1) Explain why we fixed the ratio of V/f in experiment to control the speed of three phase induction motor by stator voltage variation and variable frequency supply?

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: load, ascertain whether it is running at lagging power factor or a leading power factor without the…

A: An AC motor is an electrical machine which takes AC electrical input energy and produces mechanical…

Q: b) Why the power factor of three-phase induction motor low at no-load and increase as applied load…

A: Power Factor = Real Power/Apparent Power,or p.f. = W/VA.Then the cosine of the resulting angle…

Q: Explain briefly the capacitor start single phase induction motor, how can you determine the value of…

A: Need to explain about capacitor start single phase induction motor and  find capacitor of maximum…

Q: 4: Explain the Speed Torque Characteristics of Three phase induction motor. Additionally, present a…

A: The Speed Torque Characteristics- 1. At no load condition, the rotor slip and frequency are very…

Q: A 2300-V, 3-phase, wye - connected, round rotor synchronous motor has a synchronous reactance of 3…

A:

Q: Explain how the loaded operation experiment of the induction motor is done by drawing the experiment…

A: The loaded operation experiment of the induction motor: The loaded operation on the induction motor…

Q: Q.2 a) Explain requirement of V/f control method of the induction motor for the below and above the…

A:

Q: "Explain why speed of a DC motor get affected on load, if its series field winding is connected…

A: DC motor emf equation is given as, E=NPϕZ60AN=EA60PϕZk=PZ60ASo, N=EKϕ The torque equation of the DC…

Q: a) Explain requirement of V/f control method of the induction motor for the below and above the base…

A: Hhhff

Q: Stator voltage control of IM The objective: The objective of this experiment is to present the speed…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 22- With neat diagram explain slip ring rotor of 3-phase induction motor. Also draw and explain the…

A: Slip ring rotor of 3-phase induction motor :-   The rotor of this motor consists of a cylindrical…

Q: in Three Phase Induction Motor Load Test , Plot the relationship between the current and all the…

A: 3-phase Induction Motor- When a three-phase stator displaced by 120 degrees (in the space of 120…

Q: Define the following AC Motors, the principles of operation and uses 1. Synchronous Motors 2.…

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Q: Discuss the ratios of no load current, and starting current of three phase induction motor to its…

A: The explanation and answer are as follows.

Q: 2. What are the methods of starting three phase induction motor?

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

Q: Explain the D.C resistance test to find the value of stator resistance of the star and delta…

A: DC Resistance Test:In the event that a DC voltage is applied to the stator terminals, there will be…

Q: Explain frequency control of 3 phase induction motor from voltage source with constant maximum…

A: According to the question we have to explain frequency control of the 3phase induction motor from…

Q: Q.2 a) Why do we use asynchronous word for asynchronous (induction) motors? b) How are the…

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Q: A single-phase induction motor has an auxiliary winding in which the diameters of the wires used are…

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Q: Answer by true or false * True False - In speed control of dc shunt motor, if the armature voltage…

A:

Q: xplain the working of Doubly Fed Induction Generator and its characteristics?

A: The working of Doubly Fed Induction Generator and its characteristics

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: b) Why the power factor of three-phase induction motor low at no-load and increase applied load…

A: In this question , we will write the reason of low power factor of induction motor at no load..

Q: A single phase synchronous motor gives an output of 9.46kW at 0.9pf lagging with 600V. If the stray…

A:

Q: ii) Analyse the superiority of the V/f method of speed control for three phase Induction Motor With…

A: The induction machine for the variable speed applications, especially the cage rotor type, is mostly…

Q: For a 3-phase, 4-pole, 50 Hz synchronous motor the frequency, no. of poles, and the load torque are…

A: Given: P1=4f1=50 Hz The number of poles, frequency and load torque is halved.

Q: Which of the following figures shows shunt DC motor? TITZG THE

A: Given & to find: Which of the following figures shows a shunt DC motor?

Q: Phasor Diagram of Salient Pole Synchronous Motor for unity power factor

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Q: Give a comparison among speed control methods of 3-Φ induction motor.

A: In order to implement variable speed drive in an induction motor we have to control the speed. There…

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: The rotor of a 50 Hz, 4 pole synchronous motor is directly coupled to rotor of 50 Hz, 6 pole…

A: Given- 50 Hz, 4 pole synchronous motor, 50 Hz, 6 pole induction motor.   To Find- The value of a…

Q: Suggest a suitable method to raise the speed of a de shunt motor

A: The speed of the shunt motor can be controlled in two ways.   1) Armature voltage control: You…

Q: A 6-pole, 50 Hz, 3-phase induction motor has rotor resistance and reactance per phase of 0.0 and 0.1…

A: In this question induction motor is given...We have to find out speed for torque maximum..And…

Q: a) What is the operating principle of induction motor?

A: As per the honour code I will only do part a question 1. Kindly repost the other questions again.…

Q: Give a comparison among speed control methods of 3-0 induction motor.

A:

Q: Draw and explain the equivalent circuit of a single-phase induction motor based on double field…

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Q: 4. In a three-phase induction motor power factor at starting is ..... while running. Why? 5. What…

A: 4) In three phase induction motor power factor at starting is low compared to power factor while…

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: 1. When a synchronous motor is at working condition, is there induced electromotive force in the…

A: This question is belongs to synchronous motors

Q: -Could you give examples where fast breaking of induction motor is required?

A: Braking of induction motor is nothing but a process to stop a induction motor. In braking Motor…

Q: Select the answer Questions: 1. Synchronous motor for power factor correction operates at a. No…

A: 1  we know that synchronous motor acts as synchronous         condensor under over excited…

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: Why it is not possible to start dc series motor without load?

A: In dc series motor motor, armature current is decided by the load. On light load or no load, the…

Q: what is the block rotor test of three phase induetion motor?     2-draw the equirlent circuit of…

A: In the blocked rotor test, it should be kept in mind that the applied voltage on the stator…

Q: Report 1- Sketch speed (y-axis) torque (x-axis) characteristics of compound DC motor for three…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

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.