{"id":2295,"date":"2025-12-24T09:19:15","date_gmt":"2025-12-24T09:19:15","guid":{"rendered":"https:\/\/xbrele.com\/?p=2295"},"modified":"2026-04-07T15:13:08","modified_gmt":"2026-04-07T15:13:08","slug":"hanzhong-750kv-uhv-transmission-project","status":"publish","type":"post","link":"https:\/\/xbrele.com\/fr\/hanzhong-750kv-uhv-transmission-project\/","title":{"rendered":"Une avanc\u00e9e majeure pour le r\u00e9seau \u00e9lectrique chinois : le projet UHV 750 kV de Hanzhong traverse les montagnes enneig\u00e9es du Qinling"},"content":{"rendered":"<h4 class=\"wp-block-heading\" id=\"executive-summary\"><strong>R\u00e9sum\u00e9<\/strong><\/h4>\n\n\n\n<p>Le 23 d\u00e9cembre 2025, le <strong>Projet de transport et de sous-station \u00e0 tr\u00e8s haute tension (THT) 750 kV \u00e0 Hanzhong<\/strong> a \u00e9t\u00e9 officiellement mis en service dans la province du Shaanxi, en Chine.<sup><\/sup><sup><\/sup>. Ce projet historique marque l'entr\u00e9e du r\u00e9seau \u00e9lectrique du Shaanxi dans l'\u00e8re de l'UHV, am\u00e9liorant consid\u00e9rablement la fiabilit\u00e9 \u00e9nerg\u00e9tique r\u00e9gionale et soutenant la transition vers une \u00e9nergie propre.<sup><\/sup><sup><\/sup>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"434\" src=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-1024x434.webp\" alt=\"La ligne de transport d&#039;\u00e9lectricit\u00e9 \u00e0 tr\u00e8s haute tension (750 kV) de Hanzhong traverse les montagnes enneig\u00e9es de Qinling, d\u00e9montrant la fiabilit\u00e9 du r\u00e9seau \u00e9lectrique \u00e0 haute altitude.\" class=\"wp-image-2296\" srcset=\"https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-1024x434.webp 1024w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-300x127.webp 300w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-768x326.webp 768w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-1536x652.webp 1536w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-2048x869.webp 2048w, https:\/\/xbrele.com\/wp-content\/uploads\/2025\/12\/hanzhong-750kv-uhv-transmission-project-qinling-mountains-18x8.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"engineering-excellence-in-extreme-conditions\"><strong>L'excellence technique dans des conditions extr\u00eames<\/strong><\/h4>\n\n\n\n<p>La ligne de transport de 459 km est un exploit de l'ing\u00e9nierie moderne, puisqu'il s'agit de la premi\u00e8re ligne UHV de 750 kV en Chine \u00e0 traverser les montagnes Qinling du nord au sud.<sup><\/sup><sup><\/sup>. Le projet a d\u00fb faire face \u00e0 des d\u00e9fis sans pr\u00e9c\u00e9dent, qu'il a surmont\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Performances en haute altitude :<\/strong> La majeure partie du parcours se situant \u00e0 <strong>altitudes sup\u00e9rieures \u00e0 1 200 m\u00e8tres<\/strong>, le projet n\u00e9cessitait des \u00e9quipements con\u00e7us pour les environnements \u00e0 faible pression et \u00e0 l'air rar\u00e9fi\u00e9, un d\u00e9fi souvent relev\u00e9 par des sp\u00e9cialistes. <a href=\"https:\/\/xbrele.com\/fr\/high-altitude-switchgear-why-essential-modern-power-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\">appareillage de commutation haute altitude<\/a>.<\/li>\n\n\n\n<li><strong>R\u00e9sistance aux glaces \u00e9paisses :<\/strong> Il s'agit de la premi\u00e8re ligne de 750 kV du pays \u00e0 enjamber un <strong>Zone de glace \u00e9paisse de 40 mm<\/strong>, n\u00e9cessitant une m\u00e9canique robuste et <a href=\"https:\/\/xbrele.com\/fr\/switchgear-parts\/\" target=\"_blank\" rel=\"noreferrer noopener\">performance d'isolation<\/a>.<\/li>\n\n\n\n<li><strong>Pr\u00e9servation \u00e9cologique :<\/strong> D'une dur\u00e9e de 19 mois, le projet a \u00e9t\u00e9 r\u00e9alis\u00e9 dans le strict respect des principes \u00e9cologiques, garantissant ainsi la protection de l'\u00e9cosyst\u00e8me fragile du Qinling.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"strategic-impact-and-sustainability\"><strong>Impact strat\u00e9gique et durabilit\u00e9<\/strong><\/h4>\n\n\n\n<p>\u00c9l\u00e9ment cl\u00e9 du \u201c 14e plan quinquennal \u201d de la Chine, ce projet devrait permettre de r\u00e9pondre aux besoins r\u00e9gionaux en \u00e9lectricit\u00e9 pour les 15 prochaines ann\u00e9es tout en r\u00e9duisant les \u00e9missions de CO2 d'environ <strong>15 millions de tonnes par an<\/strong><sup><\/sup><sup><\/sup>. Cela met en \u00e9vidence la demande mondiale croissante en mati\u00e8re d'efficacit\u00e9 <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/distribution-transformer-guide\/\">transformateurs de distribution<\/a> et <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/power-distribution-transformers\/dry-type-transformer\/\">transformateurs \u00e0 sec<\/a> dans les conceptions de r\u00e9seaux durables<sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"xbrele-insights-from-uhv-technology-to-industrial-reliability\"><strong>XBRELE Insights : De la technologie UHV \u00e0 la fiabilit\u00e9 industrielle<\/strong><\/h4>\n\n\n\n<p>Le succ\u00e8s de ces projets UHV de grande envergure souligne la fiabilit\u00e9 de la cha\u00eene d'approvisionnement chinoise en \u00e9quipements \u00e9lectriques. \u00c0 <strong>XBRELE<\/strong>, nous appliquons les m\u00eames normes d'ing\u00e9nierie rigoureuses \u00e0 notre gamme de <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/vacuum-circuit-breaker\/\">Disjoncteurs \u00e0 vide moyenne tension<\/a> et <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/switchgear-component-manufacturer\/\">composants de commutation<\/a><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup>.<\/p>\n\n\n\n<p>Notre <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/vacuum-contactor\/\">contacteurs \u00e0 vide<\/a> et <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/switchgear-parts\/contact-box\/\">pi\u00e8ces isolantes en \u00e9poxy<\/a> sont con\u00e7us pour fonctionner dans les m\u00eames environnements exigeants que ceux du projet Hanzhong, notamment les sites miniers en haute altitude et les conditions m\u00e9t\u00e9orologiques extr\u00eames.<sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup><sup><\/sup>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Vous avez besoin de solutions MV\/HV fiables pour votre prochain projet ?<\/strong> <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/xbrele.com\/fr\/contact\/\">Contactez XBRELE Engineering<\/a>pour une assistance experte<sup><\/sup>.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"related-reading-and-selection-resources\">Lectures connexes et ressources de s\u00e9lection<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/xbrele.com\/fr\/products\/\">aper\u00e7u des produits moyenne tension<\/a> ? les contr\u00f4les pratiques, les limites et les notes de mise en service<\/li>\n<\/ul>\n\n\n\n<p><strong>R\u00e9f\u00e9rence de l'autorit\u00e9 :<\/strong> Pour les d\u00e9finitions standard et le contexte des tests, voir <a href=\"https:\/\/webstore.iec.ch\/publication\/6740\" target=\"_blank\" rel=\"noopener\">Page de publication de la CEI 62271-200<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Executive Summary On December 23, 2025, the Hanzhong 750kV Ultra-High Voltage (UHV) transmission and substation project was officially commissioned in Shaanxi, China. This landmark project marks the Shaanxi power grid&#8217;s entry into the UHV era, significantly enhancing regional energy reliability and supporting the transition to clean energy. Engineering Excellence in Extreme Conditions The 459km transmission [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2296,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-2295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/posts\/2295","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/comments?post=2295"}],"version-history":[{"count":5,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/posts\/2295\/revisions"}],"predecessor-version":[{"id":3652,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/posts\/2295\/revisions\/3652"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/media\/2296"}],"wp:attachment":[{"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/media?parent=2295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/categories?post=2295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xbrele.com\/fr\/wp-json\/wp\/v2\/tags?post=2295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}