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:
Sep. 29, 1994
Ernst Brem, Schlieren, CH;
Asea Brown Boveri AG, Baden, CH;
Abstract
An arrangement for providing exciter current in the rotor of an electric machine. The rotor winding is connected to the slip rings by exciter current conductors which are arranged in pairs in a central shaft bore of the rotor. The slip rings are arranged on a shaft stub which is connected to the rotor shaft with a releasable coupling. The central shaft bore includes bolt-side connection elements into which radially extending current supply bolts are releasably attached. The exciter current conductors are metallic pipes with an orbicular cross-section which are connected permanently at the other end to solid coupling-side connection elements. The ends of the connection elements penetrate a sealing plate in the coupling and are electrically insulated therefrom. Sealing rings are used to seal the sealing plate with respect to the rotor shaft and the ends of the coupling side connection elements which penetrate the sealing plate.