.ZW8Z-12/□- mouth-excavation intelligent high-voltage AC vacuum circuit breaker (hereinafter referred to as intelligent circuit breaker) is used for AC 50Hz, 12kV three-phase power system, for the purpose of breaking and closing load current, it With overload and short circuit protection function, quick-break protection function, time-delay delay protection function, automatic reclosing function, it can also be equipped with lightning arrester or isolating switch according to strict need (ie circuit breaker and isolation switch combination, hereinafter referred to as "combination intelligent type" Circuit breaker") and so on.
The intelligent circuit breaker has its own power supply (PT power supply or solar power supply), which can be operated remotely and has CT and PT interfaces to meet telemetry requirements. Mobile communication and wireless background communication can also be realized, thereby realizing remote control.