电压互感器二次回路多点接地的影响及查找措施  

Effects and Detection Measures of Multipoint Grounding in Voltage Transformer Secondary Circuits

作　　者：盛博闻 SHENG Bowen(State Grid Jinshan Power Supply Company,SMEPC,Shanghai 201500,China)

机构地区：[1]国网上海市电力公司金山供电公司,上海201500

出　　处：《电力与能源》2024年第4期439-442,共4页Power & Energy

摘　　要：实际工作过程中会发生由于电压互感器两点接地导致的保护误动问题,这是一种不容易被发现的故障。介绍了由于电压互感器二次回路两点接地引发的故障,分析了电压互感器二次回路多点接地故障的原理,并总结了查找方法,以期为今后工作给予启示并采取相应的防范措施。In practical operations,protection malfunctions have occurred due to grounding at two points in voltage transformers,which is a fault that is not easily detected.This paper introduces faults caused by multipoint grounding in the secondary circuits of voltage transformers,analyzes the principles of PT secondary circuit multipoint grounding faults,and summarizes detection methods.The findings provide insights and preventive measures for futurework.

关 键 词：电压互感器 二次回路 多点接地 保护装置 

分 类 号：TM451.2[电气工程—电器]