铁心开气隙电流互感器原理表述新探  

New study on the principle of air gapped core current transformer

作　　者：杨鹏[1] 赵伟[1] 黄松岭[1] 江波[2] 张皓[1] 

机构地区：[1]清华大学电机系电力系统国家重点实验室,北京100084 [2]四川电力试验研究院,成都610072

出　　处：《电测与仪表》2007年第10期44-47,共4页Electrical Measurement & Instrumentation

摘　　要：构建了铁心开气隙电流互感器的等值电路模型,使铁心开气隙电流互感器与连续铁心电流互感器的等效电路模型和相应的特性关系表示式从形式上均统一了起来。定义了气隙常数,应用它,可较全面且直观地展示铁心上开气隙对电流互感器性能的影响。The electric circuit model of air gapped core current transformer and the one of continuous core current transformer were unified by new expression. The air-gap constant was defined, which was used in the analysis of current transformer to display the influence of the air gap on the performance of current transformer.

关 键 词：暂态保护 电流互感器 气隙 气隙常数 

分 类 号：TM452[电气工程—电器]