Switchgear set ZB-91

Switchgear set type ZB-91 is an electrical device designed for use in underground mining pits in non-explosion hazard conditions and on the ground in non-explosive hazard conditions. Switchgear set ZB-91 comprises of four switchgear units type RKS4-1P/2R and one type RKS3-2RP/42R and of control cabinet type SA-P2RW, mounted in a common structure Switchgear set ZB-91 is designed for connecting and switching-on receivers (especially conveyor belts) to the mine 3-phase grid with insulated star point on the transformer (system IT) for rated voltage of 500V.