ELT 252 Motors & Controls
Course Description
Enables the student to study, construct, test, and evaluate basic industrial control systems, including AC/DC motors, stepper motors, power sources, generators, tachometers, line diagrams and logic functions. Covers safety standards and preventive maintenance.
Competencies
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Describe the cause and effect of electrical shock.
- Review and practice measures to prevent electrical shock.
- List and observe special precautions necessary when dealing with motors and controllers.
- Explain the construction and uses of industrial switching components (manually operated switches, mechanically operated switches, solenoids, electromagnetic relays, solid-state relays).
- Understand the design and installation of industrial power supplies (linear voltage regulators, switching voltage regulators, emergency power supplies, and three-phase power supplies).
- Test and analyze the characteristics of AC and DC motors (series motor, compound motor, shunt motor, universal motor, induction motor, synchronous motor, and stepper motor).
- Test and analyze the characteristics of armature current, field current, and load characteristics (series generators, shunt generators, separately excited generators, and generator regulators).
- Recognize and analyze the effects of series field troubles on motor current and R.P.M.
- Recognize and analyze the effects of shunt motors (open field, shorted field).
- Diagnose troubles in field control circuits and armature circuits.