Question A 15kVA, 2400V/240V, 50Hz, single phase transformer has the following equivalent circuit parameters: Primary re

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Question A 15kva 2400v 240v 50hz Single Phase Transformer Has The Following Equivalent Circuit Parameters Primary Re 1 (97.65 KiB) Viewed 44 times

Question A 15kVA, 2400V/240V, 50Hz, single phase transformer has the following equivalent circuit parameters: Primary resistance, Rp = 2.51 Secondary resistance, Rs = 0.02512 Primary reactance, Xp = 712 Secondary reactance, Xs = 0.0712 Core resistance, Rc = 32k12 Magnetizing reactance, Xm = 11.5k12 Given that the transformer is supplying to a load with 0.8 power factor lagging at rated voltage. (a) Draw the approximate equivalent circuit referred to primary and calculate the equivalent winding impedance referred to primary. [7 marks] (b) Using the circuit obtained in part (a), determine the input voltage when output voltage is 240V. [7 marks]