Multi Functional Vacuum Insulated Switchgear Overvoltage For Mining

Multi Functional Vacuum Insulated Switchgear Overvoltage For Mining Description: KJZ4-630/1140 (600) mine use flame-proof and intrinsically safe multi-functional vacuum switchgear is designed for a belt conveyor installed at a continuous miner work face. It is suitable for underground mines on a. c. 50Hz, 1140V/660V power supply system. It integrates the protections along the belt conveyor, equipment start/stop control and other functions into one system for achieving start