3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. D

3 shows a 415 V, 3-phase generator supplying a 3-phase
415/110 V transformer. Draw the individual and combined impedance
diagrams to a base of 10 kVA. Determine the system fault kVA and the
fault currents at the 415 V and 110 V busbars for short circuit faults on
the transformer input or output terminals. Work in p.u. values of
impedances.

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