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:
Sep. 06, 2005
Filed:
May. 27, 1997
Mats Leijon, Västerås, SE;
Mats Leijon, Västerås, SE;
ABB AB, Vasteras, SE;
Abstract
The present invention relates to a power transformer/reactor () for high voltages, comprising at least one winding having at least one current-carrying conductor. The winding comprises a solid insulation () surrounded by outer and inner layers () serving for equalization of potential and having semiconducting properties. The layers () and the insulation () adhere along essentially the whole of its contact surfaces. Said conductor is arranged interiorly of the inner semiconducting layer (). The outer layer () is connected to ground or otherwise relatively low potential. Said solid insulation in the windings constitute substantially the total electrical insulation in the power transformer/reactor.