500kV线路保护装置220V直流电源串入交流电误动跳闸事故分析  

Analysis of False Tripping Accident Caused by Inducing AC into 220V DC Power Source of 500 kV Line Protection Device

作　　者：郭晓春 

机构地区：[1]大同电力高级技工学校,山西大同037039

出　　处：《科技情报开发与经济》2010年第34期217-219,共3页Sci-Tech Information Development & Economy

摘　　要：通过分析500kV变电站引因一次直流系统串入交流电而导致500kV线路保护误动跳闸的原因,为变电站检修、维护的现场施工人员提供了经验教训,从而提高检修、维护施工中的安全管理,以确保检修、维护施工过程中变电站一、二次设备的安全可靠运行。This paper analyzes the reasons of false tripping caused by inputting AC into primary DC system of 500 kV substation,which provides experiences and lessons for on-site constructors to make overhaul and maintenance of the substation so as to improve the safety management in overhaul and maintenance,and ensure the safe and reliable operation of the primary and secondary equipment of the substation during the overhaul and maintenance construction.

关 键 词：500KV线路 MCD-H3纵联电流差动保护 直流系统 串入交流电 

分 类 号：TM63[电气工程—电力系统及自动化]