国外几种特殊电流互感器检定方法的探讨  

Discussion on Test Methods of Several Special Current Transformers of Foreign Countries

作　　者：田勇 

机构地区：[1]山西互感器电测设备有限公司,山西太原030009

出　　处：《机械工程与自动化》2017年第3期130-131,133,共3页Mechanical Engineering & Automation

摘　　要：国外几种特殊电流比电流互感器的额定二次电流分别为1.5 A、2.5 A、10 A,国内目前没有相应的标准器与其进行比较故而无法对其进行检定。针对这一问题,提出了三种检定方法,并对这三种检定方法的优缺点进行比较;在此基础上提出了标准器级联感应分流器的检定方法,该方法只需改变互感器校验仪的工作回路采样器,配合相应工作电流的负荷箱,即可满足误差检定的要求,符合国家规程的规定,解决了国外特殊电流互感器的检定问题。Aiming at several kinds of special current transformers whose secondary currents are 1. 5 A,2. 5 A,10 A respectively,there is no corresponding standard device to test them,this paper puts forward three kinds of test methods,and compares the advantages and disadvantages of the three kinds of test methods. The method of standard device cascade inductive shunt is proposed,by which we only need to change the working circuit sampler of transformer calibrator to meet the requirements of the error test,and it complies with the provisions of the state regulations.

关 键 词：电流互感器 检定 级联 感应分流器 误差 

分 类 号：TM452[电气工程—电器]