THE INDUCTION MOTOR. 



257 



phase flows in opposite directions in adjacent bands of conductors 

 belonging to that phase. 



Figures 229, 230 and 231 represent an end view of a two- 

 phase induction motor ; the rotor slots and conductors are omitted 

 for the sake of clearness, and the bands of stator conductors are 

 shown slightly separated from each other, so that they may be 

 easily distinguished ; before proceeding to the discussion of the 

 action of the stator windings, however, it is necessary to consider 

 the effect of current in a band of conductors between two masses 



N 



Fig. 229. 



of iron. This effect is shown in Figs. 232 and 233. The small 

 circles represent the sections of the conductors, conductors carry- 

 ing up-flowing currents are marked with dots, and conductors car- 

 rying down-flowing currents are marked with crosses. The action 

 of the currents in these bands is to produce magnetic flux along the 

 dotted lines in the directions indicated by the arrows. 



The lines A' and B r in Figs. 229, 230 and 231 are clock-dia- 

 gram lines imagined to be rotating, and their projections on the 

 fixed line ef represent at each instant the values of the currents 

 which flow in the A bands and B bands of stator conductors 



respectively. 

 18 



