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:
Aug. 11, 2020
Filed:
Oct. 31, 2017
Applicant:
Abb Power Grids Switzerland Ag, Baden, CH;
Inventor:
Bengt-Olof Stenestam, Ludvika, SE;
Assignee:
ABB Power Grids Switzerland AG, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 5/04 (2006.01); H02H 5/06 (2006.01); H02H 7/04 (2006.01); H02H 7/055 (2006.01); H01F 29/02 (2006.01); H01H 9/00 (2006.01); H02H 1/00 (2006.01); H01F 29/04 (2006.01); G01R 31/62 (2020.01);
U.S. Cl.
CPC ...
H02H 7/055 (2013.01); G01R 31/62 (2020.01); H01F 29/02 (2013.01); H01F 29/04 (2013.01); H01H 9/0005 (2013.01); H02H 1/0007 (2013.01); H01H 2009/0061 (2013.01);
Abstract
The present disclosure relates to a method of monitoring switching by an on-load tap changer (OLTC)from a first contactto a second contactof a transformer winding. The method includes measuring a voltage of the transformer. The method also includes measuring a temperature of the OLTC. The method also includes, based on the measured voltage and temperature, determining whether the switching from the first contact to the second contact has been successful.