JC-OM400 GISThe partial discharge online monitoring system is used to monitor and analyze the partial discharge signals inside gas insulated switchgear (GIS) equipment. The collected signals are processed through filtering and amplification, and then output to the data analysis system for centralized analysis, display, and alarm output, thereby monitoring and evaluating the operating status of GIS equipment, effectively avoiding sudden accidents of GIS high-voltage equipment. The system adopts UHF ultra-high frequency sensor signal detection technology, sensor optimization layout technology, and SQL database analysis. The system is widely used in SF6 circuit breakers GIS、 Reliability monitoring and diagnosis of cabinet switches, pole mounted switches, transformers, and mutual inductors. Realize digitalization of substation maintenance. Jiangsu Jiuchuang Electric Technology Co., Ltd