Friday, May 15, 2015

080280075 ELECTRIC DRIVES AND CONTROL BE EEE 2014 Question Paper

Anna University Coimbatore

Question Paper Code: 11256

B.E B.Tech. DEGREE EXAMINATION, MAY JUNE 2014.

Seventh Semester

Electrical and Electronics Engineering

080280075 - ELECTRIC DRIVES AND CONTROL

Time : Three hours

(Regulation 2008)

Answer ALL questions.

PART A - (10 x 2 = 20 marks)

1. List out the types of load torques.
2. What are the factors that influencing the selection of electric drives?
3. List out the advantages of chopper control fed drive.
4. What is TRC scheme?
5. List out the advantages of V/F control.
6. Compare Static and Scherbius drives.
7. What is self control mode of synchronous motor?
8. What happen to the performance of Ac motors if stator voltage control technique is adopted with frequency being constant?
9. What are the advantages of digital techniques in speed control?
10. Compare microprocessor and PLC based control of drives

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