Friends....as some of you may know, the company that I recently took employment with does roadway signing and lighting. I was discussing electrical systems with someone the other day, and the subject of a 480 volt to ground system came up. This type of system is all, but history. The remaining 480 volt to ground systems are being phased out. The person that I was talking with didn't know anything about how it works. The only thing that I could imagine was a 480 volt, open delta system with the two joined legs grounded.
Is there some type of wye configuration that will yield 3 phase 480 to ground? Does anyone have any knowledge of these systems? I was thinking maybe Scott35 might have, or know of a diagram for this system.
Scott, if you're out there, give me a ring.
Best Regards,
Doc
