ZW20-12F Outdoor Medium Voltage Boundary Vacuum Circuit Breaker

ZW20-12F outdoor high voltage vacuum demarcation circuit breaker (watchdog switch) is an outdoor power distribution device with a rated voltage of 12KV and a three-phase AC 50Hz. When the user’s internal fault occurs in the T-type wiring of the 12KV distribution line, or although it occurs inside the user’s incoming switch, but its protection action time limit and the substation’s outgoing switch protection are improper, it will cause the substation’s outgoing switch protection to open. If the fault is permanent and the substation recloses unsuccessfully, an accident in the medium voltage user’s field will cause the entire distribution trunk to be out of power. This common spread accident in the power grid will cause significant losses to society. ZW20-12F outdoor high voltage vacuum demarcation circuit breaker (watchdog switch) is installed at the responsibility demarcation of the overhead power distribution line. The front end of the user’s incoming line will automatically remove the single-phase ground fault and inter-phase short-circuit fault within the user to avoid Faults in the user’s world spread to the main transmission line to ensure the safety of electricity use for non-faulty users and improve the reliability of electricity use.

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Appearance And Installation Dimensions