零序电流互感器安装工艺引起的保护拒动分析  

The Analysis of Theimmovability of Protective Devices due to the Installation Technology of Zero-sequence Current Transformer

作　　者：单国栋[1] 

机构地区：[1]广西电网公司柳州供电局,广西柳州545000

出　　处：《电气技术》2017年第9期85-88,共4页Electrical Engineering

摘　　要：本文结合一起10kV线路因零序电流互感器安装工艺引起越级跳闸事故,详细分析了零序电流互感器在不合格安装下的电流传变特性以及其对电力系统微机保护装置的影响,并结合此次事故情况提出了此种情况的应对措施。Connecting with an over-grade trip accident of 10 kV line due to the installation technology of zero-sequence current transformer, this paper analyses the characteristics of current transfer and the influence to the microcomputer protection devices under the situations of unqualified installation of zero-sequence current transformer, combined with the accident situation such measures are put forward.

关 键 词：电流互感器 安装工艺 越级跳闸 故障分析 

分 类 号：TM452[电气工程—电器]