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  • Users: Jensgisla
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  1. Jensgisla

    Synchronous generator, peripheral speed

    I'm looking for information on peripheral speed design limits of synchronous generators. More specifically for 50 Hz hydrogenerators with with rated speed 100 - 300 rpm. As far as I understand the design limits of the peripheral speed is determined by mechanical stress (centrifugal forces) on...
  2. Jensgisla

    How old can generator cores get?

    We are at the moment looking at a couple of 14MVA ASEA hydro generators from late 1950's. Both stator windings and rotor poles will be replaced but is it completely ridiculous to consider keeping the cores? Of course given that they turn out ok in flux tests. How old can cores really get? All...

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