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:
Jul. 24, 2012
Filed:
Dec. 19, 2007
Jan Czyzewski, Cracow, PL;
Jens Rocks, Freienbach, CH;
Norbert Koch, Dietikon, CH;
Przemyslaw Burzynski, Cracow, PL;
Jan Czyzewski, Cracow, PL;
Jens Rocks, Freienbach, CH;
Norbert Koch, Dietikon, CH;
Przemyslaw Burzynski, Cracow, PL;
ABB Research Ltd, Zurich, CH;
Abstract
The subject of the invention is an insulating structure with screens shaping the electric field, applicable in high-voltage bushings, high-voltage cables, cable accessories and in measuring instruments, especially instrument transformers. The structure according to the invention comprising layers of electrically insulating material between which there are inserted conducting sheets which are screens shaping the electric field in high-voltage electric power equipment is characterized in that the conducting sheets are made of an insulating substrate layer with a porous structure, impregnatable and compressible along the direction parallel to the sheet plane, and at least one surface of the substrate layer has a strongly developed surface and is coated with a metal layer.