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:
Oct. 09, 2018

Filed:

Jun. 13, 2016
Applicant:

Cooper Technologies Company, Houston, TX (US);

Inventors:

David R. Smith, Mckeesport, PA (US);

Marc Andre Faulkner, Greenwood, SC (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/26 (2006.01); H02H 1/00 (2006.01); H02H 1/06 (2006.01); H02H 3/30 (2006.01); G01R 31/08 (2006.01); H02H 3/38 (2006.01);
U.S. Cl.
CPC ...
H02H 3/26 (2013.01); H02H 1/0007 (2013.01); H02H 1/06 (2013.01); G01R 31/086 (2013.01); H02H 3/302 (2013.01); H02H 3/382 (2013.01); H02H 3/387 (2013.01);
Abstract

In one embodiment, a network protector for a spot network includes a circuit breaker and a network protector relay coupled to the circuit breaker. The network protector relay is structured and configured to have network protector relay non-sensitive trip settings for controlling operation of the circuit breaker that will cause the network protector to remain closed when: (i) an angular difference (±) between a transformer phase-to-neutral voltage of the first feeder branch and a transformer phase-to-neutral voltage of the second feeder branch is less than or equal to a first threshold value, and (ii) a magnitude difference (±) between the transformer phase-to-neutral voltage of the feeder branch and the transformer phase-to-neutral voltage of the second feeder branch is less than or equal to a second threshold value.


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