CCOG for MT 175 archive revision 202203
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- Effective Term:
- Summer 2022 through Winter 2025
- Course Number:
- MT 175
- Course Title:
- AC Motors - Control, Maintenance, and Troubleshooting
- Credit Hours:
- 2
- Lecture Hours:
- 10
- Lecture/Lab Hours:
- 20
- Lab Hours:
- 0
Course Description
Addendum to Course Description
Safety is emphasized throughout the course, highlighting operation and maintenance safety, lockout/ tagout and safety interlocks. Troubleshooting motor controls will also be included. Topics include voltage testing equipment as well as troubleshooting of motor control circuits and the motor starter.
Intended Outcomes for the course
Upon completion of the course students should be able to:
- Safely operate electromechanical systems involving AC motors as used in industrial, commercial, and residential applications.
- Test and measure AC motors’ performance indicators such as power, current, RPM, power factor, and temperature.
- Recognize and take corrective measures on the occurrence of problems such as the motor fails to start or to come up to speed, stalls, overheats or vibrates, or produces unusual noise.
Aspirational Goals
To help the students develop the skills needed in operating, maintaining and troubleshooting the AC motor/control system as found in industrial, commercial or residential settings.
Course Activities and Design
The course consists in a combination of lectures, where the theoretical aspect of the AC motor system will be presented and labs, where the students will perform activities focused on disassembling and reassembling of AC motors, the motor routine maintenance, the diagnosing and troubleshooting of AC motors and their control circuits.
Outcome Assessment Strategies
The students' progress will be assessed through homework assignments, exams on paper and also practical exams.
Course Content (Themes, Concepts, Issues and Skills)
- Different Types of AC Motors
- Single-Phase AC Motor Configurations
Split-Phase
Capacitor Start
Permanent Capacitor
Two-Capacitor
3. Three-Phase AC Motors and Their Control
4. Testing the performance of AC Motors
measure RPM
current, voltage,
true power, apparent power, power factor
5. Routine maintenance and troubleshooting
use the proper hand tools and methods to disassemble and reassemble a motor
clean the rotor, check for tear and wear
use the multimeter to check for continuity
the lubrication of bearings
troubleshoot various scenarios of control failure