HomeMy WebLinkAbout102795 WESCO DISTRIBUTION INC - PURCHASE ORDER - 6604954N
�4 a
City of Fort Collins
Page Number: 1
City of Fort Collins
Date: 08/04/06
Purchase Order Number: 6604954
vcnvcly UOLU. VJ/1Ulu / Buyer: DICK,OPAL
Purchase Order number must appear on invoices, packing lists, labels, bills of lading, and all correspondence.
Note:
Line City UOM Description Unit Price Extended Price
1 10 EA T3000050; transformer 15,920.000 159,200.00
500 kVA pad; 208Y/120
T3000050
YARD
TRANSFORMER, 500 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: 208Y/120.
SERIAL NUMBER 050 TO BE IN ACCORDANCE
WITH SPECIFICATION #368-300-050, REVISION MM
MFR. ABB
ESCALATION IS APPLICABLE
ADJUSTMENTS WILL BE
REVIEWED BYCITY PRIOR
TO PRODUCTION AND IN
Opal Dick- 368dash300.pdf Page 7]
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
13.9 W grounded "Y" distribution system.
3.2.2 DESIGN AND CONSTRUCTION
3.2.2.1 RATINGS
Table t - L000-Feed Transformer Retinas
Stock No. WA Low Nominal
Voltage Impedance
Bushing T e/Confi .
High Voltage
Low Volta e
368-300- 008
75
208Y/120
1.9%
c
of
368-300- 009
75
480Y/277
1.7%
c
of
368-300- 015
150
208Y/120
2.1%
c
of
368-300- 016
150
480Y/277
2.1%
c
of
368-300- 030
300
208Y/120
2.5%
c
of
368-300- 031
300
480Y/277
2.5%
c
of
368-300- 060
500
208Y/120
3.04%
c
e
368-300- 051
500
480Y/277
3.04%
c
of
368-300- 075
750
208Y/120
5.75%
c
368-300- 076
750
480Y/277
6.75%
c
368-300- 100
1000
208Y/120
5.75%
c
368-300- 101
1000
480Y/277
5.75%
c
368-300- 151
1500
480Y/277
5.75%
c
368-300- 201
2000
480Y/277
5.75%
c
368-300- 261
2500
480W277
5.75%
c
CFigure 1 (V-config.) of this specification
e 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
f Figure 9(a) of ANSI C57.12.26 - 1992 (4-hole pad)
g Figure 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 ac cordance with ANSI C57.12.00 and impulse tests in
accordance with NEMA Standards for Transformers, Publications No. TRII,
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
36a-300
„Opal Dick - 368dash300.pdf Page 8
3.2.2.4 HIGH VOLTAGE TAPS
REV. SYM: MM
A no-load tap changer with external operating handle shall provide two 2 V. full capacity taps above and
below normal. The operating handle shall be mounted in the primary compartment.
3.2.2.5 BUSHING WENS 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. Al 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 bushi rig wells shall be 200A load -break interfac a 8.N14.4 kV bushings in accordance
with ANSIAEEE 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 insu laced bushing. A ground 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 neutra I bushing and the ground pad.
3.2.2.5.5 The high -voltage neutral shall be corrected 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
constricted 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 to and the following details:
3.2.2.7.1 Suitable jack bosses or equivalent jacking facilities shall be provided on the tank. Vertical
clearance for a jack shall be 1 % inches minimun, 3% 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 mooting 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
shorn 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
mooted on a removable part, the manufacturer's name and transformer serial number shall be
permanently affixed to a norwemovable part.
Instruction nameplate shall certain the infornat ion 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
Opal Dick368dash300.pdf Page 9J
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:
I/V NPT or larger male Inlet Port.
Exposed parts of weather and corrosion resistant materials.
Norrdeterioratin g gasket and o-ring 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 SCFM at 15 psig.
3.2.2.8 OILPRESERVATION
Transfomlers 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.
3.2.2.9 TANKS
The tank shall be domed or sloped to shed water and shall be of sufficient strength to support a minimum
of 500 lbs. Constriction 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
Overcrrrenl 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:
Tnhi. 7 — Fuernn Renubnmonfe
Expulsion Fuse Continuous
Current Limiting Fuse
Stock
kVA
Current Rating
Continuous Current Rating
Number
Ca acl
Part Number*)
Part Number*)
36&30&008
7&VA
10A
30A
36&300-009
4000353C06
3544030M61M
11501cVA
I
I
36&30&016
(4000353C08)
(544040M61M1
1300 VA
I
36&300.031
(4000353C16)
I (3544065M IA
368-300-051
500kVA
40A
100A
4000353C 12
354410OWlFA
368-300-075
750kVA
65A
125A,
368-300-076
750kVA
(4000353C 14)
(3544125M71M)
368&300.100
1000kVA
368-300.101
1000kVA
i
I
2: Pwedlel 125A fuses
368-300-201
2MVA
(1=353C 17n
I (3544125Mr1Mi
36&300.251
1250MVA
1125A Hi-ArM OL Lirdc C05CB 1
1250A4 wallel1ses 1254 fu
2
Fuse shall be as specified in the table above or shall be an equivalent as approved in
writing by Electric Standards Engineering.
9
368-300
Opal Dick - 368dash300.pdf Page 10
REV. SYM: MM
3.2.2.11 COMPONENTS FORLOOPED 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 arty 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 C57.12.26-1992.
10
368300
Opal Dick —3368dash300.pdf Page 11
aB
2.0
F VJJGE31d' MIN
1 1/2. Kw
KLOWQ.
* +—+
ha
I'
--
I I i I I i l
d.6 0 55
MIN• 45
A
KVARATINGS
LOWVOLTAGE
RATINGS
COMPARTMENT
DIMENSIONS
(MINIMUM)
BUSHING
HEIGHT
A'
B
751W
ALL
23.25
27
2 54
ALL
2B
31
750�10W
d Y/2n,21MY 11M
28
46
15fN}2
ANY1227
2B
46
NOTE:
Demles vnMe Aimwabu.
^ See Fg.5
AN dmemims in (rcMsl.
Mamum dmensp s W Asrx one imh clw am:e from edge of ped (Fg. 6),
WLN
MIN•
Figure -Accessory compartment & Bushing Dimensions (Config. 1)
REV. SYM: MM
11
3W300
Opal Dick - 368dash300.pdf Page 121
I---2AS MIN -
TANK SURF CE.
TANK SURFACE
y I � A
� 1 I
� i I
I
OJ5
+ 11a
_p
INSIDE
Cable Aao y NrKJ,%Stami
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
36s-300
Opal Dick - 368dash300.pdf Page 13
REV. SYM: MM
4.0"il A A A 4.0" 6" RADIUS
MIN MIN TYPICAL 3
PLACES
\
1
/ `L
X1 —'' x3
i
KVA RATINGS
LOW VOLTAGE
RATINGS
A
B
75-150
ALL
4.75
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
36&300
Opal Dick - 368dash300.pdf Page 14
REV. SYM: MM
KVA
SERIAL
I PAD DIMENSIONS (inches)
A
B
C
I D
E
F
75
-006 thru -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
51
23
15
79
Fig.6 - Pad Dimensions
14
368-300
Opal Dick - 368dash300.pdf Page 15]
REV. SYM: MM
TABLE I
ACCESSORY EQUIPMENT
ACCESSORY I KVA
75- 550 f 300 500-2500
Tap charger 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
x
1"oil drain valve with sampling device
x
x
Upper filter press and filling plug (or cap) (f)
x
x
x
Provisions for oil gauge
x
Provisions for pressure -vacuum gauge
x
x
Oilgauge
x
Thermometer
x
x
x
Secondary CT mounting holes
(4 holes on 4 3n8" x 5 518" centers)
X
x
x
Manual/automat is pressure relief valve
x
x
X
15
368-3W
Opal Dick - 368dash300.pdf Page_ 6 1
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 W grounded "Y" distribution 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 -Feed Transformer Ratings
Stock No. WA Low Impedance
Voltage I
I Bushing TypelConffg.
High Voltage Low Voltage
368-300- 006
�
208Y/120
1 9%
d f h
368-300- 007
I 75
1480Y/277
I 1.9%
I d I f h I
d Per Figures 54, & 7 of ANSI C57.12.26-1992 (In -Line) EXCEPTION: high voltage bushings shall be 32 -36 inches
above the base of the transformer
f Figures 9(a) & 9(d) of ANSI C57.12.26 - 1992 (stud with 4-hole pad)
h 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
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 all tests prior to payment.
Copies shall be sent to the Design Section as well as with the invoice. Unsigned copies are rat 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 Sectio n 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 specked in ANSI C57.12.00.
16
368-300
Date: 08/04/06
°!
City of Fort Collins
Page Number: 2
City of Fort Collins
Purchase Order Number: 6604954
"r Val I VlV f 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
ACCORDANCEWITH STATED
INDICES IN PRICING.
ANY INDEX ESCALATION
(INCREASE) AFTER THE
QUOTED DELIEVERY DATE
WILL NOT BE ALLOWED.
NO LOAD LOSS - 906
FULL LOAD LOSS - 2562
TOTAL LOAD LOSS - 3468
IMPEDANCE 3.04%
DELIVERY: 32 WEEKS OR
CITY OF FORT COLLINS MAY
CONSIDER THE CAPACTIY
PLAN ARRANGEMENT AS
PROVIDED IN THE QUOTATION
FOR THESE UNITS WITH
SPECIFIC SHIPMENTS AND
QUANTITIES TO BE
STATED WITHIN THE NEXT
Opal Dick-. 368dash300.pdf Page 17]
REV. SYM: MM
4.2.3 TOLERANCE ON IMPEDANCE VOLTAGE ON A TAP
The percent departure of tested impedance voltage on army tap from tested impedance voltage at rated
voltage shall rat be greater than the total tap voltage range expressed as a percentage of the rated voltage.
4.3 FUNCTIONALTESTS
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.
Y.W. A _ C......�i.....1 T... i..
TEST
TEST PARAGRAPH
REQUIREMENT OR REFERENCE
Examination Of Product
4.6
3.0 3.1 3.2 3.3 s specification)
Ratio
4.6
ANSI C57.12.00 Section 8
Polarity And Phase Relation
4.6
ANSI C57.12.00 Section 8
Excitation Loss
4.6
ANSI C57.12.00 Section 8
Excitation Current
4.6
ANSI C57.12.00 Section 8
Impedance & Load Loss
4.6
ANSI C57.12.00 Section 8
Temperature Tests'
4.6
ANSI C57.12.00 Section 8
Dielectric Tests
4.6.1
3.2.2.2 hisspecification)
Impulse Tests
4.6.2
3.2.2.2 hisspecification)
Leak Testina
4.6.3
3.2.2.8 & 3.2.2.9 's specification)
Noise Testi a
4.6.4
3.2.2.12 hiss ification
v, M U1 Yl r= uoiyi l W UI=.
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.
4.4.2IMPULSE 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 % 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 handli rig and to protect units from shipping damage. Urns shall be
fully palletized in four-way universal pallets with2V' minimum openings to facilitatehandling from army 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 ary additional
requirements or modifications shown on the purchase order arxUor supplemental instructions.
17
368-300
Opal Dick - 368dash300.pdf Page 18
REV. SYM: MM
6. DEFINITIONS AND ABBREVIATIONS
• Vendor or Supplier- The manufacturer andlor manufacturers agent supplying or quoting 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)
• °F -Degree Fahrenheit
• kV -1000 volts.
• CPS or Hz -Cycles per second.
• psig - Pounds per square inch gauge.
• V or v- Volts.
• kVA -1000 Volt-amperes.
18
368-300
REV. SYM: MM
APPENDIX A
Typical pad designs are shown in Figures 1A through 34
The dimensions in inches of Figures 1A through M will fit the minimum compartments on transformers covered by tfds
Specification as well as the maximum transformer envelope.
19
368300
Opal Dick- 368dash300.pdf Page 20
REV. SVM: MM
I I
I I
IS" I PR]YkRY SEC.
I I
3'
i?6' 27• 13" ]9' Pun aS
LENLfN dNg
WIDIM
411 WI
7 5/9' _ _ _ _ _� _ s
t3'
T 17
on Pod Wstd —
1. Cancrefi meal be 3.000 our mitinurn.
Mgimum
coons oaweaote die 1 1/2 ndree.
Some howiements far pod and prinyy I M:hng caUfnet *I generally
be V 1t U'. Factors to be cm4dered rm fIng the pod include —
1. Acassbllty — TM tionsloYmer past 1rIo1 ms acCssglole to
line bccml truclu equrpped For the installation and ro novel or
heoW transformers. Sudt awasobllity aholl not require
inlrualen en oapoent proputy.
2 Prodnity of Buildings. '*bill. Barris, and/w tlwhmge —
In ndortlwr to the Cl"MCw rpWV,,d Id nelallbllm one
Rmoral. the rnnrnerrt clewwlCp n frank of the transformer pod
shol he eight (8) feet and the mnir um clearance tram as
oths slew ahol be three (J) feet It the buedn0 has on
ovamong. daeramce to aM sago of fee VTslormer pod small
IN, meoeums harinntolly from the outs edge of the o hulq.
Tronslwrnss through JDO KVA may be tnstolled ends the
"Mang It tee vartrdal deormcb setAeen me pod ano tee
"hunts is at least 25 feet w+d the Iwatlpn he wcoo ible to
line boom trucks
J. Cbdw and 3tw+dorde — fn odd.t'cn to the above. the
installation shell cmform to the Notknal Elmtrk Code and
feaero4 slots ono any coon and %toWp gas.
2
S 25 93
REV NO.
DATE
DWN
D.E. APP
I DSNG. ENG APP
DIST APP
CITY OF FORT COLLINS
DWG 3PHASEI
®
LIGHT AND POWER DEPADEPARTMENTTRA
SFOR ER PAD DE51GN
sgeee e.l. oww
75 — 500 KVA
mma we pm
3 PHASE
Figure 1A- Pad Design (75 -500 KVA)
20
36&300
Opal Dick - 368dash300.pdf Page 2
REV. SYM: MM
--I--�--
I I
i
I I
I I 72'
--i--�-- +.
3
1]'
I PRINAFtY sl:taNn6aV
FRd1i T3.
T
T �-- fir 26, ar
(OJR o3 Kw
7' 49' 3. ddd:ru e(a Vtmu
—e—
Nate% aw
paw Material -
I.
C-Wgtq must be 3.000 M rnmmum,
2.
wlmYm aotree IlWoote alye 1112 rrClts
Bpen Ieymremenle flat pan nb prilwary ofichrng cabwet Milt generally
be B' K 12'. Facing to be conaideraa in Inootrig the pan Inol(oe —
i
AccrMatly — me tronafarmrr pod "all be ottem , to
ILmIe bootrade ebuipoed for the tnotoictllan o+d rerrmrd of
hoary traretermns. such aedoememy Mao not "Pro
wtrlson m odp009111 prdpnty.
2.
fArassInIty Of Buddngqa. *a11a Borreov. oho/or ■ —
ti addiiton to the alaaaneee rowfTod for Tool ollobLn�and
rM1a Ytl, Iha mwMYM tlearanf4 In flent of me trOMfalmn pad
"I ee uga ni (9) feet tnthe mfmmum devmd awe all
VOW sides shot be fwr (4) feet, If the b AOhg hot on
owhpndy ataranta to the edge at the irmrarmer pad oral
be meiap,old ho,dignially torn the ester edge of the ",hong.
Gareformne tlrou4, 300 KyA nwy be Installed andw the
owhong a me yerlIow wewonoe bet*oon the pod mo the
overhand to at loos( 25 lest and the Imotion is occeecLa to
IYIe bean buaR
31
Centel, tend the
coytCode and
rlslalp lerl "Idalanrnrrl to the Notlpnol
federal. state and city codes acid stamdords
D
OZ APP
D5NG, E G APP
DIST, APP
CITY OF FORT COLLINS
DWG 3PMASE2
nA==
LIGHT AND ER DEPARTMENT
IP
TRA SFOR ER P D DESK500
- 1000 KVA
3 PHASE
Figure 2A - Pad Design (500 -1000 KVA)
21
368300
Opal Dick - 366dash300.pdf Page 22
REV. SYM: MM
107'—F
I
��
mtENaln
15' I WINDOW SECMDAIW
e•gal t♦
_T
L
29' 2328' 2B'
FEVE 90 N
LCNG11d ANDD Vg'ID7N
- I I
7 5/2
---- -
T--
hotel w rbd Itfewo -
1, onCrete must be S,OOD pad m�nrnym,
2, OMfuffl C40(M Og1 00% ems 1 1/2 inches,
space towlamentg for Poo 0.0 pnmary obtcnhg cannot *I gorway
br V X 12'. Feltare to be conalderad in locating the Dad indtda -
I. A&COMlddy - me uanNdmd pod Mail be OCCetlble to
Ina boom tNchs eetuboad for the installation and rernowl Df
heavy tranefar Sits, accesmality Snell nOt raQ.IYo
intrvetar gn odiwant vrowlty.
2. ProodmCty of BYOdnP, *died Barriers, wd/a Orerhong, -
In adc6an to the doararono reouimd for inatdloGon and
remowt, the mfndmt. n clearance in fl nt at am trcn former Poo
aholl be eight (a) feet and the rmnrnum deerance Ircw oil
other aide shall be low (4) feet If the huiWhg has on
e.dP", tleerehee to the eerp of me Ireeafermd pod nee
be measured harir taly ban the oetar edge al " tavahong.
rrenefw.wg tnrougn =0 KVh may be L01011001 under the
ovdhdng d the V.deol deww" wow the pad and the
overman 4 at least 25 feel and the location is ocoaee'hie to
Im boom iryehv.
1. Codes and Standards - h addition to the 000te, the
matOewiw shall adfd to the Natieed Etltltre Cade and
federal. Dlote and ally codes and etwdords.
11/p2/g0
REV NO.
DATE
D N
D.E. APP
I DSNG. ENG APP
DIST. APP
CITY OF FORT COLLINS
DWG 3PHASE3
®
LIGHT AND POWER DEPARSPARTMENT
I1300 - 2500 KVA
aa- .ave.e
a"e �e ele�l
3 PHASE
Figure 3A - Pad Design (1000-2500 KVA)
22
368-300
Opal Dick- 368dash300.pdf Page 23
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, manufacturers equipment must
also satisfy all requirements of this Specification to be acceptable.
TABLE 3B
MANUFACTURER SERIAL NO.
Cooper Power Systems
All
ASEA Brown -Govan (ABB)
All
Howard Industries
All
Pauwels Transformers
All
The manufacturers in the following list have been conditionallyapproved 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
36&300
Opal Dick - 368dash300.pdf Page 24]
REV. SYM: MM
APPENDIX C
The following forms for Individual arid Average Transformer Losses are used by the City of Fort Collins to determine loss
penalties.
1) Transformer Loss Evaluation Average Losses Form
2) Individual Transformer Loss Evaluation Form
24
368-300
Opal Dick - 368dash300.pdf Page 25J
REV. SYM: MM
TRANSFORMER LOSS EVALUATION - AVERAGE LOSSES
City Order No. SrN
Manufacturer Invoice No.
KVNUne
LINE DESCRIPTION AMOUNT
(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
NOTE: If arty 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
Opal Dick - 368dash300.pdf Page 26�
INDIVIDUAL TRANSFORMER LOSS EVALUATION
City Order No.
Marwfacturer
KVWUnit
LINE
DESCRIPTION
(1) _
Tested core losses
(2)
Quoted care losses
(3)
Excess core losses
line (1) less line (2) but rat less
than zero
(4)
Percent difference
line (3)-line (2) x 100
(5)
Tested total losses
(6)
Quoted total losses
(7)
Excess total losses
Une (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
Une (9) less line (10) but not less
than zero.
(12)
Penalty for excess core losses
Une (3) x $
(13)
Penalty for excess copper losses
Une (11) x $
(14)
Penalty to be assessed manufacturer
Line (12) plus line (13)
SIN
Invoice No.
Date Prepared By:
Design Engineering
AMOUNT
REV. SYM: MM
26
368-300
Date: 08/04/06
ul�
City of Fort Collins
Page Number: 3
City of Fort Collins
Purchase Order Number: 6604954
Delivery Date: 03/16/07 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
7 CALENDAR DAYS BY
WESCO
Total
$159,200.00
City of Fort Cidilifis Director of Purchasing and Risk Management City of Fort Collins
This order is valid over $2000 unless signed by James B. O'Neill II, CPPO, FNIGP Accounting Department
City of Fort Collins Purchasing, PO Box 580, Fort Collins, CO 80522-0580 PO Box 580
Fort Collins, CO 80522-0580
Opal Dick- 368dash300instructions.pdf Page 1]
Revised 12/13196
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.
Opal Dick - 368dash300.pdf Page 1�
THE CITY OF FORT COLLINS
Light and Power Department
P.O. Box 580
Fort Collins, CO 80522
SPECIFICATION NO: 368a00
TITLE: PAD -MOUNTED COMPARTMENTAL-TY PE THREE-PHASE
DISTRIBUTION TRANSFORMERS
WITH SEPARABLE
INSULATED LOAD BREAK HIGH -VOLTAGE CONNECTORS
i
APPROVED BY:
Kraig Bader
Standards Engineering Division Manager
ORIGINATION DATE: 8112183
REVISED: 212/2005
Opal Dick- 368dash300.pdf Page 2
REV. SYM: MM
ITEMS COVERED BY THIS SPECIFICATION
DESCRIPTION
STOCK
NO.
SPECIFICATION NO.
SERIAL
75
KVA,
20BY1120 RADIAL
368-300
-006
75
K\/A
40BY/277 RADIAL
368-300
-007
75
MA
20BY1120 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
KV&
20BY/120 LOOP
368-300
-030
300
MA
480Y/277 LOOP
368-300
-031
500
KVA
208Y/120 LOOP
366-300
-050
500
KVA
480Y/277 LOOP
368300
-051
750
KVA
20BY/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
K\/&
480Y/277 LOOP
368300
-251
2
368-300
Opal Dick - 368dash300.pdf Page 3
REV. SYM: MM
REVISION DESCRIPTIONS
REVISION DESCRIPTION Previous onfile
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.
10-18-95
REVISION GG:
Susan Coram
• Title page: Remove revised date
I Tim Sagen
• 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
12-13-96
REVISION II :
• Add paragraph 3.2.2.10 OVFRCURRENT 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 Sagen
in -line arrangement.
6r3r99
Revise Fig. 17 to remove requirement for CT mounting studs and increase dimensions
A from 5" and 5.5' to 6" on 22 2500 kVA sizes
REVISION JJ
all Bray
Reformat and converted to MS Word, delete List of Active Pages
Tim Sagen
9 /14 / 2000
REVISION KK
Kraig Bader
Added drawing 1a to describe cable accessory parking stand detail, revise to reflect
Tim Sagan
current editions of national standard s, change impedance on 368-300-009 from
9 / 11 / 2001
1.7% to 1.9%.
REVISION LL
Kraig Bader
• Change fusing from oil -immersed curets sensing weak link cartridge to a current
4/2/2004
sensing bay-o-nef fuse link in series with an ELSP current limiting backup
fuse (clause 3.2.2.10).
• Charge column header for impedance table in 3.2.2.1 to clarify that impedance
numbers are nominal values. (Tolerance s are consistent with ANSI C.57.12.00-
2000)
• Changed wording from "Mr. Ouch" in 3.2.2.15 to "roaming label"
Revision MM
Kraig Bader
• Charge clause 3.2.2.10 to specify current sensing bay-o-net fuse link by size and
2/212005
part number. 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
Opal Dick - 368dash300.pdf Page 4
REV. SYM: MM
TABLE OFCONTENTS
ITEMS COVERED BYTH IS SPECIFICATION___ ._.....___. .._.._...»» .._.._..... _ ..___._.....
....... _... _............... ............ 2
REVISIONDESCRIPTIONS .» ...... _...... ....... .._........ _. ............ _.._.�._. _....._.._. ....» »__....--_....._.
._..___..... ..___....3
1. SCOPE_-_... ............ .... _..... _ ...... ............. ......_...... »._._.._.. »..... ___...._»....___ ...___.......
_._.._.._... .»......._.... ..5
2. APPLICABLE DOCUMENTS..._ ._»..» __. ._»..» _... .�._.._.» ..._........ .__........ .._..»..__ ..»»._.._.. ..._._.._... _.___....... ....5
3. REQUIREMENTS --------- -------- ...._..»..- •---....»-. _....... »... ..... _....... ....... _.... _...........
............. ......... ..... ............
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 ................ ................ ................ ................ ................ ................ ................................................
................ ................ ..... I 6
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
APPENDIXA. ..... _.... ........ _... _..».___.. .»......... ._--------- .........._. .»._........ .»......___.._._..»......
...... ._--------- ...... ... 19
APPENDIXB............ .___..... .... ..... ._».... ._.....___ ......... ..... _...... ...... .............. ...._.._.._. ._........ _......»..»_ .......23
APPENDIXC.»..... »..... ___..»._.. _._.._.».. _�.._..». ._.._._.._.. »__......__ ............. .»....._._.._...»»......
__.._..».». ..._..__... ........
TRANSFORMER LOSS EVALUATION -AVERAGE LOSSES .......................... ................ ................
................ ................ .......25
INDIVIDUAL TRANSFORMER LOSS EVALUATION ...................... ................ ................ ................
................ ................ ........26
4
36B-300
Opal Dick - 368dash300.pdf Page 5
REV. SYM: MM
SPECIFICATION FOR
PAD -MOUNTED COMPARTMEN TAL-TY PE, THREE-PHASE
DISTRIBUTION TRANSFORMERS WITH
SEPARABLE INSULATED LOAD BREAK HIGH -VOLTAGE CONNECTORS
1. SCOPE
This Specification establishes the minimum electrical requirements and mechanical features of three phase, 60 HZ,
mineral oil immersed, self -coded, pad -mounted, compartmen tal-type distribution transformers rated 2500 WA and
smaller, high voltage 13,200 Grd Y/7620 volts, with separab le insulated load break high voltage connectors. These
transformers are used for step down purposes from an underground primary cable supply.
This standard generally confoms to ANSI requirements for pad -mounted compartm ental-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 C57.12.00 - Distribution, power, and regulating transformer s, and shunt reactors, general requirements for
• ANSI C57.12.26 - Pad mounted, compartmental-ty, pe, 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 WA and smaller, requirements for
• ANSI C57.12.70 - Terminal markings and connections for distribution and power transformers
• ANSI C57.12.80 -Terminology for power and distribution transformers
• ANSI C57.12.90 - 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.
3.1.2 KILOVOLT -AMPERE TEMPERATURE RATINGS
Nlovolt-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 rise is based on an altitude of 3,300 feet.
3.1.3 GENERAL CONSTRUCTION
3.1.3.1 The pad -mounted compartmental-t ype transformers shall consist of the transformer tank, high -voltage
cable terminating compartment, and the low -voltage cable-terminatin g compartment. Al 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 bolls may be exposed. VNmere the main cover bolts are exposed, the
5
368-300
Opal Dick - 368dash300.pdf Page 6�
REV. SYM: MM
comer bolts shall be welded or otherwise render ed tamperproof. There shall be no opening through
which foreign objects such as sticks, rods, or wire s 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 lifted, 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 shave in Fig. 1 of this Specification. Maximum transformer and
minimum pad dimensions are shown in Fig.6 of this Specification.
3.1.4 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 PR 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 lass $ = [No. of units] [(No Load Loss Evaluat ion $) (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 ary unit or units exceed the tolerances of paragraph 9.3, ANSI C57.12.00-2000, that unit or units shall riot
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 toss 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 320C below zero. The transformer shall operate safety with starting
temperatures as low as 32°C below zero.
6
368-300