Analysis of Operation and Maintenance about Backup Automatic Switching in Substation

Backup automatic switching device is widely used in the power grid and plays an important role in ensuring the reliable supply of power. Starting from the principle, the basic requirements, operating modes and blocking conditions of the backup automatic switching device are analyzed in this article. Combining with an abnormal action event of the backup automatic switching, the action conditions of the backup automatic switching are deeply discussed. The precautions in the operation and maintenance of the backup automatic device are Summarized.