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:
Apr. 11, 2006
Filed:
Mar. 04, 2004
Michael Tobin, Burlington, CT (US);
Timothy Gerard Richter, Wynantskill, NY (US);
Hemant Mody, Avon, CT (US);
Michael Ronzello, Kensington, CT (US);
Dean A. Robarge, Southington, CT (US);
Michael Tobin, Burlington, CT (US);
Timothy Gerard Richter, Wynantskill, NY (US);
Hemant Mody, Avon, CT (US);
Michael Ronzello, Kensington, CT (US);
Dean A. Robarge, Southington, CT (US);
General Electric Company, Schenectady, NY (US);
Abstract
An apparatus for interrupting an electrical short circuit current in an electrical distribution system having a plurality of phases is disclosed. The apparatus includes a housing, a plurality of separable conduction paths, an operating mechanism in operable communication with the plurality of conduction paths, an electronic trip unit in signal communication with each of the plurality of conduction paths and in operable communication with the operating mechanism, and an electromagnetic trip unit in signal communication with each of the plurality of conduction paths and in operable communication with the operating mechanism. The electromagnetic trip unit is configured to be operably responsive to a first half-cycle waveform of the short circuit current prior to the electronic trip unit being operably responsive to a second multi-cycle waveform of the short circuit current.