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Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines

Author

Listed:
  • Fabio Massimo Gatta

    (Department of Astronautics, Electric and Energy Engineering, “Sapienza” University of Rome, 00184 Rome, Italy)

  • Alberto Geri

    (Department of Astronautics, Electric and Energy Engineering, “Sapienza” University of Rome, 00184 Rome, Italy)

  • Stefano Lauria

    (Department of Astronautics, Electric and Energy Engineering, “Sapienza” University of Rome, 00184 Rome, Italy)

  • Marco Maccioni

    (Department of Astronautics, Electric and Energy Engineering, “Sapienza” University of Rome, 00184 Rome, Italy)

  • Francesco Palone

    (Terna S.p.A., 00156 Rome, Italy)

Abstract

A significant majority of overhead transmission lines’ (OHLs) outages is due to backflashovers caused by direct lightning strikes: the realistic assessment of the lightning performance is thus an important task. The paper presents the analysis of the lightning performance of an existing 150 kV Italian OHL, namely, its backflashover rate (BFOR), carried out by means of an ATP-EMTP-based Monte Carlo procedure. Among other features, the procedure makes use of a simplified pi-circuit for line towers’ grounding system, allowing a very accurate reproduction of transient behaviours at a very low computational cost. Tower grounding design modifications, aimed at improving the OHL lightning performance, are also proposed and discussed.

Suggested Citation

  • Fabio Massimo Gatta & Alberto Geri & Stefano Lauria & Marco Maccioni & Francesco Palone, 2020. "Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines," Energies, MDPI, vol. 13(9), pages 1-22, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:9:p:2142-:d:352550
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    References listed on IDEAS

    as
    1. Fabio Massimo Gatta & Alberto Geri & Stefano Lauria & Marco Maccioni, 2016. "Monte Carlo Evaluation of the Impact of Subsequent Strokes on Backflashover Rate," Energies, MDPI, vol. 9(3), pages 1-14, February.
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    Cited by:

    1. Erika Stracqualursi & Giuseppe Pelliccione & Salvatore Celozzi & Rodolfo Araneo, 2022. "Tower Models for Power Systems Transients: A Review," Energies, MDPI, vol. 15(13), pages 1-40, July.

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