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. 25, 2015
Filed:
Aug. 06, 2010
Przemyslaw Balcerek, Cracow, PL;
Marek Fulczyk, Kedzierzyn-Kozle, PL;
Eugeniusz Rosolowski, Wroclaw, PL;
Jan Izykowski, Wroclaw, PL;
Murari Saha, Vasteras, SE;
Piotr Pierz, Wroclaw, PL;
Przemyslaw Balcerek, Cracow, PL;
Marek Fulczyk, Kedzierzyn-Kozle, PL;
Eugeniusz Rosolowski, Wroclaw, PL;
Jan Izykowski, Wroclaw, PL;
Murari Saha, Vasteras, SE;
Piotr Pierz, Wroclaw, PL;
ABB RESEARCH LTD, Zurich, CH;
Abstract
The present invention is concerned with a method for faulted phase selection and fault type determination in electric power lines applicable both to series compensated and uncompensated power lines. The method comprising a fault inception detection and an estimation of fault phase current signals, pre-fault current signals and zero-sequence current in order to receive the absolute value of incremental current signals and their maximum value from which real value indicators for phase to phase faults, real value indicators for 3-phase fault and a real value indicator for ground fault are determined. The method further comprises