Page 654 - Basic Electrical Engineering
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V − E = I (R + R )
a
a
se
or, E = V − I (R + R )
a
a
se
= 220 − 80 (0.1 + 0.05)
= 208 V
Again,
substituting values
or,
Figure 7.31
Power developed by the armature = E × I a
Power output = Power developed – Iron and Frictional losses
= 19.84 − 0.44
= 19.4 kW
If we want to convert in horse power, we use the relation 1 kW = 0.735 hp.
