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. 30, 2018
Filed:
Oct. 07, 2014
Applicant:
Abb Technology Ag, Zurich, CH;
Inventors:
Assignee:
ABB TECHNOLOGY AG, Zurich, CH;
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); G01R 31/11 (2006.01); H02H 7/26 (2006.01);
U.S. Cl.
CPC ...
G01R 31/085 (2013.01); G01R 31/088 (2013.01); G01R 31/11 (2013.01); H02H 7/265 (2013.01);
Abstract
The invention concerns a method of fault location in HVDC (High Voltage Direct Current) transmission lines, especially in mixed lines, where part of the line is overhead line and part is a cable line. The fault location is based on estimation arrival times of travelling waves induced by fault in transmission line that are propagating along the line from faulted point to the measurement point, which is located at one end of the transmission line.