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Volume 13
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10.3390/en13092142
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Article

Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines †

by
Fabio Massimo Gatta
1,
Alberto Geri
1,
Stefano Lauria
1,
Marco Maccioni
1,* and
Francesco Palone
2
1
Department of Astronautics, Electric and Energy Engineering, “Sapienza” University of Rome, 00184 Rome, Italy
2
Terna S.p.A., 00156 Rome, Italy
*
Author to whom correspondence should be addressed.
†
This work is an extension of the authors’ paper presented at IEEE EEEIC 2019 Genoa, Italy, 11–14 June 2019, and is selected for publication in Energies.
Energies 2020, 13(9), 2142; https://doi.org/10.3390/en13092142
Submission received: 27 February 2020 / Revised: 11 April 2020 / Accepted: 27 April 2020 / Published: 30 April 2020
(This article belongs to the Special Issue Selected Papers from the 19th IEEE International Conference on Environment and Electrical Engineering (19th IEEE EEEIC))
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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.
Keywords: sub-transmission lines; lightning performance; backflashover rate; grounding system; Monte Carlo sub-transmission lines; lightning performance; backflashover rate; grounding system; Monte Carlo

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MDPI and ACS Style

Gatta, F.M.; Geri, A.; Lauria, S.; Maccioni, M.; Palone, F. Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines. Energies 2020, 13, 2142. https://doi.org/10.3390/en13092142

AMA Style

Gatta FM, Geri A, Lauria S, Maccioni M, Palone F. Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines. Energies. 2020; 13(9):2142. https://doi.org/10.3390/en13092142

Chicago/Turabian Style

Gatta, Fabio Massimo, Alberto Geri, Stefano Lauria, Marco Maccioni, and Francesco Palone. 2020. "Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines" Energies 13, no. 9: 2142. https://doi.org/10.3390/en13092142

APA Style

Gatta, F. M., Geri, A., Lauria, S., Maccioni, M., & Palone, F. (2020). Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines. Energies, 13(9), 2142. https://doi.org/10.3390/en13092142

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