Staff Members - Benha University
Analysis and Mitigation of Ground Grid Lightning Potential Rise
Transactions on Electrical and Electronic Materials, The Korean Institute of Electrical and Electronic Material Engineers 2020, Transactions on Electrical and Electronic Materials, Online ISSN 2092-7592, Springer, February 2020. • 2020
Publication Information
Authors
Ahmed Taher, · Abdelrahman Said, · Tamer Eliyan, · Abdelsalam Hafez
Keywords
Keywords Grid design · Lightning potential rise · Transient analysis · Mitigation methods
Journal
Transactions on Electrical and Electronic Materials, The Korean Institute of Electrical and Electronic Material Engineers 2020, Transactions on Electrical and Electronic Materials, Online ISSN 2092-7592, Springer, February 2020.
Publisher
The Korean Institute of Electrical and Electronic Material Engineers 2020, Transactions on Electrical and Electronic Materials, Online ISSN 2092-7592, Springer, February 2020.
Volume
Not Available
Issue
Online ISSN 2092-7592, Print ISSN 1229-7607
Pages
Not Available
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
Abstract
Grid design depends mainly on bringing grounding resistance, mesh voltage, and step voltage below tolerable limits when
subjected to any ground fault. But, it should be noticed that the grid performance has to be tested when subjected to lightning
stroke. The performance of the grid under impulse current differs than that of under power–frequency fault. In this paper
ATP-EMTP software is used to analyze the performance of the ground grid when subjected to lightning stroke. Different
methods are suggested to mitigate the lightning overvoltage, all of these methods depend mainly on modifying the design by
adding more conductors or rods at specific places. The case study under consideration is Al-Mostakbal substation 220/22 kV
which is located in Al-Mostakbal city, Cairo, Egypt
Grid design depends mainly on bringing grounding resistance, mesh voltage, and step voltage below tolerable limits when
subjected to any ground fault. But, it should be noticed that the grid performance has to be tested when subjected to lightning
stroke. The performance of the grid under impulse current differs than that of under power–frequency fault. In this paper
ATP-EMTP software is used to analyze the performance of the ground grid when subjected to lightning stroke. Different
methods are suggested to mitigate the lightning overvoltage, all of these methods depend mainly on modifying the design by
adding more conductors or rods at specific places. The case study under consideration is Al-Mostakbal substation 220/22 kV
which is located in Al-Mostakbal city, Cairo, Egypt