Electrical Troubleshooting & Preventive Maintenance II

This two-day Electrical Troubleshooting course is designed for electrical maintenance workers looking to gain additional in-depth hands-on understanding of complex controls and control circuits. It is recommended that this course to be taken only after completion of the Electrical Troubleshooting & Preventive Maintenance course.

Description

Hands-on lab activities are the focus of this course.  Throughout the day, participants will troubleshoot on a large variety of systems components, ranging from forward/reversing motor control circuits to proximity switches and float switches.  Anyone who wants a chance to spend quality hands-on time and build expertise with components seen every day throughout their facilities will gain a great value from this course.

Course Outline

Day One

Advanced Skills for Electrical Troubleshooting

  • Requirements per the National Electrical Code (NEC) for control circuits, and electric motors
  • Overview of Motor rules per article 430 in the National Electrical Code
  • Learn to navigate and troubleshoot from multiple page electrical drawings
  • Using both NEMA and IEC Electrical Drawings for Troubleshooting
  • Hands-on component troubleshooting using an electrical meter
  • Learn advanced features of multimeters.
  • Learning to ask the right questions and the correct way to approach troubleshooting

Testing Field Components: Hands-on Exercises

  • Inductive proximity sensors
  • Capacitive proximity sensors
  • Magnetic proximity sensors
  • Photoelectric sensor retroreflective/ visible red-light emission
  • Float switches
  • Control Relays
  • Motor Starter Contactors
  • Overload Devices
  • Forward/Reversing motor starter
  • Solid State Timers
  • Limit Switches
  • Auxiliary Contact Blocks
  • Indicator Lamps
  • Push Buttons
  • Selector Switches – 2-position and 3-position
  • Circuit Breakers

Day Two

Build and Troubleshoot Advanced Motor Control Circuits – Hands-on Exercises

  • Multiple Stop Start Stations
  • Forward Reversing Circuits
  • Level Control Circuits
  • Test and understand all components
  • Learn how to quickly troubleshoot
  • Make field changes based on changes in the schematics
  • Add remote control capabilities

Motor Troubleshooting and Preventative Maintenance

  • Troubleshooting Single Phase and Three Phase Motors
  • Troubleshooting DC Motors
  • Important Motor Nameplate Parameters
  • Preventive Maintenance for Motors
  • Proper Tools for Motor Troubleshooting

Troubleshooting Variable Frequency Drives (VFDs)

  • VFD Terminology
  • VFD Basic Operation
  • Major Components
  • Common Problems & Corrective Actions
  • Troubleshooting

Power Quality Problems

  • Sources of Power Quality Problems
  • Test Equipment for Troubleshooting Power Quality Problems
  • Harmonics
  • Phase Unbalance

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