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. 28, 2025
Filed:
Jun. 08, 2023
Applicant:
Hitachi Energy Ltd, Zürich, CH;
Inventors:
Assignee:
HITACHI ENERGY LTD, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/38 (2006.01); H01F 30/10 (2006.01); H01F 30/12 (2006.01);
U.S. Cl.
CPC ...
H01F 27/38 (2013.01); H01F 30/10 (2013.01); H01F 30/12 (2013.01);
Abstract
A transformer including a core, such as, for example, a single-phase core, that includes a plurality of wound limbs, primary and secondary concentric windings formed on each limb of the plurality of wound limbs, and at least one tertiary concentric winding formed on fewer than all limbs of the plurality of wound limbs.