Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil

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

Abstract

The paper analyzes the amplitude-frequency spectra of zero-sequence current in the network with neutral grounding through Peterson-coil under transient earth faults. As the assumed equivalent circuit contains elements with linear current-voltage characteristic, harmonic components of the spectrum are calculated separately for discharge current of the faulted phase, charge current of the unfaulted phases and excess charge drain current followed by the arc blowout. The resulting current spectra are calculated given that current on the faulted line at all stages of transient earth fault flow in the same direction. However, on the unfaulted line drain current flows in the opposite direction to discharge and charge current. We established that in the spectrum of zero-sequence current under transient earth faults the highest amplitude refers to harmonics at frequency near to the frequency of excess charge drain current which, in turn, is near to commercial frequency. With respect to this frequency, in amplitude-frequency spectra we can distinguish two significant areas. At frequency lower than commercial frequency, harmonic amplitudes on the faulted line exceed the harmonic amplitudes on the unfaulted line. At frequency higher than commercial frequency on the contrary: harmonic amplitudes on the unfaulted line exceed harmonic amplitudes on the faulted line. Therefore, as a sign of the faulted line we suggest using harmonic level at frequency lower than commercial frequency.

Original languageEnglish
Title of host publication2016 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages93-97
Number of pages5
ISBN (Electronic)9781467369428
DOIs
Publication statusPublished - 17 May 2016
Event3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016 - Beirut, Lebanon
Duration: 21 Apr 201623 Apr 2016

Conference

Conference3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016
CountryLebanon
CityBeirut
Period21.4.1623.4.16

Fingerprint

Drain current
Electric grounding
Earth (planet)
Current voltage characteristics
Equivalent circuits

Keywords

  • amplitude-frequency spectra
  • Peterson-coil
  • transient earth fault
  • zero-sequence current

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Moldovanova, E. A., Vainshtein, R. A., & Shestakova, V. V. (2016). Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil. In 2016 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016 (pp. 93-97). [7470772] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EECEA.2016.7470772

Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil. / Moldovanova, Evgeniia Alexandrovna; Vainshtein, R. A.; Shestakova, V. V.

2016 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 93-97 7470772.

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

Moldovanova, EA, Vainshtein, RA & Shestakova, VV 2016, Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil. in 2016 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016., 7470772, Institute of Electrical and Electronics Engineers Inc., pp. 93-97, 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016, Beirut, Lebanon, 21.4.16. https://doi.org/10.1109/EECEA.2016.7470772
Moldovanova EA, Vainshtein RA, Shestakova VV. Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil. In 2016 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 93-97. 7470772 https://doi.org/10.1109/EECEA.2016.7470772
Moldovanova, Evgeniia Alexandrovna ; Vainshtein, R. A. ; Shestakova, V. V. / Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil. 2016 3rd International Conference on Electrical, Electronics, Computer Engineering and their Applications, EECEA 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 93-97
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AB - The paper analyzes the amplitude-frequency spectra of zero-sequence current in the network with neutral grounding through Peterson-coil under transient earth faults. As the assumed equivalent circuit contains elements with linear current-voltage characteristic, harmonic components of the spectrum are calculated separately for discharge current of the faulted phase, charge current of the unfaulted phases and excess charge drain current followed by the arc blowout. The resulting current spectra are calculated given that current on the faulted line at all stages of transient earth fault flow in the same direction. However, on the unfaulted line drain current flows in the opposite direction to discharge and charge current. We established that in the spectrum of zero-sequence current under transient earth faults the highest amplitude refers to harmonics at frequency near to the frequency of excess charge drain current which, in turn, is near to commercial frequency. With respect to this frequency, in amplitude-frequency spectra we can distinguish two significant areas. At frequency lower than commercial frequency, harmonic amplitudes on the faulted line exceed the harmonic amplitudes on the unfaulted line. At frequency higher than commercial frequency on the contrary: harmonic amplitudes on the unfaulted line exceed harmonic amplitudes on the faulted line. Therefore, as a sign of the faulted line we suggest using harmonic level at frequency lower than commercial frequency.

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