二次小电流法下双级补偿电流互感器电流关系研究  

Study on the Currents of Two-stage Current Transformer under the Small Secondary Current Method

作　　者：屈凯峰[1] 江波[2] 赵伟[1] 吴静[1] 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》2006年第7期23-26,59,共5页Electrical Measurement & Instrumentation

摘　　要：在简介双级补偿大电流互感器和二次小电流校验法的基础上,给出了该电流互感器以二次小电流法测得误差与其真实误差的差别公式;并从理论推导和物理试验两方面证明了,该电流互感器二次绕组电流与补偿绕组电流之间的大小关系,在正常工作状态下与校验状态下并不相同。Introduce the principle of two-stage current transformer and the method of small secondary current, present the difference between the real error of two-stage current transformer and the error measured by the method of small secondary current. It＇s analyzed that the ratio of secondary current to auxiliary current in the condition of working is different from that in the condition of verification. The conclusion is proved correct by the result of test.

关 键 词：双级补偿电流互感器 二次小电流法 校验 误差 

分 类 号：TM452[电气工程—电器]