That's what I kind of understood from my research. That having the ground conductor really reduces the touch and step potential's.
I did a quick calculation using the reactance of the 1/0 ground wire back to the utility transformer,and using the max. fault current. That gave a total voltage...
Yes, the 4160V will be solidly grounded?
Do I need to install a ground grid around either the 4160V switches, or the transformers? Or is a typical ground consisting of three ground rods, a concrete encased electrode, and a water pipe enough?
Planning some work for a small factory. The power company will be replacing and moving a 35KV to 4KV outdoor transformer. They will do all the grounding and bonding required for that work.
However, I'm doing the design for the 4160V distribution after it leaves the power company...
