出口矩阵设置错误导致保护误动分析  

Analysis of maloperation caused by wrong setting of exit matrix

作　　者：娄玲娇 侯永春 LOU Lingjiao;HOU Yongchun(Maintenance Branch of State Grid Jiangsu Electric Power Co.,Ltd,Nanjing 211100)

机构地区：[1]国网江苏省电力有限公司检修分公司,南京211100

出　　处：《电气技术》2021年第11期47-50,共4页Electrical Engineering

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.

关 键 词：出口矩阵 继电器接线 控制回路 整定 

分 类 号：TM774[电气工程—电力系统及自动化]