Performance of Earthing Systems for Different Earth Electrode Configurations

Yunus, Mohamed Shahriman Mohamed; Nor, Normiza Mohamad; Etobi, Nkwa Agbor; Ramar, K.

doi:10.1109/tia.2015.2446958

Cited by 14 publications

(29 citation statements)

References 23 publications

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“…publications [2][3][4][5][6][7][8][9][10][18][19][20][21] where the higher the DC earth resistance, the higher the current-dependent characteristics of earth resistance during the passage of high currents.…”

Section: Effect Of Earth Electrode's Configurationsmentioning

confidence: 99%

“…Much work [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] has been carried out to characterize practical earthing systems under fast-impulse, high-magnitude current conditions. As generally known, experimental investigations on practical earthing systems under high impulse currents can provide more realistic results on the characteristics of earthing systems under high currents, in comparison to laboratory and computational methods.…”

Section: Introductionmentioning

confidence: 99%

“…The following year, Bellaschi [3], completed further tests on 12 earth rods, with impulse currents of 400 A to 15.5 kA. There have been a lot more impulse tests [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], were carried out on practical earthing systems, where tit was found that the 'impulse resistance' values were found to be less than those measured for low voltage, low frequency currents [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. A lot of improvements and suggestions in the impulse test methodology on practical earthing systems can also be seen in the last three decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14]…”

Section: Introductionmentioning

confidence: 99%

“…A lot of improvements and suggestions in the impulse test methodology on practical earthing systems can also be seen in the last three decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Impulse tests have also been carried out on practical earthing systems considering various factors, namely; earth electrode geometry, soil resistivity, impulse polarity and voltage/current magnitudes [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. For the study of grounding performance with the current magnitudes up to 5 kA, limited studies have been carried out on the effect of the earth electrode's configuration.…”

Section: Introductionmentioning

confidence: 99%

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Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions

et al. 2019

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In many publications, the characteristics of practical earthing systems were investigated under conditions involving fast-impulse currents of different magnitudes by field measurements. However, as generally known, in practice the transient current can normally reach several tens of kiloamperes. This paper therefore aimed to investigate the characteristics of a new electrode for grounding systems under high current magnitude conditions, and compare it with steady-state test results. The earth electrodes were installed in low resistivity test media, so that high impulse current magnitudes can be achieved. The effects of impulse polarity and earth electrode’s geometry of a new earth electrode were also quantified under high impulse conditions, at high currents (up to 16 kA).

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Section: Effect Of Earth Electrode's Configurationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions

et al. 2019

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show abstract

“…Extensive investigations on the impulse characteristics of grounding systems have been presented in many research studies [1][2][3][4][5][6][7][8][9][10]. The studies can be classified into three different approaches; field, laboratory and computational methods.…”

Section: Introductionmentioning

confidence: 99%

Performance of Practical Grounding Systems under High Impulse Conditions

et al. 2018

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This paper investigates the factors affecting the impulse characteristics of purposely built grounding systems. We installed 2 m × 2 m grounding systems in four different sites with different soil resistivity values. The effect of impulse polarity on soil characteristics was also investigated for different soil resistivity. A circular ring electrode was used as a return electrode in all four sites. For one of the sites, different configurations of grounding systems were installed to allow the study of the effect of ground electrode configurations on soil characteristics. The aim of this study was to quantify the effects of soil resistivity, impulse polarity, and earth electrode configurations on soil electrical properties under high impulse conditions by field measurements. The new data could be useful in understanding the characteristics of grounding systems in various factors under high impulse conditions. It is hoped that by considering these factors, it can help optimize the design of earthing systems.

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A new design of substation grounding based on electrolytic cathodic protection and on transfer corrosion current

Fang²,

et al. 2021

Electric Power Systems Research

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Performance of Earthing Systems for Different Earth Electrode Configurations

Cited by 14 publications

References 23 publications

Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions

Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions

Performance of Practical Grounding Systems under High Impulse Conditions

A new design of substation grounding based on electrolytic cathodic protection and on transfer corrosion current

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