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- W4377019112 abstract "Abstract When a hydropower station 25MW hydropower unit is operated with load after overhaul, the upper bracket vibration will exceed the standard. To find out the cause of the problem and eliminate the fault, the mechanical, electromagnetic, and hydraulic aspects are mainly analyzed and checked. The results show that the excessive vibration of the upper bracket of the unit is caused by the incomplete pre-tightening force between the coupling bolts of the turbine and generator of the unit, as well as the improper location and thickness of the padding. It is characterized by a vibration component whose frequency is between the rotational frequency and twice the rotational frequency. By fully pre-tightening the coupling bolts and restoring the original padding position and thickness, the vibration of the upper bracket, upper guide swing, and other data are significantly improved, and the desired purpose is achieved. The cause analysis and fault treatment of the abnormal vibration of the hydro-generator unit can provide some reference for diagnosing other similar faults." @default.
- W4377019112 created "2023-05-19" @default.
- W4377019112 creator A5079708328 @default.
- W4377019112 date "2023-05-01" @default.
- W4377019112 modified "2023-10-14" @default.
- W4377019112 title "Cause Analysis and Treatment of Abnormal Vibration of Hydraulic Generator Unit Caused by Coupling Defect" @default.
- W4377019112 doi "https://doi.org/10.1088/1742-6596/2503/1/012043" @default.
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