摘要
目前电流互感器误差校验的方法有很多种,按原理上主要分一次法(大电流法)和二次法(低压外推法),本文通过对比研究后发现由于测试原理不同导致结果存在一定偏差,不同测试方法亦有不同的的优劣差异,通过在广东佛山220 kV后龙变电站10 kV高压室铠装高压柜柜内电流互感器交接试验中的计量校验中所遇到的误差超标情况来阐述不同测试方法在最终测试结果中的影响。
There are many error checking methods in current mutual inductor.According to the mechanism,primary-side measurement(heavy current measurement) and secondary-side measurement(low-voltage extrapolation) are currently the prevalent methods.This paper illustrates the inaccurate consequences due to the different measurement principles under the comparative study.Different measurements have their inborn advantages and disadvantages.This paper elaborates the impacts caused by the different measurements which are ...
出处
《电力技术》
2010年第8期73-75,共3页
Electric Power Standarization & Construction Cost Control Information
关键词
一次法(大电流法)
二次法(低压外推法)
误差校验
电流互感器
primary-side measurement（heavy current measurement）
secondary-side measurement（low-voltage extrapolation）
error checking
current mutual inductor
