zw32-12 series outdoor high vacuum circuit breaker
General
ZW32-12 model Outdoor High Voltage AC Vacuum Circuit breaker is mainly used to break and close load current overload current and short-circuit current in substation, industrial and mining establishments, and urban rural distribution network as a protection and control equipment. Especially suitable for occasions with frequent operating and automatic urban distribution network.
Applicable stads
GB1984"AC High Voltage breaker"
JB3855"3.6~40.5KV Indoor AC High Voltage Vacuum Circuit breaker
And the relevant requirement of IEC
Major Technical Data of Product
Name | Unit | Value |
Rated voltage | KV | 12 |
Rated frequency | Hz | 50 |
Rated current | A | 630 |
Rated short circuit switch-on/off current | KA | 20 |
Rated withstand current(peak value) | KA | 50 |
Rated thermally stable current in 4s | KA | 20 |
Rated short cirduit making current(peak value) | KA | 50 |
Mechanical service life | time | 10000 |
Rated shor circuit switch-on/off current times | time | 30 |
Work withstand voltage(1min):to phase/earth | KV | 34(wet) , 42 (dry)/49 |
Lighting impact withstand current (peak value):to phase/earth | KV | 75/85 |
Secondary circuit 1 min power frequency withstand voltage | KV | 2 |
