4 Two balanced 3-phase loads are connected in parallel Load has lagging pf of 0 . 5 and its 3 - phase real power is 20 kW The load 2 has lagging pf of 0 .5 and its 3-phase real power is 15 kW The line voltage at the terminals of the load is 440 V rms The load terminals are connected to the source terminal by means of cables which have an impedance of 1+j3 02 each Calculate (a) the line current ; (b) the line voltage at the terminals of source; and (c) the power factor at the load terminals