Huadian Technology ›› 2012, Vol. 34 ›› Issue (5): 26-27.

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Analysis on reason of abnormal tripping caused by fault of adjacent 10kV transmission line

YIN Xingguang1, WAN Yujian1, ZHANG Xinzhou1, GUO Fengqi2   

  1. 1.Huizhou Power Supply Bureau of Guangdong Power Grid Corporation, Huizhou 516001, China; 2.XJ Electric Company Limited, Xuchang 461000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-05-25 Published:2012-05-25

Abstract: Due to the fault of adjacent line, the 10kV line F12 was tripped abnormally many times. The abnormal tripping was analyzed; the main reason of the abnormal tripping was found; the solution was proposed; and the suggestion for preventing similar accidents was given.

Key words: adjacent line, abnormal tripping, single-phase earthing, healthy phase, insulation strength decrease