I had a bad VFD which created a ground fault that was picked up by a high resistance ground located in the room. The HRG knocked the fault current down to 8 Amps which prevented any OCPD from opening which is all good. I understand that electricity seeks its source which is the switch board feeding the VFD. So my question is how does the fault current find it’s way to the HRG? There is a TVSS located in the switchboard. Does a TVSS shunt fault current in a way that it would migrate to the HRG. All the equipment in the switchgear room is bonded by a common ground 4/0. I am trying to understand how this HRG which is physical located 10’ from the switch board was able to pick up the fault current. I don’t understand how the HRG operates?:?