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, 2017
Filed:
Sep. 17, 2014
Applicant:
Alstom Technology Ltd., Baden, CH;
Inventors:
Yannick Kieffel, Saint Jean de Bournay, FR;
Alain Girodet, Chassieu, FR;
Christophe Creusot, Pizay, FR;
Jacques Porte, Lyons, FR;
Assignee:
ALSTOM TECHNOLOGY LTD, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02B 13/055 (2006.01); H01B 3/56 (2006.01); H01F 38/20 (2006.01);
U.S. Cl.
CPC ...
H02B 13/055 (2013.01); H01B 3/56 (2013.01); H01F 38/20 (2013.01);
Abstract
The present invention provides medium- or high-voltage equipment including a leaktight enclosure in which there are located electrical components and a gas mixture for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in said enclosure, the gas mixture comprising heptafluoroisobutyronitrile, carbon dioxide, and oxygen in small quantities. Electrical components covered in a solid dielectric layer of varying thickness are located inside said leaktight enclosure of the equipment of the invention.