一种分布式直流绝缘检测装置的研究  

Research on a distributed DC insulation monitoring device

作　　者：钱君霞[1] 尹斌[1] 

机构地区：[1]河海大学电气工程学院,江苏南京210098

出　　处：《绝缘材料》2004年第5期35-37,共3页Insulating Materials

摘　　要：针对直流系统绝缘降低可能引起许多误动作,研究了一种用80C196KC单片机开发的分布式直流绝缘检测装置,可巡检256个监测点。其主绝缘模块利用不平衡电桥法检测总的绝缘电阻,当发生绝缘降低时,主模块利用软件串行口通过传感器采集各个分模块的绝缘情况,同时通过上位监控机LCD显示单个回路的绝缘情况。Since insulation dropping of DC system may cause many error actions,this article inˉtroduces a distributed DC insulation-monitoring device,which may monitor256insulation branch circuits.Its main insulation module adopts unbalanced electric bridge to monitor the total insuˉlation resistance,when insulation dropping occurs,the main module will use software serial port to communicate with each subordinate module to get insulation data,and meanwhile display the data of each circuit on LCD.

关 键 词：绝缘降低 分布式 不平衡电桥法 软件串行口 

分 类 号：TM934.12[电气工程—电力电子与电力传动]