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:
Jul. 17, 2018
Filed:
Sep. 08, 2015
Applicant:
Abb Research Ltd., Zurich, CH;
Inventors:
Abhisek Ukil, Singapore, SG;
Julio Danin Lobo, Baden, CH;
Assignee:
ABB Research Ltd., Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/08 (2006.01); H02H 7/22 (2006.01); G01R 19/00 (2006.01); H02H 1/00 (2006.01); H02H 7/26 (2006.01);
U.S. Cl.
CPC ...
H02H 3/083 (2013.01); G01R 19/0092 (2013.01); H02H 7/226 (2013.01); H02H 1/0007 (2013.01); H02H 7/263 (2013.01);
Abstract
A power line protection system and method are described with a current meter for monitoring the current in the protected power line and a circuit breaker, with the current meter including a sensor, particularly a fiber optic current sensor, for monitoring a direct current component in the current transmitted and an analyzer for testing the direct current component and for generating a fault signal for the circuit breaker.