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A three-phase grounded ideal delta-wye connected transformer supplied a balanced load.The transformer's turns ratio is 50. The total three-phase power is 240kW with 0.8 lagging power factor. The secondary side

voltage is balanced, where the phase voltage Van is 100 angle0°V. What is the primary side current Ia and secondary side current Ia? (30 points)

Fig: 1

Fig: 2

Fig: 3