State Grid Zhenjiang Power Supply Company uses visualization technology to safeguard power grids

State Grid Zhenjiang Power Supply Company recently located and resolved a transmission line hazard by deploying visual monitoring devices for transmission lines. To date, the company has installed 2,316 such devices in certain areas of the city, establishing a dense digital monitoring network.

In the past, troubleshooting transmission line faults required maintenance personnel to climb mountains and traverse ridges to inspect each utility pole, a process that typically took an average of two to three days. Now, with the use of visual monitoring devices for transmission lines combined with accurate fault location data, fault points can be pinpointed within 12 hours or even less, increasing troubleshooting efficiency by more than twofold.

To ensure the efficient operation of the visual monitoring system for transmission lines, the company has established a specialized team of five monitoring personnel working in shifts over a 24-hour period. A unified workflow has also been established, seamlessly integrating hazard response with fault support. The system has achieved full visual coverage of all critical crossing sections and primary lines within the region, with an 83 percent coverage rate for 110-kilovolt transmission line corridors. By the end of 2025, the number of deployed devices in the area is expected to exceed 2,500, achieving full visual coverage of 110-kV transmission line corridors at the county level and setting a new benchmark for smart grid development.