LAB SHEET-ExPeriment
1
Electrotechnic Lab (SKEE 2742),FKE UTM Skudai
FACULTY OF ELECTRICAL ENGINEERING
Review
Release Date
: ELECTRICAL ENGINEERING
SUbiECt
"
LABORATORY
Subject Code : SKBE2742
Last
:3
: Feb 2013
Amendment :2011
ProcedureNumber :PK-UTM
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FACULTY OF ELECTRICAL ENGINEERING
UNIVERSITI TEKNOLOGI MALAYSIA
SKUDAI CAMPUS
JOHOR
SKEE, 2742
ELE CTROTECHNIC LABORATORY
(Experiment 1)
THEVENIN & SUPERPOSITION
THEOREMS
Approved by: Head of DePartment
Prepared by:
]. PM. Dr. Azhar b. Khairuddin
2. Dr. Ahmad Safawi b. Mokhtar
3. Dr. Md. Pauzi b. Abdullah
Name:
4. Dr. Mohd Hafiz b. Habibuddin
5. Dr. Dalila bt. Mat Said
6. Faridah bt. Hussin
7. Norzanah bt' Rosmin
signature
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LAB SHEET-Experiment I
Electrotechnic Lab (SKEE 2742),FKE UTM Skudai
I.
PRELIMINARY EXERCISE (10 marks)
Important Note: You are required to do this exercise BEFORE the lab session
i.
Describe briefly the Superposition and Thevenin theorems by using an
example from your own circuit.
ii.
For the circuit in Figure 1, by using Superposition theorem, calculate
Pr at Rr: 10 C), 20 {r,30 C),40 O, 50 Q and 60 O.
iii.
iv.
v.
Repeat step
Il
and
ii by using Thevenin theorem.
Perform the circuit analysis using PSPICE to validate your results.
Discuss briefly the irnportance of Thevenin and Superposition heorems itn
circuit analysis.
Recommended Reference :
Alexander & Sadiku, oFundamental of Electric Circuit
4th edition' ,
20a
15V
10v
1",
Figure
2
1.
McGraw Hill.
LAB SHEET-ExPeriment I
Electrotechnic Lab (SKEE 2742),FKE UTM Skudai
II.
EXPERIMENT:
'Thevenin and Superposition Theorems'
IMPORTANT: You need to complete the PRELIMENARY EXCERCISE before the
laboratory session.
1.
Aim:
To solve circuit analysis problem by using Superposition theorem and Thevenin theorem.
2.
Equipments provided
:
DC power supply, ammeter, multimeter, decade resistance
3.
Instructions
:
Precaution:
i.
ii.
iii.
a.
Set the supply voltage value to the conect experimental value before connect
it to the circuit.
Make sure the multimeter or ammeters are connected at a right terminal.
Do not switch on the supply until the instructor checks all connections.
Based on the circuit in Figure 1, setup an experiment to measure the current and
voltage of the load for R;: 10 A,20 Q, 30 O, 40 C), 50 Q and 60 Q;
i.
ii.
iii.
based on the original circuit.
by using superposition theorem.
by using Thevenin thborem.
b.
Calculate the power absorbed by Rl from the measurements in step 2 a.
c.
Compare and comment on the results of both theorems against the original circuit in
terms of voltage, current and power.
d.
Discuss the advantages and disadvantages of each theorem.
20C2
lL
,l
Figure
3
l.
10v