Influence of Grounding Material’s Property on the Impulse Grounding Resistance of Grounding Grids
- 10.2991/iceem-15.2015.1How to use a DOI?
- component; grounding grid; over-voltage; material properties; impulse grounding resistance; moment method
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.
- © 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/).
Cite this article
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 -