A 400 V, 3-phase alternator is subjected to an unsymmetrical fault. The
A 400 V, 3-phase alternator is subjected to an unsymmetrical fault. The
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter7: Alternating Current, Power Distribution, And Voltage Systems
Section: Chapter Questions
Problem 7RQ
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![A 400 V, 3-phase alternator is subjected to an unsymmetrical fault. The
sequence currents are Ia1= -j10 A, Ia2 = j6 A and Iao = j4 A. The sequence
impedances are Z1 = j10 ohm, Z2 = j5 ohm and z0 = j7.5 ohm. Find the
fault current and the type of fault. Also find the terminal voltages (phase and
line) of the generator.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F047f5317-6021-4213-bc8a-25f2b43ec6f3%2F4c0dbf0f-6178-4307-9224-181adda3fb2b%2F1xt4voc_processed.png&w=3840&q=75)
Transcribed Image Text:A 400 V, 3-phase alternator is subjected to an unsymmetrical fault. The
sequence currents are Ia1= -j10 A, Ia2 = j6 A and Iao = j4 A. The sequence
impedances are Z1 = j10 ohm, Z2 = j5 ohm and z0 = j7.5 ohm. Find the
fault current and the type of fault. Also find the terminal voltages (phase and
line) of the generator.
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