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. 23, 2007
Filed:
Dec. 30, 2005
Murari Mohan Saha, Vasteras, SE;
Eugeniusz Rosolowski, Wroclaw, PL;
Jan Izykowski, Wroclaw, PL;
Rafal Molag, Swidnica, PL;
Murari Mohan Saha, Vasteras, SE;
Eugeniusz Rosolowski, Wroclaw, PL;
Jan Izykowski, Wroclaw, PL;
Rafal Molag, Swidnica, PL;
ABB Technology Ltd., Zürich, CH;
Abstract
A method for locating a fault in three terminal power line, having sections located in front of or behind of the tap point and which assumes occurrence of the fault in at least one of those sections. Three phase currents and voltages are measured at one end of the power lines system. The amplitudes of load currents in the remaining sections of the power lines system are measured before a fault occurs. The measurements of the amplitudes of load currents are stored in the remaining sections of the power lines system. Impedance data of the network are determined. The symmetrical components approach is used when calculating the location of the fault.