECIFICATION FOR PAD MOUNTED COMPARTMENTAL TYPE, THREE PHASE DISTRIBUTION TRANSFORMERS WITH SEPARABLE INSULATED LOAD BREAK HIGH VOLTAGE CONNECTORS 1 SCOPE REV SYM MM This Specification establishes the minimum electrical requirements and mechanical features of three phase 60 HZ mineral oil immersed self cooled pad mounted compartmental type distribution transformers rated 2500 kVA and smaller high voltage 13 200 Grd Y/7620 volts with separable insulated load break high voltage connectors These transformers are used for step down purposes from an underground primary cable supply This standard generally conforms to ANSI requirements for pad mounted compartmental type self cooled three phase distribution transformers for use with separable insulated high voltage connectors C57 12 26 2 APPLICABLE DOCUMENTS The following documents form a part of this Specification to the extent specified herein The latest issue in effect on the date of invitation for bids shall form a part of this Specification unless otherwise noted • ANSI C67 12 00 Distribution power and regulating transformers and shunt reactors general requirements for • ANSI C67 12 26 Pad mounted compartmental type self cooled three phase distribution transformers for use with separable insulated high voltage connectors high voltage 34 500 Grd Y/19 920 volts and below 2500 kVA and smaller requirements for • ANSI C57 12 70 Terminal markings and connections for distribution and power transformers • ANSI C67 12 80 Terminology for power and distribution transformers • ANSI C67 12 90 Distribution power and regulating transformers and shunt reactors test code for • ANSI/IEEE 386 Separable insulated connectors for power distribution systems above 600V • NEMA STANDARD TR1 Transformers regulators and reactors 3 REQUIREMENTS 3 1 GENERAL REQUIREMENTS FOR DESIGN 3 1 1 BASIC DESIGN STANDARDS Transformers purchased under these Specifications shall be new and unless otherwise specified meet the requirements of the applicable ANSI Standards and the modifications and additions given in the subsequent paragraphs In case of conflict the requirements of the following documents shall apply in the priority shown a) This Specification b) ANSI C57 12 26 c) Other applicable ANSI and NEMA Standards 3 12 KILOVOLT AMPERE TEMPERATURE RATINGS Kilovolt ampere ratings are continuous and are based on not exceeding either a 65 C average winding temperature or an 80 C hot spot temperature rise The temperature rise of the insulating oil shall not exceed 65 C when measured near the top of the tank The temperature nse is based on an altitude of 3 300 feet 3 1 3 GENERAL CONSTRUCTION 3 1 3 1 The pad mounted compartmental type transformers shall consist of the transformer tank high voltage cable terminating compartment and the low voltage cable -terminating compartment All three of these components shall be assembled as an integral unit tamperproof and weatherproof for mounting on a pad There shall be no exposed screws bolts or other fastening devices which are externally removable except the main cover bolts may be exposed Where the main cover bolts are exposed the 5 368 300 REV SYM MM comer bolts shall be welded or otherwise rendered tamperproof There shall be no opening through which foreign objects such as sticks rods or wires might be inserted to contact live parts Suitable means for padlocking the compartment door(s) shall be provided 3 1 3 2 The high and low voltage compartment shall be located side by side on one side of the transformer tank When facing the compartment the low voltage compartment shall be on the right 3 1 3 3 Construction of the unit shall be such that it can be lilted skidded and slid into place on the mounting pad without disturbing the entrance cables 3 1 3 4 An undercoating over the regular finish or an equivalent treatment shall be applied to all surfaces that are in contact with the pad to minimize corrosion 3 1 3 5 Minimum dimensions shall be as shown in Fig 1 of this Specification Maximum transformer and minimum pad dimensions are shown in Fig 6 of this Specification 3 14 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 Table 18 and the following equation Units shall mean Transformers of the same size and design on one order Excess loss $ _ [No of units] [(No Load Lass 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 3 1 5 SERVICE CONDITIONS Service conditions shall be as defined in paragraph 4 1 of ANSI C57 12 00 except the ambient temperature range shall be 40 C above to 32 C below zero The transformer shall operate safely with starting temperatures as low as 32 C below zero 6 368 300 REV SYM MM 3 2 SPECIFIC REQUIREMENTS FOR DESIGN OF LOOP -FEED Units 3 2 1 FUNCTIONAL DESCRIPTION The transformer shall be a three phase pad mounted loop feed safe break deadfront type for use on a 13 8 kV grounded Y distribution system 3 2 2 DESIGN AND CONSTRUCTION 3 2 2 1 RATINGS Table 1 Loon Feed Transformer Ratinas Stock No WA Low Voltage - - - - ---------------- Nominal Impedance ------- - BushingT e/Confi High Voltage Low Voltage 368-300- 008 75 208Y/120 1 9% D D® 368-300- 009 75 480Y/277 1 7% O D® 368-300- 015 150 208Y/120 2 1% ,O D® 368-300- 016 150 480Y/277 2 1 % i0 OO 368-300- 030 1 300 208Y/120 2 5% ,O D® 368-300- 031 300 480Y/277 2 5% iD D® 368-300- 050 500 208Y/120 3 04% D VD 368-300- 051 500 480Y/277 3 04% D D® 368-300- 075 750 208Y/120 5 75% O D 368-300 076 750 480Y/277 5 75%O D 368-300- 100 1000 208Y/120 5 75% D D 368-300- 101 1000 480Y/277 5 75% ,D D 368-300- 151 1500 480Y/277 5 75% iD D 368-300- 201 2000 480Y/277 5 75% D D 368-300- 251 2500 480Y/277 5 75% D D OFigure 1 (V config ) of this specification D Low voltage line and neutral terminals shall be stud type bushings in accordance with ANSI C57 12 26 1992 Fig 9(d) and shall include a separate spade with NEMA standard drilling ®Figure 9(a) of ANSI C57 12 26 1992 (4 hole pad) DFigure 9(b) of ANSI C57 12 26 1992 (6 hole pad) 3 2 2 2 INSULATION LEVEL 3 2 2 2 1 The basic impulse level (BIL) of the completely assembled transformer including high voltage and low voltage terminals shall be 95 kV and 30 kV respectively 3 2 2 2 2 Dielectric test levels shall be in accordance with the distribution levels in Paragraph 5 10 of ANSI C75 12 00 2000 3 2 2 2 3 The unit shall withstand test voltages in accordance with ANSI C57 12 00 and impulse tests in accordance with NEMA Standards for Transformers Publications No TR1 3 2 2 3 TRANSFORMER CORE A five legged core -coil assembly or three separate core -coil assemblies shall be employed The use of three legged designs is expressly prohibited 7 368 300