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. 18, 2022
Filed:
Jan. 14, 2020
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventors:
Ritwik Chowdhury, Charlotte, NC (US);
Gabriel Benmouyal, Boucherville, CA;
Carolyn Sun, Charlotte, NC (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 1/00 (2006.01); H02J 3/04 (2006.01); H02J 13/00 (2006.01); H02H 3/00 (2006.01); G01R 19/00 (2006.01); G01R 31/58 (2020.01); G01R 29/24 (2006.01); G05B 19/042 (2006.01);
U.S. Cl.
CPC ...
H02H 1/0007 (2013.01); G01R 19/0084 (2013.01); G01R 29/24 (2013.01); G01R 31/58 (2020.01); G05B 19/042 (2013.01); H02H 1/0092 (2013.01); H02H 3/00 (2013.01); H02J 3/04 (2013.01); H02J 13/00002 (2020.01); G05B 2219/2639 (2013.01);
Abstract
Systems and methods to estimate trapped charge for a controlled automatic reclose are described herein. For example, an intelligent electronic device (IED) may calculate an analog amount of trapped charge of each phase of a power line based on voltage measurements of the power line. The IED may close a switching device of each phase at a time corresponding to a point-on-wave associated with the analog amount of trapped charge of the respective phase.