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:
May. 03, 2022
Filed:
Aug. 30, 2019
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventors:
Kanchanrao Gangadhar Dase, Pullman, WA (US);
Mohammed Shabbir Pithapur, Pullman, WA (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/38 (2006.01); G01R 31/58 (2020.01); H02H 7/22 (2006.01); H02H 1/00 (2006.01); H02J 13/00 (2006.01); G01R 31/50 (2020.01);
U.S. Cl.
CPC ...
G01R 31/58 (2020.01); G01R 31/50 (2020.01); H02H 1/0007 (2013.01); H02H 3/382 (2013.01); H02H 7/22 (2013.01); H02J 13/0006 (2013.01);
Abstract
Systems and methods may be used to determine fault types and/or directions even during a loss of potential by receiving, at one or more processors, an indication of a pre-fault power flow direction for a power delivery system. The one or more processors then determine a fault direction during a fault for the power delivery system using current vector angles and the pre-fault power flow direction.