A 15kVA, 2400V/240V, 60Hz, single phase transformer has the following equivalent circuit parameters: Primary resistance,

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A 15kva 2400v 240v 60hz Single Phase Transformer Has The Following Equivalent Circuit Parameters Primary Resistance 1 (96.38 KiB) Viewed 36 times

A 15kVA, 2400V/240V, 60Hz, single phase transformer has the following equivalent circuit parameters: Primary resistance, Rp = 2.50 Secondary resistance, Rs = 0.0250 Primary reactance, Xp = 792 Secondary reactance, Xs = 0.070 Core resistance, Rc = 32k12 Magnetizing reactance, Xm = 11.5kN 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]