一起220kV主变压器有载分接开关内部放电案例分析

A case Analysis of Internal Discharge of On-load Tap-changer in 220 kV Main Transformer

详细分析了一起220 kV主变压器有载分接开关内部放电案例。通过对故障有载分接开关一二次的故障表和解体试验分析,结合有载分接开关动作原理,准确查找出内部放电的原因。

A case of on-load tap-changer internal discharge in 220 kV main transformer is analyzed in detail.By analyzing the primary and secondary fault table and disassembly test of the on-load tap-changer,and combining with the operation principle of the on-load tap-changer,the cause of internal discharge is found out accurately.