General full-scale investigations of the units and penstocks of the Khrama No. 2 hydroelectric station
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Full-scale tests on compound turbines with the highest heads in the Soviet Union have shown that the Leningrad Machine Works have built a turbine with very high energy indices. The deviation between actual characteristics and those obtained from model investigations point to the need for improving the procedure for converting efficiencies from the model to the actual, particularly in the range of conditions deviating from the optimum.
It is necessary to develop more effective methods for mitigating instability in the turbine, including the admission of air under the runner for the purpose of extending the permissible power range of the turbine.
The procedure developed for calculating transients in compound turbines and hydroelectric station penstocks provides sufficiently reliable data, as confirmed by the results of full-scale tests.
When studying the need for installing no-load releases, it is necessary to take into account the inertia constant of the penstocks and to carry out a complete analysis of the nature of the transients when regulating the units.
KeywordsPower Generation Model Investigation Reliable Data Power Engineer Renewable Energy Source
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