Cost and Economics of Maintenance of Turbine Runner Cavitation

by Harold G. Hunt,

Serial Information: Journal of the Power Division, 1966, Vol. 92, Issue 1, Pg. 107-116

Document Type: Journal Paper

Abstract: Five, single unit, 20,000-kw hydroelectric power plants, built with turbine settings as specified by the manufacturer have runner cavitation or pitting repair problems in a short time when operated as peak load plants. The methods, procedures, materials, timing, and cost of in-place welding repairs are described and given for the initial maintenance up-keep of all plants. Cost records and an analysis of peak capacity operation show that the value of extra power far exceeds the increased cost of runner maintenance.

Subject Headings: Power plants | Maintenance | Hydro power | Industrial facilities | Turbines | Cavitation | Load factors | Welding

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