Vacuum Circuit Breaker ZW20-12F
Vacuum Circuit Breaker ZW20-12F is a circuit protection device applied at user demarcation points of 10kV distribution networks. It consists of three core parts: the circuit breaker main body, fault detection controller and external voltage transformer. Electrical connection between these components is realized via aviation connectors and outdoor sealed control cables.
Description
Vacuum Circuit Breaker ZW20-12F is a circuit protection device applied at user demarcation points of 10kV distribution networks. It consists of three core parts: the circuit breaker main body, fault detection controller and external voltage transformer. Electrical connection between these components is realized via aviation connectors and outdoor sealed control cables. It is applicable to power grid systems with ungrounded neutral points or neutral points grounded via arc suppression coils.
Vacuum Circuit Breaker ZW20-12F features a fully sealed structure, supports distribution network automation and possesses high breaking capacity.
Equipped with high-performance vacuum interrupters, it delivers strong breaking capacity, rapid arc extinction and long service life.
It can automatically isolate phase-to-phase short-circuit faults.
If the outgoing line protection at the substation trips, the faulty line will be isolated passively after substation reclosing operation, enabling other branch users on the feeder to resume power supply quickly.
The conductive parts feature excellent electrical conductivity, low resistivity, large current-carrying capacity as well as outstanding corrosion resistance and oxidation resistance.
Product specifications
| Product Name | Vacuum Circuit Breaker |
| Model | ZW20-12/630-20 |
| Rated Current | 630A |
| Rated Voltage | 12KV |
| Rated Frequency | 50Hz |
| Rated Short-duration Power Frequency Withstand Voltage | 42KV |
Application
Application scenarios: power engineering construction, high-voltage complete switchgear, distribution automation industry, rail transit and other fields.
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