Measuring electrode arrangement for grounding resistance measurement of grounding system in vertical-layered soil

Author

Rong Zeng ; He, Jinliang ; Gao, Yanqing ; Sun, Weimin ; Su, Qi

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

3

fYear

2000

fDate

2000

Firstpage

1469

Abstract

How to precisely measure the grounding resistance of a substation is the fundamental factor to guarantee the safe operation of power system. The arrangement rules of measuring electrodes for the grounding resistance measurement of grounding system in vertical-layered soil were analyzed by numerical method. The demanded correct site for the potential rod under different directions is obtained when the grounding system is arranged in different soil model. The analysis states that scientific and suitable measurement method is to correctly choose the site for the potential rod according to the soil and grounding system structures in order to precisely measure the grounding resistance, and realizes the difference between the measuring results and actual grounding resistance

Keywords

earth electrodes; electric resistance measurement; power system measurement; power system protection; soil; substations; grounding resistance measurement; grounding system; measuring electrode arrangement; numerical method; potential rod; safe operation; substation; vertical-layered soil; Conductivity; Current measurement; Electrical resistance measurement; Electrodes; Geologic measurements; Grounding; Power measurement; Power system measurements; Soil measurements; Substations;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on

Conference_Location

Perth, WA

Print_ISBN

0-7803-6338-8

Type

conf

DOI

10.1109/ICPST.2000.898187

Filename

898187