一起±800kV换流站变压器油位异常的故障分析

Fault Analysis of Abnormal Oil Level in a±800kV Converter Station Transformer

本文中作者介绍了某±800kV换流站变压器油位出现异常现象,排查发现该变压器的油色谱在线监测装置输油管道发生穿孔漏油。针对油色谱在线监测装置输油管道穿孔现象,开展了扫描电镜(SEM)、能谱(EDS)、红外光谱(IRS)和离子色谱(IC)等方面的分析,得出了其穿孔的原因,并提出了相应的防范措施。

The oil level of the transformer in a±800kV converter station is abnormal,and the investigation found that the oil pipeline of the oil chromatography online monitoring device of the transformer was perforated,resulting in oil leakage.In this paper,in view of the perforation phenomenon of oil pipeline in the oil chromatography online monitoring device,the analysis of scanning electron microscope(SEM),energy spectrum(EDS),infrared spectroscopy(IRS)and ion chromatography(IC)was carried out,and the reasons for the perforation were obtained.and corresponding preventive measures were put forward.