A balanced delta connected load has an impedance of (60 +j45) ohm per phase. The load is fed through a line having an impedance of (0.8 +j0.6) ohm per phase. The phase voltage at the terminals of the load is U =480V. The phase sequence is positive. N.B: Use UAB as the reference. a- Calculate the three phase currents of the load. b-Deduce the three line currents I. c- Construct the a-phase equivalent circuit of the system. d- Calculate the three line-to-neutral voltages at the sending end of the line e-deduce the threee to line voltages

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A balanced delta connected load has an impedance of (60 +j45) ohm per phase. The load is fed through a line having an impedance of (0.8 +j0.6) ohm per phase. The phase voltage at the terminals of the load is U =480V. The phase sequence is positive.
N.B: Use UAB as the reference.
a- Calculate the three phase currents of the load.
b-Deduce the three line currents I.
c- Construct the a-phase equivalent circuit of the system.
d- Calculate the three line-to-neutral voltages at the sending end of the line

e-deduce the threee to line voltages 

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