Control ground continuity relay UKU/S

The control continuity of the ground relay of the adjustable resistance tripping type UKU/S is designed to control the value of ground resistance of the receiver. The system is designed for use in 3-phase grids with rated voltage of 400V, 500V, 1000V with insulated neutral point of the transformer and in devices designed to operate on the ground or in mine face pits in non-explosive conditions, in conditions without methane explosion hazard and classified as A coal-dust explosion hazard. In the measuring circuit can be engaged contacts locks or other elements of the control circuit, thereby carring out no voltage, remote control of external devices.