Computation of Peak Lightning-Induced Voltages Due to the Typical First and Subsequent Strokes Considering High Ground Resistivity

Rizk, Mohammad E. M.; Mahmood, Farhan; Lehtonen, Matti; Badran, Ebrahim A.; Abdel-Rahman, Mansour H.

doi:10.1109/tpwrd.2016.2555856

Cited by 24 publications

(4 citation statements)

References 35 publications

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“…Considering the above, it can be concluded that the location of the line, the category of the receivers, and the design peculiarities of the line are important for the selection of the method of overvoltage protection of power grids. Determining the parameters of the expected atmospheric surges is important in the context of the selection of surge protection devices [11,12]. There are also different methods to coordinate overhead line insulation and surge protection devices [13,14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Spark Gap Parameters on the Strength of the Surge Protection Device and the Method of Its Selection

Borecki

2023

Energies

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The paper aims to analyze the factors affecting the parameters of surge protection devices with a spark gap and assess the impact of changing these parameters on the level of overhead line strength. For this purpose, this paper contains the results of tests that show the assessment of the impact of changing the spark gap parameters on the voltage–time characteristics of selected protection devices in the range of negative and positive polarity. The paper presents how the change in the parameters of the component element of the surge protection device, which is the spark gap, may affect the selection of the line surge protection method. In addition, the paper presents a method of assessing the strength of an overhead line, taking into account the case of installing surge protection devices at the insulators. The implementation of these tests supports further activities aimed at the actual values of parameters affecting the strength of overhead lines.

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Section: Introductionmentioning

confidence: 99%

Influence of Spark Gap Parameters on the Strength of the Surge Protection Device and the Method of Its Selection

Borecki

2023

Energies

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“…O presente trabalho visa, com base da teoria proposta por Rusck (1957), estendida por Paulino (1994) e através das equações de pico de tensão induzida apresentadas em Paulino (2019), analisar o impacto do aterramento elétrico no desempenho de linhas de distribuição frente a descargas indiretas. É utilizada como abordagem para estimar a tensão induzida a proposta de Paulino (2019) que, além de ser de simples implementação e atualizada, tem demonstrado boa precisão (para solos com resistividade até 1.000 Ω.m) e excelente desempenho computacional (tempo computacional reduzido) quando comparada com modelos mais robustos como o FDTD Rizk et al (2017).…”

Section: Introdu ç ãOunclassified

Impacto da Resistência de Aterramento na Análise de Desligamentos por Tensões Induzidas Devido a Descargas Atmosféricas em Linhas de Distribuição

Almeida

Moura

Schroeder

et al. 2022

Proceedings IX Simpósio Brasileiro De Sistemas Elétricos

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The assessment of distribution systems performance is a key factor to guarantee the continuity of energy supply. Hence, understanding the impacts that lightning can generate in this type of system is a matter of relevant importance. Therefore, this work aims to investigate the impact of grounding resistance on the distribution line lightning performance considering induced overvoltages. The present work is based on the theory proposed by Sune Rusck and later extended by J. O. Paulino. For this analysis, the Monte Carlo Method was also used in a computational routine to estimate the number of expected shutdowns of a distribution line. Thus, simulations were carried out with different values of grounding resistance and the number of shutdowns was calculated as a function of these values. According to the results, the value of the grounding resistance significantly impacts the expected number of shutdowns for a given distribution line. Resumo: A avaliação do desempenho de sistemas de distribuição é um fator primordial para garantir a continuidade do fornecimento de energia. Dessa maneira, compreender os impactos que as descargas atmosféricas podem gerar nesse tipo de sistema é um assunto de importância relevante. Diante disso, esse trabalho tem como objetivo investigar o impacto da resistência de aterramento no desempenho de linhas de distribuição frente as tensões induzidas. O presente trabalho é baseado na teoria proposta por Sune Rusck e que, posteriormente, estendeu-se por J. O. Paulino. Para tal análise, utilizou-se também o Método de Monte Carlo em uma rotina computacional para estimar o número de desligamentos de uma linha de distribuição. Desse modo, foram feitas simulações por meio de uma rotina computacional implementada na linguagem de programação Julia com diversos valores de resistência de aterramento e calculado o número de desligamentos em função desses valores. Segundo os resultados, o valor da resistência de aterramento impacta de maneira sensível no número esperado de desligamentos de uma determinada linha de distribuição.

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“…For the selection of an appropriate insulation level and the design of an effective protection scheme in medium voltage lines, the assessment of lightning flashover rate is unavoidable [6,7]. Because lightning stroke variables are stochastic in nature, peak lightning-induced overvoltage's (LIVs) also vary wildly.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Surge Voltages on the Overhead Lines due to Direct and Indirect Lightning Impulse

Lalith¹,

Sridhar²,

Gatla³

et al. 2021

JESA

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This paper is devoted to describe how surge magnitudes are calculated and how do we use this data in order to determine the ageing of insulation on the transmission line poles so that we can replace the insulation in pre fault time, based on its condition. The main object of this report is to design algorithm of implementation of SCADA in the transmission line system to identify insulation ageing factor. In order to identify the magnitude of voltage due to direct lightning source, we have some formulae which provides the approximate value. For the magnitude value due to indirect lightning strokes, we use two methods namely RBF-FDTD method which uses artificial neural network function in order to study the detailed concept of coupling between field to transmission lines and the other method is the modelling of simulation system in which the coupling system approximations are taken. This paper also describes about the calculation of outage rate and its Geometrical analysis.

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Computation of Peak Lightning-Induced Voltages Due to the Typical First and Subsequent Strokes Considering High Ground Resistivity

Cited by 24 publications

References 35 publications

Influence of Spark Gap Parameters on the Strength of the Surge Protection Device and the Method of Its Selection

Influence of Spark Gap Parameters on the Strength of the Surge Protection Device and the Method of Its Selection

Impacto da Resistência de Aterramento na Análise de Desligamentos por Tensões Induzidas Devido a Descargas Atmosféricas em Linhas de Distribuição

Evaluation of Surge Voltages on the Overhead Lines due to Direct and Indirect Lightning Impulse

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