ZW32-12,24,40.5 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor power distribution equipment with rated voltage of 12KV,24KV or 40.5KV and three-phase AC 50Hz. It is mainly used to break and close the load current, overload current and short circuit current in the power system. It is suitable for protection and control in substation and industrial and mining enterprise substation systems, and places where rural power grids operate frequently.
The circuit breaker has the characteristics of small size, light weight, anti-condensation and maintenance-free, and can adapt to harsh weather conditions and dirty environments.
|
No. |
Item |
Unit |
parameter |
|
1 |
Rated voltage |
KV |
12,24,40.5 |
|
2 |
Rated frequency |
Hz |
50 |
|
3 |
Rated current |
A |
6,301,250,200,025,000,000 |
|
4 |
Rated short-circuit breaking current |
KA |
20 |
|
5 |
Rated peak withstand current (peak) |
KA |
50 |
|
6 |
Rated short-time withstand current |
KA |
20 |
|
7 |
Rated short circuit closing current (peak) |
KA |
50 |
|
8 |
Mechanical life |
Time |
10000 |
|
9 |
Rated short circuit current breaking times |
Time |
30 |
|
10 |
Power frequency withstand voltage (1min): (wet) (dry) phase, ground, fracture |
KV |
42/48 |
|
11 |
Lightning impulse withstand voltage (peak), phase to ground, fracture |
KV |
75/85 |
|
12 |
Secondary circuit 1min power frequency withstand voltage |
KV |
2 |
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