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7472 AC Motor Control and Troubleshooting (Course)

7472 AC Motor Control and Troubleshooting (Course)

This program explains in detail the operation of reversing AC motor circuits using drum switches, manual, and magnetic starters. Decelerating circuits are also explained in detail, along with braking techniques using friction brakes, plugging switches and electric braking. Multi-speed motors are also covered including constant torque, constant horsepower and variable torque. This module also includes a thorough explanation of troubleshooting AC motors and what symptoms to look for to avoid motor failures. Also presented is the topic of 1Ø and 3Ø AC motors starting and working but not correctly and how to identify its causes and how to fix the problems.

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