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