A Wye-Delta Transformer Has a Turns Ratio of 2:1

question 21

Multiple Choice

A wye-delta transformer has a turns ratio of 2:1. It has a secondary line voltage of 480 V. The secondary is connected to a wye-connected three-phase resistive load of 50 Ω in each phase. What is the current flow is in each load resistor?

• A) 1.6 A
• B) 2.8 A
• C) 4.77 A
• D) 5.54 A

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