一起主变压器高压绕组损坏事故检测与分析

Detection and Analysis on HV Winding Damage of A Main Transformer

摘要:

对一起线路短路故障导致主变压器高压绕组损坏事故进行了分析。通过油化试验和高压电气试验，初步确定烧蚀部位位于主变压器高压侧C相主绕组靠下部位，并通过吊罩检查得以验证。

Abstract:

A case of HV winding damage of main transformer caused by shortcircuit fault of transmission line is analyzed. Through the oil test and electric test, it is demonstrated that the damaged area is located in the lower part of main winding of phase C in high voltage side of main transformer, and it is confirmed through the overhaul of transformer cover.