The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Nov. 14, 1996
Johann Haldemann, Birr, CH;
Asea Brown Boveri AG, Baden, CH;
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.