# EE6504 Electrical Machines-II Nov / Dec 2015 Important Questions

1

Anna University , Chennai

Department of B.E-Electrical and Electronics Engineering
Fifth Semester
EE6504 - Electrical Machines-II
Nov / Dec 2015 Important Questions
(Regulation 2013)

Credits :
Velammal Engineering College

Note :
(To be studied in the same order from 1 to 28 + problems, or atleast first 20 questions & problems for getting minimum pass. There is no guarantee that you will get pass mark by studying these questions. This is for students who find it difficult to study the entire syllabus, and they can study atleast these questions there may be a possibility to pass. Others should study the entire syllabus OR first study these questions, and then study the remaining. STUDY IN THE SAME SERIAL NUMBER ORDER GIVEN. DON’T   SHUFFLE)

1. Need for starters & All 5 types of AC motor starters in detail-Draw diagrams neatly (Unit-4 )
2. Speed control-stator side & Speed control-rotor side (Unit-4 )
3. Speed control –Cascade control, Injecting slip frequency voltage in rotor winding-Kramer’s system, Scherbius system, Slip-power recovery scheme (Unit-4 )
4. V & Inverted V curve (Unit- 2)
5. Methods of making synchronous motor self start. (Unit- 2)
6. Synchronous condenser (Unit-2 )
7. Hunting in synchronous motor (Unit- 2)
8. Explain : Double cage rotors, Induction generator, Synchronous induction motor. (Unit-3)
9. Torque equation & condition for max torque in 3 phase induction motor. (Unit-3)
10. Equivalent circuit of 3 phase induction motor(Unit- 3)
11. Torque slip characteristics of 3 phase induction motor (Unit-3)
12. Explain: Shaded pole induction motor, Linear reluctance motor, Repulsion motor , Hysteresis motor, AC series motor. (Unit-5)
13. EMF Equation of alternator. (Unit-1)
14. Construction & Operating principle of 3 phase alternator(Unit-1)
15. Methods of calculating voltage regulation of alternator-Procedure-EMF, MMF,ZPF & ASA methods (Unit-1)
16. Operating principle of synchronous motor (Unit- 2)
17. Why synchronous motor is not self starting. (Unit-2 )
18. Behaviour of synch motor for (i) Constant load & variable excitation (ii) Constant excitation & variable load (Unit-2 )
19. Split phase Induction motor-Capacitor start, capacitor start-run induction motor (Unit- 5)
20. Equivalent circuit of 1 phase induction motor (Unit- 5)
21. Explain why single phase induction motor is not self starting with the help of double
revolving field theory. (Unit- 5)
22. Braking in 3 phase induction motor.
23. Synchronization & parallel operation of alternator. (Unit- 1)
24. Two reaction theory & Slip test. (Unit- 1)
25. Separation of no load losses in induction motor (Unit- 3)
26. Construction operating principle of 3 phase induction motor (Unit- 3)
27. Power flow diagram of 3 phase induction motor (Unit- 3)
28. Procedure for drawing circle diagram (Unit- 3)
Problems in emf equation (Unit- 1), emf, mmf & zpf methods(Unit- 1), Power flow diagram(Unit- 3), circle diagram+problems (Unit- 3).

Attachment :
EM-II Nov Dec 2015 Important Questions - Vidyarthiplus.pdf (Size: 328.04 KB / Downloads: 2,877)