摘要
为消除感应电压对输电线路工频参数测试数据的影响，常提高试验电压以提高信噪比，但测量零序阻抗和正序阻抗时感应电压的干扰十分严重，采用移相倒相法测量零序阻抗，用移相法测量正序阻抗，并应用推导出的实用消除干扰计算公式则能满足现场实测要求。
This paper introduces the characteristics of theinterference when power-frequency parameters of transmission line are measured.In order to eliminate the affect of interference, a new effective method of measuring positive-sequence impedanee and zero-seqenee impedance in interference environment has been proposed' This paper also givesout the theory analysis and the calculation formula' At thelast the exoeriment results in the field are given.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1999年第2期82-84,91,共4页
High Voltage Engineering
关键词
输电线路
工频参数
抗干扰测量
transmission line power--frequency parameteranti-interference measurement
