【摘要】 系统运行中有许多原因会造成非全相运行。通过一起非全相运行再故障保护行为的分析,对南瑞继保的LFP901保护的动作逻辑进行了细致的分析。针对非全相再故障时刻保护的动作逻辑是否符合保护设计要求,以及保护动作后运行人员的现场处理进行了总结。更多还原

【Abstract】 In power system many reason can cause the open-phase running.With the investigation and analysis of a open-fault,this paper explains the action of LFP901 relaying protection and the course of sending permissive signal,especially the operation logic could or not to meet the design requirements.Moreover,what the operators should do when the protective relay active is summarized in this paper.更多还原