INTRODUCTION
Electrical Power Generation, Transmission and Distribution employ a particular system of three sinusoidal voltages/currents with certain symmetry in voltage/current magnitude and relative phase. This system of three sinusoidal voltage/current waveforms is called a three-phase voltage/current and a circuit employing a three-phase voltage/current system is called a three-phase circuit. A three-phase circuit, like any other circuit, will have to go through a transient period subsequent to the application of source functions before it can settle down to a sinusoidal steady-state condition. We focus on the analysis of three-phase circuits under sinusoidal steady-state condition in this chapter.
No new concepts are required for the analysis ...
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