The breaking and closing of main loop and grounding ioop aer realized by operating device.The speed is determined by the spring,with no regrad to handling speed.The remote inducting and control are available if equipped with automatic instrument.

• 由独立于开关的手动或电动操动机机构进行主回路，接地回路的分合和开断，开关的分合速度由弹簧决定，与手动速度无关，在加装自动化仪表后，可实现遥感和遥控。