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Field Tests of a Lewiston Pump-Generating Unit

by Richard N. Halas, New York Power Authority, Lewiston, United States,
Jack C. Howe, New York Power Authority, Lewiston, United States,
Robert J. Knowlton, New York Power Authority, Lewiston, United States,
Peter W. Ludewig, New York Power Authority, Lewiston, United States,
James B. Nystrom, New York Power Authority, Lewiston, United States,



Document Type: Proceeding Paper

Part of: Waterpower '91: A New View of Hydro Resources

Abstract:

An extensive field test program was undertaken on a Lewiston Pump-Generating Plant (LPGP) unit at the Niagara Power Project, owned and operated by the New York Power Authority. The objective was to determine the absolute performance characteristics, and included two types of flow measurement: acoustic and dye dilution. In addition, a cavitation monitoring test program was undertaken and the results are summarized. The LPGP units operate over a wider head range than most pump-turbines. The unit was significantly less efficient than expected from the model tests in both the pump and turbine modes.

Subject Headings: Power plants | Field tests | Hydro power | Pumps | Pumping tests | Pumping stations | Flow measurement | New York | United States

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