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:
Nov. 27, 2012
Filed:
Apr. 03, 2009
Edmund O. Schweitzer, Iii, Pullman, WA (US);
Laurence V. Feight, Island Lake, IL (US);
James Manely Duros, Chicago, IL (US);
Joseph Robert Rauch, Cary, IL (US);
Edmund O. Schweitzer, III, Pullman, WA (US);
Laurence V. Feight, Island Lake, IL (US);
James Manely Duros, Chicago, IL (US);
Joseph Robert Rauch, Cary, IL (US);
Schweitzer Engineering Laboratories Inc, Pullman, WA (US);
Abstract
A three-phase faulted circuit indicator adjustable to accommodate a variety of three-phase power cables is disclosed. In one embodiment, faulted circuit indicator comprises a flexible holder that encircles the monitored conductor slightly more than one time. The flexible holder includes a plurality of magnetic sensors for monitoring the current within the internal conductors of the power cable, a logic circuit for determining the occurrence of a fault, and an output device for providing an indication of a fault. In a second embodiment, the faulted circuit indicator comprises a plurality of sensor compartments, each disposed about a central point, and each coupled to two other sensor compartments.