outdoor AC three-phase circuit breakers are applicable to 12kV distribution networks, capable of breaking and making load current, overload current and short-circuit current to perform protection and switching of the network. circuit breakers, when combined with intelligent controller, can be used on distribution lines as recloser and sectinalizer, or independently installed in medium- and small- scale substations or distribution center to improve service reliability. It occupies small floor space, resulting in reduction of project cost. When used on distribution lines, in coordination with other switchgear can automatically clear and isolate faults, automatically transfer power source, and automatically restore power supply. Moreover, it can communicate via FRTU with distribution control center, realizing telemetering, remote signaling, remote regulating and remote control, an ideal automatic device for power distribution.
