Q3: Fill in the blanks with an appropriate word, when loading a three-phase induction motor, which was originally rotating without load A- its speed. b- slipping c- The electromotive force in the rotating member.

Q: a. Explain how a rotating magnetic field is produced in a three-phase induction motor. b. Explain…

A: a) Rotating Magnetic Field When a three-phase supply is applied to a three-phase distributed…

Q: A 6-pole, 60Hz, Three-phase induction motor delivers 9.9hp with an input of 9200 watts. The core…

A:

Q: A 4 Pole, 50 Three Phase Motor 25 Kg. The meter produces a maximum torque of 1350 Nm per minute. So…

A: Solution : Given data: pole P= 4 , frequency f=50 ,  Three Phase Motor Tm=  25 Kg, produces a…

Q: If a 3-phase squirrel-cage induction motor were to run at synchronous speed, there would be no…

A: Induction motor is generally asynchronous motor means it run at below   it's synchronous speed . But…

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.