Induction motor is self starting or not?

Q: Why will the rotor of a wound-rotor motor not turn if the rotor circuit is left open with no…

A: An induction motor consists of two major parts, a rotor and a stator. The stator consists of a three…

Q: Why not self starting induction motor?

A: Induction motor- An induction motor is an electric motor that works on the method of electromagnetic…

Q: Why is a starting resistor needed to bring a motor up to speed?

A: The motor not turns on instantly when you connect supply across because it provide a very small…

Q: The rotor of a certain 20Hp,six-pole, 60HZ induction motor has

A: NOTE- “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: In DC shunt motor when speed increases, the back emf will zero remains same decrease increase

A: From the emf equation of DC machine, ε=PϕZN60A Where, ε is emf, P is number of poles, ϕ is flux per…

Q: Why should the D.C series motor not be operated at no load and light load?

A: For a dc series motor , armature winding is in series with field winding ,which means armature…

Q: w can the direction of rotation of a DC unt motor be reversed?

A: DC shunt motor provides constant speed regardless of load.

Q: The field winding of a shunt motor has a resistance of 110Ω and the voltage applied is 220V.What is…

A: For the Given Shunt Motor,

Q: Synchronous motor when the load is taken completely while working at full load in all properties…

A: Synchronous motor is constant speed motor always rotates at synchronous speed Ns =120fP

Q: If the blocked rotor test is to be performed on a wound rotor motor, and if the rotor winding is…

A: If the blocked rotor test is to be performed on a wound rotor motor, and if the rotor winding is…

Q: Explain the effect of the generated emf of a d.c. motor and why a d.c motor starter is necessary.

A: Electrical machines are distinguished on the basis of their supply. There are AC machines for AC…

Q: Explain why reduced current is important during the motor acceleration

A: Reduced current is important during motor acceleration because the current is very during starting…

Q: What are the effects of slip in the slip-ring induction motor? A. No effects B. Changes the change…

A: Given statement:→What are the effects of slip in the slip-ring induction motor.given options to…

Q: How do you reverse the direction of rotation of a d.c. shunt motor?

A: The DC shunt motor has four terminals as stated below. a) two terminals of armature winding (A1 and…

Q: How the driving torque increases when the DC motor is suddenly loaded.

A: Torque produced in DC machine (separately/shunt ) is proportional to Flux per pole and armature…

Q: By looking at which part of the motor, it can be easily confirmed that a particular motor is a DC…

A: In this question we need to choose a correct option

Q: 5 -Why it is not possible to start the d. C. series motor without load ?

A: As per Bartleby guidelines we are allowed to solve only one question,please ask the rest again. The…

Q: What is the difference between torque of (1- 0) induction motor & torque of (3- 0) induction motor…

A: Given that  What is the difference between torque of single phase induction motor & torque of…

Q: List some applications where-in forward reverse motor control are utilized.

A: To list out the applications of forward  reverse motor control

Q: A 4 pole, 500V shunt motor has 720 wave connected conductors on its armature. The full load armature…

A: The solution is given below

Q: The starting current of an induction motor is 5 times the full load current while the full load slip…

A: Given, The starting current of an induction motor is 5 times the full load current. Ist=5 Ifl Full…

Q: At what speed will a 12-pole, 50-cycle induction motor operate if the slip is 0.1

A: In this question, what speed will a 12-pole, 50-cycle induction motor operate?    if the slip is 0.1…

Q: Why starters are used for DC motors. * Your answer

A: Starter is a device which is used to start DC motors.

Q: A switched reluctance motor has salient poles on ..................... a. neither stator or rotor b.…

A: Option B: A switched reluctance motor has salient poles on both the stator and the rotor A Switched…

Q: NEED IN 5 MINS URGENT PLEASEEE :(( At what speed will a 12-pole, 50-cycle induction motor operate…

A: The slip of induction motor s=synchronous speed-rotor speed/synchronous speed Synchronous speed=120…

Q: When a series dc motor is operated without a load, which of the following conditions occurs? The…

A:

Q: what is doubly fed induction motor how it works and also examples based on this motor.

A:

Q: Induction motor speed control technique with bad torque response to sudden changes is O V-F control…

A: Induction motor speed control technique with bad torque response to sudden changes is...

Q: How to avoid the effect of the high current at starting of the Motor? a. variable resistor is…

A: The induction motor takes a very high starting current so it is required to minimize the starting…

Q: 5-Which of the following statements regarding single phase induction motors correct? (a) It requires…

A:

Q: Questions: 1-why does the speed fall slightly when the d.c. shunt motor is loaded?

A: Since you have posted multiple questions and not specified which question to solve. We will solve…

Q: 6. A 4 pole, 500V shunt motor has 720 wave connected conductors on its armature. The full load…

A: The solution is given below

Q: If you are troubleshooting a motor, and one phase indicates a high amperage, what is the most likely…

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

Q: What is the value of value of motor speed when three phase induction motor is at starting condition?

A: The speed of the motor is measured by using the tachometer.

Q: what is slip ring induction motor ?

A: Slip ring induction motor: This particular type of motor has some rings connecting its exterior…

Q: Vhat is the difference of the wound rotor three phase induction motor. For what purpose is it used?…

A: (i) A wound rotor motor is a variation of the three-phase induction motor, designed to provide high…

Q: 1.The other possible methods of starting 3-phase induction motors. 2.How it was made sure in the…

A: 1)To give the possible methods of starting three phase induction motor 2) To provide the circuit…

Q: A 3 phase 4 pole 400 volt 50 Hz induction motor is operating with slip 0.03. What is value of speed…

A: Given: A 3-phase 400 V induction motor having P=4f=50 Hzs=0.03

Q: How can a shaded-pole motor be reversed?

A: Here  it is given that how can we reverse the shaded pole motor

Q: What is the purpose of the split-ring commutator in an electric motor that operates on DC power?

A: The electric device that uses electrical power input and the rotor stator set, to convert the…

Q: Starters are used in induction motor because It can not run in reverse direction It is run against…

A: In this question we need to choose a correct option

Q: The starting current of a 15-hp, 440 volt, and three-phase induction motor is 32 amperes when rated…

A: Three phase induction motor is convert the electrical input to mechanical output. Three phase…

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.