Mar 28, 2024  
2021-2022 College Catalog 
    
2021-2022 College Catalog [ARCHIVED CATALOG]

AIT 225 - Electrical Systems II

3 Credits, 5 Contact Hours
2 lecture periods 3 lab periods

Continuation of AIT 125 . Overview of the area of electrical systems of a manufacturing facility. Preparation to sit for the NIMS Duty Area 5: Electrical Systems Certification Exam.

Prerequisite(s): AIT 125  
  button image Prior Learning and link to PLA webpage



Course Learning Outcomes
  1. Install and test DC, single AC, and 3-phase AC electric motors in a manual motor control circuit.
  2. Test and repair machine electrical ground.
  3. Troubleshoot an electrical motor relay control circuit.
  4. Test and replace electrical control wiring using: terminal attachment, and using solder attachment.
  5. Effectively use computer applications, information systems, and programming.

 


Outline:
  1. Installing, Testing DC Electric Motors in a Manual Motor Control Circuit
    1. Installing/connecting DC electric motors to a manual switch (given a power schematic)
    2. Operation of a DC electric motor
    3. Operation of DC motor configurations (e.g. compound, series, shunt)
    4. DC motor specifications interpretations
    5. Multimeter and mega-ohmmeter (megger) to test a DC motor
    6. Operation of a DC speed controller (its function/purpose)
    7. DC motor name plate interpretation
  2. Installing, Testing Single and 3-Phase AC Electric Motors in a Manual Motor Control Circuit
    1. Installing/connecting AC single-phase electric motors to a manual motor starter (given a power schematic)
    2. Installing/connecting AC 3-phase electric motor to a manual motor starter (given a power schematic)
    3. Operation of single-phase electric motor: capacitor start, capacitor start/run, and split capacitor
    4. AC single phase and 3-phase motor specifications interpretations
    5. Multimeter and mega-ohmmeter (megger) to test an AC motor
    6. Operation of a manual motor starter
    7. Operation of a 3-phase motor
    8. Operation and function of a bearing grounding ring
    9. Function of a motor break
    10. AC motor name plate interpretation
    11. How to select an AC motor overload
  3. Testing, Repairing Machine Electrical Ground
    1. Methods of grounding and bonding machines per NEC code and their respective applications
    2. Operation of electric motor grounding rings
    3. Identifying types of machine grounds
    4. Operation of a grounding conductor
    5. Machine ground testing (to verify correct operation)
    6. Machine ground repair
  4. Troubleshooting an Electrical Motor Relay Control Circuit
    1. Types of failures of basic electrical relay components and electric motors
    2. Basic electrical components troubleshooting (in an electrical relay control circuit using in-circuit tests)
    3. Multimeter to take electrical circuit readings during in-circuit testing
    4. Systematic methodologies to troubleshoot electrical relay control circuits with AC and DC motors with various symptoms
  5. Testing, Replacing Electrical Control Wiring using Terminal Attachment
    1. Performing a continuity test on wiring connected via all types of terminals
    2. How to size wiring for a control circuit (given voltage and current requirements and NEC code)
    3. Interpreting wiring specifications, including standard color coding
    4. Wire stripping
    5. Attaching wires to terminals
    6. Types of wire and their application
  6. Testing, Replacing Electrical Control Wiring using Solder Attachment
    1. Performing a continuity test on wiring connected via soldering
    2. Wire preparation for soldering
    3. Soldering wire to terminals
    4. Testing/inspecting solder joint for integrity
    5. Types of soldering, solder materials, and their application


Effective Term:
Full Academic Year 2019/20