A separately, excited Dc motor fed from 3-phase semi-controlled rectifier develops a full load torque at 1500 rpm. When firing angle Zero the armature taking 50A and having having an armature resistance of 0.5ohm. when the motor back emf Constant is 0.25 V/rpm. Calculate the supply Voltage per phase, find also the range of angle required to give speed between 1500rpm and 750 rpm at full load torque.

A separately, excited Dc motor fed from 3-phase semi-controlled rectifier develops a full load torque at 1500 rpm. When firing angle Zero the armature taking 50A and having having an armature resistance of 0.5ohm. when the motor back emf Constant is 0.25 V/rpm. Calculate the supply Voltage per phase, find also the range of angle required to give speed between 1500rpm and 750 rpm at full load 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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