zw20-12f outdoor column intelligent vacuum circuit breaker is an outdoor distribution equipment with 12kv for the highest rated voltage and 50hz three-phase ac. the utility model is mainly used for load current, overload current and short circuit current in the open and close power system of the distribution network.
. |
item |
unit |
data |
1 |
rated voltage |
kv |
36 |
2 |
rated current |
a |
630/1250/1600 |
3 |
rated frequency |
hz |
50/60 |
4 |
rated short circuit current |
ka |
20/25/31.5 |
5 |
rated short time withstand current(4s) |
ka |
50/63/80 |
6 |
rated peak withstand current |
ka |
50/63/80 |
7 |
rated power frequency withstand voltage |
kv |
95 |
8 |
rated lightning impluse withstand voltage |
kv |
185 |
9 |
secondary loop 1 min power frequency withstand voltage |
kv |
2 |