Stationary induction machine and a cable therefor
AssigneeABB AB
InventorClaes Areskoug
Life of this patent
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Abstract
A stationary induction machine including a winding (2) including an elongate, flexible cable (1), having an electric lead (7), and a cooling device, arranged, with the aid of a coolant, to divert excess heat generated in the lead during operation of the induction machine, which lead is in the form of a tube and surrounds a continuous channel (10) for the circulation of said coolant. In accordance with the invention, the cable includes a cooling tube (4) of a polymer material that is arranged in the lead and forms said channel. The invention also relates to a cable for such an induction machine.
Claims11
A stationary induction machine including
- at least one winding (2), including an elongate, flexible cable (1), having an electric lead (7), and
- a cooling device, arranged, with the aid of a coolant, to divert excess heat generated in the lead (7) during operation of the induction machine,
- where the lead (7) is in the form of a tube and surrounds a continuous channel (10) for the circulation of said coolant, characterized in that the cable (1) includes a cooling tube (4) of a polymer material that is arranged in the lead (7) and forms said channel (10).
An elongate, flexible cable (1) including an electric lead (7) and a fixed electrically insulating layer (9) of a polymer material surrounding the lead (7), which cable (1) is intended to form a winding (2) in a stationary induction machine, in which a cooling device is arranged, with the aid of a coolant, to displace excess heat generated in the lead (7) during operation of the induction machine, which lead (7) is in the form of a tube and surrounds a continuous channel (10) for the circulation of said coolant, characterized in that the cable (1) includes a cooling tube (4) of a polymer material that is arranged in the lead (7) and forms said channel (10).
Dependencies are inferred from the claim text.