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Erschienen in:
1996 | OriginalPaper | Buchkapitel
Francis Turbine Surge: Discussion and Data Base
verfasst von : Thierry Jacob, Jean-Eustache Prénat
Erschienen in: Hydraulic Machinery and Cavitation
Verlag: Springer Netherlands
Enthalten in: Professional Book Archive
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A system is considered as stable in sustained operating conditions if the response to unavoidable disturbances does not endanger its safety. Normal disturbances of hydraulic turbines are pressure fluctuations [3, 5, 10], influenced by machine design, operating conditions and by the dynamic response of the water conduits and rotating components. They may be associated with mechanical fluctuations of shaft torque, rotational speed, hydraulic load on guide vanes etc. as well as with vibrations.