Power Quality Teaching Toy

• A fun and useful simulator for engineers who want to get an intuitive feel for power quality issues. FREE! (but no support)

Power Quality Videos

• Introduction to Voltage Dips/Sags: (a one minute video - 20MB)
To save the video, right-click and select "Save as"

Brief Power Quality Tutorials For Engineers

• Sags, dips, and swells: Introduction to the most common disturbance on AC mains
• Transient overvoltages: Introduction to capacitor-switching and high-frequency transients
• Harmonics: Introduction to voltage and current harmonics issues
• Flicker: Introduction to voltage flicker
• Voltage regulation: Introduction to voltage regulation issues
• Other disturbances: Frequency variations, noise bursts, and other less common problems
• How 4-terminal resistors work and why we use them

Sag Immunity Tutorials

• Tutorial #1: Common sources of voltage sags / dips
• Tutorial #2: Five ways equipment fails due to voltage sags
• Tutorial #3: Semiconductor industry voltage sag standard: SEMI F47
• Tutorial #4: Quick, inexpensive fixes that increase immunity to voltage sags

Electric Power Standards

• IEEE power quality standards
• IEC power quality standards
• Utility power quality standards
• Industry-specific power quality standards
• U.S. military power quality standards
• Other power quality standards - ANSI, CBEMA, CIGRE, country-specific, etc.