Investigation of Hydrogenerators Vulnerability Regarding Shaft Voltage and Bearing Currents

Published Jul 12th, 2023 IRMC 2023 - Joel Pedneault-Desroches

Why shaft voltage & current is interesting in hydro?

  • They could damage the bearings
    – Unpredicted outage…
  • Source of inadequate maintenance
    – Repetitive outages…
  • Influenced by magnetic perturbations
    – Input for diagnosis…

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