Magoo2 - I meant 25 kA.
pwrtran - I think I am running into problems due to the fact that the design short circuit current is very conservative.
I am close on this substation but I have others that are worst. I am have been trying to increase the size of the station to reduce the grounding...
I am designing a grounding grid and have had no problems meeting step and touch potentials. I am having a hard time meeting the ground potential rise requirement of 5000 V. It is a small substation that is roughly 300x700 feet. The designs fault level is 25 kVA and I have a ground resistance...
