Concepts and Framework of Automatic Identification Technology for Secondary Device in Substations

The equipment of power system is mainly divided into primary equipment and secondary equipment. The maintenance technology of primary equipment in substation is more mature than that of secondary equipment, so the identification technology of secondary equipment is more challenging than that of primary equipment. Accurately identifying the operation status of secondary equipment can reduce accidents such as short circuit, arc, poor heat dissipation and equipment failure as much as possible, which is of great significance to the safe and stable operation of the entire power system. This paper summarizes the technical difficulties and research status of automatic identification technology of secondary equipment, some commonly used identification equipment in Yunnan power grid is listed, and the accuracy of each equipment is scored. Finally, five constructive conclusions and prospects for related technical elements are put forward.