{"id":26586,"date":"2025-12-03T11:12:28","date_gmt":"2025-12-03T10:12:28","guid":{"rendered":"https:\/\/www.orteanext.com\/case-histories\/800-kva-multi-tap-autotransformer-for-electric-motor-test-bench\/"},"modified":"2025-12-15T10:52:14","modified_gmt":"2025-12-15T09:52:14","slug":"autotransformateur-a-prises-multiples-de-800-kva-pour-banc-dessai-de-moteurs-electriques","status":"publish","type":"case","link":"https:\/\/www.orteanext.com\/fr\/case-histories\/autotransformateur-a-prises-multiples-de-800-kva-pour-banc-dessai-de-moteurs-electriques\/","title":{"rendered":"AUTOTRANSFORMATEUR \u00c0 PRISES MULTIPLES DE 800 KVA POUR BANC D&rsquo;ESSAI DE MOTEURS \u00c9LECTRIQUES"},"content":{"rendered":"<h3>LE CLIENT<\/h3>\n<p>Un grand groupe multinational op\u00e9rant dans les secteurs de l&rsquo;\u00e9nergie et de l&rsquo;industrie.<\/p>\n<h3>LE BESOIN<\/h3>\n<p>Obtenir des tensions d&rsquo;essai pr\u00e9cises sur des moteurs aux sp\u00e9cifications diff\u00e9rentes afin de garantir la s\u00e9curit\u00e9, la stabilit\u00e9 et la fiabilit\u00e9 maximale du syst\u00e8me.<\/p>\n<p>Les principaux requis techniques \u00e9taient :<\/p>\n<ul>\n<li>Puissance nominale : 800 kVA<\/li>\n<li>Tension d&rsquo;entr\u00e9e : 400 V (1155 A)<\/li>\n<li>Sorties \u00e0 prises multiples : 440 V, 480 V, 600 V, 690 V<\/li>\n<li>Courant d&rsquo;enclenchement admissible : maximum 3 fois l&rsquo;intensit\u00e9 nominale (3\u00b7In)<\/li>\n<\/ul>\n<h3>NOTRE SOLUTION<\/h3>\n<p>La conception d&rsquo;un autotransformateur \u00e0 prises multiples pour bancs d&rsquo;essai moteurs pr\u00e9sente des contraintes sp\u00e9cifiques qui exigent des comp\u00e9tences \u00e9lectromagn\u00e9tiques avanc\u00e9es.<\/p>\n<p>Ortea a con\u00e7u et r\u00e9alis\u00e9 un autotransformateur \u00e0 prises multiples de 800 kVA destin\u00e9 \u00e0 un banc d&rsquo;essai moteurs, coupl\u00e9 \u00e0 un convertisseur de fr\u00e9quence \u00e0 60 Hz, en d\u00e9veloppant la solution \u00e0 travers un parcours de conception complet conforme \u00e0 la norme IEC 60076-11:2019 pour les transformateurs secs.<\/p>\n<p>La r\u00e9alisation a pr\u00e9vu des dispositions constructives sp\u00e9cifiques :<\/p>\n<ul>\n<li>G\u00e9om\u00e9tries de noyau optimis\u00e9es pour r\u00e9duire les flux de fuite<\/li>\n<li>Enroulements surdimensionn\u00e9s en section pour limiter l&rsquo;imp\u00e9dance<\/li>\n<li>Barres conductrices \u00e0 trajet \u00e0 faible r\u00e9sistance pour minimiser les pertes<\/li>\n<li>Syst\u00e8mes de refroidissement dimensionn\u00e9s pour des cycles d&rsquo;essai prolong\u00e9s<\/li>\n<\/ul>\n<p>Ce projet sur mesure d&rsquo;autotransformateur \u00e0 prises multiples a permis d&rsquo;obtenir une machine aux performances optimales :<\/p>\n<ul>\n<li>Rendement sup\u00e9rieur \u00e0 99 % \u00e0 pleine charge<\/li>\n<li>Courant d&rsquo;enclenchement contenu dans la limite de 3\u00b7In<\/li>\n<li>Pertes totales inf\u00e9rieures \u00e0 2 % de la puissance nominale<\/li>\n<li>Conformit\u00e9 aux classes climatiques E2 C2 F1 selon IEC 60076-11<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.orteanext.com\/fr\/transformateurs-et-reacteurs-bt\/autotransformateur-a-prises-multiples-800-kva-solution-sur-mesure-pour-bancs-dessai-moteurs\/\"><strong>D\u00e9couvrir l\u2019article associ\u00e9<\/strong><\/a><\/p>\n","protected":false},"featured_media":26519,"template":"","sector":[24303],"tech":[24319],"class_list":["post-26586","case","type-case","status-publish","has-post-thumbnail","hentry","sector-industrie","tech-transformateurs-racteurs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Autotransformateur \u00e0 prises multiples de 800 kVA pour banc d&#039;essai<\/title>\n<meta name=\"description\" content=\"Autotransformateur \u00e0 prises multiples pour banc d&#039;essai, coupl\u00e9 \u00e0 un convertisseur de fr\u00e9quence pour essais sur moteurs \u00e9lectriques.\" 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