Results 11 to 20 of about 18,806 (286)

Grid-Ground Electrode in Two Layered Non-Homogeneous Ground

open access: yes7th Symposium on Applied Electromagnetics SAEM`18: Conference Proceedings, 2019
In this paper, a procedure including using of the Green’s functions for a point source in multilayered media for the electric scalar potential and the Method of Moments-MoM for analyzing described problem is adopted. The approach provides generating Green’s function of the point source for arbitrary number of homogeneous layers. Also, it is possible to
Nenad Cvetkovic   +3 more
openaire   +2 more sources

Simulation Study on Lightning Impulse Characteristics of Flexible Graphite Composite Grounding Materials Applied to Grounding Grid of Power System

open access: yesFrontiers in Energy Research, 2022
The flexible graphite composite grounding electrode is a non-metallic grounding electrode with good electrical conductivity, corrosion resistance and non-ferromagnetic properties.
Yuanchao Hu   +7 more
doaj   +1 more source

Research on Discharging Current Distribution of Grounding Electrodes

open access: yesIEEE Access, 2019
Grounding electrodes with good current discharging performance can ensure the reliability of power system security. Discharging current is not only the reason for accelerating the corrosion, but also the key indicator of the grounding electrodes ...
Zhanlong Zhang   +5 more
doaj   +1 more source

Research on Earth Resistivity Measuring and Modeling of HVDC Deep-Well Grounding Electrode Sites

open access: yesIEEE Access, 2020
HVDC Deep-well grounding electrode covers a small area, which effectively alleviates the problem of difficulty in selecting the site of grounding electrode.
Maoheng Jing   +7 more
doaj   +1 more source

Grounding System Adequacy of HV/MV Substations in Areas With Reduced Accessibility [PDF]

open access: yes, 2015
The adequacy of grounding systems has to be verified periodically in the operational time. With urban development and buildings growth adjacent to power systems as HV/MV substations, it is very rare to have area around with sufficient accessibility for ...
Farber, Alexander   +4 more
core   +1 more source

Interaction between interconnected and isolated grounding systems: a case study of transferred potentials [PDF]

open access: yes, 2014
The effect caused by ground fault current in a complex system of interacting electrodes is theoretically studied. The calculation applies to a specific case in which a set of interconnected electrodes, which are part of a grounding ...
Asensio Madrid, Gabriel   +5 more
core   +2 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   +1 more source

Effect of Impulse Polarity on a New Grounding Device with Spike Rods (GDSR)

open access: yesEnergies, 2020
The characterizations of grounding systems subjected to high impulse conditions are known to be dependent on the polarity, current to peak time and discharge time, as well as the electrical properties of the soil, and the grounding electrodes themselves.
Abdul Wali Abdul Ali   +2 more
doaj   +1 more source

Environmental effects on the performance of electrical grounding systems [PDF]

open access: yes, 2013
Effects of surrounding environment of grounding electrode locations on the performance of overall grounding system has been studied. Copper rods were buried at 25 different locations with various environmental settings and their respective variations in ...
Ab Kadir, Mohd Zainal Abidin   +3 more
core   +1 more source

Impulse Efficiency of Ground Electrodes [PDF]

open access: yesIEEE Transactions on Power Delivery, 2009
The lightning current waveform has a major influence on the dynamic performance of ground electrodes. While high lightning current intensity improves the dynamic grounding performance due to ionization of the soil, very fast fronted pulses might worsen the performance in case of inductive behavior.
openaire   +1 more source

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