Building industrial equipment that is installed outside. These systems are modular in nature and can be or will be moved from one location to another.
General set up is a central power entry module, that then feeds one to six sub systems. Power for each subsystem is plugged in via a suitable cord and weather tight connector.
Total system power is between 10 and 50 KVA at 3 phase 240 depending on system configuration.
Bonding will probably be separate suitably sized conductor(s) tying all of the structures together.
My question is: What would be a suitable method of testing the bonding to verify everything has a nice low impedance path back to the PE terminal?
I believe I need approximately 200 A AC or DC for 1 minute to perform this verification test.
My thoughts are a constant current power supply like a stick arc welder or perhaps a 1 KW 12/24 buck/boost transformer and a large variac.
