【摘要】 介绍了以计算机为核心的绝缘在线监测系统的程控多路选通装置的基本原理、设计方法、试验结果和实际应用实例。该装置与计算机并行通讯,由计算机发出程序控制信号来选通所需要的任何输入通道,可实现256路信号选4路的功能,能够满足大中型变电站中对所有高压电气设备的绝缘状况进行在线巡回监测的需要。这种多路选通装置还可应用于其他多信号的巡回监测系统中。更多还原

【Abstract】 The programmable multi-p lexer channel selector is an important part of computer-aided system for on-line insulation monitoring of HV apparatus.The principle,the design method and the t est results for this selector are proposed in this paper.This device communicate s with computer by parallel port,enabling any4input channels with the signal con trolled by the computer from256input signals.It can meet the requirement for on-line insulation monitoring in large or medium-size substation.Meanwhile,the devi ce can also be applied in other circulating detection system which has many inpu t signals.更多还原