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Simulation and Experiment of Substation Grounding Resistance Measurement Based on Pseudorandom Signal [PDF]

open access: yesSensors, 2022
The grounding resistance of a substation is an important parameter that should be designed within a reasonable range to prevent operational accidents from damaging electrical equipment due to overvoltage and ensure the safe operation of an electrical ...
Qingming Duan   +3 more
doaj   +3 more sources

Helix grounding electrode with good grounding performance [PDF]

open access: yesMATEC Web of Conferences, 2019
Grounding electrode is used for discharging current and ensure the safe and stable operation of electrical equipment. Grounding performance of grounding electrode will degradation with limited installation space.
Zhang Zhanlong   +4 more
doaj   +4 more sources

Analysis of the effect of explosion grounding electrode on grounding resistance reduction

open access: yesThe Journal of Engineering, 2019
Developing cracks in the soil by means of explosions in the holes, as is called the explosion grounding electrode in this study, is a very effective way to reduce the grounding resistance in the area with high resistivity soil.
Yongli Wang   +4 more
doaj   +2 more sources

Simulation and Experiment Analysis of 10 kV Flexible Grounding Device

open access: yesInformation, 2021
The traditional 10 kV distribution network grounding system has some disadvantages, such as small grounding current and poor arc extinguishing effect, thus, hindering the detection of high-resistance grounding fault.
Mengxuan Liu, Chi Zhang, Kangli Liu
doaj   +2 more sources

Tower impulse grounding resistance measurement based on multiple frequency impedance

open access: yesIET Generation, Transmission & Distribution, 2023
Tower impulse grounding resistance is important for judging the lightning protection performance of transmission lines. Therefore, it is significant to accurately measure the tower impulse grounding resistance. Existing measurement methods mainly contain
Yihua Dan   +5 more
doaj   +2 more sources

COMPARATIVE ANALYSIS OF GROUNDING RESISTANCE VALUE IN SOIL AND SEPTICTANK

open access: yesTeknik, 2012
The aim of grounding system to protect of electrical equipment and instrumentation system and peopletogether. The lightning stroke near the strucutre of building can damage of equipment and instrumentationsystem.
Abdul Syakur   +2 more
doaj   +1 more source

An Estimator of the Resistance of Large Grounding Electrodes from Its Geometric Characterization

open access: yesApplied Sciences, 2020
An estimator of the grounding resistance of large extension electrodes from the total length and geometric properties of the electrode is proposed in this work. The approximation is valid for electrodes buried in a soil that can be assumed as homogeneous
Gregorio Denche   +3 more
doaj   +2 more sources

Safety Analysis of Grounding Resistance with Depth of Water for Floating PVs

open access: yesEnergies, 2017
Underwater grounding methods could be applied in deep water for grounding a floating PV (photovoltaic) system. However, the depth at which the electrodes should be located is a controversial subject.
Jae Woo Ko   +9 more
doaj   +3 more sources

Impulse Grounding Resistance Reduction Measures for Transmission Line Towers in Desert, Gobi, and Barren Land Regions

open access: yesEnergies
The high soil resistivity in desert, Gobi, and barren land regions limits the lightning current dissipation capability of conventional needle-type grounding electrodes, thereby increasing the lightning-related risk to transmission lines.
Changzheng Deng, Jian Huang, Zechuan Fan
doaj   +2 more sources

An Estimate of the Uncertainty in the Grounding Resistance of Electrodes Buried in Two-Layered Soils with Non-Flat Surface

open access: yesEnergies, 2017
The influence of the irregular surface of a multi-layered soil on the estimation of the ground resistance of a complex electrode is studied. The electrode is placed in the first layer while the irregular surface is treated as the interface of an ...
Eduardo Faleiro   +2 more
doaj   +2 more sources

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