PT故障引起定子接地保護動作的事故處理及分析
陳熙平，季杰，陳強，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動作的事故現(xiàn)象及現(xiàn)場處理過程，給出了保護裝置動作數(shù)據(jù)及故障錄波波形，并對保護動作情況進行了分析，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；絕緣；分析
中圖分類號：TM77 文獻標識碼：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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