Synchronous Machines Items basic to be .ppt

Synchronous Machines Items basic to be .ppt

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  1 Synchronous Machines Synchronous Machines ‫التزامنية‬‫(اآلالت‬ ‫التزامنية‬ ‫(اآلالت‬ ) )
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  2 REFERENCES 1- V.K Mehta,Rohit Mehta “Principles of Electrical Machines, First Edition”, S. Chand & Company Limited, 2002. (Chapters 10&11) 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 4&5) 4- E. Fitzgerald, Charles Kingsley, Jr. and Stephen D. Umans, “Electric Machinery, Sixth Edition”, McGraw-Hill, 2003. (Chapter 5)
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  3 Synchronous Machines Synchronous Machines 1.Introduction 1. Introduction 2 2 . . Types Of Synchronous Machines Types Of Synchronous Machines 3 3 . . Construction of Construction of Alternator Alternator 4 4 . . Speed and Frequency Speed and Frequency 5. Alternator Operation 5. Alternator Operation 6 6 . . E.M.F. Equation of an Alternator E.M.F. Equation of an Alternator 7 7 . . Armature Reaction in Alternator Armature Reaction in Alternator 8 8 . . Equivalent Circuit of Cylindrical-Rotor Machines Equivalent Circuit of Cylindrical-Rotor Machines 9 9 . . Phasor Diagrams of Unsaturated Cylindrical-Rotor Type Phasor Diagrams of Unsaturated Cylindrical-Rotor Type This chapter includes forty one topics, which are : Synchronous Generators
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  4 10 10 . . Synchronous Machine Characteristics SynchronousMachine 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. Voltage Regulation 11.1 The Synchronous Impedance Method 11.2 Rothert’s M.M.F or Ampere Turn Method 11.3 Zero Power Factor Method (Potier Method) 12 12 . . Operation of a Salient Pole Synchronous Machine Operation of a Salient Pole Synchronous Machine 13 13 . . Effect of Salient Poles Effect of Salient Poles 14 14 . . Two-Reactance Concept for Salient-Pole Machines Two-Reactance Concept for Salient-Pole Machines 15 15 . . Power and Torque in Cylindrical-Rotor Machines Power and Torque in Cylindrical-Rotor Machines 16 16 . . Power and Torque in Salient-Pole Machines Power and Torque in Salient-Pole Machines 17 17 . . Power angle characteristic Power angle characteristic
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  5 18 18 . . Parallel Operation ofAlternators 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 19. Synchronizing Action ( i ) Effect of speed change (ii) Effect of inequality of e.m.f.s. 20 20 . . Synchronizing Power and Torque of Synchronous Machines Synchronizing Power and Torque of Synchronous Machines 21 21 . . Effect of Load on Synchronizing Power Effect of Load on Synchronizing Power 22 22 . . Sharing of Load Currents by Two Alternators in Parallel Sharing of Load Currents by Two Alternators in Parallel 23 23 . . Alternator on Infinite Busbars ( Alternator on Infinite Busbars (Distribution of Load Distribution of Load) ) (a) Effect of Change in Excitation (b) Effect of Change in Steam Supply
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  6 Synchronous Motors 24 24 . . Introduction Introduction 25 25 . . Construction Construction 26 26 . . Operating Principle OperatingPrinciple 27 27 . . Making Synchronous Motor Self-Starting Making Synchronous Motor Self-Starting 28 28 . . Equivalent Circuit Equivalent Circuit 29 29 . . Motor on Load Motor on Load 30 30 . . Pull-Out Torque Pull-Out Torque 31 31 . . Motor Phasor Diagram Motor Phasor Diagram 32 32 . . Effect of Changing Field Excitation at Constant Load Effect of Changing Field Excitation at Constant Load 33 33 . . Phasor Diagrams With Different Excitations Phasor Diagrams With Different Excitations 34 34 . . Power Relations Power Relations
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  7 35. Motor Torque 35.Motor Torque 36 36 . . Mechanical Power Developed By Motor Mechanical Power Developed By Motor 37 37 . . Power Factor of Synchronous Motors Power Factor of Synchronous Motors 38 38 . . Synchronous Condenser Synchronous Condenser 39 39 . . Applications of Synchronous Motors Applications of Synchronous Motors 40 40 . . Steady-State Operating Characteristics Steady-State Operating Characteristics 40.1 Load Characteristics 40.2 Field Compounding Characteristics 40.3 V-Curves of Synchronous Motor 41 41 . . Comparison of Synchronous and Induction Motors Comparison of Synchronous and Induction Motors