Describe the difference between delta and wye transformer connections, including the presence of a neutral and phase shift.

• A. Delta has a neutral and no phase shift; Wye has no neutral and introduces 30-degree phase shift.
• B. Delta has no neutral and typically introduces a 30-degree phase shift; Wye provides a neutral and line-to-neutral voltage with a 0/30-degree phase relationship depending on the configuration.
• C. Delta is used only for three-phase six-wire; Wye is for single-phase.
• D. Delta and Wye are identical except color coding.

Answer: (B)