标准电流互感器大电流检定方法

Verification method of High Current for Standard Current Transformer

按照传统检定方法检定标准电流互感器时,由于受实验室设备条件限制等,很难将大电流(2 000 A及以上电流值)升至满负荷,使得测量结果不能准确反映标准电流互感器在满负荷时的实际误差,满足不了标准电流互感器检定规程的要求。经过改进后,将新检定方法得到的误差数据和曲线图分别与传统方法进行比较分析,结果满足JJG 313—2010《测量用电流互感器》检定规程的误差要求。

The traditional verification methods can＇ t reflect the actual error at full load for standard current transformer, not meet the requirement of verification regulation of standard current transformer. By comparing the obtained error data and graph of the new method and the traditional method, the new method can meet the error requirement of verification regulation （ JJG 313 -2010）.