Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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One-line diagram of a power system is shown below. Relevant details are
mentioned below. Generator: 100 MVA, 11 kV, 3-phase, reactance 20%;
Transformer T1: 100 MVA, 10/132 kV, reactance 6%; Transformer T2: 80 MVA,
132/10 kV, reactance 5%; Line reactance is 100 Q. Motors M1 and M2 are rated at
50 MVA and 40 MVA respectively both at 10 kV and 20% reactance. In the above,
reactances are per-phase values. Taking generator rating as base, draw the per-
phase impedance diagram in which the elements need to be expressed in per
unit. *
T1
M,
Transmission Line
G
M2) A
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Transcribed Image Text:One-line diagram of a power system is shown below. Relevant details are mentioned below. Generator: 100 MVA, 11 kV, 3-phase, reactance 20%; Transformer T1: 100 MVA, 10/132 kV, reactance 6%; Transformer T2: 80 MVA, 132/10 kV, reactance 5%; Line reactance is 100 Q. Motors M1 and M2 are rated at 50 MVA and 40 MVA respectively both at 10 kV and 20% reactance. In the above, reactances are per-phase values. Taking generator rating as base, draw the per- phase impedance diagram in which the elements need to be expressed in per unit. * T1 M, Transmission Line G M2) A
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