“8.12”500kV福泉变500kVⅠ、Ⅱ母线失压保护动作分析

Analysis of relay protection on 500 kV busbar no-voltage in 500 kV Fuquan substation

介绍了8月12日福泉变500kVⅠ、Ⅱ母两套母线失灵保护因一次小干扰而造成误动的过程,分析了母线失灵保护误动过程中的动作行为,并根据误动原因提出了相关反措,为防止今后再出现类似的事故提供了经验。

This paper introduces a wrong action of 500kV busbar protection because of a interference in 500kV Fuquan substation on August 12. It analyses the wrong operation of busbar protection in the process, and according to the event reasons, puts forward the measures to prevent any further similar accident.