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:
Oct. 02, 2001
Filed:
Nov. 05, 1999
Applicant:
Inventors:
Mario Bilac, Lawrenceville, GA (US);
Charles Randall Dollar, II, Norcross, GA (US);
Assignee:
Siemens Energy & Automation, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 ;
U.S. Cl.
CPC ...
H02H 3/00 ;
Abstract
A circuit breaker system,using electronic trip units,. The electronic trip units,are coupled to a communications bus,whereby the electronic trip units,can be reconfigured, controlled, and/or monitored by a central computer,. Further, the electronic trip units are coupled to a separate control power supply line,and to a zone selective interlock system,. The zone selective interlock system,is configured to provide tripping delays to circuit breakers located upstream from a detected fault.