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:
Dec. 31, 2019
Filed:
Aug. 02, 2017
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventor:
Marcos A. Donolo, Pullman, WA (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02P 29/024 (2016.01); G01P 3/481 (2006.01); G01D 5/34 (2006.01); H02H 7/08 (2006.01); H02P 23/14 (2006.01); G01P 3/48 (2006.01); G01R 31/34 (2006.01); H04B 7/24 (2006.01); G01S 11/02 (2010.01);
U.S. Cl.
CPC ...
H02P 29/024 (2013.01); G01D 5/34 (2013.01); G01P 3/481 (2013.01); G01S 11/02 (2013.01); H02P 29/0241 (2016.02); G01P 3/48 (2013.01); G01R 31/343 (2013.01); H02H 7/0805 (2013.01); H02H 7/0833 (2013.01); H02P 23/14 (2013.01); H04B 7/24 (2013.01);
Abstract
Systems and methods are disclosed herein for monitoring and detecting a loss of synchronism in an electric motor, such as a synchronous motor. A monitoring system may compare a measured or provided electric power system frequency with a measured rotational frequency of the rotor of the electric motor. The rotational frequency of the rotor may be obtained from a shaft-mounted device. The monitoring system may determine a slip condition and/or a loss of synchronism of the electric motor.