Switchgear type SF-2

Switchgear SF-2 (with frequency converter) is an electrical device designed for use in underground mining, with no explosion hazard present and on the ground, with no explosion hazard present. Switchgear SF-2 (with frequency converter) is used for connecting and switching receivers (especially mining driver-gear that requires speed control, for example fans, pumps, belt conveyors) to the mine 3-phase power grid with isolated star point of the transformer (IT system ) for 500V rated voltage. The receiver is connected to the switchgear via a terminal by cable gland. Switchgear SF-2 is equipped with a power protections against short-circuits (option with fuse disconnector), overloads, lowering of earth resistance and continuity of the earthing control system.