INDEX 



519 



Magnetomotive force method of 

 determining alternator 

 regulation. 155 

 effect of saturation on, 158 

 measurements required for, 155 

 vector diagram of, 155, 157 

 Mazda lamps, 421 



Type A, Type B, 422 

 Tvpe C. 



spherical candlepower, 415 

 Measurements, 51 



cum ">, 63 



energy, 63 

 frequency, &8 

 high voltages, 220 

 power, 55 

 power-factor, 69 

 slip, 273, 275 

 synchronism, 71, 169 

 voltage, 52, 53, 54, 61, 220 

 wave shape, 72 

 Mechanical rectifiers, 334 



;ry-arc, lamp, 433 

 rectifier, 336 



used with constant-current 



tran>f<>rmer, 219 

 Metallic --elect rode arc lamp, 431 

 Moore tul>< 

 Motor, induction (see Induction 



motors), 225 

 single-phase (see Sii ule-phase 



motors . 

 synchronous (see Synchronous 



motors), 305 



-generator suit-stations, 407 

 Multigap lightning arrester, 395 



N 



il frequency <>t" alti-niat ing- 



current circui 

 ^ lamp. ' 



idescrnt lampH, 



k & Western Railway phase 

 Notation, syml>>li< 



O 



Ohm, definition of. 14 



oil. -cooled transformers, 199, 202 

 switches, 408 



Open-circuit test, of alternator, 151 

 of transformer, 189 



Open-delta connection of trans- 

 formers, 



"Optimistic" method of determining 

 alternator regulation, 158 



Ornamental poles, ' 



Oscillograp! 



"Overshooting" of tungsten lamps, 

 422 



Parallel, circuits (see Alternating- 

 current circuits), 40 

 operation ol >rs, 163 



effect of field n on, 



if.: 



speed-load cha; 



s of prime movers, 

 165 



'hod of shifting load, 164 

 Bynchnini/ing, 168 

 synchroni/n b, 166 



operation of synchronous 



icrs, 373 

 resonam 



"PeSSi runn- 



ing alternator regulation. 



1IJ 



Phase n motor as, 



i i 

 dili' . 15 



Phasing, windings of alternator, 125 



hut 



Lumin. i Brodhun, 437 



