A 220V, 900rpm, 120A separately excited dc motor has an armature resistance of 0.05 Q. It is fed from a single phase fully -controlled converter with an a.c source voltage of 240 V , 50 Hz, Assuming continuous conduction mode of operation, Calculate (i) Find the speed of the motor when firing angle of the converter is 45 degree and motor is operating at rated torque (ii) Find the speed of the motor firing angle of the converter is 140 degree andand motor is operating at rated torque

A 220V, 900rpm, 120A separately excited dc motor has an armature resistance of 0.05 Q. It is fed from a single phase fully -controlled converter with an a.c source voltage of 240 V , 50 Hz, Assuming continuous conduction mode of operation, Calculate (i) Find the speed of the motor when firing angle of the converter is 45 degree and motor is operating at rated torque (ii) Find the speed of the motor firing angle of the converter is 140 degree andand motor is operating at rated torque

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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