Important RGPV Question
EX- 802 (B) Special Machine
VIII Sem, EX
UNIT 1-Stepper Motors
Q.1) Explain how to control load angle in Stepper Motor.
(RGPV May 2022)
Q.2) Differentiate between permanent and hybrid stepper motor.
(RGPV May 2022)
Q.3) List the important features of Stepper motors.
(RGPV May 2022)
Q.4) Discuss speed control methods of Stepper Motor.
(RGPV May 2022)
Q.5) Explain how load angle is controlled in Stepper Motor.
(RGPV Dec 2020)
Q.6) Describe the VR and PM rotor structures and their torque production along with their torque angle characteristics.
(RGPV Dec 2020)
Q.7) Discuss the torque -pulse rate characteristics of stepper motor. Enumerate the features that the drive circuit for a stepper motor should posses for optimum torque output.
(RGPV June 2020)
Q.8) Write the comparison between variable reluctance and permanent magnet stepper motor.
(RGPV June 2020)
Q.9) What are the important features of stepper motor?
(RGPV June 2020)
UNIT 2-Switched Reluctance Motor
Q.1) Describe operating principle of switched reluctance motor. Also explain torque development with angle torque characteristics.
(RGPV May 2022)
Q.2) Explain the shaft position sensor in the Switched Reluctance Motor.
(RGPV May 2022)
Q.3) How dynamic torque is produced in switched Reluctance Motor.
(RGPV Dec 2020)
Q.4) Derive Torque Produced in Reluctance Motor.
(RGPV Dec 2020)
Q.5) Give the principle of operation of switched reluctance motor. How the torque is produced explain in brief with the help of expression? Also explain shaft position sensing.
(RGPV June 2020)
UNIT 3-BrushLess DC Motor Construction And Principle
Q.1) Discuss the construction and working principle of permanent magnet brushless DC motor. Also draw its torque speed characteristics.
(RGPV May 2022)
Q.2) Explain series and parallel winding pattern of Brushless DC motor.
(RGPV May 2022)
Q.3) Explain advantages and disadvantages of Solid Rotor.
(RGPV May 2022)
Q.4) Explain the advantages and disadvantages of Solid Rotors.
(RGPV Dec 2020)
Q.5) Explain the construction and principle of operation of Brush Less DC Motor. What do you mean by winding pattern series and parallel.
(RGPV Dec 2020)
Q.6) Explain how the speed of brushless DC motor is controlled?
(RGPV June 2020)
UNIT 4-Permanent Magnet Materials And Circuits
Q.1) Give application of permanent magnet synchronous motor.
(RGPV May 2022)
Q.2) Explain any applications of Permanent Magnet Synchronous Motor.
(RGPV Dec 2020)
Q.3) Write the short note on any two of the following.
a) Design parameter of DC Brushed Motor
b) Speed control of DC Brushed motor
c) Permanent magnet material
(RGPV Dec 2020)
Q.4) What are the different applications of permanent magnet DC motor?
(RGPV June 2020)
Q.5) Write a short note on the following.
a) Design parameter of DC brushed motor
b) Permanent magnet material
(RGPV June 2020)
UNIT 5-PM Synchronous Motors
Q.1) Explain commutation and armature reaction in the PMBLDC motor.
(RGPV May 2022)
Q.2) Give details of sensor less control of PM synchronous motor.
(RGPV May 2022)
Q.3) Describe the methods to reduce the torque pulsation in the PM synchronous motor.
(RGPV May 2022)
Q.4) Explain speed control methods of PM Synchronous Motor.
(RGPV May 2022)
Q.5) How to reduce the Torque Pulsations in Permanent magnet Synchronous Motor.
(RGPV Dec 2020)
Q.6) In detail explain sensor less control of Permanent Magnet Synchronous Motor.
(RGPV Dec 2020)
Q.7) Explain the PM synchronous motor construction and operation along with speed control and give its applications.
(RGPV Dec 2020)
Q.8) Explain the PM synchronous motor construction and operation along with speed control and give its applications.
(RGPV June 2020)
Extra Questions-
Q.1) Explain the following (any two)
a) Power electronic converter of stepper motor.
b) Sensor less control of permanent magnet synchronous motor.
c) Advantage and disadvantage of solid rotors.
(RGPV June 2020)
— Best of Luck for Exam —
