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Q4- A phase-controlled six-pulse rectifier, fed from a 460-V, 60-Hz line, supplies a dc motor, whose armature resistance and inductance are 30 and 17 mH, respectively. The voltage induced in the armature is 480 V. Determine the conduction mode of the rectifier and calculate the dc armature voltage and current if the rectifier operates with the firing angle of (i) 30°, (ii) 60° and (iii) 75° For each case determine the average, RMS and peak thyristor current.

Q4- A phase-controlled six-pulse rectifier, fed from a 460-V, 60-Hz line, supplies a dc motor, whose armature resistance and inductance are 30 and 17 mH, respectively. The voltage induced in the armature is 480 V. Determine the conduction mode of the rectifier and calculate the dc armature voltage and current if the rectifier operates with the firing angle of (i) 30°, (ii) 60° and (iii) 75° For each case determine the average, RMS and peak thyristor current.

Introductory Circuit Analysis (13th Edition)
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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Q4- A phase-controlled six-pulse rectifier, fed from a 460-V, 60-Hz line, supplies a dc motor, whose armature resistance and inductance are 30 and 17 mH, respectively. The voltage induced in the armature is 480 V. Determine the conduction mode of the rectifier and calculate the dc armature voltage and current if the rectifier operates with the firing angle of (i) 30º, (ii) 60° and (iii) 75° For each case determine the average, RMS and peak thyristor current.
Transcribed Image Text:Q4- A phase-controlled six-pulse rectifier, fed from a 460-V, 60-Hz line, supplies a dc motor, whose armature resistance and inductance are 30 and 17 mH, respectively. The voltage induced in the armature is 480 V. Determine the conduction mode of the rectifier and calculate the dc armature voltage and current if the rectifier operates with the firing angle of (i) 30º, (ii) 60° and (iii) 75° For each case determine the average, RMS and peak thyristor current.
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