This mine explosion-proof type vacuum feeder switch is mainly used as low-voltage feederswitch for mobile substation(After the cover board is opened, it is oppositely connected withdry transformer) or main switch or branch switch in AC 50Hz power distribution system ofindirect neutral-point earthing with voltage of 1140V or 660V and current of 1000A or 800Ain underground coal mines with explosive and dangerous gas(methane) and coal dust and itis also used for non-frequent start of big capacity motor.
Blue screen real-time English display for parameters like voltage, current, insulatingvalue and switching-on times etc
Standard RS485/232 communication interface
Multiple Protective functions for overload, short circuit, loss of phase, electric leakage,leakage lockout, over voltage, under voltage etc.
Function of fan and power supply lockout, gas lockout, high-voltage electric interlock