4.1
2260
UNIT 4
N. Cotter
STUDY GUIDE*
To pass the unit exam, you must be able to do the following (using books and notes):
CONCEPTUAL TOOLS
Learning Objective
Reading
POWER ELECTRONICS
3-PHASE SYSTEMS
Example
1
(
pdf)
Example
2
(
pdf)
4.1. Solve for phase and line voltages and currents
in balanced three-phase circuits, including Y-Y,
Y-Δ, Δ-Y, and Δ-Δ.
Chap 11
Sec 11.1-
11.4
POWER ELECTRONICS
AC POWER
Tutorial
|
(pdf)
p(t), P, Q
E
XAMPLE
1
(
PDF
)
E
XAMPLE
2
(
PDF
)
E
XAMPLE
3
(
PDF
)
4.2. For the sinusoidal steady-state case, find the
instantaneous, average, and reactive power
delivered or absorbed by sources or circuit
elements. Find the power factor for specified
cases.
Chap 10
Sec 10.1-
10.2
POWER ELECTRONICS
AC POWER
RMS (root-mean-square)
E
XAMPLE
1
(
PDF
)
E
XAMPLE
2
(
PDF
)
4.3. Find the effective (rms) value of a given
periodic function.
Chap 9
Sec 9.1
Chap 10
Sec 10.3
Chap 16
Sec 16.7
POWER ELECTRONICS
AC POWER
Complex power
E
XAMPLE
(
PDF
)
4.4. Calculate complex power for specified circuits
and explain its meaning.
Chap 10
Sec 10.4-
10.5
POWER ELECTRONICS
3-PHASE SYSTEMS
Power
E
XAMPLE
(
PDF
)
4.5. Calculate complex power and power in
balanced three-phase circuits.
Chap 11
Sec 11.5
TRANSFORMERS
LINEAR TRANSFORMERS
Example
(
pdf)
4.6. Calculate voltages, currents, power, and
impedances in circuits containing linear
transformers.
Chap 6
Sec 6.4-
6.5
Chap 9
Sec 9.10
TRANSFORMERS
IDEAL TRANSFORMERS
Example
1
(
pdf)
Example
2
(
pdf)
4.7. Calculate voltages, currents, power, and
impedances in circuits containing ideal
transformers.
Chap 9
Sec 9.11
*The material in this handout is based extensively on concepts developed by C. H. Durney, Professor Emeritus of
the University of Utah.