Loading patent…
OwnerMats Leijon, Peter Templin +2inventors
InventorsMATS LEIJON, PETER TEMPLIN, MONS HOLLELAND, CLAES IVARSON
Estimating the term…
The present invention relates to a rotating electric high voltage machine comprising a stator (8), a rotor (7; 37; 47) and at least one winding. The machine is characterized in that said winding comprises at least one current-carrying conductor (2), that a first layer (3) having semiconducting properties is provided around said conductor, that a solid insulating layer (4) provided around said first layer, and that a second layer (5) having semiconducting properties is provided around said insulating layer. Alternatively, the rotating electric machine according to the invention is provided with a magnetic circuit for high voltage comprising a magnetic core and a winding, and is characterized in that said winding is formed of a cable (1; 11) comprising at least one current-carrying conductor (2), that each conductor comprises a number of strands (18), that an inner semiconducting layer (3) is provided around each conductor, that an insulating layer (4) of solid insulating material is provided around said inner semiconducting layer, and that an outer semiconducting layer (5) is provided around said insulating layer.
A rotating electric high voltage machine comprising a stator (8), a rotor (7;37;47) and at least one winding, characterized in that said winding comprises at least one current-carrying conductor (2), that a first layer (3) having semiconducting properties is provided around said conductor, that a solid insulating layer (4) is provided around said first layer, and that a second layer (5) having semiconducting properties is provided around said insulating layer.
A rotating machine according to any one of the preceding claims, characterized in that at least two adjacent layers have substantially equal thermal expansion coefficients.
A rotating machine according to any one of the preceding claims, characterized in that said current-carrying conductor (2) comprises a number of strands (18), only a minority of said strands being uninsulated from each other.
A rotating machine according to any one of the preceding claims, characterized in that each of said three layers (3,4,5) is solidly connected to the adjacent layer along substantially the whole connecting surface.
A rotating electric machine having a magnetic circuit for high voltage comprising a magnetic core and a winding, characterized in that said winding is formed of a cable (1;11) comprising at least one current-carrying conductor (2), that each conductor comprises a number of strands (18), that an inner semiconducting layer (3) is provided around each conductor, that an insulating layer (4) of solid insulating material is provided around said inner semiconducting layer, and that an outer semiconducting layer (5) is provided around said insulating layer.
A rotating electric machine according to any one of the preceding claims, characterized in that said cable also comprises a metal shield and a sheath.
Dependencies are inferred from the claim text.