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Table 10 . Tap connections & voltage levels (50 Hz)
Regulator
Nominal
Voltage
Single-Phase
Rating
Voltage
Internal Tap
1
2
3
6600
6930
–
6600
–
6350
–
6000
–
5500
–
11000
11600
E
11000
E
10000
E
6930
E
6600
E
6350
E
6000
E
5500
E
15000
15000
E
14400
E
13800
E
13200
E
12000
E
11000
E
10000
E
6600
E
22000
22000
E
20000
E
19100
E
15000
E
12700
E
11000
E
10000
E
33000
33000
E
30000
E 1 /P 1
22000
E
20000
E
11600
E
11000
E
10000
E
a
P taps are used with E taps only on regulators where an internal 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.
b
Test terminal voltage and overall potential ratio may vary slightly from one regulator to another. See the regulator
nameplate for determining the exact values.
Ratio-Adjusting Data
a
PT Ratio
RCT Tap
4
5
54.9:1
127
54.9:1
120
54.9:1
115
54.9:1
110
54.9:1
104
/P
91.6:1
127
1
1
/P
91.6:1
120
1
1
/P
91.6:1
110
1
1
/P
55.0:1
127
2
2
/P
55.0:1
120
2
2
/P
55.0:1
115
2
2
/P
55.0:1
110
2
2
/P
55.0:1
104
2
2
/P
120:1
120
1
1
/P
120:1
120
1
1
/P
120:1
115
1
1
/P
120:1
110
1
1
/P
120:1
104
1
1
/P
91.8:1
120
2
2
/P
91.8:1
110
2
2
/P
53.8:1
120
3
3
/P
183.4:1
120
1
1
/P
183.4:1
110
1
1
/P
183.4:1
104
1
1
/P
122.3:1
120
2
2
/P
122.3:1
104
2
2
/P
91.7:1
120
3
3
/P
91.7:1
110
3
3
/P
275.0:1
120
1
1
275.0:1
110
/P
183.3:1
120
2
2
/P
183.3:1
110
2
2
/P
91.7:1
127
3
3
/P
91.7:1
120
3
3
/P
91.7:1
110
3
3
InstallatIon, operatIon, and MaIntenance InstructIons MN225008EN June 2020
VR-32 and EVER-Tap™ Voltage Regulator
Test
Overall
Terminal
Potential
Voltage
b
Ratio
b
6
7
119.2
58.1:1
120.1
54.9:1
120.6
52.6:1
119.2
50.4:1
115.5
47.6:1
119.7
96.9:1
120.1
91.6:1
119.1
84.0:1
119.1
58.2:1
120.1
55.0:1
120.6
52.7:1
119.1
50.4:1
115.5
47.6:1
125.0
120.0:1
120.0
120.0:1
120.0
115.0:1
120.0
110.0:1
115.4
104.0:1
119.9
91.8:1
118.9
84.1:1
122.7
53.8:1
120.0
183.4:1
119.0
168.1:1
120.2
158.9:1
122.7
122.3:1
119.9
106.0:1
120.0
91.7:1
119.0
84.0:1
120.0
275.0:1
119.0
252.1:1
120.0
183.3:1
119.0
168.1:1
119.0
97.0:1
120.0
91.7:1
119.0
84.0:1
37
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