{"id":6353,"date":"2021-03-30T15:43:31","date_gmt":"2021-03-30T13:43:31","guid":{"rendered":"https:\/\/www.gremco.de\/?p=6353"},"modified":"2022-10-25T13:45:22","modified_gmt":"2022-10-25T11:45:22","slug":"functionality-applications-litz-wire","status":"publish","type":"post","link":"https:\/\/www.gremco.de\/en\/magazin\/functionality-applications-litz-wire\/","title":{"rendered":"Litz Wire: modes of operation and applications"},"content":{"rendered":"<p>A <strong>Litz wire<\/strong> is an electrical conductor consisting of thin individual wires, which is used in electrical engineering for the transmission of high-frequency alternating current. The individual wires are often fine wires made of a copper alloy or electrolytic copper. In the manufacture of a <a href=\"https:\/\/www.gremco.de\/en\/wire-and-cable-products\/litz-wire\/\">Litz wire<\/a>, the individual strands are first drawn and then insulated with a layer of lacquer. They are then bundled or stranded according to prescribed patterns so that, on average, each wire occupies as many places as possible in the total cross-section of the <strong>stranded wire<\/strong>. This process can also involve several levels so that a group of twisted wires is, in turn, twisted together. This action distributes the current evenly among the stranded wires, which reduces resistance.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-medium wp-image-6349\" src=\"https:\/\/www.gremco.de\/app\/uploads\/2021\/03\/Litzendraht-300x157.png\" alt=\"stranded wire\" width=\"300\" height=\"157\" srcset=\"https:\/\/www.gremco.de\/app\/uploads\/2021\/03\/Litzendraht-300x157.png 300w, https:\/\/www.gremco.de\/app\/uploads\/2021\/03\/Litzendraht.png 400w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>Effects of stranded wire<\/h2>\n<p>In <strong>high-frequency<\/strong> technology, certain negative and limiting electrical influences can be observed. To be mentioned in this context are the:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><em>Skin effect<\/em>: there is an accumulation of the electrically charged particles in the outer area of the conductor, which means that only a limited part of the conductor is used. A reduction to many small and insulated wires with less than one skin depth causes a reduction or avoidance of the skin effect, ensuring an increase of the area involved in the current transport.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><em>Proximity effect<\/em>: The mutual influence of charged particles in conductors can cause a one-sided distribution. By constructing the stranded wire as a Milliken conductor, in which the individual wires are insulated from each other and are located alternately on the inside and outside of the overall cross-section, which leads to an uneven bundling of the individual strands, this effect can be avoided by the resulting irritation.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Thus, to rectify these negative factors and reduce AC losses in high-frequency windings, which become noticeable above a frequency of 50kHz, the use of Litz wire is an obvious solution.<\/p>\n<p>&nbsp;<\/p>\n<h2>Litz wire from GREMCO<\/h2>\n<p>In cooperation with our partner New England Wire Technologies, we offer a diversified range of customized Litz wires in various forms. To be mentioned here are:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Shaped and compacted stranded wires<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Rectangular braided stranded wires<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Round stranded wires<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Special stranded wires<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>The problem of insulation loss can be avoided by using optional insulation of conductors with thin insulation layers made of various high-quality polymer materials extruded in two (supplementary) or three (reinforced) layers. This also ensures different temperature resistance and high mechanical strength.<\/p>\n<p>Our <a href=\"https:\/\/www.gremco.de\/en\/magazin\/approvals-cable-protection\/\">UL\/CSA<\/a>-approved stranded wires also have high mechanical strength and excellent chemical resistance. Furthermore, the high energy density of Litz wire also ensures high efficiency.<\/p>\n<p>&nbsp;<\/p>\n<h2>Applications of Litz wire<\/h2>\n<p>Typical applications of this technology are:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>In <a href=\"https:\/\/www.gremco.de\/en\/industrial-and-environmental-technology\/\">industrial and environmental technology<\/a> in windings of electric motors, including wind turbines and drive motors for <a href=\"https:\/\/www.gremco.de\/en\/magazin\/heat-protection-electromobility\/\">electric mobility<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>In other high-frequency areas, for example in frequency converters, inverters and induction coils<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>In the field of inductivity, for example in inductive heat sources (hotplates) and inductive charging in e-mobility<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>In <a href=\"https:\/\/www.gremco.de\/en\/medical-equipment\/\">medical technology<\/a> in computer and magnetic resonance tomographs<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"A Litz wire is an electrical conductor consisting of thin individual wires, which is used in electrical engineering for the transmission of high-frequency alternating current. The individual wires are often fine wires made of a copper alloy or electrolytic copper. In the manufacture of a Litz wire, the individual strands are first drawn and then[&#8230;]","protected":false},"author":16,"featured_media":6347,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[689],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v18.2.1 (Yoast SEO v18.4.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Litz Wire: modes of operation and applications<\/title>\n<meta name=\"description\" content=\"A Litz wire is an electrical conductor, which is used in electrical engineering for the transmission of high-frequency alternating current.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gremco.de\/en\/magazin\/functionality-applications-litz-wire\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" 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