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  • Users: Jari T
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  1. Jari T

    24 MVA 125 rpm Hydro unit - Stator vibration at 104,2 Hz - why?

    Hi. I measured a bit strange stator vibrations at one hydro power unit. It is a 125 rpm vertical Francis turbine (~24 m head) directly connected to the generator. There were totally four accelerometers installed radially at the stator frame and all measurement locations indicated similar...

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