CONTENTS. 



PARA- 

 CHAPTER. PACE. GRAPH. 



I. The General Alternating-Current Transformer i 1-17 



II. A. The Character of the Magnetic Field in the Poly- 

 phase Motor ii 18-23 



B. The Formula for the Three-Phase-Curent Motor.. 15 24-28 



III. The Short-Circuit Current and the Leakage Factor... 19 29-38 



IV. The Leakage Factor 29 39-64 



V. Design of a Three-Phase-Current Motor for 200 



Horse-Power 42 65-93 



VI. The Single-Phase Motor 54 94- 1 1 o 



VII. Calculation of a Single-Phase-Current Motor 63 111-131 



VIII. The Polar Diagrams of the General Alternating-Cur- 

 rent Transformer 73 132-162 



Appendix 1 89 



Appendix II 96 



Appendix III 100 



