Online Monitoring
CYG provides an integrated intelligent online monitoring solution covering transmission and distribution systems. Transmission monitoring encompasses comprehensive state sensing for overhead lines (e.g., conductor galloping, icing, micro-meteorology, image/video) and cable tunnels (e.g., partial discharge, grounding circulating current, distributed fiber optic temperature measurement, environment and security). The core of substation monitoring is the SE3000 Dissolved Gas Analysis (DGA) online monitoring device, which, based on the gas chromatography principle, continuously monitors nine gases (including H₂, CO, CH₄, C₂H₂) in transformer oil to precisely diagnose internal faults. Through deep integration of primary/secondary systems and intelligent analysis, this solution facilitates the transition from "breakdown maintenance" to "condition-based maintenance," significantly enhancing grid safety and operation efficiency.



