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3 phase circuit question
Last Post 12 Sep 2014 04:27 AM by lee xuan. 0 Replies.
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lee xuan
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12 Sep 2014 04:27 AM
    An Unbalanced DELTA connected load is connected to a 415 V, 50 Hz supply. The line voltages are: VAB = 415-30 V, VBC = 41590 V and VCA = 415-150 V
    If the Phase Impedances are : ZAB = 3 – j4 , ZBC = 12 + j5  and ZCA = 8 + j6 .
    Determine:
    (i) the magnitude and angle of line currents of IA, IB IC;
    (ii) the total power PT dissipated by the load in kW;
    (iii) the total reactive power QT of the load in kVAr;
    (iv) the total apparent power ST of the load in kVA.
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