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针对新丰江水电厂#2机组增容改造完成后存在的振动摆度严重超标、轴线曲折及运行过程中某一方向上导轴承瓦温高等设备故障及缺陷,分析了其产生的原因,并根据现场动平衡试验结果,经配重后有效平衡了机组轴系存在的机械及电磁不平衡力,同时通过针对性的检修解决了机组轴系安装中存在的问题,大大提高了机组的运行稳定性,保证了机组的长期安全运行。
In view of the serious flaw in the swing of # 2 unit of Xinfengjiang Hydropower Plant after completion of capacity expansion and transformation, the axis twists and turns and the fault of the equipment with high bearing temperature in the bearing during operation, the reasons for its occurrence are analyzed. According to the scene The results of dynamic balancing test balance the mechanical and electromagnetic imbalance forces of the shaft of the generator effectively after the counterweight, and solve the problems existing in the installation of the shaft of the generator through the overhaul, which greatly improves the operation stability of the generator set, Ensure the unit’s long-term safe operation.