印尼总承包下励磁变压器故障分析

Failure Analyzing for Excitation Transformer in the Oversea Project

在发电站系统中,常因励磁变压器故障,很难满足海外电站高运行小时数的要求。通过研究大型水轮发电机组励磁变压器温升曲线,提出制造厂家一些问题,并采取一定措施,解决了在水轮发电机在高运行小时数情况下,检修和维护励磁变压器的方法。方法简易、方便,并且试验结果有效,对其它海外项目有借鉴意义。

The power station system, often due to excita- tion transformer failure is difficult to meet the requirements of o- verseas-power plant operating hours. By studying the tempera- ture rise curve of excitation transformer on the large hydroelec- tric overseas, this paper submits some of the manufacturering problems, takes certain measures to check ＆ maintain the exci- tation transformer when the hydraulic generator is in the case of the high number of operating hours. The method is simple, con- venient ＆ effective in test result. For other projects overseas, the above mentioned methods can be taken as reference.