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  1. imncntrl

    Why wont these two 20MW DY1 power transformers phase?

    We have 2-20MW power transformers that we tried to phase so we could parallel.  I will call 1 of them T1 and the other MS.  T1 is a GE delta-wye (DY1) 115000-24940/14400.  MS is a WH delta-wye (DY1) multi-configuration set on 115000-24940/14400.  H1 and H3 are swapped on MS but i believe all...

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