An ongoing program of equipment evaluation and assessment is a key factor in keeping steam turbine/generators operating at optimal levels. Whether it's a scheduled or forced outage, Toshiba's experienced condition assessment engineering staff is able to detect deterioration in equipment, identify the causes related to degradation of performance, and recommend cost-effective solutions that can be performed as part of any predictive or preventive maintenance regimen.
Condition assessment is performed on various rotating and stationary components, such as turbine/generator rotors, generator rotor retaining rings, dovetails and tooth tops, turbine rotor blade attachment areas and shrunk on disks, casings, inlet sleeves, etc. Condition assessment typically includes the following:
The rate of the damage is dependent on the material condition, stress levels, and operating conditions of a component.