An acb sequence balanced three -phase Y- connectedsource supplies power to a balanced , three -phase Δ-connected load with an impedance of 117-j99 Ω φ.Thesource voltage in the b -phase is 20<-90 V. The line impedance is 1+j3 Ωφ .
Draw the single phase equivalent circuit for the a-phase anduse it to find the voltgae and line current in the a phase of the load .