Electrical Drives
Question Bank
Unit :1
1) Advantages of electrical drives.
2)State essential part of electrical
drives.
3)What are the functions of power modulator?
4) Draw block diagram of electrical drive
and explain briefly function of each block.
5) What is electrical drive? Enlist
advantages of electrical drive.
6) Enlist factors to be considered for
selection of electrical drive.
Unit :2
1)Explain different types of load on
electrical drives.
2)Explain quadrilateral diagram of speed
and torque characteristic (four quadrant operation)
3)Write a note on load torque and its
classification.
4)Dynamic equation of motor load
combination.
5)Determination of moment of inertia of a
motor.
6)Write a note on stability of an
electrical drive.
Unit :3
As per the review questions given at the
end of ch. -3 in Electrical Drives – Tech max.
Unit :4
1) Explain self tuning control method.
2) Explain the Model Reference Adaptive
control.
3) Explain sliding mode control method.
Unit :5
1)
Explain the speed torque characteristic of DC series motor.
2) Explain the speed torque
characteristic of DC shunt motor.
Unit : 6
1) Explain d-q model of induction motor.
2) Explain constant flux speed control of
induction motor.
3) Explain concept of vector control of
3- ɸ induction motor.
4) Draw and explain block diagram of direct
vector control method in 3- ɸ induction motor.
5) Draw and explain block diagram of indirect
vector control method in 3- ɸ induction motor.
6) Explain how dynamic performance of 3- ɸ
induction motor can be converted like dynamic performance of separately excited
DC motor.
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