Synchronous Machines

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Synchronous Machines (?????? ?????????)
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REFERENCES 1- V.K Mehta, Rohit Mehta Principles
of Electrical Machines, First Edition, S. Chand
Company Limited, 2002. (Chapters
1011) 2- B.L. Theraja, A.K. Theraja,
Electrical Technology, Twenty-third Edition,
McGraw- Hill, 2005.(Volume II (AC DC
Machines, Chapters 37 38) 3- Stephen J.
Chapman, Electric Machinery Fundamentals, Fifth
Edition, McGraw- Hill, 2012. (Chapters
45) 4- E. Fitzgerald, Charles Kingsley, Jr. and
Stephen D. Umans, Electric Machinery, Sixth
Edition, McGraw-Hill, 2003. (Chapter 5)
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Synchronous Machines 1. Introduction 2. Types
Of Synchronous Machines 3. Construction of
Alternator 4. Speed and Frequency 5. Alternator
Operation 6. E.M.F. Equation of an Alternator 7.
Armature Reaction in Alternator 8. Equivalent
Circuit of Cylindrical-Rotor Machines 9. Phasor
Diagrams of Unsaturated Cylindrical-Rotor Type
This chapter includes forty one topics, which
are
Synchronous Generators
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10. Synchronous Machine Characteristics
10.1 Open Circuit Characteristic (O.C.C)
10.2 Short Circuit Characteristic (S.C.C)
10.3 Zero-Power-Factor Characteristic
(Z.P.F.C) 11. Voltage Regulation 11.1
The Synchronous Impedance Method 11.2
Rotherts M.M.F or Ampere Turn Method
11.3 Zero Power Factor Method (Potier Method) 12.
Operation of a Salient Pole Synchronous
Machine 13. Effect of Salient Poles 14.
Two-Reactance Concept for Salient-Pole
Machines 15. Power and Torque in
Cylindrical-Rotor Machines 16. Power and Torque
in Salient-Pole Machines 17. Power angle
characteristic
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18. Parallel Operation of Alternators
18.1 Advantages of Parallel Operation of
Alternators 18.2 Conditions for
Paralleling Alternator with Infinite Busbars
18.3 Methods of Synchronization 19.
Synchronizing Action (i) Effect of speed
change (ii) Effect of inequality of
e.m.f.s. 20. Synchronizing Power and Torque of
Synchronous Machines 21. Effect of Load on
Synchronizing Power 22. Sharing of Load Currents
by Two Alternators in Parallel 23. Alternator on
Infinite Busbars (Distribution of Load)
(a) Effect of Change in Excitation (b)
Effect of Change in Steam Supply
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Synchronous Motors 24. Introduction 25.
Construction 26. Operating Principle 27. Making
Synchronous Motor Self-Starting 28. Equivalent
Circuit 29. Motor on Load 30. Pull-Out Torque 31.
Motor Phasor Diagram 32. Effect of Changing Field
Excitation at Constant Load 33. Phasor Diagrams
With Different Excitations 34. Power Relations
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35. Motor Torque 36. Mechanical Power Developed
By Motor 37. Power Factor of Synchronous
Motors 38. Synchronous Condenser 39. Applications
of Synchronous Motors 40. Steady-State Operating
Characteristics 40.1 Load Characteristics
40.2 Field Compounding Characteristics
40.3 V-Curves of Synchronous Motor 41.
Comparison of Synchronous and Induction Motors