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:
Sep. 15, 2020
Filed:
Jun. 18, 2018
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventor:
Shankar V. Achanta, Pullman, WA (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/60 (2020.01); G01R 15/18 (2006.01); H02J 13/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/60 (2020.01); G01R 15/18 (2013.01); H02J 13/00001 (2020.01);
Abstract
Electric power system phase detection systems and methods. One or more line mounted intelligent electronic devices (IEDs) measure voltage at various points of a power system. The measured voltage is timestamped with a reference signal and compared with a timestamped voltage at a location where a phase on each conductor of the power system is known. Pattern matching using the measured voltage may be used to determine the phase at locations where the phase is unknown.