Scheme of Work 2010 / 2011
Module / Unit Title:
Unit 61: Features and Applications of
Electrical Machines
Course / Subject Title:
Level 3 Diploma/Extended Diploma in
Electrical and Electronic Engineering
Prepared by:
R McCammon/Jason Turner
Lesson Duration:
2 sessions per week
(2 hours per session)
Start Date:
W/C Monday 3rd January 2011
End Date:
W/C Monday 4th April 2011
Unit Overview
This unit provides learners with knowledge and an understanding
of the features and applications of a range of electrical machines
and the hazards, legislation and regulations related to working
with electrical apparatus.
Learning Outcomes:
1 Know the electrical hazards and the legislation, regulations and
standards related to working with electrical apparatus
2 Understand alternating current (AC) machines
3 Understand direct current (DC) machines
4 Know how electrical machine control circuits and systems operate.
Assessment Details
Assignment 1 - DC Motors and Generators: P7 P8 M2
Assignment 2 - AC Motors and Generators: P4 P5 P6 M1 D1
Assignment 3 - Legislation and Machine Control Systems: P1 P2 P3
P9 M3 D2
QA8 B
W/C
Week
No.
What topics will be
covered
What will learners do?
How will learning be
checked?
3rd January
2011
1
Completion of
outstanding
assignment work.
Check assignments for
previous modules are
complete
Assignments handed in
3rd January
2011
1
Introduction to
Electrical
Applications unit
content.
Introduction to the
machines room and
its facilities.
1st hour – Students will
study the unit
specification.
2nd hour – Take part in
machines room demo.
Discussion.
Q and A
10th
January
2011
2
DC Motors and
Generators
Students perform
experiments to determine
basic magnetic properties.
Group discussion with
findings summarised by
lecturer.
10th
January
2011
2
Solenoid worksheet +
motor worksheet.
Build a series motor.
Quiz to test previous
understanding of
magnetism.
N3.3
17th
January
2011
3
Students will complete
assignment task related to
series and shunt
connections (descriptive).
N3.1
N3.2
17th
January
2011
3
Students study series and
shunt connections.
Compare features and
complete Assignment 1,
Q1(a)
Take measurements and
plot graphs for
assignment 1 Q1(b)
N3.3
24th
January
2011
4
Students will complete
assignment task related to
motor power and torque,
plotting graphs of results.
Students will complete
assignment task related to
electrical generators.
Magnetic Fields
Electromagnetism.
Fleming’ Left Hand
Rule. Motor
principle.
DC Motors. Series
and Shunt
connections. (P6
part – A1 Q1(a)
Motor power and
torque. Motors lab
(P6 part – A1
Q1(b))
Fleming’s Right
Hand rule.
Generators.
Generators lab. (P7
– A1 Q2(b))
Build and test generator
Derive relationships for
assignment 1.
QA8 B
Key /
Basic
Skills:
What resources are
needed?
Electronic whiteboard
with Proteus and
Blackboard for 1st
hour.
CAD room – 1 PC per
student with Proteus
software for 2nd hour.
Paper-based
resources.
Machines lab.
What Independent
Learning / Homework
will be set?
Students will complete
assignment write-ups
in own time.
Students will refine
their understanding of
the unit specification.
Paper-based
resources.
Magnets, iron filings,
compass
Paper-based
resources.
Electromagnet, Series
motor.
Paper-based
resources.
DC Series and shunt
motors
Students study
internet based
resources related to
magnetic fields
Students read and
understand solenoid
and motor-based
resources.
Students will complete
assignment task.
Assignment 1, Q1(a).
Series and shunt
motors.
Students will complete
assignment task.
Assignment 1, Q1(b).
Paper-based
resources.
DC motor-generator
rig.
Students will complete
assignment task.
Assignment 1, Q2(b).
W/C
Week
No.
What topics will be
covered
What will learners do?
How will learning be
checked?
24th
January
2011
4
DC Motor Speed
control. (M2 – A1
Q3) Complete
assignment 1.
Students will complete
assignment task related to
motor speed and direction
control.
31st
January
2011
5
AC Motors and
Generators
31st
January
2011
5
Induction Motor
continued.
(P3 – A2 Q1)
Design and test DC motor
direction and speed
control systems.
Complete Assignment 1,
Q3)
Recap production of a
rotating magnetic field.
Understand generation of
forces in rotor.
Compare synchronous
and asynchronous AC
motors.
Complete Assignment 2
Q3.
7th
February
2011
6
AC Motors.
Synchronous
motor.
Production of a rotating
magnetic field – practical.
Demonstration of a
synchronous motor.
Q and A.
Discussion and
observation of results.
7th
February
2011
6
Synchronous
generator.
(P4 – A2 Q2)
Students will complete
assignment task related to
synchronous generator.
C3.3
14th
February
2011
7
Introduction to
Transformers
Practical. Synchronous
generator.
Complete Assignment 2,
Q2.
Work thorough
Transformers handout
and complete problems.
Completion of transformer
calculations.
N3.3
ICT3.1
ICT3.2
ICT3.3
14th
February
2011
7
Transformer Types.
(P5 – A2 Q3)
Students will Complete
assignment task
describing features of two
transformers.
C3.2
C3.3
28th
February
2011
8
AC Motor Speed
Control System
(M1 – A2 Q4)
Identify features of two
transformer types
(exercise)
Complete Assignment 2,
Q3
Study AC Motor Speed
Control Systems.
Complete Assignment 2
Q4.
Students will complete
Assignment task related
to AC motor speed and
direction control.
ICT3.1
Induction motor.
Completion of transformer
calculations.
Calculations related to
induction motors.
Students will complete
assignment task related to
induction motor.
QA8 B
Key /
Basic
Skills:
ICT3.1
What resources are
needed?
Paper-based
resources.
LJ motor speed board.
What Independent
Learning / Homework
will be set?
Students will complete
assignment task.
Assignment 1, Q3.
N3.2
N3.3
Paper-based
resources.
Research Blackboard
resources.
ICT3.1
Paper-based
resources. Access to
Blackboard and the
Internet.
Students will complete
assignment task.
Assignment 2, Q3.
Paper-based
resources. Blackboard
animation of rotating
magnetic field.
Synchronous motor.
Synchronous
generator linked to
variable speed motor.
Research production
of rotating magnetic
field using Blackboard
resources.
Paper-based
resources.
Induction motor and
measuring
instruments.
Paper-based
resources.
Induction motor.
Paper-based
resources.
AC motors. Resistor
starter for wound rotor
Students will complete
assignment task.
Assignment 2, Q2.
Students complete
further calculations to
reinforce and extend
knowledge.
Students will complete
assignment task.
Assignment 2, Q3.
Students will complete
assignment task.
Assignment 2, Q4.
W/C
Week
No.
What topics will be
covered
What will learners do?
How will learning be
checked?
Key /
Basic
Skills:
What resources are
needed?
What Independent
Learning / Homework
will be set?
induction motor.
28th
February
2011
8
AC / DC motor
comparison
(D1 – A2 Q5)
7th March
2011
9
Legislation and
Machine
Control
Systems
Electrical hazards.
(P1 – A3 Q1)
Legislation,
regulations and
standards.
(P2 – A3 Q2)
7th March
2011
9
14th March
2011
10
Start / Stop / Retain
relay circuits.
(P8 – A3 Q3)
14th March
2011
10
Safety Relay
System.
21st March
2011
11
Wk11. Comparison
of two Start / Stop /
Retain relay
circuits.
(D2 – A3 Q5)
Compare the features and
applications of AC and
DC motors.
Complete Assignment 2
Q5.
Identify hazards
associated with two
different items and control
measures to minimise
risks.
Complete Assignment 3
Q1.
Identify main features of
legislation, regulations
and standards related to
working on two different
pieces of equipment.
Complete assignment 3
Q2.
Describe the operation
and use of a start / stop /
retain circuit for an AC or
DC machine.
Complete practical
exercise. Complete
assignment 3 Q3.
Study the features of a
safety relay system.
Complete assignment 3
Q4.
Compare two start / stop /
retain circuits for an AC or
DC machine. Complete
assignment 3 Q5.
Examination and
discussion of answers to
assignment task.
C3.2
C3.3
Paper-based
resources.
Blackboard resources.
Students will complete
assignment task.
Assignment 2, Q5.
Thought-shower on
hazards. Group
discussion leading to
production of a
comparison table.
C3.2
ICT3.1
Paper-based
resources.
Blackboard resources
related to legislation.
Students will complete
assignment task.
Assignment 3, Q1.
Discussion with students,
related to sources
identified, information
obtained and relevance.
Completion of assignment
task.
C3.2
ICT3.1
Paper-based
resources.
Blackboard resources
related to legislation,
regulations and
standards.
Students will complete
assignment task.
Assignment 3, Q2.
Electrical machines
laboratory, including
motors and control
panel.
Students will complete
assignment task.
Assignment 3, Q3.
Electrical machines
laboratory, including
motors, safety relay
and control panel.
Students will complete
assignment task.
Assignment 3, Q4.
Paper-based
resources.
Internet and
Blackboard for
research.
Students will complete
assignment task.
Assignment 3, Q5.
Group discussion.
Q & A.
Completion of practical
exercise.
Completion of assignment
question.
Group discussion.
Observation of practical
exercise.
Completion of assignment
task.
Group discussion related
to identified circuits.
Group discussion leading
to production of a
comparison table.
QA8 B
ICT3.1
W/C
21st March
2011
Week
No.
11
What topics will be
covered
Assignments.
What will learners do?
Completion of
assignments and remedial
work.
How will learning be
checked?
Completion of assignment
task.
Individual and small group
discussions. Q and A.
Observation of student
work.
QA8 B
Key /
Basic
Skills:
What resources are
needed?
What Independent
Learning / Homework
will be set?
Paper-based
resources. Interactive
whiteboard.
Blackboard.
Students to complete
all outstanding work.