220kV断路器重合闸异常动作行为分析  

Analysis of abnormal reclosing action of 220kV circuit breaker

作　　者：刘云 LIU Yun(Yunnan Electric Power Technology Co.,Ltd,Kunming 650217)

机构地区：[1]云南电力技术有限责任公司,昆明650217

出　　处：《电气技术》2022年第5期105-108,共4页Electrical Engineering

摘　　要：对某变电站220kV进线重合闸异常动作行为进行研究,分析异常动作原因。针对线路发生单相瞬时性故障时,断路器实际三跳三重的异常情况,在确定保护装置正确动作的前提下,从二次回路和保护之间的配合出发,确认二次回路接线错误和保护之间配合不当是造成本次异常动作的主要原因。最后,针对此类接线方式的重合闸提出相应的整改措施。The abnormal action behavior of 220kV incoming line reclosing in a 220kV substation is studied,and the causes of abnormal action are analyzed.In view of the abnormal situation of single-phase instantaneous fault of the line and the actual triple tripping and triple reclosing of the circuit breaker,under the condition of determining the correct action of the protection device,starting from the cooperation between the secondary circuit and the protection,it is confirmed that the main reasons for this abnormal action are the wrong wiring of the secondary circuit and the improper cooperation between the protection.Finally,the corresponding rectification measures are put forward for the reclosing of this kind of wiring mode.

关 键 词：重合闸 异常动作 二次回路 保护配合 

分 类 号：TM561[电气工程—电器] TM762.2