PT故障引起定子接地保護(hù)動作的事故處理及分析 

陳熙平，季杰，陳強(qiáng)，王文松，曹鋼 
錦屏水力發(fā)電廠，四川 西昌 615000 
 

摘 要：介紹了電壓互感器（PT）故障引起定子接地保護(hù)動作的事故現(xiàn)象及現(xiàn)場處理過程，給出了保護(hù)裝置動作數(shù)據(jù)及故障錄波波形，并對保護(hù)動作情況進(jìn)行了分析，為今后類似故障的分析及處理提供了參考方法，防止類似事故的發(fā)生。
關(guān)鍵詞：電壓互感器；定子接地保護(hù)；絕緣；分析
中圖分類號：TM77 文獻(xiàn)標(biāo)識碼：B 文章編號：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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