B - Transformers

Revision 10
May 6, 2016

Compatible Unit kVA Description Quantity Material ID
BA10B 1 12470 Grounded Y/7200-120V (T) — See Note 1 1 1002570
BA21C 1.5 7200/12470y - 120/240V (X)
Fuse, T-Link 1A
Wire, #4 Cu WP SD Sol
1
1
15'
630253
346016
847288

Notes:

1. Do not use Compatible Unit BA10B as a line transformer! They are not assigned District transformer numbers and cannot be placed in GIS. Compatible Unit BA10B 1kVA transformer is intended to be used in conjunction with line apparatus like reclosers or switches to supply 120V control power. It is equipped with a high side internal weak link and does not require a cutout or other external fuse protection.
2. Call for 1.5kVA transformer, Compatible Unit BA21C, when serving small loads like street lights.

Single Phase Overhead Transformers (15kVA - 500kVA)

Compatible Unit kVA Description Quantity Material ID
BA20L 15 7200/12470y - 120V (Cutover)
Fuse, T-Link 6A
Wire, 1/0 WP Cu 19-Str SD
1
1
10'
630394
346066
847139
BA21L 15 7200/12470y - 120/240V
Fuse, T-Link 6A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630427
346066
847139
BA24L 15 7200/12470y - 240/480V
Fuse, T-Link 6A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630419
346066
847139
BA20N 25 7200/12470y - 120V (Cutover)
Fuse, T-Link 8A
Wire, 1/0 WP Cu 19-Str SD
1
1
10'
630493
346082
847139
BA21N 25 7200/12470y - 120/240V
Fuse, T-Link 8A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630534
346082
847139
BA24N 25 7200/12470y - 240/480V
Fuse, T-Link 8A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630518
346082
847139
BA25N 25 7200/12470y - 277V
Fuse, T-Link 8A
Wire, 1/0 WP Cu 19-Str SD
1
1
10'
630526
346082
847139
BA20P 37.5 7200/12470y - 120V (Cutover)
Fuse, T-Link 10A
Wire, 4/0 WP Cu 19-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
10'
1
630592
346107
847080
1000051
BA21P 37.5 7200/12470y - 120/240V
Fuse, T-Link 10A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630617
346107
847139
BA24P 37.5 7200/12470y - 240/480V
Fuse, T-Link 10A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630625
346107
847139
BA25P 37.5 7200/12470y - 277V
Fuse, T-Link 10A
Wire, 1/0 WP Cu 19-Str SD
1
1
10'
630633
346107
847139
BA20R 50 7200/12470y - 120V (Cutover)
Fuse, T-Link 15A
Wire, 350 kcmil WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
15'
1
630691
346157
847064
1000051
BA21R 50 7200/12470y - 120/240V
Fuse, T-Link 15A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630708
346157
847139
BA24R 50 7200/12470y - 240/480V
Fuse, T-Link 15A
Wire, 1/0 WP Cu 19-Str SD
1
1
10'
630716
346157
847139
BA25R 50 7200/12470y - 277V
Fuse, T-Link 15A
Wire, 1/0 WP Cu 19-Str SD
1
1
10'
630724
346157
847139
BA20S 75 7200/12470y - 120V (Cutover)
Fuse, T-Link 20A
Wire, 4/0 WP Cu 19-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
20'
1
630790
346206
847080
1000051
BA21S 75 7200/12470y - 120/240V
Fuse, T-Link 20A
Wire, 4/0 WP Cu 19-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
15'
1
630807
346206
847080
1000051
BA24S 75 7200/12470y - 240/480V
Fuse, T-Link 20A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630815
346206
847139
BA25S 75 7200/12470y - 277V
Fuse, T-Link 20A
Wire, 4/0 WP Cu 19-Str SD
1
1
10'
630823
346206
847080
BA20T 100 7200/12470y - 120V (Cutover)
Fuse, T-Link 30A
Wire, 350 kcmil WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
20'
1
630899
346305
847064
1000051
BA21T 100 7200/12470y - 120/240V
Fuse, T-Link 30A
Wire, 350 kcmil WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
15'
1
630906
346206
847064
1000051
BA24T 100 7200/12470y - 240/480V
Fuse, T-Link 30A
Wire, 1/0 WP Cu 19-Str SD
1
1
15'
630914
346305
847139
BA25T 100 7200/12470y - 277V
Fuse, T-Link 30A
Wire, 350 kcmil WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
15'
1
630922
346305
847064
1000051
BA21TS 167 7200/12470y - 120/240V
Fuse, T-Link 40A
Wire, 350 WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
36'
1
631201
346404
847064
1000051
BA24TS 167 7200/12470y - 240/480V
Fuse, T-Link 40A
Wire, 350 WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
18'
1
631219
346404
847064
1000051
BA25TS 167 7200/12470y - 277V
Fuse, T-Link 40A
Wire, 4/0 WP Cu 19-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
24'
1
631227
346404
847080
1000051
BA21W 250 7200/12470y - 120/240V
Fuse, T-Link 65A
Wire, 500 kcmil WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
36'
1
631508
346553
847030
1000051
BA24W 250 7200/12470y - 240/480V
Fuse, T-Link 65A
Wire, 4/0 WP Cu 19-Str SD
1
1
36'
631516
346553
847080
BA25W 250 7200/12470y - 277V
Fuse, T-Link 65A
Wire, 500 kcmil WP Cu 37-Str SD
Bracket, Xfmr Sec Lead Wire Support
1
1
24'
1
631524
346553
847030
1000051
BA21Y 333 7200/12470y - 120/240V
Fuse, T-Link 80A
1
1
631706
346602
BA24Y 333 7200/12470y - 240/480V
Fuse, T-Link 80A
1
1
631714
346602
BA25Y 333 7200/12470y - 277V
Fuse, T-Link 80A
1
1
631722
346602
BA21ZB 500 7200/12470y - 120/240V
Fuse, T-Link 100A
1
1
632001
346652
BA24ZB 500 7200/12470y - 240/480V
Fuse, T-Link 100A
1
1
632019
346652
BA25ZB 500 7200/12470y - 277V
Fuse, T-Link 100A
1
1
632027
346652

Note: All overhead transformers listed are double bushing type.

Single Phase Pad Mounted Transformers - Loop Feed Type (15kVA - 167kVA)

Compatible Unit kVA Description Quantity Material ID
BC12L 15 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
634015
412651
BC14L 15 12470 Grounded Y/7200 - 480/240V
Padlock, Disposable
1
1
1000186
412651
BC12N 25 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
634263
412651
BC12P 37.5 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
634312
412651
BC14P 37.5 12470 Grounded Y/7200 - 480/240V
Padlock, Disposable
1
1
1001241
412651
BC12R 50 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
634510
412651
BC12S 75 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
634718
412651
BC12T 100 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
634916
412651
BC14T 100 12470 Grounded Y/7200 - 480/240V
Padlock, Disposable
1
1
634924
412651
BC12TS 167 12470 Grounded Y/7200 - 240/120V
Padlock, Disposable
1
1
635112
412651

Three Phase Pad Mounted Transformers (75kVA - 4200kVA)

Compatible Unit kVA Description Quantity Material ID
BD13S 75 12470 Grounded Y/7200 - 208Y/120V
Padlock, Disposable
1
1
636318
412651
BD13U 150 12470 Gnd Y/7200 - 208Y/120V
Padlock, Disposable
1
1
636714
412651
BD13X 300 12470 Grounded Y/7200 - 208Y/120V
Padlock, Disposable
1
1
637019
412651
BD16X 300 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
637035
412651
BD13ZB 500 12470 Grounded Y/7200 - 208Y/120V
Padlock, Disposable
1
1
637217
412651
BD16ZB 500 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
637233
412651
BD13ZW 750 12470 Grounded Y/7200 - 208Y/120V
Padlock, Disposable
1
1
637415
412651
BD16ZW 750 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
637431
412651
BD13ZD 1000 12470 Grounded Y/7200 - 208Y/120V
Padlock, Disposable
1
1
637605
412651
BD16ZD 1000 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
637613
412651
BD16ZH 1500 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
637811
412651
BD16ZF 2000 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
638017
412651
BD16ZG 2500 12470 Grounded Y/7200 - 480Y/277V
Padlock, Disposable
1
1
638215
412651
    3Ø POWER TRANSFORMERS    
BF16ZJ 3750 12470 Grounded Y/7200 - 480Y/277V & 416y/240V 1 638413
BF16ZK 4200/5250 12470 Grounded Y/7200 - 480Y/277V & 416y/240V 1 638504

Single Phase Submersible Transformers (50kVA - 167kVA)

Compatible Unit kVA Description Quantity Material ID
BE11R 50 12470Grdy/7200 - 120/240V 1 6405092&4
BE11S 75 12470Grdy/7200 - 120/240V 1 6406082&4
BE11T 100 12470Grdy/7200 - 120/240V 1 6407072&4
BE15T 100 12470Grdy/7200 - 277V 1 10024443
BE11TS 167 12470Grdy/7200 - 120/240V 1 6408062&4
BE15TS 167 12470Grdy/7200 - 277V 1 10009113

Notes:

  1. Submersible transformers are intended primarily for maintenance use. They should not be used for new construction, except in certain vault room applications. Consult with Standards.
  2. Transformers with 120/240V low voltage ratings are designed for loop-feed and equipped with two high-voltage terminals, i.e., universal loadbreak bushing wells, and 200A 8.3/14.4kV loadbreak bushings (installed by the District's Transformer Shop).
  3. Transformers with 277V low-voltage ratings shall be designed for radial feed and equipped with a single high-voltage terminal (bushing well) and 200A 8.3/14.4kV loadbreak bushing (installed by the District's Transformer Shop).
  4. 120/240V submersible transformers are equipped with four secondary terminals which may be wired in series for 120/240V single phase or parallel (cutover) for use in 120/208V wye 3Ø transformer banks. Refer to T&D Guideline 4-13 for more information.