A 4-pole, 50 Hz, 3-phase AC motor has a synchronous speed of 1500 rpm. If the motor is connected to a 120 V AC source, what is the induced EMF in the motor?
Q1. A 4-pole, 50 Hz, 3-phase AC motor has a synchronous speed of 1500 rpm. If the motor is connected to a 120 V AC source, what is the induced EMF in the motor?
Answer: 180 V
Explanation: Using the induced EMF formula, the induced EMF is calculated from E = 4.44 * f * N * Φ, giving 180 V