Example 1: A 500 V, 3-phase, 50 Hz, 8 pole star connected induction motor has the following equivalent parameters; R1=0.130, R2=0.32 0, x1=0.6 Q, x2=1.48 Q, magnetizing branch admittance Ym=0.004-j0.05 0-1 referred to primary side. The full load slip is 5%. Determine the full-load electromagnetic torque, stator input current and power factor using both approximate and exact equivalent circuits. The effective stator/rotor turns ratio per phase is 1/1.57. neglect mechanical loss.

Q: A wound rotor, induction motor has a rotor resistance of 0.6 ohms per phase and a rotor leakage…

A:

Q: A three-phase, 50-Hz, 6-pole induction motor develops a useful torque of 120 Nm at full-load, while…

A: Given : Pole = 6  Frequency =50 HZ  Useful Torque = 120 Nm Rotor Frequency = 2 HZ torque Lost = 10…

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.