| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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ZW20-12 high voltage vacuum breaker is outdoor power distribution equipment, with rated voltage 10-12kV, which is widely applies for protecting and controlling power distribution systems in transformer substations, industrial and mining establishments. The circuit breaker also frequently used in county electric networks. It can be as a ring network power supply unit and terminal unit to distribute electric energy, control and protect electric equipments. Combined with the isolate switch and intelligent controller, the breaker can be smart to control andmonitor load current, over-load current and short circuit current in power systems.
| item | unit | data |
| rated voltage | kv | 12 |
| rated current | a | 630 |
| rated frequency | hz | 50 |
| Rated short-circuit breaking current | ka | 20 |
| Rated peak closing current | ka | 50 |
| Rated dynamic stabilizing current peak | ka | 50 |
| 4s thermal stabilization current | ka | 20 |
| Rated sequence of operation | o-0.3s-co-180s-co | |
| Rated storage voltage | v | AC220 |
| Maximum and minimum storage motor voltage | v | AC264/43 |
| Rated breaking operation voltage | v | AC220 |
| Maximum and minimum breaking operation voltage | v | AC264/43 |
| non-simultaneous opening and closing of the gate | ms | ≤2 |
| SF6 gas pressure rating | Mpa | 0.01 |
| Rated short-circuit current breaking times | times | 30 |
| mechanical life | times | 10000 |
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