Attempt the following: a- Draw and explain a completes equivalent circet of Single phase induction motor refer rotor to stator? b- Explain the power flow of three Phase Induction Motors ?
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) List three methods that can be used to control the speed of DC motors. Explain why one of the…
A: NOTE: “Since you have asked multiple question, we will solve the first question for you. If you want…
Q: g) Explain the differences between shunt-winding and repulsion-start type universal motors.
A: According to the question we have to explain the differences between shunt-winding repulsion-start…
Q: In Experiment Star-Delta Starting of 3-Phase Induction Motor, How it was made sure in the control…
A: Star-Delta starter: This method can only be applied to the motor where the stator of the motor is…
Q: List the methods of speed control of three phase induction motor from both stator and rotor sides?
A: The list of methods of speed control of three-phase induction motor from the stator side is as…
Q: 2)List the methods of speed control of three phase induction motor from both stator and rotor sides?
A: Since you posted the multiple question so I solve 2nd questions for you List of speed control from…
Q: What is the function of starter for medium and large size Induction Motors?
A: The motor not turns instantly when supply connected across because it provide a very small impedance…
Q: Explain why an induction motor can not run at synchronous speed?
A:
Q: in Speed Control of Three Phases I.M. by Variation of Rotor Resistance Explain why pole changing…
A: The speed control of the three-phase induction motor by the variation of rotor resistance: - The…
Q: Why the rotor conductors of the squirrel cage rotor are short-circuited and in the case of slip-ring…
A:
Q: a) Why do we use asynchronous word for asynchronous (induction) motors?
A: As per the honour code I will only attempt Q1. Kindly repost the other questions again. THANK YOU!!…
Q: In your opinion, what happens to the rotor speed and current when mechanical load on an induction…
A: Given induction motor we have to calculate effect on rotor speed and current.
Q: Attempt the following: a- Draw and explain a completes equivalent circuit of three phase induction…
A: a
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: Name three characteristics that make the synchronous motor different from an induction motor?
A:
Q: How does the value of stator current density influences on the efficiency of the induction Motor (
A: In this question we will write effect of stator current density on efficiency of induction motor...
Q: The no-load test: VNL=220 V, PNL=340 W, INL=6.2 A The locked-rotor test: VSC=54 V, PSC =430 W, ISC…
A: For star connected IL=IP R1=RDC2=0.625 Ω/phase locked rotor test ZSC=VSCISC=5415.2 =3.5 Ω…
Q: Explain the speed control methods of induction motors. write the answer with computer please
A: Speed control of Induction motor from Stator side: By changing the applied voltage: When the voltage…
Q: 2. What is the function of starter for medium and large size Induction Motors?
A:
Q: Q: The cumulative compound dc motor can give a high starting torque .why?
A: A cumulative compounds motor is that which when the shunt field flux made by the shunt winding aids…
Q: Why is the power factor of an induction motor calculated at full load/blocked rotor test?
A: Blocked Rotor Test A small voltage applied across the phase Full load current flow through the…
Q: d) Explain the difference between locked motor torque and the pull up torque of an induction motor.…
A: Locked rotor torque : The torque generated by an electrical motor, when it begins at rest or zero…
Q: Can single phase induction motor be self-started? Explain the operation of a capacitor run single…
A: The single-phase induction motor is not self-starting if we don't have auxiliary winding. The main…
Q: What are the speed control methods of induction motor?
A: Speed of the induction motor is given by, From the above equation, the speed of the motor can be…
Q: How does the equivalent circuit of an induction motor simplify to under blocked rotor conditions?…
A: Given: Equivalent Circuit of Induction motor:
Q: Why there is need of starter in the 3-phase induction motor?
A: At the Starting of 3-phase induction motor, If we apply rated voltage to Stator, very high current…
Q: 3- What is the function of a commutator in the DC motor?
A: DC motor converts electrical energy into mechanical energy.
Q: Briefly explain why a synchronous motor requires starting mechanism. Is there any starting problem…
A: The synchronous motor requires a starting mechanism because; - over a certain measure, synchronous…
Q: Outline the locked rotor and no load tests for an induction motor
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
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: Question No.24 An 4-pole 50 Hz induction motor with rotor resistance of 0.2 Q produces a maximum…
A: Given an induction motor with, Number of pole, P = 4 Frequency, f = 50 Hz Rotor resistance at…
Q: 8. Homework: I. What is the effect of load on the efficiency of an induction motor? I. Explain the…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: How to address the low starting torque issue of induction motor?
A: At the starting of an induction motor the machine have poor power factor of the rotor circuit and…
Q: 1- Give the main purpose of the no-load test in (3 - 0) squirrel cage induction motor?
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: 1-) Explain why and how star-delta starting is given to induction motors.
A: In case of induction motors we will use star delta starters . To turn on or turn off the…
Q: A 4-pole, 60 Hz, 3-phase induction motor has a blocked rotor reactance of 0.4 ohm per phase and the…
A:
Q: Is it possible for the line-line voltages of a wye connected induction motor during the blocked…
A: Blocked rotor test Less voltage applied to Each phase of motor Rotor are blocked Full load current…
Q: A 4-pole, 50 Hz, 3-phase induction motor has a rotor resistance / phase of 0.03 ohm and reactance of…
A: We have an 3-phase induction motor. Given data of motor, Pole (P) = 4 Frequency (f) = 50 Hz Rotor…
Q: Give a comparison among speed control methods of 3-0 induction motor.
A:
Q: Q1/ Answer Oaly Two : a) Why are induction motors called a synchronous ? b)Does the Cu loss affected…
A: According to question: As only two questions have been asked to solve so here question 'a' and…
Q: If static voltage of a squirrel cage induction motor is reduced to 50 percent of it's rated value,…
A: Given, The static voltage of a squirrel cage induction motor is reduced to 50 percent of it's rated…
Q: (B) Explain briefly the following Why the armature is connected as LAP winding with high torque low…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: We make( V/F) constant in speed control of three-phase induction motor in order to make motor torque…
A: SPEED CONTROL OF 3-PHASE INDUCTION MOTOR:- Variable frequency control: The Synchronous speed of an…
Q: Type your question here The rotor of a 4 pole, 50 Hz, slip ring induction motor has a resistance of…
A: As per our policy we can provide solution of first question only. As we have given: P=4f=50…
Q: Question is from book electric machine 1 topic induction motor We need to derive an oil burner with…
A: To derive the oil burner split phase induction motor is preferred which is a type of single phase…
Q: O Explain the reason how AC Commutator motor is operated with DC or single phase AC. e Explain how…
A: Commutator is feature of DC motor. However, AC motor with wound rotor with brushes and commutator…
Q: Explain the Starting of Single Phase Induction Motors?
A: According to the question we have to Explain the Starting of Single Phase Induction Motors
Q: 7-6. A three-phase, 60-Hz, four-pole induction motor runs at a no-load speed of 1790 r/min and a…
A: The solution can be achieved as follows.
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- What is the relationship between slip s) and load (Pa) in an induction motor? Please explain.I.What is the effect of load on the efficiency of an induction motor? II. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other? III. Derive an expression for the rotor copper loss in terms of slip and input to the rotor? IV. What are the various losses in an induction motor? On what factors do they depend? V. List the different types of stray load losses in an induction motor.1. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other?2. Derive an expression for the rotor copper loss in terms of slip and input to the rotor?3. What are the various losses in an induction motor? On what factors do they depend?4. List the different types of stray load losses in an induction motor.
- Examine the saddle torque of induction motors and the effect of different groove structures on the saddle torque.I. What is the effect of load on the efficiency of an induction motor? I. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other? II. Derive an expression for the rotor copper loss in terms of slip and input to the rotor? What are the various losses in an induction motor? On what IV. factors do they depend? V. List the different types of stray load losses in an induction motor.8. Homework: I. What is the effect of load on the efficiency of an induction motor? I. Explain the term air-gap power or power developed in the rotor and shaft power. How these terms are related to each other? III. Derive an expression for the rotor copper loss in terms of slip and input to the rotor? What are the various losses in an induction motor? On what IV. factors do they depend? V. List the different types of stray load losses in an induction motor.
- Would a positive-rotating harmonic or a your answer. negative-rotating harmonic be more harmful to an induction motor? ExplainWhat is a single - phase induction motor? How does a single- phase induction motor work? How do you test a single phase motor? Which capacitor is used in single phase motor? What are the advantages of single phase induction motor? What are the applications of single phase induction motor? How does an induction motor start? What are the differences between single and three phase I.M ? What are the types of induction motor? What is the difference between induction motor and normal motor? Why three-phase induction motor self start while single phase motor does not self start?What is the main difference between modern and classical induction motors?
- 1. a)Draw the winding diagram of a simplex 2-layer lap winding for a 4-pole generator with 20 coils. b)How do you define ‘back emf’ and speed regulation of a dc motor. Can you explain analytically what happens to the torque and speed of a motor when the flux is varied?We need to derive an oil burner with single phase induction motor. Suggestthe best type of single phase induction motor that can be suited for this purpose.Explain why you suggest this type of motor and also explain its working principlein detail with the help of cross field theory. Diagrams are necessary.1. a) Explain the internal structure of an threephase induction motor. b) Explain the reason that conductor bars of the rotor are placed inclined with respect to the horizontal axis. c) Explain the meaning of the slip rate. d) What is the difference of the wound rotor three phase induction motor. For what purpose is it used? e) Explain the losses in an three phase induction motor. f) Explain the locked motor torque. g) Explain the pull up torque. h) Explain the breakdown torque. i) Explain the rated(nominal) torque.