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1. WO2007139490 - STATOR WINDING INSULATION

Publication Number WO/2007/139490
Publication Date 06.12.2007
International Application No. PCT/SE2007/050350
International Filing Date 24.05.2007
Chapter 2 Demand Filed 28.02.2008
IPC
H02K 3/30 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
3Details of windings
30Windings characterised by the insulating material
CPC
H02K 3/30
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
3Details of windings
30Windings characterised by the insulating material
H02K 3/40
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
3Details of windings
32Windings characterised by the shape, form or construction of the insulation
40for high voltage, e.g. affording protection against corona discharges
Applicants
  • ABB TECHNOLOGY LTD. (AllExceptUS)
  • MÅRTENSSON, Eva [SE]/[SE] (UsOnly)
  • ERIKSSON, Hans-Åke [SE]/[SE] (UsOnly)
Inventors
  • MÅRTENSSON, Eva
  • ERIKSSON, Hans-Åke
Agents
  • KARLSSON, Leif
Priority Data
0601182-929.05.2006SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STATOR WINDING INSULATION
(FR) ISOLATION D'ENROULEMENT DE STATOR
Abstract
(EN)
The invention relates to a rotary electric machine having stator bars (1) with conductor strands (2) having a non-circular cross section and being surrounded by insulation (3). 5 According to the invention the insulation (3) has a permittivity that varies in the circumferential direction. Thereby the relative level of the peaks of the electric field inside the insulation can be reduced. The invention also relates to an elongated conductor. 10 (Fig. 1)
(FR)
La présente invention concerne une machine électrique rotative qui possède des barres de stator (1) avec des torons conducteurs (2) qui présentent une section transversale non circulaire et qui sont entourés par une isolation (3). Selon l'invention, l'isolation (3) possède une permittivité qui varie dans la direction circonférentielle. Ainsi, le niveau relatif des pointes du champ électrique à l'intérieur de l'isolation peut être réduit. L'invention concerne également un conducteur oblong. (Figure 1)
Latest bibliographic data on file with the International Bureau