基于电流互感器负荷误差外推法的校验技术研究

Research on calibration technology of current transformer based on load error extrapolation

针对电流互感器测试问题,文章对传统的比较测差法进行对比,提出了负荷误差外推法,电流互感器负荷误差外推法是将被检测的电流互感器与标准电流互感器在小电流的条件下进行误差测量比较,测得误差。文章阐述了电流互感器负荷误差外推法原理、误差测试的过程以及与传统比较法对比负荷误差外推法的优势。

Aiming at the problems of current transformer test, this paper compared the traditional differential comparison method, put forward the load error extrapolation method, which is comparing the current transformer detected with standard electric current transformer under the condition of small current, to get the error measurement. This paper expounds the current transformer load extrapolation error principle, process of error test and load extrapolation error advantages over traditional comparison method.