1.GeneralHVD32 12KV This vacuum circuit breaker VCB is three-se AC 50Hz, rated voltage 12 kV outdoor high voltage switch equipment. It is mainly used to opening(closing) load current, overload current and short-circuit current. It is suitable to protect or control the city or village electrical power distribution system.
| No. | item | unit | Parameter | ||
| 1 | Rated voltage | KV | 12 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | The 1min rated power frequency withstand voltage | KV | se to se, to Ground42 / Fracture 48 | ||
| 4 | Rated lightning impulse withstand voltage(peak) | KV | se to se, to Ground42 / Fracture 48 | ||
| 5 | Rated short-circuit breaking current | KA | 12.5 | 16 | 20 |
| 6 | Rated current | A | 630 | ||
| 7 | Rated peak withstand current | KA | 31.5 | 40 | 50 |
| 8 | 4s rated short time withstand current | KA | 12.5 | 16 | 20 |
| 9 | Rated operating sequence | O-0.3s-CO-180s-CO(Electric operation) | |||
| 10 | Rated short circuit breaking current breaking times | times | 30 | ||
| 11 | Mechanical life | times | 10000 | ||
| 12 | Secondary circuit 1min power frequency withstand voltage | V | 2000 | ||
| 13 | Opening time(rated voltage) | ms | 30-60 | ||
| 14 | Closing time(rated voltage) | ms | 20-40 | ||
| 15 | Energy storage motor rated power | W | 40 | ||
| 16 | Energy storage motor rated voltage | V | DC220/110 | ||
| 17 | Rated closing operation voltage | V | DC220/110, AC220/110 | ||
| 18 | Rated switching operation voltage | V | DC220/110, AC220/110 | ||
| 19 | Electric energy storage time | ≤8 | |||
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