Substation Ground Well
Substation Ground Well
(OP)
Does anyone have any thoughts on how a substation ground well might be modeled? I'm using ETAP, which does not have a formal procedure or element to model one. I know the overall grid resistance, and I know the resistance of each well.
Ultimately I'm trying to determine GPR, touch and step voltage. I'm certain the ground wells will solve my voltage violations, but I wish I could verify it.
Ultimately I'm trying to determine GPR, touch and step voltage. I'm certain the ground wells will solve my voltage violations, but I wish I could verify it.






RE: Substation Ground Well
RE: Substation Ground Well
That's another question though... how much would a ground well actually lower touch/step voltage? I've been playing with an idea I had of how to model the well which I believe to be correct, but it has minimal effect on touch voltage. Perhaps I misunderstand what a ground well is really for.
RE: Substation Ground Well
The voltage profile could be improved since significant amount of current will be forced to the ground well because the expected low resistance path in this point.
RE: Substation Ground Well
file:///D:/D_My%20Documents/Engineering/Grounding/10-Decreasing%20Grounding%20Resistanc%20Deep-Ground-Well%20Method.pdf
ch.VI. ESTIMATION OF EQUIVALENT LOW-RESISTIVITY REGION FORMED BY DEEP GROUND WELL