Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-11-18
1998-06-02
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310213, 310 45, 336187, 336 84C, 174 34, 174117F, 174117FF, 174127, H02K 314
Patent
active
057605165
ABSTRACT:
The stator winding of an electrical machine comprises conductor elements which are spaced apart from one another, are electrically insulated from one another and are surrounded over their entire length by common main insulation. The cavities, which are caused by the arrangement on both bar narrow sides of the conductor elements and the main insulation, are filled with an electrically semiconductive compound which, for its part, is covered by an electrically semiconductive strip. In order to provide a smooth bar surface, the electrically semiconductive strip is composed of a fiber-reinforced plastic, which has incisions on alternate sides of the narrow sides of the conductor bar oriented transversely with respect to the bar's longitudinal direction; these incisions are deeper than half the strip width and have a cut width which is on the order of magnitude of the strip thickness.
REFERENCES:
patent: 4308476 (1981-12-01), Schuler
patent: 4403163 (1983-09-01), Armerding et al.
patent: 4453035 (1984-06-01), Neuroth
patent: 4707568 (1987-11-01), Hoffman et al.
Baumann Thomas
Oesterheld Jorg
Asea Brown Boveri AG
Stephan Steven L.
Tamai Karl
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