Thanks for answering.
I copied the response, to write on it, our way to see the Electromagnetic world, with Ohm's law lenses.
A ground fault at the substation will cause a ground potential rise near the ground grid at the sub and near the location of the fault. = AGREE
With no...
Is CYMgrd or ETAP able to model the interconnection of a solar PV farm earthing grid interconnected with its interconnect substation earthing grid?
The issue is that when injecting the short-circuit currents from the substation into the earthing grid of the PV plant, it does not support it...
We are involved in a 90 MW PV in construction project. The interconnect station (33/132 kV) is exactly as those shown in IEEE 2778, neighboring the PV farm.
The GPR is quite high (about 8 kV) at substation due to several reasons, as 22 kA short circuit power, quite small switch yard (40x45 m)...
By coincidence, we have a similar problem with a 90 MW PV in construction project, but here the interconnect station (33/132kV) is exactly as those shown in IEEE 2778, neighboring the PV farm.
The GPR is quite high (about 8 kV) at substation due to several reasons, a 22 kA short circuit power...
