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:
Jan. 15, 2019
Filed:
Mar. 06, 2015
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Assignee:
ABB SCHWEIZ AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/26 (2006.01); H02J 3/12 (2006.01); H02J 3/18 (2006.01);
U.S. Cl.
CPC ...
H02J 3/26 (2013.01); H02J 3/12 (2013.01); H02J 3/1878 (2013.01); Y02E 40/30 (2013.01); Y02E 40/50 (2013.01);
Abstract
An AC power transformer includes primary and secondary windings for at least a first AC phase and a second AC phase, and a core for said at least first and second phases. The transformer further includes a control unit for transferring power from the first phase to the second phase via magnetic coupling in the core such that the sum of the phase vectors of all of the at least first and second phases is substantially zero.