一起500kV变压器故障原因分析及预防措施

Cause Analysis and Countermeasures on Some 500kV Transformer Accident

介绍一起500 kV变压器高压绕组对铁心贯穿性放电故障,认为引起故障的主要原因为变压器绕组抗短路能力差,由此提出在运行维护中的预防措施。

This paper introduces the fault of 500 kV transformer high voltage winding transfixion discharging on iron, considers that the main cause is bad anti-short circuit capability of transformer, and advances the prevention countermeasures in operation and maintenance of transformer.