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一起主变间隙零流保护误动的原因分析及防范措施
引用本文:田志瑞,崔秀梅,李文斌. 一起主变间隙零流保护误动的原因分析及防范措施[J]. 科学之友, 2011, 0(20)
作者姓名:田志瑞  崔秀梅  李文斌
作者单位:晋城供电分公司;
摘    要:
文章分析了地区电网由于雷击造成的线路瞬时性接地故障,从而导致变电站主变间隙零流保护因与线路保护配合不当造成跳闸,致使全站失压的事故原因,参考相关规程文献,指出其存在的问题,并提出相应的解决办法。

关 键 词:主变  间隙零流保护  误动  原因分析  防范措施  

Gap with the Main Ttransformer of the Zero-current Protection Malfunction Cause Analysis and Preventive Measures
Tian Zhirui,Cui Xiumei,Li Wenbin. Gap with the Main Ttransformer of the Zero-current Protection Malfunction Cause Analysis and Preventive Measures[J]. Friend of Science Amateurs, 2011, 0(20)
Authors:Tian Zhirui  Cui Xiumei  Li Wenbin
Affiliation:Tian Zhirui,Cui Xiumei,Li Wenbin
Abstract:
This paper introduces a single-phase grounding breakdown caused by a lightning that occurs in the Jincheng Grid,which led to the wrong action of the line end main transformer zero-current protection,resulting in loss of pressure of the whole station,the reference literature related procedures,that its existence problems and propose appropriate solutions.
Keywords:transformer  gap zero-current protection  malfunction  reason analysis  preventive measures  
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