60 - Does a single phase VFD have the same neutral current issues as computer or LED lights?
4:02
• Harmonic Standpoint: We explore the similarities between single phase VFDs, computer power supplies, and LED lights in terms of harmonic current generation but we clarified that although the harmonic profiles are similar, the connection method (line to neutral vs. line to line) affects the presence of triplin harmonics. • Neutral Current Issues: We explain that connecting drives line to neutral could result in significant neutral current due to the accumulation of triplin harmonics. However, connecting drives line to line eliminates this issue as there's no path back to neutral, thus preventing the flow of triplin harmonics through the neutral. • Harmonic Mitigation Strategies: The discussion concluded that to avoid neutral current issues and the impact of triplin harmonics on the system, connecting drives line to line is a preferable strategy. This approach prevents the accumulation of third harmonics on the neutral, thereby mitigating potential system issues but puts the 3rd harmonics on the phase conductors so care should be taken Eaton’s Harmonic Frequently Asked Question’s FAQs collection of videos hosted by Dan Carnovale can help individuals from all different levels of education understand what harmonics are and explain many different solutions for mitigating harmonics on an electrical power system. Dan Carnovale P.E. has decades of experience in power quality and harmonics and is a recognized electrical industry expert in power quality and power systems. He is the creator and director of Eaton’s Power Systems Experience Centers (PSEC) in Pittsburgh PA and Houston TX. The PSECs provide visitors live demonstrations of hands-on power quality and harmonic situations and solutions can be seen first-hand in the Power Quality Lab. Visit Eaton’s harmonics knowledge website featuring harmonic solutions, harmonic calculators, access to white papers, and more: https://www.eaton.com/harmonics See our entire harmonics FAQs playlists: https://www.youtube.com/watch?v=U36ywxWHIy8&list=PL8XobqCtN9Z8maXVw0kYDLjmhBO275-bE For an educational overview of harmonics in person, visit one of Eaton’s Power Systems Experience Centers: http://eaton.com/experience #harmonics #powerquality #electricalengineering #electricalsafety #eatonexperience #experiencecenter
• Harmonic Standpoint: We explore the similarities between single phase VFDs, computer power supplies, and LED lights in terms of harmonic current generation but we clarified that although the harmonic profiles are similar, the connection method (line to neutral vs. line to line) affects the presence of triplin harmonics. • Neutral Current Issues: We explain that connecting drives line to neutral could result in significant neutral current due to the accumulation of triplin harmonics. However, connecting drives line to line eliminates this issue as there's no path back to neutral, thus preventing the flow of triplin harmonics through the neutral. • Harmonic Mitigation Strategies: The discussion concluded that to avoid neutral current issues and the impact of triplin harmonics on the system, connecting drives line to line is a preferable strategy. This approach prevents the accumulation of third harmonics on the neutral, thereby mitigating potential system issues but puts the 3rd harmonics on the phase conductors so care should be taken Eaton’s Harmonic Frequently Asked Question’s FAQs collection of videos hosted by Dan Carnovale can help individuals from all different levels of education understand what harmonics are and explain many different solutions for mitigating harmonics on an electrical power system. Dan Carnovale P.E. has decades of experience in power quality and harmonics and is a recognized electrical industry expert in power quality and power systems. He is the creator and director of Eaton’s Power Systems Experience Centers (PSEC) in Pittsburgh PA and Houston TX. The PSECs provide visitors live demonstrations of hands-on power quality and harmonic situations and solutions can be seen first-hand in the Power Quality Lab. Visit Eaton’s harmonics knowledge website featuring harmonic solutions, harmonic calculators, access to white papers, and more: https://www.eaton.com/harmonics See our entire harmonics FAQs playlists: https://www.youtube.com/watch?v=U36ywxWHIy8&list=PL8XobqCtN9Z8maXVw0kYDLjmhBO275-bE For an educational overview of harmonics in person, visit one of Eaton’s Power Systems Experience Centers: http://eaton.com/experience #harmonics #powerquality #electricalengineering #electricalsafety #eatonexperience #experiencecenter
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