464 INDEX 



PAGE 



Stray power in a dynamo-electric machine 190 



Synchronizing a-c. generators 262 



Synchronoscope 263 



Synchronous condenser 323 



converter, capacity of a 378 



compounding 381 



construction 367 



current in various armature coils 373 



^ heating of coils 376 



methods of starting 379 



voltage ratio of 369 



voltage ratio of the auxiliary poles 369 



used for power factor correction 386 



motor, equivalent circuit of 321 



operation of a 309 



phase characteristics 316 



phase shifting with change of load 325 



starting characteristics of 310 



Switch, air-break 406 



oil-break 407 



motor-operated 408 



Switchboard, general arrangement of 424 



Table of copper wire sizes 8 



Temperature coefficient of resistance 6 



rise dependent upon ventilation 139 



Three phase system, grouping of apparatus 401 



metering power 404 



weight of copper required, compared to single- 

 phase 398 



Three-wire generator 135 



system of distribution 136 



Time of short circuit for commutation 110 



Tirrill regulator 255 



Torque acting in a generator 150 



acting in a motor 151 



calculation of, in a c-c. motor 154 



development of, in the induction motor 339 



variation of, with armature current in c-c. motors 157 



Transformer, all-day efficiency of a 297 



auto 299 



commercial importance of 277 



