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VR-32 Voltage Regulator Installation, Operation, and Maintenance Instructions
46
†Load Current Ratings (A)
Rated Rated Regulation Range (Wye and Open Delta)
Volts
kVA
±0% ±8 .75% ±7 .5% ±6 .25% ±5%
Regulation Range (Closed Delta)
±5% ±3 .% ± .3% ± .4% ±7 .5%
50
200
220
240
270
320
75
300
330
360
405
480
100
400
440
480
540
640
2500 125
500
550
600
668
668
167
668
668
668
668
668
250
1000
1000
1000
1000
1000
333
1332
1332
1332
1332
1332
416.3
1665
1665
1665
1665
1665
25
50
55
60
68
80
50
100
110
120
135
160
100
200
220
240
270
320
125
250
275
300
338
400
5000 167
334
367
401
451
534
250
500
550
600
668
668
333
668
668
668
668
668
416.3
833
833
833
833
833
38.1
50
55
60
68
80
57.2
75
83
90
101
120
76.2
100
110
120
135
160
114.3
150
165
180
203
240
167
219
241
263
296
350
7620* 250
328
361
394
443
525
333
438
482
526
591
668
416.3
548
603
658
668
668
500
656
668
668
668
668
667
875
875
875
875
875
833
1093
1093
1093
1093
1093
69
50
55
60
68
80
138
100
110
120
135
160
207
150
165
180
203
240
276
200
220
240
270
320
13800 414
300
330
360
405
480
500
362
398
434
489
579
552
400
440
480
540
640
667
483
531
580
652
668
833
604
664
68
668
668
72
50
55
60
68
80
144
100
110
120
135
160
288
200
220
240
270
320
333
231
254
277
312
370
416
289
318
347
390
462
14400 432
300
330
360
405
480
500
347
382
416
468
555
576
400
440
480
540
640
667
463
509
556
625
668
720
500
550
600
668
668
833
578
636
668
668
668
100
50.2
55
60
68
80
200
100.4
110
120
135
160
333
167
184
200
225
267
19920 400
200.8
220
240
270
320
500
250
275
300
338
400
667
335
369
402
452
536
833
418
460
502
564
668
1000
502
552
602
668
668
172.5
50
55
60
68
80
34500 345
100
110
120
135
160
517
150
165
180
203
240
690
200
220
240
270
320
TAbLE 12
ADD-AMP Capabilities of 60 Hz Ratings
†Load Current Ratings (A)
Rated Rated Regulation Range (Wye and Open Delta)
Volts
kVA
±0% ±8 .75% ±7 .5% ±6 .25% ±5%
Regulation Range (Closed Delta)
±5% ±3 .% ± .3% ± .4% ±7 .5%
33
50
55
60
68
80
66
100
110
120
135
160
99
150
165
180
203
240
132
200
220
240
270
320
6600 198
300
330
360
405
480
264
400
440
480
540
640
330
500
550
600
668
668
396
600
660
668
668
668
55
50
55
60
68
80
110
100
110
120
135
160
165
150
165
180
203
240
220
200
220
240
270
320
11000 330
300
330
360
405
480
440
400
440
480
540
640
550
500
550
600
668
668
660
600
660
668
668
668
75
50
55
60
68
80
150
100
110
120
135
160
225
150
165
180
203
240
15000 300
200
220
240
270
320
450
300
330
360
405
480
600
400
440
480
540
640
750
500
550
600
668
668
160
100
110
120
135
160
16000 320
200
220
240
270
320
110
50
55
60
68
80
220
100
110
120
135
160
22000 330
150
165
180
203
240
440
200
220
240
270
320
660
300
330
360
405
480
880
400
440
480
540
640
165
50
55
60
68
80
33000 330
100
110
120
135
160
495
150
165
180
203
240
333
231
254
277
312
370
660
200
220
240
270
320
* Regulators are capable of carrying current corresponding to rated kVA
when operated at 7200 V.
† 55/65 °C rise rating on VR-32 regulators gives an additional 12%
increase in capacity if the tap-changer’s maximum current rating has
not been exceeded. For loading in excess of the above values, please
refer to your Cooper Power Systems representative.
TAbLE 13
ADD-AMP Capabilities of 50 Hz Ratings