No load test on three phase induction motor
In a 3-phase slip-ring induction motor, 3-phase balanced supply is given to the rotor and stator winding is short -circuited. The rotor would
A 3-phase slip-ring induction motor (SRIM) has 4-pole stator and 2-pole rotor. With its stator energised from 50 Hz source, the rotor would run at a no-load speed
A 3-phase squirrel-cage induction motor (SCIM) has its stator rewound for 6 poles without any alteration in the rotor. The motor would run at a speed
If the rotor of a 3-phase IM is assumed purely resistive, then electromagnetic torque in the motor is
If the rotor pf of a 3-phase IM is 0.866, then spatial displacement between the stator magnetic field and rotor magnetic field will be