TTC Skilled Trades Training - UAW-Chrysler.com

Industrial Maintenance:
TROUBLESHOOTING AC MOTORS (ACT 100)
Course Description
The course provides participants with the knowledge to troubleshoot and repair AC motor
drives.
Learning Outcome
Upon completion of this course, participants should be able to:
1. Know the effect of Volts, Hertz and electronic fundamentals on motor operation;
2. Troubleshoot Power Control Devices such as inverter components, transistors, SCRs,
and GTOs;
3. Identify three-phase bridge operation and faults;
4. Know the different types of motors with an emphasis on three-phase field rotation;
5. Identify failures in converters and inverters; and
6. Troubleshoot AC drives (VVVF and PWM drives) to the board level.
Course Objective
To provide the participant the skills necessary to troubleshoot AC motor faults, determine
the root cause and decide upon a plan of action for AC motor repair. The participant will be
able to perform routine maintenance on various AC motors.
Major Topics Covered
• AC motor theory, AC advantages, magnetic principles, synchronous speed, three-phase
motor control, rated torque, horsepower curves
• Motor control, AC motor operations, three-phase measurement, inverters, power
circuits, control circuits, troubleshooting tips
Prerequisite
Electrical/Electronic Fundamentals (IET 105) or a demonstrated knowledge of the fundamentals
of electrical and electronic troubleshooting and repair procedures.
Class Size
12
Course Duration
40 hours
2 hours
39