A 220 volt dc shunt motor runs at 700 rpm with full field. The armature resistance is 0.5 ohms. The armature current required to give rated torque is 20
a. The speed of the motor is controlled by resistances connected in series and parallel with the armature, equal to 6 ohm and 5 ohms respectively. Determine the speed torque characteristics. What current would the motor draw to develop rated torque
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Answer:
Explanation:
N
=
( )
.r.p.s.
−−=ΦΦ
aaaa
VIRVIR AK ZP
where
R
a
=armature circuit resistance...
use this formula to answer...
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