应用于MOA三次谐波提取的带通滤波器设计  

The Application of Bandpass Filter's Design on the Extraction of MOA Third Harmonic

作　　者：徐璐琪 崔律 岳克[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《电气技术》2016年第5期23-25,共3页Electrical Engineering

摘　　要：本文介绍了目前常用的MOA阻性泄漏电流提取方法。根据DL/T 987—2005标准所推荐避雷器泄漏电流标准波形,设计了窄带通滤波器,实现MOA阻性三次谐波电流的提取。测量结果表明,该电路可实现对MOA泄漏电流的三次谐波滤波,误差接近1%满足工程需要,因此论文设计的滤波电路可用于MOA泄漏电流的提取技术中。This paper introduces the way of extraction of MOA resistive leakage current which is frequently used in these days. The extraction of MOA resistive third harmonic current is achieved by designing the bandpass filter, on the basis of leakage current standard waveform of the surge arrester recommended by the criterion of DL/T 987—2005. It is indicated by the measurement result that this circuit could achieve the filter of third harmonic current of MOA current of MOA leakage current, which meets the engineering requirement with the deviation approaches 1%. Consequently, the filter circuit designed by the paper could apply in the extraction technology of leakage current from the online detection device of arrester.

关 键 词：MOA 阻性电流 三次谐波电流 带通滤波电路 

分 类 号：TM862[电气工程—高电压与绝缘技术] TN713.5[电子电信—电路与系统]