"supraharmonics" meaning in English

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  "etymology_text": "From supra- + harmonics.",
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  "lang_code": "en",
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        {
          "ref": "2016, Sarah Rönnberg, Math Bollen, “Power quality issues in the electric power system of the future”, in The Electricity Journal, volume 29, number 10, page 57:",
          "text": "The two main sources of supraharmonics that have been identified are power-electronic converters with active or passive switching (non-intentional emission) and transmitters of power-line communication (intentional emission).",
          "type": "quote"
        },
        {
          "ref": "2023 Jan, Michalec, Łukasz, Kostyła, Paweł, Leonowicz, Zbigniew, “Supraharmonic Pollution Emitted by Nonlinear Loads in Power Networks—Ongoing Worldwide Research and Upcoming Challenges.”, in Energies, volume 16, number 1, pages 273-274:",
          "text": "The term \"supraharmonics\" was first introduced in 2013 during the summit entitled \"IEEE Power & Energy Society\" to indicate any kind of voltage and current waveform distortion within the range of frequencies from 2 to 150 kHz.",
          "type": "quote"
        },
        {
          "ref": "2024, Dimitrios Barkas, Anthoula Menti, Pavlos Pachos, Constantinos S. Psomopoulos, “Experimental investigation of the impact of environmental parameters on the supraharmonic emissions of PV inverters”, in AIMS Energy, volume 12, number 4, page 762:",
          "text": "Characteristic examples of devices that have been associated with acoustic noise resulting from supraharmonics are battery chargers for electronic equipment such as personal computers and smart phones.",
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        "Distortions to the current and voltage flow in power distribution lines that occur in the range of 2kHz-150kHz"
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  "word": "supraharmonics"
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  "etymology_text": "From supra- + harmonics.",
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          "ref": "2016, Sarah Rönnberg, Math Bollen, “Power quality issues in the electric power system of the future”, in The Electricity Journal, volume 29, number 10, page 57:",
          "text": "The two main sources of supraharmonics that have been identified are power-electronic converters with active or passive switching (non-intentional emission) and transmitters of power-line communication (intentional emission).",
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        },
        {
          "ref": "2023 Jan, Michalec, Łukasz, Kostyła, Paweł, Leonowicz, Zbigniew, “Supraharmonic Pollution Emitted by Nonlinear Loads in Power Networks—Ongoing Worldwide Research and Upcoming Challenges.”, in Energies, volume 16, number 1, pages 273-274:",
          "text": "The term \"supraharmonics\" was first introduced in 2013 during the summit entitled \"IEEE Power & Energy Society\" to indicate any kind of voltage and current waveform distortion within the range of frequencies from 2 to 150 kHz.",
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          "text": "Characteristic examples of devices that have been associated with acoustic noise resulting from supraharmonics are battery chargers for electronic equipment such as personal computers and smart phones.",
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