Overview

The ZW32-12M(D)630-20 series outdoor intelligent (watchdog) high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear for three-phase AC 50Hz with a rated voltage of 12kV. The intelligent circuit breaker is mainly used as a 10kV outgoing line switch in substation and as a load current dividing and merging switch in 10kV level three-phase AC power systems. It serves as a circuit protection switch for opening overload and short-circuit currents. It also meets control and measurement, and metering requirements, and can realize remote control and monitoring functions, achieving the "four remote" functions (i.e., remote control, remote signal, remote measurement, and remote adjustment). The circuit breaker conforms to the technical standards such as GB1984-2003 "High-voltage AC Circuit Breaker," DU/T402-2007 "Technical Conditions for Ordering High-voltage AC Circuit Breakers," and DLT403-2000 "Technical Conditions for Ordering 12kV-40.5kV High-voltage Vacuum Circuit Breakers."