Anijet may actually have the correct answer. Sounds very possible that someone (who doesn't know what they are doing) may have tried to make a 50a out of an old 30a and just jumped side to side for the power. That would make sense and I have seen it before. Is this possibly in an older park? Measure the voltage side to side. If it comes up zero and not 240 than that is it.
By the way donandpatti , what problem are you having that you think a transformer will fix?
Bill
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