I am an electrical designer currently working on the design of a ship. I am familiar with buildings, new to ships. Apparently, there are 115VAC 3-phase panels on this ship, I tried to convince my colleagues that that sort of system doesn't exist but apparently it does. I have been told the ship’s power provides 115VAC 3-phase, delta (3-wire, no neutral) where any line-to-line combination provides 115VAC. Can someone school me on this? I cant find any explanations online.