ALTERNATE CURRENT DYNAMO-ELECTRIC MACHINES. 
251 
Table IV. 
No. 
Description of Magnitude. 
Half load. 
Full load. 
Frequency in complete periods per second. 
70-3 
69-2 
Phase difference between armatures in fractions of a complete 
period. 
1 
2 O 
1 
1 O 
1 
Watts given out by generator (see Tables II. and III.) . 
3493 
6400 
2 
Watts given to motor (see Tables II. and III.). 
3448 
6196 
3 
Watts dissipated in generator armature = (vmean 2 C.) 2 
’275 ohm. 
128-5 
481-2 
4 
Watts dissipated in motor armature = ( v mean 2 C.) 2 ‘275 ohm 
128-5 
481-2 
5 
Watts dissipated in generator magnet winding . . , . . 
537 
537 
6 
Watts dissipated in motor magnet winding. 
537 
537 
7 
Watts dissipated in connections between machines .... 
45 
204 
8 
Watts absorbed by combination through belt. 
1848 
2941 
9 
Total electrical power developed in generator = No. 1 + No. 3 
3621 
6881 
10 
Half Watts absorbed by system minus half known Watts 
- \ {No. 8 -(No. 3 + No. 4 + No. 7)}. 
746 
889 
11 
Total power given to generator = No. 5 + No. 9 + No. 10 . 
4904 
8307 
12 
Percentage efficiency of generator = ^°' ^ X —^ .... 
71-2 
770 
13 
Percentage loss in generator armature. 
2-61 
5-79 
14 
Percentage loss in generator magnet winding. 
10-9 
6-46 
15 
Percentage sum of all other losses in generator. 
15-29 
9-75 
16 
tj . 0 ; • , /No. 9 + No. 10-No. 8\ 1 
Percentage efficiency of motor = -—-——— - —— 
° J v No. 2 + No. 6 J 100 
63-2 
7i-7 
17 
Percentage loss in motor armature. 
3-22 
7-14 
18 
Percentage loss in motor magnet winding. 
13-5 
7-98 
19 
Percentage sum of all other losses in motor. 
20-1 
1318 
20 
Percentage efficiency of combination = (No. 12 x No. 16) 
450 
55-2 
2 k 2 
