Vbase_zone1 = 22 kV Sbase_zonel . Generator: . = 100 MVA ● Zone 1 1 100 MVA 22 kV (0.1+ j0.5) pu 1 YO Y Y T₁ Transformer 1: 100 MVA 25/130 kV (0.1 + j0.5) pu Zone 2 L,= (10+j100) S2 Figure Q1b. YA Transformer 2: 50 MVA · 110/33 kV . Zone 3 (0.1+j0.5) pu M₂Y Load (motor): 50 MVA 33 kV (1 + j0.5) pu • • ♦

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Vbase_zonel
Sbase_zonel
.
*
For the power system shown in Figure Q1b, calculate the per unit impedances
of all components with given zone 1 voltage base 22kV and power base 100
MVA (for the system).
= 22 kV
= 100 MVA
Generator:
.
YG₁
Zone 1
100 MVA
22 kV
(0.1+ j0.5) pu
1
.
E
1
T₁
YY
Transformer 1:
100 MVA
25/130 kV
(0.1+j0.5) pu
Zone 2
L = (10+j100) S2
Figure Q1b.
T₂
Zone 3
YA
Transformer 2:
50 MVA
110/33 kV
(0.1+j0.5) pu
M₂Y
Load (motor):
● 50 MVA
.
33 kV
(1+j0.5) pu
Transcribed Image Text:Vbase_zonel Sbase_zonel . * For the power system shown in Figure Q1b, calculate the per unit impedances of all components with given zone 1 voltage base 22kV and power base 100 MVA (for the system). = 22 kV = 100 MVA Generator: . YG₁ Zone 1 100 MVA 22 kV (0.1+ j0.5) pu 1 . E 1 T₁ YY Transformer 1: 100 MVA 25/130 kV (0.1+j0.5) pu Zone 2 L = (10+j100) S2 Figure Q1b. T₂ Zone 3 YA Transformer 2: 50 MVA 110/33 kV (0.1+j0.5) pu M₂Y Load (motor): ● 50 MVA . 33 kV (1+j0.5) pu
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