ERIE COMMUNITY COLLEGE – NORTH
ELECTRICAL ENGINEERING TECHNOLOGY
COURSE OUTLINE
COURSE NUMBER & TITLE:
IE140 AC/DC Machines
CURRICULUM:
Industrial Technology
CATALOG DESCRIPTION:
Topics include: review of AC voltage and current phase relationship and computations of
reactance and power; transformers and transformer applications; introduction to generators
and motors; single-phase motors; three-phase alternators and motors; DC motors and
generators and AC and DC motor control fundamentals. Experiments include: AC phasor
computations, single-phase transformers, three-phase wye and delta connected
transformers, single-phase AC motor characteristics, three-phase alternators, three-phase
motors, DC motor and generator characteristics, simple motor starter and control circuits.
Prerequisites: IE 100 and IE101.
(N)
DURATION OF INSTRUCTIONAL PERIOD:
Lecture: Two (2) fifty (50) minute periods per week Lab: Once per week - 100 min.
ACADEMIC CREDIT HOURS:
CONTACT HOURS:
LECTURE, LAB, CREDIT HOURS:
Three (3.0) Credit Hours
Four (4.0) Contact Hours
(2-2-3)
SUGGESTED TEXT/ COURSE MATERIAL:
Electric Motor Control Systems by Patrick & Fardo
COURSE OUTCOMES:
At the completion of the course, the student will be able to:
1. Relate fundamental laws governing electrical machines.
2. Identify the operational differences between various DC motors and generator systems.
3. Identify and describe various 3-phase motor systems.
4. Understand the operation and application of 3-phase induction and synchronous motors.
5. Describe the difference between single and 3-phase motors.
6. Understand the operation and usage of power transformers.
7. Understand the operation and usage of motor control.
8. Reinforce theoretical concepts by applying them to actual machines.
9. Identify the characteristic differences between various DC motors and generator system.
10. Identify and describe operating characteristics of various 3-phase motor systems
PROGRAM COMPETENCIES: N/A
SUNY GENERAL EDUCATION TEN KNOWLEDGE AREAS: N/A
ECC GRADUATE LEARNING OUTCOMES:
1. Communicate effectively.
2. Read and think critically.
3. Apply appropriate mathematical procedures and quantitative
Course Objectives
1,5,10
1-10
1-10
methods.
10. Demonstrate competence with computers and technology
ASSESSMENT OF STUDENT LEARNING:
At least three hourly tests
Lab Reports
Total Grade
8
60%
40%
100%
Total score averaged and presented as a letter grade:
A = 90%
B = 80%
C = 70%
D = 60%
F = 50%
RELATED LIBRARY PROJECTS: None
LECTURE TOPICAL OUTLINE:
WEEKS
I.
INTRODUCTION
1. Overview of course, syllabus, grading
2/3
II.
REVIEW
1. AC circuits and power
2. Magnetics
3. Electromagnetics induction
3/3
III.
TRANSFORMERS
1. Theory of operation, loading effects
2. Construction, ratings, losses and efficiency, types
3. Single-phase connections
4/3
HOURLY 1
1/3
IV.
TRANSFORMER APPLICATION
1. Review of 3Ø
2. Wye-Delta connections
3. Autotransformers
3/3
V.
DC GENERATOR
1. Theory of E-M generation
2. Characteristics, construction, losses/efficiency
3. Types of generators
3/3
VI.
DC MOTOR
1. Theory of motors, mechanical fundamentals
2. Construction, characteristics, starting-stopping
3. Types of motors
5/3
HOURLY 2
VII.
3Ø
1.
2.
3.
4.
AC MOTORS
Theory of AC motor operation
Characteristics, construction, losses/efficiency
Types of motors
Starting/stopping
1/3
5/3
VIII.
SINGLE-PHASE MOTORS
1. Theory of operation, characteristics, types
2. Types of motors
HOURLY 3
2/3
1/3
IX.
DC MOTOR CONTROL
6/3
X.
AC MOTOR CONTROL
7/3
COMPREHENSIVE FINAL
LAB:
I.
INTRODUCTION
1. Overview of labs, syllabus, evaluation, reports
2. Lab safety wiring methods
1
II.
FUSES/RELAY CURRENT LIMITS
1
III.
TRANSFORMER OPERATION
1. Single-phase, phasing open circuit/short circuit test
2. Transformer loading
3. 3Ø - Wye-Delta connections
2
IV.
DC GENERATOR OPERATION
1. Phasing; separately-excited
2. Shunt and compound generators
2
V.
DC MOTOR OPERATION
1. Series motor
2. Shunt and compound motors
2
VI.
SINGLE DC CONTROLS
1. Starting
2. Stopping
2
VII.
AC INDUCTION MOTOR OPERATION
2
VIII.
DC MOTOR SPEED CONTROL
Acceleration
1
IX.
AC MOTOR SPEED CONTROL
Velocity profile
1
PREPARED BY:
Al Ashman, June, 2000
REVISED BY:
Anthony Dalessio, June, 2009
APPROVED BY:
EET Curriculum Committee, July 2009