INDEX 809 



PAGE 



Generators, synchronous, parallel operation 318 



permissible temperatures 309 



rating 307 



reactance 469 



regulation, voltage 291 



repair ;. . 172 



saturation curves 289 



short-circuit current 292 



speed 315 



synchronous impedance 292 



synchronous reactance 294 



temperature measurements 310 



ventilation 173, 345 



voltage 270, 316 



voltage regulation 291 



wave form 282, 301 



windings 325, 330 



Governors 246 



action ' 249 



arrangement in power-house 176 



arrangement and operation 251 



energy output 251 



methods of control 254 



power cylinders 253 



pumping outfit 252 



pressure supply 252 



speed regulation 220, 246 



Grade, hydraulic 106, 117, 119 



Grounding, generator neutral 304 



lightning arresters 612 



transformer neutrals 392, 393, 396, 398, 399, 401, 404, 408, 



413, 420 



transformer secondaries 393, 550, 638 



Ground detector, electrostatic 545 



Guide vanes 220, 236 



H 



Head 67, 114, 210 



effective or net 114, 789, 794 



elevation 114 



gross 67, 114, 788 



limitations 675 



loss 116 



measurement 792 



pressure 114 



variation 214 



Head works 74 



