摘要
针对电流互感器二次回路故障,采用六角图原理,分析了不同故障类型的特征量。选取三相电压和三相电流之间夹角的变化量为特征,归纳整理了47种电流互感器二次错接线。研究表明,不同电流互感器的二次回路故障,具有唯一的故障特征量,可以为自动测试提供诊断依据。
For the secondary circuit fault of current transformers,this paper uses the principle of hexagonal diagram to analyze the characteristic quantities of different fault types,and then the paper selects as the feature the variable quantity of included angle between three-phase voltage and three-phase current to summarize and sort out 47 kinds of current transformers with secondary faulty wiring.The study shows that the secondary circuit faults of different current transformers have unique fault characteristic quantity,which can provide diagnostic basis for automatic test.
作者
彭梦飞
王斌
宋池
PENG Mengfei;WANG Bin;SONG Chi(State Grid Jingzhou Power Supply Company,Jingzhou Hubei 434000,China)
出处
《湖北电力》
2020年第3期75-79,共5页
Hubei Electric Power
基金
国网湖北省电力有限公司科技项目(项目编号:5215J017007)。
关键词
电流互感器
二次回路
六角图
故障特征
CT wiring
secondary circuit
hexagonal diagram
fault features
