Switch Equipment Live Detection Typical Experience and New Technology Research

Starting from the three common switching defects of damp, suspended discharge and air leakage, this paper focuses on a series of targeted detection methods and detection experience such as UHF partial discharge, transient ground voltage, ultrasonic detection and SF6 gas leakage detection through actual case data. At the same time, it also introduces the practical application of new non-electric detection technologies such as acoustic imaging, action characteristics, X-ray and metal detection, so as to improve the detection dimension of switching equipment.