SECTION
BUCK-BOOST TRANSFORMERS
ACME ELECTRIC
•
MILWAUKEE, WI
•
800.334.5214
•
acmetransformer.com
97
{
See chart on page 101.
GROUP I
SELECTION CHARTS
THREE PHASE
THREE PHASE
BOOSTING
Line Voltage
189Y 196Y 201Y 208Y
189
208 220
(Available)
109
Y
113
Y
116
Y
120
Y
Load Voltage
208 234
240
230
208
230 242
(Output)
CAT. NO.
Load kVA
1.50
0.84
0.87
1.66
0.75
0.83 0.87
T181047
Amps
4.17
2.08
2.08
4.17
2.08
2.08 2.08
Max. Size of
10
6
6
10
6
6
6
Fuse or Breaker
Load kVA
3.00
1.69
1.73
3.32
1.50
1.66 1.75
T181048
Amps
8.33
4.17
4.17
8.33
4.17
4.17 4.17
Max. Size of
15
10
10
15
10
10
10
Fuse or Breaker
Load kVA
4.50
2.53
2.60
4.98
2.25
2.49 2.62
T181049
Amps
12.50
6.25
6.25
12.50
6.25
6.25 6.25
Max. Size of
20
15
15
20
15
15
15
Fuse or Breaker
Load
kVA
7.51
4.22
4.33
8.30
3.75
4.15 4.37
T181050
Amps
20.83 10.42 10.42
20.83 10.42 10.42 10.42
Max. Size of
30
20
20
30
15
15
15
Fuse or Breaker
Load kVA
15.01
8.44
8.66
16.60
7.51
8.30 8.73
T181051
Amps
41.67 20.83 20.83
41.67 20.83 20.83 20.83
Max. Size of
60
35
35
60
30
30
30
Fuse or Breaker
Load kVA
22.52 12.67 12.99
24.90 11.26 12.45 13.10
T181052
Amps
62.50 31.25 31.25
62.50 31.25 31.25 31.25
Max. Size of
90
50
50
90
45
45
45
Fuse or Breaker
Load kVA
30.02 16.89 17.32
33.20 15.01 16.60 17.46
T111683
Amps
83.33 41.67 41.67
83.33 41.67 41.67 41.67
Max. Size of
125
70
70
125
60
60
60
Fuse or Breaker
Load kVA
45.03 25.33 25.98
49.80 22.52 24.90 26.20
T111684
Amps
125.00 62.50 62.50 125.00 62.50 62.50 62.50
Max. Size of
175
100
100
175
90
90
90
Fuse or Breaker
Load kVA
60.04 33.77 34.64
66.40 30.02 33.20 34.93
T111685
Amps
166.67 83.33 83.33 167.67 83.33 83.33 83.33
Max. Size of
250
125
125
250
125
125
125
Fuse or Breaker
Load kVA
90.07 50.66 51.96
99.59 45.03 49.80 52.39
T111686
Amps
250.00 125.00 125.00 250.00 125.00 125.00 125.00
Max. Size of
350
200
200
350
175
175
175
Fuse or Breaker
Load kVA
150.11 84.44 86.60 165.99 75.06 82.99 87.32
T111687
Amps
416.67 208.33 208.33 416.67 208.33 208.33 208.33
Max. Size of
600
350
350
600
300
300
300
Fuse or Breaker
Load kVA
225.17 126.66 129.90 248.98 112.58 124.49 130.99
T211688
{
Amps
625.00 312.50 312.50 625.00 312.50 312.50 312.50
Max. Size of
1000
500
500
1000
450
450
450
Fuse or Breaker
Load kVA
300.22 168.87 173.21 331.98 150.11 165.99 174.65
T211689
{
Amps
833.33 416.67 416.67 833.33 416.67 416.67 416.67
Max. Size of
1200
700
700
1200
600
600
600
Fuse or Breaker
Quantity Required
3
3
3
3
2
2
2
See Page 102 For
A-A
F-F
F-F
A-A
B-B
B-B
B-B
Connection Diagrams
BUCKING
219
230 250
255
264
208 208 227
232 240
1.58
0.83
0.90
0.92
0.95
4.39
2.30
2.29
2.29
2.29
10
6
6
6
6
3.16
1.66
1.80
1.84
1.91
8.77
4.61
4.59
4.58
4.58
15
10
10
10
10
4.74
2.49
2.71
2.76
2.86
13.16 6.91
6.88
6.87
6.88
20
15
15
15
15
7.90
4.15
4.51
4.60
4.76
21.94 11.52 11.47 11.45 11.46
30
15
15
15
15
15.80 8.30
9.02
9.20
9.53
43.87 23.04 22.94 22.90 22.92
60
30
30
30
30
23.71 12.45 13.53 13.80 14.29
65.81 34.56 34.42 34.35 34.38
80
40
40
40
40
31.61 16.60 18.04 18.40 19.05
87.74 46.07 45.89 45.80 45.83
110
60
60
60
60
47.41 24.90 27.06 27.60 28.58
131.61 69.11 68.83 68.70 68.75
175
80
80
80
80
63.22 33.20 36.08 36.81 38.11
175.48 92.15 91.78 91.59 91.67
225
110
110
110
110
94.83 49.80 54.13 55.21 57.16
263.22 138.22 137.67 137.39 137.50
350
175
175
175
175
158.05 82.99 90.21 92.02 95.26
438.70 230.37 229.44 228.99 229.17
600
300
300
300
300
237.07 124.49 135.32 138.02 142.89
658.05 345.55 344.16 343.48 343.75
800
400
400
400
400
316.10 165.99 180.42 184.03 190.53
877.40 460.74 458.88 457.97 458.33
1200
600
600
600
600
2
2
2
2
2
C-C
E-E
E-E
E-E
E-E
