Influence of Grounding Material’s Property on the Impulse Grounding Resistance of Grounding Grids

DOI

10.2991/iceem-15.2015.1How to use a DOI?

Keywords

component; grounding grid; over-voltage; material properties; impulse grounding resistance; moment method

Abstract

The conductor material properties such as resistivity and relative permeability have great influence on impulse grounding resistance of grounding grids in regular dimensions. The intensity of the influence is also different under different soil conditions. By building a 1:1 grounding model and using moment method, the paper gets a huge amount of numerical calculation results on the electromagnetic environment in an impulse current attack. Based on these results, influence of conductor resistivity, relative permeability and similar properties on impulse grounding resistance of grounding grids under different soil conditions are discussed. The final part of this paper also gives ground potential rise distribution on grounding grids of different conductor materials under an impulse current’s attack. Calculation results show that when laying grounding grids in soil with higher resistivity, copper materials with relatively lower permeability and resistivity can be used, thereby greatly reducing the impulse grounding resistance of grounding grids.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Leishi Xiao
AU  - Qian Li
AU  - Huizhong Xue
PY  - 2015/12
DA  - 2015/12
TI  - Influence of Grounding Material’s Property on the Impulse Grounding Resistance of Grounding Grids
BT  - Proceedings of the 2015 International Conference on Electrical, Electronics and Mechatronics
PB  - Atlantis Press
SP  - 1
EP  - 5
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceem-15.2015.1
DO  - 10.2991/iceem-15.2015.1
ID  - Xiao2015/12
ER  -