Wednesday, October 29, 2014

EE1251 Electrical Machines - II Fourth Semester Anna University Chennai, B.E EEE April May 2010 Question Paper

Anna University, Chennai

B.E./B.Tech Degree Examination Apr/May 2010

Fourth Semester

Electrical and Electronics Engineering

EE 1251 - Electrical Machines - II

(Regulation 2004)

(Common to BE. (Part-Time) Third Semester - Electrical and Electronics Engineering

Regulation 2005)

Time : 3 hours Max. Marks: 100

Answer all questions

Part - A (10 x 2 = 20 marks)

1. Explain why an alternator with low value of Short Circuit Ratio has lower limit of stability.

2. What is the necessity for short chording the armature winding of synchronous machines?

3. What are the main .parts of synchronous motor?

4. Mention the need for starters in synchronous motors.

5. At what value of slip does the torque developed is maximum?

6. Why the stator core of induction motor made of silicon content steel stamping

7. Name the method of speed control used only for Slip ring induction motor.

8. What is the disadvantage of rotor rheostat speed control method?

9. Why is a single phase induction motor not self-starting?

10. State the applications of shaded pole single phase induction motor.

PART-B (5 X 16 = 80 MARKS)

Duraimani

B.E Civil Engineer Graduated from Government College of Engineering Tirunelveli in the year 2016. She has developed this website for the welfare of students community not only for students under Anna University Chennai, but for all universities located in India. That's why her website is named as www.IndianUniversityQuestionPapers.com . If you don't find any study materials that you are looking for, you may intimate her through contact page of this website to know her so that it will be useful for providing them as early as possible. You can also share your own study materials and it can be published in this website after verification and reviewing. Thank you!