| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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outdoor high-voltage alternating-current vacuum circuit breaker is a new outdoor high-voltage alternating-current switchgear of our vacuum circuit breaker series. Its rated voltage is 40.5kV. It applies to places with such voltage level, including overhead lines, industria' and mining enterprises, power stations, substations, etc. Under its normal operating conditions and specified technical parameters, it can satist,. the system protection requirements of the grid. It is characterized by automatic re-making, stable operation and long electric life.
Ambient temperature:-40ºC~+40ºC
Altitude:≤2000m
Relative humidity:≤95% (daily average) or ≤90% (monthly average)
Wind speed:≤34m/s (equivalent to a pressure of 700pa on a cylindrical surface)
Pollution grade:≤IV
The circuit breaker adopts a permanent magnet operating mechanism
Permanent magnet mechanism is divided into electric and manual
Vacuum interrupter for circuit breaker
| Item | Unit | Reference value | |
| Rated voltage | kV | 40.5 | |
| Rated insulation level | Lightning impulse withstand voltage | kV | 185 |
| 1min power-frequency withstand voltage | kV | 95 | |
| Rated frequency | Hz | 50/60 | |
| Rated current | A | 630/1250/1600/2000/2500 | |
| Rated short-circuit breaking current | kA | 20/25/31.5 | |
| Rated short-circuic making current (peak value) | kA | 50/63/80 | |
| Rated short-time withstand current | kA | 20/25/31.5 | |
| Rated withstand current (peak value) | kA | 50/63/80 | |
| Rated operation sequence | O-0.3s-C0-180s-CO | ||
| Rated short-circuit duration | s | 4 | |
| Times of making-breaking with the rated short-circuit current | times | 30 | |
| Mechanical life | M2 level | ||
| Weight | kg | 280 | |
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