On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters

The voltage distribution along the non-linear resistance of metal oxide surges is of great importance for their proper operation, since the non-uniform potential distribution results in higher thermal stresses of the varistor discs near the high voltage electrode, leading to a faster ageing of the d...

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Main Authors: Christos A. Christodoulou, Vasiliki Vita, Valeri Mladenov, Lambros Ekonomou
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/11/11/3046
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author Christos A. Christodoulou
Vasiliki Vita
Valeri Mladenov
Lambros Ekonomou
author_facet Christos A. Christodoulou
Vasiliki Vita
Valeri Mladenov
Lambros Ekonomou
author_sort Christos A. Christodoulou
collection DOAJ
description The voltage distribution along the non-linear resistance of metal oxide surges is of great importance for their proper operation, since the non-uniform potential distribution results in higher thermal stresses of the varistor discs near the high voltage electrode, leading to a faster ageing of the discs at the top and, consequently, a downgrade in arrester effectiveness and reliability or even failures. The current work deals with the examination of the voltage distribution along the non-linear resistance of medium voltage metal oxide gapless surge arresters, using an appropriate computer tool, discussing configuration that improve the voltage distribution. Moreover, the impact of various factors on the voltage distribution is examined. The extracted results can contribute to the more efficient design of modern metal oxide gapless surge arresters, in an effort to ensure their reliable operation to protect the electrical equipment against lightning surges.
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spelling doaj.art-ca1712a227db499b80914353007234122022-12-22T04:01:02ZengMDPI AGEnergies1996-10732018-11-011111304610.3390/en11113046en11113046On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge ArrestersChristos A. Christodoulou0Vasiliki Vita1Valeri Mladenov2Lambros Ekonomou3Department of Electrical and Electronic Engineering Educators ASPETE—School of Pedagogical and Technological Education, N. Heraklion, 141 21 Athens, GreeceDepartment of Electrical and Electronic Engineering Educators ASPETE—School of Pedagogical and Technological Education, N. Heraklion, 141 21 Athens, GreeceDepartment of Theoretical Electrical Engineering, Technical University of Sofia, “Kliment Ohridski” Blvd 8, 1000 Sofia, BulgariaDepartment of Electrical and Electronic Engineering Educators ASPETE—School of Pedagogical and Technological Education, N. Heraklion, 141 21 Athens, GreeceThe voltage distribution along the non-linear resistance of metal oxide surges is of great importance for their proper operation, since the non-uniform potential distribution results in higher thermal stresses of the varistor discs near the high voltage electrode, leading to a faster ageing of the discs at the top and, consequently, a downgrade in arrester effectiveness and reliability or even failures. The current work deals with the examination of the voltage distribution along the non-linear resistance of medium voltage metal oxide gapless surge arresters, using an appropriate computer tool, discussing configuration that improve the voltage distribution. Moreover, the impact of various factors on the voltage distribution is examined. The extracted results can contribute to the more efficient design of modern metal oxide gapless surge arresters, in an effort to ensure their reliable operation to protect the electrical equipment against lightning surges.https://www.mdpi.com/1996-1073/11/11/3046surge arresterselectric fieldvoltage distributionvaristor
spellingShingle Christos A. Christodoulou
Vasiliki Vita
Valeri Mladenov
Lambros Ekonomou
On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters
Energies
surge arresters
electric field
voltage distribution
varistor
title On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters
title_full On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters
title_fullStr On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters
title_full_unstemmed On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters
title_short On the Computation of the Voltage Distribution along the Non-Linear Resistor of Gapless Metal Oxide Surge Arresters
title_sort on the computation of the voltage distribution along the non linear resistor of gapless metal oxide surge arresters
topic surge arresters
electric field
voltage distribution
varistor
url https://www.mdpi.com/1996-1073/11/11/3046
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