Lesson series

Variable Frequency Drives

This training module is designed to familiarize the student whether beginner or expert with the essential features, functions and benefits of Variable Frequency Drives (VFD). This course qualifies for NETA 1.5 CTD credit, 1.5 CEU credit for the State of Pennsylvania and 1.5 CEU State of Delaware. Course Length - 1.5 Hours
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What's included?

  • Course Outline
  • VFD Basics
  • Why Drives?
  • How a drive works
  • Drive Terminology
  • VFD Types
  • VFD Manufacturers
  • Applications and Considerations
  • Standards
  • Options and Accessories
  • Bypass history and Types
  • Bypass Types
  • NEMA vs. IP Enclosure Ratings
  • Selection Factors

Learning Objectives 

Upon completion of this course, the student will be qualified to:
• Understand the Features of Drives
• Identify the components
• Identify the types of VFDs
• Recognize the applicable standards
• Understand how a VFD functions
• Know Manufacturers’ Models
• Understand Aftermarket Options
• Recognize the key selection factors


 You will also learn how harmonics have an effect on electrical systems.

Course Lessons