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1.   The phase voltage at the terminals of a balanced three-phase Y-connected load has an amplitude...

1.   The phase voltage at the terminals of a balanced three-phase Y-connected load has an amplitude of 120V. The load has an impedance of 39 + j28Ω per phase. It is fed from a line having an impedance of 0.8 + j1.5 Ω per phase. The Y-connected source at the sending end of the line has an internal impedance of 0.2 + j0.5 Ω per phase. Calculate:

a)   The three line currents

b)   The three-phase voltages at the load

c)   The total average power dissipated in the distribution line

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Answer #1

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