When a typical 150 kVA, 480V, 3PH delta to 208Y/120V, 3PH dry type xfmr is reverse connected with a 208V, 3PH, 3W primary, is there any negative impact on the xfmr because it is connected with a 3PH, 3W feed in lieu of a 3PH, 4W feed. Are there any engineering or NEC principles violated. Any thoughts.
Michael
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