中压配电系统设计中保护用电流互感器的选用  

Selection of Protection Current Transformer in the Design of Medium Voltage Distribution System

作　　者：秦飞飞 王栩颜 QIN Fei-fei;WANG Xu-yan(Luoyang Ruize Petrochemical Engineering Co.,Ltd.,Luoyang 471000,China)

机构地区：[1]洛阳瑞泽石化工程有限公司,河南洛阳471000

出　　处：《通信电源技术》2020年第5期115-116,共2页Telecom Power Technology

摘　　要：保护用电流互感器是电力系统继电保护正确动作的重要电流变换一次元件。保护用电流互感器额定参数、准确级及准确限值系数、动稳定性、热稳定性等参数的选择和校验,对电流互感器能否在配电系统中正常运行并防止故障范围进一步扩大至关重要。Current transformer for protection is an important primary current conversion element for correct operation of relay protection in power system.Rated parameters of current transformer for protection,Accuracy level and accuracy limit coefficient,Dynamic stability,The selection and verification of parameters such as thermal stability are crucial to the normal operation of current transformers in power distribution systems and to prevent further expansion of fault range.

关 键 词：保护用电流互感器 继电保护 额定参数 选择 校验 

分 类 号：TM452[电气工程—电器]