A 200 V, 10 A, 1000 rpm, separately excited d.c. motor has an armature resistance of 3 Q. The motor is controlled by a stepdown chopper with a frequency of 1 kHz. The input d.c. voltage to the chopper is 230 V. The duty cycle of the chopper for the motor to operate at a speed of 500 rpm delivering the rated torque will be

A 200 V, 10 A, 1000 rpm, separately excited d.c. motor has an armature resistance of 3 Q. The motor is controlled by a stepdown chopper with a frequency of 1 kHz. The input d.c. voltage to the chopper is 230 V. The duty cycle of the chopper for the motor to operate at a speed of 500 rpm delivering the rated torque will be

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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