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. 05, 2020
Filed:
May. 01, 2018
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventors:
Krishnanjan Gubba Ravikumar, Pullman, WA (US);
Ashish Upreti, Pullman, WA (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 1/00 (2006.01); G05B 9/02 (2006.01); H02H 3/00 (2006.01); H02H 3/46 (2006.01); H02H 7/26 (2006.01);
U.S. Cl.
CPC ...
H02H 1/0007 (2013.01); G05B 9/02 (2013.01); H02H 1/0092 (2013.01); H02H 3/00 (2013.01); H02H 3/46 (2013.01); H02H 7/263 (2013.01);
Abstract
A system for determining a disturbance in an electrical power delivery system external to a distributed site based on rate of change of frequency and power flow at the distributed site. The system may open a breaker to isolate the distributed site from the electric power delivery system upon detection of a disturbance external to the distributed site.