10.6. A balanced three-phase voltage of 360-V line-to-neutral is applied to a bal- anced Y-connected load with ungrounded neutral, as shown in Figure 81. The three- phase load consists of three mutually-coupled reactances. Each phase has a series reactance of Z=j24 2, and the mutual coupling between phases is Zm = j6 N. (a) Determine the line currents by mesh analysis without using symmetrical com- ponents. (b) Determine the line currents using symmetrical components. Ia j6 Ib j6 Va 16 Ic. Vb FIGURE 81 Circuit for Problem 10.6.