Earth Resistance of Grounding System with Obliquely Driven Rod Electrodes and Potential Distribution on Earth Surface

Abstract

It has not been performed to theoretically analyze the earth resisteance where the electrodes are obliquely set up in the earth. This paper discribes the calculation results of the earth resistance and the earth surface potential when one or more rod electrodes are obliquely driven in the earth. For the earth resistance of obliquely and radiailly driven short rods, the experimental results correspond approximately with the calculated results. Furthermore, at the grid grounding systems with rod electrodes, it is confirmed to decrease a potential gradient on the surface when the rods are obliquely driven.