A single-phase semiconverter controls a DC motor. The ac supply voltage to the armatureand field converter is 208V, 60 Hz. The field current is set to the maximum possible value.The armature resistance is Ra = 0.25 N, the field resistance is Rf = 147 Q, and the motorvoltage constant is Ky = 0.7032 V/A rad/s. The load torque = 45 Nm at 1000 rpm. Assumingcontinuous current determine (a) the field current If (b) the delay angle of the converter inthe armature a,, and (c) the input power factor of the armature circuit converter.Q7.

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A single-phase semiconverter controls a DC motor. The ac supply voltage to the armature and field converter is 208V, 60 Hz. The field current is set to the maximum possible value. The armature resistance is R, = 0.25 N, the field resistance is Rf = 147 N, and the motor voltage constant is Kv = 0.7032 V/A rad/s. The load torque = 45 Nm at 1000 rpm. Assuming continuous current determine (a) the field current If (b) the delay angle of the converter in the armature a,, and (c) the input power factor of the armature circuit converter.

A single-phase semiconverter controls a DC motor. The ac supply voltage to the armature and field converter is 208V, 60 Hz. The field current is set to the maximum possible value. The armature resistance is R, = 0.25 N, the field resistance is Rf = 147 N, and the motor voltage constant is Kv = 0.7032 V/A rad/s. The load torque = 45 Nm at 1000 rpm. Assuming continuous current determine (a) the field current If (b) the delay angle of the converter in the armature a,, and (c) the input power factor of the armature circuit converter.

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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