Mechanical Stress Behavior Inside Slots of Large Hydro Generators.

Abstract

The mechanical design and construction of slot wedges which are typically used in large synchronous machines must be robust enough to resist all occurring electromagnetic and mechanical force magnitudes within various operational states. Therefore, the invoked mechanical stress distributions near the slot wedge and the slot bottom are investigated with the aid of numerical and analytical methods. All performed investi-gations are carried out for several material properties which are typically used for industry applications.