Experimental investigations on multi-end fault location system based on current traveling waves

A. Elhaffar, N. I. Elkalashy, M. Lehtonen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Traveling Waves Recorders (TWR) are used to accurately find the location of different faults in transmission networks. These recorders are installed at few substation buses where current traveling waves can be extracted. The recorded signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the traveling wave has been calculated considering Dijkstra algorithm to select the nearest TWR to the faulted line. The Wavelet Transform is used to find the highest spectral energy of the frequency band of the traveling wave signals. Thus, the Wavelet Transform enhances the traveling wave fault location. The current transformers (CT) are modeled and experimentally verified to represent the traveling wave interaction with the CT. The secondary wiring from the CT secondary winding to TWR has also some effect on the measured traveling wave signal which motivates practical issues associated with measuring the arrival times. Correction factors are derived to monitor high frequency current traveling wave signals. Validation of fault location is examined by ATP/EMTP simulations for typical 400 kV power system faults.

Original languageEnglish
Title of host publication2007 IEEE Lausanne POWERTECH, Proceedings
Pages1141-1146
Number of pages6
DOIs
Publication statusPublished - 2007
Event2007 IEEE Lausanne POWERTECH - Lausanne, Switzerland
Duration: Jul 1 2007Jul 5 2007

Other

Other2007 IEEE Lausanne POWERTECH
CountrySwitzerland
CityLausanne
Period7/1/077/5/07

Keywords

  • Fault location
  • Modal analysis
  • Multi end method
  • Single phase to ground fault
  • Traveling waves
  • Wavelet transform

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Elhaffar, A., Elkalashy, N. I., & Lehtonen, M. (2007). Experimental investigations on multi-end fault location system based on current traveling waves. In 2007 IEEE Lausanne POWERTECH, Proceedings (pp. 1141-1146). [4538476] https://doi.org/10.1109/PCT.2007.4538476