摘要
大峡水电站 1号机组和 2号机组投产初期发电机振动很大 ,特别是上导摆度严重超标 ,威胁着机组的安全稳定运行。针对该问题 ,对机组的设计结构、制造及安装过程进行分析 ,通过稳定性试验 ,找出了问题产生的原因 ,采取调整轴线、轴位 ,调整上导瓦间隙 ,加配重等措施 ,消除了振动偏大的根源 。
The hydrogenerator vibrated greatly in the early stage of commissioning at Daxia Hydropower Station, Unit 1, 2, especially the serious over-standard upper throw threatened the safe and stable operation of unit. The reasons are found out through the stability test and the analysis of design structure, manufacture and erection. The adjustment of axis, axial position, upper bush clearance, and addition of balance clear up the origin of great vibration. And stability of unit is improved considerably.
出处
《西北电力技术》
2000年第5期41-43,共3页
Northwest China Electric Power
