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Three Phase AC 50HZ 40.5kv(36kv) ZN85 High Voltage Vacuum Circuit Breaker
4.1 circuit breakers main fixed parameters (table 1)
| Serial number | Parameter name | Unit | Specification parameter | ||
| 1 | Rated voltage | kV | 40.5 | ||
| 2 | 1min labor frequency durable voltage (has effect value) | kV | 95 | ||
| 3 | Lightning surge withstanding voltage (peak value) | kV | 185 | ||
| 4 | Nominal frequency | Hz | 50 | ||
| 5 | Nominal current | A | 1250 , 1600 , 2000 | ||
| 6 | Fixed short-time withstanding electric current | kA | 25 , 31.5 | ||
| 7 | Fixed peak value withstanding electric current | kA | 63 , 80 | ||
| 8 | The rating short-circuits the duration | s | 4 | ||
| 9 | The rating short-circuits the drop-out current | kA | 25 , 31.5Three Phase AC 50HZ 40.5kv36kv ZN85 High Voltage Vacuum Circuit Breaker |
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