一起10kV断路器故障引起110kV主变越级跳闸事件分析

Analysis of a 110 kV Main Transformer Overstepping Trip Event Caused by a 10 kV Circuit Breaker Failure

随着社会的快速发展,人们对用电可靠性的要求也日益增高,而输配电线路故障引起的相关问题逐渐增多.本文对一起10 kV线路断路器慢分引起的110 kV主变低后备保护越级跳闸事件展开分析,并对此类设备的维护提出意见,以避免类似事件的再次发生.

With the rapid development of society,the requirements for power reliability have become increasingly high.Related problems caused by line failures are increasing.Based on this,an analysis was performed on a 110 kV main transformer low backup protection overstepping trip caused by the slow division of a 10 kV line circuit breaker,and suggestions were made for the maintenance of such equipment to avoid similar events from happening again.