{"id":2081,"date":"2025-08-26T08:38:25","date_gmt":"2025-08-26T08:38:25","guid":{"rendered":"https:\/\/www.ketetransformer.com\/?post_type=product&#038;p=2081"},"modified":"2025-09-28T02:29:28","modified_gmt":"2025-09-28T02:29:28","slug":"2000kva-10kv-three-phase-oil-immersed","status":"publish","type":"product","link":"https:\/\/www.ketetransformer.com\/fr\/products\/2000kva-10kv-three-phase-oil-immersed\/","title":{"rendered":"Transformateur de distribution photovolta\u00efque triphas\u00e9 \u00e0 huile de 10 kV et 2 000 kVA"},"content":{"rendered":"<div data-elementor-type=\"product-post\" data-elementor-id=\"2081\" class=\"elementor elementor-2081\" 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=\"\u0412\u043a\u043b\u0430\u0434\u043a\u0438. \u041e\u0442\u043a\u0440\u044b\u0432\u0430\u0439\u0442\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043a\u043b\u0430\u0432\u0438\u0448 Enter \u0438\u043b\u0438 Space, \u0437\u0430\u043a\u0440\u044b\u0432\u0430\u0439\u0442\u0435 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e Escape \u0438 \u043f\u0435\u0440\u0435\u043c\u0435\u0449\u0430\u0439\u0442\u0435\u0441\u044c \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043a\u043b\u0430\u0432\u0438\u0448 \u0441\u043e \u0441\u0442\u0440\u0435\u043b\u043a\u0430\u043c\u0438.\" 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>1. Normes applicables aux cadres dirigeants<\/strong><\/p><p>\u00a0Les transformateurs doivent \u00eatre conformes \u00e0 plusieurs normes fondamentales, tant en France qu'\u00e0 l'\u00e9tranger :<\/p><p>Normes : CEI 60076 (norme internationale relative aux transformateurs de puissance), UL 1561 (certification des transformateurs \u00e0 sec en Am\u00e9rique du Nord), EN 50438 (norme europ\u00e9enne relative aux installations photovolta\u00efques).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Niveau de tension<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Tension d'entr\u00e9e<\/b><\/strong>: G\u00e9n\u00e9ralement triphas\u00e9, 800 V, 690 V (pour les installations photovolta\u00efques d\u00e9centralis\u00e9es) ; pour les centrales \u00e9lectriques \u00e0 grande \u00e9chelle, la tension peut atteindre 35 kV, 110 kV.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Tension de sortie<\/b><\/strong>:<\/p><p>C\u00f4t\u00e9 basse tension : 400 V, 380 V (pour le raccordement au r\u00e9seau ou l'alimentation des charges).<\/p><p>C\u00f4t\u00e9 haute tension : 35 kV (pour les transformateurs \u00e9l\u00e9vateurs de type \u00ab box \u00bb), 110 kV (pour les transformateurs principaux).<\/p><p>M\u00e9thode de r\u00e9gulation de tension<\/p><p>R\u00e9gulation de la tension \u00e0 vide<\/p><p>R\u00e9gulation de tension en charge<\/p><p>Gamme de prises de haute tension<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Gamme classique<\/b><\/strong>:<\/p><p>\u00b15% (\u00b12\u00d72,5% pour les transformateurs de 10 kV).<\/p><p>\u00b110% (\u00b18\u00d71,25% pour les transformateurs principaux de 35 kV).<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Sc\u00e9narios distribu\u00e9s<\/b><\/strong>: 50 kVA ~ 2 500 kVA<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Centrales \u00e9lectriques centralis\u00e9es<\/b><\/strong>: 1 000 kVA ~ 80 000 kVA (transformateurs principaux \u00e9l\u00e9vateurs de 110 kV).<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Transformateurs combin\u00e9s de type \u00ab box \u00bb<\/b><\/strong>: La puissance nominale varie g\u00e9n\u00e9ralement entre 1 000 kVA et 2 500 kVA, ce qui permet le fonctionnement en parall\u00e8le de plusieurs unit\u00e9s pour augmenter la puissance. Fr\u00e9quence<\/p><p>7.<strong><b>La fr\u00e9quence standard<\/b><\/strong>\u00a0est de 50 Hz ou 60 Hz.<\/p><p><strong><b>8.<\/b><\/strong><strong><b>Groupe de connexion<\/b><\/strong><\/p><p>\u2460Dyn11 : Mise \u00e0 la terre du point neutre du c\u00f4t\u00e9 basse tension<\/p><p>\u2461YNd11 : Mise \u00e0 la terre du point neutre du c\u00f4t\u00e9 haute tension<\/p><p><strong><b>9.<\/b><\/strong><strong><b>Imp\u00e9dance Tension<\/b><\/strong><\/p><p>\u2460 C\u00f4t\u00e9 basse tension : 4% ~ 6% (transformateurs convertissant 800 V en 400 V).<\/p><p>\u2461 C\u00f4t\u00e9 haute tension : 10,5% ~ 14% (transformateurs principaux de 110 kV).<\/p><p><strong><b>10.<\/b><\/strong><strong><b>M\u00e9thode de refroidissement<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Transformateurs \u00e0 sec<\/b><\/strong>:<\/p><p>Refroidissement par air naturel (AN) : Convient aux applications en int\u00e9rieur ou \u00e0 faible charge (toitures industrielles et commerciales).<\/p><p>Refroidissement par air forc\u00e9 (AF) : am\u00e9liore la dissipation thermique gr\u00e2ce \u00e0 des ventilateurs et permet de supporter des surcharges de courte dur\u00e9e (transformateurs Instand).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Transformateurs \u00e0 huile<\/b><\/strong>:<\/p><p>ONAN (refroidissement naturel par immersion dans l'huile) : le choix id\u00e9al pour les grandes centrales \u00e9lectriques en ext\u00e9rieur (transformateurs de type caisson ZGS-Z.G-1000).<\/p><p><strong><b>11.<\/b><\/strong><strong><b>Classe de protection<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Sc\u00e9narios en ext\u00e9rieur<\/b><\/strong>: IP54 (protection contre la poussi\u00e8re et l'eau) ou IP65 (protection contre les projections d'eau)<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Sc\u00e9narios en int\u00e9rieur<\/b><\/strong>: IP20 (protection de base), adapt\u00e9 aux environnements exempts de poussi\u00e8re.<\/p><p><strong><b>12.<\/b><\/strong><strong><b>Classe d'isolation<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Isolation de classe H (r\u00e9sistance \u00e0 la temp\u00e9rature : 180 \u00b0C)<\/b><\/strong>: Le choix le plus courant pour les transformateurs \u00e0 sec.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Isolation de classe A (r\u00e9sistance \u00e0 la temp\u00e9rature : 105 \u00b0C)<\/b><\/strong>: Couramment utilis\u00e9s dans les transformateurs \u00e0 huile destin\u00e9s \u00e0 des environnements particuliers ; des mat\u00e9riaux isolants r\u00e9sistants \u00e0 l'humidit\u00e9 sont n\u00e9cessaires dans les zones \u00e0 forte humidit\u00e9.<\/p><p><strong><b>II. Conditions d'exploitation<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Temp\u00e9rature ambiante<\/b><\/strong>: -40 \u00b0C \u00e0 +45 \u00b0C (les transformateurs de type alpin peuvent d\u00e9marrer \u00e0 -50 \u00b0C).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Altitude<\/b><\/strong>: Mod\u00e8les standard \u2264 1 000 m ; les mod\u00e8les destin\u00e9s \u00e0 de hautes altitudes (au-del\u00e0 de 3 000 m) n\u00e9cessitent une isolation renforc\u00e9e.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Exigences en mati\u00e8re d'humidit\u00e9<\/b><\/strong>: Humidit\u00e9 moyenne journali\u00e8re \u2264 95%, humidit\u00e9 moyenne mensuelle \u2264 90%.<\/p><p><strong><b>\u2162. Types d'\u00e9preuves<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Essais de type<\/b><\/strong><\/p><p>Essai d'\u00e9l\u00e9vation de temp\u00e9rature, essai de r\u00e9sistance aux courts-circuits, essai de d\u00e9charges partielles (conform\u00e9ment \u00e0 la norme CEI 60076).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Examens de routine<\/b><\/strong><\/p><p>Essai de r\u00e9sistance d'isolement, v\u00e9rification du rapport de transformation et de la polarit\u00e9, mesure de la r\u00e9sistance en courant continu des enroulements.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Tests sp\u00e9cifiques<\/b><\/strong><\/p><p>Essai d'impulsion de foudre (forme d'onde 1,2\/50 \u03bcs), essai de tenue \u00e0 la tension induite de longue dur\u00e9e (avec d\u00e9tection des d\u00e9charges partielles).<\/p><p><strong><b>\u2163. Contr\u00f4le des composants<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Contr\u00f4le du bobinage<\/b><\/strong><\/p><p>L'analyse de r\u00e9ponse en fr\u00e9quence (FRA) sert \u00e0 d\u00e9tecter les d\u00e9formations et \u00e0 garantir la r\u00e9sistance aux courts-circuits.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Inspection du noyau<\/b><\/strong><\/p><p>Mesure des pertes \u00e0 vide et du courant d'excitation afin de v\u00e9rifier la qualit\u00e9 des t\u00f4les d'acier au silicium.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Inspection des bagues<\/b><\/strong><\/p><p>Essais de perte di\u00e9lectrique et de capacit\u00e9 visant \u00e0 d\u00e9tecter les d\u00e9fauts d'isolation.<\/p><p><strong><b>\u2164. Types de certification<\/b><\/strong><\/p><p><strong><b>Certifications internationales<\/b><\/strong><\/p><p>Certification CE (acc\u00e8s au march\u00e9 europ\u00e9en), certification UL (Am\u00e9rique du Nord), certification CSA (Canada).<\/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<\/b><\/strong><strong><b>. Caract\u00e9ristiques du produit<\/b><\/strong><\/p><p>Conception de base ax\u00e9e sur le rendement \u00e9lev\u00e9 et les \u00e9conomies d'\u00e9nergie<\/p><p><strong><b>1.<\/b><\/strong><strong><b>Innovation en mati\u00e8re de mat\u00e9riaux<\/b><\/strong><\/p><p>Des noyaux en alliage amorphe (transformateurs tridimensionnels amorphes d'Ankang Shaanbian) sont utilis\u00e9s, ce qui permet de r\u00e9duire les pertes \u00e0 vide de 60%-80% par rapport aux t\u00f4les d'acier au silicium traditionnelles, avec des \u00e9conomies d'\u00e9nergie annuelles pouvant atteindre 80 000 kWh (calcul\u00e9es sur la base de 1 000 heures de fonctionnement). Les noyaux en alliage nanocristallin, associ\u00e9s \u00e0 la technologie des joints en gradins, r\u00e9duisent les pertes par hyst\u00e9r\u00e9sis de 30%, permettant d'atteindre un rendement de conversion pouvant aller jusqu'\u00e0 98,7%, ce qui d\u00e9passe largement les normes nationales.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Optimisation dynamique de l'efficacit\u00e9 \u00e9nerg\u00e9tique<\/b><\/strong><\/p><p>Le syst\u00e8me intelligent de r\u00e9gulation de la temp\u00e9rature ajuste automatiquement la vitesse du ventilateur en fonction de la charge, r\u00e9duisant ainsi les pertes li\u00e9es \u00e0 la charge de 15%. Les noyaux en alliage nanocristallin conservent un rendement \u00e9lev\u00e9 m\u00eame \u00e0 faible charge, s'adaptant ainsi aux caract\u00e9ristiques de production intermittente des installations photovolta\u00efques. Grande adaptabilit\u00e9 et r\u00e9gulation pr\u00e9cise<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Compatibilit\u00e9 de tension<\/b><\/strong><\/p><p>La plage d'entr\u00e9e couvre des tensions distribu\u00e9es telles que 690 V et 800 V, tandis que la sortie prend en charge le raccordement au r\u00e9seau basse tension de 380 V et 400 V, ainsi que le raccordement au r\u00e9seau haute tension de 35 kV et 110 kV.La technologie de compensation dynamique contr\u00f4le les fluctuations de tension dans une plage de \u00b10,51 TP6T, am\u00e9liorant ainsi la stabilit\u00e9 de 601 TP6T par rapport aux \u00e9quipements traditionnels.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Fonctionnement \u00e0 large bande<\/b><\/strong><\/p><p>La fr\u00e9quence standard est de 50\/60 Hz, avec une tol\u00e9rance de \u00b12% ; des mod\u00e8les sp\u00e9ciaux peuvent fonctionner dans une large plage de fr\u00e9quences comprise entre 45 et 65 Hz, ce qui permet de s\u2019adapter \u00e0 des sc\u00e9narios de compl\u00e9mentarit\u00e9 \u00e9nerg\u00e9tique, tels que l\u2019\u00e9nergie \u00e9olienne et le stockage d\u2019\u00e9nergie. Haute fiabilit\u00e9 et adaptabilit\u00e9 environnementale<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Syst\u00e8me de protection multiple<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Isolation et protection<\/b><\/strong>: L'isolation de classe H (r\u00e9sistance \u00e0 la temp\u00e9rature : 180 \u00b0C), associ\u00e9e \u00e0 un indice de protection IP54\/IP65, garantit un fonctionnement stable dans une large plage de temp\u00e9ratures allant de -40 \u00b0C \u00e0 +55 \u00b0C.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Conception ax\u00e9e sur la r\u00e9sistance \u00e0 la corrosion<\/b><\/strong>: Rev\u00eatement en alliage de zinc-nickel + peinture fluorocarbon\u00e9e appliqu\u00e9e par pulv\u00e9risation (essai au brouillard salin \u2265 1 500 heures), adapt\u00e9 aux environnements c\u00f4tiers soumis \u00e0 un fort brouillard salin et aux environnements d\u00e9sertiques tr\u00e8s poussi\u00e9reux.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>R\u00e9sistance aux courts-circuits et aux vibrations<\/b><\/strong><\/p><p>Les enroulements sont r\u00e9alis\u00e9s \u00e0 l'aide d'une technologie de liaison en fibre de carbone pr\u00e9contrainte, capable de r\u00e9sister \u00e0 une acc\u00e9l\u00e9ration due aux vibrations de 5 g. L'imp\u00e9dance de court-circuit est maintenue \u00e0 4,51 TP6T, et le courant de court-circuit admissible atteint 20 kA (pendant 4 secondes).<\/p><p><strong><b>\u2161<\/b><\/strong><strong><b>. Avantages du produit<\/b><\/strong><\/p><p><strong>1. R\u00e9sistance aux harmoniques et optimisation de la qualit\u00e9 de l'\u00e9nergie<\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Technologie de suppression des harmoniques<\/b><\/strong><\/p><p>Une conception \u00e0 double blindage (blindage \u00e9lectrostatique par feuille de cuivre + couche de blindage magn\u00e9tique) et une disposition en \u00e9chelons des enroulements sont utilis\u00e9es pour maintenir la distorsion harmonique totale (THD) dans les limites de 1,8%-3%, ce qui d\u00e9passe largement les normes GB\/T 14549 et IEEE 519.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Gestion des composants CC<\/b><\/strong><\/p><p>Les noyaux sont recouverts de rubans nanocristallins afin de supprimer les harmoniques de commutation sup\u00e9rieures \u00e0 20 kHz. Les enroulements b\u00e9n\u00e9ficient de la technologie VPI (impr\u00e9gnation sous vide et sous pression) pour am\u00e9liorer la r\u00e9sistance \u00e0 la magn\u00e9tisation par polarisation en courant continu et \u00e9viter les interf\u00e9rences de bruit \u00e0 haute fr\u00e9quence provenant des onduleurs. Conception modulaire et adapt\u00e9e \u00e0 chaque sc\u00e9nario<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Configuration structurelle flexible<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Transformateurs \u00e0 sec<\/b><\/strong>: De petite taille, ne n\u00e9cessitant aucun entretien, adapt\u00e9 aux toitures industrielles et commerciales (Instand SG-50KVA).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Transformateurs \u00e0 huile<\/b><\/strong>: Excellentes performances de dissipation thermique, adapt\u00e9es aux grandes centrales \u00e9lectriques de 110 kV (transformateurs principaux SZ11).<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Transformateurs combin\u00e9s de type \u00ab box \u00bb<\/b><\/strong>: Int\u00e9grer les transformateurs, les commutateurs et les dispositifs de protection, ce qui permet de r\u00e9duire la surface au sol de 30% et de ramener la dur\u00e9e des travaux \u00e0 3 jours.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Personnalisation pour des cas particuliers<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Type \u00ab haute altitude \u00bb<\/b><\/strong>: Conception avec isolation renforc\u00e9e, adapt\u00e9e aux plateaux situ\u00e9s \u00e0 plus de 3 000 m\u00e8tres d'altitude.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Type alpin<\/b><\/strong>: Capable de d\u00e9marrer \u00e0 -50 \u00b0C, \u00e9quip\u00e9 d'un dispositif de chauffage du r\u00e9servoir d'huile.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Type compl\u00e9mentaire agriculture-photovolta\u00efque<\/b><\/strong>: Faible niveau sonore (\u2264 55 dB), r\u00e9sistance \u00e0 l'humidit\u00e9 et \u00e0 la condensation, sans nuire \u00e0 la croissance des poissons.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Certifications en mati\u00e8re de s\u00e9curit\u00e9 et d'environnement<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Conformit\u00e9 internationale<\/b><\/strong>: Certifi\u00e9 CE, UL, CEI 61378, etc., conforme \u00e0 la norme europ\u00e9enne VDE-AR-N 4105 relative au raccordement au r\u00e9seau basse tension et \u00e0 la certification chinoise PCCC, garantissant ainsi l'acc\u00e8s aux march\u00e9s mondiaux.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Conception durable<\/b><\/strong>: Les alliages amorphes sont recyclables, ce qui permet de r\u00e9duire les pertes de production de 20% ; leur conception modulaire facilite le remplacement des composants, limitant ainsi la production de d\u00e9chets \u00e9lectroniques. Par exemple, apr\u00e8s avoir adopt\u00e9 les transformateurs Zhuoerfan, une usine automobile r\u00e9duit ses \u00e9missions de dioxyde de carbone de 1 200 tonnes par an, contribuant ainsi \u00e0 une production respectueuse de l'environnement.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Faible niveau sonore et respect de l'environnement<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Fonctionnement silencieux<\/b><\/strong>: La conception optimis\u00e9e du circuit magn\u00e9tique et du syst\u00e8me de refroidissement permet de maintenir le niveau sonore entre 30 et 55 dB, r\u00e9pondant ainsi aux exigences des environnements sensibles au bruit, tels que les zones r\u00e9sidentielles et les h\u00f4pitaux. Par exemple, les transformateurs compl\u00e9mentaires \u00ab p\u00eache-photovolta\u00efque \u00bb r\u00e9duisent le bruit en dessous du seuil tol\u00e9r\u00e9 par les \u00e9quipements aquacoles gr\u00e2ce \u00e0 une structure de dissipation thermique en nid d\u2019abeille.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Adaptabilit\u00e9 \u00e9cologique<\/b><\/strong>: La r\u00e9sistance au feu est conforme \u00e0 la norme UL94 V-0, et des mat\u00e9riaux d'isolation sans halog\u00e8ne sont utilis\u00e9s afin d'\u00e9viter toute pollution des sols et des ressources en eau ; le design s'int\u00e8gre parfaitement \u00e0 l'environnement, ce qui rend cette solution adapt\u00e9e aux zones \u00e9cologiquement sensibles, telles que les projets combinant agriculture et \u00e9nergie photovolta\u00efque ou les sites touristiques.<\/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><strong style=\"font-size: 16px;\"><b>1. Normes de s\u00e9lection des mat\u00e9riaux de base<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Mat\u00e9riaux de base<\/b><\/strong>: Les alliages amorphes (s\u00e9rie Fe-Si-B, \u00e9paisseur 0,02-0,03 mm) ou les alliages nanocristallins (rubans nanocristallins, densit\u00e9 de flux magn\u00e9tique \u00e0 saturation \u2265 1,8 T) sont privil\u00e9gi\u00e9s ; ceux-ci doivent respecter l\u2019exigence d\u2019une perte \u00e0 vide \u2264 0,1 W\/kg (50 Hz) ; les t\u00f4les d\u2019acier au silicium traditionnelles utilisent de l\u2019acier au silicium orient\u00e9 \u00e0 haute induction magn\u00e9tique, tel que le 30Q130, avec une perte dans le fer \u2264 1,3 W\/kg.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Conducteurs d'enroulement<\/b><\/strong>: On utilise des fils de cuivre sans oxyg\u00e8ne de haute puret\u00e9 (teneur en oxyg\u00e8ne \u2264 0,0031 TP6T) ou des feuilles de cuivre (\u00e9paisseur comprise entre 0,5 et 3 mm), pr\u00e9sentant une conductivit\u00e9 \u00e9lectrique \u2265 981 TP6T IACS et une r\u00e9sistance \u00e0 la traction \u2265 300 MPa ; pour des cas particuliers (par exemple, des environnements hautement corrosifs), des fils de cuivre \u00e9tam\u00e9s ou des fils en alliage d'aluminium-magn\u00e9sium peuvent \u00eatre utilis\u00e9s (avec un traitement anticorrosion adapt\u00e9).<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Mat\u00e9riaux isolants<\/b><\/strong>: Les mat\u00e9riaux pr\u00e9sentant une r\u00e9sistance \u00e0 la temp\u00e9rature \u2265 180 \u00b0C sont s\u00e9lectionn\u00e9s en fonction de leur classe d'isolation (classe H ou classe C), tels que le papier Nomex, le film de polyimide et les panneaux en tissu de verre \u00e9poxy, qui doivent \u00eatre conformes \u00e0 la norme UL94 V-0 en mati\u00e8re de r\u00e9sistance au feu et pr\u00e9senter des propri\u00e9t\u00e9s de r\u00e9sistance aux UV et de r\u00e9sistance au vieillissement (absence de fissuration apr\u00e8s un essai de vieillissement acc\u00e9l\u00e9r\u00e9 de \u2265 1 000 heures).<\/p><p><strong>2<\/strong>.<strong style=\"font-size: 16px;\"><b>Technologie de pr\u00e9traitement<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Pr\u00e9traitement des conducteurs<\/b><\/strong>: Les fils et feuilles de cuivre sont recuits dans un four de recuit en continu (temp\u00e9rature : 400-500 \u2103, atmosph\u00e8re d'azote) afin d'\u00e9liminer les contraintes et d'am\u00e9liorer la ductilit\u00e9 ; la surface est phosphat\u00e9e (pour former un film d'oxyde) ou \u00e9tam\u00e9e (\u00e9paisseur de 5 \u00e0 10 \u03bcm) afin d'am\u00e9liorer l'adh\u00e9rence \u00e0 la couche isolante.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Pr\u00e9traitement des mat\u00e9riaux isolants<\/b><\/strong>: Le papier ou film isolant est s\u00e9ch\u00e9 sous vide (80-100 \u2103, degr\u00e9 de vide \u2264 10 Pa) afin d'\u00e9liminer l'humidit\u00e9 (taux d'humidit\u00e9 \u2264 0,5%) ; le tissu en fibre de verre doit \u00eatre pr\u00e9-impr\u00e9gn\u00e9 de colle (teneur en r\u00e9sine \u00e9poxy de 30 \u00e0 401 TP6T) afin de garantir un durcissement uniforme lors des \u00e9tapes suivantes.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Pr\u00e9traitement des mat\u00e9riaux auxiliaires<\/b><\/strong>: Les profil\u00e9s en aluminium (radiateurs) utilis\u00e9s dans le syst\u00e8me de refroidissement sont soumis \u00e0 une anodisation (\u00e9paisseur du film \u2265 15 \u03bcm) ou \u00e0 un rev\u00eatement par pulv\u00e9risation de fluorocarbone (\u00e9paisseur de 50 \u00e0 80 \u03bcm) et satisfont \u00e0 un essai au brouillard salin d'une dur\u00e9e \u2265 1 000 heures ; les t\u00f4les d'acier du r\u00e9servoir d'huile (Q235B) sont d\u00e9rouill\u00e9es par sablage (niveau Sa2,5) afin d'am\u00e9liorer l'adh\u00e9rence du film de peinture.<\/p><p><strong>3.<\/strong><strong style=\"font-size: 16px;\"><b>Technologie de fabrication de base<\/b><\/strong><\/p><p>Le noyau est le circuit magn\u00e9tique du transformateur photovolta\u00efque, et sa technologie a une incidence directe sur les pertes \u00e0 vide et le bruit. Un usinage de haute pr\u00e9cision est n\u00e9cessaire pour obtenir de faibles pertes et une perm\u00e9abilit\u00e9 magn\u00e9tique \u00e9lev\u00e9e.<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>D\u00e9coupe au carottage<\/b><\/strong>: On utilise des machines de d\u00e9coupe laser \u00e0 commande num\u00e9rique (pr\u00e9cision \u00b10,05 mm) ou des presses \u00e0 poin\u00e7onner \u00e0 grande vitesse (vitesse de poin\u00e7onnage \u2265 300 coups\/minute) pour d\u00e9couper les t\u00f4les d\u2019acier au silicium\/rubans amorphes en t\u00f4les \u00e0 gradins ou biseaut\u00e9es (angle de biseau de 45\u00b0) selon les dimensions pr\u00e9vues, ce qui r\u00e9duit les fuites magn\u00e9tiques au niveau des joints.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Traitement de recuit<\/b><\/strong>: Les noyaux en t\u00f4le d'acier au silicium sont soumis \u00e0 un recuit \u00e0 haute temp\u00e9rature (750-800 \u00b0C, sous atmosph\u00e8re d'azote, maintien \u00e0 temp\u00e9rature pendant 4 \u00e0 6 heures) afin d'\u00e9liminer les contraintes de fabrication et d'am\u00e9liorer la densit\u00e9 de flux magn\u00e9tique ; les noyaux en alliage amorphe n\u00e9cessitent un recuit \u00e0 basse temp\u00e9rature (200-250 \u00b0C, sous vide) afin d\u2019\u00e9viter tout d\u00e9faut de cristallisation.<\/p><p><strong>4.<\/strong><strong style=\"font-size: 16px;\"><b>Technologie de fabrication des bobines<\/b><\/strong><\/p><p>L'enroulement est au c\u0153ur de la conversion de courant ; il doit r\u00e9pondre \u00e0 des exigences de haute isolation, de faibles pertes et de r\u00e9sistance aux courts-circuits. Cette technologie met l'accent sur la pr\u00e9cision de l'enroulement et la fiabilit\u00e9 de l'isolation.<\/p><p><strong>5.<\/strong><strong style=\"font-size: 16px;\"><b>Technologie d'int\u00e9gration des syst\u00e8mes d'isolation et de refroidissement<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Transformateurs \u00e0 huile<\/b><\/strong>: Une fois le noyau plac\u00e9 dans le r\u00e9servoir d'huile, on injecte de l'huile isolante (huile pour transformateur 25# ou 45#), puis on proc\u00e8de \u00e0 un d\u00e9gazage sous vide (degr\u00e9 de vide \u2264 1 Pa, dur\u00e9e de d\u00e9gazage : 8 \u00e0 12 heures), avec une teneur en humidit\u00e9 \u2264 10 ppm et un facteur de perte di\u00e9lectrique (\u00e0 90 \u00b0C) \u2264 0,005 ; la paroi int\u00e9rieure du r\u00e9servoir d\u2019huile est recouverte d\u2019un appr\u00eat r\u00e9sistant \u00e0 l\u2019huile, et la paroi ext\u00e9rieure est recouverte d\u2019une peinture de protection contre le soleil et la corrosion (\u00e9paisseur \u2265 80 \u03bcm).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Transformateurs \u00e0 sec<\/b><\/strong>: La surface du noyau est recouverte d'une peinture isolante de protection (classe H, \u00e9paisseur de 0,1 \u00e0 0,2 mm) ; les pi\u00e8ces cl\u00e9s (par exemple, les jonctions des bornes) sont scell\u00e9es \u00e0 l'aide d'un compos\u00e9 de moulage isolant ; et la r\u00e9sistance d'isolement globale est \u2265 1 000 M\u03a9 (\u00e0 25 \u00b0C).<\/p><p><strong>6<\/strong>.<strong style=\"font-size: 16px;\"><b>Technologie d'int\u00e9gration intelligente des composants<\/b><\/strong><\/p><p>Les transformateurs photovolta\u00efques doivent permettre la surveillance de leur \u00e9tat, et l'int\u00e9gration de composants intelligents doit garantir la pr\u00e9cision des signaux et une bonne protection contre les interf\u00e9rences.<\/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 \u00e9lectrique de distribution triphas\u00e9 \u00e0 huile de 10 kV pour production d'\u00e9nergie photovolta\u00efque de 2 000 kVA <\/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. Quel est le principe de fonctionnement d'un transformateur photovolta\u00efque ? <\/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>Les transformateurs photovolta\u00efques sont principalement utilis\u00e9s dans les syst\u00e8mes de production d'\u00e9nergie photovolta\u00efque pour \u00e9l\u00e9vier la tension du courant continu basse tension g\u00e9n\u00e9r\u00e9 par les modules photovolta\u00efques (apr\u00e8s avoir \u00e9t\u00e9 converti en courant alternatif basse tension par un onduleur) \u00e0 un niveau de tension adapt\u00e9 au raccordement au r\u00e9seau. Ils fonctionnent selon le principe de l\u2019induction \u00e9lectromagn\u00e9tique : un courant alternatif traverse l\u2019enroulement primaire pour g\u00e9n\u00e9rer un flux magn\u00e9tique alternatif \u00e0 travers un circuit magn\u00e9tique ferm\u00e9 form\u00e9 par le noyau. Ce flux magn\u00e9tique traverse l\u2019enroulement secondaire, et une force \u00e9lectromotrice est induite dans ce dernier conform\u00e9ment \u00e0 la loi de Faraday sur l\u2019induction \u00e9lectromagn\u00e9tique, ce qui permet la conversion de tension. Par exemple, un transformateur \u00e9l\u00e9vateur photovolta\u00efque de type \u00ab box \u00bb courant de 10 kV \u00e9l\u00e8ve la tension de sortie CA basse tension de 0,4 kV fournie par l\u2019onduleur \u00e0 10 kV en vue du raccordement au r\u00e9seau.<\/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. Comment choisir un transformateur photovolta\u00efque d'une puissance adapt\u00e9e ? <\/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>Le choix doit tenir compte de mani\u00e8re globale de la taille du parc photovolta\u00efque, de la puissance nominale de l'onduleur et des caract\u00e9ristiques de charge en conditions r\u00e9elles d'exploitation. Il convient tout d'abord de d\u00e9terminer la puissance de sortie maximale du parc photovolta\u00efque. En r\u00e8gle g\u00e9n\u00e9rale, la puissance nominale de l'onduleur correspond \u00e0 celle du parc photovolta\u00efque, et la capacit\u00e9 du transformateur doit \u00eatre l\u00e9g\u00e8rement sup\u00e9rieure \u00e0 la puissance nominale de sortie de l'onduleur. Par exemple, pour une centrale photovolta\u00efque de 500 kW, l\u2019onduleur peut \u00eatre configur\u00e9 \u00e0 500 kW, et il est possible de choisir un transformateur d\u2019une capacit\u00e9 comprise entre 500 et 630 kVA. Parall\u00e8lement, il convient de pr\u00e9voir une certaine marge afin de faire face aux fluctuations de puissance caus\u00e9es par des facteurs tels que les variations de l'ensoleillement, garantissant ainsi que le transformateur puisse fonctionner de mani\u00e8re stable sans surcharge dans diverses conditions de fonctionnement.<\/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. Quelles sont les pannes courantes des transformateurs photovolta\u00efques et comment y rem\u00e9dier ? <\/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 <strong><b>D\u00e9fauts d'isolation<\/b><\/strong>: Une exposition prolong\u00e9e \u00e0 des environnements ext\u00e9rieurs complexes entra\u00eene une \u00e9rosion due \u00e0 l'humidit\u00e9, \u00e0 la poussi\u00e8re et aux polluants, provoquant le vieillissement, la fissuration, voire la d\u00e9gradation des mat\u00e9riaux isolants, ce qui se traduit par des d\u00e9charges partielles et, dans les cas les plus graves, par des courts-circuits ou des fuites.Solutions : Effectuer r\u00e9guli\u00e8rement des contr\u00f4les professionnels de l'isolation, installer des protections contre la pluie et des filtres anti-poussi\u00e8re pour r\u00e9duire l'\u00e9rosion externe, et remplacer en temps opportun les mat\u00e9riaux isolants vieillissants.<\/p><p>\u2461 <strong><b>D\u00e9fauts li\u00e9s \u00e0 l'\u00e9l\u00e9vation de temp\u00e9rature<\/b><\/strong>: La chaleur est g\u00e9n\u00e9r\u00e9e par les pertes dans le fer et les pertes dans le cuivre lors du fonctionnement du transformateur. Une conception inadapt\u00e9e du syst\u00e8me de refroidissement ou une charge excessive entra\u00eenera une \u00e9l\u00e9vation anormale de la temp\u00e9rature, acc\u00e9l\u00e9rant le vieillissement de l'isolation, voire endommageant le transformateur. Solutions : optimiser la conception du syst\u00e8me de refroidissement, effectuer une surveillance r\u00e9guli\u00e8re de l'\u00e9l\u00e9vation de temp\u00e9rature, installer des capteurs de temp\u00e9rature pour une surveillance en temps r\u00e9el, ajuster la charge de fonctionnement et ajouter des \u00e9quipements de refroidissement si n\u00e9cessaire.<\/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. Quelle est la fr\u00e9quence d'entretien des transformateurs photovolta\u00efques ? <\/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 <strong><b>Inspection quotidienne<\/b><\/strong>: V\u00e9rifiez quotidiennement l'\u00e9tat de fonctionnement du transformateur photovolta\u00efque, notamment sa temp\u00e9rature, ses vibrations, son niveau sonore, etc., afin de d\u00e9tecter rapidement toute anomalie.<\/p><p>\u2461 <strong><b>Inspection trimestrielle<\/b><\/strong>: V\u00e9rifiez chaque trimestre les caract\u00e9ristiques \u00e9lectriques et m\u00e9caniques, telles que la tension de sortie, le courant, le facteur de puissance, ainsi que l'\u00e9tat d'usure ou de desserrage des pi\u00e8ces m\u00e9caniques du transformateur.<\/p><p>\u2462 <strong><b>R\u00e9vision annuelle<\/b><\/strong>: Effectuer chaque ann\u00e9e une r\u00e9vision compl\u00e8te, comprenant le nettoyage des surfaces internes et externes de l'\u00e9quipement afin d'\u00e9liminer les impuret\u00e9s telles que la poussi\u00e8re et l'huile ; inspecter les composants internes du transformateur, notamment l'\u00e9tat du noyau, des enroulements et des changeurs de prises ; remplacer les pi\u00e8ces endommag\u00e9es ; entretenir le syst\u00e8me de refroidissement, notamment en nettoyant les radiateurs et en v\u00e9rifiant le bon fonctionnement des ventilateurs ; et tester les performances d\u2019isolation.<\/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. Que faire si la temp\u00e9rature du transformateur photovolta\u00efque est trop \u00e9lev\u00e9e pendant son fonctionnement ? <\/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>Commencez par d\u00e9terminer la cause de la surchauffe. Si la charge est trop \u00e9lev\u00e9e, ajustez-la rapidement en r\u00e9partissant de mani\u00e8re raisonnable la production de la centrale \u00e9lectrique et en transf\u00e9rant une partie de la charge vers d\u2019autres transformateurs afin d\u2019\u00e9viter un fonctionnement en surcharge prolong\u00e9. En cas de d\u00e9faillance du syst\u00e8me de refroidissement, pour les transformateurs \u00e0 huile, nettoyez la poussi\u00e8re et les d\u00e9bris pr\u00e9sents sur les ventilateurs de refroidissement et les pompes \u00e0 huile, puis r\u00e9parez ou remplacez les pi\u00e8ces endommag\u00e9es afin d\u2019assurer une circulation normale de l\u2019huile pour le refroidissement ; pour les transformateurs de type sec, v\u00e9rifiez si les ventilateurs de refroidissement fonctionnent normalement et, si n\u00e9cessaire, r\u00e9parez-les ou remplacez-les. Parall\u00e8lement, am\u00e9liorez les conditions d\u2019exploitation du transformateur afin de garantir une bonne ventilation sur le site d\u2019installation. Lors des \u00e9t\u00e9s tr\u00e8s chauds, des mesures telles que la mise en place d\u2019un ombrage et l\u2019ajout d\u2019\u00e9quipements de ventilation peuvent \u00eatre prises pour r\u00e9duire la temp\u00e9rature ambiante. Si l\u2019on soup\u00e7onne que l\u2019isolation entre les t\u00f4les d\u2019acier au silicium du noyau est endommag\u00e9e, provoquant une \u00e9l\u00e9vation de temp\u00e9rature, mettez le transformateur hors tension pour effectuer des travaux de maintenance et appliquez \u00e0 nouveau de la peinture isolante afin de r\u00e9tablir les performances d\u2019isolation.<\/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. Quelles sont les causes de la d\u00e9t\u00e9rioration de l'huile dans les transformateurs photovolta\u00efques et quelles sont les m\u00e9thodes de traitement ? <\/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><strong>\u2460Les principales causes de d\u00e9t\u00e9rioration de l'huile sont les suivantes :<\/strong>: des r\u00e9actions d'oxydation se produisent sous l'effet de la temp\u00e9rature, de l'oxyg\u00e8ne et des champs \u00e9lectriques lors d'un fonctionnement \u00e0 long terme ; une \u00e9tanch\u00e9it\u00e9 insuffisante du transformateur entra\u00eene une infiltration d'humidit\u00e9, ce qui r\u00e9duit les performances d'isolation ; des d\u00e9bris m\u00e9talliques g\u00e9n\u00e9r\u00e9s par l'usure et le vieillissement des composants internes, ainsi que des particules provenant de l'effritement des mat\u00e9riaux isolants, se m\u00e9langent \u00e0 l'huile ; une temp\u00e9rature excessive de l'huile acc\u00e9l\u00e8re le vieillissement par oxydation.<\/p><p><strong>\u2461M\u00e9thodes de traitement :<\/strong> Filtrez l'huile d\u00e9t\u00e9rior\u00e9e \u00e0 l'aide d'un filtre \u00e0 huile sous vide afin d'\u00e9liminer les impuret\u00e9s et l'humidit\u00e9, ce qui permet d'am\u00e9liorer la puret\u00e9 et les performances d'isolation de l'huile ; si l'huile est fortement d\u00e9t\u00e9rior\u00e9e, remplacez-la par de l'huile neuve et nettoyez soigneusement le r\u00e9servoir d'huile du transformateur lors du remplacement ; v\u00e9rifiez l'\u00e9tanch\u00e9it\u00e9 du transformateur, r\u00e9parez les points de fuite et remplacez les joints us\u00e9s afin d'emp\u00eacher l'humidit\u00e9 et les impuret\u00e9s de p\u00e9n\u00e9trer \u00e0 nouveau.<\/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. Quelles sont les causes des bruits anormaux \u00e9mis par les transformateurs photovolta\u00efques ? <\/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 <strong>Noyau l\u00e2che :<\/strong> Le noyau est constitu\u00e9 de t\u00f4les d'acier au silicium empil\u00e9es. Le desserrage des boulons de serrage provoque des vibrations entre les t\u00f4les d'acier au silicium, ce qui entra\u00eene une augmentation des bruits anormaux. Mettez le transformateur hors tension pour effectuer l'entretien, puis resserrez les boulons de serrage du noyau.<\/p><p>\u2461 <strong><b>D\u00e9fauts d'enroulement<\/b><\/strong>: Les courts-circuits, les circuits ouverts ou les dommages au niveau de l'isolation des enroulements provoquent un courant anormal et, par cons\u00e9quent, un bruit anormal. Effectuez des tests d'isolation et des mesures de r\u00e9sistance en courant continu pour localiser le d\u00e9faut, puis r\u00e9parez ou remplacez les enroulements.<\/p><p>\u2462 <strong><b>Mauvais contact des commutateurs de tension<\/b><\/strong>: Un mauvais contact entre les bornes lors de la commutation des paliers du changeur de prises entra\u00eene des \u00e9tincelles et un \u201c grincement \u201d. Essayez d'effectuer plusieurs commutations afin d'\u00e9liminer la couche d'oxyde pr\u00e9sente sur la surface de contact ; si le probl\u00e8me persiste, d\u00e9montez, inspectez ou remplacez le changeur de prises.<\/p><p>\u2463 <strong><b>Corps \u00e9trangers \u00e0 l'int\u00e9rieur du transformateur<\/b><\/strong>: Des corps \u00e9trangers, tels que des d\u00e9bris m\u00e9talliques et des insectes, p\u00e9n\u00e8trent dans le transformateur et, sous l'effet du champ \u00e9lectromagn\u00e9tique, se mettent \u00e0 vibrer, ce qui g\u00e9n\u00e8re du bruit. Mettez le transformateur hors tension, ouvrez le r\u00e9servoir d'huile et retirez les corps \u00e9trangers.<\/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 photovolta\u00efque est un dispositif essentiel d'un syst\u00e8me de production d'\u00e9lectricit\u00e9 photovolta\u00efque qui assure la conversion de tension et le transport de l'\u00e9nergie \u00e9lectrique. Sa fonction principale consiste \u00e0 \u00e9lever la tension de l'\u00e9nergie \u00e9lectrique produite par les modules photovolta\u00efques (g\u00e9n\u00e9ralement \u00e0 une tension relativement faible) \u00e0 un niveau de tension plus \u00e9lev\u00e9, adapt\u00e9 au raccordement au r\u00e9seau ou au transport sur de longues distances. En tant que \u201c r\u00e9gulateur de tension \u201d et \u201c passerelle d'\u00e9nergie \u201d d'une centrale photovolta\u00efque, les performances du transformateur photovolta\u00efque sont directement li\u00e9es au rendement de production d'\u00e9lectricit\u00e9, \u00e0 la stabilit\u00e9 de fonctionnement et au retour sur investissement de la centrale.<\/p>","protected":false},"featured_media":5745,"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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SC(B)13 epoxy resin cast dry-type transformer can be used as an upgraded product of oil-immersed distribution transformer."],"_yoast_wpseo_content_score":["30"],"_yoast_wpseo_estimated-reading-time-minutes":["3"],"_elementor_edit_mode":["builder"],"_elementor_template_type":["product-post"],"_elementor_version":["3.31.1"],"_elementor_pro_version":["3.31.0"],"_astra_content_layout_flag":["disabled"],"site-post-title":["disabled"],"ast-title-bar-display":["disabled"],"ast-featured-img":["disabled"],"_wp_page_template":["default"],"_elementor_data":["[{\"id\":\"11e38e9\",\"elType\":\"container\",\"settings\":{\"flex_direction\":\"column\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true}},\"elements\":[{\"id\":\"3df9cea\",\"elType\":\"widget\",\"widgetType\":\"nested-tabs\",\"settings\":{\"tabs\":[{\"tab_title\":\"Brief 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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>1.Executive Standards<\\\/strong><\\\/p><p>\\u00a0transformers must comply with multiple core standards at home and abroad:<\\\/p><p>Standards: IEC 60076 (International Standard for Power Transformers), UL 1561 (Certification for Dry-Type Transformers in North America), EN 50438 (European Standard for PV Systems).<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Voltage Level<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Input Voltage<\\\/b><\\\/strong>: Commonly 3-phase 800V, 690V (for distributed PV systems); for large-scale power stations, it can reach 35kV, 110kV.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Output Voltage<\\\/b><\\\/strong>:<\\\/p><p>Low-voltage side: 400V, 380V (for grid connection or load power supply).<\\\/p><p>High-voltage side: 35kV (for box-type step-up transformers), 110kV (for main transformers).<\\\/p><p>Voltage Regulation Method<\\\/p><p>No-load voltage regulation<\\\/p><p>On-load voltage regulation<\\\/p><p>High-Voltage Tap Range<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Conventional Range<\\\/b><\\\/strong>:<\\\/p><p>\\u00b15% ( \\u00b12\\u00d72.5% for 10kV transformers).<\\\/p><p>\\u00b110% ( \\u00b18\\u00d71.25% for 35kV main transformers).<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>Distributed Scenarios<\\\/b><\\\/strong>: 50kVA ~ 2500kVA<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>Centralized Power Stations<\\\/b><\\\/strong>: 1000kVA ~ 80000kVA (110kV step-up main transformers).<\\\/p><p><strong><b>6.<\\\/b><\\\/strong><strong><b>Combined Box-Type Transformers<\\\/b><\\\/strong>: Typical capacity ranges from 1000kVA to 2500kVA, supporting parallel operation of multiple units for capacity expansion.Frequency<\\\/p><p>7.<strong><b>The standard frequency<\\\/b><\\\/strong>\\u00a0is 50Hz or 60Hz.<\\\/p><p><strong><b>8.<\\\/b><\\\/strong><strong><b>Connection Group<\\\/b><\\\/strong><\\\/p><p>\\u2460Dyn11: Neutral point grounding on the low-voltage side<\\\/p><p>\\u2461YNd11: Neutral point grounding on the high-voltage side<\\\/p><p><strong><b>9.<\\\/b><\\\/strong><strong><b>Impedance Voltage<\\\/b><\\\/strong><\\\/p><p>\\u2460Low-voltage side: 4% ~ 6% (transformers converting 800V to 400V).<\\\/p><p>\\u2461High-voltage side: 10.5% ~ 14% ( 110kV main transformers).<\\\/p><p><strong><b>10.<\\\/b><\\\/strong><strong><b>Cooling Method<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Dry-Type Transformers<\\\/b><\\\/strong>:<\\\/p><p>Natural Air Cooling (AN): Suitable for indoor or low-load scenarios ( industrial and commercial rooftops).<\\\/p><p>Forced Air Cooling (AF): Enhances heat dissipation through fans and supports short-term overload ( Instand transformers).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Oil-Immersed Transformers<\\\/b><\\\/strong>:<\\\/p><p>ONAN (Oil-Immersed Natural Cooling): The first choice for outdoor large-scale power stations ( ZGS-Z.G-1000 box-type transformers).<\\\/p><p><strong><b>11.<\\\/b><\\\/strong><strong><b>Protection Class<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Outdoor Scenarios<\\\/b><\\\/strong>: IP54 (dust and water protection) or IP65 (water spray protection)<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Indoor Scenarios<\\\/b><\\\/strong>: IP20 (basic protection), suitable for dust-free environments.<\\\/p><p><strong><b>12.<\\\/b><\\\/strong><strong><b>Insulation Class<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Class H Insulation (Temperature Resistance: 180\\u2103)<\\\/b><\\\/strong>: The mainstream choice for dry-type transformers.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Class A Insulation (Temperature Resistance: 105\\u2103)<\\\/b><\\\/strong>: Commonly used in oil-immersed transformers for special environments; moisture-proof insulation materials are required in high-humidity areas.<\\\/p><p><strong><b>\\u2161. Operating Conditions<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Ambient Temperature<\\\/b><\\\/strong>: -40\\u2103 ~ +45\\u2103 (alpine-type transformers can start at -50\\u2103).<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Altitude<\\\/b><\\\/strong>: Conventional models \\u22641000m; high-altitude models (above 3000m) require enhanced insulation.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Humidity Requirement<\\\/b><\\\/strong>: Daily average humidity \\u226495%, monthly average humidity \\u226490%.<\\\/p><p><strong><b>\\u2162. Test Types<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Type Tests<\\\/b><\\\/strong><\\\/p><p>Temperature rise test, short-circuit withstand test, partial discharge test (in compliance with IEC 60076).<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Routine Tests<\\\/b><\\\/strong><\\\/p><p>Insulation resistance test, transformation ratio and polarity check, winding DC resistance measurement.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Special Tests<\\\/b><\\\/strong><\\\/p><p>Lightning impulse test (1.2\\\/50\\u03bcs waveform), long-duration induced withstand voltage test (with partial discharge detection).<\\\/p><p><strong><b>\\u2163. Component Inspection<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Winding Inspection<\\\/b><\\\/strong><\\\/p><p>Frequency Response Analysis (FRA) is used to detect deformation and ensure short-circuit resistance.<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Core Inspection<\\\/b><\\\/strong><\\\/p><p>Measurement of no-load loss and excitation current to verify the quality of silicon steel sheets.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Bushing Inspection<\\\/b><\\\/strong><\\\/p><p>Dielectric loss and capacitance tests to identify insulation defects.<\\\/p><p><strong><b>\\u2164. Certification Types<\\\/b><\\\/strong><\\\/p><p><strong><b>International Certifications<\\\/b><\\\/strong><\\\/p><p>CE Certification (market access for Europe), UL Certification (North America), CSA Certification (Canada).<\\\/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<\\\/b><\\\/strong><strong><b>. Product Characteristics<\\\/b><\\\/strong><\\\/p><p>Core Design for High Efficiency and Energy Saving<\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Material Innovation<\\\/b><\\\/strong><\\\/p><p>Amorphous alloy cores ( amorphous three-dimensional transformers from Ankang Shaanbian) are adopted, reducing no-load loss by 60%-80% compared with traditional silicon steel sheets, with annual power savings up to 80,000 kWh (calculated based on 1000 hours of operation).Nano-crystalline alloy cores combined with stepped joint technology reduce hysteresis loss by 30%, achieving a conversion efficiency of up to 98.7%, far exceeding national standards.<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Dynamic Energy Efficiency Optimization<\\\/b><\\\/strong><\\\/p><p>The intelligent temperature control system automatically adjusts fan speed according to the load, reducing load loss by 15%.Nano-crystalline alloy cores maintain high efficiency even under low loads, adapting to the intermittent power generation characteristics of PV systems.Wide-Range Adaptability and Precise Regulation<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Voltage Compatibility<\\\/b><\\\/strong><\\\/p><p>The input range covers distributed voltages such as 690V and 800V, and the output supports low-voltage grid connection of 380V, 400V and high-voltage grid connection of 35kV, 110kV.Dynamic compensation technology controls voltage fluctuation within \\u00b10.5%, improving stability by 60% compared with traditional equipment.<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>Wide-Frequency Operation<\\\/b><\\\/strong><\\\/p><p>The standard frequency is 50\\\/60Hz, supporting \\u00b12% fluctuation; special designs can be compatible with wide-frequency operation of 45-65Hz, adapting to multi-energy complementary scenarios such as wind power and energy storage.High Reliability and Environmental Adaptability<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>Multi-Protection System<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Insulation and Protection<\\\/b><\\\/strong>: Class H insulation (temperature resistance: 180\\u2103) combined with IP54\\\/IP65 protection class enables stable operation in a wide temperature range of -40\\u2103 ~ +55\\u2103.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Corrosion Resistance Design<\\\/b><\\\/strong>: Zinc-nickel alloy coating + fluorocarbon paint spraying (salt spray test \\u22651500 hours), suitable for coastal high-salt-spray and desert high-dust environments.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Short-Circuit and Vibration Resistance<\\\/b><\\\/strong><\\\/p><p>Windings adopt pre-stressed carbon fiber binding technology, which can withstand a vibration acceleration of 5g. The short-circuit impedance is controlled at 4.5%, and the short-circuit withstand current reaches 20kA (for 4 seconds).<\\\/p><p><strong><b>\\u2161<\\\/b><\\\/strong><strong><b>. Product Advantages<\\\/b><\\\/strong><\\\/p><p><strong>1.Harmonic Resistance and Power Quality Optimization<\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Harmonic Suppression Technology<\\\/b><\\\/strong><\\\/p><p>Dual shielding design (copper foil electrostatic shielding + magnetic shielding layer) and staggered winding layout are adopted to control the Total Harmonic Distortion (THD) within 1.8%-3%, far exceeding the standards of GB\\\/T 14549 and IEEE 519.<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>DC Component Management<\\\/b><\\\/strong><\\\/p><p>Cores are coated with nano-crystalline ribbons to suppress switching harmonics above 20kHz.Windings adopt VPI (Vacuum Pressure Impregnation) technology to enhance resistance to DC bias magnetization and avoid high-frequency noise interference from inverters.Modular and Scenario-Specific Design<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Flexible Structural Configuration<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Dry-Type Transformers<\\\/b><\\\/strong>: Small size, maintenance-free, suitable for industrial and commercial rooftops ( Instand SG-50KVA).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Oil-Immersed Transformers<\\\/b><\\\/strong>: Strong heat dissipation performance, suitable for 110kV large-scale power stations ( SZ11 main transformers).<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Combined Box-Type Transformers<\\\/b><\\\/strong>: Integrate transformers, switches, and protection devices, reducing the floor area by 30% and shortening the construction period to 3 days.<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>Customization for Special Scenarios<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>High-Altitude Type<\\\/b><\\\/strong>: Enhanced insulation design, suitable for plateaus above 3000 meters.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Alpine Type<\\\/b><\\\/strong>: Capable of starting at -50\\u2103, equipped with an oil tank heating device.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Agriculture-PV Complementary Type<\\\/b><\\\/strong>: Low noise (\\u226455dB), moisture-proof and anti-condensation, without affecting fish growth.<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>Safety and Environmental Certifications<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>International Compliance<\\\/b><\\\/strong>: Certified by CE, UL, IEC 61378, etc., complying with the European VDE-AR-N 4105 low-voltage grid connection standard and the Chinese PCCC certification, ensuring global market access.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Sustainable Design<\\\/b><\\\/strong>: Amorphous alloy materials are recyclable, reducing production loss by 20%; the modular design supports component replacement, reducing electronic waste generation. For example, after adopting Zhuoerfan transformers, an automobile factory reduces carbon dioxide emissions by 1200 tons annually, achieving green production.<\\\/p><p><strong><b>6.<\\\/b><\\\/strong><strong><b>Low Noise and Ecological Friendliness<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Quiet Operation<\\\/b><\\\/strong>: Optimized magnetic circuit design and cooling system control noise within 30-55dB, meeting the requirements of noise-sensitive scenarios such as residential areas and hospitals. For example, fishery-PV complementary transformers reduce noise below the threshold of aquaculture equipment through a honeycomb-shaped heat dissipation structure.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Ecological Adaptability<\\\/b><\\\/strong>: The fire rating reaches UL94 V-0, and halogen-free insulation materials are used to avoid pollution to soil and water sources; the appearance design integrates with the surrounding environment, suitable for ecologically sensitive areas such as agriculture-PV complementary projects and tourist attractions.<\\\/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><strong style=\\\"font-size: 16px;\\\"><b>1.Core Material Selection Standards<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Core Materials<\\\/b><\\\/strong>: Amorphous alloys (Fe-Si-B series, thickness 0.02-0.03mm) or nano-crystalline alloys (nano-crystalline ribbons, saturation magnetic flux density \\u22651.8T) are preferred, which must meet the requirement of no-load loss \\u22640.1W\\\/kg (50Hz); traditional silicon steel sheets use high-magnetic-induction oriented silicon steel such as 30Q130, with iron loss \\u22641.3W\\\/kg.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Winding Conductors<\\\/b><\\\/strong>: High-purity oxygen-free copper wires (oxygen content \\u22640.003%) or copper foils (thickness 0.5-3mm) are used, with electrical conductivity \\u226598% IACS and tensile strength \\u2265300MPa; for special scenarios (e.g., high-corrosion environments), tinned copper wires or aluminum-magnesium alloy wires can be used (with supporting anti-corrosion treatment).<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Insulation Materials<\\\/b><\\\/strong>: Materials with temperature resistance \\u2265180\\u2103 are selected according to the insulation class (Class H or Class C), such as Nomex paper, polyimide film, and epoxy glass cloth board, which must pass the UL94 V-0 fire certification and have UV resistance and anti-aging properties (no cracking after accelerated aging test \\u22651000 hours).<\\\/p><p><strong>2<\\\/strong>.<strong style=\\\"font-size: 16px;\\\"><b>Preprocessing Technology<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Conductor Preprocessing<\\\/b><\\\/strong>: Copper wires\\\/foils are annealed in a continuous annealing furnace (temperature 400-500\\u2103, nitrogen protection) to eliminate stress and improve ductility; the surface is phosphated (to form an oxide film) or tinned (thickness 5-10\\u03bcm) to enhance adhesion to the insulation layer.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Insulation Material Preprocessing<\\\/b><\\\/strong>: Insulation paper\\\/film is vacuum-dried (80-100\\u2103, vacuum degree \\u226410Pa) to remove moisture (moisture content \\u22640.5%); glass fiber cloth needs to be pre-impregnated with glue (epoxy resin content 30-40%) to ensure uniform curing in subsequent processes.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Auxiliary Material Preprocessing<\\\/b><\\\/strong>: Aluminum profiles (radiators) used in the cooling system undergo anodization (film thickness \\u226515\\u03bcm) or fluorocarbon spraying (thickness 50-80\\u03bcm), passing a salt spray test \\u22651000 hours; oil tank steel plates (Q235B) are derusted by sandblasting (Sa2.5 level) to improve paint film adhesion.<\\\/p><p><strong>3.<\\\/strong><strong style=\\\"font-size: 16px;\\\"><b>Core Manufacturing Technology<\\\/b><\\\/strong><\\\/p><p>The core is the magnetic circuit core of the PV transformer, and its technology directly affects no-load loss and noise. High-precision processing is required to achieve low loss and high magnetic permeability.<\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Core Cutting<\\\/b><\\\/strong>: CNC laser cutting machines (precision \\u00b10.05mm) or high-speed punch presses (punching speed \\u2265300 times\\\/minute) are used to cut silicon steel sheets\\\/amorphous ribbons into stepped or beveled sheets (bevel angle 45\\u00b0) according to the design size, reducing magnetic leakage at the joints.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Annealing Treatment<\\\/b><\\\/strong>: Silicon steel sheet cores undergo high-temperature annealing (750-800\\u2103, nitrogen protection, heat preservation for 4-6 hours) to eliminate processing stress and improve magnetic flux density; amorphous alloy cores require low-temperature annealing (200-250\\u2103, vacuum environment) to prevent crystallization failure.<\\\/p><p><strong>4.<\\\/strong><strong style=\\\"font-size: 16px;\\\"><b>Winding Manufacturing Technology<\\\/b><\\\/strong><\\\/p><p>The winding is the core of current conversion, which needs to meet the requirements of high insulation, low loss, and short-circuit resistance. The technology focuses on winding precision and insulation reliability.<\\\/p><p><strong>5.<\\\/strong><strong style=\\\"font-size: 16px;\\\"><b>Insulation and Cooling System Integration Technology<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Oil-Immersed Transformers<\\\/b><\\\/strong>: After the core is placed in the oil tank, insulating oil (25# or 45# transformer oil) is injected, and vacuum degassing is performed (vacuum degree \\u22641Pa, degassing time 8-12 hours), with moisture content \\u226410ppm and dielectric loss factor (90\\u2103) \\u22640.005; the inner wall of the oil tank is coated with oil-resistant primer, and the outer wall is coated with sun-protective and anti-corrosion paint (thickness \\u226580\\u03bcm).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Dry-Type Transformers<\\\/b><\\\/strong>: The surface of the core is sprayed with insulating protective paint (Class H, thickness 0.1-0.2mm), key parts (e.g., lead joints) are sealed with insulating casting compound, and the overall insulation resistance is \\u22651000M\\u03a9 (25\\u2103).<\\\/p><p><strong>6<\\\/strong>.<strong style=\\\"font-size: 16px;\\\"><b>Intelligent Component Integration Technology<\\\/b><\\\/strong><\\\/p><p>PV transformers need to support condition monitoring, and the integration of intelligent components must ensure accurate signals and anti-interference performance.<\\\/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 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 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capacity?\",\"_id\":\"6187cb3\"},{\"item_title\":\"3.What are the common faults of PV transformers and how to solve them?\",\"_id\":\"9244a66\"},{\"item_title\":\"4.What is the maintenance cycle of PV transformers?\",\"_id\":\"b474fe0\"},{\"item_title\":\"5.What to do if the temperature of the PV transformer is too high during operation?\",\"_id\":\"bab7d20\"},{\"item_title\":\"6.What are the causes of oil deterioration in PV transformers and the treatment methods?\",\"_id\":\"a2a227a\"},{\"item_title\":\"7.What causes abnormal noise from PV 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>PV transformers are mainly used in PV power generation systems to step up the low-voltage DC power generated by PV modules (after being converted to low-voltage AC power by an inverter) to a voltage level suitable for grid connection. It works based on the principle of electromagnetic induction: an AC current is passed through the primary winding to generate an alternating magnetic flux through a closed magnetic circuit formed by the core. This magnetic flux passes through the secondary winding, and an electromotive force is induced in the secondary winding according to Faraday's law of electromagnetic induction, realizing voltage conversion. For example, a common 10kV PV step-up box-type transformer steps up the 0.4kV low-voltage AC power output by the inverter to 10kV for grid connection.<\\\/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\":\"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>Selection should comprehensively consider the scale of the PV array, the capacity of the inverter, and the load characteristics during actual operation. First, clarify the maximum output power of the PV array. Usually, the rated power of the inverter matches the PV array, and the transformer capacity should be slightly larger than the rated output power of the inverter. For example, for a 500kW PV power station, the configured inverter may be 500kW, and a transformer with a capacity of 500-630kVA can be selected. At the same time, a certain margin should be considered to cope with power fluctuations caused by factors such as changes in sunlight, ensuring that the transformer can operate stably without overload under various working conditions.<\\\/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 <strong><b>Insulation Faults<\\\/b><\\\/strong>: Long-term exposure to complex outdoor environments leads to erosion by moisture, dust, and pollutants, causing aging, cracking, or even breakdown of insulation materials, resulting in partial discharge and, in severe cases, short circuits or leakage.Solutions: Conduct regular professional insulation tests, install rain shields and dust screens to reduce external erosion, and replace aging insulation materials in a timely manner.<\\\/p><p>\\u2461 <strong><b>Temperature Rise Faults<\\\/b><\\\/strong>: Heat is generated due to iron loss and copper loss during transformer operation. Unreasonable design of the cooling system or excessive load will cause abnormal temperature rise, accelerating insulation aging or even damaging the transformer.Solutions: Optimize the design of the cooling system, conduct regular temperature rise monitoring, install temperature sensors for real-time monitoring, adjust the operating load, and add cooling equipment if necessary.<\\\/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 <strong><b>Daily Inspection<\\\/b><\\\/strong>: Check the working status of the PV transformer every day, including temperature, vibration, noise, etc., to detect abnormalities in a timely manner.<\\\/p><p>\\u2461 <strong><b>Quarterly Inspection<\\\/b><\\\/strong>: Check the electrical and mechanical properties every quarter, such as output voltage, current, power factor, and whether the mechanical parts of the transformer are worn or loose.<\\\/p><p>\\u2462 <strong><b>Annual Overhaul<\\\/b><\\\/strong>: Conduct a comprehensive overhaul every year, including cleaning the internal and external surfaces of the equipment to remove impurities such as dust and oil; inspecting the internal components of the transformer, such as the status of the core, windings, and tap changers; replacing damaged parts; maintaining the cooling system, such as cleaning radiators and checking the operation of fans; and testing the insulation performance.<\\\/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>First, determine the cause of the excessive temperature. If the load is too high, adjust the load in a timely manner by reasonably distributing the power generation of the power station and transferring part of the load to other transformers to avoid long-term overload operation. If the cooling system fails, for oil-immersed transformers, clean the dust and debris on the cooling fans and oil pumps, repair or replace damaged parts to ensure normal oil circulation cooling; for dry-type transformers, check whether the cooling fans are working normally, and repair or replace them if necessary. At the same time, improve the operating environment of the transformer to ensure good ventilation at the installation site. In high-temperature summers, measures such as shading and adding ventilation equipment can be taken to reduce the ambient temperature. If it is suspected that the insulation between the silicon steel sheets of the core is damaged, causing temperature rise, power off the transformer for maintenance and reapply insulating paint to restore insulation performance.<\\\/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><strong>\\u2460The main causes of oil deterioration are<\\\/strong>: oxidation reactions occur under the influence of temperature, oxygen, and electric fields during long-term operation; poor sealing of the transformer leads to moisture ingress, reducing insulation performance; metal debris generated by internal component wear and aging and falling off of insulation materials are mixed into the oil; excessive oil temperature accelerates oxidative aging.<\\\/p><p><strong>\\u2461Treatment methods:<\\\/strong> Filter the deteriorated oil using a vacuum oil filter to remove impurities and moisture, improving the purity and insulation performance of the oil; if the oil is severely deteriorated, replace it with new oil and thoroughly clean the transformer oil tank when replacing; check the sealing condition of the transformer, repair leakage points, and replace aging gaskets to prevent moisture and impurities from entering again.<\\\/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\":\"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 <strong>Loose Core:<\\\/strong> The core is composed of laminated silicon steel sheets. Loosening of the clamping bolts causes vibration between the silicon steel sheets, resulting in increased abnormal noise. Power off the transformer for maintenance and re-tighten the core clamping bolts.<\\\/p><p>\\u2461 <strong><b>Winding Faults<\\\/b><\\\/strong>: Short circuits, open circuits, or insulation damage of the windings cause abnormal current and thus abnormal noise. Conduct insulation tests and DC resistance measurements to identify the fault location, then repair or replace the windings.<\\\/p><p>\\u2462 <strong><b>Poor Contact of Tap Changers<\\\/b><\\\/strong>: Poor contact of the contacts when switching tap changer gears leads to spark discharge and a \\\"squeaking\\\" sound. 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data=\\\"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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=\\\"{"id":"f30b232","elType":"widget","settings":{"editor":"<p><strong><b>\u2160<\/b><\/strong><strong><b>. Product Characteristics<\/b><\/strong><\/p><p>Core Design for High Efficiency and Energy Saving<\/p><p><strong><b>1.<\/b><\/strong><strong><b>Material Innovation<\/b><\/strong><\/p><p>Amorphous alloy cores ( amorphous three-dimensional transformers from Ankang Shaanbian) are adopted, reducing no-load loss by 60%-80% compared with traditional silicon steel sheets, with annual power savings up to 80,000 kWh (calculated based on 1000 hours of operation).Nano-crystalline alloy cores combined with stepped joint technology reduce hysteresis loss by 30%, achieving a conversion efficiency of up to 98.7%, far exceeding national standards.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Dynamic Energy Efficiency Optimization<\/b><\/strong><\/p><p>The intelligent temperature control system automatically adjusts fan speed according to the load, reducing load loss by 15%.Nano-crystalline alloy cores maintain high efficiency even under low loads, adapting to the intermittent power generation characteristics of PV systems.Wide-Range Adaptability and Precise Regulation<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Voltage Compatibility<\/b><\/strong><\/p><p>The input range covers distributed voltages such as 690V and 800V, and the output supports low-voltage grid connection of 380V, 400V and high-voltage grid connection of 35kV, 110kV.Dynamic compensation technology controls voltage fluctuation within \u00b10.5%, improving stability by 60% compared with traditional equipment.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Wide-Frequency Operation<\/b><\/strong><\/p><p>The standard frequency is 50\/60Hz, supporting \u00b12% fluctuation; special designs can be compatible with wide-frequency operation of 45-65Hz, adapting to multi-energy complementary scenarios such as wind power and energy storage.High Reliability and Environmental Adaptability<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Multi-Protection System<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Insulation and Protection<\/b><\/strong>: Class H insulation (temperature resistance: 180\u2103) combined with IP54\/IP65 protection class enables stable operation in a wide temperature range of -40\u2103 ~ +55\u2103.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Corrosion Resistance Design<\/b><\/strong>: Zinc-nickel alloy coating + fluorocarbon paint spraying (salt spray test \u22651500 hours), suitable for coastal high-salt-spray and desert high-dust environments.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Short-Circuit and Vibration Resistance<\/b><\/strong><\/p><p>Windings adopt pre-stressed carbon fiber binding technology, which can withstand a vibration acceleration of 5g. The short-circuit impedance is controlled at 4.5%, and the short-circuit withstand current reaches 20kA (for 4 seconds).<\/p><p><strong><b>\u2161<\/b><\/strong><strong><b>. Product Advantages<\/b><\/strong><\/p><p><strong>1.Harmonic Resistance and Power Quality Optimization<\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Harmonic Suppression Technology<\/b><\/strong><\/p><p>Dual shielding design (copper foil electrostatic shielding + magnetic shielding layer) and staggered winding layout are adopted to control the Total Harmonic Distortion (THD) within 1.8%-3%, far exceeding the standards of GB\/T 14549 and IEEE 519.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>DC Component Management<\/b><\/strong><\/p><p>Cores are coated with nano-crystalline ribbons to suppress switching harmonics above 20kHz.Windings adopt VPI (Vacuum Pressure Impregnation) technology to enhance resistance to DC bias magnetization and avoid high-frequency noise interference from inverters.Modular and Scenario-Specific Design<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Flexible Structural Configuration<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Dry-Type Transformers<\/b><\/strong>: Small size, maintenance-free, suitable for industrial and commercial rooftops ( Instand SG-50KVA).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Oil-Immersed Transformers<\/b><\/strong>: Strong heat dissipation performance, suitable for 110kV large-scale power stations ( SZ11 main transformers).<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Combined Box-Type Transformers<\/b><\/strong>: Integrate transformers, switches, and protection devices, reducing the floor area by 30% and shortening the construction period to 3 days.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Customization for Special Scenarios<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>High-Altitude Type<\/b><\/strong>: Enhanced insulation design, suitable for plateaus above 3000 meters.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Alpine Type<\/b><\/strong>: Capable of starting at -50\u2103, equipped with an oil tank heating device.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Agriculture-PV Complementary Type<\/b><\/strong>: Low noise (\u226455dB), moisture-proof and anti-condensation, without affecting fish growth.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Safety and Environmental Certifications<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>International Compliance<\/b><\/strong>: Certified by CE, UL, IEC 61378, etc., complying with the European VDE-AR-N 4105 low-voltage grid connection standard and the Chinese PCCC certification, ensuring global market access.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Sustainable Design<\/b><\/strong>: Amorphous alloy materials are recyclable, reducing production loss by 20%; the modular design supports component replacement, reducing electronic waste generation. For example, after adopting Zhuoerfan transformers, an automobile factory reduces carbon dioxide emissions by 1200 tons annually, achieving green production.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Low Noise and Ecological Friendliness<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Quiet Operation<\/b><\/strong>: Optimized magnetic circuit design and cooling system control noise within 30-55dB, meeting the requirements of noise-sensitive scenarios such as residential areas and hospitals. For example, fishery-PV complementary transformers reduce noise below the threshold of aquaculture equipment through a honeycomb-shaped heat dissipation structure.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Ecological Adaptability<\/b><\/strong>: The fire rating reaches UL94 V-0, and halogen-free insulation materials are used to avoid pollution to soil and water sources; the appearance design integrates with the surrounding environment, suitable for ecologically sensitive areas such as agriculture-PV complementary projects and tourist attractions.<\/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"}\\\"]\\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\\\" 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.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 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 working principle of a PV 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 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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.How to select a PV transformer with the appropriate capacity? <\\\/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.What are the common faults of PV transformers and how to solve them? <\\\/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=\\\"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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-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.What is the maintenance cycle of PV transformers? <\\\/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\\\" 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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 to do if the temperature of the PV transformer is too high during 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-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\\\" 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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 are the causes of oil deterioration in PV transformers and the treatment methods? <\\\/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\\\" 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