Electrical Motor/Generator Control
Course Number: EET 141
Transcript Title: Electr Motor/Generator Control
Created: May 12, 2014
Updated: February 23, 2016
Total Credits: 5
Lecture Hours: 40
Lecture / Lab Hours: 0
Lab Hours: 30
Satisfies Cultural Literacy requirement: No
Satisfies General Education requirement: No
Grading options: A-F (default), audit
Repeats available for credit: 0
Examines electrical circuits, electromagnetism, AC and DC electrical theory, industrial sensors, voltage and relays, motor controls, AC and DC motors and generators, and power distribution systems. Prerequisite: EET 112.
Upon successful completion of this course, students will be able to:
- Apply principles of logical thought and safety when working with electricity, electronics, and mechanical systems.
- Measure the performance of AC and DC motors and generators.
- Use electrical and mechanical theory when maintaining and repairing power generation equipment.
- Distinguish between ground, single phase, residential 220V, and three phase power and how these apply to motors, generators and their associated controls.
- Follow manufacturers’ specifications when maintaining and repairing mechanical and electrical equipment associated with AC and DC controls.
- Build PLC control circuits related to single and three phase controls for motors and generators.
Outcome Assessment Strategies
Assessment methods are to be determined by the instructor. Typically, in class exams and quizzes along with homework assignments are used. Lab work is typically assessed by informal and formal lab reports, oral presentation, and possibly a lab exam. Evaluation is by unit exams, homework, and a comprehensive final exam.
Course Activities and Design
Lecture and discussion are the instructional methods used. Weekly homework is assigned. Laboratory activity includes building circuits on solderless circuit boards, electrical boards, making circuit measurements using test equipment, and electrical trades equipment, analyzing test data, and comparing predictions to theory and calculations.
Course Content (Themes, Concepts, Issues and Skills)
Apply safety principals to electrical and mechanical circuits.
1.0 Electrical Diagramming Skills.
2.0 Magnetism and Motion, DC.
Instructional Goal: To introduce magnetic fields, solenoids, DC motors, and DC generators.
3.0 AC Generators, Transformers, and Motors.
Instructional Goal: To introduce the concepts of AC solenoids, transformers, generators, and motors and manufacturers specifications.
4.0 Contactors and Motor Starters.
Instructional Goal: To explore types of switching used to control motors and generators.
5.0 Control Devices, Reversing Motor Circuits.
Instructional Goal: To introduce concepts of motor reversing control circuits.
6.0 Relays and Solid State Starters.
Instructional Goal: To introduce Relays and solid state starters.
7.0 Series - Power Distribution Systems.
Instructional Goal: To understand utilities role in power generation and transmission, and determine the common voltage sources associated with power distribution systems.
8.0 High Power Solid State Devices.
Instructional Goal: Introduce high power solid state devices, common sensors and control devices.
9.0 Reduced Voltage Starting.
Instructional Goal: Introduce methods of starting electric motors and solving related current surges.
10.0 Motor Speed Control, Acceleration and Deceleration Methods.
Instructional Goal: Introduce methods of controlling motor speed and motor braking.
11.0 PLC. Automatic control of motor and generator circuits.