Q2: A 600 V, 50 A d.c. separately-excited motor is fed form a three-phase half-controlled rectifier. The armature resistance of the motor is0.1 Q, the armature inductance is 40 mH and the machine constant Keþ is 0.3 V/rpm. The rectifier is fed form 400 V, 50 Hz three-phasesupply. It is required to calculate:(a) The no-load speed when the firing angle is 30° and the no-loadcurrent is 5 A.(b) The firing angle to obtain a speed of 1600 rpm.

Rated Vo=600VRated Io=50 AGiven, ra=0.1ΩLa=40 mHkeϕ=0.3V/rpmSupply voltage for…

Q2: A 600 V, 50 A d.c. separately-excited motor is fed form a three- phase half-controlled rectifier. The armature resistance of the motor is 0.10, the armature inductance is 40 mH and the machine constant Ke o is 0.3 V/rpm. The rectifier is fed form 400 V, 50 Hz three-phase supply. It is required to calculate: (a) The no-load speed when the firing angle is 30° and the no-load current is 5 A. (b) The firing angle to obtain a speed of 1600 rpm.

Q2: A 600 V, 50 A d.c. separately-excited motor is fed form a three- phase half-controlled rectifier. The armature resistance of the motor is 0.10, the armature inductance is 40 mH and the machine constant Ke o is 0.3 V/rpm. The rectifier is fed form 400 V, 50 Hz three-phase supply. It is required to calculate: (a) The no-load speed when the firing angle is 30° and the no-load current is 5 A. (b) The firing angle to obtain a speed of 1600 rpm.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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