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 is the last two digits (from right) of your registration number. 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 at0.80 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 TL2 TL4 Bus A 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 is the last two digits (from right) of your registration number. 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 at0.80 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 TL2 TL4 Bus A Load 3

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.49P: Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings...

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