变压器涌流导致差动保护误动的保护动作分析

摘要

针对110kV红旗变电站由于110kV线路保护重合不成功引起的主变差动保护误动，并结合保护录波和现场实际整定定值，对此保护误动情况进行原因分析，对于该类问题提出解决方案和防范措施。%Aiming to main transformer differential protection misoperations caused by unsuccessful 110kV line protection reclosing in 110kV Hongqi substation, combined with protection record and the actual setting valve, the paper analyzes the reason of protection misoperation and also presents the solution and precautionary measure to solve the problem.