Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-11-14
1998-07-07
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310213, 174 33, 174 34, H02K 314
Patent
active
057774170
ABSTRACT:
Winding bars of AC machines include a multiplicity of mutually electrically insulated conductor elements, which are transposed according to the Roebel principle. The conductor elements in the two end clip sections and in the active part section are transposed with one another.
In order to achieve virtually perfect field compensation in the winding overhang, the conductor elements in the two end clip sections have a transposition of between 60.degree. and 120.degree.. In the active part section, either an incomplete transposition is provided, i.e. the transposition in the active part section is uniform and less than 360.degree., or, given a complete 360.degree. transposition in the active part section a void, i.e. a nontransposed section, is provided in the center of the active part, while the transposition in the active part section outside this nontransposed section is a uniform 180.degree. transposition.
REFERENCES:
patent: 2714975 (1955-08-01), Heidbreder
patent: 3585428 (1971-06-01), Bennington
patent: 3614497 (1971-10-01), Brenner
Xu Shanchun, et al. "A New Transposition Technique of Stator Bars of The Hydrogenerator", Proceedings of International Symposium on Salient-Pole Machines With Particular Reference to Large Hydro-Electric Generators and Synchronous Motors, (pp. 384-389), Oct. 1993.
M. Bruderlink, et al. "Herstellung der Wicklungen elektrischer Maschinen", (pp. 69-83), 1973.
Asea Brown Boveri AG
Nguyen Tran N.
Stephan Steven L.
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