Draw a single line per-unit impedance diagram for the system whose single line di Figure 2. The ratings of the components in the power system are given below, Generator (1): 40MVA, 13.8kV, R:3% X=80% Motor (2): 20MVA, 13.8kV, R:3% X=80% Motor (3): 10MVA, 13.2kV; R:3% X-100% Y-A Transformers: 20MVA, 13.8/138kV, R:2% X=10% Line 1: R:10 Q X=j500 Line 2: R:5 Q X=j300 Line 3: R:5 ΩΧ330Ω Select a base of 40MVA and 128kV in the transmission line 1. (25pts.) Region 2 AY YA Region 1 Region 3

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2) Draw a single line per-unit impedance diagram for the system whose single line diagram is shown in|
Figure 2. The ratings of the components in the power system are given below,
Generator (1): 40MVA, 13.8kV, R:3% X=80%
Motor (2): 20MVA, 13.8kV, R:3% X-80%
Motor (3): 10MVA, 13.2kV; R:3% X=100%
Y-A Transformers: 20MVA, 13.8/138kV, R:2% X=10%
Line 1: R:10 Q X=j500
Line 2: R:5 Q X=j300
Line 3: R:5 Q X=j300
Select a base of 40MVA and 128kV in the transmission line 1. (25pts.)
Region 2
AY
YA
YOD
DOX
Region 1
Region 3
* Region 4
AY
Region 5
YA
Bus 1
Bus 2
Bus 3
Region 6
Figure 2
Transcribed Image Text:2) Draw a single line per-unit impedance diagram for the system whose single line diagram is shown in| Figure 2. The ratings of the components in the power system are given below, Generator (1): 40MVA, 13.8kV, R:3% X=80% Motor (2): 20MVA, 13.8kV, R:3% X-80% Motor (3): 10MVA, 13.2kV; R:3% X=100% Y-A Transformers: 20MVA, 13.8/138kV, R:2% X=10% Line 1: R:10 Q X=j500 Line 2: R:5 Q X=j300 Line 3: R:5 Q X=j300 Select a base of 40MVA and 128kV in the transmission line 1. (25pts.) Region 2 AY YA YOD DOX Region 1 Region 3 * Region 4 AY Region 5 YA Bus 1 Bus 2 Bus 3 Region 6 Figure 2
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