ALTERNA TING-CURRENT WINDING 



165 



winding we must 

 connect one con- 

 ductor or group of 

 conductors to a 

 similarly situated 

 conductor or group 

 of conductors under 

 the next adjacent 

 pole of opposite 

 polarity. 



Let us consider 

 the case of a 6 -pole 

 alternator, the poles 

 of which are dia- 

 grammatically re- 

 presented in Fig. 

 196. For primary 

 consideration let us 

 take one conductor 

 situated under each 

 pole, represented by 

 the thick radial lines 

 numbered 1 to 6. 

 Now,if the armature 

 revolves in the direc- 

 tion indicated by the 

 circular arrow at the 

 centre of the dia- 

 gram, then the in- 

 duced electromotive 

 forces will be in the 

 direction indicated 

 by the arrow-heads 

 on the thick lines 

 representing the 

 conductors. Now, 

 we have to connect 

 these conductors up 

 in such a way that 

 the electromotive 

 forces in all the con- 

 ductors act in the 



