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:
Mar. 13, 2018
Filed:
Mar. 02, 2016
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Marcos A. Donolo, Pullman, WA (US);
Angelo D'Aversa, Ambler, PA (US);
Subhash C. Patel, West Chester, PA (US);
Vinod K. Yedidi, King of Prussia, PA (US);
Jianchun Qin, Ambler, PA (US);
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Abstract
Monitoring thermal conditions of an electric motor using current signals from power supplied to the motor is disclosed herein. The current signals may be used to calculate composite current values which may be used to calculate slip. The slip may be used to provide thermal monitoring and protection to the electric motor. Slip may be calculated using only values from the stator of the electric motor for providing thermal monitoring and protection to electric motors where rotor measurements are not available.