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AssigneeALSTOM Technology Ltd
InventorsHossein SAFARI ZADEH, Damir NOVOSEL, Jesus CONTRERAS-ESPADA
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A cooling system for bushings of an electric generator, which includes a casing housing a stator and a rotor connected to a rotor shaft activating at least a fan defining at least a high pressure zone and a low pressure zone. The generator has a plurality of phases electrically connected to hollow phase rings that are electrically connected to bushings supported by the casing and having cooling circuits to let a cooling medium pass through them to cool them. The outlets of the bushing cooling circuits are housed in the high pressure zone and are connected to inlets of the hollow phase rings. A method for cooling the bushings of an electric generator is also provided.
Cooling system for bushings (12) of an electric generator (1), which comprises a casing (2) housing a stator (3) and a rotor (4) connected to a rotor shaft (5) activating at least a fan (6) defining at least a high pressure zone (9) and a low pressure zone (8), said generator (1) having a plurality of phases electrically connected to hollow phase rings (11) that are electrically connected to bushings (12) supported by the casing (2) and having cooling circuits (22) to allow a cooling medium (17) to pass through them to cool them, outlets (24) of the bushing cooling circuits (22) are housed in the high pressure zone (9) and are connected to inlets (32) of the hollow phase rings (11).
A method for cooling bushings (12) of an electric generator (1), which comprises a casing (2) housing a stator (3) and a rotor (4) connected to a rotor shaft (5) activating at least a fan (6) defining at least a high pressure zone (9) and a low pressure zone (8), said generator having a plurality of phases electrically connected to hollow phase rings (11) that are electrically connected to bushings supported by the casing (2) and having cooling circuits (22) to allow a cooling medium to pass through them to cool them, the method comprising:
Dependencies are inferred from the claim text.