PT故障引起定子接地保护动作的事故处理及分析
陈熙平,季杰,陈强,王文松,曹钢
锦屏水力发电厂,四川 西昌 615000
摘 要:介绍了电压互感器(PT)故障引起定子接地保护动作的事故现象及现场处理过程,给出了保护装置动作数据及故障录波波形,并对保护动作情况进行了分析,为今后类似故障的分析及处理提供了参考方法,防止类似事故的发生。
关键词:电压互感器;定子接地保护;绝缘;分析
中图分类号:TM77 文献标识码:B 文章编号:1007-3175(2013)10-0034-03
Accident Settlement and Analysis of Stator Grounding Protection Action Caused by Voltage Transformer Fault
CHEN Xi-ping, JI Jie, CHEN Qiang, WANG Wen-song, CAO Gang
Jinping Hydropower Station, Xichang 615000, China
Abstract: Introduction was made to the accident phenomenon and onsite settlement process of stator grounding protection action caused by voltage transformer fault. This paper gave protection device action data and fault recorded waveforms, and analyzed the protection action situation, which provided reference methods for similar fault analysis and settlement late, preventing similar accidents from taking place.
Key words: voltage transformer; stator grounding protection; insulation; analysis
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