INDEX 



(Tlie numltert refer to par/eg) 



Absorption dynamometers, 204 



Admittance, 20 



Ageing of transformer core, 107, 171 



Air-blast transformers, 110 



Air-friction dynamometer, 205 



Air-gap in induction motors, 126; air-gap 

 induction in alternators, 93 



Alexanderson, efficiency test of induction 

 motor, 215 



Alternating vector, 4 ; alternating wave of 

 magnetic flux, 36, 39 



Alternator, 78; efficiency test of, 172; 

 heating test of, 175; Heyland, 266; 

 Latour, 265 ; no-load louses of, 173 ; 

 standard type of, 82 ; testing connections 

 of newly installed, 150 ; used as syn- 

 chronous motor, 127 



Ammeters, 60 



Amortisseur, 138 



Ampere-turn method of pre-determining 

 regulation of alternators, 156 



Amplitude, 5, 6 ; amplitude factor, 2, 7 



Analysis of alternating into rotating 

 waves, and vice versa, 39 



Angle of phase difference, 5 



Armature, construction of alternator, 83 ; 

 relative outputs of continuous-current, 

 when generating continuous current, 

 single-, two-, and three-phase currents, 

 240 ; and as converter, 251 ; reaction in 

 alternators, 96 ; analysis of self-induc- 

 tance of, into two components, 1 58 ; 

 windings of alternators, 88 



Ashworth, retardation method of deter- 

 mining losses in alternator, 174 



Astatic wattmeter, 71 



Asymmetry of hemi-tropic winding with 

 odd number of pole-pairs, 124 



Asynchronous generator, 225 



Atkinson's repulsion motors, 283 



Ayrton, use of condensers in connection 

 with voltmeters, 67 ; and Mather 

 electrostatic voltmeter, 66 



r, 



Balanced polyphase system, 31 ; balanced 

 three-phase circuit, 55 



liar winding for rotor, 117 



Behn-Esnhenburg, dispersion coefficient 

 of induction motor, 182; pre-deter- 

 inination of regulation of alternator, 

 151 



Bchrend, alternator testing, 175 ; leakage 

 coefficients of induction motor, 182 



Berry, transformer, 103; transformer 

 reactance, 166 



Blanc, F., friction loss in induction 

 motors, 212 



Blondel, analysis of armature reactance 

 into two components, 160; leakage co- 

 efficients of induction motor, 182; 

 oscillograph, 7:! 



Brake testa of induction motors, 204 



Brush-lifting devices for rotors, 121 



Capacity in alternating current circuit, 

 11 ; effect of, in wattmeter, 47 



Carhart, separation of core losses, 169 



Cascade or tandem method of speed 

 control, 226 



Cases for transformers, 110 



Choking coils, 114 



Circle diagram of induction generator, 

 222 ; of induction motor, 188 ; Heyland's, 

 194 ; of series motor, 273 



Clock-face diagram. 4 



Coil winding for rotor, 117 



Commutator motors, 259, 271 



Compaiison of single-, two-, and three- 

 phase systems, 36 



Compensated induction motor, 259 ; speed 

 control of, 263, 264 ; compensated 

 repulsion motor, 282; compensated 

 series motor, 277 



Compensator, 111 



