Electromagnetic starter is used in pit in colliery

The problem that has the potential safety hazard for the colliery winch system that takes band -type brake motor among the solution prior art, the utility model provides an electromagnetic starter isused in pit in colliery is including three phase current end, isolation phase change switch, main motor, band -type brake motor, isolation phase change switch and main motor between set gradually start control unit and corotation the control unit in advance, the parallelly connected setting in advance between start control unit and the forward rotation control unit behind band -type brake motor'sthe input connection band -type brake control unit, parallelly connected group on be provided with the reversal the control unit, isolation phase change switch output in two arbitrary power cords on parallelly connected have a control module who controls in advance start control unit, forward rotation control unit and band -type brake control unit and reversal the control unit break -make. The utility model discloses can s