INDEX 





Regulation, of Iternator, synchron- 

 ous impedance method of 

 determining, 14J 

 vector diagram of, 146 



ted, 152 



of transformer, 193 

 Regulator, induction, 275 



Tin-ill. 161 



Repulsion-induction (RI) motor,303 

 Repulsion motor, 286 



characteristics of, 292 

 compensating field of, 291 

 conditions necessary for opera- 

 tion, 288 



direction of rotation of, 290 

 effect of brush position on 



torque, 290 



principle of operation, 287 

 sparking of, 292 

 transformer field of, 291 

 Resistance, alternator armature, 130 

 copper wire, 464 

 effective armature, 1 11 

 equivalent value in transformer, 



184 

 in alternating-current circuits, 



25, 32, 34, 36. 10 

 Resonance, parallel cirm 



series circuit, 38 



Root-mean-square value of alternat- 

 ing-current, 10 

 determination for any 



wave shape, 10 



Rotating field, of alternator, 99 

 of induction motor, 227 



reversal of direction of, 



234 



drum winding 

 thn-.-pha.se ring wind- 

 ing, 231 

 two-phase ring winding. 



280 



stm< . 115 



of induction i 



freqi: :. 236 



induce.) ele 



2M 



Rotor of induction motor, speed of, 



232 



squirrel-cage, I'll 

 wound, 253 



with ntornnl starting resis- 

 tance, 257 

 Rousseau diagram, 440 



S 



Salient poles, 116 



Scalar*. 12 



Scherbius' method of indu 



motor speed control, 259 

 Scott-connect ion of t ransformere, 214 

 Secondary leakage flux of trans- 

 former. 179 



Sec tionali zing switch, 368 

 Self-cooled transformers, 199 



with radiators on tank, 201 

 with tubular tank, 200 

 Series, booster, 359 



circuits (see Alternating-current 



circuits), 25 

 resonance in, 38 

 motor, 279 



applications, 286 

 armature si/.e of, 281 



288 



compensation for armature 

 reaction, -jsi 

 JS2 

 indu 

 field structure requirements, 



380 



field winding of. 280 



fre.pirt JSO 



op diagram of, 284 



I pole. met! 



single-phase indu. 



on i: 

 64 

 Sharp-Millar photometer, 438 



She! 195 



mat or, 150 



utffonna 



