220kV GSP-245EH型断路器非全相动作缺陷的分析和处理

Analysis and Treatment of Open Phase Action Defect of 220kV GSP-245EH Circuit Breaker

针对一起220kV GSP-245EH型断路器非全相动作故障,通过现场检查和缺陷分析,找到了故障原因,并提出了在检修、维护等工作过程中须进行低电压动作特性试验的建议,以快速有效地发现及处理似缺陷,保证电力系统运行的稳定与安全。

In view of an open phase action fault of 220 kV GSP-245 EH circuit breaker,through on-site inspection and defect analysis,the causes of fault are found.It is suggested that the low-voltage action characteristic test should be conducted in the process of overhaul and maintenance,so as to discover and handle the similar defects quickly and effectively,and guarantee the stability and safety of the power system operation.