Section 9: Appendix
Regulator
Voltage
Rating
1
Nominal
Single
Phase
Voltage
2
Ratio-Adjusting Data
Test
Terminal
Voltage
**
6
Overall
Potential
Ratio
**
7
Internal
Tap*
3
PT
Ratio
4
RCT
Tap
5
2500
2500
2400
-
-
20:1
20:1
120
120
125
120
20:1
20:1
5000
5000
4800
4160
2400
E1/P1
E1/P1
E1/P1
E2/P2
40:1
40:1
40:1
20:1
120
120
104
120
125
120
120
120
40:1
40:1
34.7:1
20:1
7620
8000
7970
7620
7200
6930
4800
4160
2400
E1/P1
E1/P1
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E3/P3
60:1
60:1
60:1
60:1
60:1
40:1
40:1
20:1
133
133
127
120
115
120
104
120
120.5
120
120
120
120.5
120
120
120
66.5:1
66.5:1
63.5:1
60:1
57.5:1
40:1
34.7:1
20:1
13800
13800
13200
12470
12000
7970
7620
7200
6930
E1/P1
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E2/P2
E2/P2
115:1
115:1
115:1
115:1
57.5:1
57.5:1
57.5:1
57.5:1
120
115
104
104
133
133
120
120
120
120
125
125
125
120
120
120.5
115:1
110.2:1
99.7:1
99.7:1
63.7:1
63.7:1
57.5:1
57.5:1
14400
14400
13800
13200
12000
7970
7620
7200
6930
E1/P1
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E2/P2
E2/P2
120:1
120:1
120:1
120:1
60:1
60:1
60:1
60:1
120
115
110
104
133
127
120
115
120
120
120
115.5
120
120
120
120.5
120:1
115:1
110:1
104:1
66.5:1
63.5:1
60:1
57.5:1
19920
19920
17200
16000
15242
14400
7960
7620
7200
E1/P1
E1/P1
E2/P2
E2/P2
E2/P2
E3/P3
E3/P3
E3/P3
166:1
166:1
120:1
120:1
120:1
60:1
60:1
60:1
120
104
133
127
120
133
127
120
120
119.5
120.5
120
120
120
120
120
166:1
143.9:1
133:1
127:1
120:1
66.5:1
63.5:1
60:1
34500
34500
19920
E1/P1
E2/P2
287.5:1
165.5:1
120
120
120
120.5
287.5:1
165.5:1
Regulator
Voltage
Rating
1
Nominal
Single
Phase
Voltage
2
Ratio-Adjusting Data
Test
Terminal
Voltage
**
6
Overall
Potential
Ratio
**
7
Internal
Tap*
3
PT
Ratio
4
RCT
Tap
5
6600
6930
6600
6350
6000
5500
-
-
-
-
-
55:1
55:1
55:1
55:1
55:1
127
120
115
110
104
119.1
120
120.5
119
115.4
58.2:1
55:1
52.7:1
50.4:1
47.7:1
11000
11600
11000
10000
6930
6600
6350
6000
5500
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E2/P2
E2/P2
E2/P2
91.7:1
91.7:1
91.7:1
55:1
55:1
55:1
55:1
55:1
127
120
110
127
120
115
110
104
119.5
120
119
119.1
120
120.5
119
115.4
96:1
91.7:1
84.1:1
58.2:1
55.1:1
52.7:1
50.4:1
47.7:1
15000
15000
14400
13800
13200
12000
11000
10000
8600
E1/P1
E1/P1
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E3/P3
120:1
120:1
120:1
120:1
120:1
92.7:1
92.7:1
72.9:1
120
120
115
110
104
120
110
120
125
120
120
120
115.4
118.7
117.7
118
120:1
120:1
115:1
110:1
104:1
91.8:1
84.1:1
72.9:1
22000
23000
22000
20000
19100
15000
12700
11000
10000
E1/P1
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E3/P3
E3/P3
183.4:1
183.4:1
183.4:1
183.4:1
122.3:1
122.3:1
91.7:1
91.7:1
127
120
110
104
120
104
120
110
118.5
120
119
120.2
122.6
119.8
120
119
194.1:1
183.4:1
168.1:1
158.9:1
122.3:1
106:1
91.7:1
84.1:1
33000
34500
33000
30000
22000
20000
11600
11000
10000
E1/P1
E1/P1
E1/P1
E2/P2
E2/P2
E3/P3
E3/P3
E3/P3
275:1
275:1
275:1
183.3:1
183.3:1
91.7:1
91.7:1
91.7:1
127
120
110
120
110
127
120
110
118.5
120
119
120
119
119.5
120
119
291:1
275:1
252.1:1
183.3:1
168:1
97:1
91.7:1
84.1:1
Table 14 . VR-32 tap connections and voltage levels
(60 Hz)
* P taps are used with E taps only on regulators where an internal differen-
tial potential transformer is used in conjunction with the control winding to
provide voltage supplies to the control. See nameplate for verification of
this type of control supply.
** Test terminal voltage and overall potential ratio may vary slightly from one
regulator to another. See the regulator nameplate for determining the
exact values.
Table 15 . VR-32 tap connections and voltage levels
(50 Hz)
* P taps are used with E taps only on regulators where an internal differen-
tial potential transformer is used in conjunction with the control winding
to provide voltage supplies to the control. See nameplate for verification
of this type of control supply.
** Test terminal voltage and overall potential ratio may vary slightly from one
regulator to another. See the regulator nameplate for determining the
exact values.
165
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS
MN225003EN April 2018
CL-7 Voltage Regulator Control