A three-phase four-wire unbalanced load varying from 1.0 to 30 kVA (with a step of 1 kVA) at 0.8 lagging power factor is connected between phase a and neutral with an input AC line–line voltage of 415 V at 50 Hz. It is to be realized as a three-phase balanced unity power factor load on the threephase supply system using a shunt compensator consisting of lossless passive elements (L and/or C). Calculate (a) supply line currents, (b) compensator currents, (c) the values of compensator elements (in farads or henries), (d) its kVA rating, and (e) equivalent per-phase resistance (in ohms) of the compensated load.

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