For what purpose is the short circuit test performed in asynchronous motor? Please explain.

Q: No-load speed of which of the ollowing DC motor will be highest? *

A: For DC motor Eb∝Nφ Eb is back emf N is speed φ magnetic flux For DC series motor at no load current…

Q: Draw Star/Delta control and power circuit diagram for 3 Phase Induction motor?

A: Power circuit requires 440V whereas the control circuit requires 220vac ,120vac or 24vdc depending…

Q: Explain how you can adjust the speed of the asynchronous motor to different values, provided that…

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Q: Please give me recommandation of brushless dc motor

A: RECOMMENDATIONS OF BRUSHLESS DC MOTOR: 1. Brushless DC motors (also called as BLDC motors as well as…

Q: Q/ How does the synchronous motor work? Why can't the synchronous motor start on its own?

A: This is a good question based on simple electrical machine. And the chapter is basic circuit of…

Q: What will happen if we run the motor at nominal load without starting? Please observe and explain…

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Q: a) Compare the squirrel cage asynchronous motor with the asynchronous slip ring induction    write…

A: Asynchronous motor are the motors whose speed is not equal to synchronous speed . They are also know…

Q: Why is it not a good idea to use circuit protection devices to protect large motors from overload…

A: According to the question we have to discuss why it is not good idea to use circuit protection…

Q: Q/ Explain how can the power factor of a synchronous motor be changed from Leading to lagging or…

A: Leading power factor- this power factor is used, when the load current leads the supply voltage.…

Q: lue increase as the torque value increases?

A: An asynchronous motor is also known as an induction motor. A three-phase balanced supply is provided…

Q: In Synchronous Motor Operation How the regulating characteristics can be obtained from V curve?

A: The V curve is the graph between the stator current and the field current for different loads on the…

Q: Explain what are the values ​​to be taken into account in the Y / ∆ starting asynchronous motor…

A: Following values must be taken in account in star delta starting of asynchronous motor Voltage- it…

Q: Q1 A) what happen If the electrolytic capacitor is short circuit in The Single Phase Motors which…

A: Answer (A): Electrolyte capacitor is a starting capacitor used in the single phase induction motor.…

Q: Which dc motor is used in fan?

A: In the fans, DC and AC, both motors are used depending on their use. In AC fans, mainly single-phase…

Q: What effect does varying the DC incitation have on the stator currents of a synchronous motor?

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

Q: hematic diagram for No - load test on three phase induction motor. Which loss in the machine is…

A: No Load Test: We can find core losses by conducting no-load test. As core losses depends on Voltage…

Q: is the following correct? True or false? In order to change the rotation direction of the…

A: In order to change the rotation direction of the asynchronous motor, it can be reversed by any two…

Q: What is meant by generator black-start capability, why is it needed, and what types of generators…

A: When a station is allowed to generate their own power for enabling it to restart after the fault in…

Q: In short, answer the next question: How can determine whether the 3phase induction motor is working…

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Q: electrical machines (How does an asynchronous motor behave when there is a load?) explain by…

A: Answer

Q: In In Star-Delta Starting of 3-Phase Induction Motor How it was made sure in the control circuit…

A: In this question , star delta starting of 3 phase induction motor how star and delta contactors…

Q: a) Does the slip increase as the load increases in an asynchronous motor? Explain what is the reason…

A: let  Ns = synchronous speed N = Actual speed  S = Slip

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: 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: 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: 26- What is the voltage control technique used with very high-slip 1 induction motor? 27- How the…

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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: in a DC motor why and how the gain K is affected by the amaurtue resistant and induance ? whats the…

A: For DC motor the emf equation is given as:

Q: Attempt the following: a- Draw and explain a completes equivalent circet of Single phase induction…

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

Q: Why the dc shunt motor running at the infinity speed?

A: In this question , we will write about how dc shunt motor running at infinite speed..

Q: With the aid of a diagram explain the principle of operation of a three phase asynchronous motor.

A: We know that when a three phase supply is provided to the stator, a 3-phase rotating magnetic field…

Q: in Blocked rotor test of three phase Induction motor. Which loss in the machine is significant in…

A: Blocked rotor test of three phase induction motor is used to obtain the series parameters of the…

Q: What is the relationship between asynchronous motor speed (n), load (Pa)?

A: In the induction motor  relationship between asynchronous motor speed (n) and load  power Pa

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: idle running test of asynchronous motor Locked rotor test of asynchronous motor Briefly describe…

A: The asynchronous motor also knows as Induction motors. In order to determine induction motor…

Q: Explain how we can use  the frequency for  speed control of the asynchronous motor. And describe the…

A: consider the given question;

Q: a) Does the slip increase as the load increases in an asynchronous motor? What is the reason of…

A: Ans (a) In induction motor , Rotating magnetic field of a stator winding passes through a rotor…

Q: Why can’t Synchronous motor start by itself. What techniques are available to start a synchronous…

A: Synchronous motor can not start by itself and the reason is, When a stationary rotor is fed by a DC…

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: Explain why pole changing method of speed control cannot be used for slip ring induction motor?

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Q: What is the main precaution feature of running the series - wound de motor? Explain with the aid of…

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Q: In dc motor why the value of the starting current is high in starting.

A: DC motor is a device which runs on the DC supply.