Influence of soil and conductor of ground grid on safety of the grounding system

Author

Li, Lin ; Cui, Rang ; Lu, Tiebing ; Yin, Haoliu

Author_Institution

North China Electr. Power Univ., Hebei, China

Volume

2

fYear

2000

fDate

2000

Firstpage

675

Abstract

The grounding system of a practical 500 kV substation, in which the ground grid is made from steel, is calculated by virtue of the CDEGS software. The model of the soil is established based on the soil resistivity measurements. The safety of the grounding system is evaluated. The influence is analyzed of soil and conductor of ground grid on the safety of the grounding system through large computation under the condition of various soil resistivity, conductor permeability, and conductor conductivity. The influence of soil on the safety of the grounding system is also analyzed when the ground conductor is assumed to be copper

Keywords

conductors (electric); earthing; electric potential; electrical conductivity; electrical resistivity; permeability; power system protection; safety; soil; substations; 500 kV; CDEGS software; Cu; conductor conductivity; conductor permeability; copper; electric potentials; ground grid; grounding system safety; soil model; soil resistivity measurements; steel; substation; Conductivity measurement; Conductors; Copper; Grid computing; Grounding; Permeability; Safety; Soil; Steel; Substations;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2000. IEEE International Symposium on

Conference_Location

Washington, DC

Print_ISBN

0-7803-5677-2

Type

conf

DOI

10.1109/ISEMC.2000.874701

Filename

874701