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hamidreza Karami

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId: 24466526800
HIndex:
Faculty: Faculty of Engineering
Address:
Phone: 0818292505-216

Research

Title
Grounding Resistance of a Hemispheric Electrode Located on the Top of a Finite-Height, Cone-Shaped Mountain
Type
JournalPaper
Keywords
Grounding , Resistance , Electrodes , Soil , Geometry , Electric potential , Lightning protection
Year
2020
Journal IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
DOI
Researchers Antonio Šunjerga ، Marcos RubinStein ، Dragan Poljak ، hamidreza Karami ، Farhad Rachidi

Abstract

In this letter, we present an analytical solution for the resistance of a hemispheric grounding electrode located on the top of a mountain. The mountain is modeled as a truncated cone with a finite height. Recently, a closed-form solution for the grounding resistance was derived first for a hemispheric electrode on top of a cone and later for a more realistic case of a truncated cone with a flat region at its top. The height of the cone was considered infinite in those studies. Here, we extend these studies for the case of a truncated cone with finite height. The analytical solution is compared with numerical simulations and the results agree reasonably well.