ZW20-12 series outdoor high-voltage AC boundary vacuum circuit breaker
Short Description:
ZW20-22F outdoor high-voltage vacuum boundary circuit breaker (watchdog switch) is an outdoor distribution equipment with a rated voltage of 12KV and three-phase AC 50Hz. When there is an internal fault in the user of the T-shaped connection of the 12KV distribution line, or when the protection action time limit is not in line with the protection of the substation outgoing switch, even if it occurs inside the user's incoming switch, it will cause the protection of the substation outgoing switch to disconnect.
Product details
summary:
ZW20-22F outdoor high-voltage vacuum boundary circuit breaker (watchdog switch) is an outdoor distribution equipment with a rated voltage of 12KV and three-phase AC 50Hz. When there is an internal fault in the user of the T-shaped connection of the 12KV distribution line, or when the protection action time limit is not in line with the protection of the substation outgoing switch, even if it occurs inside the user's incoming switch, it will cause the protection of the substation outgoing switch to disconnect. If the fault is permanent and the substation fails to coincide, an accident within a medium voltage user boundary will cause a power outage to the entire distribution line. This kind of common ripple accident in the power grid will cause significant losses to society.
ZW20-22F outdoor high-voltage vacuum boundary circuit breaker (watchdog switch) is installed at the responsibility boundary of overhead distribution lines. At the front end of the user's incoming line, it will automatically cut off single-phase ground faults and phase to phase short circuit faults within the user's boundary, avoiding faults within the user's boundary from affecting the transmission line, ensuring the electrical safety of non faulty users, and improving electrical reliability.
