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US 2018/0006530 A1Published application
Method for cooling a generator
AssigneeSiemens Aktiengesellschaft
InventorNorbert Huber
Life of this patent
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Abstract
A method for cooling a generator using cooling air flowing through the generator, wherein a density of the cooling air when the generator is idling and running passively at a mains frequency of a mains network to which the generator is connected is reduced relative to a density of the cooling air when the generator is operating under load.
Claims4
A method for cooling a generator using cooling air flowing through the generator, comprising:
- reducing the density of the cooling air in idle mode of the generator, in which the generator rotates passively at a grid frequency of a grid to which the generator is connected, relative to the density of the cooling air in load mode of the generator;
- wherein the density of the cooling medium in idle mode is reduced by increasing the moisture of the cooling medium,
- wherein the density of the cooling air in idle mode is reduced by at least partially replacing the cooling air with nitrogen;
- wherein the density of the cooling air in idle mode is reduced by at least partially replacing the cooling air with hydrogen below a lower ignition threshold.
1 more element
Dependencies are inferred from the claim text.