A three-phase 3300V. 50 Hz star-connected alternator has an effective resistance of 0.5 ohm/phase. A field current to of 30A produces full-load current of 180A on short- circit and a line to line emf of 1000V on open circit Determine(i) the power angle of the alternator when it delivers full-load at 0.8p.f(lag) (ii)the SCR of the alternator
A three-phase 3300V. 50 Hz star-connected alternator has an effective resistance of 0.5 ohm/phase. A field current to of 30A produces full-load current of 180A on short- circit and a line to line emf of 1000V on open circit Determine(i) the power angle of the alternator when it delivers full-load at 0.8p.f(lag) (ii)the SCR of the alternator
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
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.13MCQ
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Question
![A three-phase 3300V. 50 Hz
star-connected alternator has
an effective resistance of 0.5
ohm/phase. A field current to
of 30A produces full-load
current of 180A on short-
circit and a line to line emf of
1000V on open circit
Determine(i) the power angle
of the alternator when it
delivers full-load at 0.8p.f(lag)
(ii)the SCR of the alternator
D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1759d8e7-c993-49a0-8ea0-72100c0ff9f1%2Fef81fc00-e733-4a11-af80-de2e3b4316e5%2F8pmjt49_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A three-phase 3300V. 50 Hz
star-connected alternator has
an effective resistance of 0.5
ohm/phase. A field current to
of 30A produces full-load
current of 180A on short-
circit and a line to line emf of
1000V on open circit
Determine(i) the power angle
of the alternator when it
delivers full-load at 0.8p.f(lag)
(ii)the SCR of the alternator
D
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