Know I have an issue with a 480 step down transformer. 115 230 115 secondary. I have 480 across the primary and 277 on each leg to ground on the scondary I have 110 and 110 the problem is the 230. Across the legs I have 230 to ground I have 200 on one leg and 60 on the another. The 230 is powering 3heaters in parallel. Can someone help me with the why and theory behind the cause?