摘要
根据10%误差曲线校验电流互感器准确度,只要Zf或m的值不超过此曲线所确定的允许值,电流互感器的误差就在允许范围以内。比较计算值(或测量值)Zf与允许值Zfm,若Zf<Zfm,则可判定电流互感器最大电流误差不超过10%,符合规程要求;反之不符合。
According to the 10% error curve calibration accuracy of current transformer is,as long as the Zf or m value does not exceed the curve determined by the allowable value,error of current transformer in the allowed range.Comparison of calculated value(or measurement) Zf and allowable values of Zfm,if Zf Zfm,can determine the current transformer maximum current error is less than 10%,meet the standard requirement;and do not accord with.
出处
《湖南农机(学术版)》
2012年第5期120-120,122,共2页
Hunnan Agricultural Machinery
关键词
电流互感器
差动保护
距离保护
current transformer
differential protection
distance protection