Method of operating a hydraulic turbine or a pump-turbine
Patent
·
OSTI ID:6074693
A method of operating a hydraulic turbine is described 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.
- Assignee:
- Hitachi Ltd (Japan)
- Patent Number(s):
- US 4267459
- OSTI ID:
- 6074693
- Country of Publication:
- United States
- Language:
- English
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