某220kV线路故障引起的母差动作事故分析

在变电站的运行过程中,母线的差动保护尤为重要,一次误动都会使一条母线失电,造成变电站停电,对电网稳定运行带来了隐患。本文针对某220kV线路的一次故障使得一条母线停电的原因进行了认真地分析,找出故障的的动作原因,并提出了相应的解决措施。

Analysis of Failure Busbar Differential Protecttion of A 220kV Line

The bus bar differential protection is to importantly in the transformer substation, one miss move will cause a bus bar and to the substation lose the electricity, caused the steady operation to the electrical network to bring the hidden danger. This article caused a bus bar power cut in view of a some 220kV line breakdown the reason to carry on the earnest analysis, the paper discovered the movement reason of breakdown and proposed the corresponding measures.