Most AC motors are started through a standardized control system designed to protect the motor, the circuit, and operating personnel. This training tool focuses on ladder diagrams, wiring, and troubleshooting techniques for the most common motor used in industry, the AC induction motor. New interactive exercises and quizzes help you hone your troubleshooting skills.
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Purpose of a Motor Starter
Components of a Motor Control Circuit
NEMA Starter Size Numbering System
Various Motor Starting Requirements
- Single Speed, Multiple Speed, Reversing, Reduced Voltage, etc.
Common Motor Circuits
Symbols for Control Components
Magnetic Motor Starter Operation
Standard Two and Three Wire Control
Wiring Diagrams vs. Ladder Diagrams
Troubleshooting Using Ladder Diagrams
Variations on the Motor Control Circuit
120-Volt Control vs. 480/240-Volt Control
Proper Fusing and Grounding
Multiple Start/Stop Stations
Single Phase Motor Starting
Time Delay and Latching Relays
Pilot Devices - Pressure, Temperature, Level, and Limit Switches