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  1. Bob357

    Three winding transformers

    In a wye - grounded wye - delta transformer, how does load unbalance on the secondary (the grounded wye winding) reflect into the primary (ungrounded wye winding) and the tertiary (delta) winding? The transformer in question is a 15 MVA, 69 kV - 12.47 kV with a 30% delta 4800 volt tertiary.

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