600MW发电机组励磁变故障分析

Fault Analysis of Excitation Transformer of 600MW Generator Set

针对600MW发电机组励磁变差动故障的过程,对现场检查结果进行了分析,并综合各保护装置和故障录波仪的数据图表进行协同研究,准确地推断出故障点。根据故障原因进行有针对性的改进,避免类似大型干式变压器再次发生故障。

In view of the differential faults of the excitation transformer of 600MW generator set, in this paper the on-site inspection results are analyzed. Then according to the collaborative study of the data charts of the protective devices and the fault recorder, the fault point is inferred accurately. According to the cause of the fault, a targeted improvement is made to avoid the faults of similar large dry-type transformes.