A separately excited DC motor with supply voltage of 420 V, armature resistance of 0.5 N and K_ =1.8 V-s/rad is controlled by regenerative braking using a DC chopper. Assuming constant average armature current of 320 A during regenerative braking, determine the speed of motor for a duty cycle of 0.65. m 1225 гpm 1629 гpm 1463 гpm 69 гpm

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A separately excited DC motor with supply voltage of 420 V, armature resistance of 0.5 N and
K =1.8 V-s/rad is controlled by regenerative braking using a DC chopper. Assuming constant
average armature current of 320 A during regenerative braking, determine the speed of motor for a
duty cycle of 0.65.
m
1225 гpm
1629 гpm
1463 гpm
69 rpm
Transcribed Image Text:A separately excited DC motor with supply voltage of 420 V, armature resistance of 0.5 N and K =1.8 V-s/rad is controlled by regenerative braking using a DC chopper. Assuming constant average armature current of 320 A during regenerative braking, determine the speed of motor for a duty cycle of 0.65. m 1225 гpm 1629 гpm 1463 гpm 69 rpm
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