At present, it is the golden period for spring maintenance. State Grid Zhejiang Jiaxing Power Supply Company is based on the core requirements of safe and stable operation of the power grid, scientifically coordinating and accurately deploying, taking "improving quality and efficiency, intelligent empowerment" as the starting point, synchronously promoting the substation grounding change and wireless temperature measurement device installation and renovation projects, taking multiple measures to fill in the gaps and weaknesses, comprehensively improving the efficiency of power grid operation and maintenance and power supply reliability, and laying a solid foundation for the safe and stable operation of the power grid throughout the year.

In the 110 kV Zhendong Substation and Tudian Substation in Tongxiang, Jiaxing, the staff carried out the grounding change and replacement operation in an orderly manner, and the processes of wiring, testing, and debugging were interconnected and efficiently promoted.

In response to the pain point that traditional inspections cannot grasp the internal temperature of equipment in real time, the intelligent transformation of wireless temperature measurement in substations is also being carried out simultaneously. The staff installed wireless temperature measurement devices inside the switchgear to accurately cover key points of the equipment, achieving real-time online temperature monitoring and intelligent warning of anomalies, making the operation and maintenance of the substation more "intelligent".

Li Shangxuan, a staff member of State Grid Jiaxing Power Supply Company, said, "Our traditional temperature measurement tools are difficult to detect the temperature of closed contacts and are prone to blind spots in temperature measurement. The newly installed wireless temperature measurement device can collect temperature data in real time and upload it to the background, realizing remote visual monitoring. In case of emergency, it can also issue warnings in the first time, greatly improving the level of intelligent operation and maintenance and emergency response efficiency

State Grid Jiaxing Power Supply Company is seizing the golden period of spring inspection, concentrating efforts to complete the grounding change and replacement work of 8 out of 6 substations in Tongxiang, Jiaxing. The installation and deployment of 36 wireless temperature measurement devices have been completed, achieving full coverage of temperature monitoring for key equipment, and the application scope is continuously expanding to the whole area.

The spring inspection is vigorous and the quality improvement is effective. State Grid Jiaxing Power Supply Company will continue to promote the transformation of substation operation and maintenance mode from "passive repair" to "active warning and precise operation and maintenance", comprehensively improve power supply guarantee capability and service level through digitization, and safeguard the safe and stable operation of the power grid through practical spring inspections.Editor/Yang Meiling