212 



ARMATURE CONSTRUCTION 



have connected up the winding as a three-phase eight-pole winding 

 with terminals S A T A> S B T B , S c T C . The winding is also con- 

 nected up star fashion ; thus T A , T B , T C are connected together 

 (see p. 180), leaving S A , S fi , S c for the line. 



The title for this winding is an eight-pole, three-phase, half- 

 coiled, quintuple coil, five-slot spiral winding in two-ranges and Y 

 connected. 



Before leaving two-range coil windings, reference will now lie 



FIG. 245. Eight-pole, Three-phase, Half-coiled, Quintuple Coil, Five-slot 

 Spiral Winding in two ranges. 



made to another type of diagram which will be introduced in 

 conjunction with the photographs of portions of windings shown 

 in Figs. 248 and 249. 



These windings are precisely similar except for the number of 

 conductors per slot. They are both two-range windings, and in 

 each case the coil covers two slots on one side. 



The title for these windings is a three-phase, half-coiled, double- 

 coil, two-slot spiral winding in two-ranges. The winding diagram 

 is shown in Fig. 250 for three-phase. This diagram differs from 

 all those already given, in several respects. 



