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ABB VUCG.N - Withstand Voltages; VUCG with Tap Selector C; VUCG with Tap Selector III Unshielded Version

ABB VUCG.N
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1ZSC000562-AAX en, Rev. 1 | Technical guide VUC 23
Withstand voltages
VUCG with tap selector C
All values given as 1.2/50 µs impulse withstand voltage (kV) – power frequency withstand voltage (kV).
a1 is not valid since the contact locations are such that electrically adjacent contacts are never physically adjacent, see
connection diagrams in this document.
Type of
regulation
No. of
positions
Within one phase Between phases for neutral point
a2 c1 f1 f2 e1 b2 b1 d1
L -14 350-140 - - - 100-20 100-20 400-150 -
L 15-16 290-120 - - - 100-20 100-20 300-125 -
L 17-18 250-95 - - - 100-20 100-20 300-125 -
R -13 350-140 - - - 100-20 100-20 400-150 -
R 14-15 250-95 - - - 100-20 100-20 300-125 -
R 16-27 350-140 - - - 100-20 100-20 400-150 -
R 28-31 290-120 - - - 100-20 100-20 300-125 -
R 32-35 250-95 - - - 100-20 100-20 300-125 -
D -13 350-140 400-150 400-150 400-150 100-20 100-20 400-150 400-150
D 14-15 250-95 350-140 350-140 350-140 100-20 100-20 300-125 350-140
D 16-27 350-140 400-150 400-150 400-150 100-20 100-20 400-150 400-150
D 28-31 290-120 350-140 350-140 350-140 100-20 100-20 300-125 350-140
D 32-35 250-95 350-140 350-140 350-140 100-20 100-20 300-125 350-140
Table 5.
VUCG with tap selector III unshielded version
All values given as 1.2/50 µs impulse withstand voltage (kV) – power frequency withstand voltage (kV).
Type of
regulation
No. of
positions
Within one phase Between phases for neutral
point
a1 a2 c1 f1 f2 e1 b2 b1 d1
L -14 300-125 490-150 - - - 100-20 100-20 500-160 -
L 15-16 300-125 420-150 - - - 100-20 100-20 500-160 -
L 17-18 300-125 350-140 - - - 100-20 100-20 500-160 -
R -11 300-125 490-150 - - - 100-20 100-20 500-160 -
R 12-13 300-125 420-150 - - - 100-20 100-20 500-160 -
R 14-15 300-125 350-140 - - - 100-20 100-20 500-160
R 16-27 300-125 490-160 - - - 100-20 100-20 500-160 -
R 28-31 300-125 420-150 - - - 100-20 100-20 500-160 -
R 32-35 300-125 350-140 - - - 100-20 100-20 500-160 -
D -11 300-125 490-160 600-200 600-200 600-200 100-20 100-20 500-160 600-200
D 12-13 300-125 420-150 600-200 600-200 600-200 100-20 100-20 500-160 600-200
D 14-15 300-125 350-140 600-200 600-200 600-200 100-20 100-20 500-160 600-200
D 16-27 300-125 490-160 600-200 600-200 600-200 100-20 100-20 500-160 600-200
D 28-31 300-125 420-150 600-200 600-200 600-200 100-20 100-20 500-160 600-200
D 32-35 300-125 350-140 600-200 600-200 600-200 100-20 100-20 500-160 600-200
Table 6.

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