DEVICE FOR CONTINUOUS SIGNAL CONTROL OF PARTIAL DISCHARGES AND DETECTION OF THEIR HEART AT A POWER SUBSTATION UNDER CONDITIONS OF OPERATION

摘要

The technical solution relates to the field of measurement and can be used to measure partial discharge signals in the electrical insulation of three-phase high-voltage devices under operating voltage in order to diagnose the occurrence of defects with the possibility of monitoring both the system of high-voltage devices as a whole and its individual elements. The task that is proposed to be solved by this technical solution is to increase the diagnostic speed of high-voltage devices and reduce the complexity of connecting diagnostic systems. A device for continuously monitoring the signal of partial discharges and detecting their source at a power substation under operating conditions, consisting of at least an active part in the form of a system of electrically connected elements connected under high voltage and surrounded by insulation layers, containing processing and registration circuits signal of partial discharges and at least one sensor-receiver of the signal of partial discharges, a switch and probes are also used, connected to the monitored devices and to the inputs of comm Tatorey, and probes connecting the switch directly to instrument transformers, bypassing the capacitive dividers. 1 ill.