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

Q: The direction of rotation of Series DC motor can be reversed by interchanging terminal(s). 1) Field…

A: The change in the flow of current divert the direction of the spinning force, due to this the…

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: 6- If a D.C. shunt motor is working at no load and if the shunt field circuit suddenly opens (a)…

A: The answer is option c.

Q: What is the synchronous speed of a motor that has four poles and is operating on 60 Hz?

A: Given:  Number of poles P = 4 Frequency F = 60 Hz We need to determine the synchronous speed of a…

Q: T or F, modify the wrong part if False, please underline twice your answer if True or False.  For a…

A: Total copper losses in shunt wound machine is sum of the armature copper losses and shunt field…

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: a 220 V DC shunt motor takes 3 A at no-load. It draws 25 a when running at full load at 1500 rpm.…

A: Diagram of dc shunt motor is drawn in below figure, From diagram field current is equal to, At no…

Q: Is it possible for load of a wye connected induction motor during the blocked rotor test to be…

A: In the blocked rotor test, a low voltage is applied which circulates a full load armature current…

Q: How is the direction of rotation changed of a split phase

A: Split phase motor consists of two windings 1. Main winding 2. Starting winding

Q: Why induction motor cannot run on synchronous speed? Explain using slip.

A: In an engine, simultaneous speed is the speed at which the attractive field pivots. Contingent upon…

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: 25. When a no-load test is conducted in an induction motor, what would happen to its circuit? a. the…

A: Given date ,  Testing of induction motor  About No load test and blocked rotor test. We know slip =(…

Q: What is the ratio of the outer cage torque to the inner cage torque of the indcution motor?

A: The equivalent circuit of the double induction 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: what is dc shunt and series motor?

A: Motor is an electrical machine which converts the electrical energy into mechanical energy. DC motor…

Q: A- Explain how you can control the speed of D.C shunt motor ?

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

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: 2. What is the function of starter for medium and large size Induction Motors?

A:

Q: 6. What Will Happen If The Direction Of Current At The Terminals Of A D.c Motor Is Reversed?

A:

Q: What is energy efficient induction motor and conventional indcuction motor?

A: Now a days, the demand of electricity is increasing day by day which requires additional power. Due…

Q: Why is it that the induction motor operate less than the synchronous speed?

A: The synchronous speed of an Induction motor can be explained as the speed of rotating magnetic field…

Q: Having salient poles on stator and rotor a switched reluctance motor is called.. machine O Smooth…

A: In this question , we will write having silent poles on stator and rotor, a switched reluctance…

Q: Explain brefily how induction motors works?

A: Given: Induction motor Required: Working of Induction motor

Q: Speed of de motor can be raised above normal speed by the flux (9) which can be implemented by shunt…

A: To implement a variable speed drive speed control of motor is necessary.

Q: Can an induction motor operate at the synchronous speed?Why?

A:

Q: 6) The speed of a d.c. motor can be controlled by varying its flux per pole or resistance of…

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

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: 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: What will happen if we do not fix the voltage of the D.C shunt motor as the load increases?

A: What will happen if we do not fix the voltage of the D.C shunt motor as the load increases?

Q: Which of the following type of motor isn't normally reversible? A. Repulsion-induction B. Shaded…

A: to identify and mark the option which is not reversible

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

A: This is belongs to synchronous motors

Q: - In speed control of dc shunt motor, the armature voltage drop has the great effect on speed

A: Speed of the dc shunt motor is directly proportional to back EMF of the motor if there will be…

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

A:

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: 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: I Short answer questions 1- What is the functions of interpoles? v 2- What is the chief advantage of…

A: 1.Interpoles are similar to main poles in terms of winding but these poles are small in structure…

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: How would you reverse the direction of rotation of an induction motor?

A: We can reverse the direction of rotation of an induction motor by changing the direction of rotating…

Q: 1- To control the speed of an induction motor, the supply frequency is reduced by 10%. For the same…

A: Given, To control the speed of an induction motor, the supply frequency is reduced by 10%.

Q: What is the reason why a synchronous motor can be found running at no load?

A: we need to explain synchronous 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: How does the saturation in the machine affect the speed of shunt motor?

A: Affect of saturation on the speed of shunt generator

Q: 1- What causes a three-phase motor to run backwards? 2- How we can reverse the direction of the…

A: Whenever the phase sequence of the motor is reversed it makes the motor to move backwards

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.