This morning, I finally got the scoop. It was hooked up 480 delta, no neutral. Our Superintendent said they had the neutral made up straight to their pole ground, which was not tied to the transformer at all. He said the lineman said, get this; we get our neutral for 277 from our transformer inside.
Okay, daily problems aside, would this situation allow a meter to read 277 volts? I listed this under the theory area because I want it to gel in my mind. Thanks for your response.