摘要
本文针对一起主变保护出口矩阵设置错误导致保护误动的案例进行分析。首先阐述故障现象及检查分析过程,然后结合出口矩阵的设计定义,对应继电器的接线分析及控制回路原理,确定出口矩阵整定错误为保护误动主要原因,最后提出相应的改进措施及建议。
In this paper,an event of maloperation caused by wrong setting of exit matrix is analysed.The fault phenomenon and the analysis process are expounded.Combined with the design definition of exit matrix,the corresponding relay connection and control circuit principle,it is concluded that the main cause of this accident is the wrong setting of export matrix.Finally,corresponding improvement measures and suggestions are put forward.
作者
娄玲娇
侯永春
LOU Lingjiao;HOU Yongchun(Maintenance Branch of State Grid Jiangsu Electric Power Co.,Ltd,Nanjing 211100)
出处
《电气技术》
2021年第11期47-50,共4页
Electrical Engineering
关键词
出口矩阵
继电器接线
控制回路
整定
exit matrix
relay connection
control circuit
setting
