Page 268 - Solutions Manual to accompany Electric Machinery Fundamentals
P. 268
If R decreases to 5 , the total field resistance becomes 29 , and the terminal voltage line gets
adj
shallower. The new point where the distance between the E A and V T curves is exactly 4.5 V
corresponds to a terminal voltage of 125 V, as shown below.
Note that decreasing the field resistance of the shunt generator increases the terminal voltage.
8-27. A 120-V 50-A cumulatively compounded dc generator has the following characteristics:
R A R S 021. N 1000 turns
F
262