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For the power system its one line diagram is shown below: 1-Draw the reactance diagram for power system. Markallreactances in per unit using a base of 200 MVA, 400 kV in the transmission line (TL1). The ratings of the generators, motors, transformers are: Three Phase Y-YTransformers: 200 MVA, 400Y/18Y kV, X=j0.0X pu where X- Three Phase Y-A Transformers: 400 MVA, 400A /16Y kV, X=10%. Generator 1,2 : 200 MVA, 18 kV, X" =20% Synch. Motor : 80 MVA, 13.4kV, X" =20% : 60MW, 0.80 Lag. P.f. Load 3 The inductive reactance of the transmission lines are as follows: TL1, TL2 = j40 Q TL3 = j30 Q TL4 = j30 Q. 2-If the voltage ofbus 3 is 13.4 kV when the motor draws 60 MW at 0.80 leading P.f., Calculate the voltages at the points A, B assuming that the two generators divide the load equally. Bus 1 Bus 2 A B -TL1 TL2 TL4 Bus 3 Load 3

For the power system its one line diagram is shown below: 1-Draw the reactance diagram for power system. Markallreactances in per unit using a base of 200 MVA, 400 kV in the transmission line (TL1). The ratings of the generators, motors, transformers are: Three Phase Y-YTransformers: 200 MVA, 400Y/18Y kV, X=j0.0X pu where X- Three Phase Y-A Transformers: 400 MVA, 400A /16Y kV, X=10%. Generator 1,2 : 200 MVA, 18 kV, X" =20% Synch. Motor : 80 MVA, 13.4kV, X" =20% : 60MW, 0.80 Lag. P.f. Load 3 The inductive reactance of the transmission lines are as follows: TL1, TL2 = j40 Q TL3 = j30 Q TL4 = j30 Q. 2-If the voltage ofbus 3 is 13.4 kV when the motor draws 60 MW at 0.80 leading P.f., Calculate the voltages at the points A, B assuming that the two generators divide the load equally. Bus 1 Bus 2 A B -TL1 TL2 TL4 Bus 3 Load 3

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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For the power system its one line diagram is shown below: 1-Draw the reactance diagram for power system. Markallreactances in per unit using a base of 200 MVA, 400 kV in the transmission line (TL1). The ratings of the generators, motors, transformers are: Three Phase Y-YTransformers: 200 MVA, 400Y/18Y kV, X=j0.0X pu where X- Three Phase Y-A Transformers: 400 MVA, 400A / 16Y kV, X=10%. :200 MVA, 18 kV, X" = 20% : 80 MVA, 13.4kV, X" = 20% : 60MW, 0.80 Lag. P.f. Generator 1, 2 Synch. Motor Load 3 The inductive reactance of the transmission lines are as follows: TL1, TL2 = j40 Q TL3 = j30 Q TL4 = j30 Q. 2-If the voltage ofbus 3 is 13.4 kV when the motor draws 60 MW at 0.80 leading P.f., Calculate the voltages at the points A, B assuming that the two generators divide the load equally. Bus 1 Bus 2 A T2 -TL1. B TL2 TL3 TL4 Bus 3 Load 3
Transcribed Image Text:For the power system its one line diagram is shown below: 1-Draw the reactance diagram for power system. Markallreactances in per unit using a base of 200 MVA, 400 kV in the transmission line (TL1). The ratings of the generators, motors, transformers are: Three Phase Y-YTransformers: 200 MVA, 400Y/18Y kV, X=j0.0X pu where X- Three Phase Y-A Transformers: 400 MVA, 400A / 16Y kV, X=10%. :200 MVA, 18 kV, X" = 20% : 80 MVA, 13.4kV, X" = 20% : 60MW, 0.80 Lag. P.f. Generator 1, 2 Synch. Motor Load 3 The inductive reactance of the transmission lines are as follows: TL1, TL2 = j40 Q TL3 = j30 Q TL4 = j30 Q. 2-If the voltage ofbus 3 is 13.4 kV when the motor draws 60 MW at 0.80 leading P.f., Calculate the voltages at the points A, B assuming that the two generators divide the load equally. Bus 1 Bus 2 A T2 -TL1. B TL2 TL3 TL4 Bus 3 Load 3
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