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Generally, the flow of a lightning impulse current from a grounding electrode into ground is a very complicated process determined by many factors. In order to analyze the mechanism of the impulse current dissipating in the earth from grounding electrode, the experiments that had carried out by other authors almost used a single horizontal grounding wire or vertical grounding rod for sake of simplicity...
When impulse currents are injected into grounding electrodes and dissipate in the earth, the axial current distribution of the grounding electrodes will change with different electrode structures. In order to analyze the distribution law, using Rogowski coil as a current sensor, impulse simulation experiment is designed and performed on the grounding electrodes with various structures. Basing on the...
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