变电站测控系统开关异常动作分析与对策  

Analysis and Countermeasures of Abnormal Switch Action in Substation Test and Control System

作　　者：沙澎 SHA Peng(Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan,Hebei 063000,China)

机构地区：[1]首钢京唐钢铁联合有限责任公司,河北唐山063000

出　　处：《冶金动力》2020年第10期8-10,共3页Metallurgical Power

摘　　要：通过一起变电站测控系统交流电源异常动作事件,从开关选型、系统架构、负荷统计分析、保护功能及动作原理等多角度综合分析,得出异常动作原因,并提出改进措施和工程实用性建议。Based on an AC power supply abnormal action event of substation test and control system,the causes of the abnormal action were obtained through comprehensive anal⁃ysis from switch selection,system architecture,load statistical analysis,protection function and operation principle,and improvement measures and practical suggestions are put forward.

关 键 词：剩余电流保护器 三相五线制 周期持续率 分流 泄漏电流 

分 类 号：TM588[电气工程—电器]