Shujinko
Senior Member
I have a project in design with a 4000A switchboard service main (normal side) and a 1000KW exterior generator with CB. All at 480Y/277V. The neutral and ground are bonded at the main switchboard and at the generator. All associated ATS's are 4-pole with a switched neutrals. Does my docking station have to be service entrance rated or non-service entrance rated? My biggest question is, when the docking station is connected to a temporary generator where does the neutral to ground connection come from? Do I need to establish another neutral to ground connection at the docking station for the times where the temporary generator is being used and the permanent generator is offline? Or does the docking station use the neutral to ground bond at the permanent generator when the temporary generator is connected to it?