In the normal operation of an induction motor, the rotor turns at less than synchronous speed in order to A. create less heating of the squirrel-cage bars. B. develop circulating currents in the stator frame. C. produce sufficient voltage to develop the required torque. D. overcome windage and friction losses.

Q: Fill in the following blanks: 1. In order to have sparkless commutation, the brushes should be…

A: 1.In order to have  sparkless commutation, the brushes should be placed along the MNA axis 2.D.C…

Q: A 3-phase, 4 pole, 230 V, 60 Hz wound-rotor induction motor has

A: Three Phase Induction machine- This Induction machine comprises of rotor and stator as it basic…

Q: Explain working of an induction motor in your own word and in detail Please do it fast

A: The motor which works on the principle of electromagnetic induction is known as the induction motor.…

Q: : A 3-phase, 6 Pole, 50 Hz, 400 V induction motor takes a line current of 40 A at 0.8 p.f. and runs…

A: Number of poles, P=6 supply frequency, fs=50 Hz line  current, IL=40 A The power factor, cosϕ=0.8…

Q: P-1).. Which of the following determine the amount of torque produced by a single-phase split-phase…

A: In single phase split phase motor the amount of torque produced is depend on the phase angle…

Q: Q2 :The equivalent circuit of a 4 pole, three phase, 60 hz induction motor is shown in the circuit…

A: In this question, we need to determine the air gap power, output power, and copper losses.  We know…

Q: Skewing of rotor conductors in a squirrel cage induction motor reduces a. heat developed while…

A: skewing of the rotor conductors are done in the induction motor for the specific reason

Q: Stator current, Power factor, leading or lagging? Speed and Output Torque, Efficiency,

A: Induction Motor Induction motor is a type of AC asynchronous motor which converts AC electrical…

Q: A 415 V, 50 Hz, 4-pole, three-phase squirrel-cage induction motor runs at a speed of 1425 rpm. motor…

A:

Q: Explain in details why does the rotor of the three phase induction motor rotate, then determine the…

A: three-phase induction rates at a slightly slower speed than the asynchronous speed of the…

Q: on motor has a resistance of 0.012per hat must be the value of resistance per What is the percentage…

A: This is basic problem from induction motor

Q: DEGREE: ELECTRICAL ENGINEERING  SUBJECT/COURSE: AC MACHINES   Answer the following questions (A,…

A: INDUCTION MOTOR       Induction motors are most popular around 90% of motor used generally are…

Q: the type of three-phase induction motor, which is used for high starting torque application a.…

A: In this we will write about induction motor used for high starting torque..

Q: What should be the number of revolutions of a dc machine to be able to have a generated em of 200V?…

A: In this question We need to determine the speed of the DC shunt motor.  We know E= PΦZN/(60A)

Q: Consider figure and assume that the rotational torque is 200 N-m and the radius of the rotor is 0.25…

A: Given data, Rotational torque = 200 N-m radius of rotor (r) = 0.25 m   We have been asked to find…

Q: 14.a. The reason for using a laminated stator core in a universal motor is to A. limit the eddy…

A: Iron losses of motor contain hysteresis and eddy current loss. Hysteresis loss depends upon core…

Q: (A)Give a clear explanation of the following effects in a three-phase induction motor: (1) the…

A:

Q: Problem 2 A 3-phase 2-pole induction motor is rated 190 V, 60 Hz, it is connected in Y, and has R2 =…

A: It is given that:P=2V=190VR2=6.6Ω,R1=3.1ΩXm=190Ω,X2=10Ω,X1=3Ω

Q: If the armature current in a dc machine is 400A, what should be the current in each winding if the…

A: Note In Lap winding,  Number of pole (P) = Number of Parallel path (A) In Wave winding, Number of…

Q: 4- The step-down transformer ?

A: Electrical machines can be either generator, motors or transformers. They can be either Ac machines…

Q: de motors

A:

Q: An 8-pole, 460 V shunt motor has 600 lap-wound conductor. It takes 45 A from the supply mains and…

A:

Q: Q2- A 6 pole lap connected DC generator has 480 turns ,the resistance of each turn is 0.03 Q, the…

A:

Q: • the stator diameter is 40 cm. • the coil length is 40 cm. • there are 25 turns per coil. • the…

A: In the given question , we note that  The stator diametre is  = 40 cm  Coil length  = 40 cm  Number…

Q: How is the stator rotating magnetic field created in the three-phase induction motor? Explain.

A:

Q: Q2A: A 3-phase induction motor has a star-connected rotor. The rotor e.m.f. at standstill is 50 V.…

A:

Q: A 2 pole, three-phase, 50 Hz induction motor is rotating at a speed of Nr. Calculate: ) The speed at…

A: speed of rotating magnetic field is synchronous  speed Ns =120*frequencyno. of poles speed of rotor…

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.