GENERAL THEORY OF THE INDUCTION MOTOR. 281 



Example. The curves in Fig. 243 represent the results of the 

 above calculations on a 5 -horse-power two-phase induction motor, 

 the abscissas represent power output in watts, and the ordinates 

 of the various curves represent the corresponding values of speed, 





HO ! 



IPO" 



90 

 80 I 



70 * 



b 



power output in kilowatts 



Torque T, stator current per phase /, rotor speed n' , power factor^, and efficiency TJ. 



Fig. 243. 



torque, power factor, efficiency, and stator current in each phase 

 of the stator winding. The speed of the motor is expressed in 

 terms of synchronous speed taken as 100. 



The results of the above calculations for speed, torque and 

 power output are also shown in Fig. 244, in which the abscissas 



