Research and development of three-station isolating switch operating mechanism for 10 kV-3 150 A environmental protection inflatable cabinet

The environmental protection inflatable cabinet filled with dry air is one of the development trends in recent years.The three-station disconnecting switch is one of the main core components in the environmental protection inflatable cabinet.In order to ensure the reliable operation of switchgear power off and on, it is very important to put the three-station disconnecting switch in place reliably.Aiming at environmental aeration tank,through the lead screw and gear transmission and the four bar linkage interlock, a 12 kV-3 150 A environmental aeration tank with sod disconnecting switch operating mechanism is designed, which can realize manual and electric sod disconnecting switch of transmission, and carry out three points, and earthing etc. The location of the electric and manual synchronization precise instructions and in place after the synchronous brake, manual and electric synchronization unlock after launch, from two sides of the transmission and interlock mechanism, reliable operation, high safety, and has been widely used in three working straight acting isolating switch.