The leakage reactance of a three-phase, 500 -MVA, $345 \mathrm{Y} / 23 \Delta$-kV transformer is 0.09 per unit based on its own ratings. The $\mathrm{Y}$ winding has a solidly grounded neutral. Draw the per-unit equivalent circuit. Neglect the exciting admittance and assume American standard phase shift.

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The Answer of The leakage reactance of a three-phase, 500 -MVA, $345 \mathrm{Y} / 23 \Delta$-kV transformer is 0.09 per unit based on its own ratings. The $\mathrm{Y}$ winding has a solidly grounded neutral. Draw the per-unit equivalent circuit. Neglect the exciting admittance and assume American standard phase shift.

The Leakage Reactance of a Three-Phase, 500 -MVA 345Y/23Δ345 \mathrm{Y} / 23 \Delta345Y/23Δ

The Leakage Reactance of a Three-Phase, 500 -MVA $345 \mathrm{Y} / 23 \Delta$