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. 30, 2005
Filed:
May. 27, 1997
Mats Leijon, Västerås, SE;
Peter Templin, Köping, SE;
Claes Ivarson, Västerås, SE;
Lars Gertmar, Västerås, SE;
Peter Carstensen, Huddinge, SE;
Bertil Larsson, Västerås, SE;
Sören Berggren, Västerås, SE;
Erland Sörensen, Västerås, SE;
Bertil Berggren, Västerås, SE;
Gunnar Kylander, Västerås, SE;
Mons Hölleland, Västerås, SE;
Mats Leijon, Västerås, SE;
Peter Templin, Köping, SE;
Claes Ivarson, Västerås, SE;
Lars Gertmar, Västerås, SE;
Peter Carstensen, Huddinge, SE;
Bertil Larsson, Västerås, SE;
Sören Berggren, Västerås, SE;
Erland Sörensen, Västerås, SE;
Bertil Berggren, Västerås, SE;
Gunnar Kylander, Västerås, SE;
Mons Hölleland, Västerås, SE;
ABB AB, Vasteras, SE;
Abstract
In a plant containing a turbo-generator the magnetic circuit of the turbo-generator is included in an electric generator which directly supplies a high supply voltage of 20-800 kV, preferably higher than 36 kV. The insulation of the generator is built up of a cable () comprising one or more current-carrying conductors () with a number of strands () surrounded by outer and inner semiconducting layers () and intermediate insulating layers (). The outer semiconducting layer () is at earth potential. The phases of the winding are Y-connected. The Y-point may be insulated and protected from over-voltage by means of surge arresters, or else the Y-point may be earthed via a suppression filter.