A 100 MVA, 33 kV, three phase generator has a reactance of 15%. The generator is connected to the motors through a transmission line and transformers as shown in Fig. 5.14. Motors have rated inputs of 40 MVA, 30 MVA and 20 MVA at 30 kV with 20% reactance-each. Draw the per-unit circuit diagram. (м) 40 MVA, X1 %3D0.20 рu T, T, 38 60 Ω (M2) 30 MVA, xm2 = 0.20 pu 100 MVA, 33 kV Y A 110 MVA 110/32 kV 110MVA A-Y (M) 20 MVA, xm3 = 0.20 pu x, = 0.15 pu 32/110 kV X1, = 0.08 pu X7, = 0.08 pu Fig. 5.14: Single-line diagram.
A 100 MVA, 33 kV, three phase generator has a reactance of 15%. The generator is connected to the motors through a transmission line and transformers as shown in Fig. 5.14. Motors have rated inputs of 40 MVA, 30 MVA and 20 MVA at 30 kV with 20% reactance-each. Draw the per-unit circuit diagram. (м) 40 MVA, X1 %3D0.20 рu T, T, 38 60 Ω (M2) 30 MVA, xm2 = 0.20 pu 100 MVA, 33 kV Y A 110 MVA 110/32 kV 110MVA A-Y (M) 20 MVA, xm3 = 0.20 pu x, = 0.15 pu 32/110 kV X1, = 0.08 pu X7, = 0.08 pu Fig. 5.14: Single-line diagram.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:A 100 MVA, 33 kV, three phase generator has a reactance of 15%. The
generator is connected to the motors through a transmission line and
transformers as shown in Fig. 5.14. Motors have rated inputs of 40
MVA, 30 MVA and 20 MVA at 30 kV with 20% reactance-each. Draw the
per-unit circuit diagram.
(м) 40 MVA, X1 %3D 0.20 рu
T,
T,
60 Ω
(M2) 30 MVA, x,m2 = 0.20 pu
100 MVA,
33 kV
Y A
110 MVA
110/32 kV
110MVA
A-Y
(M.) 20 MVA, xmg = 0.20 pu
x, = 0.15 pu 32/110 kV
X1, = 0.08 pu
X7, = 0.08 pu
Fig. 5.14: Single-line diagram.
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