Performance Detection and Analysis of Built-in UHF Sensors for UHV GIS Equipment

The manufacturing and installation process and other issues directly affect the performance of the built-in ultra high frequency partial discharge sensors for GIS equipment. The performance and the placement of the sensors determine the effectiveness of the UHF PD monitoring system for GIS equipment. Therefore, partial discharge sensor performance detection research and on-site test are of great significance. This paper first introduces the characteristics of the UHF method and the performance parameters of the UHF PD sensor. The performance detection system built by the GTEM cell is used to perform the performance detection of the GIS built-in UHF PD sensor. Later, this paper uses network analyzers to carry out on-site UHF PD sensor test, and proposes optimization suggestions for the placement of the built-in UHF PD sensor through the test results.