Author(s)

A. Predin & R. Klasinc

Abstract

The static and dynamic behaviour of an emergency gate situated downstream of a horizontal-shaft turbine was studied on a physical model. The static behaviour of the gate was transferred to prototype conditions using Froude's law of similitude. The analysis and transfer of the dynamic movements of the gate, however, turned out to be much more complex than expected. In particular, we studied the behaviour of the emergency gate for the case of disconnection of the power unit from the system or breakdown of the guide vane system. We used analytical methods both in the

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