Scott35 thank you for the quick response. You answered my first question exactly how I thought it should be. Guys at work tried to tell me that the ground wire becomes the neutral.
The second question involved a 575V 3 Phase pump. The no load voltage was 625V and the mechanical contractor was wondering if the current would also slightly increase under normal load. I told him I thought it would, but wasn't really sure. Never got around to actually taking a load reading.
Out of curiousity what would happen in a resistive load. Based on the formula E=IXR,
I would assume that if voltage increases so does current because resistance stays constant. Guys at work tell me that the opposite happens. You have to forgive me but it's been a while since I've been to trade school, so I'm a little foggy.