{"id":2126,"date":"2025-05-22T07:56:00","date_gmt":"2025-05-22T07:56:00","guid":{"rendered":"https:\/\/ev-chargerstations.com\/?page_id=2126"},"modified":"2026-03-12T04:37:10","modified_gmt":"2026-03-12T04:37:10","slug":"glossaires-des-transformateurs","status":"publish","type":"page","link":"https:\/\/energypowertransformer.com\/fr\/transformer-glossaries\/","title":{"rendered":"Glossaire des transformateurs"},"content":{"rendered":"<div class=\"banner has-hover\" id=\"banner-2002972802\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-842395673\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<h2 data-start=\"330\" data-end=\"526\">\u00a0<\/h2>\n<p>\u00a0<\/p>\n<h2 style=\"text-align: left;\" data-start=\"330\" data-end=\"526\"><span style=\"color: #000000; font-size: 150%;\">Glossaire des transformateurs<\/span><\/h2>\n<p style=\"text-align: left;\" data-start=\"94\" data-end=\"217\"><span style=\"color: #000000; font-size: 150%;\">Explorez les termes cl\u00e9s et les d\u00e9finitions gr\u00e2ce aux glossaires r\u00e9dig\u00e9s par des experts de Transformateur d'\u00e9nergie.<\/span><\/p>\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-842395673 {\n  width: 100%;\n}\n#text-box-842395673 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-2002972802 {\n  padding-top: 600px;\n  background-color: rgb(255,255,255);\n}\n#banner-2002972802 .bg.bg-loaded {\n  background-image: url(https:\/\/energypowertransformer.com\/wp-content\/uploads\/2025\/05\/Chinas-Best-Power-Transformer-Manufacturer-and-Factory-Wholesale-Supplier-for-10kV\u2013500kV-1024x427.webp);\n}\n#banner-2002972802 .overlay {\n  background-color: rgba(255, 255, 255, 0.5);\n}\n<\/style>\n  <\/div>\n\n\n<div class=\"row\"  id=\"row-1846282690\">\n\n\t<div id=\"col-1231370984\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2 data-start=\"82\" data-end=\"117\"><span style=\"font-size: 150%;\"><strong data-start=\"85\" data-end=\"117\">Glossaires des transformateurs (A-Z)<\/strong><\/span><\/h2>\n<h3 data-start=\"119\" data-end=\"128\"><span style=\"font-size: 150%;\"><strong data-start=\"123\" data-end=\"128\">A<\/strong><\/span><\/h3>\n<ul data-start=\"129\" data-end=\"665\">\n<li data-start=\"129\" data-end=\"198\">\n<p data-start=\"131\" data-end=\"198\"><strong data-start=\"131\" data-end=\"160\">Courant alternatif (CA) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Un courant qui s'inverse p\u00e9riodiquement, contrairement au courant continu (CC) qui circule dans une seule direction.<\/span><\/p>\n<\/li>\n<li data-start=\"199\" data-end=\"254\">\n<p data-start=\"201\" data-end=\"254\"><strong data-start=\"201\" data-end=\"216\">Alternateur :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Une machine tournante qui g\u00e9n\u00e8re un courant alternatif (CA).<\/span><\/p>\n<\/li>\n<li data-start=\"255\" data-end=\"319\">\n<p data-start=\"257\" data-end=\"319\"><strong data-start=\"257\" data-end=\"281\">Temp\u00e9rature ambiante :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La temp\u00e9rature de l'environnement.<\/span><\/p>\n<\/li>\n<li data-start=\"320\" data-end=\"374\">\n<p data-start=\"322\" data-end=\"374\"><strong data-start=\"322\" data-end=\"334\">Amp\u00e8rem\u00e8tre :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Dispositif permettant de mesurer le courant \u00e9lectrique en amp\u00e8res.<\/span><\/p>\n<\/li>\n<li data-start=\"375\" data-end=\"437\">\n<p data-start=\"377\" data-end=\"437\"><strong data-start=\"377\" data-end=\"397\">Autotransformateur :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Transformateur dont un enroulement joue \u00e0 la fois le r\u00f4le de primaire et de secondaire.<\/span><\/p>\n<\/li>\n<li data-start=\"438\" data-end=\"502\">\n<p data-start=\"440\" data-end=\"502\"><strong data-start=\"440\" data-end=\"462\">Inducteur \u00e0 air comprim\u00e9 :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Inducteur utilisant l'air (ou le vide) comme noyau magn\u00e9tique.<\/span><\/p>\n<\/li>\n<li data-start=\"503\" data-end=\"558\">\n<p data-start=\"505\" data-end=\"558\"><strong data-start=\"505\" data-end=\"518\">Ampacit\u00e9 :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La quantit\u00e9 maximale de courant \u00e9lectrique qu'un conducteur ou un dispositif peut supporter avant de subir une d\u00e9t\u00e9rioration imm\u00e9diate ou progressive.<\/span><\/p>\n<\/li>\n<li data-start=\"559\" data-end=\"665\">\n<p data-start=\"561\" data-end=\"665\"><strong data-start=\"561\" data-end=\"586\">Bobine de suppression d'arc :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Dispositif utilis\u00e9 pour supprimer les arcs \u00e9lectriques.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"667\" data-end=\"676\"><span style=\"font-size: 150%;\"><strong data-start=\"671\" data-end=\"676\">B<\/strong><\/span><\/h3>\n<ul data-start=\"677\" data-end=\"1098\">\n<li data-start=\"677\" data-end=\"731\">\n<p data-start=\"679\" data-end=\"731\"><strong data-start=\"679\" data-end=\"691\">Douille :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Composant isolant permettant \u00e0 un conducteur de traverser une enceinte mise \u00e0 la terre.<\/span><\/p>\n<\/li>\n<li data-start=\"732\" data-end=\"801\">\n<p data-start=\"734\" data-end=\"801\"><strong data-start=\"734\" data-end=\"761\">Transformateur Buck-Boost :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Utilis\u00e9 pour les petits ajustements de tension dans les syst\u00e8mes d'\u00e9clairage et de contr\u00f4le.<\/span><\/p>\n<\/li>\n<li data-start=\"802\" data-end=\"866\">\n<p data-start=\"804\" data-end=\"866\"><strong data-start=\"804\" data-end=\"826\">Tension de rupture :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Tension \u00e0 laquelle l'isolation se rompt et devient conductrice.<\/span><\/p>\n<\/li>\n<li data-start=\"867\" data-end=\"942\">\n<p data-start=\"869\" data-end=\"942\"><strong data-start=\"869\" data-end=\"902\">BIL (Basic Insulation Level) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La tension maximale que les \u00e9quipements \u00e9lectriques peuvent supporter sans tomber en panne.<\/span><\/p>\n<\/li>\n<li data-start=\"943\" data-end=\"997\">\n<p data-start=\"945\" data-end=\"997\"><strong data-start=\"945\" data-end=\"957\">Banque :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Connexion de deux ou plusieurs transformateurs pour qu'ils fonctionnent comme une seule unit\u00e9.<\/span><\/p>\n<\/li>\n<li data-start=\"998\" data-end=\"1098\">\n<p data-start=\"1000\" data-end=\"1098\"><strong data-start=\"1000\" data-end=\"1019\">Relais Buchholz :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Relais \u00e0 gaz utilis\u00e9 pour la protection des transformateurs \u00e0 bain d'huile.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1100\" data-end=\"1109\"><span style=\"font-size: 150%;\"><strong data-start=\"1104\" data-end=\"1109\">C<\/strong><\/span><\/h3>\n<ul data-start=\"1110\" data-end=\"1626\">\n<li data-start=\"1110\" data-end=\"1172\">\n<p data-start=\"1112\" data-end=\"1172\"><strong data-start=\"1112\" data-end=\"1132\">Diagramme de circuit :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Sch\u00e9ma repr\u00e9sentant les connexions \u00e9lectriques \u00e0 l'aide de symboles standard.<\/span><\/p>\n<\/li>\n<li data-start=\"1173\" data-end=\"1230\">\n<p data-start=\"1175\" data-end=\"1230\"><strong data-start=\"1175\" data-end=\"1190\">Conduction :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Transfert d'\u00e9nergie (\u00e9lectrique ou thermique) \u00e0 travers un conducteur.<\/span><\/p>\n<\/li>\n<li data-start=\"1231\" data-end=\"1287\">\n<p data-start=\"1233\" data-end=\"1287\"><strong data-start=\"1233\" data-end=\"1247\">Contacteur :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Un grand relais utilis\u00e9 pour contr\u00f4ler les circuits d'alimentation.<\/span><\/p>\n<\/li>\n<li data-start=\"1288\" data-end=\"1342\">\n<p data-start=\"1290\" data-end=\"1342\"><strong data-start=\"1290\" data-end=\"1302\">Refroidissement :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Le processus de dissipation de la chaleur d'un transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"1343\" data-end=\"1409\">\n<p data-start=\"1345\" data-end=\"1409\"><strong data-start=\"1345\" data-end=\"1369\">Pertes de cuivre (I\u00b2R) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Pertes de chaleur dues au passage du courant \u00e0 travers la r\u00e9sistance du bobinage.<\/span><\/p>\n<\/li>\n<li data-start=\"1410\" data-end=\"1465\">\n<p data-start=\"1412\" data-end=\"1465\"><strong data-start=\"1412\" data-end=\"1425\">Accouplement :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Transfert d'\u00e9nergie entre circuits, souvent par l'interm\u00e9diaire de champs magn\u00e9tiques.<\/span><\/p>\n<\/li>\n<li data-start=\"1466\" data-end=\"1528\">\n<p data-start=\"1468\" data-end=\"1528\"><strong data-start=\"1468\" data-end=\"1488\">Saturation du noyau :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Situation dans laquelle une augmentation du courant ne se traduit pas par une augmentation du flux magn\u00e9tique.<\/span><\/p>\n<\/li>\n<li data-start=\"1529\" data-end=\"1626\">\n<p data-start=\"1531\" data-end=\"1626\"><strong data-start=\"1531\" data-end=\"1547\">Capacit\u00e9 :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Capacit\u00e9 d'un syst\u00e8me \u00e0 stocker une charge \u00e9lectrique.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1628\" data-end=\"1637\"><span style=\"font-size: 150%;\"><strong data-start=\"1632\" data-end=\"1637\">D<\/strong><\/span><\/h3>\n<ul data-start=\"1638\" data-end=\"2051\">\n<li data-start=\"1638\" data-end=\"1704\">\n<p data-start=\"1640\" data-end=\"1704\"><strong data-start=\"1640\" data-end=\"1664\">Courant continu (CC) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Courant \u00e9lectrique circulant dans une seule direction.<\/span><\/p>\n<\/li>\n<li data-start=\"1705\" data-end=\"1762\">\n<p data-start=\"1707\" data-end=\"1762\"><strong data-start=\"1707\" data-end=\"1722\">Di\u00e9lectrique :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Mat\u00e9riau isolant entre les conducteurs d'un condensateur ou d'un transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"1763\" data-end=\"1834\">\n<p data-start=\"1765\" data-end=\"1834\"><strong data-start=\"1765\" data-end=\"1794\">Transformateur de distribution :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">R\u00e9duit la tension pour une utilisation r\u00e9sidentielle ou commerciale.<\/span><\/p>\n<\/li>\n<li data-start=\"1835\" data-end=\"1898\">\n<p data-start=\"1837\" data-end=\"1898\"><strong data-start=\"1837\" data-end=\"1858\">Delta Connection :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">M\u00e9thode de connexion de trois enroulements de transformateur dans une configuration triangulaire.<\/span><\/p>\n<\/li>\n<li data-start=\"1899\" data-end=\"1954\">\n<p data-start=\"1901\" data-end=\"1954\"><strong data-start=\"1901\" data-end=\"1914\">D\u00e9saccord :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">R\u00e9glage d'un circuit pour \u00e9viter la r\u00e9sonance \u00e0 une fr\u00e9quence particuli\u00e8re.<\/span><\/p>\n<\/li>\n<li data-start=\"1955\" data-end=\"2051\">\n<p data-start=\"1957\" data-end=\"2051\"><strong data-start=\"1957\" data-end=\"1972\">Cycle d'utilisation :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Le rapport entre le temps de fonctionnement et le temps total d'un cycle r\u00e9p\u00e9titif.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2053\" data-end=\"2062\"><span style=\"font-size: 150%;\"><strong data-start=\"2057\" data-end=\"2062\">E<\/strong><\/span><\/h3>\n<ul data-start=\"2063\" data-end=\"2500\">\n<li data-start=\"2063\" data-end=\"2120\">\n<p data-start=\"2065\" data-end=\"2120\"><strong data-start=\"2065\" data-end=\"2080\">Efficacit\u00e9 :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Rapport entre la puissance de sortie et la puissance d'entr\u00e9e, exprim\u00e9 en pourcentage.<\/span><\/p>\n<\/li>\n<li data-start=\"2121\" data-end=\"2189\">\n<p data-start=\"2123\" data-end=\"2189\"><strong data-start=\"2123\" data-end=\"2149\">Isolation \u00e9lectrique :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Mat\u00e9riau emp\u00eachant le flux de courant ind\u00e9sirable.<\/span><\/p>\n<\/li>\n<li data-start=\"2190\" data-end=\"2262\">\n<p data-start=\"2192\" data-end=\"2262\"><strong data-start=\"2192\" data-end=\"2222\">Induction \u00e9lectromagn\u00e9tique :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">G\u00e9n\u00e9ration de tension par modification du champ magn\u00e9tique.<\/span><\/p>\n<\/li>\n<li data-start=\"2263\" data-end=\"2326\">\n<p data-start=\"2265\" data-end=\"2326\"><strong data-start=\"2265\" data-end=\"2286\">Un courant passionnant :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Le courant n\u00e9cessaire pour alimenter le noyau du transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"2327\" data-end=\"2396\">\n<p data-start=\"2329\" data-end=\"2396\"><strong data-start=\"2329\" data-end=\"2354\">Bouclier \u00e9lectrostatique :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Un conducteur mis \u00e0 la terre plac\u00e9 entre les enroulements pour r\u00e9duire le couplage capacitif.<\/span><\/p>\n<\/li>\n<li data-start=\"2397\" data-end=\"2500\">\n<p data-start=\"2399\" data-end=\"2500\"><strong data-start=\"2399\" data-end=\"2417\">Courants de Foucault :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Courants circulants induits dans les conducteurs par un champ magn\u00e9tique changeant.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2502\" data-end=\"2511\"><span style=\"font-size: 150%;\"><strong data-start=\"2506\" data-end=\"2511\">F<\/strong><\/span><\/h3>\n<ul data-start=\"2512\" data-end=\"2917\">\n<li data-start=\"2512\" data-end=\"2576\">\n<p data-start=\"2514\" data-end=\"2576\"><strong data-start=\"2514\" data-end=\"2534\">Flux (magn\u00e9tique) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Lignes de champ magn\u00e9tique g\u00e9n\u00e9r\u00e9es dans le noyau d'un transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"2577\" data-end=\"2635\">\n<p data-start=\"2579\" data-end=\"2635\"><strong data-start=\"2579\" data-end=\"2593\">Fr\u00e9quence :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Nombre de cycles de courant alternatif par seconde, mesur\u00e9 en hertz (Hz).<\/span><\/p>\n<\/li>\n<li data-start=\"2636\" data-end=\"2689\">\n<p data-start=\"2638\" data-end=\"2689\"><strong data-start=\"2638\" data-end=\"2647\">Fusible :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Dispositif de s\u00e9curit\u00e9 qui fond sous l'effet d'un courant excessif pour couper le circuit.<\/span><\/p>\n<\/li>\n<li data-start=\"2690\" data-end=\"2752\">\n<p data-start=\"2692\" data-end=\"2752\"><strong data-start=\"2692\" data-end=\"2710\">Loi de Faraday :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Principe selon lequel une variation du champ magn\u00e9tique peut induire une force \u00e9lectromotrice (CEM).<\/span><\/p>\n<\/li>\n<li data-start=\"2753\" data-end=\"2814\">\n<p data-start=\"2755\" data-end=\"2814\"><strong data-start=\"2755\" data-end=\"2772\">Noyau de ferrite :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Type de noyau magn\u00e9tique en ferrite, utilis\u00e9 dans les transformateurs \u00e0 haute fr\u00e9quence.<\/span><\/p>\n<\/li>\n<li data-start=\"2815\" data-end=\"2917\">\n<p data-start=\"2817\" data-end=\"2917\"><strong data-start=\"2817\" data-end=\"2834\">Fuite de flux :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Flux magn\u00e9tique qui ne suit pas le chemin pr\u00e9vu dans un circuit magn\u00e9tique.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2919\" data-end=\"2928\"><span style=\"font-size: 150%;\"><strong data-start=\"2923\" data-end=\"2928\">G<\/strong><\/span><\/h3>\n<ul data-start=\"2929\" data-end=\"3333\">\n<li data-start=\"2929\" data-end=\"2998\">\n<p data-start=\"2931\" data-end=\"2998\"><strong data-start=\"2931\" data-end=\"2956\">Mise \u00e0 la terre (Earthing) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Connecter les composants \u00e0 la terre pour plus de s\u00e9curit\u00e9.<\/span><\/p>\n<\/li>\n<li data-start=\"2999\" data-end=\"3060\">\n<p data-start=\"3001\" data-end=\"3060\"><strong data-start=\"3001\" data-end=\"3018\">Anneau de classement :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Anneau m\u00e9tallique utilis\u00e9 sur les bagues pour g\u00e9rer les champs \u00e9lectriques.<\/span><\/p>\n<\/li>\n<li data-start=\"3061\" data-end=\"3115\">\n<p data-start=\"3063\" data-end=\"3115\"><strong data-start=\"3063\" data-end=\"3073\">Gauss :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unit\u00e9 de densit\u00e9 de flux magn\u00e9tique.<\/span><\/p>\n<\/li>\n<li data-start=\"3116\" data-end=\"3173\">\n<p data-start=\"3118\" data-end=\"3173\"><strong data-start=\"3118\" data-end=\"3131\">Perte d'espace :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Pertes dues \u00e0 la pr\u00e9sence d'espaces d'air sur le trajet magn\u00e9tique.<\/span><\/p>\n<\/li>\n<li data-start=\"3174\" data-end=\"3230\">\n<p data-start=\"3176\" data-end=\"3230\"><strong data-start=\"3176\" data-end=\"3188\">Gazage :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Le d\u00e9gagement de gaz \u00e0 l'int\u00e9rieur de l'huile de transformateur en raison de la d\u00e9composition.<\/span><\/p>\n<\/li>\n<li data-start=\"3231\" data-end=\"3333\">\n<p data-start=\"3233\" data-end=\"3333\"><strong data-start=\"3233\" data-end=\"3250\">D\u00e9faut \u00e0 la terre :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Connexion involontaire entre un circuit \u00e9lectrique et la terre.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3335\" data-end=\"3344\"><span style=\"font-size: 150%;\"><strong data-start=\"3339\" data-end=\"3344\">H<\/strong><\/span><\/h3>\n<ul data-start=\"3345\" data-end=\"3790\">\n<li data-start=\"3345\" data-end=\"3403\">\n<p data-start=\"3347\" data-end=\"3403\"><strong data-start=\"3347\" data-end=\"3361\">Harmoniques :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Distorsions de tension\/courant \u00e0 des multiples de la fr\u00e9quence de base.<\/span><\/p>\n<\/li>\n<li data-start=\"3404\" data-end=\"3470\">\n<p data-start=\"3406\" data-end=\"3470\"><strong data-start=\"3406\" data-end=\"3428\">HV (haute tension) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Les niveaux de tension sont g\u00e9n\u00e9ralement sup\u00e9rieurs \u00e0 1 kV.<\/span><\/p>\n<\/li>\n<li data-start=\"3471\" data-end=\"3533\">\n<p data-start=\"3473\" data-end=\"3533\"><strong data-start=\"3473\" data-end=\"3491\">Essai de fonctionnement de la chaleur :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Un test mesurant l'augmentation de la temp\u00e9rature du transformateur sous charge.<\/span><\/p>\n<\/li>\n<li data-start=\"3534\" data-end=\"3598\">\n<p data-start=\"3536\" data-end=\"3598\"><strong data-start=\"3536\" data-end=\"3556\">Perte d'hyst\u00e9r\u00e9sis :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Perte d'\u00e9nergie due au d\u00e9calage entre l'intensit\u00e9 du champ magn\u00e9tique et l'aimantation.<\/span><\/p>\n<\/li>\n<li data-start=\"3599\" data-end=\"3668\">\n<p data-start=\"3601\" data-end=\"3668\"><strong data-start=\"3601\" data-end=\"3626\">Temp\u00e9rature du point chaud :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La temp\u00e9rature la plus \u00e9lev\u00e9e dans l'enroulement du transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"3669\" data-end=\"3790\">\n<p data-start=\"3671\" data-end=\"3790\"><strong data-start=\"3671\" data-end=\"3707\">Transformateur herm\u00e9tiquement scell\u00e9 :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Un transformateur scell\u00e9 pour \u00e9viter les infiltrations d'humidit\u00e9.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3792\" data-end=\"3801\"><span style=\"font-size: 150%;\"><strong data-start=\"3796\" data-end=\"3801\">I<\/strong><\/span><\/h3>\n<ul data-start=\"3802\" data-end=\"4239\">\n<li data-start=\"3802\" data-end=\"3860\">\n<p data-start=\"3804\" data-end=\"3860\"><strong data-start=\"3804\" data-end=\"3818\">Imp\u00e9dance :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">R\u00e9sistance au courant alternatif, comprenant \u00e0 la fois la r\u00e9sistance et la r\u00e9actance.<\/span><\/p>\n<\/li>\n<li data-start=\"3861\" data-end=\"3924\">\n<p data-start=\"3863\" data-end=\"3924\"><strong data-start=\"3863\" data-end=\"3882\">Courant d'appel :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Surcharge de courant lors de la premi\u00e8re mise sous tension d'un transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"3925\" data-end=\"3995\">\n<p data-start=\"3927\" data-end=\"3995\"><strong data-start=\"3927\" data-end=\"3953\">R\u00e9sistance de l'isolation :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">R\u00e9sistance offerte par le mat\u00e9riau isolant au passage du courant.<\/span><\/p>\n<\/li>\n<li data-start=\"3996\" data-end=\"4067\">\n<p data-start=\"3998\" data-end=\"4067\"><strong data-start=\"3998\" data-end=\"4025\">Transformateur d'instrument :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Utilis\u00e9 pour mesurer la tension ou le courant sans se connecter directement aux lignes \u00e0 haute tension.<\/span><\/p>\n<\/li>\n<li data-start=\"4068\" data-end=\"4138\">\n<p data-start=\"4070\" data-end=\"4138\"><strong data-start=\"4070\" data-end=\"4096\">Transformateur d'isolation :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Assure l'isolation \u00e9lectrique entre ses enroulements primaire et secondaire.<\/span><\/p>\n<\/li>\n<li data-start=\"4139\" data-end=\"4239\">\n<p data-start=\"4141\" data-end=\"4239\"><strong data-start=\"4141\" data-end=\"4156\">Inductance :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Propri\u00e9t\u00e9 d'un conducteur par laquelle une variation de courant induit une force \u00e9lectromotrice.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4241\" data-end=\"4250\"><span style=\"font-size: 150%;\"><strong data-start=\"4245\" data-end=\"4250\">J<\/strong><\/span><\/h3>\n<ul data-start=\"4251\" data-end=\"4659\">\n<li data-start=\"4251\" data-end=\"4312\">\n<p data-start=\"4253\" data-end=\"4312\"><strong data-start=\"4253\" data-end=\"4270\">Effet Joule :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Chaleur produite par un courant \u00e9lectrique dans un conducteur.<\/span><\/p>\n<\/li>\n<li data-start=\"4313\" data-end=\"4374\">\n<p data-start=\"4315\" data-end=\"4374\"><strong data-start=\"4315\" data-end=\"4332\">C\u00e2ble de liaison :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">C\u00e2ble temporaire utilis\u00e9 pour les connexions \u00e9lectriques.<\/span><\/p>\n<\/li>\n<li data-start=\"4375\" data-end=\"4444\">\n<p data-start=\"4377\" data-end=\"4444\"><strong data-start=\"4377\" data-end=\"4402\">Temp\u00e9rature de jonction :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La temp\u00e9rature au point de rencontre de diff\u00e9rents mat\u00e9riaux dans un dispositif.<\/span><\/p>\n<\/li>\n<li data-start=\"4445\" data-end=\"4500\">\n<p data-start=\"4447\" data-end=\"4500\"><strong data-start=\"4447\" data-end=\"4458\">Veste :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">L'enveloppe protectrice ext\u00e9rieure d'un c\u00e2ble ou d'un transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"4501\" data-end=\"4556\">\n<p data-start=\"4503\" data-end=\"4556\"><strong data-start=\"4503\" data-end=\"4514\">Gigue :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Petites variations rapides d'une forme d'onde r\u00e9sultant de fluctuations du signal.<\/span><\/p>\n<\/li>\n<li data-start=\"4557\" data-end=\"4659\">\n<p data-start=\"4559\" data-end=\"4659\"><strong data-start=\"4559\" data-end=\"4576\">Bo\u00eete de jonction :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Bo\u00eetier abritant les connexions \u00e9lectriques.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4661\" data-end=\"4670\"><span style=\"font-size: 150%;\"><strong data-start=\"4665\" data-end=\"4670\">K<\/strong><\/span><\/h3>\n<ul data-start=\"4671\" data-end=\"5092\">\n<li data-start=\"4671\" data-end=\"4742\">\n<p data-start=\"4673\" data-end=\"4742\"><strong data-start=\"4673\" data-end=\"4700\">kVA (kilovolt-amp\u00e8res) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unit\u00e9 de puissance apparente dans un transformateur.<\/span><\/p>\n<\/li>\n<li data-start=\"4743\" data-end=\"4800\">\n<p data-start=\"4745\" data-end=\"4800\"><strong data-start=\"4745\" data-end=\"4758\">K-Factor :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Indique la capacit\u00e9 d'un transformateur \u00e0 g\u00e9rer des charges non lin\u00e9aires.<\/span><\/p>\n<\/li>\n<li data-start=\"4801\" data-end=\"4868\">\n<p data-start=\"4803\" data-end=\"4868\"><strong data-start=\"4803\" data-end=\"4826\">Tension du point de genou :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Tension \u00e0 laquelle le noyau d'un transformateur commence \u00e0 saturer.<\/span><\/p>\n<\/li>\n<li data-start=\"4869\" data-end=\"4931\">\n<p data-start=\"4871\" data-end=\"4931\"><strong data-start=\"4871\" data-end=\"4889\">Kilowatt (kW) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unit\u00e9 de puissance r\u00e9elle.<\/span><\/p>\n<\/li>\n<li data-start=\"4932\" data-end=\"4991\">\n<p data-start=\"4934\" data-end=\"4991\"><strong data-start=\"4934\" data-end=\"4949\">Point de genou :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Point de la courbe de magn\u00e9tisation o\u00f9 le noyau commence \u00e0 saturer.<\/span><\/p>\n<\/li>\n<li data-start=\"4992\" data-end=\"5092\">\n<p data-start=\"4994\" data-end=\"5092\"><strong data-start=\"4994\" data-end=\"5009\">Valeur KVA :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La puissance apparente maximale qu'un transformateur peut supporter.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5094\" data-end=\"5103\"><span style=\"font-size: 150%;\"><strong data-start=\"5098\" data-end=\"5103\">L<\/strong><\/span><\/h3>\n<ul data-start=\"5104\" data-end=\"5527\">\n<li data-start=\"5104\" data-end=\"5162\">\n<p data-start=\"5106\" data-end=\"5162\"><strong data-start=\"5106\" data-end=\"5120\">Perte de charge :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Perte de puissance lors de l'alimentation de la charge en raison de la r\u00e9sistance des enroulements.<\/span><\/p>\n<\/li>\n<li data-start=\"5163\" data-end=\"5230\">\n<p data-start=\"5165\" data-end=\"5230\"><strong data-start=\"5165\" data-end=\"5188\">Parafoudre :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Prot\u00e8ge le transformateur contre les surtensions provoqu\u00e9es par la foudre.<\/span><\/p>\n<\/li>\n<li data-start=\"5231\" data-end=\"5297\">\n<p data-start=\"5233\" data-end=\"5297\"><strong data-start=\"5233\" data-end=\"5255\">R\u00e9actance de fuite :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">R\u00e9actance due \u00e0 un flux de fuite ne reliant pas les enroulements primaire et secondaire.<\/span><\/p>\n<\/li>\n<li data-start=\"5298\" data-end=\"5359\">\n<p data-start=\"5300\" data-end=\"5359\"><strong data-start=\"5300\" data-end=\"5317\">Tension de ligne :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Tension mesur\u00e9e entre deux lignes dans un syst\u00e8me triphas\u00e9.<\/span><\/p>\n<\/li>\n<li data-start=\"5360\" data-end=\"5425\">\n<p data-start=\"5362\" data-end=\"5425\"><strong data-start=\"5362\" data-end=\"5383\">Charger le changeur de bande :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Un dispositif qui ajuste la tension du transformateur dans des conditions de charge.<\/span><\/p>\n<\/li>\n<li data-start=\"5426\" data-end=\"5527\">\n<p data-start=\"5428\" data-end=\"5527\"><strong data-start=\"5428\" data-end=\"5444\">Laminations :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Feuilles minces d'acier \u00e9lectrique utilis\u00e9es pour construire le noyau du transformateur.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5529\" data-end=\"5538\"><span style=\"font-size: 150%;\"><strong data-start=\"5533\" data-end=\"5538\">M<\/strong><\/span><\/h3>\n<ul data-start=\"5539\" data-end=\"5985\">\n<li data-start=\"5539\" data-end=\"5607\">\n<p data-start=\"5541\" data-end=\"5607\"><strong data-start=\"5541\" data-end=\"5565\">Courant de magn\u00e9tisation :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Courant n\u00e9cessaire pour alimenter le noyau magn\u00e9tique.<\/span><\/p>\n<\/li>\n<li data-start=\"5608\" data-end=\"5668\">\n<p data-start=\"5610\" data-end=\"5668\"><strong data-start=\"5610\" data-end=\"5626\">Huile min\u00e9rale :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Huile utilis\u00e9e dans les transformateurs pour l'isolation et le refroidissement.<\/span><\/p>\n<\/li>\n<li data-start=\"5669\" data-end=\"5740\">\n<p data-start=\"5671\" data-end=\"5740\"><strong data-start=\"5671\" data-end=\"5698\">MVA (M\u00e9gavolt-Amp\u00e8res) :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Unit\u00e9 de puissance apparente pour les grands transformateurs.<\/span><\/p>\n<\/li>\n<li data-start=\"5741\" data-end=\"5807\">\n<p data-start=\"5743\" data-end=\"5807\"><strong data-start=\"5743\" data-end=\"5765\">Inductance mutuelle :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">Capacit\u00e9 d'un inducteur \u00e0 induire une tension dans un autre inducteur situ\u00e9 \u00e0 proximit\u00e9.<\/span><\/p>\n<\/li>\n<li data-start=\"5808\" data-end=\"5878\">\n<p data-start=\"5810\" data-end=\"5878\"><strong data-start=\"5810\" data-end=\"5836\">Densit\u00e9 du flux magn\u00e9tique :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La quantit\u00e9 de flux magn\u00e9tique dans une zone donn\u00e9e.<\/span><\/p>\n<\/li>\n<li data-start=\"5879\" data-end=\"5985\">\n<p data-start=\"5881\" data-end=\"5985\"><strong data-start=\"5881\" data-end=\"5902\">Teneur en eau :<\/strong> <span class=\"relative -mx-px my-&#091;-0.2rem&#093; rounded px-px py-&#091;0.2rem&#093; transition-colors duration-100 ease-in-out\">La quantit\u00e9 d'eau pr\u00e9sente dans l'isolation ou l'huile du transformateur.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5987\" data-end=\"5996\"><span style=\"font-size: 150%;\"><strong data-start=\"5991\" data-end=\"5996\">N<\/strong><\/span><\/h3>\n<ul data-start=\"5997\" data-end=\"6488\">\n<li data-start=\"5997\" data-end=\"6072\">\n<p data-start=\"5999\" data-end=\"6072\"><strong data-start=\"5999\" data-end=\"6016\">Perte \u00e0 vide :<\/strong> Puissance consomm\u00e9e par un transformateur aliment\u00e9 \u00e0 vide.<\/p>\n<\/li>\n<li data-start=\"6073\" data-end=\"6159\">\n<p data-start=\"6075\" data-end=\"6159\"><strong data-start=\"6075\" data-end=\"6093\">Point neutre :<\/strong> Chemin de retour commun pour le courant \u00e9lectrique dans les syst\u00e8mes triphas\u00e9s.<\/p>\n<\/li>\n<li data-start=\"6160\" data-end=\"6248\">\n<p data-start=\"6162\" data-end=\"6248\"><strong data-start=\"6162\" data-end=\"6183\">Valeur nominale de la plaque signal\u00e9tique :<\/strong> Les limites de fonctionnement sp\u00e9cifi\u00e9es par le fabricant pour un transformateur.<\/p>\n<\/li>\n<li data-start=\"6249\" data-end=\"6320\">\n<p data-start=\"6251\" data-end=\"6320\"><strong data-start=\"6251\" data-end=\"6267\">Niveau sonore :<\/strong> Le son \u00e9mis par un transformateur pendant son fonctionnement.<\/p>\n<\/li>\n<li data-start=\"6321\" data-end=\"6387\">\n<p data-start=\"6323\" data-end=\"6387\"><strong data-start=\"6323\" data-end=\"6343\">Tension nominale :<\/strong> La tension de fonctionnement standard d'un syst\u00e8me.<\/p>\n<\/li>\n<li data-start=\"6388\" data-end=\"6488\">\n<p data-start=\"6390\" data-end=\"6488\"><strong data-start=\"6390\" data-end=\"6406\">NEMA Rating :<\/strong> Normes \u00e9tablies par la National Electrical Manufacturers Association pour les \u00e9quipements.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"108\" data-end=\"117\"><span style=\"font-size: 150%;\"><strong data-start=\"112\" data-end=\"117\">O<\/strong><\/span><\/h3>\n<ul data-start=\"118\" data-end=\"743\">\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"48\" data-end=\"76\">Transformateur immerg\u00e9 dans l'huile<\/strong>Type de transformateur de puissance dans lequel les enroulements et le noyau magn\u00e9tique sont enti\u00e8rement immerg\u00e9s dans une huile min\u00e9rale isolante. L'huile assure \u00e0 la fois l'isolation \u00e9lectrique et une dissipation efficace de la chaleur.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"272\" data-end=\"293\">Capacit\u00e9 de surcharge<\/strong>La capacit\u00e9 d'un transformateur \u00e0 fonctionner temporairement au-dessus de sa kVA nominale sans dommage, souvent d\u00e9finie pour des dur\u00e9es et des conditions ambiantes sp\u00e9cifiques.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"447\" data-end=\"468\">Test en circuit ouvert<\/strong>:Test g\u00e9n\u00e9ralement effectu\u00e9 sur le c\u00f4t\u00e9 basse tension d'un transformateur pour mesurer les pertes de noyau (fer) et le courant de magn\u00e9tisation dans des conditions de non-charge.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"621\" data-end=\"651\">OLTC (On-Load Tap Changer)<\/strong>:Un changeur de prise qui permet de r\u00e9guler la tension lorsque le transformateur est sous tension et sous charge, utilis\u00e9 dans les r\u00e9seaux et les applications industrielles n\u00e9cessitant un contr\u00f4le continu de la tension.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"832\" data-end=\"847\">Surtension<\/strong>:Situation dans laquelle la tension appliqu\u00e9e d\u00e9passe la limite de conception du transformateur, ce qui peut entra\u00eener une rupture de l'isolation ou d'autres d\u00e9faillances.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"993\" data-end=\"1018\">Alarme de surchauffe<\/strong>:Dispositif de protection qui alerte l'op\u00e9rateur lorsque la temp\u00e9rature interne d\u00e9passe des seuils pr\u00e9d\u00e9finis, ce qui permet d'\u00e9viter la surchauffe et les pannes.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1167\" data-end=\"1201\">Changeur de prise hors circuit (OCTC)<\/strong>:Dispositif manuel ou motoris\u00e9 qui ajuste les prises d'enroulement pour r\u00e9guler la tension, mais uniquement lorsque le transformateur est hors tension.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1335\" data-end=\"1370\">Indicateur de temp\u00e9rature d'huile (OTI)<\/strong>:Dispositif qui surveille et affiche la temp\u00e9rature sup\u00e9rieure de l'huile \u00e0 l'int\u00e9rieur d'un transformateur \u00e0 bain d'huile, souvent reli\u00e9 \u00e0 des alarmes ou \u00e0 des circuits de d\u00e9clenchement.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1514\" data-end=\"1533\">Jauge de niveau d'huile<\/strong>:Instrument qui affiche le niveau actuel de l'huile isolante \u00e0 l'int\u00e9rieur de la cuve du transformateur, essentiel pour l'entretien de routine et la d\u00e9tection des fuites.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1685\" data-end=\"1704\">Conservateur d'huile<\/strong>:Un r\u00e9servoir d'expansion mont\u00e9 au-dessus du r\u00e9servoir principal du transformateur, permettant la dilatation et la contraction thermique de l'huile isolante tout en minimisant l'exposition \u00e0 l'air et \u00e0 l'humidit\u00e9.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"1884\" data-end=\"1902\">Filtration de l'huile<\/strong>La purification de l'huile de transformateur en \u00e9liminant l'humidit\u00e9, les gaz et les particules afin de restaurer ses propri\u00e9t\u00e9s d'isolation et de refroidissement.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2042\" data-end=\"2066\">D\u00e9tecteur de fuite d'huile<\/strong>:Un capteur ou un syst\u00e8me d'indicateurs visuels qui identifie les pertes involontaires d'huile du r\u00e9servoir, signalant les d\u00e9faillances potentielles des joints ou des soudures.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2204\" data-end=\"2224\">Dur\u00e9e de vie op\u00e9rationnelle<\/strong>La dur\u00e9e de vie pr\u00e9vue d'un transformateur dans des conditions standard, g\u00e9n\u00e9ralement comprise entre 25 et 40 ans en fonction de la conception, de la charge et de l'entretien.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2380\" data-end=\"2406\">Protection contre les surintensit\u00e9s<\/strong>M\u00e9canisme de s\u00e9curit\u00e9 (comme les fusibles ou les disjoncteurs) con\u00e7u pour d\u00e9connecter le transformateur de la source en cas de niveaux de courant d\u00e9passant la limite de s\u00e9curit\u00e9.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\">\n<p data-start=\"48\" data-end=\"270\"><strong data-start=\"2575\" data-end=\"2597\">Valve d'\u00e9chantillonnage d'huile<\/strong>Valve install\u00e9e sur la cuve du transformateur pour extraire de petites quantit\u00e9s d'huile en vue d'analyses p\u00e9riodiques de la rigidit\u00e9 di\u00e9lectrique, de la teneur en eau et des gaz dissous.<\/p>\n<\/li>\n<li data-start=\"634\" data-end=\"743\"><strong data-start=\"25\" data-end=\"59\">ONAN (Oil Natural Air Natural)<\/strong>:<br data-start=\"60\" data-end=\"63\" \/>Un syst\u00e8me de refroidissement passif pour transformateurs o\u00f9 la chaleur est dissip\u00e9e par convection naturelle de l'huile isolante et de l'air ambiant, id\u00e9al pour des conditions de charge et d'environnement standard.<\/li>\n<li data-start=\"634\" data-end=\"743\"><strong data-start=\"237\" data-end=\"289\">Am\u00e9lioration optionnelle - ONAF (Huile Naturelle Air Forc\u00e9)<\/strong>:<br data-start=\"290\" data-end=\"293\" \/>Une version am\u00e9lior\u00e9e utilisant des ventilateurs \u00e0 air puls\u00e9 pour augmenter la capacit\u00e9 de refroidissement, adapt\u00e9e aux environnements \u00e0 forte charge ou \u00e0 haute temp\u00e9rature.<\/li>\n<\/ul>\n<h3 data-start=\"745\" data-end=\"754\"><span style=\"font-size: 150%;\"><strong data-start=\"749\" data-end=\"754\">P<\/strong><\/span><\/h3>\n<ul data-start=\"755\" data-end=\"1288\">\n<li data-start=\"755\" data-end=\"828\">\n<p data-start=\"757\" data-end=\"828\"><strong data-start=\"757\" data-end=\"777\">Enroulement primaire :<\/strong> L'enroulement d'entr\u00e9e est connect\u00e9 \u00e0 la source d'alimentation.<\/p>\n<\/li>\n<li data-start=\"829\" data-end=\"906\">\n<p data-start=\"831\" data-end=\"906\"><strong data-start=\"831\" data-end=\"848\">Facteur de puissance :<\/strong> Le rapport entre la puissance r\u00e9elle et la puissance apparente dans un circuit.<\/p>\n<\/li>\n<li data-start=\"907\" data-end=\"998\">\n<p data-start=\"909\" data-end=\"998\"><strong data-start=\"909\" data-end=\"931\">D\u00e9charge partielle :<\/strong> Rupture di\u00e9lectrique localis\u00e9e de l'isolation sous haute tension.<\/p>\n<\/li>\n<li data-start=\"999\" data-end=\"1103\">\n<p data-start=\"1001\" data-end=\"1103\"><strong data-start=\"1001\" data-end=\"1023\">Transformateur de puissance :<\/strong> Utilis\u00e9 dans les r\u00e9seaux de transmission pour transf\u00e9rer l'\u00e9nergie \u00e9lectrique \u00e0 haute tension.<\/p>\n<\/li>\n<li data-start=\"1104\" data-end=\"1192\">\n<p data-start=\"1106\" data-end=\"1192\"><strong data-start=\"1106\" data-end=\"1127\">Relais de protection :<\/strong> Dispositif qui d\u00e9clenche un disjoncteur en cas de d\u00e9faut.<\/p>\n<\/li>\n<li data-start=\"1193\" data-end=\"1288\">\n<p data-start=\"1195\" data-end=\"1288\"><strong data-start=\"1195\" data-end=\"1211\">D\u00e9placement de phase :<\/strong> Changement de l'angle de phase entre les tensions d'entr\u00e9e et de sortie dans les transformateurs.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1290\" data-end=\"1299\"><span style=\"font-size: 150%;\"><strong data-start=\"1294\" data-end=\"1299\">Q<\/strong><\/span><\/h3>\n<ul data-start=\"1300\" data-end=\"1760\">\n<li data-start=\"1300\" data-end=\"1401\">\n<p data-start=\"1302\" data-end=\"1401\"><strong data-start=\"1302\" data-end=\"1325\">Facteur de qualit\u00e9 (Q) :<\/strong> Mesure de l'efficacit\u00e9 des inducteurs et des condensateurs dans un circuit \u00e0 courant alternatif.<\/p>\n<\/li>\n<li data-start=\"1402\" data-end=\"1473\">\n<p data-start=\"1404\" data-end=\"1473\"><strong data-start=\"1404\" data-end=\"1418\">Trempe :<\/strong> La suppression ou l'extinction des arcs \u00e9lectriques.<\/p>\n<\/li>\n<li data-start=\"1474\" data-end=\"1572\">\n<p data-start=\"1476\" data-end=\"1572\"><strong data-start=\"1476\" data-end=\"1498\">Courant de repos :<\/strong> Le courant consomm\u00e9 par un transformateur ou un circuit lorsqu'il n'y a pas de charge.<\/p>\n<\/li>\n<li data-start=\"1573\" data-end=\"1656\">\n<p data-start=\"1575\" data-end=\"1656\"><strong data-start=\"1575\" data-end=\"1596\">D\u00e9connexion rapide :<\/strong> Connecteurs permettant une d\u00e9connexion rapide des circuits de puissance.<\/p>\n<\/li>\n<li data-start=\"1657\" data-end=\"1760\">\n<p data-start=\"1659\" data-end=\"1760\"><strong data-start=\"1659\" data-end=\"1688\">Convertisseur quasi-r\u00e9sonant :<\/strong> Type de convertisseur de puissance utilisant la r\u00e9sonance pour r\u00e9duire les pertes de commutation.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1762\" data-end=\"1771\"><span style=\"font-size: 150%;\"><strong data-start=\"1766\" data-end=\"1771\">R<\/strong><\/span><\/h3>\n<ul data-start=\"1772\" data-end=\"2290\">\n<li data-start=\"1772\" data-end=\"1845\">\n<p data-start=\"1774\" data-end=\"1845\"><strong data-start=\"1774\" data-end=\"1788\">R\u00e9actance :<\/strong> Opposition au courant alternatif caus\u00e9e par l'inductance et la capacit\u00e9.<\/p>\n<\/li>\n<li data-start=\"1846\" data-end=\"1934\">\n<p data-start=\"1848\" data-end=\"1934\"><strong data-start=\"1848\" data-end=\"1873\">R\u00e9gulation (tension) :<\/strong> La variation de la tension secondaire entre l'absence de charge et la pleine charge.<\/p>\n<\/li>\n<li data-start=\"1935\" data-end=\"2032\">\n<p data-start=\"1937\" data-end=\"2032\"><strong data-start=\"1937\" data-end=\"1956\">Capacit\u00e9 nominale :<\/strong> Puissance maximale qu'un transformateur peut fournir dans des conditions standard.<\/p>\n<\/li>\n<li data-start=\"2033\" data-end=\"2105\">\n<p data-start=\"2035\" data-end=\"2105\"><strong data-start=\"2035\" data-end=\"2048\">Radiateur :<\/strong> Composant utilis\u00e9 pour dissiper la chaleur de l'huile du transformateur.<\/p>\n<\/li>\n<li data-start=\"2106\" data-end=\"2190\">\n<p data-start=\"2108\" data-end=\"2190\"><strong data-start=\"2108\" data-end=\"2123\">R\u00e9sistance :<\/strong> Opposition \u00e0 la circulation du courant, provoquant une chute de tension et une perte de puissance.<\/p>\n<\/li>\n<li data-start=\"2191\" data-end=\"2290\">\n<p data-start=\"2193\" data-end=\"2290\"><strong data-start=\"2193\" data-end=\"2214\">Protection par relais :<\/strong> Syst\u00e8me utilis\u00e9 pour d\u00e9tecter les d\u00e9fauts des transformateurs et activer les dispositifs de protection.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2292\" data-end=\"2301\"><span style=\"font-size: 150%;\"><strong data-start=\"2296\" data-end=\"2301\">S<\/strong><\/span><\/h3>\n<ul data-start=\"2302\" data-end=\"2799\">\n<li data-start=\"2302\" data-end=\"2383\">\n<p data-start=\"2304\" data-end=\"2383\"><strong data-start=\"2304\" data-end=\"2326\">Enroulement secondaire :<\/strong> L'enroulement \u00e0 partir duquel l'\u00e9nergie est d\u00e9livr\u00e9e \u00e0 la charge.<\/p>\n<\/li>\n<li data-start=\"2384\" data-end=\"2465\">\n<p data-start=\"2386\" data-end=\"2465\"><strong data-start=\"2386\" data-end=\"2410\">Transformateur \u00e9l\u00e9vateur :<\/strong> Augmente la tension entre l'enroulement primaire et l'enroulement secondaire.<\/p>\n<\/li>\n<li data-start=\"2466\" data-end=\"2549\">\n<p data-start=\"2468\" data-end=\"2549\"><strong data-start=\"2468\" data-end=\"2494\">Transformateur abaisseur :<\/strong> Diminue la tension entre l'enroulement primaire et l'enroulement secondaire.<\/p>\n<\/li>\n<li data-start=\"2550\" data-end=\"2630\">\n<p data-start=\"2552\" data-end=\"2630\"><strong data-start=\"2552\" data-end=\"2567\">Perte errante :<\/strong> Pertes dues \u00e0 des fuites de flux dans la structure ou la cuve du transformateur.<\/p>\n<\/li>\n<li data-start=\"2631\" data-end=\"2714\">\n<p data-start=\"2633\" data-end=\"2714\"><strong data-start=\"2633\" data-end=\"2652\">Parafoudre :<\/strong> Dispositif de protection contre les surtensions ou la foudre.<\/p>\n<\/li>\n<li data-start=\"2715\" data-end=\"2799\">\n<p data-start=\"2717\" data-end=\"2799\"><strong data-start=\"2717\" data-end=\"2735\">Acier au silicium :<\/strong> Mat\u00e9riau magn\u00e9tique utilis\u00e9 dans les noyaux des transformateurs pour r\u00e9duire les pertes.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2801\" data-end=\"2810\"><span style=\"font-size: 150%;\"><strong data-start=\"2805\" data-end=\"2810\">T<\/strong><\/span><\/h3>\n<ul data-start=\"2811\" data-end=\"3352\">\n<li data-start=\"2811\" data-end=\"2902\">\n<p data-start=\"2813\" data-end=\"2902\"><strong data-start=\"2813\" data-end=\"2829\">Changeur de robinet :<\/strong> Dispositif permettant d'ajuster la tension de sortie d'un transformateur en modifiant le nombre de tours de l'enroulement.<\/p>\n<\/li>\n<li data-start=\"2903\" data-end=\"3002\">\n<p data-start=\"2905\" data-end=\"3002\"><strong data-start=\"2905\" data-end=\"2926\">Augmentation de la temp\u00e9rature :<\/strong> Augmentation de la temp\u00e9rature pendant le fonctionnement du transformateur au-dessus du niveau ambiant.<\/p>\n<\/li>\n<li data-start=\"3003\" data-end=\"3102\">\n<p data-start=\"3005\" data-end=\"3102\"><strong data-start=\"3005\" data-end=\"3033\">Transformateur triphas\u00e9 :<\/strong> Transformateur pour syst\u00e8mes d'alimentation triphas\u00e9s avec trois jeux d'enroulements.<\/p>\n<\/li>\n<li data-start=\"3103\" data-end=\"3195\">\n<p data-start=\"3105\" data-end=\"3195\"><strong data-start=\"3105\" data-end=\"3126\">Surcharge thermique :<\/strong> Condition lorsque la temp\u00e9rature d\u00e9passe les limites de s\u00e9curit\u00e9 en raison d'une surcharge.<\/p>\n<\/li>\n<li data-start=\"3196\" data-end=\"3261\">\n<p data-start=\"3198\" data-end=\"3261\"><strong data-start=\"3198\" data-end=\"3214\">Ratio de rotation :<\/strong> Rapport entre le nombre de tours de l'enroulement primaire et le nombre de tours de l'enroulement secondaire.<\/p>\n<\/li>\n<li data-start=\"3262\" data-end=\"3352\">\n<p data-start=\"3264\" data-end=\"3352\"><strong data-start=\"3264\" data-end=\"3289\">Transformateur toro\u00efdal :<\/strong> Transformateur en forme de beignet avec r\u00e9duction des fuites de flux magn\u00e9tique.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3354\" data-end=\"3363\"><span style=\"font-size: 150%;\"><strong data-start=\"3358\" data-end=\"3363\">U<\/strong><\/span><\/h3>\n<ul data-start=\"3364\" data-end=\"3939\">\n<li data-start=\"3364\" data-end=\"3474\">\n<p data-start=\"3366\" data-end=\"3474\"><strong data-start=\"3366\" data-end=\"3387\">Certification UL :<\/strong> Certification indiquant la conformit\u00e9 aux normes de s\u00e9curit\u00e9 des Laboratoires des assureurs (Underwriters Laboratories).<\/p>\n<\/li>\n<li data-start=\"3475\" data-end=\"3572\">\n<p data-start=\"3477\" data-end=\"3572\"><strong data-start=\"3477\" data-end=\"3494\">Sous-tension :<\/strong> Fonctionnement en dessous de la tension nominale, ce qui peut entra\u00eener une inefficacit\u00e9 ou une instabilit\u00e9.<\/p>\n<\/li>\n<li data-start=\"3573\" data-end=\"3645\">\n<p data-start=\"3575\" data-end=\"3645\"><strong data-start=\"3575\" data-end=\"3593\">Champ d'uniformes :<\/strong> Un champ magn\u00e9tique ou \u00e9lectrique uniform\u00e9ment r\u00e9parti.<\/p>\n<\/li>\n<li data-start=\"3646\" data-end=\"3743\">\n<p data-start=\"3648\" data-end=\"3743\"><strong data-start=\"3648\" data-end=\"3672\">Transformateur de service public :<\/strong> Transformateur utilis\u00e9 par les compagnies d'\u00e9lectricit\u00e9 pour distribuer l'\u00e9nergie \u00e9lectrique.<\/p>\n<\/li>\n<li data-start=\"3744\" data-end=\"3835\">\n<p data-start=\"3746\" data-end=\"3835\"><strong data-start=\"3746\" data-end=\"3766\">Charge non \u00e9quilibr\u00e9e :<\/strong> Lorsque les charges sur les trois phases d'un transformateur ne sont pas \u00e9gales.<\/p>\n<\/li>\n<li data-start=\"3836\" data-end=\"3939\">\n<p data-start=\"3838\" data-end=\"3939\"><strong data-start=\"3838\" data-end=\"3855\">Forme en U Noyau :<\/strong> La forme du noyau d'un transformateur est con\u00e7ue pour r\u00e9pondre \u00e0 des exigences sp\u00e9cifiques en mati\u00e8re d'espace ou de performances.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3941\" data-end=\"3950\"><span style=\"font-size: 150%;\"><strong data-start=\"3945\" data-end=\"3950\">V<\/strong><\/span><\/h3>\n<ul data-start=\"3951\" data-end=\"4498\">\n<li data-start=\"3951\" data-end=\"4050\">\n<p data-start=\"3953\" data-end=\"4050\"><strong data-start=\"3953\" data-end=\"3970\">Groupe Vecteur :<\/strong> Repr\u00e9sentation symbolique de la configuration des enroulements et du d\u00e9phasage.<\/p>\n<\/li>\n<li data-start=\"4051\" data-end=\"4148\">\n<p data-start=\"4053\" data-end=\"4148\"><strong data-start=\"4053\" data-end=\"4076\">R\u00e9gulation de la tension :<\/strong> Capacit\u00e9 \u00e0 maintenir une tension de sortie constante malgr\u00e9 une charge variable.<\/p>\n<\/li>\n<li data-start=\"4149\" data-end=\"4244\">\n<p data-start=\"4151\" data-end=\"4244\"><strong data-start=\"4151\" data-end=\"4169\">S\u00e9chage sous vide :<\/strong> Proc\u00e9d\u00e9 d'\u00e9limination de l'humidit\u00e9 de l'isolation des transformateurs en cours de fabrication.<\/p>\n<\/li>\n<li data-start=\"4245\" data-end=\"4322\">\n<p data-start=\"4247\" data-end=\"4322\"><strong data-start=\"4247\" data-end=\"4268\">Volt-Amp\u00e8re (VA) :<\/strong> Unit\u00e9 de puissance apparente utilis\u00e9e dans les valeurs nominales des transformateurs.<\/p>\n<\/li>\n<li data-start=\"4323\" data-end=\"4421\">\n<p data-start=\"4325\" data-end=\"4421\"><strong data-start=\"4325\" data-end=\"4364\">VPI (impr\u00e9gnation sous vide et pression) :<\/strong> M\u00e9thode d'am\u00e9lioration de l'isolation des transformateurs \u00e0 sec.<\/p>\n<\/li>\n<li data-start=\"4422\" data-end=\"4498\">\n<p data-start=\"4424\" data-end=\"4498\"><strong data-start=\"4424\" data-end=\"4440\">Prise de tension :<\/strong> Point de connexion sur un enroulement pour s\u00e9lectionner la tension de sortie.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"4500\" data-end=\"4509\"><span style=\"font-size: 150%;\"><strong data-start=\"4504\" data-end=\"4509\">W<\/strong><\/span><\/h3>\n<ul data-start=\"4510\" data-end=\"5041\">\n<li data-start=\"4510\" data-end=\"4581\">\n<p data-start=\"4512\" data-end=\"4581\"><strong data-start=\"4512\" data-end=\"4524\">Enroulement :<\/strong> Bobine conductrice dans un transformateur o\u00f9 la FEM est induite.<\/p>\n<\/li>\n<li data-start=\"4582\" data-end=\"4660\">\n<p data-start=\"4584\" data-end=\"4660\"><strong data-start=\"4584\" data-end=\"4598\">Perte de watts :<\/strong> Puissance totale perdue sous forme de chaleur en raison de la r\u00e9sistance et des pertes du noyau.<\/p>\n<\/li>\n<li data-start=\"4661\" data-end=\"4766\">\n<p data-start=\"4663\" data-end=\"4766\"><strong data-start=\"4663\" data-end=\"4689\">Connexion en \u00e9toile :<\/strong> Connexion triphas\u00e9e o\u00f9 chaque enroulement se raccorde \u00e0 un point neutre commun.<\/p>\n<\/li>\n<li data-start=\"4767\" data-end=\"4837\">\n<p data-start=\"4769\" data-end=\"4837\"><strong data-start=\"4769\" data-end=\"4783\">Wattm\u00e8tre :<\/strong> Instrument utilis\u00e9 pour mesurer la puissance r\u00e9elle d'un circuit.<\/p>\n<\/li>\n<li data-start=\"4838\" data-end=\"4939\">\n<p data-start=\"4840\" data-end=\"4939\"><strong data-start=\"4840\" data-end=\"4863\">R\u00e9sistance \u00e0 l'enroulement :<\/strong> La r\u00e9sistance des enroulements du transformateur affecte la chute de tension et les pertes.<\/p>\n<\/li>\n<li data-start=\"4940\" data-end=\"5041\">\n<p data-start=\"4942\" data-end=\"5041\"><strong data-start=\"4942\" data-end=\"4971\">Transformateur r\u00e9sistant aux intemp\u00e9ries :<\/strong> Con\u00e7u pour une utilisation en ext\u00e9rieur et prot\u00e9g\u00e9 des \u00e9l\u00e9ments environnementaux.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5043\" data-end=\"5052\"><span style=\"font-size: 150%;\"><strong data-start=\"5047\" data-end=\"5052\">X<\/strong><\/span><\/h3>\n<ul data-start=\"5053\" data-end=\"5524\">\n<li data-start=\"5053\" data-end=\"5129\">\n<p data-start=\"5055\" data-end=\"5129\"><strong data-start=\"5055\" data-end=\"5069\">Rapport X\/R :<\/strong> Rapport entre la r\u00e9actance et la r\u00e9sistance, utilis\u00e9 dans l'analyse des d\u00e9fauts.<\/p>\n<\/li>\n<li data-start=\"5130\" data-end=\"5213\">\n<p data-start=\"5132\" data-end=\"5213\"><strong data-start=\"5132\" data-end=\"5154\">Transformateur de rayons X :<\/strong> Transformateur haute tension utilis\u00e9 dans les appareils de radiologie m\u00e9dicale.<\/p>\n<\/li>\n<li data-start=\"5214\" data-end=\"5294\">\n<p data-start=\"5216\" data-end=\"5294\"><strong data-start=\"5216\" data-end=\"5234\">D\u00e9placement en phase X :<\/strong> D\u00e9phasage r\u00e9glable pour contr\u00f4ler le flux d'\u00e9nergie dans les r\u00e9seaux.<\/p>\n<\/li>\n<li data-start=\"5295\" data-end=\"5376\">\n<p data-start=\"5297\" data-end=\"5376\"><strong data-start=\"5297\" data-end=\"5321\">Enroulement en X :<\/strong> Une configuration unique dans la transmission \u00e0 haute tension.<\/p>\n<\/li>\n<li data-start=\"5377\" data-end=\"5455\">\n<p data-start=\"5379\" data-end=\"5455\"><strong data-start=\"5379\" data-end=\"5402\">Classe X Isolation :<\/strong> Classe de temp\u00e9rature pour les mat\u00e9riaux d'isolation.<\/p>\n<\/li>\n<li data-start=\"5456\" data-end=\"5524\">\n<p data-start=\"5458\" data-end=\"5524\"><strong data-start=\"5458\" data-end=\"5481\">Xenon Alimentation de l'\u00e9clair :<\/strong> Transformateur utilis\u00e9 dans les syst\u00e8mes d'\u00e9clairage au x\u00e9non.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"5526\" data-end=\"5535\"><span style=\"font-size: 150%;\"><strong data-start=\"5530\" data-end=\"5535\">Y<\/strong><\/span><\/h3>\n<ul data-start=\"5536\" data-end=\"6035\">\n<li data-start=\"5536\" data-end=\"5590\">\n<p data-start=\"5538\" data-end=\"5590\"><strong data-start=\"5538\" data-end=\"5555\">Connexion en Y :<\/strong> Autre terme pour connexion Wye.<\/p>\n<\/li>\n<li data-start=\"5591\" data-end=\"5662\">\n<p data-start=\"5593\" data-end=\"5662\"><strong data-start=\"5593\" data-end=\"5602\">Joug :<\/strong> La partie horizontale sup\u00e9rieure et inf\u00e9rieure du noyau d'un transformateur.<\/p>\n<\/li>\n<li data-start=\"5663\" data-end=\"5762\">\n<p data-start=\"5665\" data-end=\"5762\"><strong data-start=\"5665\" data-end=\"5694\">Isolants \u00e0 base d'yttrium :<\/strong> Isolants haute performance utilis\u00e9s dans la conception de transformateurs avanc\u00e9s.<\/p>\n<\/li>\n<li data-start=\"5763\" data-end=\"5861\">\n<p data-start=\"5765\" data-end=\"5861\"><strong data-start=\"5765\" data-end=\"5784\">Limite d'\u00e9lasticit\u00e9 :<\/strong> La contrainte maximale qu'un mat\u00e9riau peut supporter sans d\u00e9formation permanente.<\/p>\n<\/li>\n<li data-start=\"5862\" data-end=\"5951\">\n<p data-start=\"5864\" data-end=\"5951\"><strong data-start=\"5864\" data-end=\"5887\">Y-\u0394 Transformation :<\/strong> Conversion math\u00e9matique entre les configurations wye et delta.<\/p>\n<\/li>\n<li data-start=\"5952\" data-end=\"6035\">\n<p data-start=\"5954\" data-end=\"6035\"><strong data-start=\"5954\" data-end=\"5982\">Transformateur de contr\u00f4le de lacet :<\/strong> Utilis\u00e9 dans les \u00e9oliennes pour contr\u00f4ler la rotation de la nacelle.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"6037\" data-end=\"6046\"><span style=\"font-size: 150%;\"><strong data-start=\"6041\" data-end=\"6046\">Z<\/strong><\/span><\/h3>\n<ul data-start=\"6047\" data-end=\"6595\">\n<li data-start=\"6047\" data-end=\"6149\">\n<p data-start=\"6049\" data-end=\"6149\"><strong data-start=\"6049\" data-end=\"6075\">Courant de s\u00e9quence z\u00e9ro :<\/strong> Composante du courant dans les syst\u00e8mes non \u00e9quilibr\u00e9s affectant le neutre et la terre.<\/p>\n<\/li>\n<li data-start=\"6150\" data-end=\"6242\">\n<p data-start=\"6152\" data-end=\"6242\"><strong data-start=\"6152\" data-end=\"6175\">Transformateur en zigzag :<\/strong> Assure la mise \u00e0 la terre et r\u00e9duit les harmoniques dans les syst\u00e8mes triphas\u00e9s.<\/p>\n<\/li>\n<li data-start=\"6243\" data-end=\"6339\">\n<p data-start=\"6245\" data-end=\"6339\"><strong data-start=\"6245\" data-end=\"6269\">Arr\u00eateur \u00e0 l'oxyde de zinc :<\/strong> Parafoudre utilisant l'oxyde de zinc comme mat\u00e9riau de r\u00e9sistance non lin\u00e9aire.<\/p>\n<\/li>\n<li data-start=\"6340\" data-end=\"6411\">\n<p data-start=\"6342\" data-end=\"6411\"><strong data-start=\"6342\" data-end=\"6360\">Chauffage zonal :<\/strong> Chauffage in\u00e9gal dans les diff\u00e9rentes r\u00e9gions du transformateur.<\/p>\n<\/li>\n<li data-start=\"6412\" data-end=\"6502\">\n<p data-start=\"6414\" data-end=\"6502\"><strong data-start=\"6414\" data-end=\"6432\">Conception Z-Core :<\/strong> Une configuration de noyau pour des agencements de transformateurs compacts et efficaces.<\/p>\n<\/li>\n<li data-start=\"6503\" data-end=\"6595\">\n<p data-start=\"6505\" data-end=\"6595\"><strong data-start=\"6505\" data-end=\"6526\">Protection Zener :<\/strong> Protection contre les surtensions \u00e0 l'aide de diodes Zener dans les transformateurs de commande.<\/p>\n<\/li>\n<\/ul>\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f280-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"280\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/fr\/wp-json\/wp\/v2\/pages\/2126#wpcf7-f280-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Formulaire de contact\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/pages\/2126#wpcf7-f280-o1\">\n<fieldset 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