变电站二次回路接地不良引起的异常分析

Abnormal Analysis of Secondary Loop Earthing in Transformer Substation

本文针对几起在日常工作中遇到的因二次回路接地不良引起的异常进行分析,分析了二次接地不良产生的原因、表现形式以及对正常运行的影响。通过对其产生的原因及查找处理的方法的探讨,为值班人员对基于此类较隐蔽异常的分析查找提供了一个思路。

Through the analysis of several cases caused by abnormal secondary loop earthing in daily work, the paper explains the causes of the abnormal secondary loop earthing, manifestation and its influ ence on normal operation, and gives the method of how to find and cope with the abnormal secondary loop earthing. In this article a thinking - way for transformer substation operators to analyse and search for such kind of unobvious disorder and abnormality is provided.