144 



ARMATURE CONSTRUCTION 



each conductor of the multiple-circuit winding will only have to 

 carry one-fourth of the total current. 



If the comparison is for a 6-pole armature, the two-circuit 

 winding will have hut one-third as many conductors, and each 

 conductor will have three times the section It is thought that 

 these brief statements may be useful as illustrating the general 



FIG. 170. Developed Winding Diagram for 2-circuit 6-pole Armature, 

 62 Conductors. yf= 9 ; yb - 1 1 . 



fact that two-circuit windings tend toward requiring fewer and 

 larger conductors as compared with multiple-circuit windings. 

 This is often an attractive property from the point of view of 

 the mechanical construction, and advantage may well be taken of 

 it in small and moderate sized 'designs; but in large, multipolar 

 generators, the best results will generally be obtained by means 

 of multiple-circuit windings. 



In selecting the precise number of conductors for two-circuit 



