220 kV变电站211桥避雷器C相异物短路故障分析

Analysis on Short Circuit Fault of Phase C of 211 Bridge Arrester in 220 kV Substation

针对某220kV变电站故障进行实地调查,了解当地天气、设备信息、设备运行状况,调取部分试验数据,分析主变差动跳闸原因,采取措施对故障点进行检修,并剖析存在的现象,采取积极有效的防范措施,避免此类事件再次发生。

By invoking local weather, equipment information, equipment operation status, and some experimental data, this paper investigates the faults of a 220 kV substation. The cause of differential tripping fault of the main transformer is analyzed. Measures are taken to repair the fault points. The existing phenomena are deeply analyzed, and positive and effective preventive measures are taken to avoid such incidents happening again.