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:
Apr. 03, 2012
Filed:
Jun. 13, 2008
Vincent Tilliette, Zurich, CH;
Jens Rocks, Freienbach, CH;
Stefan Gisy, Dogern, DE;
Roger Hedlund, Ludvika, SE;
Gerd Chalikia, Ludvika, SE;
Ruedi Meili, Hedingen, CH;
Vincent Tilliette, Zurich, CH;
Jens Rocks, Freienbach, CH;
Stefan Gisy, Dogern, DE;
Roger Hedlund, Ludvika, SE;
Gerd Chalikia, Ludvika, SE;
Ruedi Meili, Hedingen, CH;
ABB Research Ltd, Zurich, CH;
Abstract
A high-voltage bushing has a conductor and a core surrounding the conductor, wherein the core comprises a sheet-like spacer, which spacer is impregnated with an electrically insulating matrix material. The spacer is wound in spiral form around an axis, the axis being defined through the shape of the conductor. Thus, a multitude of neighboring layers is formed. The core further comprises equalization elements in appropriate radial distances to the axis. The equalization elements comprise electrically conductive layers, which layers have openings, through which openings the matrix material can penetrate, and in that the equalization elements are applied to the core separately from the spacer. The electrically conductive layers can be net-shaped, grid-shaped, meshed or perforated. The openings are fillable with the matrix material, e.g., a particle-filled resin can be used.