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:
Dec. 05, 2023
Filed:
Dec. 12, 2019
Applicant:
Hitachi Energy Switzerland Ag, Baden, CH;
Inventors:
Assignee:
HITACHI ENERGY LTD, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 17/28 (2006.01); H01B 7/28 (2006.01);
U.S. Cl.
CPC ...
H01B 7/28 (2013.01);
Abstract
Electrical bushing for medium and high voltage comprising a dielectric bushing main body a conductor extending through the bushing main body and being electrically insulated by the bushing main body, at least a conductive foil concentrically arranged around the conductor along at least a part of its length, and a barrier layer at least partially covering an edge region of said conductive foil, wherein the barrier layer has a dielectric strength greater than the dielectric strength of the dielectric bushing main body and greater than 150 kV/mm.