separately-excited d.c. motor is supplied via a half-control full-wave single-phase rectifier bridge. The supply voltage is 240 V (rms), the thyristors are fired at angle of 110 ° and the armature current continues for 50 ° beyond the voltage zero. Determined the motor speed for a torque of 1.8 Nm, given the motor torque characteristics is 1.0 Nm /A and its armature resistance is 6 Ω. Neglect all rectifier losses

separately-excited d.c. motor is supplied via a half-control full-wave single-phase rectifier bridge. The supply voltage is 240 V (rms), the thyristors are fired at angle of 110 ° and the armature current continues for 50 ° beyond the voltage zero. Determined the motor speed for a torque of 1.8 Nm, given the motor torque characteristics is 1.0 Nm /A and its armature resistance is 6 Ω. Neglect all rectifier losses

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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