Question: A 1 5 - kVA 8 0 0 0 / 2 3 0 - V distribution transformer has an impedance referred to the primary of

A 15-kVA 8000/230-V distribution transformer has an impedance referred to the primary of 80+ j300 Ohm. The components of the excitation branch referred to the primary side are R_c =350 k Ohm and X_M =70 k Ohm. If the primary voltage is 7967 V and the load impedance is Z_l =3.0+ j 1.5 Ohm. what is the secondary voltage of the transformer? What is the voltage regulation of the transformer? If the load is disconnected and a capacitor of-j4.0 ft is connected in its place, what is the secondary voltage of the transformer? What is its voltage regulation under these conditions?

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