变压器冲击合闸时GCB外壳放电现象分析

GCB Crust Discharge Analysis during Transformer Surge Closing

对三峡电厂连接发电机断路器(GCB)主变进行冲击合闸过程中,出现的GCB外壳对支架异常放电现象进行了分析研究,并提出了改进方案。

This article analyzed and studied the GCB（generator circuit- breaker） abnormal crust discharge phenomena, from its casing to support, during the course of surge closing of Three Gorges power plant transformers connected with GCB, and put forward the improvement scheme.