Experience with Turbine Generator Life Cycle Management Process

摘要

Nuclear power plants are applying the Life Cycle Management (LCM) processes to manage aging degradation and obsolescence of important plant systems. The Electric Power Research Institute (EPRI) has developed an LCM process and some supporting software to help plant engineers to develop such LCM plans for systems important to plant reliability, availability and profitability. The Institute of Nuclear Power Operations (INPO) has integrated LCM in its equipment reliability industry guidance. The general objective of the LCM process is to provide system engineers with generic information, data and guidance to generate long-term equipment reliability plans and focus on areas where there may be opportunities for cost-effective improvements in the remaining plant life. The LCM process was applied to the main generator since it is subject to significant degradation and requires costly maintenance. This paper describes a typical LCM process for the main generator and exciter. The process includes assessment of the industry operating experience with generators, plant specific performance review, and the aging and obsolescence assessment. The process has been applied to 17 generators at 13 plants in the USA and Spain, to date.