Case study of a Power Turbine

  • By Ken Keith
  • one year ago
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A power turbine had been experiencing vibration trips during normal operation. During the event, a one-half (1/2X) vibration component emerged in the spectrum. This usually a good indication of that a light rubbing may have been developed at a seal area. Data analysis helped understand its vibration behavior and locate the rubbing area. The understanding was rather helpful for maintenance and operation teams going forward.