一例中阻抗母差保护故障处理及原因分析  

Dealing with a Breakdown of a Middle Impedance Bus Current Differential Relay

作　　者：黄雪昀 HUANG Xue—yun(Chongqing Nan’Power Supply Bureau,Chongqing 400060)

机构地区：[1]重庆南岸供电局变电所继电保护班,重庆400060

出　　处：《重庆电力高等专科学校学报》2004年第4期12-15,共4页Journal of Chongqing Electric Power College

摘　　要：通过一例对许昌继电器厂PMH-114型中阻抗母线差动保护的故障排除,分析该装置母联切换回路的动作原理,提出正确的故障查找、分析方法。同时也警醒继电保护人员,对中阻抗母差保护校验应特别注意,以避免类似故障。This article by clearing the break-down of the relay,analyses the acting principle of the Subsection breaker of the PMH-114 middle impedance bus current differential relay made in Xu-chang Relay Factory and also suggests reasonable break-down searching and analysing methods.Meanwhile,the relay protection personnel are warned to pay more attention to protect and examine the middle impedance bus current differential relayat times to avoid the like trouble.

关 键 词：母差 中阻抗 PMH-114 绝缘 击穿 

分 类 号：TM774[电气工程—电力系统及自动化]