Situation #2
I'm still not clear on whether the main bonding jumper is installed, but am assuming that it is.
1) The system would function normally
2) The OCPDs would function normally
3) The ground fault path for ground faults on the load side of the service would be the equipment grounding conductor to the main bonding jumper to the neutral conductor and back to the transformer. The only ground fault path on the line side of the service would be through the earth itself.
4) The voltage to ground would be 120. Some of the equipment bonding conductors would be connected to things that would act as grounding electrodes and make the voltage readings normal.
5) GFCIs would work fine.
6) Multiwire circuits would work as normal.
Don(resqcapt19)
