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:
Aug. 04, 2020
Filed:
May. 26, 2015
Applicant:
Abb Power Grids Switzerland Ag, Baden, CH;
Inventors:
Assignee:
ABB Power Grids Switzerland AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2020.01); H02H 7/26 (2006.01); G01R 31/11 (2006.01); G01R 23/167 (2006.01); H02H 1/00 (2006.01); H02H 3/44 (2006.01); G01R 31/40 (2020.01);
U.S. Cl.
CPC ...
H02H 7/265 (2013.01); G01R 23/167 (2013.01); G01R 31/08 (2013.01); G01R 31/11 (2013.01); H02H 1/0007 (2013.01); H02H 3/44 (2013.01); G01R 31/085 (2013.01); G01R 31/40 (2013.01); H02H 7/268 (2013.01);
Abstract
There is provided mechanisms for travelling wave protection of a transmission line. A method includes performing high-pass filtering of a current and/or voltage measurement of a transmission line so as to detect fault-caused high-frequency components of the current and/or voltage measurement. The method includes providing a result of the high-pass filtering as input to a trip decision maker performing travelling wave detection.