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:
Aug. 21, 2007
Filed:
Mar. 30, 2005
Mats Leijon, not provided, SE;
Thorsten Shütte, V{hacek over (a)}ster{hacek over (a)}s, SE;
Christian Sasse, Stafford, GB;
Udo Fromm, München, DE;
Stefan G. Johansson, V{hacek over (a)}ster{hacek over (a)}s, SE;
Mats Leijon, not provided, SE;
Thorsten Shütte, V{hacek over (a)}ster{hacek over (a)}s, SE;
Christian Sasse, Stafford, GB;
Udo Fromm, München, DE;
Stefan G. Johansson, V{hacek over (a)}ster{hacek over (a)}s, SE;
ABB AB, Västerås, SE;
Abstract
A rotating asynchronous converter and a generator device having a first stator connected to a first AC network with a first frequency f, and a second stator connected to a second AC network with a second frequency f. The converter has a rotor which rotates in dependence of the first and second frequencies f, f. The stators each have at least one winding formed of at least one current-carrying conductor, and an insulation system, formed of semiconducting layers each forming an equipotential surface, and a solid insulation between the semiconducting layers.