Q-1: A 1200rpm separately excited dc motor drives a rated load torque of 85NM. The field and armature resistances are 200 0 and 0.2 Q respectively. The field circuit is fed through a 1-phase semi-controlled ac-to-dc converter with zero degree firing angle. The armature circuit is fed through 1-phase fully controlled converter. Both converters are connected to 400V source. The motor voltage constant is 0.8 V-sec/A-rad. Determine the firing angle of the armature converter at rated load.
Q-1: A 1200rpm separately excited dc motor drives a rated load torque of 85NM. The field and armature resistances are 200 0 and 0.2 Q respectively. The field circuit is fed through a 1-phase semi-controlled ac-to-dc converter with zero degree firing angle. The armature circuit is fed through 1-phase fully controlled converter. Both converters are connected to 400V source. The motor voltage constant is 0.8 V-sec/A-rad. Determine the firing angle of the armature converter at rated load.
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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![Q-1: A 1200rpm separately excited dc motor drives a rated load torque of 85NM. The field and
armature resistances are 200 0 and 0.2 Q respectively. The field circuit is fed through a 1-phase
semi-controlled ac-to-dc converter with zero degree firing angle. The armature circuit is fed
through 1-phase fully controlled converter. Both converters are connected to 400V source. The
motor voltage constant is 0.8 V-sec/A-rad. Determine the firing angle of the armature converter at
rated load.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe8293381-683c-426b-b4ee-a30b1cf72c4e%2Ff630a4be-19f6-466b-a111-3c0fefac4df8%2Fphbybeqq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q-1: A 1200rpm separately excited dc motor drives a rated load torque of 85NM. The field and
armature resistances are 200 0 and 0.2 Q respectively. The field circuit is fed through a 1-phase
semi-controlled ac-to-dc converter with zero degree firing angle. The armature circuit is fed
through 1-phase fully controlled converter. Both converters are connected to 400V source. The
motor voltage constant is 0.8 V-sec/A-rad. Determine the firing angle of the armature converter at
rated load.
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