ZW32-12 Series Outdoor High Voltage Vacuum Circuit Breaker
ZW32-12 Series Outdoor High Voltage Vacuum Circuit Breaker
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ZW32-12 Type Outdoor High Voltage Vacuum Circuit Breaker
Application
ZW32-12 type outdoor high voltage vacuum circuit breaker is 3-phase AC50/60Hz outdoor power distribution equipment with the rated voltage of 12kV. It is mainly used to break and close the load current, over load current, and short circuit current in the electric power system. It fits to be used to protect and control the circuit in substation, mining and industrial enterprises. And the frequently operation places such as the rural power network. It can also be the section switch of power grid, after adding controller, distribution network automation is available.
Technical parameter
|
No. |
Item |
Unit |
Value |
|
1 |
Rated voltage |
kV |
12 |
|
2 |
Rated frequency |
Hz |
50 |
|
3 |
Rated current |
A |
630 |
|
4 |
Rated short-circuit breaking current |
kA |
20 |
|
5 |
Rated peak withstand current |
kA |
50 |
|
6 |
Rated short-time withstand current (4s) |
kA |
20 |
|
7 |
Rated short circuit close current (peak) |
kA |
50 |
|
8 |
Mechanical life |
times |
10000 |
|
9 |
Rated short open circuit current switching frequency |
times |
30 |
|
10 |
1 min power frequency withstand voltage(wet)(dry) alternate with, on/fracture |
kV |
42/48 |
|
11 |
Lightning impulse withstand voltage(peak) relative to ground/fracture |
kV |
75/85 |
|
12 |
Secondary loop 1min power frequency withstand voltage |
kV |
2 |
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