TransformersQuestion 1047 of 1506

Which bank connection is preferred when no neutral is needed on the secondary?

Y-Y
Open Y
Single-phase
Delta-delta

Show answer

Correct answer: Delta-delta

It keeps the reliability of the delta connection.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 7.6: Three-phase Transformer Circuits

Questions last reviewed: 18 October 2026

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