ALTERNATE CURRENT DYNAMO-ELECTRIC MACHINES. 
243 
E.M.F (e) of the combination when loaded, the connecting leads being non-inductive. 
This electromotive force is the difference of the curves e G , e n . 
2. In fig. 15 # the frequency is 71, the motor is excited with 18-6 amperes and the 
Fig. 15. 
* Vide Hopkinson, Institute of Civil Engineers Lecture delivered 1883 ; Institute of Civil Engineers, 
November, 1884 ; or “ Original Papers on Dynamo Machinery,” pp. 58 and 148. 
2 I 2 
