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.

Date of Patent:
Apr. 20, 2021

Filed:

Oct. 16, 2019
Applicant:

Schneider Electric Usa, Inc., Andover, MA (US);

Inventors:

Kevin M. Jefferies, Raleigh, NC (US);

Benjamin W. Edwards, Rolesville, NC (US);

Matthew L. White, Cary, NC (US);

Alan E. Freeman, Raleigh, NC (US);

Richard K. Weiler, Wake Forest, NC (US);

Assignee:

Schneider Electric USA, Inc., Andover, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01); H02H 7/08 (2006.01); H02H 7/085 (2006.01);
U.S. Cl.
CPC ...
H02H 7/0844 (2013.01); H02H 7/0816 (2013.01); H02H 7/0855 (2013.01);
Abstract

A progressive protection method automatically adapts a protection trip delay or fault timeout for a motor that is a member of a group of motors performing mutually similar or related tasks, based on the occurrence of a fault in another motor within the group, without requiring manual intervention. If the user requires stringent protection of the motors in a particular application, then the trip delay time for all of the motors in the group, may be shortened in response to recently-detected similar trips of other motors within the group. Alternatively, if the user prefers continuity of service for a particular application, then the trip delay time for all of the motors in the group, may be increased in response to recently-detected similar trips of other motors within the group, based on past experience with the occurrence of fault self-clearing for the motors in the group.


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