Method for detecting partial discharge of gas insulated switchgear

The invention provides a method for detecting partial discharge of a gas insulated switchgear (GIS). The method is a comprehensive detecting method combining ultra-high frequency detection and acoustic emission detection to monitor and position the partial discharge in the GIS. The method for detecting the partial discharge of the GIS is more effective in the monitoring of the partial discharge ofthe GIS, and is more scientific and favorable for the scientific research of the partial discharge of the GIS because the acquired ultra-high frequency characteristic data and acoustic emission characteristic data can be compared and analyzed mutually; and after the initial positioning of the ultra-high frequency characteristic data, acoustic emission detection positioning is performed in a smallrange of discharge area, so the problem of low efficiency of the acoustic emission detection is solved, the positioning is more accurate and effective, and the accurate position of a discharge pointcan be discovered more quickly.