The soil ionization gradient associated with discharge of high currents into concentrated electrodes

1994 ◽  
Vol 9 (3) ◽  
pp. 1669-1677 ◽  
Author(s):  
A.M. Mousa
Keyword(s):  
Soil Ionization ◽  
Ionization Gradient

Methodologies for determination of soil ionization gradient

2012 ◽  
Vol 70 (5) ◽  
pp. 457-461 ◽  
Author(s):  
Fani E. Asimakopoulou ◽  
Ioannis F. Gonos ◽  
Ioannis A. Stathopulos
Keyword(s):  
Soil Ionization ◽  
Ionization Gradient

scholarly journals SOIL IONIZATION DUE TO HIGH PULSE TRANSIENT CURRENTS LEAKED BY EARTH ELECTRODES

2009 ◽  
Vol 14 ◽  
pp. 1-21 ◽  
Author(s):  
Guido Ala ◽  
Maria Luisa Di Silvestre ◽  
Fabio Viola ◽  
Elisa Francomano
Keyword(s):  
Transient Currents ◽  
High Pulse ◽  
Soil Ionization

scholarly journals Transient impedance of grounding system with impulse superimposed sinewave

2021 ◽  
Vol 1 (1) ◽  
pp. 8-12
Author(s):  
Sherif Ghoneim ◽  
Ahdab Elmorshedy ◽  
Rabah Amer
Keyword(s):  
System Configuration ◽  
System Operation ◽  
Grounding System ◽  
Several Variables ◽  
Wire Conductor ◽  
Lightning Impulse ◽  
In Series ◽  
Grid Side ◽  
Soil Ionization ◽  
Impulse Current

Investigating the transient performance of grounding systems subject to lightning (impulse or impulse superimposed sinewave) is valuable for protecting the power system and maintaining the system operation. In this work, the grounding system's impedance is computed when an impulse superimposed sinewave is applied to the grounding grid's proposed lumped circuit and grounding system can be simulated as an inductance in series with resistance, and all of them are in parallel with capacitance based on Thione's assumption. Several variables were investigated to study their effects on the grounding system's behavior. The variables were the soil resistivity, soil permittivity, main wire length, grid conductor radius, grid side length, grid configurationand its mesh number. The grounding system configuration  varied between square and rectangular shapes, which connects to the protecting rod via the main wire conductor. A 3.69 kA peak of impulse current was applied to avoid soil ionization. The results indicated the performance of the grounding system when subjecting to impulse current.

scholarly journals Analysis of Soil Ionization Behaviors under Impulse Currents

2009 ◽  
Vol 4 (1) ◽  
pp. 98-105 ◽  
Author(s):  
Bok-Hee Lee ◽  
Geon-Hun Park ◽  
Hoe-Gu Kim ◽  
Kyu-Sun Lee
Keyword(s):  
Soil Ionization
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