陈丹,傅中君,柳益君,白凤娥,赵小荣.一种氧化锌避雷器阻性电流的提取方法[J].电测与仪表,2019,56(13):117-122. Chen Dan,Fu Zhongjun,Liu Yijun,Bai Fenge,Zhao Xiaorong.An method for the resistive current extraction of metal oxide surge arresters[J].Electrical Measurement & Instrumentation,2019,56(13):117-122.
一种氧化锌避雷器阻性电流的提取方法
An method for the resistive current extraction of metal oxide surge arresters
As a core protection device for power transmission system, metal oxide surge arresters must be monitored online. On the basis of studying the on-line monitoring methods commonly used in metal oxide surge arresters, this paper proposes a novel resistive current extraction method of metal oxide surge arresters based on harmonic analysis. The method employs the quasi-synchronous DFT harmonic analysis linear correction algorithm to measure the resistive current of metal oxide surge arresters. The simulation experiment and on-site experiment show that this method is feasible, effective and has high application value.
