无明显故障点母线事故的处理及分析

Treatment and Analysis on Busbar Fault without Obvious Fault Spot

以一起无明显故障点的母线故障为例,着重讨论了该类事故中故障点的可能分布及判断方法、送电方案的选择、送电过程中对母差保护的影响,提出了该类事故的最佳送电方案,指出事故处理中应结合故障现象及保护动作情况准确判断故障点,按照主次分明、快速稳妥的原则,选取最佳送电方案。

aking a busbar fault without obvious fault spot as an example, this paper discusses the treatment of this type of busbar fault with emphasis on possible fault spot distribution,judgement method,delivery program chosen and influence on busbar differential protection during delivery,and suggests the best treatment plan,proposes that the fault spot should be ascertained accurately with fault phenomenon and information of relay protection dispatcher during fault treatment,and the best treatment plan is selected according to the clear primary and secondary,and fast and reliable principles.