一起主变差动保护误动作引起的思考

Cause of A Main Transformer Differential Protection Malfunction

通过对辖区变电站一起典型主变压器差动保护误动的故障的判断和处理,结合变压器差动保护动作原理,分析主变差动动作原因,明确差动保护动作相关人员处理程序,并从安装、调试、运行等五个生产环节入手,提出防范措施,进一步提高系统安全运行水平。

Based on the judgement and processing on a typical main transformer differential protection malfunction in a dominion substation,combining with the working principle of transformer differential protection,analyzed the cause of main transformer differential protection action,clarified the working procedure of personnel for differential protection,from installation,commissioning,operation etc.stages,put forward preventive measures,to further improve the system operation safety.