Analysis of Arc Suppression Coil Accident in Fushun Zhongzhai 66kV Substation

Through the analysis of 66kV arc suppression coil smoke accident in Fushun Zhong Zhai 220kV substation,scientifically pointed out that the accident was due to leave hidden trouble in the process of design and manufacture of cause.This paper introduces the working principle of arc suppression coil and use value, and cites several reasons can cause arc suppression coil accidents.This paper introduces in detail the whole process of hoisting core checks after the accident in Liao Ning Yongtai Transformer Manufacturing Co., Ltd,and carefully check the chromatography test data and the operation report before and after the accident, proveing the results of the analysis of the accident is correct.