THE INDUCTION MOTOR. 



88. In the calculation of the efficiency the load losses have not been 

 taken into account. As I have said before, they greatly influence the 

 efficiency, but it is extremely difficult to predetermine them for va- 



Data of 200 h. p. Polyphase Motor for 2000 Volts, 60 Periods, 440 R. P. M. 



Data of 200 h. p. Polyphase Motor for 2000 Volts, 60 Periods, 440 .R. P. M. 



rious loads. Here is a field full of practical and theoretical interest 

 which has been sadly neglected by investigators, but promises a rich 

 harvest 



