【摘要】 介绍一种用于电力系统的数字式过电压在线监测仪，采用单片机控制技术实现实时、准确、完整地捕捉和记录过电压参数及工作原理和信号处理过程，特别介绍了采用视频Ａ／Ｄ芯片采样方式，效果好且成本低更多还原

【Abstract】 This paper introduces a new overvoltage detector of electric power system by microprocessor It can catch and record overvoltage signal Here also tell the ways of signal processing and show the advantage of the visual frequecy A/D chips更多还原