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Rotor Straightening and High Speed Balance | Energy Central
This piece was originally shared with the Generation Professionals community group. Thought it would be of interest to share here as well.
Rotor Straightening and High Speed Balance | Energy Central
Mechanical Dynamics and Analysis (MD&A) inspected and repaired an A-10 High Pressure steam turbine rotor. The referenced machine is a 3600 rpm, 90 MW combined cycle unit. MD&A’s Turbine-Generator Repair Facility performed the incoming inspections / evaluations, repair straightening of the rotor, final inspections, and high speed balance.
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Fascinating, Jay. Tremendous accuracy and balance are obviously required to manufacture a massive assembly that spins at 3600 RPM for days or weeks at a time.
What's the weight of a typical rotor? I take it most rotors are reconditioned rather than replaced?
Some engineering porn below (rotor replacement at Diablo Canyon Power Plant ca. 2006):
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