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:
Oct. 25, 2022
Filed:
Jul. 10, 2020
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/32 (2006.01); G01R 31/12 (2020.01); G01R 31/62 (2020.01); G01R 31/14 (2006.01); H01F 27/40 (2006.01); H02H 3/22 (2006.01); H01F 38/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/1227 (2013.01); G01R 31/14 (2013.01); G01R 31/62 (2020.01); H01F 27/32 (2013.01); H01F 27/402 (2013.01); H02H 3/22 (2013.01); H01F 2038/006 (2013.01);
Abstract
Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.