Racine—5 Years of Successful Operating Experience with the World's Largest Bulb Turbines

by G. R. Beachy, American Electric Power, Columbus, OH, USA,
H. Tschabuschnig, American Electric Power, Columbus, OH, USA,
H. K. Höller, American Electric Power, Columbus, OH, USA,

Document Type: Proceeding Paper

Part of: Water Power '87


In September 1982 two bulb turbine generating sets with a runner diameter of 7700 mm and a generator rating of 25 MVA were put into commercial operation at the Racine dam on the Ohio river. The paper first outlines the basic design features of the turbines and generators; 2-bearing-arrangement, transfer of forces to power house structure, generator cooling system, excitation, inertia constant and stability, etc. Operating experience with the 2 remotely controlled units up till now has been - contrary to some of the other North American bulb turbine installations - very satisfactory. Finally the results of a year-long study of fish movement through the turbine water passage and on fish mortality are presented.

Subject Headings: Turbines | Fish and fishery management | Hydraulic design | Hydraulic models | Dams | Rivers and streams | Hydro power | Ratings | Ohio River

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