The 3-phase power and line-to-line voltage ratings of the electric power system shown in the following figure are as follows: Generator G 160 kVA 22 кV X-9% Z= 2 + j5 2 Line 22 KV Transformer T Motor M 200 kVA 40 kVA 22/0.5 KV X= 10% 0.4 KV X= 8% Va Line On a 100-kVA base power and 22 kV base voltage at the generator side, The impedance of the transformer in per-unit is equal to: O a. 0.05 pu O b. 0.5 pu O c. 0.56 pu O d. 0.144 pu O e. 0.2 pu Of. 0.056 pu O g. None of these answers is correct

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
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...
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The 3-phase power and line-to-line voltage ratings of the electric power system shown in the following
figure are as follows:
Generator G
160 kVA
22 KV
X= 9%
Z= 2 + j5 2
X= 10%
X= 8%
Line
22 KV
Transformer T
200 kVA
22/0.5 KV
Motor M
40 kVA
0.4 KV
Line
On a 100-kVA base power and 22 kV base voltage at the generator side,
The impedance of the transformer in per-unit is equal to:
O a. 0.05 pu
O b. 0.5 pu
Oc.
0.56 pu
O d. 0.144 pu
O e. 0.2 pu
O f.
0.056 pu
O g. None of these answers is correct
Transcribed Image Text:The 3-phase power and line-to-line voltage ratings of the electric power system shown in the following figure are as follows: Generator G 160 kVA 22 KV X= 9% Z= 2 + j5 2 X= 10% X= 8% Line 22 KV Transformer T 200 kVA 22/0.5 KV Motor M 40 kVA 0.4 KV Line On a 100-kVA base power and 22 kV base voltage at the generator side, The impedance of the transformer in per-unit is equal to: O a. 0.05 pu O b. 0.5 pu Oc. 0.56 pu O d. 0.144 pu O e. 0.2 pu O f. 0.056 pu O g. None of these answers is correct
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