https://brainly.com/question/50124722
To find the line currents in a star-connected three-phase system, use Ohm's law I=V/Z with the phase voltages and impedances provided, calculating the differences between adjacent phase voltages to determine the line currents through the impedances. To find the line currents IAB, IBC, and ICA in a three-phase system with impedances connected in a star configuration, we first need to understand the relationship between line voltages and phase voltages in such systems. The given impedances are all equal and can be denoted as Zy=(8 j6) . The voltages provided are phase voltages: VA=(220 j0)V, VB=(-110-j190)V, and VC=(-110 j190)V (after correcting the given VB and VC values to account for the typo). Since the impedances are connected in star configuration, the line currents can be found using Ohm's law: I=V/Z. The line current IAB would be the current through impedance Zy due to the voltage difference between VA and VB, which is VAB=VA-VB. Similarly, we find