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Answer Posted / rishabh jadia
Transformer ratings are in kva becoz total
losses in transfomer only depends on voltage
and current but they do not depends on phase
angle between them i.e. power factor (pf).
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Electronic circuit
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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