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. 21, 2014
Filed:
Sep. 12, 2011
Joseph R. Rostron, McDonough, GA (US);
John H. Brunke, Freeland, WA (US);
Bradley John Schafer, Fayetteville, GA (US);
Richard Charles Leonhardt, McDonough, GA (US);
David Lester Moore, Marietta, GA (US);
Joseph R. Rostron, McDonough, GA (US);
John H. Brunke, Freeland, WA (US);
Bradley John Schafer, Fayetteville, GA (US);
Richard Charles Leonhardt, McDonough, GA (US);
David Lester Moore, Marietta, GA (US);
Southern States, LLC, Hampton, GA (US);
Abstract
A directional fault sectionalizing system that utilizes one phase voltage measurement and three phase current measurements to determine the directionality of high impedance faults on a three phase electric power circuit. This eliminates the need for two of the three voltage measuring devices at each monitoring station conventionally required to determine fault directionality, which makes it economical to install at a greater number of distribution tap points. The system is particularly useful for commonly used three-way tap points along distribution lines where three phase voltage measurement is not readily available. The system is capable of identifying faults under challenging circumstances, such faults occurring on unbalanced three phase power lines and faults occurring on tapped line segments where the currents are relatively small compared to the currents flowing in the main line segments.