Exercise 15MVA 11kV T2 3 38 j0.15 pu Line (200+j500) N 20MVA AY YA 11kV 25MVA 20MVA Load j0.15 pu 12.5/132kV j0.1 pu 132/12.5kV j0.1 pu 5MVA 11kV 0.8 lag pf (a) Dithe impedance diagram for the 3-phase system in per-unit. Choose bus voltage of 132kV for the transmission line and a base voltamper of 20MVA. Neglect transformer phase shift and magnetizing impedance. (b) If the motor is a synchrounus machine drawing 15MVA at 0.9 leading pf and the terminal voltage is 1.1 pu, find the generator bus voltage and generator current.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Power systems
Exercise
4
15MVA
T1
T2
11kV
M
jo.15 pu
Line
(200+j500) N
20MVA
ΔΥ
YA
11kV
25MVA
20MVA
Load
j0.15 pu
12.5/132kV
j0.1 pu
132/12.5kV
j0.1 pu
5MVA
11kV
0.8 lag pf
(a) Drthe impedance diagram for the 3-phase system in per-unit. Choose a
bus voltage of 132kV for the transmission line and a base voltamper of
20MVA. Neglect transformer phase shift and magnetizing impedance.
(b) If the motor is a synchrounus machine drawing 15MVA at 0.9 leading pf
and the terminal voltage is 1.1 pu, find the generator bus voltage and
generator current.
Transcribed Image Text:Exercise 4 15MVA T1 T2 11kV M jo.15 pu Line (200+j500) N 20MVA ΔΥ YA 11kV 25MVA 20MVA Load j0.15 pu 12.5/132kV j0.1 pu 132/12.5kV j0.1 pu 5MVA 11kV 0.8 lag pf (a) Drthe impedance diagram for the 3-phase system in per-unit. Choose a bus voltage of 132kV for the transmission line and a base voltamper of 20MVA. Neglect transformer phase shift and magnetizing impedance. (b) If the motor is a synchrounus machine drawing 15MVA at 0.9 leading pf and the terminal voltage is 1.1 pu, find the generator bus voltage and generator current.
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