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IM02602004E ETR-4000 Vector Group Phase Shift Transformer Connection Type Winding 1 Connection Winding 2 Connection A C B a A Yz11 b C B c Phase Compensation (ACB Phase System) The phase shift n for the ACB phase sequence should be 12’s complement to the corresponding transformer connection type. For instance, Dy5 for the ABC phase sequence will be Dy7 (12-5) for the ACB sequence, Dy11 becomes Dy1, and so on. www.eaton.com 287
