Tennessee valley authority hydroelectric stations-electrical and mechanical design

Design policies have been developed and established during the building and operating of 14 major hydroelectric generating stations since 1934. Turbines, governors, generators, transformers, switchgear, and other major equipment have been selected generally in accordance with normal manufacturers´ designs except in specific cases where operating experience has indicated a definite need for improvement. Many of the improvements subsequently have become standardized by the manufacturers. Switching, bussing, control, relaying, wiring, piping, auxiliary equipment, and other station features have been developed by the Tennessee Valley Authority, using manufacturers´ standard components as far as possible. The bases for selection of equipment and for development of station designs undoubtedly are applicable to other hydroelectric projects.