Method of operating a hydraulic turbine or a pump-turbine

Details Method of operating a hydraulic turbine or a pump-turbine Method of operating a hydraulic turbine or a pump-turbine

1979-05-25

1981-05-12

Truhe, J. V.

Prime-mover dynamo plants

Turbogenerators

415 1, F02N 1104

Patent

active

042674590

ABSTRACT:
A method of operating a hydraulic turbine in which, when the hydraulic turbine is operated so as to shift the load from the watered condition at guide vanes closed to the generating operation area in a condition that the runner rotates in the turbine rotating direction, the hydraulic machine is temporarily disconnected from the electric power system thereby to decrease the revolution per minute and to allow the load to smoothly shift from the motoring operation to the power generation operation in the version of the hydraulic machine characteristic, and under this condition, the guide vane is gradually opened to set the revolution per minute to a given value, and then the hydraulic machine is recoupled with the electric power system for gaining the load.

REFERENCES:
patent: 3309057 (1967-03-01), Onooka
patent: 3403888 (1968-10-01), Hartland
patent: 3533709 (1970-10-01), Wicli
patent: 3658436 (1972-04-01), Oishi et al.
patent: 4014624 (1977-03-01), Takase et al.

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