Q25. i) A three phase induction motor is wound for 4 poles and is supplied from 50Hz system. Calculate the synchronous speed and speed of the motor when slip is 4.1%

Q: 4. for three phase induction motor, the decreasing in the starting torque when the motor started by…

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Q: A 6 pole , three phase induction motor operates from a 300V,45Hz supply. The slip of the machines is…

A: For the three-phase induction motor speed at horsepower output of the motor is determined as shown…

Q: 9) Provide one general method to control the speed of an induction motor.

A: The rotor speed (Nr) of an induction motor is given by,𝑁𝑟=(1−𝑠)𝑁𝑠And the synchronous speed is…

Q: 1. A unity-feedback system has forward transfer function G(s) = K s-1 (s + 2) (s + 5) a) Sketch the…

A: In the given questions we need to sketch the root locus and range of K for stability.

Q: What is of the 1800 rpm the value 4 pole induction of the torque induction motor at change the…

A: Since you have asked multiple questions, we will solve one question for you. If you want any…

Q: A 3-phase, 4-pole, 50Hz induction motor is running at 1455rpm. Find the slip speed and slip.

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Q: A 4-pole, 3-phase alternator drives at 1000 r.p.m. is supplying to an induction motor which has full…

A: Given: 3 Phase Alternator P = 4 Ns = 1000 RPM Full load Speed = 2880 RPM

Q: 1.A 3-phase induction motor is wound for 12 poles and is supplied from 60Hz system. Calculate: (i)…

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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.