ZW10-12 12KV Outdoor Vacuum Breaker Electrical Circuit Breaker Outdoor Breaker

ZW10-12 Series Outdoor High Voltage Vacuum Circuit Breaker is rated voltage 12KV, three phase AC 50HZ outdoor distribution equipment ,mainly used for load current ,overload current and short circuit current of distribution equipment of rural power network, city network, railway, mines and ports ,handoff and protect power grid.
Mainly Technical parameters
No |
Item |
Units |
Parameters |
||
1 |
Rated voltage |
kV |
12 |
||
2 |
Rated current |
A |
630 1250 |
||
3 |
Rated frequency |
Hz |
50 |
||
4 |
Rated short-circuit breaking current |
kA |
12.5 |
16 |
20 |
5 |
Rated peak value withstand current(peak) |
kA |
31.5 |
40 |
50 |
6 |
Rated short time withstand current(4s) |
kA |
12.5 |
16 |
20 |
7 |
Rated short-circuit closing current (peak) |
kA |
31.5 |
40 |
50 |
8 |
Rated short-circuit breaking current breaking number |
Times |
30 |
||
9 |
Mechanical life |
Times |
10000 |
||
10 |
Power frequency withstand voltages(wet) (dry) inter-phase ,earth, fracture |
kV |
42 |
||
11 |
Lightning impulse withstand voltage (peak) inter-phase ,earth, fracture |
kV |
75 |
||
12 |
Secondary circuit 1min power frequency voltages |
kV |
2 |
||
13 |
Net weight |
kg |
150 |
||
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