基于柔性光学电流互感器的接地选线装置  

Grounding Line Selection Device Based on Flexible Optical Current Transformer

作　　者：石勇[1] 任百群 王耀[1] 李宇琦 刘倪宣 姜磊 SHI Yong;REN Baiqun;WANG Yao;LI Yuqi;LIU Nixuan;JIANG Lei(NR Electric Co.,Ltd.,Nanjing 211102,Jiangsu,China)

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102

出　　处：《四川电力技术》2022年第1期26-29,共4页Sichuan Electric Power Technology

摘　　要：针对现场无法安装常规零序互感器的问题,提出了基于柔性全光学电流互感器的接地选线装置方案。针对当前小电流接地系统单相接地故障特征,形成了基于光学电流互感器的暂态选线方案。该方案已在现场得到应用,运行情况良好。Aiming at the conventional zero-sequence current transformer that can′t be installed in the field,the scheme for grounding line selection device is proposed based on flexible optical current transformer.In view of the current characteristics of single-phase grounding fault in small current grounding system,the transient line selection scheme based on optical current transformer is formed.According to the actual application in the field,the operation condition of the proposed scheme is good.

关 键 词：接地选线 光学电流互感器 暂态法 

分 类 号：TM452[电气工程—电器]