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| Analysis of maloperation caused by wrong setting of exit matrix |
| LOU Lingjiao, HOU Yongchun |
| Maintenance Branch of State Grid Jiangsu Electric Power Co., Ltd, Nanjing 211100 |
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Abstract 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.
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Received: 21 May 2021
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2021, Vol. 22 
