MCCCD Program Description

Electrical Systems 2

Course: AIT225

First Term: 2019 Fall

Lecture 3.0 Credit(s) 2.0 Period(s) 2.0 Load
Subject Type: Occupational
Load Formula: T- Lab Load

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

MCCCD Official Course Competencies
1. Install and test DC electric motors in a manual motor control circuit. (I) 2. Install and test single and 3-phase AC electric motors in a manual motor control circuit. (II) 3. Test and repair machine electrical ground. (III) 4. Troubleshoot an electrical motor relay control circuit. (IV) 5. Test and replace electrical control wiring using terminal attachment. (V) 6. Test and replace electrical control wiring using solder attachment. (VI)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.

MCCCD Official Course Outline
I. Installing, testing DC electric motors in a manual motor control circuit A. Installing/connecting DC electric motors to a manual switch (given a power schematic) B. Operation of a DC electric motor C. Operation of DC motor configurations (e.g. compound, series, shunt) D. DC motor specifications interpretations E. Multimeter and mega-ohmmeter (megger) to test a DC motor F. Operation of a DC speed controller (its function/purpose) G. DC motor name plate interpretation II. Installing, testing single and 3-phase AC electric motors in a manual motor control circuit A. Installing/connecting AC single-phase electric motors to a manual motor starter (given a power schematic) B. Installing/connecting AC 3-phase electric motor to a manual motor starter (given a power schematic) C. Operation of single-phase electric motor: capacitor start, capacitor start/run, and split capacitor D. AC single phase and 3-phase motor specifications interpretations E. Multimeter and mega-ohmmeter (megger) to test an AC motor F. Operation of a manual motor starter G. Operation of a 3-phase motor H. Operation and function of a bearing grounding ring I. Function of a motor break J. AC motor name plate interpretation K. How to select an AC motor overload III. Testing, repairing machine electrical ground A. Methods of grounding and bonding machines per National Electrical Code (NEC) and their respective applications B. Operation of electric motor grounding rings C. Identifying types of machine grounds D. Operation of a grounding conductor E. Machine ground testing (to verify correct operation) F. Machine ground repair IV. Troubleshooting an electrical motor relay control circuit A. Types of failures of basic electrical relay components and electric motors B. Basic electrical components troubleshooting (in an electrical relay control circuit using in-circuit tests) C. Multimeter to take electrical circuit readings during in-circuit testing D. Systematic methodologies to troubleshoot electrical relay control circuits with AC and DC motors with various symptoms V. Testing, replacing electrical control wiring using terminal attachment A. Performing a continuity test on wiring connected via all types of terminals B. How to size wiring for a control circuit (given voltage and current requirements and National Electrical Code (NEC)) C. Interpreting wiring specifications, including standard color coding D. Wire stripping E. Attaching wires to terminals F. Types of wire and their application VI. Testing, replacing electrical control wiring using solder attachment A. Performing a continuity test on wiring connected via soldering B. Wire preparation for soldering C. Soldering wire to terminals D. Testing/inspecting solder joint for integrity E. Types of soldering, solder materials, and their application

MCCCD Governing Board Approval Date: March 26, 2019

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.