Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages

Evaluation of attractive areas of high- and ultra-high voltage power transmission lines to direct lightning strokes is based on modeling of propagating progress of the lightning leader approaching the transmission line. The aim of the modeling is to determine the effectiveness of lightning protectio...

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Autores principales:	Michał Molas, Marcin Szewczyk
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	long laboratory spark electrical discharge in air lightning impulse switching impulse discharge channel spark trajectory Technology T
Acceso en línea:	https://doaj.org/article/e9b896626a8c479bbc2633e8238e38d0
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spelling	oai:doaj.org-article:e9b896626a8c479bbc2633e8238e38d02021-11-11T16:07:32ZExperimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages10.3390/en142174091996-1073https://doaj.org/article/e9b896626a8c479bbc2633e8238e38d02021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7409https://doaj.org/toc/1996-1073Evaluation of attractive areas of high- and ultra-high voltage power transmission lines to direct lightning strokes is based on modeling of propagating progress of the lightning leader approaching the transmission line. The aim of the modeling is to determine the effectiveness of lightning protection for a given line design. The statistical models are currently being developed to extend the conventional deterministic models by embracing the randomness of the discharge channel in space and hence to reproduce the statistical distribution of the striking points. These models require experimental data for understanding of the lightning leader development process and to validate the model across the measurement data. This paper reports on the measured trajectories of discharge channels of long laboratory sparks in various high voltage laboratory arrangements. The sparks were initiated by switching and lightning impulses with peak values ranging from 1200 kV to 3364 kV of positive and negative polarity for two types of high-voltage electrode systems (sphere-sphere and sphere-plane), arranged at distances of 3.3 m and 5.5 m from each other. Statistical distributions of angles describing trajectory of discharge channels in space are reported for a total number of 540 recorded discharges. The results can serve as reference measurement data to develop and evaluate the accuracy of simulation models incorporating statistical nature of the lightning leader development process.Michał MolasMarcin SzewczykMDPI AGarticlelong laboratory sparkelectrical discharge in airlightning impulseswitching impulsedischarge channelspark trajectoryTechnologyTENEnergies, Vol 14, Iss 7409, p 7409 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	long laboratory spark electrical discharge in air lightning impulse switching impulse discharge channel spark trajectory Technology T
spellingShingle	long laboratory spark electrical discharge in air lightning impulse switching impulse discharge channel spark trajectory Technology T Michał Molas Marcin Szewczyk Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages
description	Evaluation of attractive areas of high- and ultra-high voltage power transmission lines to direct lightning strokes is based on modeling of propagating progress of the lightning leader approaching the transmission line. The aim of the modeling is to determine the effectiveness of lightning protection for a given line design. The statistical models are currently being developed to extend the conventional deterministic models by embracing the randomness of the discharge channel in space and hence to reproduce the statistical distribution of the striking points. These models require experimental data for understanding of the lightning leader development process and to validate the model across the measurement data. This paper reports on the measured trajectories of discharge channels of long laboratory sparks in various high voltage laboratory arrangements. The sparks were initiated by switching and lightning impulses with peak values ranging from 1200 kV to 3364 kV of positive and negative polarity for two types of high-voltage electrode systems (sphere-sphere and sphere-plane), arranged at distances of 3.3 m and 5.5 m from each other. Statistical distributions of angles describing trajectory of discharge channels in space are reported for a total number of 540 recorded discharges. The results can serve as reference measurement data to develop and evaluate the accuracy of simulation models incorporating statistical nature of the lightning leader development process.
format	article
author	Michał Molas Marcin Szewczyk
author_facet	Michał Molas Marcin Szewczyk
author_sort	Michał Molas
title	Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages
title_short	Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages
title_full	Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages
title_fullStr	Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages
title_full_unstemmed	Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages
title_sort	experimental evaluation of 3d tortuosity of long laboratory spark trajectory for sphere-sphere and sphere-plane discharges under lightning and switching impulse voltages
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e9b896626a8c479bbc2633e8238e38d0
work_keys_str_mv	AT michałmolas experimentalevaluationof3dtortuosityoflonglaboratorysparktrajectoryforspheresphereandsphereplanedischargesunderlightningandswitchingimpulsevoltages AT marcinszewczyk experimentalevaluationof3dtortuosityoflonglaboratorysparktrajectoryforspheresphereandsphereplanedischargesunderlightningandswitchingimpulsevoltages
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Experimental Evaluation of 3D Tortuosity of Long Laboratory Spark Trajectory for Sphere-Sphere and Sphere-Plane Discharges under Lightning and Switching Impulse Voltages

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