Results 21 to 30 of about 664 (264)
IET Science, Measurement & Technology, 2021 Due to the impedance characteristic of conductor, the ground potential rise is different within grounding grid when impulse current is injected. When staff touches objects with different GPR at the same time, the GPD will be applied to human body ...
Chun Li +5 more
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Characteristics of Two Ground Grid Potentials After a Triggered Lightning Stroke
IEEE Access, 2020 It has been determined that the discharge of lightning current to ground through grounding grid results in high potential at the grounding grid and other nearby grounding grids, which is very destructive.
Xu Yan +5 more
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Effects of impulse polarity on grounding systems
, 2020 In earlier paper, experimental results of 1-rod, 2-rod and 3-rod electrodes under high magnitude impulse currents of positive polarity were presented. In the paper, it was noticed that lower reduction of impulse resistance from its steady-state ground ...
Ahmad, Nurul Nadia +5 more
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Journal of Electrical Systems and Information Technology, 2023 The grounding system of an electrical substation provides safety to both operator and equipment. The lightning current waveform has a major influence on the dynamic performance of ground electrodes.
Kaushal Pratap Sengar +1 more
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Analysis of Zinc Oxide (ZnO) Surge Arrester Connected to Various Ground Electrodes
Energies, 2021 This paper presents impulse tests results on a zinc oxide (ZnO) surge arrester connected to four ground electrodes, with its resistance values ranging from 17 Ω to 104 Ω.
Hanis Hamizah Hizamul-Din +1 more
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Characteristics of the Flexible Graphite Grounding Material and its Engineering Application
IEEE Access, 2019 In order to meet the requirements of corrosion resistance of the grounding material and thermal stability of the grounding material of the transmission line towers, under the condition of power frequency current and high-frequency lightning current ...
Daochun Huang +4 more
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Comparison of two simple high-frequency earthing electrodes [PDF]
, 2004 Lightning strikes on high-voltage transmission lines may create hazardous touch potentials on adjacent substation equipment and damage to control equipment.
Pilling, N., Stoll, R.L., Chen, G.
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Energies, 2021 Ionisation can occur in the soil when high impulse currents are subjected to grounding systems. This occurrence is generated by a difference in the dielectric strength value between the soil and air voids.
Hanis Hamizah Hizamul-Din +3 more
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Influence of Nonlinear Processes in Soils on the Impulse Resistance of Grounding Electrodes
Journal of Physics: Conference Series, 2021 Abstract The article presents the results of laboratory studies of nonlinear processes during the flow of pulsed currents into moistened soil from electrodes modelling grounding devices of electric power facilities. A methodology for studying the pulse parameters of grounding devices has been developed and a laboratory stand and a ...
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Optimization of impulse resistance reduction for tower grounding device of transmission line
Journal of Physics: Conference Series, 2020 Abstract When the lightning strikes the tower, the lightning current is discharged into the ground through the tower grounding device. The magnitude of the impulse earthed resistance of the tower grounding device determines the lightning discharge capacity of the tower. Therefore, the tower grounding device directly affects the lightning
Sixiang Chen +5 more
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