| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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Outdoor high voltage vacuum circuit breaker is rated voltage 12kV, three-phase AC 50Hz outdoor distribution equipment,which is mainly used for breaking, closing power system load current, overload current, short-circuit current. For substation and industrial and mining enterprises distribution system for the protection and control of the role and place of rural power grids frequent operation.The circuit breaker has small size, light weight, anti-condensation,maintenance-free characteristics, can adapt to poor weather conditions and dirty environments.
The ambient air temperature:-40ºC~+45ºC
Altitude: not exceed 2000m
The ambient air can be contaminated dust, smoke, corrosive gases, vapors or salt spray
The wind speed does not exceed 34m / s (equivalent to 700pa on the cylindrical surface)
Vibration or earth from the switch and control equipment at the Ministry is negligible
Contamination Level: IV Class
Efficient and reliable permanent magnet operating mechanism
High sealing performance of the three-phase pillar type completely enclosed structure
The circuit breaker can be configured with a single-side or double-side isolator switch
| Name | Unit | Data |
| Rated voltage | kV | 12 |
| Rated power frequency | Hz | 50 |
| Rated current | kA | 630/1250 |
| Rated short-circuit breaking current | kA | 20/25 |
| Rated withstand current(peak) | kA | 50/63 |
| Rated short-time withstand current(4s) | kA | 20/25 |
| Rated short-circuit making current(peak) | kA | 50/63 |
| Mechanical life | times | 10000 |
| Rated short-circuit breaking time | times | 30 |
| Power frequency withstand voltage (1min) :( wet) (dry) white, right / fracture | kV | 42/48 |
| Lightning impulse withstand voltage (peak) and white, right / fracture | kV | 75/85 |
| Secondary circuit 1min power frequency withstand voltage | kV | 2 |
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