FIELD: electrical engineering.
SUBSTANCE: invention is related to devices of high-voltage equipment insulation condition diagnostics in process of operation (insulation condition monitoring). Tire relay contacts are serially connected in the device to element of indication and switch, and winding of time relay is connected to control circuits of high-voltage breakers of distribution device, in which threshold level of partial discharges is monitored. Thereby, false actuations of device are eliminated during operation in insulation monitoring mode by breaking of measuring circuit for the time of switching of high-voltage breakers of distribution device.
EFFECT: elimination of false actuations of device for control of threshold level of partial discharges during operation in mode of insulation condition monitoring.
1 dwg
