{"id":1294,"date":"2026-07-22T05:33:09","date_gmt":"2026-07-22T05:33:09","guid":{"rendered":"https:\/\/lstransformer.com\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\/"},"modified":"2026-09-27T16:00:43","modified_gmt":"2026-09-27T16:00:43","slug":"what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding","status":"publish","type":"post","link":"https:\/\/www.lstransformer.com\/fr\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\/","title":{"rendered":"What are the main insulation and longitudinal insulation in a winding?"},"content":{"rendered":"<h1 style=\"text-align: left;\">What are the main insulation and longitudinal insulation in a winding?<b><\/b><\/h1>\n<p>The main insulation in a winding includes components such as the paper cylinder, wooden cylinder, winding end insulation, and the insulation between the static ring and the ground. These elements collectively form the primary insulation system of the winding.<\/p>\n<p>Longitudinal insulation in the winding comprises the insulation of the wire outer covering, circular simple winding layer, insulation between the static ring and line segments, and insulation between line segments (layers). These insulation components contribute to the longitudinal insulation system of the winding.<\/p>\n<p>When using circular conductors to wind a cylindrical winding, it is necessary to use a rigid insulation cylinder to address processing challenges. However, due to the relatively low electrical strength of wooden insulation, designs for transformers with voltages above 60kV and capacities exceeding 8000kVA often employ windings on supporting structures. This involves first wrapping the paper layers and then enclosing the winding around the paper cylinder. In the case of extremely large-capacity transformers, the winding may be wound on a thick cardboard cylinder.<\/p>\n<p>For cases where the end insulation level of the winding is lower than that of the first end, a graded insulation system is employed. In a graded insulation system, the distance from the first end to the iron yoke is greater than that from the last end when the voltage is high. The inner layers of a pancake winding usually do not use padding insulation, nor do they reinforce insulation or include static and angular rings. The use of graded insulation in high-voltage test transformer windings helps with heat dissipation and reduces capacitance.<\/p>\n<p>Graded insulation aids in reducing the size of the winding, simplifying the structure, facilitating manufacturing, and saving materials. However, transformers employing graded insulation are generally limited to systems with a neutrally grounded neutral point where the voltage is \u2265126kV.<\/p>\n<p><a title=\"transformers\uff0creactor\" href=\"https:\/\/www.lstransformer.com\/fr\/Transformers\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" title=\"145\" src=\"https:\/\/manage.lstransformer.com\/upload\/news\/1742206757736775.jpg\" alt=\"undefined\" width=\"375\" height=\"313\" border=\"0\" vspace=\"0\" \/><\/a><\/p>\n<h2 style=\"font-weight: bold;\">Contact<\/h2>\n<p>LuShan, heure de l'est. 1975, est un fabricant professionnel Chinois sp\u00e9cialis\u00e9 dans les transformateurs de puissance et des r\u00e9acteurs de plus de 50 ans. Les produits de pointe sont <a href=\"https:\/\/www.lstransformer.com\/fr\/\">transformateur monophas\u00e9, triphas\u00e9 transformateurs d'isolement, transformateur \u00e9lectrique, transformateur de distribution, l'\u00e9tape vers le bas et d'intensifier le transformateur de basse tension du transformateur, transformateur \u00e0 haute tension, contr\u00f4le de transformateur toro\u00efdal transformateur, transformateur R-core; inductances DC, AC r\u00e9acteurs, le filtrage du r\u00e9acteur, de ligne et de charge du r\u00e9acteur, des bobines, le filtrage du r\u00e9acteur, et interm\u00e9diaire, \u00e0 haute fr\u00e9quence produits<\/a>.<\/p>\n<p>Nos transformateurs de puissance et les r\u00e9acteurs sont largement utilis\u00e9s dans les 10 domaines d'application: transport en commun rapide, les machines de construction, les \u00e9nergies renouvelables, intelligents de fabrication, des \u00e9quipements m\u00e9dicaux, de la mine de charbon de l'explosion de la pr\u00e9vention, de l'excitation du syst\u00e8me, frittage sous vide(four), d'une climatisation centrale.<\/p>\n<p>En savoir plus sur transformateur de puissance et le r\u00e9acteur: <a href=\"https:\/\/www.lstransformer.com\/fr\/\">www.lstransformer.com<\/a>.<\/p>\n<p>Si vous souhaitez obtenir des solutions personnalis\u00e9es pour les transformateurs ou des r\u00e9acteurs, veuillez nous contacter.<br \/>\nWhatsApp\uff1a+86 13787095096<br \/>\nE-mail: marketing@hnlsdz.com<\/p>","protected":false},"excerpt":{"rendered":"<p>What are the main insulation and longitudinal insulation in a winding? The main insulation in a winding includes components such as the paper cylinder, wooden cylinder, winding end insulation, and the insulation between the static ring and the ground. These elements collectively form the primary insulation system of the winding. Longitudinal insulation in the winding [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2801,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[48],"tags":[],"class_list":["post-1294","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What are the main insulation and longitudinal insulation in a winding? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD<\/title>\n<meta name=\"description\" content=\"The main insulation in a winding includes components such as the paper cylinder, wooden cylinder, winding end insulation, and the insulation between the static ring and the ground. These elements collectively form the primary insulation system of the winding.Longitudinal insulation in the winding comprises the insulation of the wire outer covering, circular simple winding layer, insulation between the static ring and line segments, and insulation between line segments (layers). These insulation components contribute to the longitudinal insulation system of the winding.\" \/>\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.lstransformer.com\/fr\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the main insulation and longitudinal insulation in a winding? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\" \/>\n<meta property=\"og:description\" content=\"The main insulation in a winding includes components such as the paper cylinder, wooden cylinder, winding end insulation, and the insulation between the static ring and the ground. These elements collectively form the primary insulation system of the winding.Longitudinal insulation in the winding comprises the insulation of the wire outer covering, circular simple winding layer, insulation between the static ring and line segments, and insulation between line segments (layers). These insulation components contribute to the longitudinal insulation system of the winding.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.lstransformer.com\/fr\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\/\" \/>\n<meta property=\"og:site_name\" content=\"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-22T05:33:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-27T16:00:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016928586905.png\" \/>\n\t<meta property=\"og:image:width\" content=\"370\" \/>\n\t<meta property=\"og:image:height\" content=\"276\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"369703005\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"369703005\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/\"},\"author\":{\"name\":\"369703005\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#\\\/schema\\\/person\\\/674089c15f4857c19a997f886816d289\"},\"headline\":\"What are the main insulation and longitudinal insulation in a winding?\",\"datePublished\":\"2026-07-22T05:33:09+00:00\",\"dateModified\":\"2026-09-27T16:00:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/\"},\"wordCount\":445,\"publisher\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1742016928586905.png\",\"articleSection\":[\"FAQ\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/\",\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/\",\"name\":\"What are the main insulation and longitudinal insulation in a winding? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-are-the-main-insulation-and-longitudinal-insulation-in-a-winding\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1742016928586905.png\",\"datePublished\":\"2026-07-22T05:33:09+00:00\",\"dateModified\":\"2026-09-27T16:00:43+00:00\",\"description\":\"The main insulation in a winding includes components such as the paper cylinder, wooden cylinder, winding end insulation, and the insulation between the static ring and the ground. 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These elements collectively form the primary insulation system of the winding.Longitudinal insulation in the winding comprises the insulation of the wire outer covering, circular simple winding layer, insulation between the static ring and line segments, and insulation between line segments (layers). 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