456 INDEX 



PAGE 



Condenser, construction of 218 



Condenser action of an over-excited synchronous motor 323 



Conductors 4 



Constant current transformer 301 



Continuous current, definition of 27 



Control of motor speed 176 



Controller for railway motors 183 



Converter (see synchronous converter). 



Copper loss in a transformer 294 



Core, armature, construction of 37 



laminating the, reasons for 38 



losses in 39 



transformer, construction of 282 



Coulomb, unit of quantity, definition of 10 



Counter-electromotive force, effect of, on motor speed 163 



inclining of 151 



Cross magnetizing effect of armature reaction 123 



Cumulative compound motor 151 



Current density in armature coils 100 



in field coils 69 



Current transformer 305 



Curves, characteristic (see characteristic curves). 



Damping grids 312 



Decay of current in condenser discharge 218 



Delta connection of three phase alternator 237 



Demagnetizing effect of armature reaction 123 



Difference of potential 14 



Direct current 27 



Distribution, three phase 401 



three wire 136 



Division of load, between a-c. machines in parallel 270 



between c-c. machines in parallel 4-146 



Ducts, ventilating 50 



Dynamo electric machine, definition of 27 



general construction of 27 



Eddy currents, in armature core 40 



in transformer core 293 



current loss in a dynamo electric machine 190 



Edgewise wound field coils 73 



Effective value of a sine wave ... 199 



