Hi, I am trying to calculate the ground potential rise at 20 m away form the grounding grid site.
The senario is as follow:
The resistivity of the soil is 56 ohm-meter and the resistance of the grounding grid in substation is 1 ohm ( let suppose). When there is a fault of 20 kA, there is potential rise in the grounding grid. I just want to know how to calulate the ground protention rise or incresed in the voltage at the distance of 20 m from the grounding grid.
Any suggestion and information in the regard would be highly appreciated.
Thank you.
The senario is as follow:
The resistivity of the soil is 56 ohm-meter and the resistance of the grounding grid in substation is 1 ohm ( let suppose). When there is a fault of 20 kA, there is potential rise in the grounding grid. I just want to know how to calulate the ground protention rise or incresed in the voltage at the distance of 20 m from the grounding grid.
Any suggestion and information in the regard would be highly appreciated.
Thank you.
