Evaluation of the new method Vdip for an earth fault location

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Paper number
94
Working Group Number
Conference name
CIRED 2019
Conference date
3-6 June 2019
Conference location
Madrid, Spain
Peer-reviewed
Yes
Short title
Convener
Authors
Topolanek, David, Brno University of Technology, Czech Republic
Toman, Petr, Brno University of Technology, Czech Republic
Jurak, Viktor, Brno University of Technology, Czech Republic
Jurík, Michal, E.ON Distribuce, Czech Republic
Jiricka, Jan, E.ON Distribuce a.s., Czech Republic
Drápela, Jiří, Brno University of Technology, Czech Republic
Abstract
The paper presents results from the first application of the new method "Vdip" for an earth fault location. The Vdip method is based on evaluation of the change of negative sequence voltage recorded on LV side of distribution transformers as described in the European patent EP2940483 (Evaluation method for determining of the probability of an asymmetrical fault location in a distribution network and a monitoring system for performing such method). The fault records obtained from fifteen experimental tests in real compensated distribution 22 kV system  were utilized as inputs for Vdip method. The main aim of the paper is to evaluate potential of the Vdip method in real systems and to determine its accuracy in the fault localization during different types of earth faults e.g. intermittent/arcing fault, low-impedance and 200 Ω - 1,2 kΩ resistance earth faults for two configurations of the MV network.
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/293
http://dx.doi.org/10.34890/522
ISSN
2032-9644
ISBN
978-2-9602415-0-1