Q6/ When a 50-k VA, 3-phase, 440-V, 60-Hz synchronous generator is driven at its rated speed, it is found that the open - circuit terminal potential difference is 440 V line-to-line with a field current of 7 A. When stator terminals are short circuited, rated current is produced by a field current of 5.5 A. a- determine the synchronous reactance per phase b- Determine the per-unit synchronous reactance. The machine rating should be employed as a base

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
Chapter11: Transient Stability
Section: Chapter Questions
Problem 11.3P
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Q6/ When a 50-k VA, 3-phase, 440-V, 60-Hz synchronous generator is driven at
its rated speed, it is found that the open - circuit terminal potential difference is
440 V line-to-line with a field current of 7 A. When stator terminals are short
circuited, rated current is produced by a field current of 5.5 A.
a- determine the synchronous reactance per phase
b- Determine the per-unit synchronous reactance. The machine rating should
be employed as a base
Transcribed Image Text:Q6/ When a 50-k VA, 3-phase, 440-V, 60-Hz synchronous generator is driven at its rated speed, it is found that the open - circuit terminal potential difference is 440 V line-to-line with a field current of 7 A. When stator terminals are short circuited, rated current is produced by a field current of 5.5 A. a- determine the synchronous reactance per phase b- Determine the per-unit synchronous reactance. The machine rating should be employed as a base
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