326 



ELECTRICAL ENGINEERING 



Phaee 1, Z,=Io Cog 



3, 23=10 Coa (6 -240) 



(1) 



FIG. 309. Revolving m.rn.f. and flux in a two-pole, three- 

 phase induction motor. 



FIG. 310. Revolving m.m.f. and flux in a four-pole, two- 

 phase induction motor. 



