High-voltage electric rotary machine and a method for cooling the conductors of said machine
AssigneeVoith Siemens Hydro Power Generation, Inc.
InventorsStefan Kulig, Dirk Peier, Klaus Sedlazeck
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Abstract
The aim of the invention is to ensure efficient coolilng in an electric rotary machine (2), in particular in a high-voltage generator. To achieve this, the invention provides a coolant channel (10) which extends in a radial direction and in which a number of high-voltage conductors (14) are located. A coolant gas is preferably used as the coolant. The advantage of positioning the high-voltage cables (14) in the coolant channels (10) is that the coolant comes into direct contact with said high-voltage cables (14), thus ensuring efficient and uniform cooling.
Claims9
Electric rotary machine (2), in particular, a generator, with a stator (4) and with a stator coil, which has a number of high-voltage cable (14), characterized in that a coolant channel (10) is provided, in which several of the high-voltage cables (14) are arranged:
Machine (2) as per one of the aforementioned claims characterized in that the coolant channel (10) has a rectangular geometry.
Machine (2) as per one of the aforementioned claims characterized in that the coolant channel (10) expands especially gradually outward in the radial direction.
Procedure for cooling an electric rotary machine (2), in particular, a generator, which has a stator (4) with a stator coil, which comprises a number of high-voltage cables (14), characterized in that the high-voltage cables (14) are cooled directly by a coolant.
Dependencies are inferred from the claim text.