At the end of this lesson, you will be able to identify the construction of an AC circuit, calculate the circuits’ capacity value, and conduct power factor corrections in AC circuits. • Describe the differences between three-phase and single-phase voltages • Describe the characteristics of delta and wye connections • Calculate current and voltage for delta-connected circuits • Calculate current and voltage for wye-connected circuits • Describe the purpose of power factor • Calculate capacitance needed to make a power factor correction