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:
Jun. 28, 2016

Filed:

Oct. 21, 2013
Applicant:

Eaton Corporation, Cleveland, OH (US);

Inventor:

Robert Eugene Hulse, Wayne, ME (US);

Assignee:

EATON CORPORATION, Cleveland, OH (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05D 3/12 (2006.01); H02H 7/30 (2006.01); H02H 7/26 (2006.01);
U.S. Cl.
CPC ...
H02H 7/30 (2013.01); H02H 7/262 (2013.01);
Abstract

A power system includes main circuit interrupters each having a load output, feeder circuit interrupters, a number of tie circuit interrupters, and a circuit. The circuit is structured to block communication, at least when at least one of the tie circuit interrupters has an open state between a first and a second of the main circuit interrupters, of a zone selective interlocking output of one of the feeder circuit interrupters having a line input electrically connected to the load output of the first main circuit interrupter to a zone selective interlocking input of the second main circuit interrupter, and of a zone selective interlocking output of a different one of the feeder circuit interrupters having a line input electrically connected to the load output of the second main circuit interrupter to a zone selective interlocking input of the first main circuit interrupter.


Find Patent Forward Citations

Loading…