ALTERNATING GENERATORS AND SYNCHRONOUS MOTORS. 89° 
151. Directions of Lines of Armature Leakage Path. 
—Figs. 44 and 45 indicate the principal directions of the 
leakage lines. The number of lines lost in the paths 7 and 
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/ 
aft Ps : 
/ / . 
L eu? 
yay tai ee 
, j / 
LiZ AJ fy 
4 
“ y ha “Y 
VE: ‘\z fa Si: Lr - 
A Una 
é q Po ‘ X 
ZS * Losadh 
Fig. 44.—LEAKAGE PATHS OF THE ARMATURE SYSTEM OF A 
GENERATOR, . 
4 are generally negligible and only the leakage inside the 
slots, direction 2, and that around the teeth faces, direction 
3, will be considered. 
An additional loss of magnetic lines will be found around 
the inactive wires of the armature winding which projeet 
Fie. 45.—LEAKAGE PATHS AROUND THE INACTIVE ARMATURE 
WINDING, 
out of the iron core. Such leakage is considerable in a 
generator with a large number of poles, such as a machine 
of large diameter with a short armature. This. item. will 
