The Induction Motor 3 phase 380 Volt 50 Hz with star connection.Has an induced voltage between the 80 Volt slip ring in the OFF state and the open circuit the Stator is connected to the grid.  Has the Rotor Impedance per phase at rest (0.5 + j 3.5) Ohms. and starting Resistance (Front) 4 Ohms per phase. p = 6 poles , slip 4% and Frequency 50 Cps. Note : 3 Phase Electric Motor with Coiled Rotor and Starting Resistance (front) is one of the rotor speed regulators Question : a. the value of RPM rotor

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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.