Calculate the supply line current, Electrical Engineering

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A balanced star-connected load is connected across a three phase 450V 50 Hz AC supply. Each load element has an impedance of 5+j12 Ω.

Calculate:

(i) The power factor of the load

(ii) The supply line current

(iii) The reactive power consumed by the load

(iv) The delta-connected capacitor values required to restore the system power factor to unity.

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