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:
Aug. 07, 2007
Filed:
Jan. 13, 2003
Joseph C. Engel, Monroeville, PA (US);
Engelbert Hetzmannseder, Glendale, WI (US);
Kevin L. Parker, Pittsburgh, PA (US);
Peter J. Theisen, West Bend, WI (US);
Joseph C. Zuercher, Brookfield, WI (US);
Joseph C. Engel, Monroeville, PA (US);
Engelbert Hetzmannseder, Glendale, WI (US);
Kevin L. Parker, Pittsburgh, PA (US);
Peter J. Theisen, West Bend, WI (US);
Joseph C. Zuercher, Brookfield, WI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A circuit breaker for locating an arc fault for a protected circuit includes separable contacts interrupting the protected circuit and an arc fault detector determining an arc fault in the protected circuit. An analog to digital converter circuit measures a value of peak arc current at the arc fault detector. Another analog to digital converter circuit provides a peak line-to-neutral voltage. A memory provides an arc voltage operatively associated with the value of peak current. A microprocessor determines a distance from the arc fault detector to the arc fault from the value of peak arc current, a wire resistance per unit length or a wire conductance per unit length, the peak line-to-neutral voltage and the arc voltage.