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

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

doi:10.1109/PCT.2007.4538476

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

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

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2007 IEEE Lausanne POWERTECH, Proceedings
Pages	1141-1146
Number of pages	6
DOIs	https://doi.org/10.1109/PCT.2007.4538476
Publication status	Published - 2007
Event	2007 IEEE Lausanne POWERTECH - Lausanne, Switzerland Duration: Jul 1 2007 → Jul 5 2007

Other

Other	2007 IEEE Lausanne POWERTECH
Country	Switzerland
City	Lausanne
Period	7/1/07 → 7/5/07

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

@inproceedings{ebd65ffdd548407e9ef609c7d297c95b,

title = "Experimental investigations on multi-end fault location system based on current traveling waves",

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.",

keywords = "Fault location, Modal analysis, Multi end method, Single phase to ground fault, Traveling waves, Wavelet transform",

author = "A. Elhaffar and Elkalashy, {N. I.} and M. Lehtonen",

year = "2007",

doi = "10.1109/PCT.2007.4538476",

language = "English",

isbn = "9781424421909",

pages = "1141--1146",

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note = "2007 IEEE Lausanne POWERTECH ; Conference date: 01-07-2007 Through 05-07-2007",

}

TY - GEN

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AU - Elhaffar, A.

AU - Elkalashy, N. I.

AU - Lehtonen, M.

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

KW - Fault location

KW - Modal analysis

KW - Multi end method

KW - Single phase to ground fault

KW - Traveling waves

KW - Wavelet transform

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