预防变压器短路冲击损坏事故的一种措施

Measures for Protecting Transformer from Short-Circuit Faults

近年来,因外部短路冲击造成110 kV及以上变压器损坏的事故时有发生,文章对变压器受外部短路冲击损坏的原因进行分析,提出通过改变变电站内母线运行方式降低短路电流,并提供了运行实例,为生产管理中变压器的运行维护提供思路。

In recent years,external short circuit impact is the main cause of 110 kV and above transformer damage accidents. This paper analyzed the causes of transformer external short circuit impact damage, introduced the measure to reduce the short-circuit current through change of bus-bar operation way in the transformer substation, and provid-ed a practical example at the end of this paper. It can provide good ideas for transformer operation and maintenance in the production management.