(Solved): Question \( 4 . \) A three-phase line has an impedance of \( \mathrm{j} \) Ohms. It feeds two bala ...

Question \( 4 . \) A three-phase line has an impedance of \( \mathrm{j} \) Ohms. It feeds two balanced three phase loads connected in parallel. The first load is star connected with impedances of 12 Ohms per phase. The second load is delta connected with impedances of 18 Ohms per phase, and the supply voltage is \( 346.41 \mathrm{~V} \) line. Using the phase voltage across "a" as the reference and with an abc phase sequence, find: a) Line current, real power and reactive power drawn from the supply b) The line voltage applied to the loads (i.e. \( 346.41 \mathrm{~V} \) line less the voltage drop across the j3 line impedances) Fig. 5 Diagram for Question 4