150 



ELECTRICAL ENGINEERING 



When the coil pitch is less by one or more teeth than the pole pitch 

 the winding is called a fractional pitch or short-chord winding. 



Generator 



l I LJ 



FIG. 115. Six-pole multiple-drum winding. Fractional pitch. 



Fig. 115 shows a fractional pitch, multiple-drum winding. Frac- 

 tional-pitch windings have shorter end connections than full-pitch 

 windings and have a smaller inductive e.m.f. generated during 



