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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.:

US 9684026 B1

PDFFull Text
Date of Patent:
Jun. 20, 2017

Filed:

Oct. 08, 2013

Apparatus and method for automatic ground fault location determination in high resistance grounded motor drive system

Applicants:

Lixiang Wei, Mequon, WI (US);

Jeffrey D. Mcguire, Franklin, WI (US);

Jiangang HU, Grafton, WI (US);

Zhijun Liu, Menomonee Falls, WI (US);

Inventors:

Lixiang Wei, Mequon, WI (US);

Jeffrey D. McGuire, Franklin, WI (US);

Jiangang Hu, Grafton, WI (US);

Zhijun Liu, Menomonee Falls, WI (US);

Assignee:

Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);

Attorney:

Fay Sharpe LLP

Primary Examiner:

Melissa Koval

Assistant Examiner:

Courtney McDonnough

Int. Cl.
CPC ...
G01R 31/08 (2006.01); G01R 31/02 (2006.01); B60L 3/04 (2006.01); G01R 31/00 (2006.01); H02H 3/16 (2006.01); B60L 3/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/088 (2013.01); B60L 3/0069 (2013.01); B60L 3/04 (2013.01); G01R 31/005 (2013.01); G01R 31/025 (2013.01); H02H 3/16 (2013.01); B60L 2220/42 (2013.01); Y02T 10/648 (2013.01); Y02T 90/16 (2013.01);
Abstract

A PLC or other industrial controller programmed to locate ground faults in a networked high resistance grounded multi-drive system through network communications messaging to automatically place networked motor drives in various operational states to isolate individual drives for ground fault identification testing and selectively identify individual drives as suspected ground fault locations.

Find Patent Forward Citations

Wei, Lixiang. (2017). Apparatus and method for automatic ground fault location determination in high resistance grounded motor drive system (U.S. Patent No. 9684026). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9684026

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

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