Explain in details why does the rotor of the three phase induction motor rotate, then determine the speed of the revolving field relative to i) stator field distribution ii) stator structure.
Q: Which of the following is the correct formula to determine the rotor frequency of a 3-phase…
A: In this question , we will write induction motor questions..
Q: b) A three-phase, 50 Hz, six pole induction motor runs at a no-load speed of 915 r/min. and…
A: The solution can be achieved as follows.
Q: Question 2 Explain in details why does the rotor of the three phase induction motor rotate, then…
A: three-phase induction rates at a slightly slower speed than the asynchronous speed of the…
Q: Why the rotor conductors of the squirrel cage rotor are short-circuited and in the case of slip-ring…
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Q: Explain in details why does the rotor of the three phase induction motor rotate, then determine the…
A: Need to find why rotor of induction motor rotate
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) Write four disadvantages of stator voltage speed control method of 3-phase Induction motor. (b)…
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Q: Explain this below quesitons; a) Compare the squirrel cage induction motor with the asynchronous…
A: Bartleby has policy to solve only first question. So for the solution of rest questions re-upload…
Q: Draw and explain the block diagram for speed control of an Induction machine by variable voltage…
A: Speed Control of IM There are many methods to control the speed of IM. Variable Voltage Control…
Q: Briefly discuss the changes in the power factor of a three-phase squirrel cage rotor induction motor…
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Q: Explain the rotating principle of a single phase induction motor.
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Q: This question refers to a three-phase induction motor. which statement are false (A) The slip speed…
A: According to question:
Q: Calculate the steps in a 5-section rotor starter induction motor. for a 3-phase Maximum starting…
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Q: Explain the difference between single phase and three phase induction motors with their application…
A: Explain the difference between single phase and three phase induction motors with their application…
Q: Explain any one method of speed control of Induction motor with respect to rotor side with diagram
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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: (b) A three-phase, 50 Hz, four poles induction motor runs at a no-load speed of 1350 r/min and…
A: This question belongs to electrical machine . It is based on the concept of slip of induction motor…
Q: Q4. What do you mean by circle diagram of a 3-phase induction motor? Answer the following: (i) (ii)…
A: A circle diagram, a graphical representation of the performance of an electrical machine. This is…
Q: 9. The synchronous speed of a three-Phase induction motor depends on the number of magnetic poles in…
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Q: A star-connected 3-phase synchronous motor operates at a frequency of 50 Hz and a line voltage of…
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Q: Q2. A. Explain why a single-phase induction motor requires a means of starting. B. Explain the…
A: Given: Single phase induction motor
Q: Briefly explain stator frequency speed control method of Induction motor.
A: The Synchronous speed of the induction motor is given by the formula: Ns=120×fP Where, f: Frequency…
Q: 5. What are the various methods of speed control of 3-phase induction motor?
A: Various speed control methods are possible for the three phase induction motor. such methods are…
Q: a) Explain the internal structure of an threephase induction motor. b) Explain the reason that…
A: Electrical machines can be either generators or motors. They can be either AC machines or DC…
Q: Explain torque speed/torque slip characteristics of 3 phase induction motor
A: Gives details about difference of torque and slip The ratio of difference of synchronous speed Ns…
Q: 4) Is the statement “An induction motor has the same physical stator as a synchronous machine, with…
A: Induction motor is single excited machine.synchronous motor is a doubly excited machine.Rotor of…
Q: A 3-phase, 4-pole, 230-V wound rotor induction motor (WRIM), has both its stator and rotor connected…
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Q: What are the factors that the induced voltage in three phase induction motor depends upon and…
A: Ans-: Factors depends on a magnitude of induced voltage is the change of magnetic flux & the…
Q: Question 3 Explain in detail the Starting of Induction Motors
A: According to question we have to explain in detail the starting of Induction Motors.
Q: wound for 6 polcs and is supplicd from Q)A3 phase induction motor 50-Hz system. Calculate 1. the…
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Q: How is the stator rotating magnetic field created in the three-phase induction motor? Explain.
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Q: Attempt the following: Draw and explain a complete equivalent circuit of single phase induction…
A: Objectives: To draw and discuss in detail the complete equivalent circuit of a single phase…
Q: Briefly explain stator frequency speed control method of induction motor
A: The speed control of an induction motor is done by varying synchronous speed. The synchronous speed…
Q: A 4-pole, 60 Hz, 3-phase induction motor has a blocked rotor reactance of 0.4 ohm per phase and the…
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Q: No load test was conducted on a three phase induction motor at different input voltages and the…
A: In induction motor, overall constant loss will be the sum of iron loss and mechanical loss. But…
Q: 25)I) i) Explain why the rotor speed of induction motor is less than the Synchronous Speed?
A: The induction motor do not run at the synchronous speed. The rotor speed is less than the sped of…
Q: f. An induction motor is running at the rated conditions. If the shaft load is now increased, how do…
A: If the shaft load of the induction motor is increased then how other quantities change ?
Q: A 3 hp, 3 phase, 4 pole, 400 V, 50 Hz induction motor runs atb1440 rpm, what will be frequency of…
A: Given, Number of poles, P= 4 Frequency, f= 50 Hz Speed of induction motor, Nr= 1440 rpm
Q: (b) A three-phase, 50 Hz, six pole induction motor runs at a no-load speed of 915 r/min. and…
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Q: 1. How can you reverse the direction of rotation of a synchronous motor? 2. What effect does varying…
A: 1. The direction of rotation of a synchronous motor can be reversed by interchanging any two of the…
Q: Draw and explain the equivalent circuit of a single-phase induction motor based on double field…
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Q: A 3-phase 400 V, 50 Hz, 6-pole star connected induction motor develops maximum torque at a speed of…
A: Given a 3-phase induction motor having, Number of poles, P= 6 Frequency, f= 50 Hz Speed at maximum…
Q: What do you mean by 'static', 'alternating', and 'rotating' magnetic field? Explain the…
A: The static magnetic field is the constant magnetic field that does not vary in space. The…
Q: Question 2 Explain in details why does the rotor of the three phase induction motor rotate, then…
A: three-phase induction rates at a slightly slower speed than the asynchronous speed of the…
Q: Compare the properties of induction motor and synchronous motor.
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Q: Indicate the relevant changes in induction motor performance (output power, speed, efficiency, power…
A: We are authorized to answer three subparts at a time.Since you have not mentioned which part you are…
Q: b) Briefly explain the differences between synchronous motors and induction motors. You should…
A: Difference between synchronous and asynchronous motors are :- Synchronous motor does not have slip.…
Q: How can the direction of rotation of a split-phase or capacitor-start induction motor be reversed?…
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- Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction motor? Explain your answer.1. Why the rotor flux is lagging with respect to stator flux of an induction motor? 2. How does a single-phase induction motor act as a two-phase motor? Is it required for starting of the single-phase induction motor?Q1. Answer the following question briefly (not more than 4 lines) Why the rotor conductors of the squirrel cage rotor are short-circuited and in the case of slip-ring induction motors, the rotor circuit is closed through resistors? Q2. A -3-phase, 8-pole induction motor is required to be operated at about 700 rpm. If supply frequency is 60 Hz, determine its actual speed if slip is 5%. *
- Review/Explain with the aid of sketches the following excitation methods for a synchronous motor. DC EXCITATION, DC BRUSHLESS, AC EXCITATION. Review/Explain three starting methods used with an induction motor.Explain in details why does the rotor of the three phase induction motor rotate, then determine the speed of the revolving field relative to i) stator field distribution ii) rotor structure.The full-load slip of 4-pole,60Hz,440v (line -to-line) three phase induction motor is 0.05. i.What is the speed of the rotating stator field?What is the frequencey (in Hz) of the rotor current. ii.When the output power of the motor is 90 hp at a speed of 1732rpm,rotational losses(which includes frictional and core losses) are 10,100W,while copper losses for both rotor and stator total 3700W.Determine the motor efficiency and line current,assuming the motor has a 0.8 pf lagging under these conditions.
- Draw and explain the equivalent circuit of a single-phase induction motor based on double field revolving theory. How can the performance of the motor be analysed?Calculate the steps in a 5-section rotor starter induction motor. for a 3-phase Maximum starting current = full load current, full load slip-1.8% with ring shorted, rotor resistance per phase 0.015.A 3-phase 440V, wye connected induction motor has a star-connected stator and delta connected rotor with a turns ratio of 10. The rotor resistance and standstill reactance per phase are 0.01Ω and 0.2Ω respectively, what should be the value of external resistance (in Ω) that must be inserted to the rotor circuit in order to obtain maximum torque at starting?
- The full load slip of a 4-pole, 60Hz, 440V (line-to-line) three phase induction motor is 0.05. (i). What is the speed of the rotating stating? What is the frequency (in Hz) of the rotor current? (ii). When the output power of the motor is 90 hp at a speed of 1732 rmp, rotational losses (which include frictional and core losses) are 10,100W, while copper losses for both the rotor and stator total 3700W. Determine the motor efficiency and line current, assuming the motor has a 0.8pf lagging under the conditions.what is the value of the torque of the 60Hz 4-pole induction motor at 1800rpm? In real life induction generator possible ?A three-phase, 50 Hz, four poles induction motor runs at a no-load speed of 1350 r/min and full-load speed is 1200 r/min.(i)Calculate the slip of the rotor at no-load and full-load conditions.(ii)Based on previous question results, calculate the electrical frequency of the rotor at no-load and full-load conditions.(iii)Calculate the speed regulation of this motor