This was mentioned a few days ago but would someone please clarify it for me. I am installing 3-ph to the shop. It is 200A delta wound, 2 transformers on pole, 3 hot wires 1 neutral from pole, ground rod driven into the dirt and hooked to the neutral buss bar. Drawing with the meter box shows the neutral wire coming from the middle of one side of the triangle that forms the delta. Is this what is called "center tapped"? I think I want to run 5 wires to each machine. 3 hots, 1 neutral, and one ground from the machine base all the way back to the neutral buss bar in the sub panel. Is this right? I also want to have a 120 outlet and 120 work light on each machine. AT THE MACHINE, I am going to pick one of the hot legs(NOT the power/stinger leg) and the neutral. Will connect the ground leg in the light to the base of the machine. Is this right or do I have to go all the way to the sub panel with the wires? Next, I have a 5-hp 220V single phase air compressor. For that I think I need only 4 wires. 2 hots(NOT the power leg) 1 neutral, and one ground from chassis all the way back to the neutral buss bar in the sub panel. Is this correct? I want this to be safe and legal. Thanks for your time, Chief.
19 years ago