剩磁对测量用电流互感器的影响  

Effect of Residual Magnetic Field on Current Transformer for Measurement

作　　者：李海荣 何东莹 马金才 彭平 雷岩团哏 LI Hairong;HE Dongying;MA Jincai;PENG Ping;LEI Yantuangen(Diqing power supply bureau,Yunnan Power Grid co.,LTD. Yunnan Diqing 674400;Lincang power supply bureau,Yunnan Power Grid co.,LTD. Yunnan LinCang 677000;Xundian power supply co.,LTD.,Yunnan Xundian 655200;Jianshui power supply co.,LTD. YunnanJianshui 654300;Dehong power supply bureau,Yunnan Power Grid co.,LTD.,YunnanMangshi 678400)

机构地区：[1]云南电网有限责任公司迪庆供电局,云南迪庆674400 [2]云南电网有限责任公司临沧供电局,云南临沧677000 [3]寻甸供电有限公司,云南寻甸655200 [4]建水供电有限公司,云南建水654300 [5]云南电网有限责任公司德宏供电局,云南芒市678400

出　　处：《云南电力技术》2019年第3期54-56,共3页Yunnan Electric Power

摘　　要：电流互感器是电力系统中不可或缺的电气设备,其性能直接影响继电保护、电能计量和远程监控能否稳定可靠运行。本文通过阐述电流互感器剩磁产生的原因,从理论上分析了剩磁对测量用电流互感器运行的影响。最后提出了减小或消除电流互感器剩磁的可行措施。The current transformer is widely used in power system,and its stable and reliable performance directly affects relay protection,power metering and remote monitoring.In this paper,the reason of residual magnetic field of current transformer is explained,and the theoretical analysis of residual magnetic effect on current transformer for measurement is provided.Finally,the feasible measures to reduce or elIminate the remanence of current transformers are proposed.

关 键 词：电流互感器 剩磁 励磁特性 

分 类 号：TM74[电气工程—电力系统及自动化]