INDEX 



289 



.starting resistance for in- 

 duction motor, 121 



Kapp, diagram for variation of drop with 

 |K>wer factor, 154; e.ni.f. of alternator, 

 H5 ; method of pre-detcrmining regu- 

 lation of transformer, 151 



Ki-lvin, astatic wattmeter, 71; balances, 

 itf ; volt balance, 67; voltmeters, ;:; 



KintinT. liigh voltage electroBtatic instru- 

 ment, 'is 



La?, 5 



Latour, alternator, 265; compensated 

 induction motor, 259 ; arrangement of 

 brushes in repulsion motor, 281, 282 



Lead, 5 



Leakage coefficients of induction motor, 

 181; leakage self-inductance of alter- 

 nator armature, lf>8 



Leblanc, amortisseur, l.'IS 



Lenz's law, 7 



Lewis, induction motor, 121 



Line current and phase current, 34 ; line 

 p.d. and phase p.d., 35; line p.d. and 

 line current, 53 



Lister, eddy-current brake, 207 



Ixd characteristic, of alternator, 159 



Load component of current, 16 



Losses in alternator, 173 ; in induction 

 motor, 125, 198, 211; in transformer, 

 lor,, n ;?, 109 



M 



Magnetic ageing, 171; magnetic flux 



waves, 30 

 Marcliant, use of condensers in connection 



with voltmeters, 67 

 Mather, electrostatic voltmeter, ii'> 

 Measuring instruments, 60 

 Mesh connection of transformers, 111 ; of 



three-phase circuits, :;."> 

 Meunier, efficiency test of induction motor. 



212 

 Meyer, starting resistances for induction 



motors, 218 



Mixed-action commutator motors, 284 

 Mordey, alternator tcst8, 175; V-curves of 



synchronous motor, 133 

 Morris, eddy-current brake, 207 

 Motors, ec mini n tutor, 271 ; induction, 115 ; 



synchronous, I'll 



Motor-generators P. converters, 258 

 Multicellulur voltmeter, 63 ; dial pattern 



of, l!5 



.M n Itiple-motor speed control for induction 



motors, 227 

 Mutual inductance, 24. 43 ; effect of, on 



wattmeter rending, 49 



N 



Neutral point, 34 



Nodes of stationary wave of magnetic 



flux. 39 

 Numerical value of alternating current, _' 



Oerlikon speed control for induction 



motors, 226 



Oil-cooled transformers, lilt 

 Open -circuit test, 152, 172 

 Oscillographs, 73 

 Output of converter, 249 



Parallel arrangement of impedances, 19; 

 paralleling of alternators, 140 ; parallel 

 running, 149 



1 'artridge, ageing of transformer cores, 171 



Period of alternating current, 2 



Peukert, use of condensers in connection 

 with voltmeters, 67 



Phase angle, 18 ; phase current and line 

 current, 34 ; phase difference, 5 ; phase 

 p.d. and line p.d., 35 ; phase-swinging, 

 135, 150; phase transformers, 112 



Polar arc in single-phase alternators, 81 



Polyphase currents, 29, .'>:< ; polyphase 

 systems, comparison of, :><$ 



Potter, regulation of alternators, 162 



Power, 15, 44 ; power component of cur- 

 rent, 16 ; power factor, 16, 54, 55, 

 125; power-factor indicator, 72 ; power 

 measurement iu three-phase circuits, 

 51, 57 



Punga, heating test of alternator, 177 



Quadrature, 10 



K 



Racing of inverted rotaries. 257 



Kaii. i of transformation, 101 ; ratio of 



voltages in converter, 287 ; ratio of 



currents in converter, 240 

 Reactance, 11 ; reactance coils, 114 



U 



