SYSTEM FOR ANALYSIS OF PARTIAL DISCHARGE DEFECTS OF GAS INSULATED SWITCHGEAR

摘要

A system for analysis of partial discharge defects of a gas insulated switchgear, includes: a detecting sensor (100) configured to sense a signal generated from the gas insulated switchgear; one or more neighboring sensors (200) arranged close to the detecting sensor, and configured to sense a signal generated from the periphery of the detecting sensor; a controller (300) configured to determine whether the signal sensed by the detecting sensor is a partial discharge signal or not, configured to calculate a partial discharge charge amount and the number of times of partial discharges based on a detection signal sensed by the neighboring sensor when the partial discharge signal is sensed, if it is determined that the signal sensed by the detecting sensor is the partial discharge signal, configured to display partial discharge signal information on the partial discharge signal and detection signal information on the detection signal when the partial discharge charge amount and the number of times of partial discharges are more than a reference value, and configured to display only the partial discharge signal information on the partial discharge signal when the partial discharge charge amount and the number of times of partial discharges are less than the reference value; and a display unit (400) configured to display only the partial discharge signal information, or both the partial discharge signal information and the detection signal information, under control of the controller.