INDEX 



415 



Flux, electrostatic, 4. 



magnetic, 43. 

 Force exerted by a magnetic field on 



an electric circuit, 49. 

 Form factor of alternating waves, 229. 

 Fractional-pitch windings, 150. 

 Frequency converter, 392. 



G 



General electromotive force equation 



of alternator, 249. 

 Graded insulation for cables, 36. 

 Gradient, potential, 11. 

 Grids, damping, 279. 



H 



Heating of rotary converter arma- 

 tures, 380. 



Hunting of alternators and synchro- 

 nous motors, 285. 



Hysteresis, 72. 



loss in armatures, 211. 

 in transformers, 307. 



Hysteretic constant, 74. 



Impedance, 131. 

 of transformer, 304. 

 synchronous, 261. 

 Induced charges of electricity, 7. 



currents, 49. 

 Inductance, 87. 

 mutual, 90. 

 of iron-clad circuits, 88. 



parallel wires, 97. 

 self, 90. 



in direct-current circuits, 92. 

 in alternating-current circuits, 



103. 



unit of, 88. 



Induction generator, 356. 

 motor, analysis by rectangular co- 

 ordinates, 348. 

 polyphase, 324. 

 single-phase, 350. 

 regulator, 320. 

 Inductor alternator, 225. 

 Tnterpoles, 173, 182. 

 inverted converter, 390. 



Joule's law, 75. 



Journal friction loss, 214. 



K 



Kirchoff's laws, 82. 



applied to alternating-current 

 circuits, 143. 



Laws of induction, 49. 



Limits of output of direct-current 



machines, 216. 

 Line-drop compensator, 288. 

 Losses in direct-current machines, 



210. 



mercury arc rectifier, 396. 



M 



Magnetic field, 43. 



energy stored in, 67. 

 stresses in, 69. 

 flux, 43. 



density, 43. 

 force, 43. 

 leakage, 162. 

 permeance, 48. 

 potential, 45. 

 reluctance, 46. 

 Magnetization, 42. 



laws of, 43. 



Magnetizing current of a trans- 

 former, 290. 



Magnetomotive force, 46. 

 of rotor, 331. 

 of solenoid, 58. 

 of stator, 329. 

 of unit current, 53. 

 unit of, 46. 

 Maximum torque of induction motor, 



339. 



Maxwell's corkscrew rule, 48. 

 Mercury arc rectifier, 393. 

 Multiple-circuit windings of alter- 

 nators, 248. 

 drum windings, 148. 

 Mutual inductance, 90. 



