高精度微磁通电流互感器的研究  

Study on High-accuracy Current Transformer with Micro Flux

作　　者：李春来[1] 汤晓宇[2] 黄业安[1] 

机构地区：[1]河源职业技术学院电子与信息工程系,广东河源517000 [2]广东雅达电子股份有限公司,广东河源517000

出　　处：《电测与仪表》2010年第11期51-54,共4页Electrical Measurement & Instrumentation

基　　金：工业攻关高新技术产业化基金项目(2010B010900011)

摘　　要：研发高精度微型电流互感器是目前电力仪器仪表行业共同关注的课题。本项目采用微磁通原理,无源补偿误差方式,双铁芯双绕组结构制造高精度微型电流互感器;在误差允许的范围采用微磁通有利于简化结构;本项目设计的CT系列微型电流互感器通过测试,测量精度达到0.02级。Developing a high-accuracy and low current transformer（CT） is the common concern of electric instruments industry at the moment.In this project,a high-accuracy and low current transformer with double-core and double winding structure is desigened based on the principle of micro flux and the method of passive compensation errors.It is advantageous to simplify the structure by using the principle of micro flux in the range of allowable errors.The CT series micro current transformer which is designed in this project have passed the test,and the precision is up to 0.02%.

关 键 词：电流互感器 高精度 微磁通 双铁芯 无源补偿 

分 类 号：TM452[电气工程—电器]