EE-424 ADVANCE ELECTRICAL MACHINES
Course
Data
EE-424 Advance Electrical Machines. Covers detailed and in depth aspects of
Electrical Machines. Transformers: Equivalent Circuit, per unit system of
measurement, voltage regulation and efficiency, three phase transformers, types
of connections, testing, parallel operation. Synchronous Generators: Equivalent
circuit and operations, Characteristics of Salient and Non-Salient poles, model
parameters, Single and parallel operation, ratings. Synchronous Motors: Basic
Principle, Equivalent Circuit, steady state operation: Torque speed
characteristics, power factor correction, starting of synchronous motors, ratings,
speed control. Induction Motors: Production of rotating field and torque,
Construction, Synchronous speed, Slip and its effect on rotor frequency and
voltage. Equivalent circuit. Power and torque. Losses, efficiency and power
factor. Torque-speed characteristic. Starting and speed control. Induction
generator
Credits
and Type
(Tick one)
1 credit hours. course (Depth)
Prerequisi Electrical Machines
te(s)
Instructor( Engr. Farooq Aslam
s)
Textbook
AC Machines Lab Manual
DC Machines Lab Manual
Course
For students to:
Objectives
1. Covers fundamental aspects of Electrical Machines.
Learning
After taking this course students will be able to recognize and use the following
Outcomes concepts, ideas, and/or tools:
1. An ability to apply knowledge of mathematics, science and engineering
2. An ability to design and conduct experiments, as well as to analyze and
interpret data
3. An ability to design a system, component, or process to meet desired
needs within realistic constraints such as economic, environmental,
social, political, ethical, health and safety, manufacturability, and
sustainability.
4. An ability to identify, formulate, and solve engineering problems
5. The broad education necessary to understand the impact of engineering
solutions in a global, economic, environmental, and societal context
6. A recognition of the need for, and an ability to engage in life-long learning
7. A knowledge of contemporary issues
8. An ability to use the techniques, skills, and modern engineering tools
necessary for engineering practice.
Student
Outcomes
Addresse
d
Topics
Covered
3a
3b
3c
3d
3e
3f
Math
/Sci
Experiments
Design
Teams
Engr
Problems
Responsibility
3g1
Oral
3g2
3h
3i
3j
3k
Written
EngrSo
lns
Impact
LL
Learning
Contemporary
Tools
1. To study different faults on a 3-phase transformer.
2. To verify the voltage ¤t relation for the star/star, star/delta, delta/star
and delta/delta connections of a 3-phase transformer.
3. To perform open and short circuit test on transformer and find copper and
core losses along with efficiency from the above tests.
4. To calculate the constants of equivalent circuit of the transformer from the
open and short circuit test.
5. To find the voltage regulation from the open and short circuit test and draw
a phasor diagram for lagging power factor.
6. To perform open and short circuit test on synchronous machine and to find
the synchronous impedances of synchronous generator.
7. To find reactance and resistance of armature winding from the above test.
8. To draw the V-curve and power factor curve of a synchronous machine from
the observed data obtained from the test i.e. Excitation current vs armature
current.
9. To perform the parallel operation on two single-phase transformers having
an equal voltage ratio.
10. To check the phase sequence of three phase supply using phase sequence
indicator.
11. To synchronize a 3-phase synchronous generator with the Bus-Bar using
the relevant equipment i.e. frequency meter, voltmeter, phase sequence
indicator and digital synchronoscope.
12. To perform the no load test and block rotor test on the three phase induction
motor.
13. To draw the circle diagram of induction motor and find the rotor Cu.loss,
stator Cu.loss, rotor current, stator input power factor & efficiency from the
above test.
14. Speed control of 3-phase wound rotor Induction motor using resistances in
the rotor circuit.
15. Speed control of Squirrel cage rotor by
Voltage Control
Frequency Control
16.Study visit to Grid Station.
Last revised: 01-07-2016.
