INDEX 455 



Capacity of a dynamo electric machine, limited by temperature rise. 48 



effect of ventilation upon. 49,138 



Cascade connection of induction motors 346 



Case, corrugated for self-cooling transformers 291 



Cell, primary 2 



Characteristic curves, for c-c. generators 126 



for c-c. motors 157-162 



for induction motor 343 



for a-c. generator 252 



for series a-c. motor 360 



Chemical effect of an electric current 



Circular mil 



Circuit breaker 412 



Circulating current with alternators in parallel operation 267 



Coefficient, leakage 66 



of self induction 213 



Coils, formed, for use in armature winding 86-238 



construction of, as used in transformer . 281-284 



semi-formed, use of, with semi-closed slots 47 



Commutating poles, use of 36-167 



Commutation, condition for sparkless 116 



current in short circuited coil during 114 



difficulty of, in series a-c. motor 358 



effect of, on wave shape of elementary generator . . 95 



e.m.f . and resistance Ill 



use of commutating poles to facilitate 118 



Commutator, construction of 52 



function of 51 



heating of 442 



roughened, effect of 436 



Commutator motors for alternating current supply 352 



Comparison of capacities of synchronous converter and c-c. 



generator 378 



single and polyphase systems and machinery 400 



Compensated repulsion motor 366 



Compensating winding to neutralize armature reaction . . 125 



for single phase series motors 356 



Compound winding of field coils 105 



Compound wound generator, commercial use of 134 



motor, use of fly wheel with 183 



Concantenation control of induction motors 346 



Condenser, charge and discharge curves for 218 



