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. 16, 2021
Filed:
Feb. 20, 2020
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Edmund O. Schweitzer, III, Pullman, WA (US);
David E. Whitehead, Pullman, WA (US);
Tony J. Lee, Henderson, NV (US);
David J. Casebolt, Moscow, ID (US);
Krishnanjan Gubba Ravikumar, Pullman, WA (US);
Austin Edward Wade, Moscow, ID (US);
Bruce A. Hall, Pullman, WA (US);
Kelsey M. Loughlin, Colfax, WA (US);
Sean D. Robertson, Moscow, ID (US);
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Abstract
Disclosed herein are systems for maintaining protection of electric power delivery systems in the event of a control power failure or other anomaly. A reliable power module conditions electric power from multiple independent sources and provides electrical operational power to electric power delivery system protective loads. The reliable power module includes a power storage device for providing operational power even upon loss of all control power sources. The power storage may be sufficient to ride through expected losses such as a time to start up backup generation. The power storage may be sufficient to power a trip coil. Thus, electric power system protection is maintained even upon loss of control power.