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:
May. 20, 2014
Filed:
Oct. 03, 2008
Przemyslaw Balcerek, Cracow, PL;
Marek Fulczyk, Kedzierzyn-Kozle, PL;
Eugeniusz Rosolowski, Wroclaw, PL;
Jan Izykowski, Wroclaw, PL;
Murari Saha, Vasteras, SE;
Przemyslaw Balcerek, Cracow, PL;
Marek Fulczyk, Kedzierzyn-Kozle, PL;
Eugeniusz Rosolowski, Wroclaw, PL;
Jan Izykowski, Wroclaw, PL;
Murari Saha, Vasteras, SE;
ABB Research Ltd., Zurich, CH;
Abstract
A method for fault location in series compensated power transmission lines using two-end unsynchronized voltage and current measurements in stations A and B. The method includes performing a subroutine I for determining whether the fault occurred in a line section LA between the station A and a SC&MOV and the distance dto the fault from station A. Subroutine II determines whether the fault occurred in a line section LB between the station B and the SC&MOV and the distance dto the fault from station B. The synchronization angle eis determined in subroutine I, and the synchronization angle eis determined in subroutine II. Then, the distance to fault dor dis determined. Finally, an equivalent impedance of compensating banks at fault stageand, and pre-fault stageis calculated in order to determine whether distance dor dis the final result.