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

fYear

2010

Firstpage

243

Lastpage

246

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Quality and Supply Reliability Conference (PQ), 2010

Conference_Location

Kuressaare

Print_ISBN

978-1-4244-6978-9

Type

conf

DOI

10.1109/PQ.2010.5549991

Filename

5549991