61 - If you feed a 3-phase drive with single phase input, are the harmonics the same?
4:07
• Harmonics in Three Phase Drives: 6 pulse, three phase drives produce 5, 7, 11, 13… harmonics, single phase drives produce all odd harmonics: 3, 5, 7, 9, 11, 13, 15… adding the triplen harmonics with the 3rd being the largest in magnitude. Feeding a three-phase drive with a single-phase input results in different harmonic currents, specifically the presence of third and ninth harmonics, which are absent when a three-phase input is used. This insight is crucial for understanding the electrical behavior and potential issues when using single-phase inputs on three-phase drives. • Neutral Current Concerns: We discuss concerns about the neutral current, especially when multiple drives are connected in a system. It was noted that the wave shape of the harmonic current remains the same when a drive is connected line to line, but the current does not accumulate on the neutral. This point is significant for system design and ensuring the safety and efficiency of electrical systems. 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&pp=gAQBiAQB 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
• Harmonics in Three Phase Drives: 6 pulse, three phase drives produce 5, 7, 11, 13… harmonics, single phase drives produce all odd harmonics: 3, 5, 7, 9, 11, 13, 15… adding the triplen harmonics with the 3rd being the largest in magnitude. Feeding a three-phase drive with a single-phase input results in different harmonic currents, specifically the presence of third and ninth harmonics, which are absent when a three-phase input is used. This insight is crucial for understanding the electrical behavior and potential issues when using single-phase inputs on three-phase drives. • Neutral Current Concerns: We discuss concerns about the neutral current, especially when multiple drives are connected in a system. It was noted that the wave shape of the harmonic current remains the same when a drive is connected line to line, but the current does not accumulate on the neutral. This point is significant for system design and ensuring the safety and efficiency of electrical systems. 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&pp=gAQBiAQB 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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