The reactive power flows through the inductive part of the circuit 90 later and has an average value of zero. The product of the voltage and current is the apparent power and measured in VA or kVA. Three Phase Circuits Circuit Analysis Analysis Circuit Electrical Engineering The majority of commercial buildings throughout the United States contain a three-phase power circuit. . An electrical motor is an electromechanical device that converts electrical energy into mechanical energy. In the case of three-phase AC Alternating Current operation the most widely used motor is a 3 phase induction motor as this type of motor does not require an additional starting deviceThese types of motors are known as self-starting induction motors. You can use either but you have to remember that the phase to phase voltage is sqrt3 times the phase to neutral voltage. A single line in the diagram typically corresponds to more than one physical...