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.

Date of Patent:
Sep. 08, 2015

Filed:

Sep. 04, 2014
Applicant:

Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);

Inventors:

Normann Fischer, Colfax, WA (US);

Amandeep Singh Kalra, Pullman, WA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/14 (2006.01); G01R 31/02 (2006.01); G01R 31/08 (2006.01); H02H 3/16 (2006.01);
U.S. Cl.
CPC ...
G01R 31/08 (2013.01); G01R 31/085 (2013.01); G01R 31/086 (2013.01); G01R 31/088 (2013.01); H02H 3/165 (2013.01);
Abstract

Detection of a fault in an ungrounded electric power distribution system that includes a plurality of feeders and buses is disclosed herein. Embodiments consistent with the present disclosure may monitor an electrical parameter associated with each of a plurality of feeders and buses in the ungrounded electric power distribution system. An incremental change in the monitored electrical parameters may be determined using the monitored electrical parameter. Further, the incremental change may be associated with a first sub-set of the plurality of feeders. Torque values for the feeders may be calculated using a reference quantity from the bus first exhibiting an incremental change above a threshold. A feeder having the largest incremental change in the first sub-set of the plurality of feeders may be identified. A fault may be identified based on the torque and the incremental change.


Find Patent Forward Citations

Fischer, Normann. (2015). Detection of a fault in an ungrounded electric power distribution system (U.S. Patent No. 9128140). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9128140

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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