A three-phase balanced voltage source is applied to a balanced Y-connected load with ungrounded neutral. The Y-connected load consists of three mutually coupled reactances, where the reactance of each phase is j12 Ω and the mutual coupling between any two phases is j4 Ω.
The line-to-line source voltage is 100√3 V.
Determine the line currents (a) by mesh analysis without using symmetrical components, and (b) using symmetrical components.