We generate our own power here at a natural gas compressor station. 3-312 KVA generators, old Ingersal PVG-8 prime movers. The switch gear and MCC is all new (1999). The 480 ground detection is pretty simple in that it has a 120 volt light per phase isolated by it's own transformer referenced...
It doesn't work because an anode must have an electrolytic solution of some kind to work, in other words water. This provides a path from the anode to the metal being protected (the cathode). It's a simple DC circuit.
Hello, first post. Long story short, ground fault lights are referenced to ground and normally go dim or go dark if ground fault occurs. I have one now that gets brighter when 20 horse cooling tower motor is turned on. Phase to phase arcing within the motor?
3 phase ungrounded Y
Thanks...
