The open-wye-open-delta transformer connection is sometimes used to deliver small amounts of three-phase power to a secondary load and deliver larger amounts of single-phase power to the secondary load.

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The open-wye-open-delta transformer connection provides a way to deliver both three-phase and single-phase power to a secondary load. It is commonly used in situations where the amount of three-phase power required is small compared to the amount of single-phase power needed.

The Open-Wye-Open-Delta Transformer Connection Is Sometimes Used to Deliver Small