{"id":2092,"date":"2025-08-26T08:42:42","date_gmt":"2025-08-26T08:42:42","guid":{"rendered":"https:\/\/www.ketetransformer.com\/?post_type=product&#038;p=2092"},"modified":"2025-09-26T07:49:56","modified_gmt":"2025-09-26T07:49:56","slug":"10kv-high-overload-oil-immersed-transformer","status":"publish","type":"product","link":"https:\/\/www.ketetransformer.com\/fr\/products\/10kv-high-overload-oil-immersed-transformer\/","title":{"rendered":"Transformateur \u00e0 huile de 10 kV \u00e0 haute capacit\u00e9 de surcharge, avec noyau en cuivre et conception \u00e0 faible niveau sonore"},"content":{"rendered":"<div data-elementor-type=\"product-post\" data-elementor-id=\"2092\" class=\"elementor elementor-2092\" data-elementor-post-type=\"product\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11e38e9 e-flex e-con-boxed e-con e-parent\" data-id=\"11e38e9\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3df9cea e-n-tabs-mobile elementor-widget elementor-widget-n-tabs\" data-id=\"3df9cea\" data-element_type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;start&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"64986346\" aria-label=\"Onglets. Ouvrez des \u00e9l\u00e9ments avec Entrer ou Espace, fermez-les avec Echape et naviguez \u00e0 l&#039;aide des touches fl\u00e9ch\u00e9es.\" data-no-translation-aria-label=\"\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-649863461\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-649863461\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tBr\u00e8ve pr\u00e9sentation\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863462\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863462\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tFonctionnalit\u00e9\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863463\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863463\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tStructure\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863464\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863464\" style=\"--n-tabs-title-order: 4;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tCaract\u00e9ristiques techniques\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863465\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"5\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863465\" style=\"--n-tabs-title-order: 5;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tSch\u00e9ma\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863466\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"6\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863466\" style=\"--n-tabs-title-order: 6;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tFAQ\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-649863461\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863461\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-63d4ba4 e-con-full e-flex e-con e-child\" data-id=\"63d4ba4\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-76c97e8 elementor-widget elementor-widget-heading\" data-id=\"76c97e8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Br\u00e8ve pr\u00e9sentation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40fb5fa elementor-widget elementor-widget-text-editor\" data-id=\"40fb5fa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>\u2160. Pr\u00e9sentation du produit<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Normes applicables aux cadres dirigeants<\/b><\/strong>: T\/GES 001-2017, s\u00e9rie GB 1094<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Niveau de tension<\/b><\/strong>: Le c\u00f4t\u00e9 haute tension est g\u00e9n\u00e9ralement de 10 kV, et le c\u00f4t\u00e9 basse tension de 0,4 kV ; des tensions plus \u00e9lev\u00e9es, telles que 110 kV, sont \u00e9galement disponibles.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>M\u00e9thode de r\u00e9gulation de tension<\/b><\/strong>: R\u00e9gulation de la tension \u00e0 vide (une coupure de courant est n\u00e9cessaire pour le r\u00e9glage des prises)<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Gamme de prises de haute tension<\/b><\/strong>: \u00b15% ou \u00b12\u00d72,5%. Il sert \u00e0 r\u00e9guler la tension de sortie dans une plage sp\u00e9cifi\u00e9e lorsque la tension du r\u00e9seau subit des fluctuations.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Capacit\u00e9 nominale<\/b><\/strong>: La plage habituelle va de 30 kVA \u00e0 500 kVA<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Fr\u00e9quence<\/b><\/strong>: 50 Hz ou 60 Hz<\/p><p><strong><b>7.<\/b><\/strong><strong><b>Phase<\/b><\/strong>: Triphas\u00e9 ou monophas\u00e9<\/p><p><strong><b>8.<\/b><\/strong><strong><b>Groupe de connexion<\/b><\/strong>: Dyn11, Yyn0<\/p><p><strong><b>9.<\/b><\/strong><strong><b>Imp\u00e9dance Tension<\/b><\/strong>: 4%<\/p><p><strong><b>10.<\/b><\/strong><strong><b>M\u00e9thode de refroidissement<\/b><\/strong>:<\/p><p>\u2460 Refroidissement autonome par immersion dans l'huile (ONAN) ;<\/p><p>\u2461 Refroidissement autonome de type sec (AN) ;<\/p><p>\u2462 Refroidissement par air forc\u00e9 \u00e0 sec (AF)<\/p><p><strong><b>11.<\/b><\/strong><strong><b>Classe de protection<\/b><\/strong>: Le r\u00e9servoir d'huile des transformateurs \u00e0 bain d'huile assure lui-m\u00eame la protection ; les transformateurs de type sec pr\u00e9sentent g\u00e9n\u00e9ralement un indice de protection IP20 (protection contre les corps \u00e9trangers solides).<\/p><p><strong><b>12.<\/b><\/strong><strong><b>Classe d'isolation<\/b><\/strong>: G\u00e9n\u00e9ralement de classe A ; les transformateurs \u00e0 sec utilisent couramment la classe F (155 \u00b0C) ou la classe H (180 \u00b0C) ; le niveau de r\u00e9sistance thermique de l'isolation des transformateurs de distribution \u00e0 forte surcharge r\u00e9pond aux conditions applicables aux valeurs limites d'isolation pour la classe B et les classes sup\u00e9rieures.<\/p><p><strong><b>II. Conditions d'exploitation<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Altitude<\/b><\/strong>: \u2264 1 000 m (une adaptation est n\u00e9cessaire pour les altitudes tr\u00e8s \u00e9lev\u00e9es)<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Temp\u00e9rature ambiante<\/b><\/strong>: -20 \u00b0C \u00e0 +45 \u00b0C<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Champ d'application<\/b><\/strong>: Convergence et renforcement des \u00e9nergies photovolta\u00efque et \u00e9olienne, interfaces avec les syst\u00e8mes de stockage d'\u00e9nergie, industries m\u00e9tallurgiques et chimiques (charges d'impact \u00e0 court terme des fours \u00e0 arc et des cellules d'\u00e9lectrolyse), sous-stations de traction ferroviaire, zones commerciales (pics de charge en soir\u00e9e) ; adapt\u00e9 aux situations pr\u00e9sentant de faibles taux de charge moyens annuels et des charges importantes \u00e0 court terme ou p\u00e9riodiques.<\/p><p><strong><b>\u2162. Types d'\u00e9preuves<\/b><\/strong><\/p><p>\u2460Contr\u00f4les de routine (obligatoires pour chaque unit\u00e9)<\/p><p>\u2461Essais de type (pour v\u00e9rifier la conception)<\/p><p><strong><b>\u2163. Contr\u00f4le des composants<\/b><\/strong><\/p><p>1. R\u00e9sistance en courant continu de la bobine, rapport de tension et d\u00e9signation du groupe de raccordement, tension d'imp\u00e9dance, essai de pertes \u00e0 vide ;<\/p><p>2. Courant \u00e0 vide, pertes en charge, essai de l'huile isolante (pour les mod\u00e8les \u00e0 bain d'huile), d\u00e9charges partielles (pour les mod\u00e8les \u00e0 sec), essai de r\u00e9sistance \u00e0 la tension appliqu\u00e9e et \u00e0 la tension induite, essai d'\u00e9tanch\u00e9it\u00e9 ;<\/p><p>3. Essai du changeur de prises en charge afin de s'assurer que chaque composant et les performances globales sont conformes aux normes de conception.<\/p><p><strong><b>\u2164. Types de certification<\/b><\/strong><\/p><p>Normes internationales : T\u00dcV, UL, KEMA, CE.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-649863462\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863462\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\"elementor-element elementor-element-2e2154e e-con-full e-flex e-con e-child\" data-id=\"2e2154e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f27574 elementor-widget elementor-widget-heading\" data-id=\"0f27574\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Caract\u00e9ristiques structurelles<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f30b232 elementor-widget elementor-widget-text-editor\" data-id=\"f30b232\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>\u2160. Caract\u00e9ristiques du produit<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Capacit\u00e9 de surcharge exceptionnelle<\/b><\/strong><\/p><p>\u2460 Les transformateurs \u00e0 forte capacit\u00e9 de surcharge ne se contentent pas de \u201c r\u00e9sister \u201d \u00e0 une surcharge ; leur capacit\u00e9 de surcharge est en effet quantifi\u00e9e avec pr\u00e9cision gr\u00e2ce \u00e0 une conception minutieuse.<\/p><p>\u2461 Courbe de surcharge type : il peut g\u00e9n\u00e9ralement fonctionner en toute s\u00e9curit\u00e9 \u00e0 1,5 fois sa capacit\u00e9 nominale pendant 6 heures ; \u00e0 1,75 fois sa capacit\u00e9 nominale pendant 3 heures ; et m\u00eame \u00e0 2,0 fois sa capacit\u00e9 nominale pendant 1 heure (les valeurs pr\u00e9cises varient en fonction de la conception et des normes du fabricant).<\/p><p>\u2462 Avantage : cela signifie que les utilisateurs n'ont pas besoin d'acheter un transformateur classique de capacit\u00e9 bien sup\u00e9rieure pour faire face \u00e0 des pics de charge occasionnels, ce qui leur permet de r\u00e9aliser d'importantes \u00e9conomies en termes d'investissement initial, d'espace d'installation et de co\u00fbts d'\u00e9lectricit\u00e9 li\u00e9s aux pertes \u00e0 vide lors du fonctionnement quotidien \u00e0 faible charge.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Excellentes performances de dissipation thermique<\/b><\/strong><\/p><p>\u2460 Les transformateurs \u00e0 forte surcharge am\u00e9liorent la dissipation thermique gr\u00e2ce \u00e0 plusieurs m\u00e9thodes :<\/p><p>Structure de dissipation thermique optimis\u00e9e : utilisation de r\u00e9servoirs d'huile ondul\u00e9s (pour augmenter la surface de dissipation thermique), de dissipateurs thermiques surdimensionn\u00e9s ou de tubes de dissipation thermique suppl\u00e9mentaires. Certains produits sont \u00e9galement \u00e9quip\u00e9s d'interfaces ou de dispositifs pr\u00e9configur\u00e9s pour le refroidissement par air forc\u00e9 (AF), qui activent les ventilateurs en cas de surcharge afin d'am\u00e9liorer consid\u00e9rablement la capacit\u00e9 de dissipation thermique.<\/p><p>\u2461 Utilisation de fluides \u00e0 haute conductivit\u00e9 thermique : les transformateurs \u00e0 huile utilisent souvent de l'huile \u00e0 point d'\u00e9clair \u00e9lev\u00e9 ou de l'huile isolante \u00e0 base d'esters naturels (huile isolante v\u00e9g\u00e9tale). Cette derni\u00e8re pr\u00e9sente non seulement un point d'\u00e9clair \u00e9lev\u00e9 et une bonne r\u00e9sistance au feu, mais ses mol\u00e9cules d'esters naturels offrent \u00e9galement de meilleures performances de refroidissement que l'huile min\u00e9rale.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Syst\u00e8me d'isolation \u00e0 haute r\u00e9sistance thermique<\/b><\/strong><\/p><p>\u2460 La chaleur est l'ennemi du vieillissement de l'isolation. Les transformateurs \u00e0 forte capacit\u00e9 de surcharge garantissent leur dur\u00e9e de vie en cas de surcharge gr\u00e2ce \u00e0 l'am\u00e9lioration de la classe de r\u00e9sistance thermique des mat\u00e9riaux d'isolation.<\/p><p>\u2461 Am\u00e9lioration des mat\u00e9riaux : les conducteurs d'enroulement utilisent des mat\u00e9riaux isolants de classe C ou H, tels que le papier NOMEX\u00ae et le film de polyimide, ou encore du papier en fibres de polyester hautement r\u00e9sistant \u00e0 la chaleur. Le papier isolant des transformateurs \u00e0 huile est g\u00e9n\u00e9ralement constitu\u00e9 de papier isolant haute densit\u00e9.<\/p><p>\u2462 Garantie de dur\u00e9e de vie thermique : m\u00eame si la temp\u00e9rature au point le plus chaud de l'enroulement atteint temporairement 140 \u00b0C ou plus en cas de surcharge, son syst\u00e8me d'isolation de classe H ou de classe C est parfaitement capable d'y r\u00e9sister. En revanche, une isolation ordinaire de classe A (105 \u00b0C) acc\u00e9l\u00e9rera le vieillissement jusqu\u2019\u00e0 ce qu\u2019elle subisse des dommages \u00e0 cette temp\u00e9rature. Cela garantit que le transformateur peut supporter des milliers de surcharges de courte dur\u00e9e au cours d\u2019une dur\u00e9e de vie de 30 ans.<\/p><p><strong><b>II. Avantages du produit<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong style=\"font-size: 16px;\"><b>Faibles pertes et haut rendement \u00e9nerg\u00e9tique<\/b><\/strong><\/p><p>\u2460 Une capacit\u00e9 de surcharge \u00e9lev\u00e9e n'est pas synonyme de forte consommation d'\u00e9nergie. Les transformateurs offrant une excellente capacit\u00e9 de surcharge sont \u00e9galement des produits \u00e9conomes en \u00e9nergie.<\/p><p>\u2461 Mat\u00e9riaux de noyau de pointe : on utilise g\u00e9n\u00e9ralement des t\u00f4les d'acier au silicium de haute qualit\u00e9, \u00e0 haute perm\u00e9abilit\u00e9 et \u00e0 faibles pertes, ou des noyaux en alliage amorphe, ce qui permet d'obtenir des pertes \u00e0 vide (P0) extr\u00eamement faibles. Cela permet de r\u00e9aliser des \u00e9conomies d'\u00e9nergie particuli\u00e8rement importantes dans les sc\u00e9narios d'exploitation caract\u00e9ris\u00e9s par des charges l\u00e9g\u00e8res prolong\u00e9es ou des conditions de fonctionnement \u00e0 vide (comme les r\u00e9seaux \u00e9lectriques ruraux).<\/p><p>\u2462 Respect des normes d'efficacit\u00e9 \u00e9nerg\u00e9tique : ces appareils respectent g\u00e9n\u00e9ralement, voire d\u00e9passent, la norme nationale d'efficacit\u00e9 \u00e9nerg\u00e9tique de premier niveau, ce qui permet aux utilisateurs de r\u00e9duire leurs co\u00fbts d'exploitation.<\/p><p>2.<strong style=\"font-size: 16px;\"><b>Haute r\u00e9sistance aux courts-circuits<\/b><\/strong><\/p><p>\u2460 Les chocs dus \u00e0 une surcharge et \u00e0 un court-circuit se produisent souvent simultan\u00e9ment. Sa structure est sp\u00e9cialement renforc\u00e9e pour r\u00e9sister \u00e0 des chocs d'une force \u00e9lectromagn\u00e9tique consid\u00e9rable.<\/p><p>\u2461 Renforcement m\u00e9canique : on utilise des enroulements en feuille ou des structures de compression axiales et radiales, ainsi que des mat\u00e9riaux isolants \u00e0 haute r\u00e9sistance, des plaques de traction en bois lamell\u00e9-coll\u00e9 (ou en fibre de verre) \u00e0 haute r\u00e9sistance et des vis de traction pour la fixation, afin d'\u00e9viter toute d\u00e9formation et instabilit\u00e9 des enroulements sous l'effet de la force \u00e9lectromagn\u00e9tique g\u00e9n\u00e9r\u00e9e par un court-circuit.<\/p><p>\u2462 Conception et proc\u00e9d\u00e9 : gr\u00e2ce \u00e0 des calculs \u00e9lectromagn\u00e9tiques pr\u00e9cis et \u00e0 un flux de fabrication optimis\u00e9, l'\u00e9quilibre amp\u00e8re-tour de l'enroulement est garanti, et le flux de fuite axial ainsi que les contraintes m\u00e9caniques en cas de court-circuit sont r\u00e9duits.<\/p><p>3.<strong style=\"font-size: 16px;\"><b>Adaptabilit\u00e9 environnementale et s\u00e9curit\u00e9 renforc\u00e9es<\/b><\/strong><\/p><p>\u2460 Indice de protection \u00e9lev\u00e9 : le r\u00e9servoir d'huile pr\u00e9sente une bonne \u00e9tanch\u00e9it\u00e9 et son indice de protection atteint g\u00e9n\u00e9ralement IP54 ou plus, ce qui lui conf\u00e8re une r\u00e9sistance \u00e0 la poussi\u00e8re et \u00e0 l'eau et le rend adapt\u00e9 aux environnements difficiles.<\/p><p>\u2461 Pr\u00e9vention des incendies et des explosions : en particulier pour les produits utilisant une huile isolante \u00e0 base d'ester naturel, leur point d'\u00e9clair peut d\u00e9passer les 300 \u00b0C, ce qui les rend pratiquement ininflammables, am\u00e9liorant ainsi consid\u00e9rablement la s\u00e9curit\u00e9 dans les lieux soumis \u00e0 des exigences \u00e9lev\u00e9es en mati\u00e8re de protection contre les incendies (tels que les centres commerciaux, les \u00e9coles et les zones foresti\u00e8res).<\/p><p>\u2462 Caract\u00e9ristiques environnementales : l'huile isolante \u00e0 base d'ester naturel est biod\u00e9gradable et non toxique, respectueuse de l'environnement, et ne pr\u00e9sente aucun risque de pollution des sols en cas de fuite.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-649863463\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863463\" data-tab-index=\"3\" style=\"--n-tabs-title-order: 3;\" class=\"elementor-element elementor-element-764f307 e-con-full e-flex e-con e-child\" data-id=\"764f307\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9872304 elementor-widget elementor-widget-heading\" data-id=\"9872304\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Structure du produit<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b1b2cc5 elementor-widget elementor-widget-text-editor\" data-id=\"b1b2cc5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>\u2160. Processus de production<\/b><\/strong><\/p><p><b><\/b><strong><b>1. D\u00e9coupe et formage<\/b><\/strong><\/p><p>Des cisailles de pr\u00e9cision \u00e0 commande num\u00e9rique (avec une pr\u00e9cision de positionnement de \u00b10,05 mm) sont utilis\u00e9es pour d\u00e9couper les t\u00f4les d\u2019acier au silicium afin d\u2019\u00e9viter les bavures (\u22640,02 mm) et de r\u00e9duire les pertes par fuite magn\u00e9tique caus\u00e9es par les espaces entre les lamelles. Les noyaux en alliage amorphe sont fabriqu\u00e9s selon un proc\u00e9d\u00e9 de bobinage, la tension de bobinage \u00e9tant contr\u00f4l\u00e9e entre 50 et 80 N afin de garantir une densit\u00e9 uniforme du noyau (\u2265 7,2 g\/cm\u00b3).<\/p><p><b><\/b><strong><b>2. Empilage et fixation<\/b><\/strong><\/p><p>Les t\u00f4les d'acier au silicium sont empil\u00e9es selon une m\u00e9thode d'empilage par paliers (d\u00e9calage des joints \u2264 1\/3 de la largeur de la t\u00f4le) et fix\u00e9es \u00e0 l'aide d'une colle isolante ou de vis traversantes. Le facteur d'empilement du noyau est \u2265 0,96 (pour les t\u00f4les d'acier au silicium) ou \u2265 0,88 (pour les alliages amorphes).<b><\/b><\/p><p><strong><b>3.<\/b><\/strong><strong><b>Fabrication de bobines : double am\u00e9lioration de la dissipation thermique et de la r\u00e9sistance m\u00e9canique<\/b><\/strong><\/p><p><strong><b>\u2460 Processus d'enroulement :<\/b><\/strong>Les enroulements basse tension sont r\u00e9alis\u00e9s selon la technique d'enroulement \u00e0 feuille (\u00e9paisseur de la feuille de cuivre : 0,5 \u00e0 2 mm, avec du papier isolant intercal\u00e9 entre les couches) afin d'augmenter la surface de dissipation thermique ; les enroulements haute tension sont r\u00e9alis\u00e9s selon la technique d'enroulement continu ou  (entrelac\u00e9). Des bobineuses \u00e0 commande num\u00e9rique (CNC) sont utilis\u00e9es pour garantir une tension d\u2019enroulement uniforme (\u00e9cart de tension \u2264 5%) afin d\u2019\u00e9viter toute surchauffe locale due \u00e0 des conducteurs trop l\u00e2ches.Pour les exigences de surcharge \u00e9lev\u00e9es, les enroulements adoptent une structure segment\u00e9e, avec des canaux d\u2019huile axiaux (pour le type \u00e0 huile, largeur des canaux : 8 \u00e0 12 mm) ou des canaux d\u2019air radiaux (pour le type \u00e0 sec, largeur des canaux : 5 \u00e0 8 mm) afin d\u2019am\u00e9liorer l\u2019efficacit\u00e9 de la dissipation thermique ; l\u2019erreur d\u2019espacement des canaux d\u2019air est \u2264 \u00b10,5 mm.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Assemblage g\u00e9n\u00e9ral et processus de traitement d'isolation<\/b><\/strong><\/p><p><strong><b>\u2460 Ensemble central :<\/b><\/strong>\u00a0Positionnement pr\u00e9cis et optimisation de la dissipation thermique<\/p><p><strong><b>\u2461 Ensemble noyau et enroulement :<\/b><\/strong>Un \u00e9quipement de levage \u00e0 commande num\u00e9rique (avec une pr\u00e9cision de positionnement de \u00b11 mm) est utilis\u00e9 pour monter les enroulements sur les colonnes du noyau. L'\u00e9cart de concentricit\u00e9 entre les enroulements haute tension et basse tension est \u2264 2 mm afin de garantir une r\u00e9partition uniforme du champ magn\u00e9tique de fuite. Des cales amortissantes (en caoutchouc ou en carton \u00e9lastique) sont plac\u00e9es entre le noyau et le r\u00e9servoir d'huile afin de r\u00e9duire les vibrations et le bruit de fonctionnement.<\/p><p><strong><b>\u2462 Installation de la structure de dissipation thermique :<\/b><\/strong>Type \u00e0 immersion dans l'huile : des r\u00e9servoirs d'huile ondul\u00e9s (hauteur d'ondulation : 50 \u00e0 80 mm, surface de dissipation thermique par onde unique \u2265 0,1 m\u00b2) ou des radiateurs \u00e0 ailettes (espacement des ailettes : 15 \u00e0 20 mm) sont install\u00e9s en fonction de la capacit\u00e9. Les grands mod\u00e8les sont \u00e9quip\u00e9s de pompes \u00e0 huile submersibles et de dispositifs de refroidissement par air (d\u00e9bit de la pompe \u00e0 huile \u2265 50 L\/min, pression d'air du ventilateur \u2265 200 Pa) afin de garantir que la vitesse de circulation de l'huile r\u00e9ponde aux exigences de dissipation thermique en cas de surcharge.<\/p><p><strong><b>\u2463 Type \u00e0 sec : <\/b><\/strong>Des dissipateurs thermiques en aluminium ou des conduits de refroidissement \u00e0 circulation d'air forc\u00e9e sont install\u00e9s \u00e0 l'ext\u00e9rieur des enroulements. L'\u00e9cart entre les conduits et les enroulements est inf\u00e9rieur ou \u00e9gal \u00e0 1 mm afin de garantir une circulation d'air homog\u00e8ne.<\/p><p><strong><b>\u2464 Traitement d'isolation de type sec :<\/b><\/strong>Une fois les enroulements moul\u00e9s et durcis, un meulage de surface et une r\u00e9paration de l'isolation sont effectu\u00e9s afin de garantir l'absence de bavures ou de bulles \u00e0 la surface (diam\u00e8tre des bulles \u2264 0,5 mm, nombre \u2264 3 par m\u00b2). L'ensemble de la surface est recouvert par pulv\u00e9risation d'un rev\u00eatement anti-pollution (tel que le rev\u00eatement PRTV, \u00e9paisseur : 0,3 \u00e0 0,5 mm) afin d'am\u00e9liorer la r\u00e9sistance \u00e0 la pollution.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Proc\u00e9d\u00e9 sp\u00e9cial de renforcement<\/b><\/strong><\/p><p><strong><b>\u2460 Pr\u00e9vention des courts-circuits et am\u00e9lioration de la r\u00e9sistance m\u00e9canique :<\/b><\/strong>Des structures de fixation rigides (telles que des vis de serrage et des colliers de serrage) sont utilis\u00e9es entre les enroulements, le noyau et le r\u00e9servoir d'huile. Une v\u00e9rification par simulation aux \u00e9l\u00e9ments finis (simulation de la force de court-circuit \u2265 25 fois le courant nominal) est effectu\u00e9e afin de s'assurer que la r\u00e9sistance aux courts-circuits est conforme aux normes.<\/p><p><strong>\u2461 Le changeur de prises est \u00e9quip\u00e9 d'un interrupteur \u00e0 vide ou de contacts en alliage d'argent et de tungst\u00e8ne :<\/strong>\u00a0avec une pression de contact \u2265 50 N, une r\u00e9sistance de contact \u2264 50 \u03bc\u03a9 et une dur\u00e9e de vie m\u00e9canique \u2265 5 000 cycles.<\/p><p><strong><b>\u2462 Proc\u00e9d\u00e9 d'\u00e9tanch\u00e9it\u00e9 totale et de protection anticorrosion :<\/b><\/strong>Les transformateurs \u00e0 huile peuvent, en option, \u00eatre dot\u00e9s d'une structure enti\u00e8rement \u00e9tanche. Le r\u00e9servoir d'huile est soud\u00e9 par soudage \u00e0 l'arc sous argon (renfort de soudure : 0 \u00e0 2 mm, sans pores ni inclusions) et est soumis \u00e0 un essai de pression hydraulique \u00e0 1,5 fois la pression nominale (aucune fuite pendant 30 minutes).<\/p><p><strong><b>\u2463 La surface des r\u00e9servoirs de fioul ext\u00e9rieurs est d\u00e9rouill\u00e9e par sablage :<\/b><\/strong>\u00a0puis recouvert d'un appr\u00eat \u00e9poxy riche en zinc (\u00e9paisseur : 60 \u00e0 80 \u03bcm) et d'une couche de finition r\u00e9sistante aux intemp\u00e9ries (\u00e9paisseur : 40 \u00e0 60 \u03bcm), et r\u00e9siste \u00e0 un essai au brouillard salin d'une dur\u00e9e \u2265 1 000 heures sans pr\u00e9senter de traces de rouille.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Processus de test et de contr\u00f4le qualit\u00e9<\/b><\/strong><\/p><p><strong><b>\u2460 Les transformateurs \u00e0 forte surcharge doivent passer des essais dont les exigences d\u00e9passent largement celles des normes habituelles :<\/b><\/strong>\u00a0Les principaux essais comprennent : Essai d'\u00e9l\u00e9vation de temp\u00e9rature en surcharge : simuler un fonctionnement continu sous des charges \u00e9gales \u00e0 1,5 fois et 2 fois la charge nominale, surveiller la temp\u00e9rature du point chaud de l'enroulement (classe F \u2264 155 \u2103, classe H \u2264 180 \u2103) et l'\u00e9l\u00e9vation de temp\u00e9rature maximale de l'huile (\u2264 55 K) afin de s'assurer que la courbe d'\u00e9l\u00e9vation de temp\u00e9rature r\u00e9pond aux exigences de conception.<\/p><p><strong><b>\u2461 Test d'efficacit\u00e9 \u00e9nerg\u00e9tique :<\/b><\/strong>\u00a0Les pertes \u00e0 vide et les pertes en charge doivent \u00eatre conformes \u00e0 la norme d'efficacit\u00e9 \u00e9nerg\u00e9tique de premier niveau GB 20052, et l'augmentation des pertes en cas de surcharge doit \u00eatre inf\u00e9rieure ou \u00e9gale \u00e0 5% de la valeur de conception.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-649863464\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863464\" data-tab-index=\"4\" style=\"--n-tabs-title-order: 4;\" class=\"elementor-element elementor-element-265fa39 e-con-full e-flex e-con e-child\" data-id=\"265fa39\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-73d198a elementor-widget elementor-widget-heading\" data-id=\"73d198a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Caract\u00e9ristiques techniques<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de4a9c0 elementor-widget elementor-widget-n-accordion\" data-id=\"de4a9c0\" data-element_type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2330\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2330\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Transformateur \u00e0 huile de 10 kV \u00e0 haute capacit\u00e9 de surcharge <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-bf0179b e-con-full e-flex e-con e-child\" data-id=\"bf0179b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f85fed elementor-widget elementor-widget-html\" data-id=\"0f85fed\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style type=\"text\/css\">\r\n.table-responsive {\r\n  width: 100%;\r\n  overflow-x: auto; \/* \u5c0f\u5c4f\u5e55\u53ef\u6a2a\u5411\u6eda\u52a8 *\/\r\n}\r\n\r\n\/* \u8868\u683c\u57fa\u7840\u6837\u5f0f *\/\r\n.tg  {\r\n  border-collapse: collapse;\r\n  border-spacing: 0;\r\n  min-width: 800px; \/* \u9632\u6b62\u8868\u683c\u88ab\u538b\u7f29\u5f97\u592a\u5c0f *\/\r\n}\r\n\r\n.tg td, .tg th {\r\n  border-color: black;\r\n  border-style: solid;\r\n  border-width: 1px;\r\n  font-family: Arial, sans-serif;\r\n  font-size: 14px;\r\n  overflow: hidden;\r\n  padding: 10px 5px;\r\n  text-align: center;\r\n  vertical-align: top;\r\n  word-break: normal;\r\n}\r\n\r\n.tg th {\r\n  font-weight: normal;\r\n}\r\n\r\n.tg .tg-4fhu {\r\n  background-color: #FFF;\r\n  color: #212529;\r\n}\r\n\r\n\/* \u5e73\u677f\u9002\u914d *\/\r\n@media (max-width: 1024px) {\r\n  .tg td, .tg th {\r\n    font-size: 13px;\r\n    padding: 8px 4px;\r\n  }\r\n}\r\n\r\n\/* \u624b\u673a\u9002\u914d *\/\r\n@media (max-width: 768px) {\r\n  .tg td, .tg th {\r\n    font-size: 12px;\r\n    padding: 6px 3px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<div class=\"table-responsive\">\r\n<table class=\"tg\">\r\n<thead>\r\n  <tr>\r\n<style type=\"text\/css\">\r\n.tg  {border-collapse:collapse;border-spacing:0;}\r\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg .tg-nrix{text-align:center;vertical-align:middle}\r\n<\/style>\r\n<table class=\"tg\"><thead>\r\n  <tr>\r\n    <th class=\"tg-nrix\" rowspan=\"2\">Capacit\u00e9 nominale<\/th>\r\n    <th class=\"tg-nrix\" rowspan=\"2\">H.V.<\/th>\r\n    <th class=\"tg-nrix\" rowspan=\"2\">L.V.<\/th>\r\n    <th class=\"tg-nrix\" rowspan=\"2\">Symbole de connexion<\/th>\r\n    <th class=\"tg-nrix\" colspan=\"3\">Perte \u00e0 vide (W)<\/th>\r\n    <th class=\"tg-nrix\" colspan=\"3\">Perte en charge (W)<\/th>\r\n    <th class=\"tg-nrix\" rowspan=\"2\">Imp\u00e9dance de court-circuit<\/th>\r\n  <\/tr>\r\n  <tr>\r\n    <th class=\"tg-nrix\">S13<\/th>\r\n    <th class=\"tg-nrix\">S20<\/th>\r\n    <th class=\"tg-nrix\">S22<\/th>\r\n    <th class=\"tg-nrix\">S13<\/th>\r\n    <th class=\"tg-nrix\">S20<\/th>\r\n    <th class=\"tg-nrix\">S22<\/th>\r\n  <\/tr><\/thead>\r\n<tbody>\r\n  <tr>\r\n    <td class=\"tg-nrix\">30<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"19\">6<br><br><br>6.3<br><br><br>10<br><br><br>10.5<br><br><br>11<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"19\">0.4<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"19\">Dyn11<br><br><br><br><br><br><br><br>Yyn0<\/td>\r\n    <td class=\"tg-nrix\">80<\/td>\r\n    <td class=\"tg-nrix\">70<\/td>\r\n    <td class=\"tg-nrix\">65<\/td>\r\n    <td class=\"tg-nrix\">630\/660<\/td>\r\n    <td class=\"tg-nrix\">505\/480<\/td>\r\n    <td class=\"tg-nrix\">455\/430<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"12\">4<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">50<\/td>\r\n    <td class=\"tg-nrix\">100<\/td>\r\n    <td class=\"tg-nrix\">90<\/td>\r\n    <td class=\"tg-nrix\">80<\/td>\r\n    <td class=\"tg-nrix\">910\/870<\/td>\r\n    <td class=\"tg-nrix\">730\/695<\/td>\r\n    <td class=\"tg-nrix\">655\/625<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">63<\/td>\r\n    <td class=\"tg-nrix\">110<\/td>\r\n    <td class=\"tg-nrix\">100<\/td>\r\n    <td class=\"tg-nrix\">90<\/td>\r\n    <td class=\"tg-nrix\">1090\/1040<\/td>\r\n    <td class=\"tg-nrix\">870\/830<\/td>\r\n    <td class=\"tg-nrix\">785\/745<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">80<\/td>\r\n    <td class=\"tg-nrix\">130<\/td>\r\n    <td class=\"tg-nrix\">115<\/td>\r\n    <td class=\"tg-nrix\">105<\/td>\r\n    <td class=\"tg-nrix\">1310\/1250<\/td>\r\n    <td class=\"tg-nrix\">1050\/1000<\/td>\r\n    <td class=\"tg-nrix\">945\/900<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">100<\/td>\r\n    <td class=\"tg-nrix\">150<\/td>\r\n    <td class=\"tg-nrix\">135<\/td>\r\n    <td class=\"tg-nrix\">120<\/td>\r\n    <td class=\"tg-nrix\">1580\/1500<\/td>\r\n    <td class=\"tg-nrix\">1265\/1200<\/td>\r\n    <td class=\"tg-nrix\">1140\/1080<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">125<\/td>\r\n    <td class=\"tg-nrix\">170<\/td>\r\n    <td class=\"tg-nrix\">150<\/td>\r\n    <td class=\"tg-nrix\">135<\/td>\r\n    <td class=\"tg-nrix\">1890\/1800<\/td>\r\n    <td class=\"tg-nrix\">1510\/1440<\/td>\r\n    <td class=\"tg-nrix\">1360\/1295<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">160<\/td>\r\n    <td class=\"tg-nrix\">200<\/td>\r\n    <td class=\"tg-nrix\">180<\/td>\r\n    <td class=\"tg-nrix\">160<\/td>\r\n    <td class=\"tg-nrix\">2310\/2200<\/td>\r\n    <td class=\"tg-nrix\">1850\/1760<\/td>\r\n    <td class=\"tg-nrix\">1665\/1585<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">200<\/td>\r\n    <td class=\"tg-nrix\">240<\/td>\r\n    <td class=\"tg-nrix\">215<\/td>\r\n    <td class=\"tg-nrix\">190<\/td>\r\n    <td class=\"tg-nrix\">2730\/2600<\/td>\r\n    <td class=\"tg-nrix\">2185\/2080<\/td>\r\n    <td class=\"tg-nrix\">1970\/1870<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">250<\/td>\r\n    <td class=\"tg-nrix\">290<\/td>\r\n    <td class=\"tg-nrix\">260<\/td>\r\n    <td class=\"tg-nrix\">230<\/td>\r\n    <td class=\"tg-nrix\">3200\/3050<\/td>\r\n    <td class=\"tg-nrix\">2560\/2440<\/td>\r\n    <td class=\"tg-nrix\">2300\/2195<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">315<\/td>\r\n    <td class=\"tg-nrix\">340<\/td>\r\n    <td class=\"tg-nrix\">305<\/td>\r\n    <td class=\"tg-nrix\">270<\/td>\r\n    <td class=\"tg-nrix\">3830\/3650<\/td>\r\n    <td class=\"tg-nrix\">3065\/2920<\/td>\r\n    <td class=\"tg-nrix\">2760\/2630<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">400<\/td>\r\n    <td class=\"tg-nrix\">410<\/td>\r\n    <td class=\"tg-nrix\">370<\/td>\r\n    <td class=\"tg-nrix\">330<\/td>\r\n    <td class=\"tg-nrix\">4520\/4300<\/td>\r\n    <td class=\"tg-nrix\">3615\/3440<\/td>\r\n    <td class=\"tg-nrix\">3250\/3095<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">500<\/td>\r\n    <td class=\"tg-nrix\">480<\/td>\r\n    <td class=\"tg-nrix\">430<\/td>\r\n    <td class=\"tg-nrix\">385<\/td>\r\n    <td class=\"tg-nrix\">5410\/5150<\/td>\r\n    <td class=\"tg-nrix\">4330\/4120<\/td>\r\n    <td class=\"tg-nrix\">3900\/3710<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">630<\/td>\r\n    <td class=\"tg-nrix\">570<\/td>\r\n    <td class=\"tg-nrix\">510<\/td>\r\n    <td class=\"tg-nrix\">460<\/td>\r\n    <td class=\"tg-nrix\">6200<\/td>\r\n    <td class=\"tg-nrix\">4960<\/td>\r\n    <td class=\"tg-nrix\">4460<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"5\">4.5<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">800<\/td>\r\n    <td class=\"tg-nrix\">700<\/td>\r\n    <td class=\"tg-nrix\">630<\/td>\r\n    <td class=\"tg-nrix\">560<\/td>\r\n    <td class=\"tg-nrix\">7500<\/td>\r\n    <td class=\"tg-nrix\">6000<\/td>\r\n    <td class=\"tg-nrix\">5400<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">1000<\/td>\r\n    <td class=\"tg-nrix\">830<\/td>\r\n    <td class=\"tg-nrix\">745<\/td>\r\n    <td class=\"tg-nrix\">665<\/td>\r\n    <td class=\"tg-nrix\">10300<\/td>\r\n    <td class=\"tg-nrix\">8240<\/td>\r\n    <td class=\"tg-nrix\">7415<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">1250<\/td>\r\n    <td class=\"tg-nrix\">970<\/td>\r\n    <td class=\"tg-nrix\">870<\/td>\r\n    <td class=\"tg-nrix\">780<\/td>\r\n    <td class=\"tg-nrix\">12000<\/td>\r\n    <td class=\"tg-nrix\">9600<\/td>\r\n    <td class=\"tg-nrix\">8640<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">1600<\/td>\r\n    <td class=\"tg-nrix\">1170<\/td>\r\n    <td class=\"tg-nrix\">1050<\/td>\r\n    <td class=\"tg-nrix\">940<\/td>\r\n    <td class=\"tg-nrix\">14500<\/td>\r\n    <td class=\"tg-nrix\">11600<\/td>\r\n    <td class=\"tg-nrix\">10440<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">2000<\/td>\r\n    <td class=\"tg-nrix\">1360<\/td>\r\n    <td class=\"tg-nrix\">1225<\/td>\r\n    <td class=\"tg-nrix\">1085<\/td>\r\n    <td class=\"tg-nrix\">18300<\/td>\r\n    <td class=\"tg-nrix\">14640<\/td>\r\n    <td class=\"tg-nrix\">13180<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"2\">5<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">2500<\/td>\r\n    <td class=\"tg-nrix\">1600<\/td>\r\n    <td class=\"tg-nrix\">1440<\/td>\r\n    <td class=\"tg-nrix\">1280<\/td>\r\n    <td class=\"tg-nrix\">21200<\/td>\r\n    <td class=\"tg-nrix\">14840<\/td>\r\n    <td class=\"tg-nrix\">13360<\/td>\r\n  <\/tr>\r\n<\/tbody><\/table>\r\n<\/thead>\r\n<tbody>\r\n  <!-- \u4f60\u539f\u6765\u7684 <tr> \u6570\u636e\u4fdd\u6301\u4e0d\u53d8\uff0c\u76f4\u63a5\u653e\u8fd9\u91cc -->\r\n  <!-- ... \u539f\u59cb\u8868\u683c\u5185\u5bb9 ... -->\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-649863465\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863465\" data-tab-index=\"5\" style=\"--n-tabs-title-order: 5;\" class=\"elementor-element elementor-element-53e5531 e-con-full e-flex e-con e-child\" data-id=\"53e5531\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-bd32b31 e-flex e-con-boxed e-con e-child\" data-id=\"bd32b31\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cde164f elementor-widget elementor-widget-image\" data-id=\"cde164f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"751\" src=\"https:\/\/www.ketetransformer.com\/wp-content\/uploads\/2025\/08\/\u6cb9\u6d78\u5f0f\u53d8\u538b\u5668\u56fe\u7eb8-1024x751.png\" class=\"attachment-large size-large wp-image-4659\" alt=\"\" srcset=\"https:\/\/www.ketetransformer.com\/wp-content\/uploads\/2025\/08\/\u6cb9\u6d78\u5f0f\u53d8\u538b\u5668\u56fe\u7eb8-1024x751.png 1024w, https:\/\/www.ketetransformer.com\/wp-content\/uploads\/2025\/08\/\u6cb9\u6d78\u5f0f\u53d8\u538b\u5668\u56fe\u7eb8-300x220.png 300w, https:\/\/www.ketetransformer.com\/wp-content\/uploads\/2025\/08\/\u6cb9\u6d78\u5f0f\u53d8\u538b\u5668\u56fe\u7eb8-768x564.png 768w, https:\/\/www.ketetransformer.com\/wp-content\/uploads\/2025\/08\/\u6cb9\u6d78\u5f0f\u53d8\u538b\u5668\u56fe\u7eb8-600x440.png 600w, https:\/\/www.ketetransformer.com\/wp-content\/uploads\/2025\/08\/\u6cb9\u6d78\u5f0f\u53d8\u538b\u5668\u56fe\u7eb8.png 1063w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-649863466\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863466\" data-tab-index=\"6\" style=\"--n-tabs-title-order: 6;\" class=\"elementor-element elementor-element-a681f0e e-con-full e-flex e-con e-child\" data-id=\"a681f0e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11bf213 elementor-widget elementor-widget-heading\" data-id=\"11bf213\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d080af3 elementor-widget elementor-widget-n-accordion\" data-id=\"d080af3\" data-element_type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2180\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2180\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 1. Quelle est la diff\u00e9rence entre un transformateur \u00e0 forte capacit\u00e9 de surcharge et un transformateur ordinaire ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2180\" class=\"elementor-element elementor-element-05eeb49 e-con-full e-flex e-con e-child\" data-id=\"05eeb49\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d60b237 elementor-widget elementor-widget-text-editor\" data-id=\"d60b237\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u2460 La diff\u00e9rence fondamentale r\u00e9side dans le concept de conception et les capacit\u00e9s. Transformateur classique : \u00e0 l'instar d'un marathonien, il doit fonctionner de mani\u00e8re stable \u00e0 sa puissance nominale pendant une longue p\u00e9riode, avec une faible capacit\u00e9 de surcharge. Une surcharge de courte dur\u00e9e provoquera une surchauffe importante, entra\u00eenant un vieillissement de l'isolation, voire des dommages.<\/p><p>\u2461 Transformateur \u00e0 forte capacit\u00e9 de surcharge : \u00e0 l\u2019instar d\u2019un boxeur poids lourd, son \u201c squelette \u201d (enroulements, noyau) et ses \u201c muscles \u201d (syst\u00e8me d\u2019isolation) sont sp\u00e9cialement renforc\u00e9s, ce qui lui permet de supporter 1,5 fois, voire 2 fois sa capacit\u00e9 nominale pendant une courte p\u00e9riode (par exemple plusieurs heures) avec une \u201c force explosive \u201d, sans s\u2019endommager ni compromettre sa dur\u00e9e de vie normale.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2181\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2181\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 2. Une \" surcharge \" risque-t-elle de r\u00e9duire la dur\u00e9e de vie du transformateur ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2181\" class=\"elementor-element elementor-element-9b6bfdb e-con-full e-flex e-con e-child\" data-id=\"9b6bfdb\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3e23d10 elementor-widget elementor-widget-text-editor\" data-id=\"3e23d10\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Il s'agit l\u00e0 d'une id\u00e9e fausse courante. Une surcharge correctement con\u00e7ue et g\u00e9r\u00e9e ne r\u00e9duit pas de mani\u00e8re significative la dur\u00e9e de vie du transformateur. Les transformateurs \u00e0 forte capacit\u00e9 de surcharge utilisent des mat\u00e9riaux d'isolation \u00e0 haute r\u00e9sistance thermique, tels que la classe H (180 \u00b0C) ou la classe C (220 \u00b0C). Leur conception permet \u00e0 la temp\u00e9rature au point chaud de l\u2019enroulement d\u2019atteindre temporairement une valeur tr\u00e8s \u00e9lev\u00e9e (par exemple 160 \u00b0C) en cas de surcharge, et le taux de vieillissement du mat\u00e9riau isolant reste tr\u00e8s faible \u00e0 cette temp\u00e9rature. Les transformateurs ordinaires utilisent une isolation de classe A (105 \u00b0C), qui acc\u00e9l\u00e8re le vieillissement lorsque la temp\u00e9rature d\u00e9passe cette valeur. Par cons\u00e9quent, les transformateurs \u00e0 haute capacit\u00e9 de surcharge maintiennent la \u201c surcharge \u201d dans une plage raisonnable que leurs mat\u00e9riaux isolants sont capables de supporter.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2182\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2182\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 3. Mon projet n\u00e9cessite-t-il l'utilisation d'un transformateur \u00e0 forte capacit\u00e9 de surcharge ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2182\" class=\"elementor-element elementor-element-eb6a4dc e-con-full e-flex e-con e-child\" data-id=\"eb6a4dc\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f1cf45 elementor-widget elementor-widget-text-editor\" data-id=\"5f1cf45\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u2460 Cette solution est particuli\u00e8rement adapt\u00e9e si votre charge \u00e9lectrique pr\u00e9sente les caract\u00e9ristiques suivantes : un taux de charge annuel moyen faible (&lt;40%), mais des charges \u00e0 court terme ou saisonni\u00e8res extr\u00eamement \u00e9lev\u00e9es ; des charges soumises \u00e0 des chocs importants ou \u00e0 des fluctuations p\u00e9riodiques (telles que le d\u00e9marrage de fours \u00e0 arc, de laminoirs et de cellules \u00e9lectrolytiques).<\/p><p>\u2461 En cas de pr\u00e9visions d'augmentation de la capacit\u00e9 mais de volont\u00e9 de r\u00e9duire les investissements, remplacer un transformateur standard de grande capacit\u00e9, qui pourrait s'av\u00e9rer n\u00e9cessaire \u00e0 l'avenir, par un transformateur \u00e0 forte capacit\u00e9 de surcharge. Espace d'installation limit\u00e9, ne permettant pas d'accueillir un transformateur de plus grande capacit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2183\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2183\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 4. Comment choisir un transformateur adapt\u00e9 aux surcharges \u00e9lev\u00e9es ? Quels sont les principaux param\u00e8tres \u00e0 prendre en compte ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2183\" class=\"elementor-element elementor-element-8566f20 e-con-full e-flex e-con e-child\" data-id=\"8566f20\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d6f876c elementor-widget elementor-widget-text-editor\" data-id=\"d6f876c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u2460 Les points suivants doivent \u00eatre pr\u00e9cis\u00e9s lors de la s\u00e9lection : Courbe de charge : pr\u00e9ciser le coefficient de surcharge et la dur\u00e9e (par exemple, n\u00e9cessit\u00e9 de fonctionner \u00e0 1,6 fois la charge pendant 4 heures).<\/p><p>\u2461 Capacit\u00e9 nominale : d\u00e9termin\u00e9e en fonction d'une charge normale, et non d'une surcharge.<\/p><p>\u2462 Classe de r\u00e9sistance thermique de l'isolation : au moins la classe H, qui constitue la base permettant de garantir la capacit\u00e9 de surcharge.<\/p><p>\u2463 Mode de refroidissement : \u00e0 bain d'huile (ONAN, bonne dissipation thermique, forte capacit\u00e9 de surcharge) ou \u00e0 sec (bonne r\u00e9sistance au feu, adapt\u00e9 \u00e0 une utilisation en int\u00e9rieur).<\/p><p>\u2464 Valeur des pertes : veillez \u00e0 tenir compte des pertes \u00e0 vide (Po) et des pertes en charge (Pk), et choisissez des produits \u00e9conomes en \u00e9nergie afin de r\u00e9duire les co\u00fbts d'exploitation.<\/p><p>\u2465 Indice de protection : s\u00e9lectionnez l'indice de protection IP adapt\u00e9 en fonction de l'environnement d'installation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2184\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2184\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 5. Quels sont les indicateurs de surveillance les plus importants lors du fonctionnement d'un transformateur soumis \u00e0 une forte surcharge ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2184\" class=\"elementor-element elementor-element-3b6302b e-con-full e-flex e-con e-child\" data-id=\"3b6302b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4da9555 elementor-widget elementor-widget-text-editor\" data-id=\"4da9555\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Il est n\u00e9cessaire de surveiller en temps r\u00e9el la temp\u00e9rature des enroulements (gr\u00e2ce \u00e0 des capteurs PT100 int\u00e9gr\u00e9s) et la temp\u00e9rature de l'huile en surface (pour les mod\u00e8les \u00e0 immersion dans l'huile). Veillez \u00e0 ce que la temp\u00e9rature soit maintenue dans les limites sp\u00e9cifi\u00e9es par notre soci\u00e9t\u00e9, m\u00eame en cas de surcharge. Parall\u00e8lement, le courant de charge doit \u00e9galement \u00eatre surveill\u00e9 afin de s'assurer qu'il ne d\u00e9passe pas la courbe de surcharge pr\u00e9d\u00e9finie.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2185\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"6\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2185\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 6. \u00c0 quoi faut-il veiller une fois le fonctionnement \u00e0 forte surcharge termin\u00e9 ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2185\" class=\"elementor-element elementor-element-d41fa9f e-con-full e-flex e-con e-child\" data-id=\"d41fa9f\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0fd938a elementor-widget elementor-widget-text-editor\" data-id=\"0fd938a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Une fois le fonctionnement en surcharge termin\u00e9, le transformateur se trouve dans un \u00e9tat de temp\u00e9rature \u00e9lev\u00e9e. Il doit continuer \u00e0 fonctionner \u00e0 vide ou sous faible charge pendant un certain temps, et utiliser son propre syst\u00e8me de refroidissement (refroidissement naturel par air ou circulation d\u2019huile) pour ramener progressivement la temp\u00e9rature \u00e0 un niveau normal, afin d\u2019\u00e9viter les dommages dus aux contraintes subies par le mat\u00e9riau isolant en cas de refroidissement ou de r\u00e9chauffement rapide. Pour les transformateurs \u00e0 refroidissement par air forc\u00e9, les ventilateurs doivent \u00eatre arr\u00eat\u00e9s avec un certain d\u00e9lai.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2186\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"7\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2186\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 7. Son entretien est-il identique \u00e0 celui des transformateurs classiques ? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewbox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2186\" class=\"elementor-element elementor-element-09a50ce e-con-full e-flex e-con e-child\" data-id=\"09a50ce\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f9d6bbd elementor-widget elementor-widget-text-editor\" data-id=\"f9d6bbd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u2460 Les op\u00e9rations d'entretien de base sont similaires (comme la v\u00e9rification des fixations, le nettoyage du bo\u00eetier et la mesure de la r\u00e9sistance d'isolement), mais certains points m\u00e9ritent une attention particuli\u00e8re.<\/p><p>\u2461 Analyse de l'huile (pour les mod\u00e8les \u00e0 bain d'huile) : effectuez r\u00e9guli\u00e8rement une analyse chromatographique de l'huile (DGA), car les temp\u00e9ratures \u00e9lev\u00e9es g\u00e9n\u00e9r\u00e9es lors d'une surcharge peuvent acc\u00e9l\u00e9rer le vieillissement des mat\u00e9riaux isolants et entra\u00eener la formation de certains gaz caract\u00e9ristiques ; la DGA permet de d\u00e9tecter efficacement les d\u00e9fauts potentiels.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Un transformateur \u00e0 forte capacit\u00e9 de surcharge est un transformateur de puissance sp\u00e9cial capable de fonctionner au-del\u00e0 de sa capacit\u00e9 nominale sans que cela n'affecte sa dur\u00e9e de vie normale. Il est principalement utilis\u00e9 dans des contextes caract\u00e9ris\u00e9s par de faibles taux de charge annuels moyens mais des charges de courte dur\u00e9e \u00e9lev\u00e9es, ce qui permet de r\u00e9aliser d'importantes \u00e9conomies en termes d'investissement en \u00e9quipement et de co\u00fbts d'\u00e9lectricit\u00e9. Gr\u00e2ce \u00e0 des mat\u00e9riaux de pointe, \u00e0 une conception structurelle sp\u00e9cifique et \u00e0 un syst\u00e8me de contr\u00f4le intelligent, les transformateurs \u00e0 forte capacit\u00e9 de surcharge offrent une capacit\u00e9 de surcharge \u00e0 court terme s\u00fbre et fiable. Ils constituent une solution d'alimentation \u00e9lectrique \u00e9conomique, flexible et efficace pour les situations n\u00e9cessitant de faire face \u00e0 de fortes fluctuations de charge ou pr\u00e9voyant une augmentation de capacit\u00e9 \u00e0 court terme.<\/p>","protected":false},"featured_media":5675,"template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","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 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#1\",\"content_width\":\"full\",\"flex_direction\":\"column\",\"border_border\":\"solid\",\"border_width\":{\"unit\":\"px\",\"top\":\"1\",\"right\":\"1\",\"bottom\":\"1\",\"left\":\"1\",\"isLinked\":true},\"padding\":{\"unit\":\"px\",\"top\":\"50\",\"right\":\"30\",\"bottom\":\"50\",\"left\":\"30\",\"isLinked\":false},\"__globals__\":{\"border_color\":\"globals\\\/colors?id=secondary\"},\"padding_mobile\":{\"unit\":\"px\",\"top\":\"10\",\"right\":\"10\",\"bottom\":\"10\",\"left\":\"10\",\"isLinked\":true}},\"elements\":[{\"id\":\"76c97e8\",\"elType\":\"widget\",\"settings\":{\"title\":\"Brief Introduction\",\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=204d764\"}},\"elements\":[],\"widgetType\":\"heading\"},{\"id\":\"40fb5fa\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p><strong><b>\\u2160. Product Introduction<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Executive Standards<\\\/b><\\\/strong>: T\\\/GES 001-2017, GB 1094 Series<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Voltage Level<\\\/b><\\\/strong>: The high-voltage side is commonly 10kV, and the low-voltage side is 0.4kV; higher voltage levels such as 110kV are also available.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Voltage Regulation Method<\\\/b><\\\/strong>: No-load voltage regulation (power outage is required for tap adjustment)<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>High-Voltage Tap Range<\\\/b><\\\/strong>: \\u00b15% or \\u00b12\\u00d72.5%. It is used to adjust the output voltage within a qualified range when the grid voltage fluctuates.<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>Rated Capacity<\\\/b><\\\/strong>: Common range is 30kVA to 500kVA<\\\/p><p><strong><b>6.<\\\/b><\\\/strong><strong><b>Frequency<\\\/b><\\\/strong>: 50Hz or 60Hz<\\\/p><p><strong><b>7.<\\\/b><\\\/strong><strong><b>Phase<\\\/b><\\\/strong>: Three-phase or single-phase<\\\/p><p><strong><b>8.<\\\/b><\\\/strong><strong><b>Connection Group<\\\/b><\\\/strong>: Dyn11, Yyn0<\\\/p><p><strong><b>9.<\\\/b><\\\/strong><strong><b>Impedance Voltage<\\\/b><\\\/strong>: 4%<\\\/p><p><strong><b>10.<\\\/b><\\\/strong><strong><b>Cooling Method<\\\/b><\\\/strong>:<\\\/p><p>\\u2460 Oil-immersed self-cooling (ONAN);<\\\/p><p>\\u2461 Dry-type self-cooling (AN);<\\\/p><p>\\u2462 Dry-type forced air cooling (AF)<\\\/p><p><strong><b>11.<\\\/b><\\\/strong><strong><b>Protection Class<\\\/b><\\\/strong>: The oil tank of oil-immersed transformers provides protection itself; dry-type transformers usually have IP20 (protection against solid foreign objects).<\\\/p><p><strong><b>12.<\\\/b><\\\/strong><strong><b>Insulation Class<\\\/b><\\\/strong>: Usually Class A; dry-type transformers commonly use Class F (155\\u2103) or Class H (180\\u2103); the insulation heat resistance level of high-overload distribution transformers meets the applicable conditions of insulation limit values for Class B and above.<\\\/p><p><strong><b>\\u2161. Operating Conditions<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Altitude<\\\/b><\\\/strong>: \\u22641000m (customization is required for ultra-high altitude)<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Ambient Temperature<\\\/b><\\\/strong>: -20\\u2103 ~ +45\\u2103<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Application Scope<\\\/b><\\\/strong>: Photovoltaic\\\/wind power converging and boosting, energy storage system interfaces, metallurgical and chemical industries (short-term impact loads of arc furnaces and electrolytic cells), rail transit traction substations, commercial areas (evening load peaks); suitable for occasions with low annual average load rates and heavy short-term or periodic loads.<\\\/p><p><strong><b>\\u2162. Test Types<\\\/b><\\\/strong><\\\/p><p>\\u2460Routine tests (mandatory for each unit)<\\\/p><p>\\u2461Type tests (to verify design)<\\\/p><p><strong><b>\\u2163. Component Inspection<\\\/b><\\\/strong><\\\/p><p>1.Coil DC resistance, voltage ratio and connection group label, impedance voltage, no-load loss test;<\\\/p><p>2.No-load current, load loss, insulating oil test (for oil-immersed type), partial discharge (for dry-type), applied voltage withstand test and induced voltage withstand test, sealing test;<\\\/p><p>3.On-load tap-changer test to ensure that each component and the overall performance meet the design standards.<\\\/p><p><strong><b>\\u2164. Certification Types<\\\/b><\\\/strong><\\\/p><p>International: TUV, UL, KEMA, CE.<\\\/p>\",\"paragraph_spacing\":{\"unit\":\"px\",\"size\":16,\"sizes\":[]},\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"2e2154e\",\"elType\":\"container\",\"settings\":{\"_title\":\"Tab #2\",\"content_width\":\"full\",\"border_border\":\"solid\",\"border_width\":{\"unit\":\"px\",\"top\":\"1\",\"right\":\"1\",\"bottom\":\"1\",\"left\":\"1\",\"isLinked\":true},\"padding\":{\"unit\":\"px\",\"top\":\"50\",\"right\":\"30\",\"bottom\":\"50\",\"left\":\"30\",\"isLinked\":false},\"__globals__\":{\"border_color\":\"globals\\\/colors?id=secondary\"},\"padding_mobile\":{\"unit\":\"px\",\"top\":\"10\",\"right\":\"10\",\"bottom\":\"10\",\"left\":\"10\",\"isLinked\":true}},\"elements\":[{\"id\":\"0f27574\",\"elType\":\"widget\",\"settings\":{\"title\":\"Structural Features\",\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=204d764\"}},\"elements\":[],\"widgetType\":\"heading\"},{\"id\":\"f30b232\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p><strong><b>\\u2160. Product Features<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Outstanding Overload Capability<\\\/b><\\\/strong><\\\/p><p>\\u2460 High-overload transformers do not simply \\\"withstand\\\" overload; instead, their overload capability is accurately quantified through careful design.<\\\/p><p>\\u2461 Typical overload curve: It can usually operate safely at 1.5 times the rated capacity for 6 hours; at 1.75 times the rated capacity for 3 hours; and even at 2.0 times the rated capacity for 1 hour (specific values vary depending on manufacturer design and standards).<\\\/p><p>\\u2462 Value: This means users do not need to purchase a much larger ordinary transformer for occasional peak loads, thus saving significant initial investment, installation space, and electricity costs from no-load losses during daily low-load operation.<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Excellent Heat Dissipation Performance<\\\/b><\\\/strong><\\\/p><p>\\u2460 High-overload transformers enhance heat dissipation through multiple methods:<\\\/p><p>Optimized heat dissipation structure: Adopt corrugated oil tanks (to increase heat dissipation area), enlarged heat sinks, or additional heat dissipation pipes. Some products also have preset interfaces or devices for forced air cooling (AF), which start fans during overload to significantly improve heat dissipation capacity.<\\\/p><p>\\u2461 Use of high thermal conductivity media: Oil-immersed transformers often use high-flash-point oil or natural ester insulating oil (vegetable insulating oil). The latter not only has a high flash point and good fire resistance but also has better cooling performance of its natural ester molecules than mineral oil.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>High Heat-Resistance Class Insulation System<\\\/b><\\\/strong><\\\/p><p>\\u2460 High temperature is the enemy of insulation aging. High-overload transformers ensure their service life during overload by improving the heat resistance class of insulation materials.<\\\/p><p>\\u2461 Material upgrade: Winding conductors use Class C or Class H insulation materials such as NOMEX\\u00ae paper and polyimide film, or high heat-resistant polyester fiber paper. The insulating paper of oil-immersed transformers usually uses high-density insulating paper.<\\\/p><p>\\u2462 Thermal life guarantee: Even if the hot-spot temperature of the winding temporarily reaches 140\\u2103 or higher during overload, its Class H or Class C insulation system can fully withstand it. In contrast, ordinary Class A insulation (105\\u2103) will accelerate aging until damage at this temperature. This ensures that the transformer can withstand thousands of short-term overloads within a 30-year service life.<\\\/p><p><strong><b>\\u2161. Product Advantages<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong style=\\\"font-size: 16px;\\\"><b>Low Loss and High Energy Efficiency<\\\/b><\\\/strong><\\\/p><p>\\u2460 High overload capability does not mean high energy consumption. Excellent high-overload transformers are also energy-saving products.<\\\/p><p>\\u2461 Advanced core materials: High-permeability, low-loss high-quality silicon steel sheets or amorphous alloy cores are generally used, resulting in extremely low no-load loss (P0). This has a particularly significant power-saving effect in operating scenarios with long-term light loads or no-load conditions (such as rural power grids).<\\\/p><p>\\u2462 Compliance with energy efficiency standards: They usually meet or exceed the national first-level energy efficiency standard, helping users reduce operating costs.<\\\/p><p>2.<strong style=\\\"font-size: 16px;\\\"><b>Strong Short-Circuit Withstand Capability<\\\/b><\\\/strong><\\\/p><p>\\u2460 Overload and short-circuit impacts often occur simultaneously. Its structure is specially reinforced to withstand huge electromagnetic force impacts.<\\\/p><p>\\u2461 Mechanical reinforcement: Foil windings or axial and radial compression structures are adopted, and high-strength insulation materials, high-strength laminated wood (or fiberglass) pull plates, and pull screws are used for fastening to prevent winding deformation and instability under short-circuit electromagnetic force.<\\\/p><p>\\u2462 Design and process: Through accurate electromagnetic calculation and optimized process flow, the ampere-turn balance of the winding is ensured, and the axial leakage flux and mechanical stress during short circuits are reduced.<\\\/p><p>3.<strong style=\\\"font-size: 16px;\\\"><b>Enhanced Environmental Adaptability and Safety<\\\/b><\\\/strong><\\\/p><p>\\u2460 High protection class: The oil tank has good sealing performance, and the protection class usually reaches IP54 or higher, providing dust and water resistance and being suitable for harsh environments.<\\\/p><p>\\u2461 Fire and explosion prevention: Especially for products using natural ester insulating oil, their flash point can reach more than 300\\u2103, which is almost non-flammable, greatly improving safety in places with high fire protection requirements (such as commercial centers, schools, and forest areas).<\\\/p><p>\\u2462 Environmental protection characteristics: Natural ester insulating oil is biodegradable and non-toxic, friendly to the environment, and has no risk of soil pollution in case of leakage.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"},\"paragraph_spacing\":{\"unit\":\"px\",\"size\":16,\"sizes\":[]}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"764f307\",\"elType\":\"container\",\"settings\":{\"_title\":\"Tab #3\",\"content_width\":\"full\",\"padding\":{\"unit\":\"px\",\"top\":\"50\",\"right\":\"30\",\"bottom\":\"50\",\"left\":\"30\",\"isLinked\":false},\"border_border\":\"solid\",\"border_width\":{\"unit\":\"px\",\"top\":\"1\",\"right\":\"1\",\"bottom\":\"1\",\"left\":\"1\",\"isLinked\":true},\"__globals__\":{\"border_color\":\"globals\\\/colors?id=secondary\"},\"padding_mobile\":{\"unit\":\"px\",\"top\":\"10\",\"right\":\"10\",\"bottom\":\"10\",\"left\":\"10\",\"isLinked\":true}},\"elements\":[{\"id\":\"9872304\",\"elType\":\"widget\",\"settings\":{\"title\":\"Product structure\",\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=204d764\"}},\"elements\":[],\"widgetType\":\"heading\"},{\"id\":\"b1b2cc5\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p><strong><b>\\u2160. Production Process<\\\/b><\\\/strong><\\\/p><p><b><\\\/b><strong><b>1.Cutting and Forming<\\\/b><\\\/strong><\\\/p><p>CNC precision shearing machines (with positioning accuracy of \\u00b10.05mm) are used to cut silicon steel sheets to avoid burrs (\\u22640.02mm) and reduce magnetic leakage loss caused by lamination gaps. Amorphous alloy cores are manufactured using a winding forming process, with the winding tension controlled at 50-80N to ensure uniform core density (\\u22657.2g\\\/cm\\u00b3).<\\\/p><p><b><\\\/b><strong><b>2.Stacking and Fastening<\\\/b><\\\/strong><\\\/p><p>Silicon steel sheets are stacked using a multi-stage step stacking method (seam misalignment \\u22641\\\/3 of the sheet width) and fastened with insulating adhesive or through screws. The core stacking factor is \\u22650.96 (for silicon steel sheets) or \\u22650.88 (for amorphous alloys).<b><\\\/b><\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Winding Manufacturing: Dual Enhancement of Heat Dissipation and Mechanical Strength<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460 Winding Process\\uff1a<\\\/b><\\\/strong>Low-voltage windings are manufactured using foil winding (copper foil thickness: 0.5-2mm, with insulating paper placed between layers) to increase the heat dissipation area; high-voltage windings are manufactured using continuous or \\u00a0(interleaved) winding. CNC winding machines are used to ensure uniform winding tension (tension deviation \\u22645%) to avoid local overheating caused by loose conductors.For high overload requirements, the windings adopt a segmented structure, with axial oil channels (for oil-immersed type, channel width: 8-12mm) or radial air channels (for dry-type, channel width: 5-8mm) to improve heat dissipation efficiency, and the air channel spacing error is \\u2264\\u00b10.5mm.<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>General Assembly and Insulation Treatment Process<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460 Core Assembly:<\\\/b><\\\/strong>\\u00a0Precise Positioning and Heat Dissipation Optimization<\\\/p><p><strong><b>\\u2461 Core and Winding Assembly\\uff1a<\\\/b><\\\/strong>CNC hoisting equipment (with positioning accuracy of \\u00b11mm) is used to mount the windings on the core columns. The concentricity deviation of the high-voltage and low-voltage windings is \\u22642mm to ensure uniform distribution of the leakage magnetic field. Shock-absorbing pads (rubber or elastic cardboard) are added between the core and the oil tank to reduce operating vibration and noise.<\\\/p><p><strong><b>\\u2462 Heat Dissipation Structure Installation\\uff1a<\\\/b><\\\/strong>Oil-immersed type: Corrugated oil tanks (corrugation height: 50-80mm, single-wave heat dissipation area \\u22650.1m\\u00b2) or finned radiators (fin spacing: 15-20mm) are configured according to the capacity. Large models are equipped with submersible oil pumps and air cooling devices (oil pump flow rate \\u226550L\\\/min, fan air pressure \\u2265200Pa) to ensure that the oil circulation speed meets the overload heat dissipation requirements.<\\\/p><p><strong><b>\\u2463 Dry-type: <\\\/b><\\\/strong>Aluminum heat sinks or forced air cooling ducts are installed outside the windings. The gap error between the ducts and the windings is \\u22641mm to ensure uniform air coverage.<\\\/p><p><strong><b>\\u2464 Dry-Type Insulation Treatment\\uff1a<\\\/b><\\\/strong>After the windings are cast and cured, surface grinding and insulation repair are performed to ensure no burrs or bubbles on the surface (bubble diameter \\u22640.5mm, quantity \\u22643 per m\\u00b2). The entire surface is sprayed with anti-pollution flashover coating (such as PRTV coating, thickness: 0.3-0.5mm) to improve pollution resistance.<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>Special Reinforcement Process<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460 Short-Circuit Prevention and Mechanical Strength Enhancement\\uff1a<\\\/b><\\\/strong>Rigid fixing structures (such as pull screws and clamps) are used between the windings, core, and oil tank. Finite element simulation verification (short-circuit force simulation \\u226525 times the rated current) is conducted to ensure that the short-circuit withstand capability meets the standards.<\\\/p><p><strong>\\u2461 The tap-changer adopts a vacuum interrupter or silver-tungsten alloy contacts\\uff1a<\\\/strong>\\u00a0with a contact pressure \\u226550N, contact resistance \\u226450\\u03bc\\u03a9, and a mechanical operation life \\u22655000 times.<\\\/p><p><strong><b>\\u2462 Full Sealing and Anti-Corrosion Process\\uff1a<\\\/b><\\\/strong>Oil-immersed transformers can optionally adopt a fully sealed structure. The oil tank is welded using argon arc welding (weld reinforcement: 0-2mm, no pores or inclusions) and passes a 1.5-times rated pressure water pressure test (no leakage for 30 minutes).<\\\/p><p><strong><b>\\u2463 The surface of outdoor oil tanks is derusted by sandblasting \\uff1a<\\\/b><\\\/strong>\\u00a0then sprayed with epoxy zinc-rich primer (thickness: 60-80\\u03bcm) and weather-resistant topcoat (thickness: 40-60\\u03bcm), and passes a salt spray test of \\u22651000 hours without rusting.<\\\/p><p><strong><b>6.<\\\/b><\\\/strong><strong><b>Testing and Quality Inspection Process<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460 High-overload transformers must pass tests that far exceed conventional standards\\uff1a<\\\/b><\\\/strong>\\u00a0Key test items include: Overload temperature rise test: Simulate continuous operation under 1.5-times and 2-times rated loads, monitor the winding hot-spot temperature (Class F \\u2264155\\u2103, Class H \\u2264180\\u2103) and top oil temperature rise (\\u226455K) to ensure that the temperature rise curve meets the design requirements.<\\\/p><p><strong><b>\\u2461 Energy efficiency test:<\\\/b><\\\/strong>\\u00a0No-load loss and load loss must meet the GB 20052 first-level energy efficiency standard, and the overload loss increment is \\u22645% of the design value.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"paragraph_spacing\":{\"unit\":\"px\",\"size\":16,\"sizes\":[]},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"265fa39\",\"elType\":\"container\",\"settings\":{\"_title\":\"Tab 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font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\\r\\n.tg .tg-nrix{text-align:center;vertical-align:middle}\\r\\n<\\\/style>\\r\\n<table class=\\\"tg\\\"><thead>\\r\\n  <tr>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">Rated Capacity<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">H.V.<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">L.V.<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">Connection symbol<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" colspan=\\\"3\\\">No-load loss(w)<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" colspan=\\\"3\\\">On-load loss(w)<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">Short circuit impedance<\\\/th>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <th class=\\\"tg-nrix\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S20<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S22<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S20<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S22<\\\/th>\\r\\n  <\\\/tr><\\\/thead>\\r\\n<tbody>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">30<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"19\\\">6<br><br><br>6.3<br><br><br>10<br><br><br>10.5<br><br><br>11<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"19\\\">0.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"19\\\">Dyn11<br><br><br><br><br><br><br><br>Yyn0<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">80<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">70<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">65<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">630\\\/660<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">505\\\/480<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">455\\\/430<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"12\\\">4<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">50<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">90<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">80<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">910\\\/870<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">730\\\/695<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">655\\\/625<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">63<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">110<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">90<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1090\\\/1040<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">870\\\/830<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">785\\\/745<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">80<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">130<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">115<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">105<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1310\\\/1250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1050\\\/1000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">945\\\/900<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">150<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">135<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">120<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1580\\\/1500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1265\\\/1200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1140\\\/1080<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">125<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">170<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">150<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">135<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1890\\\/1800<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1510\\\/1440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1360\\\/1295<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">160<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">180<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">160<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2310\\\/2200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1850\\\/1760<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1665\\\/1585<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">240<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">215<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">190<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2730\\\/2600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2185\\\/2080<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1970\\\/1870<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">290<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">260<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">230<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3200\\\/3050<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2560\\\/2440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2300\\\/2195<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">315<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">340<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">305<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">270<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3830\\\/3650<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3065\\\/2920<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2760\\\/2630<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">400<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">410<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">370<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">330<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4520\\\/4300<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3615\\\/3440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3250\\\/3095<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">480<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">430<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">385<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5410\\\/5150<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4330\\\/4120<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3900\\\/3710<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">630<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">570<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">510<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">460<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4960<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4460<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"5\\\">4.5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">800<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">700<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">630<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">560<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5400<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">830<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">745<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">665<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">10300<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">8240<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7415<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">970<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">870<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">780<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">12000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">9600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">8640<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1170<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1050<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">940<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">14500<\\\/td>\\r\\n    <td 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the transformer?\",\"_id\":\"6187cb3\"},{\"item_title\":\"3.Does my project need to use a high-overload transformer?\",\"_id\":\"9244a66\"},{\"item_title\":\"4. How to select a suitable high-overload transformer? What are the main parameters to consider?\",\"_id\":\"b474fe0\"},{\"item_title\":\"5. What are the most important monitoring indicators during the operation of a high-overload transformer?\",\"_id\":\"bab7d20\"},{\"item_title\":\"6. What should be noted after the end of high-overload operation?\",\"_id\":\"a2a227a\"},{\"item_title\":\"7. Is its maintenance the same as that of ordinary transformers?\",\"_id\":\"668e117\"}],\"accordion_item_title_icon\":{\"value\":\"fas fa-angle-right\",\"library\":\"fa-solid\"},\"accordion_item_title_icon_active\":{\"value\":\"fas fa-angle-down\",\"library\":\"fa-solid\"},\"default_state\":\"all_collapsed\",\"max_items_expended\":\"multiple\",\"accordion_item_title_space_between\":{\"unit\":\"px\",\"size\":10,\"sizes\":[]},\"accordion_background_normal_background\":\"classic\",\"accordion_background_normal_color\":\"#F2F2F2\",\"accordion_background_hover_background\":\"classic\",\"accordion_background_hover_color\":\"#0055AA\",\"accordion_background_active_background\":\"classic\",\"accordion_background_active_color\":\"#0055AA\",\"title_typography_typography\":\"custom\",\"title_typography_font_family\":\"Arial\",\"title_typography_font_size\":{\"unit\":\"px\",\"size\":14,\"sizes\":[]},\"title_typography_font_weight\":\"600\",\"hover_title_color\":\"#FFFFFF\",\"active_title_color\":\"#FFFFFF\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"title_typography_typography\":\"\",\"accordion_background_hover_color\":\"globals\\\/colors?id=primary\",\"hover_title_color\":\"\",\"active_title_color\":\"\",\"accordion_background_active_color\":\"globals\\\/colors?id=primary\",\"accordion_background_normal_color\":\"globals\\\/colors?id=556a01c\"}},\"elements\":[{\"id\":\"05eeb49\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"d60b237\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>\\u2460 The core difference lies in the design concept and capability.Ordinary transformer: Like a marathon runner, it is required to operate stably at its rated capacity for a long time, with weak overload capability. Short-term overload will cause severe overheating, leading to insulation aging or even damage.<\\\/p><p>\\u2461 High-overload transformer: Like a heavyweight boxer, its \\\"skeleton\\\" (windings, core) and \\\"muscles\\\" (insulation system) are specially reinforced, enabling it to withstand 1.5-times or even 2-times the rated capacity for a short period (such as several hours) with \\\"explosive force\\\" without damaging itself or affecting its normal service life.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"},\"paragraph_spacing\":{\"unit\":\"px\",\"size\":16,\"sizes\":[]}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"9b6bfdb\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"3e23d10\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>This is a key misunderstanding. Properly designed and used overload will not significantly shorten the service life. High-overload transformers use high heat-resistance class insulation materials such as Class H (180\\u2103) or Class C (220\\u2103). Their design allows the winding hot-spot temperature to temporarily reach a very high value (such as 160\\u2103) during overload, and the aging rate of the insulation material is still very slow at this temperature. Ordinary transformers use Class A insulation (105\\u2103), which will accelerate aging when the temperature exceeds this value. Therefore, high-overload transformers control \\\"overload\\\" within a reasonable range that their insulation materials can withstand.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"eb6a4dc\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"5f1cf45\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>\\u2460 It is very suitable if your electrical load has the following characteristics:Low annual average load rate (&lt;40%), but extremely high short-term or seasonal loads.Loads with severe impact or periodic fluctuations (such as the start-up of arc furnaces, rolling mills, and electrolytic cells).<\\\/p><p>\\u2461 Having capacity expansion expectations but wanting to save investment, replacing a large-capacity ordinary transformer that may be needed in the future with one high-overload transformer.Limited installation space, unable to accommodate a larger-capacity transformer.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"},\"paragraph_spacing\":{\"unit\":\"px\",\"size\":16,\"sizes\":[]}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"8566f20\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"d6f876c\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>\\u2460 The following points must be clarified during selection:Load curve: Clear overload multiple and duration (for example, needing to operate at 1.6-times load for 4 hours).<\\\/p><p>\\u2461 Rated capacity: Selected based on normal load, not overload load.<\\\/p><p>\\u2462 Insulation heat resistance class: At least Class H, which is the basis for ensuring overload capability.<\\\/p><p>\\u2463 Cooling method: Oil-immersed (ONAN, good heat dissipation, strong overload capability) or dry-type (good fire resistance, suitable for indoor use).<\\\/p><p>\\u2464 Loss value: Pay attention to no-load loss (Po) and load loss (Pk), and select energy-saving products to reduce operating costs.<\\\/p><p>\\u2465 Protection class: Select the corresponding IP protection class according to the installation environment.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"},\"paragraph_spacing\":{\"unit\":\"px\",\"size\":16,\"sizes\":[]}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"3b6302b\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"4da9555\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>It is necessary to monitor the winding temperature (through pre-embedded PT100 sensors) and the top oil temperature (for oil-immersed type) in real time. Ensure that the temperature is controlled within the limits specified by our company even during overload. At the same time, the load current should also be monitored to ensure that it does not exceed the predetermined overload curve.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"d41fa9f\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"0fd938a\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>After the end of overload operation, the transformer is in a high-temperature state. It should continue to operate under no-load or light-load conditions for a period of time, and use its own cooling system (natural air cooling or oil circulation) to gradually reduce the temperature to a normal level, avoiding stress damage to the insulation material caused by rapid cooling and heating. For transformers with forced air cooling, the fans should be turned off with a delay.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"09a50ce\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"f9d6bbd\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>\\u2460 The basic maintenance items are similar (such as checking fasteners, cleaning the shell, and measuring insulation resistance), but there are key focuses.<\\\/p><p>\\u2461 Oil analysis (for oil-immersed type): Conduct 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data-tab-index=\\\"5\\\" role=\\\"tab\\\" tabindex=\\\"-1\\\" aria-controls=\\\"e-n-tab-content-649863465\\\" style=\\\"--n-tabs-title-order: 5;\\\">\\n\\t\\t\\t\\t\\t\\t<span class=\\\"e-n-tab-title-text\\\">\\n\\t\\t\\t\\tDiagram\\t\\t\\t<\\\/span>\\n\\t\\t<\\\/button>\\n\\t\\t\\t\\t<button id=\\\"e-n-tab-title-649863466\\\" class=\\\"e-n-tab-title\\\" aria-selected=\\\"false\\\" data-tab-index=\\\"6\\\" role=\\\"tab\\\" tabindex=\\\"-1\\\" aria-controls=\\\"e-n-tab-content-649863466\\\" style=\\\"--n-tabs-title-order: 6;\\\">\\n\\t\\t\\t\\t\\t\\t<span class=\\\"e-n-tab-title-text\\\">\\n\\t\\t\\t\\tFAQ\\t\\t\\t<\\\/span>\\n\\t\\t<\\\/button>\\n\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t<div class=\\\"e-n-tabs-content\\\">\\n\\t\\t\\t\\t<div id=\\\"e-n-tab-content-649863461\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863461\\\" data-tab-index=\\\"1\\\" style=\\\"--n-tabs-title-order: 1;\\\" class=\\\"e-active elementor-element elementor-element-63d4ba4 e-con-full e-flex e-con e-child\\\" data-id=\\\"63d4ba4\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-76c97e8 elementor-widget elementor-widget-heading\\\" data-id=\\\"76c97e8\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Brief Introduction<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t<div id=\\\"e-n-tab-content-649863462\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863462\\\" data-tab-index=\\\"2\\\" style=\\\"--n-tabs-title-order: 2;\\\" class=\\\" elementor-element elementor-element-2e2154e e-con-full e-flex e-con e-child\\\" data-id=\\\"2e2154e\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-0f27574 elementor-widget elementor-widget-heading\\\" data-id=\\\"0f27574\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Structural Features<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"eyJpZCI6ImYzMGIyMzIiLCJlbFR5cGUiOiJ3aWRnZXQiLCJzZXR0aW5ncyI6eyJlZGl0b3IiOiI8cD48c3Ryb25nPjxiPlx1MjE2MC4gUHJvZHVjdCBGZWF0dXJlczxcL2I+PFwvc3Ryb25nPjxcL3A+PHA+PHN0cm9uZz48Yj4xLjxcL2I+PFwvc3Ryb25nPjxzdHJvbmc+PGI+T3V0c3RhbmRpbmcgT3ZlcmxvYWQgQ2FwYWJpbGl0eTxcL2I+PFwvc3Ryb25nPjxcL3A+PHA+XHUyNDYwIEhpZ2gtb3ZlcmxvYWQgdHJhbnNmb3JtZXJzIGRvIG5vdCBzaW1wbHkgXCJ3aXRoc3RhbmRcIiBvdmVybG9hZDsgaW5zdGVhZCwgdGhlaXIgb3ZlcmxvYWQgY2FwYWJpbGl0eSBpcyBhY2N1cmF0ZWx5IHF1YW50aWZpZWQgdGhyb3VnaCBjYXJlZnVsIGRlc2lnbi48XC9wPjxwPlx1MjQ2MSBUeXBpY2FsIG92ZXJsb2FkIGN1cnZlOiBJdCBjYW4gdXN1YWxseSBvcGVyYXRlIHNhZmVseSBhdCAxLjUgdGltZXMgdGhlIHJhdGVkIGNhcGFjaXR5IGZvciA2IGhvdXJzOyBhdCAxLjc1IHRpbWVzIHRoZSByYXRlZCBjYXBhY2l0eSBmb3IgMyBob3VyczsgYW5kIGV2ZW4gYXQgMi4wIHRpbWVzIHRoZSByYXRlZCBjYXBhY2l0eSBmb3IgMSBob3VyIChzcGVjaWZpYyB2YWx1ZXMgdmFyeSBkZXBlbmRpbmcgb24gbWFudWZhY3R1cmVyIGRlc2lnbiBhbmQgc3RhbmRhcmRzKS48XC9wPjxwPlx1MjQ2MiBWYWx1ZTogVGhpcyBtZWFucyB1c2VycyBkbyBub3QgbmVlZCB0byBwdXJjaGFzZSBhIG11Y2ggbGFyZ2VyIG9yZGluYXJ5IHRyYW5zZm9ybWVyIGZvciBvY2Nhc2lvbmFsIHBlYWsgbG9hZHMsIHRodXMgc2F2aW5nIHNpZ25pZmljYW50IGluaXRpYWwgaW52ZXN0bWVudCwgaW5zdGFsbGF0aW9uIHNwYWNlLCBhbmQgZWxlY3RyaWNpdHkgY29zdHMgZnJvbSBuby1sb2FkIGxvc3NlcyBkdXJpbmcgZGFpbHkgbG93LWxvYWQgb3BlcmF0aW9uLjxcL3A+PHA+PHN0cm9uZz48Yj4yLjxcL2I+PFwvc3Ryb25nPjxzdHJvbmc+PGI+RXhjZWxsZW50IEhlYXQgRGlzc2lwYXRpb24gUGVyZm9ybWFuY2U8XC9iPjxcL3N0cm9uZz48XC9wPjxwPlx1MjQ2MCBIaWdoLW92ZXJsb2FkIHRyYW5zZm9ybWVycyBlbmhhbmNlIGhlYXQgZGlzc2lwYXRpb24gdGhyb3VnaCBtdWx0aXBsZSBtZXRob2RzOjxcL3A+PHA+T3B0aW1pemVkIGhlYXQgZGlzc2lwYXRpb24gc3RydWN0dXJlOiBBZG9wdCBjb3JydWdhdGVkIG9pbCB0YW5rcyAodG8gaW5jcmVhc2UgaGVhdCBkaXNzaXBhdGlvbiBhcmVhKSwgZW5sYXJnZWQgaGVhdCBzaW5rcywgb3IgYWRkaXRpb25hbCBoZWF0IGRpc3NpcGF0aW9uIHBpcGVzLiBTb21lIHByb2R1Y3RzIGFsc28gaGF2ZSBwcmVzZXQgaW50ZXJmYWNlcyBvciBkZXZpY2VzIGZvciBmb3JjZWQgYWlyIGNvb2xpbmcgKEFGKSwgd2hpY2ggc3RhcnQgZmFucyBkdXJpbmcgb3ZlcmxvYWQgdG8gc2lnbmlmaWNhbnRseSBpbXByb3ZlIGhlYXQgZGlzc2lwYXRpb24gY2FwYWNpdHkuPFwvcD48cD5cdTI0NjEgVXNlIG9mIGhpZ2ggdGhlcm1hbCBjb25kdWN0aXZpdHkgbWVkaWE6IE9pbC1pbW1lcnNlZCB0cmFuc2Zvcm1lcnMgb2Z0ZW4gdXNlIGhpZ2gtZmxhc2gtcG9pbnQgb2lsIG9yIG5hdHVyYWwgZXN0ZXIgaW5zdWxhdGluZyBvaWwgKHZlZ2V0YWJsZSBpbnN1bGF0aW5nIG9pbCkuIFRoZSBsYXR0ZXIgbm90IG9ubHkgaGFzIGEgaGlnaCBmbGFzaCBwb2ludCBhbmQgZ29vZCBmaXJlIHJlc2lzdGFuY2UgYnV0IGFsc28gaGFzIGJldHRlciBjb29saW5nIHBlcmZvcm1hbmNlIG9mIGl0cyBuYXR1cmFsIGVzdGVyIG1vbGVjdWxlcyB0aGFuIG1pbmVyYWwgb2lsLjxcL3A+PHA+PHN0cm9uZz48Yj4zLjxcL2I+PFwvc3Ryb25nPjxzdHJvbmc+PGI+SGlnaCBIZWF0LVJlc2lzdGFuY2UgQ2xhc3MgSW5zdWxhdGlvbiBTeXN0ZW08XC9iPjxcL3N0cm9uZz48XC9wPjxwPlx1MjQ2MCBIaWdoIHRlbXBlcmF0dXJlIGlzIHRoZSBlbmVteSBvZiBpbnN1bGF0aW9uIGFnaW5nLiBIaWdoLW92ZXJsb2FkIHRyYW5zZm9ybWVycyBlbnN1cmUgdGhlaXIgc2VydmljZSBsaWZlIGR1cmluZyBvdmVybG9hZCBieSBpbXByb3ZpbmcgdGhlIGhlYXQgcmVzaXN0YW5jZSBjbGFzcyBvZiBpbnN1bGF0aW9uIG1hdGVyaWFscy48XC9wPjxwPlx1MjQ2MSBNYXRlcmlhbCB1cGdyYWRlOiBXaW5kaW5nIGNvbmR1Y3RvcnMgdXNlIENsYXNzIEMgb3IgQ2xhc3MgSCBpbnN1bGF0aW9uIG1hdGVyaWFscyBzdWNoIGFzIE5PTUVYXHUwMGFlIHBhcGVyIGFuZCBwb2x5aW1pZGUgZmlsbSwgb3IgaGlnaCBoZWF0LXJlc2lzdGFudCBwb2x5ZXN0ZXIgZmliZXIgcGFwZXIuIFRoZSBpbnN1bGF0aW5nIHBhcGVyIG9mIG9pbC1pbW1lcnNlZCB0cmFuc2Zvcm1lcnMgdXN1YWxseSB1c2VzIGhpZ2gtZGVuc2l0eSBpbnN1bGF0aW5nIHBhcGVyLjxcL3A+PHA+XHUyNDYyIFRoZXJtYWwgbGlmZSBndWFyYW50ZWU6IEV2ZW4gaWYgdGhlIGhvdC1zcG90IHRlbXBlcmF0dXJlIG9mIHRoZSB3aW5kaW5nIHRlbXBvcmFyaWx5IHJlYWNoZXMgMTQwXHUyMTAzIG9yIGhpZ2hlciBkdXJpbmcgb3ZlcmxvYWQsIGl0cyBDbGFzcyBIIG9yIENsYXNzIEMgaW5zdWxhdGlvbiBzeXN0ZW0gY2FuIGZ1bGx5IHdpdGhzdGFuZCBpdC4gSW4gY29udHJhc3QsIG9yZGluYXJ5IENsYXNzIEEgaW5zdWxhdGlvbiAoMTA1XHUyMTAzKSB3aWxsIGFjY2VsZXJhdGUgYWdpbmcgdW50aWwgZGFtYWdlIGF0IHRoaXMgdGVtcGVyYXR1cmUuIFRoaXMgZW5zdXJlcyB0aGF0IHRoZSB0cmFuc2Zvcm1lciBjYW4gd2l0aHN0YW5kIHRob3VzYW5kcyBvZiBzaG9ydC10ZXJtIG92ZXJsb2FkcyB3aXRoaW4gYSAzMC15ZWFyIHNlcnZpY2UgbGlmZS48XC9wPjxwPjxzdHJvbmc+PGI+XHUyMTYxLiBQcm9kdWN0IEFkdmFudGFnZXM8XC9iPjxcL3N0cm9uZz48XC9wPjxwPjxzdHJvbmc+PGI+MS48XC9iPjxcL3N0cm9uZz48c3Ryb25nIHN0eWxlPVwiZm9udC1zaXplOiAxNnB4O1wiPjxiPkxvdyBMb3NzIGFuZCBIaWdoIEVuZXJneSBFZmZpY2llbmN5PFwvYj48XC9zdHJvbmc+PFwvcD48cD5cdTI0NjAgSGlnaCBvdmVybG9hZCBjYXBhYmlsaXR5IGRvZXMgbm90IG1lYW4gaGlnaCBlbmVyZ3kgY29uc3VtcHRpb24uIEV4Y2VsbGVudCBoaWdoLW92ZXJsb2FkIHRyYW5zZm9ybWVycyBhcmUgYWxzbyBlbmVyZ3ktc2F2aW5nIHByb2R1Y3RzLjxcL3A+PHA+XHUyNDYxIEFkdmFuY2VkIGNvcmUgbWF0ZXJpYWxzOiBIaWdoLXBlcm1lYWJpbGl0eSwgbG93LWxvc3MgaGlnaC1xdWFsaXR5IHNpbGljb24gc3RlZWwgc2hlZXRzIG9yIGFtb3JwaG91cyBhbGxveSBjb3JlcyBhcmUgZ2VuZXJhbGx5IHVzZWQsIHJlc3VsdGluZyBpbiBleHRyZW1lbHkgbG93IG5vLWxvYWQgbG9zcyAoUDApLiBUaGlzIGhhcyBhIHBhcnRpY3VsYXJseSBzaWduaWZpY2FudCBwb3dlci1zYXZpbmcgZWZmZWN0IGluIG9wZXJhdGluZyBzY2VuYXJpb3Mgd2l0aCBsb25nLXRlcm0gbGlnaHQgbG9hZHMgb3Igbm8tbG9hZCBjb25kaXRpb25zIChzdWNoIGFzIHJ1cmFsIHBvd2VyIGdyaWRzKS48XC9wPjxwPlx1MjQ2MiBDb21wbGlhbmNlIHdpdGggZW5lcmd5IGVmZmljaWVuY3kgc3RhbmRhcmRzOiBUaGV5IHVzdWFsbHkgbWVldCBvciBleGNlZWQgdGhlIG5hdGlvbmFsIGZpcnN0LWxldmVsIGVuZXJneSBlZmZpY2llbmN5IHN0YW5kYXJkLCBoZWxwaW5nIHVzZXJzIHJlZHVjZSBvcGVyYXRpbmcgY29zdHMuPFwvcD48cD4yLjxzdHJvbmcgc3R5bGU9XCJmb250LXNpemU6IDE2cHg7XCI+PGI+U3Ryb25nIFNob3J0LUNpcmN1aXQgV2l0aHN0YW5kIENhcGFiaWxpdHk8XC9iPjxcL3N0cm9uZz4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id=\\\"e-n-tab-content-649863463\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863463\\\" data-tab-index=\\\"3\\\" style=\\\"--n-tabs-title-order: 3;\\\" class=\\\" elementor-element elementor-element-764f307 e-con-full e-flex e-con e-child\\\" data-id=\\\"764f307\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-9872304 elementor-widget elementor-widget-heading\\\" data-id=\\\"9872304\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Product structure<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"{"id":"b1b2cc5","elType":"widget","settings":{"editor":"<p><strong><b>\u2160. Production Process<\/b><\/strong><\/p><p><b><\/b><strong><b>1.Cutting and Forming<\/b><\/strong><\/p><p>CNC precision shearing machines (with positioning accuracy of \u00b10.05mm) are used to cut silicon steel sheets to avoid burrs (\u22640.02mm) and reduce magnetic leakage loss caused by lamination gaps. Amorphous alloy cores are manufactured using a winding forming process, with the winding tension controlled at 50-80N to ensure uniform core density (\u22657.2g\/cm\u00b3).<\/p><p><b><\/b><strong><b>2.Stacking and Fastening<\/b><\/strong><\/p><p>Silicon steel sheets are stacked using a multi-stage step stacking method (seam misalignment \u22641\/3 of the sheet width) and fastened with insulating adhesive or through screws. The core stacking factor is \u22650.96 (for silicon steel sheets) or \u22650.88 (for amorphous alloys).<b><\/b><\/p><p><strong><b>3.<\/b><\/strong><strong><b>Winding Manufacturing: Dual Enhancement of Heat Dissipation and Mechanical Strength<\/b><\/strong><\/p><p><strong><b>\u2460 Winding Process\uff1a<\/b><\/strong>Low-voltage windings are manufactured using foil winding (copper foil thickness: 0.5-2mm, with insulating paper placed between layers) to increase the heat dissipation area; high-voltage windings are manufactured using continuous or \u00a0(interleaved) winding. CNC winding machines are used to ensure uniform winding tension (tension deviation \u22645%) to avoid local overheating caused by loose conductors.For high overload requirements, the windings adopt a segmented structure, with axial oil channels (for oil-immersed type, channel width: 8-12mm) or radial air channels (for dry-type, channel width: 5-8mm) to improve heat dissipation efficiency, and the air channel spacing error is \u2264\u00b10.5mm.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>General Assembly and Insulation Treatment Process<\/b><\/strong><\/p><p><strong><b>\u2460 Core Assembly:<\/b><\/strong>\u00a0Precise Positioning and Heat Dissipation Optimization<\/p><p><strong><b>\u2461 Core and Winding Assembly\uff1a<\/b><\/strong>CNC hoisting equipment (with positioning accuracy of \u00b11mm) is used to mount the windings on the core columns. The concentricity deviation of the high-voltage and low-voltage windings is \u22642mm to ensure uniform distribution of the leakage magnetic field. Shock-absorbing pads (rubber or elastic cardboard) are added between the core and the oil tank to reduce operating vibration and noise.<\/p><p><strong><b>\u2462 Heat Dissipation Structure Installation\uff1a<\/b><\/strong>Oil-immersed type: Corrugated oil tanks (corrugation height: 50-80mm, single-wave heat dissipation area \u22650.1m\u00b2) or finned radiators (fin spacing: 15-20mm) are configured according to the capacity. Large models are equipped with submersible oil pumps and air cooling devices (oil pump flow rate \u226550L\/min, fan air pressure \u2265200Pa) to ensure that the oil circulation speed meets the overload heat dissipation requirements.<\/p><p><strong><b>\u2463 Dry-type: <\/b><\/strong>Aluminum heat sinks or forced air cooling ducts are installed outside the windings. The gap error between the ducts and the windings is \u22641mm to ensure uniform air coverage.<\/p><p><strong><b>\u2464 Dry-Type Insulation Treatment\uff1a<\/b><\/strong>After the windings are cast and cured, surface grinding and insulation repair are performed to ensure no burrs or bubbles on the surface (bubble diameter \u22640.5mm, quantity \u22643 per m\u00b2). The entire surface is sprayed with anti-pollution flashover coating (such as PRTV coating, thickness: 0.3-0.5mm) to improve pollution resistance.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Special Reinforcement Process<\/b><\/strong><\/p><p><strong><b>\u2460 Short-Circuit Prevention and Mechanical Strength Enhancement\uff1a<\/b><\/strong>Rigid fixing structures (such as pull screws and clamps) are used between the windings, core, and oil tank. Finite element simulation verification (short-circuit force simulation \u226525 times the rated current) is conducted to ensure that the short-circuit withstand capability meets the standards.<\/p><p><strong>\u2461 The tap-changer adopts a vacuum interrupter or silver-tungsten alloy contacts\uff1a<\/strong>\u00a0with a contact pressure \u226550N, contact resistance \u226450\u03bc\u03a9, and a mechanical operation life \u22655000 times.<\/p><p><strong><b>\u2462 Full Sealing and Anti-Corrosion Process\uff1a<\/b><\/strong>Oil-immersed transformers can optionally adopt a fully sealed structure. The oil tank is welded using argon arc welding (weld reinforcement: 0-2mm, no pores or inclusions) and passes a 1.5-times rated pressure water pressure test (no leakage for 30 minutes).<\/p><p><strong><b>\u2463 The surface of outdoor oil tanks is derusted by sandblasting \uff1a<\/b><\/strong>\u00a0then sprayed with epoxy zinc-rich primer (thickness: 60-80\u03bcm) and weather-resistant topcoat (thickness: 40-60\u03bcm), and passes a salt spray test of \u22651000 hours without rusting.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Testing and Quality Inspection Process<\/b><\/strong><\/p><p><strong><b>\u2460 High-overload transformers must pass tests that far exceed conventional standards\uff1a<\/b><\/strong>\u00a0Key test items include: Overload temperature rise test: Simulate continuous operation under 1.5-times and 2-times rated loads, monitor the winding hot-spot temperature (Class F \u2264155\u2103, Class H \u2264180\u2103) and top oil temperature rise (\u226455K) to ensure that the temperature rise curve meets the design requirements.<\/p><p><strong><b>\u2461 Energy efficiency test:<\/b><\/strong>\u00a0No-load loss and load loss must meet the GB 20052 first-level energy efficiency standard, and the overload loss increment is \u22645% of the design value.<\/p>","_padding":{"unit":"px","top":"20","right":"0","bottom":"0","left":"0","isLinked":false},"paragraph_spacing":{"unit":"px","size":16,"sizes":[]},"__globals__":{"typography_typography":"globals\/typography?id=d06f507"}},"elements":[],"widgetType":"text-editor"}\\\"]\\t\\t<\\\/div>\\n\\t\\t<div id=\\\"e-n-tab-content-649863464\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863464\\\" data-tab-index=\\\"4\\\" style=\\\"--n-tabs-title-order: 4;\\\" class=\\\" elementor-element elementor-element-265fa39 e-con-full e-flex e-con e-child\\\" data-id=\\\"265fa39\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-73d198a elementor-widget elementor-widget-heading\\\" data-id=\\\"73d198a\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Specification<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-de4a9c0 elementor-widget elementor-widget-n-accordion\\\" data-id=\\\"de4a9c0\\\" data-element_type=\\\"widget\\\" data-settings=\\\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\\\" data-widget_type=\\\"nested-accordion.default\\\">\\n\\t\\t\\t\\t\\t\\t\\t<div class=\\\"e-n-accordion\\\" aria-label=\\\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\\\">\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2330\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"1\\\" tabindex=\\\"0\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2330\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 10kV High Overload Oil-Immersed Transformer <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2330\\\" class=\\\"elementor-element elementor-element-bf0179b e-con-full e-flex e-con e-child\\\" data-id=\\\"bf0179b\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-0f85fed elementor-widget elementor-widget-html\\\" data-id=\\\"0f85fed\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"html.default\\\">\\n\\t\\t\\t\\t\\t<style type=\\\"text\\\/css\\\">\\r\\n.table-responsive {\\r\\n  width: 100%;\\r\\n  overflow-x: auto; \\\/* \\u5c0f\\u5c4f\\u5e55\\u53ef\\u6a2a\\u5411\\u6eda\\u52a8 *\\\/\\r\\n}\\r\\n\\r\\n\\\/* \\u8868\\u683c\\u57fa\\u7840\\u6837\\u5f0f *\\\/\\r\\n.tg  {\\r\\n  border-collapse: collapse;\\r\\n  border-spacing: 0;\\r\\n  min-width: 800px; \\\/* \\u9632\\u6b62\\u8868\\u683c\\u88ab\\u538b\\u7f29\\u5f97\\u592a\\u5c0f *\\\/\\r\\n}\\r\\n\\r\\n.tg td, .tg th {\\r\\n  border-color: black;\\r\\n  border-style: solid;\\r\\n  border-width: 1px;\\r\\n  font-family: Arial, sans-serif;\\r\\n  font-size: 14px;\\r\\n  overflow: hidden;\\r\\n  padding: 10px 5px;\\r\\n  text-align: center;\\r\\n  vertical-align: top;\\r\\n  word-break: normal;\\r\\n}\\r\\n\\r\\n.tg th {\\r\\n  font-weight: normal;\\r\\n}\\r\\n\\r\\n.tg .tg-4fhu {\\r\\n  background-color: #FFF;\\r\\n  color: #212529;\\r\\n}\\r\\n\\r\\n\\\/* \\u5e73\\u677f\\u9002\\u914d 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class=\\\"tg\\\"><thead>\\r\\n  <tr>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">Rated Capacity<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">H.V.<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">L.V.<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">Connection symbol<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" colspan=\\\"3\\\">No-load loss(w)<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" colspan=\\\"3\\\">On-load loss(w)<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">Short circuit impedance<\\\/th>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <th class=\\\"tg-nrix\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S20<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S22<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S20<\\\/th>\\r\\n    <th class=\\\"tg-nrix\\\">S22<\\\/th>\\r\\n  <\\\/tr><\\\/thead>\\r\\n<tbody>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">30<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"19\\\">6<br><br><br>6.3<br><br><br>10<br><br><br>10.5<br><br><br>11<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"19\\\">0.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"19\\\">Dyn11<br><br><br><br><br><br><br><br>Yyn0<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">80<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">70<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">65<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">630\\\/660<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">505\\\/480<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">455\\\/430<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"12\\\">4<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">50<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">90<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">80<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">910\\\/870<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">730\\\/695<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">655\\\/625<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">63<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">110<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">90<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1090\\\/1040<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">870\\\/830<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">785\\\/745<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">80<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">130<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">115<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">105<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1310\\\/1250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1050\\\/1000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">945\\\/900<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">150<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">135<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">120<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1580\\\/1500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1265\\\/1200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1140\\\/1080<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">125<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">170<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">150<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">135<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1890\\\/1800<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1510\\\/1440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1360\\\/1295<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">160<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">180<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">160<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2310\\\/2200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1850\\\/1760<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1665\\\/1585<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">240<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">215<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">190<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2730\\\/2600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2185\\\/2080<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1970\\\/1870<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">290<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">260<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">230<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3200\\\/3050<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2560\\\/2440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2300\\\/2195<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">315<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">340<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">305<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">270<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3830\\\/3650<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3065\\\/2920<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2760\\\/2630<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">400<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">410<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">370<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">330<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4520\\\/4300<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3615\\\/3440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3250\\\/3095<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">480<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">430<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">385<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5410\\\/5150<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4330\\\/4120<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3900\\\/3710<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">630<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">570<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">510<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">460<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4960<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4460<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"5\\\">4.5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">800<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">700<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">630<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">560<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5400<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">830<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">745<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">665<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">10300<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">8240<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7415<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">970<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">870<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">780<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">12000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">9600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">8640<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1170<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1050<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">940<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">14500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">11600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">10440<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">2000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1360<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1225<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1085<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">18300<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">14640<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">13180<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"2\\\">5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">2500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1440<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1280<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">21200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">14840<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">13360<\\\/td>\\r\\n  <\\\/tr>\\r\\n<\\\/tbody><\\\/table>\\r\\n<\\\/thead>\\r\\n<tbody>\\r\\n  <!-- \\u4f60\\u539f\\u6765\\u7684 <tr> \\u6570\\u636e\\u4fdd\\u6301\\u4e0d\\u53d8\\uff0c\\u76f4\\u63a5\\u653e\\u8fd9\\u91cc -->\\r\\n  <!-- ... \\u539f\\u59cb\\u8868\\u683c\\u5185\\u5bb9 ... 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data-widget_type=\\\"image.default\\\">\\n\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t<img width=\\\"1024\\\" height=\\\"751\\\" src=\\\"https:\\\/\\\/www.ketetransformer.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/\\u6cb9\\u6d78\\u5f0f\\u53d8\\u538b\\u5668\\u56fe\\u7eb8-1024x751.png\\\" class=\\\"attachment-large size-large wp-image-4659\\\" alt=\\\"\\\" srcset=\\\"https:\\\/\\\/www.ketetransformer.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/\\u6cb9\\u6d78\\u5f0f\\u53d8\\u538b\\u5668\\u56fe\\u7eb8-1024x751.png 1024w, https:\\\/\\\/www.ketetransformer.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/\\u6cb9\\u6d78\\u5f0f\\u53d8\\u538b\\u5668\\u56fe\\u7eb8-300x220.png 300w, https:\\\/\\\/www.ketetransformer.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/\\u6cb9\\u6d78\\u5f0f\\u53d8\\u538b\\u5668\\u56fe\\u7eb8-768x564.png 768w, https:\\\/\\\/www.ketetransformer.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/\\u6cb9\\u6d78\\u5f0f\\u53d8\\u538b\\u5668\\u56fe\\u7eb8-600x440.png 600w, https:\\\/\\\/www.ketetransformer.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/\\u6cb9\\u6d78\\u5f0f\\u53d8\\u538b\\u5668\\u56fe\\u7eb8.png 1063w\\\" sizes=\\\"(max-width: 1024px) 100vw, 1024px\\\" \\\/>\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t<div id=\\\"e-n-tab-content-649863466\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863466\\\" data-tab-index=\\\"6\\\" style=\\\"--n-tabs-title-order: 6;\\\" class=\\\" elementor-element elementor-element-a681f0e e-con-full e-flex e-con e-child\\\" data-id=\\\"a681f0e\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-11bf213 elementor-widget elementor-widget-heading\\\" data-id=\\\"11bf213\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">FAQ<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-d080af3 elementor-widget elementor-widget-n-accordion\\\" data-id=\\\"d080af3\\\" data-element_type=\\\"widget\\\" data-settings=\\\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\\\" data-widget_type=\\\"nested-accordion.default\\\">\\n\\t\\t\\t\\t\\t\\t\\t<div class=\\\"e-n-accordion\\\" aria-label=\\\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\\\">\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2180\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"1\\\" tabindex=\\\"0\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2180\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 1.What is the difference between a high-overload transformer and an ordinary transformer? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2180\\\" class=\\\"elementor-element elementor-element-05eeb49 e-con-full e-flex e-con e-child\\\" data-id=\\\"05eeb49\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2181\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"2\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2181\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 2.Will \\\"overload\\\" shorten the service life of the transformer? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2181\\\" class=\\\"elementor-element elementor-element-9b6bfdb e-con-full e-flex e-con e-child\\\" data-id=\\\"9b6bfdb\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2182\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"3\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2182\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 3.Does my project need to use a high-overload transformer? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2182\\\" class=\\\"elementor-element elementor-element-eb6a4dc e-con-full e-flex e-con e-child\\\" data-id=\\\"eb6a4dc\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"eyJpZCI6IjVmMWNmNDUiLCJlbFR5cGUiOiJ3aWRnZXQiLCJzZXR0aW5ncyI6eyJlZGl0b3IiOiI8cD5cdTI0NjAgSXQgaXMgdmVyeSBzdWl0YWJsZSBpZiB5b3VyIGVsZWN0cmljYWwgbG9hZCBoYXMgdGhlIGZvbGxvd2luZyBjaGFyYWN0ZXJpc3RpY3M6TG93IGFubnVhbCBhdmVyYWdlIGxvYWQgcmF0ZSAoJmx0OzQwJSksIGJ1dCBleHRyZW1lbHkgaGlnaCBzaG9ydC10ZXJtIG9yIHNlYXNvbmFsIGxvYWRzLkxvYWRzIHdpdGggc2V2ZXJlIGltcGFjdCBvciBwZXJpb2RpYyBmbHVjdHVhdGlvbnMgKHN1Y2ggYXMgdGhlIHN0YXJ0LXVwIG9mIGFyYyBmdXJuYWNlcywgcm9sbGluZyBtaWxscywgYW5kIGVsZWN0cm9seXRpYyBjZWxscykuPFwvcD48cD5cdTI0NjEgSGF2aW5nIGNhcGFjaXR5IGV4cGFuc2lvbiBleHBlY3RhdGlvbnMgYnV0IHdhbnRpbmcgdG8gc2F2ZSBpbnZlc3RtZW50LCByZXBsYWNpbmcgYSBsYXJnZS1jYXBhY2l0eSBvcmRpbmFyeSB0cmFuc2Zvcm1lciB0aGF0IG1heSBiZSBuZWVkZWQgaW4gdGhlIGZ1dHVyZSB3aXRoIG9uZSBoaWdoLW92ZXJsb2FkIHRyYW5zZm9ybWVyLkxpbWl0ZWQgaW5zdGFsbGF0aW9uIHNwYWNlLCB1bmFibGUgdG8gYWNjb21tb2RhdGUgYSBsYXJnZXItY2FwYWNpdHkgdHJhbnNmb3JtZXIuPFwvcD4iLCJfcGFkZGluZyI6eyJ1bml0IjoicHgiLCJ0b3AiOiIyMCIsInJpZ2h0IjoiMCIsImJvdHRvbSI6IjAiLCJsZWZ0IjoiMCIsImlzTGlua2VkIjpmYWxzZX0sIl9fZ2xvYmFsc19fIjp7InR5cG9ncmFwaHlfdHlwb2dyYXBoeSI6Imdsb2JhbHNcL3R5cG9ncmFwaHk\\\/aWQ9ZDA2ZjUwNyJ9LCJwYXJhZ3JhcGhfc3BhY2luZyI6eyJ1bml0IjoicHgiLCJzaXplIjoxNiwic2l6ZXMiOltdfX0sImVsZW1lbnRzIjpbXSwid2lkZ2V0VHlwZSI6InRleHQtZWRpdG9yIn0=\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2183\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"4\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2183\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 4. How to select a suitable high-overload transformer? What are the main parameters to consider? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2183\\\" class=\\\"elementor-element elementor-element-8566f20 e-con-full e-flex e-con e-child\\\" data-id=\\\"8566f20\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2184\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"5\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2184\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 5. What are the most important monitoring indicators during the operation of a high-overload transformer? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2184\\\" class=\\\"elementor-element elementor-element-3b6302b e-con-full e-flex e-con e-child\\\" data-id=\\\"3b6302b\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2185\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"6\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2185\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 6. What should be noted after the end of high-overload operation? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2185\\\" class=\\\"elementor-element elementor-element-d41fa9f e-con-full e-flex e-con e-child\\\" data-id=\\\"d41fa9f\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2186\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"7\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2186\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 7. 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It is mainly used in scenarios with low annual average load rates but high short-term loads, helping to save significant equipment investment and electricity costs. 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