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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...