CONTENTS xi 



PAGE 



CHAPTER IV. OPERATION OF SYNCHRONOUS MOTORS. HUNT- 

 ING 106 



Starting by Direct Current Starting with Alternating Current by 

 Polyphase Motors Synchronism Observations on the E.M.F. Induced 

 in the Poles Accessory Starting Apparatus. Installation of Syn- 

 chronous Motors Starting of Single-Phase Machines Theory of Initial 

 Synchronizing Separate Excitation Field Due to a Commutated Cur- 

 rent Oscillations of Synchronous Motors Short-Period Oscillations 

 Damping of Oscillations Long-Period Oscillations. 



CHAPTER V. TESTS or SYNCHRONOUS MOTORS 132 



Characteristic Curves Measurement of Efficiency Experimental 

 Tests Advantages and Disadvantages of Synchronous Motors. 



CHAPTER VI. OTHER MOTORS OPERATING SYNCHRONOUSLY 



WITHOUT DIRECT-CURRENT EXCITATION 141 



Reaction Synchronous Motors Synchronous Motor with Alternating 

 Fields. 



CHAPTER VII. BIPOLAR DIAGRAM OF THE SECOND KIND IN 



AMPERE-TURNS 147 



Introduction Diagram Transformations E.M.F. Diagram Approxi- 

 mate Diagram Extreme Cases Mechanical Analogue Length of 

 Air-Gap. 



CHAPTER VIII. GENERALIZATION OF DIAGRAM FOR COUPLED 



SYNCHRONOUS MACHINES .. . 166 



PART II 



CHAPTER I. GENERAL DIAGRAMS DEDUCED FROM THE DIAGRAM 



FOR SYNCHRONOUS MOTORS 172 



Introduction Notation Generalities. Reduction of all Armature 

 Reactions to the Single Direct Reaction Factors Determining the 

 Practical Conditions of Operators. 



