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Saeedreza Ostadzadeh

Saeedreza Ostadzadeh

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-9463-5642
Education: PhD.
ScopusId: 15065733900
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Comprehensive formulae for effective length of multiple grounding electrodes considering different aspects of soils: Simplified multiconductor transmission line-intelligent water drop approach
Type
JournalPaper
Keywords
dispersion, grounding electrode, ionization, MTL, two-layer soil
Year
2020
Journal international journal of numerical modelling electronic networks devices and fields
DOI
Researchers Seyyed sajjad Sajjadi ، Vahid Aghajani ، Saeedreza Ostadzadeh

Abstract

In this paper, an approximate modeling approach called simplified multiconductor transmission line model (simplified MTL) is proposed for transient analyses of multiple grounding electrodes. Since this approach is in the frequency domain, the effect of soil dispersion (frequency variation of soil electrical parameters) is easily incorporated. In addition, the soil ionization effect is treated as gradually increasing radius of the electrode. With the use of this approach, predicting formulae for effective length of multiple grounding electrodes considering both ionization and dispersion are proposed for the first time. Finally, combining the extracted formulae with the apparent resistivity in two-layer soils, effective length in such soils is easily predicted.