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:
May. 10, 2005
Filed:
May. 27, 1997
Mats Leijon, Västerås, SE;
Bertil Berggren, Västerås, SE;
Lars Gertmar, Västerås, SE;
Jan-anders Nygren, Västerås, SE;
Erland Sörensen, Västerås, SE;
Mats Leijon, Västerås, SE;
Bertil Berggren, Västerås, SE;
Lars Gertmar, Västerås, SE;
Jan-Anders Nygren, Västerås, SE;
Erland Sörensen, Västerås, SE;
ABB AB, Vasteras, SE;
Abstract
An electric high voltage AC machine intended to be directly connected to a distribution or transmission network () comprises at least one winding. This winding comprises at least one current-carrying conductor, a first layer having semiconducting properties provided around said conductor, a solid insulating layer provided around said first layer, and a second layer having semiconducting properties provided around said insulating layer. In addition grounding means () are provided to connect at least one point of said winding to ground.