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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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About Iris Power

Iris Power, founded in 1990, offers sensors, monitors and diagnostic solutions for the assessment of the actual state of generators, motors, dry-type transformers and air-insulated switchgear, so that the risk assessed and the necessary maintenance can be planned. In 2010 Iris Power LP was acquired by Qualitrol Corporation, a global leader for condition-based monitoring.

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