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Murray?Commissioning Maxi Hydro with Mini Flow

by Laurence F. Henry, Voith Hydro, Inc, United States,



Document Type: Proceeding Paper

Part of: Waterpower '89

Abstract:

The Murray Hydroelectric Project contains two of the largest pit turbines in the world. An existing dam constructed for navigation and flood control on the Arkansas River, Lock and Dam No. 7, was utilized in developing this low head site for the City of North Little Rock. A two-stage epicyclic speed increaser, maybe the largest in the world, raises the 45 RPM turbine speed to the 450 RPM required by the generator. If the machinery is giant-sized, a higher degree of complication attends the commissioning, and with the additional constraint of accomplishing the task under minimum flow conditions due to drought, normal procedures must be abandoned. This paper describes some of the techniques utilized in conserving stored water during commissioning.

Subject Headings: Hydro power | Turbines | Water storage | Power plants | Locks (dam) | Weirs | Water shortage | Arkansas

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