Question: A 1 0 kVA, single - phase transformer for 2 0 0 0 / 4 0 0 V at no load has R 1 =

A 10 kVA, single-phase transformer for 2000/400 V at no load has R1=5.5, X1=12, R2=0.2, X2=0.45. Determine the approximate value of the secondary voltage at full load, 0.8 power factor (lagging), when the primary applied voltage is 2000 V

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