Wilbert Rey D. Tarnate
Instructor
Explain the necessity of transformers in power
systems
Visualize magnetic circuits
Include ideal transformers in circuit analysis
Interpret Transformer Ratings
2
Consider the following single-phase system:
A load consumes
EEE 3 WFX/WFY Practice Set 1
Problem # 1:
Figure 1 shows a circuit having known and unknown voltages and currents.
E3
3A
E6
E2
E7
7A
+
20V
E4
E1
X
E5
Y
+
5V
AC Circuit Analysis (Part 1)
EEE3 Lecture 7
Objec6ves
De,ine the characteristics of sinusoidal AC voltages.
Identify the properties of sinusoids
Identify leading and lagging sinusoids
Visualize how inductors and cap
1
Principle of Equivalence,
Series And Parallel Connection,
Thevenin Equivalent Circuit
EEE 3 Lecture 03
2
Objectives
State the principle of equivalence
Use equivalence to simplify resistors in series and resistors
in parallel.
Apply current and voltag
Nodal Analysis
And Mesh Analysis
EEE 3 Lecture 04
2
Objec3ves
Determine currents and voltages in a circuit using Nodal
Analysis
Determine currents and voltages in a circuit using Mesh
Analysis
3
What shall w
Power In AC Circuits
EEE 3 Lecture 9
Objec3ves
De,ine, differentiate, and calculate the
real,
reactive, and
apparent powers
consumed or generated by circuit elements.
Outline
Power in DC vs Power in
Nodal Analysis
And Mesh Analysis
EEE 3 Lecture 04
2
Objec3ves
Determine currents and voltages in a circuit using Nodal
Analysis
Determine currents and voltages in a circuit using Mesh
Analysis
3
What shall w
DC Machines and Ba.eries
EEE 3 Lecture 05
2
Objec3ves
Include DC generators and DC motors in circuit analysis
Understand the ratings associated with DC Machines
Find the input, output, and lost power in DC Machi
EEE 3 Exercises - Week 1
Q1:
Five equipment are connected to each other through conducting wires as shown in the
figure below.
A. Determine which components are absorbing power and which are delivering
power?
B. Is conservation of power satisfied? Explain
EEE 3 Exercises - Week 2
Instructions: Use KCL, KVL, and Ohms Law to answer the problems below. This exercise is
good for 45 minutes and should be answered by groups of 3. Write the complete
solutions on sheets of pad papers and box the final answers.
+
V
Practice Set 1 Solution Key
Problem # 1:
A. Nodes: 7; Loops: 7; Meshes: 3
B. Correcting the negative voltages and currents by reversing the voltage polarity
and current directions:
+ 2V