Monitoring Variable Frequency Drives

Read our recommendations for monitoring VFDs for successful PQ investigations.

Variable Frequency Drives (VFDs) are increasingly common, especially with the push for energy efficiency (in residential applications) and better motor control (in industrial applications). Unfortunately, the gains made with VFDs are often at the expense of power quality– they are often sensitive to PQ problems and can also be a source of PQ problems. Some recommendations for PQ monitoring of VFD systems are presented here.

This Whitepaper Includes:

• VFD Basics
• PQ Problems Caused by VFDs
• PQ Problems that Affect VFDs
• Recommended Monitor Settings