Title :
Mobile earth fault localization by tracing current injection
Author :
Raunig, C. ; Fickert, L. ; Obkircher, C. ; Achleitner, G.
Author_Institution :
Inst. for Electr. Power Syst., Univ. of Technol. Graz, Graz, Austria
Abstract :
In this paper the authors present an interesting method for mobile earth fault localization in resonant grounded grids. The method is based on an additional current injection with a non-grid-frequency current and detection with magnetic-field sensors in close vicinity of the line. The advantage of the presented method is that a mobile earth fault localization-unit for the operation personal is provided. Especially in medium voltage grids this method provides an interesting method for earth fault localization.
Keywords :
earthing; fault location; power grids; current injection tracing; magnetic-field sensors; medium voltage grids; mobile Earth fault localization; mobile fault detection; nongrid frequency current; resonant grounded grids; Analytical models; Computer science; Earth; Fault tolerance; Hardware design languages; Information analysis; Information technology; Microcontrollers; Microprocessors; Transient analysis; earth fault localization; mobile fault detection; non-grid-frequency current injection; resonant grounded grid;
Conference_Titel :
Electric Power Quality and Supply Reliability Conference (PQ), 2010
Conference_Location :
Kuressaare
Print_ISBN :
978-1-4244-6978-9
DOI :
10.1109/PQ.2010.5549991
