Open AccessLightning analysis of adjacent grounding systems using multi‐conductor transmission line method
Author(s) -
Jamali Morteza,
Niasati Mohsen,
Jazaeri Mostafa
Publication year - 2020
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2019.0267
Subject(s) - ground , lightning (connector) , conductor , transmission line , lightning strike , electric power transmission , electrical conductor , earthing system , soil resistivity , computer science , engineering , electrical engineering , physics , mathematics , power (physics) , geometry , quantum mechanics
The analysis of adjacent grounding systems under lightning currents which is responsible for many safety problems to human beings and damages to devices is very important. In this study, the behaviours of such grounding grids under lightning conditions which are not well documented in the literature are analysed using the multi‐conductor transmission line method in a two‐layer soil model. To achieve this goal, the expressions related to the study of a single grounding grid extracted from the recent study of the authors are developed to be appropriate to the analysis of adjacent grounding systems under lightning currents. Also, through the representation of the connectivity matrix, the analysis of the adjacent grounding grids with any size and degree of complexity is facilitated. Furthermore, the behaviours of the adjacent grounding grids under different lightning and soil characteristics are examined and some conclusions are derived.