ZW32-24 series dry circuit breakers on outdoor high voltage vacuum columns are the control and protection equipment in three-phase AC high voltage distribution network with rated voltage of 24KV and frequency of 50Hz.It is mainly used for switching off and closing the load current, overload current and short circuit current in power lines. It is used for protection and control in substation and distribution system of industrial and mining enterprises. The circuit breaker adopts column type, dry type structure, reliable insulation, long electrical life, maintenance free, especially suitable for the requirements of frequent operation. More suitable for maintenance, maintenance capacity is not strong rural power grid installation and use.