Part a 04. Figure Q4.1 shows a three phase power system with one generator, twotransformers, a line and a load.otZ. -2+(1+Y)G)XT -3.7%s00 MVA132 13.2AVVen= 132 kVX 6%R 0.02 )500 MVA13:1KVFigure Q4.1: A Three Phase Power SystemWhere Y is the last digit of your student number. For example, if yourstudent number is C2000123, then Z is 2+/(1+3)=D2+14Oa)Briefly explain the importance of reactive power in the analysis of powersystem performance.b)For the power system depicted in Figure Q4.1.()Determine "sensible" values for base apparent power and voltage.Explain your choice.(1) Using your chosen base values of apparent power and voltage,calculate the base impedance and per unit impedances in thegenerator, Irne and load sections.(1w) Convert the transformer nameplate impedance (given underneaththeir schematcs symbols in Figure Q4.1 as a percentage) into per-unit values suited to your chosen apparent power and voltage bases.(rv) Calculthe per-unit current(v)Find the actual current in the generator. Iine and load sections(v) Calculate the total real power dissipated, and the reactive powerabsorbed/generated in the load.

(a) AC power system has two types of power. Active Power Reactive Power The power which is…

Answered: a) Biefly explain the importance of…

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Electrical Engineering

a) Biefly explain the importance of reactive power in the analysis of power system performance.

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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Question

Part a

04. Figure Q4.1 shows a three phase power system with one generator, two
transformers, a line and a load.
ot
Z. -2+(1+Y)
G)
XT -3.7%
s00 MVA
132 13.2AV
Ven= 132 kV
X 6%
R 0.02 )
500 MVA
13:1KV
Figure Q4.1: A Three Phase Power System
Where Y is the last digit of your student number. For example, if your
student number is C2000123, then Z is 2+/(1+3)=D2+14O
a)
Briefly explain the importance of reactive power in the analysis of power
system performance.
b)
For the power system depicted in Figure Q4.1.
()
Determine "sensible" values for base apparent power and voltage.
Explain your choice.
(1) Using your chosen base values of apparent power and voltage,
calculate the base impedance and per unit impedances in the
generator, Irne and load sections.
(1w) Convert the transformer nameplate impedance (given underneath
their schematcs symbols in Figure Q4.1 as a percentage) into per-
unit values suited to your chosen apparent power and voltage bases.
(rv) Calcul
the per-unit current
(v)
Find the actual current in the generator. Iine and load sections
(v) Calculate the total real power dissipated, and the reactive power
absorbed/generated in the load.

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