{"id":1715,"date":"2025-08-26T02:49:12","date_gmt":"2025-08-26T02:49:12","guid":{"rendered":"https:\/\/www.ketetransformer.com\/?post_type=product&#038;p=1715"},"modified":"2025-09-25T08:30:36","modified_gmt":"2025-09-25T08:30:36","slug":"35kv-electrical-power-transformer","status":"publish","type":"product","link":"https:\/\/www.ketetransformer.com\/fr\/products\/35kv-electrical-power-transformer\/","title":{"rendered":"Transformateur de puissance redresseur triphas\u00e9 \u00e0 huile de 35 kV"},"content":{"rendered":"<div data-elementor-type=\"product-post\" data-elementor-id=\"1715\" class=\"elementor elementor-1715\" 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=\"\u0623\u0632\u0631\u0627\u0631 \u0627\u0644\u062a\u0628\u0648\u064a\u0628. \u0627\u0641\u062a\u062d \u0627\u0644\u0639\u0646\u0627\u0635\u0631 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u062a\u0627\u062d \u00abEnter\u00bb \u0623\u0648 \u0645\u0641\u062a\u0627\u062d \u00abSpace\u00bb\u060c \u0648\u0623\u063a\u0644\u0642\u0647\u0627 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u062a\u0627\u062d \u00abEscape\u00bb\u060c \u0648\u0627\u0646\u062a\u0642\u0644 \u0628\u064a\u0646\u0647\u0627 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u0627\u062a\u064a\u062d \u0627\u0644\u0623\u0633\u0647\u0645.\" data-no-translation-aria-label=\"\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-649863461\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-649863461\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tBr\u00e8ve pr\u00e9sentation\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863462\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863462\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tFonctionnalit\u00e9\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863463\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863463\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tStructure\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863464\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863464\" style=\"--n-tabs-title-order: 4;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tCaract\u00e9ristiques techniques\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863465\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"5\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863465\" style=\"--n-tabs-title-order: 5;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tSch\u00e9ma\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-649863466\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"6\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-649863466\" style=\"--n-tabs-title-order: 6;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tFAQ\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-649863461\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-649863461\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-63d4ba4 e-con-full e-flex e-con e-child\" data-id=\"63d4ba4\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-76c97e8 elementor-widget elementor-widget-heading\" data-id=\"76c97e8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Br\u00e8ve pr\u00e9sentation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40fb5fa elementor-widget elementor-widget-text-editor\" data-id=\"40fb5fa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>\u2160. Pr\u00e9sentation du produit<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Normes applicables aux cadres dirigeants<\/b><\/strong><\/p><p>Normes internationales : CEI 60076-1 \u00e0 5<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Niveaux de tension<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>C\u00f4t\u00e9 haute tension<\/b><\/strong>: Allant de 0,4 kV \u00e0 35 kV (10 kV, 20 kV, 35 kV). Pour les transformateurs redresseurs de tr\u00e8s grande puissance utilis\u00e9s en \u00e9lectrolyse, la tension peut atteindre 110 kV \u00e0 220 kV.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>C\u00f4t\u00e9 basse tension<\/b><\/strong>: Selon les cas d'application, la plage habituelle est comprise entre 600 V et 1 500 V (dans l'industrie de l'\u00e9lectrolyse) ; dans le domaine des pr\u00e9cipitateurs \u00e9lectrostatiques, la tension continue peut atteindre 60 kV \u00e0 90 kV.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>M\u00e9thodes de r\u00e9gulation de tension<\/b><\/strong><\/p><p><strong><b>R\u00e9gulation de tension en charge<\/b><\/strong>: Permet un r\u00e9glage en continu gr\u00e2ce \u00e0 un commutateur de r\u00e9gulation de tension \u00e0 35 niveaux (r\u00e9glage fin\/grossier), adapt\u00e9 aux situations n\u00e9cessitant des ajustements fr\u00e9quents de la tension (production d'aluminium par \u00e9lectrolyse).<\/p><p><strong><b>4.<\/b><\/strong><strong><b>R\u00e9gulation de tension hors circuit<\/b><\/strong>: R\u00e9glage manuel \u00e0 l'aide d'un changeur de prises, adapt\u00e9 aux besoins en charge fixes (transport ferroviaire urbain).<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Gamme de prises de tension haute<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Gamme classique<\/b><\/strong>: \u00b12\u00d72,51 TP6T (soit 5 prises au total), applicable aux situations o\u00f9 la tension du r\u00e9seau varie de \u00b151 TP6T.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Conception sp\u00e9ciale<\/b><\/strong>: Certains transformateurs destin\u00e9s \u00e0 l'\u00e9lectrolyse peuvent \u00eatre adapt\u00e9s \u00e0 \u00b110% afin de r\u00e9pondre aux besoins li\u00e9s \u00e0 des fluctuations de tension extr\u00eames.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Capacit\u00e9 nominale<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Petite capacit\u00e9<\/b><\/strong>: 30 kVA \u00e0 2 500 kVA (utilis\u00e9s dans les secteurs de la galvanoplastie et de l'usinage \u00e9lectrique).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Grande capacit\u00e9<\/b><\/strong>: 16 000 kVA \u00e0 180 000 kVA (produits sp\u00e9cialis\u00e9s pour l'aluminium \u00e9lectrolytique propos\u00e9s par des entreprises telles que TBEA).<\/p><p><strong><b>7.<\/b><\/strong><strong><b>Fr\u00e9quence<\/b><\/strong>: 50 Hz ou 60 Hz<\/p><p><strong><b>8.<\/b><\/strong><strong><b>Num\u00e9ro de phase<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Triphas\u00e9<\/b><\/strong>: Configuration standard, adapt\u00e9e aux applications industrielles \u00e0 forte puissance (\u00e9lectrolyse, traction).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Monophas\u00e9<\/b><\/strong>: Utilis\u00e9 dans des applications \u00e0 faible puissance (d\u00e9poussi\u00e9reurs \u00e9lectrostatiques, petits \u00e9quipements de galvanoplastie).<\/p><p><strong><b>9.<\/b><\/strong><strong><b>Groupes de connexion<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Types courants<\/b><\/strong>: Dyn11 (forte capacit\u00e9 de suppression des harmoniques), Yyn0 (point neutre mis \u00e0 la terre), Dy5 (redressement d\u00e9phas\u00e9).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Conception sp\u00e9ciale<\/b><\/strong>: Connexion \u00e0 enroulements multiples avec d\u00e9phasage (d\u00e9phasage de \u00b17,5\u00b0), permettant de constituer un syst\u00e8me redresseur \u00e0 24 impulsions.<\/p><p><strong><b>10.<\/b><\/strong><strong><b>Imp\u00e9dance Tension<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Gamme classique<\/b><\/strong>: 5%~10% (adapt\u00e9 en fonction des applications). Les transformateurs destin\u00e9s \u00e0 l'\u00e9lectrolyse sont g\u00e9n\u00e9ralement con\u00e7us avec des valeurs comprises entre 7% et 8% afin de limiter le courant de court-circuit.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Conception \u00e0 haute imp\u00e9dance<\/b><\/strong>: Dans le domaine des pr\u00e9cipitateurs \u00e9lectrostatiques, l'imp\u00e9dance peut d\u00e9passer 12%, ce qui permet de se passer de r\u00e9acteurs externes.<\/p><p><strong><b>11.<\/b><\/strong><strong><b>M\u00e9thodes de refroidissement<\/b><\/strong><\/p><p><strong><b>Circulation naturelle de l'huile (ON) :<\/b><\/strong>\u00a0Convient aux transformateurs de faible puissance.<\/p><p><strong><b>Circulation d'huile forc\u00e9e (OF) :<\/b><\/strong>\u00a0\u00c9quip\u00e9s de radiateurs, destin\u00e9s aux transformateurs de grande puissance.<\/p><p><strong><b>12.<\/b><\/strong><strong><b>Type \u00e0 bain d'huile<\/b><\/strong>:<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>De type sec<\/b><\/strong>: Isolation par moulage \u00e0 l'\u00e9poxy ou en papier NOMEX, avec refroidissement par air naturel (AN) ou par air forc\u00e9 (AF) et indices de protection IP20 \u00e0 IP54.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Refroidissement par eau<\/b><\/strong>: Enroulements \u00e0 refroidissement direct par eau, adapt\u00e9s aux applications \u00e0 forte densit\u00e9 de puissance (par exemple, les convertisseurs de fr\u00e9quence haute tension).<\/p><p><strong><b>13.<\/b><\/strong><strong><b>Niveaux de protection<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>IP20<\/b><\/strong>: \u00c0 utiliser en int\u00e9rieur, pour une protection contre les corps \u00e9trangers solides de plus de 12 mm.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>IP54<\/b><\/strong>: Pour une utilisation en ext\u00e9rieur ou dans des environnements poussi\u00e9reux, r\u00e9sistant \u00e0 la poussi\u00e8re et aux projections d'eau (dans l'industrie m\u00e9tallurgique).<\/p><p><strong><b>14.<\/b><\/strong><strong><b>Classes d'isolation<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Classe F<\/b><\/strong>: R\u00e9sistance \u00e0 la chaleur jusqu'\u00e0 155 \u00b0C, \u00e9l\u00e9vation de temp\u00e9rature \u2264 100 K ; le choix le plus courant pour les transformateurs de type sec \u00e0 enrobage \u00e9poxy.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Classe H<\/b><\/strong>: R\u00e9sistance \u00e0 la chaleur jusqu'\u00e0 180 \u00b0C, isolation en papier NOMEX, adapt\u00e9 aux environnements \u00e0 haute temp\u00e9rature (industrie p\u00e9trochimique).<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Classe B<\/b><\/strong>: R\u00e9sistance \u00e0 la chaleur jusqu'\u00e0 130 \u00b0C, couramment utilis\u00e9 dans les transformateurs traditionnels \u00e0 huile.<\/p><p><strong><b>II. Conditions d'exploitation<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Altitude<\/b><\/strong>: \u2264 1 000 m (une correction conforme \u00e0 la norme GB3859 est n\u00e9cessaire si cette altitude est d\u00e9pass\u00e9e).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Temp\u00e9rature ambiante<\/b><\/strong>: -25 \u00b0C \u00e0 +40 \u00b0C, humidit\u00e9 \u2264 90% (sans condensation).<\/p><p><strong><b>3.<\/b><\/strong><strong><b>M\u00e9thode d'installation<\/b><\/strong>: Utilisation en int\u00e9rieur\/ext\u00e9rieur (indice de protection IP54) ; l'installation murale est prise en charge (pour les structures s\u00e8ches).<\/p><p><strong><b>\u2162. Types d'\u00e9preuves<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Essais de type<\/b><\/strong>: Y compris l'essai d'\u00e9l\u00e9vation de temp\u00e9rature (mode AN\/AF) et l'essai de r\u00e9sistance aux courts-circuits (1,5 fois le courant nominal pendant 5 secondes).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Essais en usine<\/b><\/strong>: Essai de r\u00e9sistance d'isolement (\u00e0 l'aide d'un m\u00e9gohmm\u00e8tre de 2 500 V), mesure de la r\u00e9sistance en courant continu des enroulements (\u00e9cart \u2264 \u00b12%).<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Tests sp\u00e9cifiques<\/b><\/strong>: Essai au brouillard salin de 72 heures (pour les zones c\u00f4ti\u00e8res), mesure des d\u00e9charges partielles (\u2264 50 pC).<\/p><p><strong><b>\u2163. Contr\u00f4le des composants<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>\u00c9l\u00e9ments cl\u00e9s<\/b><\/strong>:<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Enroulements<\/b><\/strong>: Analyse des pertes par courants de Foucault, essai de r\u00e9sistance de l'isolation intercouche.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Syst\u00e8me de refroidissement<\/b><\/strong>: Essai de d\u00e9bit (pour la circulation d'huile forc\u00e9e), v\u00e9rification des performances du ventilateur.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Certification des mati\u00e8res premi\u00e8res<\/b><\/strong>: Les t\u00f4les d'acier au silicium doivent \u00eatre certifi\u00e9es UL, et la r\u00e9sine \u00e9poxy doit \u00eatre conforme \u00e0 la norme CEI 60455.<\/p><p><strong><b>\u2164. Types de certification<\/b><\/strong><\/p><p>Certifications internationales : CE (UE), UL (Am\u00e9rique du Nord), T\u00dcV (Allemagne), 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. Caract\u00e9ristiques du produit<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Une isolation fiable<\/b><\/strong>: Un niveau d'isolation raisonnable et fiable est d\u00e9termin\u00e9 en fonction des caract\u00e9ristiques de la charge, des fluctuations de tension du r\u00e9seau et d'autres facteurs.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Mod\u00e8le d'isolation<\/b><\/strong>: Le coefficient de s\u00e9curit\u00e9 environnementale du produit est \u2265 1,67, ce qui permet de garantir pleinement la stabilit\u00e9 des performances \u00e9lectriques.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Stabilit\u00e9 dynamique \u00e9lev\u00e9e<\/b><\/strong>: Les enroulements pr\u00e9sentent une r\u00e9sistance m\u00e9canique \u00e9lev\u00e9e. Au cours des phases de conception et de fabrication, les sources d'instabilit\u00e9 dynamique dues au flux de fuite et \u00e0 d'autres facteurs sont \u00e9limin\u00e9es, ce qui permet au transformateur de r\u00e9pondre aux exigences des environnements de charge difficiles.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Haute r\u00e9sistance aux courts-circuits<\/b><\/strong>: Des proc\u00e9d\u00e9s sp\u00e9cifiques de conception et de fabrication sont mis en \u0153uvre, tels que l'enroulement de courroies serr\u00e9es \u00e0 haute r\u00e9sistance autour de la surface ext\u00e9rieure des enroulements, ce qui conf\u00e8re \u00e0 l'ensemble une bonne r\u00e9sistance aux courts-circuits et la capacit\u00e9 de supporter l'impact du courant de court-circuit.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Bonne stabilit\u00e9 thermique<\/b><\/strong>: Gr\u00e2ce \u00e0 une conception avanc\u00e9e du produit, les \u00e9l\u00e9ments chauffants et l'\u00e9l\u00e9vation de temp\u00e9rature aux points chauds sont strictement contr\u00f4l\u00e9s. Des conducteurs en cuivre sont utilis\u00e9s pour les bobines et les fils, et la densit\u00e9 de courant est maintenue \u00e0 un faible niveau. Les principaux indicateurs d'\u00e9l\u00e9vation de temp\u00e9rature sont inf\u00e9rieurs d'au moins 5 \u00b0C \u00e0 la norme nationale.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Grande capacit\u00e9 de surcharge<\/b><\/strong>: Il peut fonctionner en toute s\u00e9curit\u00e9 pendant une longue dur\u00e9e \u00e0 sa charge nominale, et peut \u00e9galement fonctionner en toute s\u00e9curit\u00e9 \u00e0 pleine charge en cas de surtension de type 110% pendant une longue dur\u00e9e. Les bornes du transformateur reli\u00e9es au moteur peuvent supporter 1,5 fois le courant nominal pendant 5 secondes.<\/p><p><strong><b>7.<\/b><\/strong><strong><b>R\u00e9gulation flexible de la tension<\/b><\/strong>: En s'appuyant sur des principes tels que la r\u00e9gulation de tension \u00e0 commande de phase, il est possible d'utiliser des r\u00e9acteurs \u00e0 autosaturation ou des thyristors pour ajuster la tension de sortie du transformateur, ce qui permet d'obtenir une r\u00e9gulation de tension en continu afin de r\u00e9pondre aux exigences de tension des diff\u00e9rentes charges.<\/p><p><strong><b>8.<\/b><\/strong><strong><b>Haute efficacit\u00e9<\/b><\/strong>: Une conception \u00e0 faibles pertes a \u00e9t\u00e9 adopt\u00e9e, notamment gr\u00e2ce \u00e0 l'utilisation de t\u00f4les d'acier au silicium \u00e0 haute conductivit\u00e9 magn\u00e9tique et \u00e0 l'optimisation de la structure de l'enroulement. Le rendement \u00e0 pleine charge est \u2265 98,51 TP6T, ce qui r\u00e9pond \u00e0 la norme d'efficacit\u00e9 \u00e9nerg\u00e9tique de premier niveau et permet de r\u00e9aliser d'importantes \u00e9conomies d'\u00e9nergie.<\/p><p><strong><b>9.<\/b><\/strong><strong><b>Structure compacte<\/b><\/strong>: La technique de moulage sous vide \u00e0 base de r\u00e9sine \u00e9poxy ou la conception \u00e0 structure ouverte permet de r\u00e9duire le volume de 40% par rapport aux transformateurs \u00e0 huile traditionnels. Il peut \u00eatre install\u00e9 au mur, ce qui permet de gagner de la place.<\/p><p><strong><b>10.<\/b><\/strong><strong><b>Faible niveau sonore<\/b><\/strong>: Des mat\u00e9riaux de haute qualit\u00e9 et des proc\u00e9d\u00e9s de fabrication de pointe sont utilis\u00e9s, tels que des proc\u00e9d\u00e9s de trempage sp\u00e9ciaux et des m\u00e9thodes de laminage optimis\u00e9es du noyau en fer, ce qui permet de r\u00e9duire efficacement les vibrations et le bruit pendant le fonctionnement. Le niveau sonore est g\u00e9n\u00e9ralement inf\u00e9rieur \u00e0 65 dB.<\/p><p><strong><b>11.<\/b><\/strong><strong><b>Bonnes performances environnementales<\/b><\/strong>: Certains transformateurs redresseurs sont de type sec ; ils se caract\u00e9risent par leur r\u00e9sistance \u00e0 la chaleur et \u00e0 l'humidit\u00e9, ne d\u00e9gagent pas de gaz toxiques et sont respectueux de l'environnement. De plus, il est possible de choisir le niveau de protection en fonction des diff\u00e9rents environnements d'utilisation.<\/p><p><strong><b>\u2161<\/b><\/strong><strong><b>. Avantages du produit<\/b><\/strong><\/p><p>1. Les transformateurs de redressement constituent des \u00e9quipements essentiels pour assurer la conversion du courant alternatif en courant continu dans les syst\u00e8mes d'\u00e9lectronique de puissance. Leur conception et leurs performances ont une incidence directe sur la stabilit\u00e9, le rendement et la s\u00e9curit\u00e9 des syst\u00e8mes de redressement. Vous trouverez ci-dessous une analyse d\u00e9taill\u00e9e des avantages des transformateurs de redressement sous plusieurs angles :<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Conception d'enroulement flexible<\/b><\/strong><\/p><p>Les enroulements du c\u00f4t\u00e9 primaire (entr\u00e9e CA) et du c\u00f4t\u00e9 secondaire (raccord\u00e9 au redresseur) des transformateurs de redressement peuvent \u00eatre con\u00e7us avec diff\u00e9rents rapports de transformation et diff\u00e9rentes m\u00e9thodes de c\u00e2blage (en \u00e9toile, en triangle, en zigzag) en fonction du type de circuit redresseur (demi-onde monophas\u00e9, double alternance, pont triphas\u00e9), ce qui garantit l'adaptation aux param\u00e8tres \u00e9lectriques des composants du redresseur (diodes, thyristors, etc.) et permet de r\u00e9duire les pertes et les interf\u00e9rences du circuit.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Capacit\u00e9 de sortie \u00e0 enroulements multiples<\/b><\/strong><\/p><p>Il est possible de concevoir plusieurs jeux d'enroulements secondaires afin de r\u00e9pondre aux besoins de plusieurs circuits redresseurs fonctionnant simultan\u00e9ment (sc\u00e9narios n\u00e9cessitant plusieurs alimentations en courant continu dans les \u00e9quipements industriels d'\u00e9lectrolyse et de galvanoplastie), ce qui simplifie le c\u00e2blage du syst\u00e8me et optimise l'utilisation de l'espace.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>La r\u00e9actance de fuite peut limiter l'amplitude des courants harmoniques<\/b><\/strong><\/p><p>Plusieurs transformateurs redresseurs sont combin\u00e9s avec diff\u00e9rents angles de d\u00e9phasage, ce qui permet aux harmoniques de s'annuler mutuellement et de r\u00e9duire consid\u00e9rablement le taux de distorsion harmonique totale.<\/p><p><strong><b>\u2463<\/b><\/strong><strong><b>Am\u00e9lioration du facteur de puissance<\/b><\/strong><\/p><p>Un transformateur redresseur correctement con\u00e7u peut \u00eatre associ\u00e9 \u00e0 un dispositif de filtrage afin d'am\u00e9liorer les caract\u00e9ristiques de charge inductive du syst\u00e8me redresseur, de r\u00e9duire les pertes de puissance r\u00e9active, d'augmenter le facteur de puissance c\u00f4t\u00e9 r\u00e9seau \u00e9lectrique et de diminuer les co\u00fbts d'\u00e9lectricit\u00e9.<\/p><p><strong><b>\u2464<\/b><\/strong><strong><b>Adaptation \u00e0 la protection contre les surintensit\u00e9s et les surtensions<\/b><\/strong><\/p><p>Les enroulements de protection contre les surintensit\u00e9s peuvent \u00eatre int\u00e9gr\u00e9s \u00e0 la conception des enroulements ou associ\u00e9s \u00e0 des dispositifs de protection \u00e0 relais. En cas de surcharge ou de court-circuit dans le circuit redresseur, l'alimentation \u00e9lectrique peut \u00eatre rapidement coup\u00e9e ou le courant de d\u00e9faut peut \u00eatre limit\u00e9, ce qui r\u00e9duit le risque de dommages mat\u00e9riels.<\/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>1. Le processus de fabrication des transformateurs de redressement constitue un maillon essentiel pour assurer leur adaptation aux charges de redressement non lin\u00e9aires, la suppression des interf\u00e9rences harmoniques et la garantie d'un fonctionnement stable \u00e0 long terme. Il couvre l'ensemble du processus de contr\u00f4le de pr\u00e9cision, depuis la s\u00e9lection des mati\u00e8res premi\u00e8res jusqu'aux essais du produit fini. Vous trouverez ci-dessous une description d\u00e9taill\u00e9e de ses principaux processus de fabrication :<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>D\u00e9coupe de t\u00f4les d'acier au silicium<\/b><\/strong>:<\/p><p>Les lignes de cisaillage transversal \u00e0 commande num\u00e9rique sont utilis\u00e9es pour r\u00e9aliser des d\u00e9coupes pr\u00e9cises, afin de garantir que l'\u00e9cart dimensionnel de la t\u00f4le soit \u2264 \u00b10,1 mm et que les bavures de d\u00e9coupe soient \u2264 0,02 mm (afin d'\u00e9viter une augmentation des pertes par courants de Foucault).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Laminage du noyau en fer<\/b><\/strong>:<\/p><p>Le proc\u00e9d\u00e9 dit de \u201c culasse sup\u00e9rieure non lamin\u00e9e \u201d est adopt\u00e9 (laminage pr\u00e9alable de la colonne du noyau de fer, puis insertion de la culasse sup\u00e9rieure) afin de r\u00e9duire les contraintes de laminage ; le facteur de laminage est maintenu entre 0,96 et 0,97 (pour am\u00e9liorer la conductivit\u00e9 magn\u00e9tique).La fixation est assur\u00e9e par des vis isolantes ou des bandes de serrage, avec une force de serrage uniforme (compression axiale \u2264 1%) afin d\u2019\u00e9viter le bruit de vibration du noyau de fer (bruit \u00e0 vide \u2264 65 dB).<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Traitement de mise \u00e0 la terre du noyau en fer<\/b><\/strong>:<\/p><p>Mise \u00e0 la terre en un seul point (une plaque de mise \u00e0 la terre est raccord\u00e9e depuis la partie inf\u00e9rieure du noyau de fer) afin d'\u00e9viter les probl\u00e8mes li\u00e9s \u00e0 une mise \u00e0 la terre en plusieurs points ; la r\u00e9sistance de mise \u00e0 la terre est \u2264 1 \u03a9.<\/p><p><strong><b>\u2463<\/b><\/strong><strong><b>Proc\u00e9d\u00e9 de fabrication d'un noyau en fer<\/b><\/strong>:<\/p><p>Le noyau en fer constitue le c\u0153ur du circuit magn\u00e9tique ; le processus vise principalement \u00e0 r\u00e9duire les pertes dans le fer, \u00e0 minimiser le bruit et \u00e0 garantir la r\u00e9sistance structurelle.<\/p><p><strong><b>\u2464<\/b><\/strong><strong><b>Proc\u00e9d\u00e9 de fabrication d'enroulements<\/b><\/strong>:<\/p><p>L'enroulement constitue le c\u0153ur du circuit et doit r\u00e9pondre aux exigences suivantes : r\u00e9sistance \u00e0 la tension, r\u00e9sistance aux courts-circuits, faibles pertes et adaptation aux harmoniques. Transformateurs \u00e0 sec : Les enroulements sont enrob\u00e9s de r\u00e9sine \u00e9poxy (d\u00e9gazage sous vide \u2264 -0,095 MPa, temp\u00e9rature de durcissement 130 \u00b0C \u00d7 8 h) afin de garantir l\u2019absence de bulles dans la couche isolante (diam\u00e8tre des bulles \u2264 0,5 mm).Transformateurs \u00e0 huile : les enroulements subissent un pr\u00e9s\u00e9chage (105 \u00b0C \u00d7 48 h, degr\u00e9 de vide \u2264 10 Pa), puis, apr\u00e8s avoir \u00e9t\u00e9 tremp\u00e9s dans de la peinture, ils sont s\u00e9ch\u00e9s (120 \u00b0C \u00d7 24 h) afin d\u2019am\u00e9liorer l\u2019int\u00e9grit\u00e9 de l\u2019isolation.<\/p><p><strong><b>\u2465<\/b><\/strong><strong><b>Conception et bobinage des bobines<\/b><\/strong>:<\/p><p>Conform\u00e9ment aux exigences de redressement \u00e0 d\u00e9phasage (par exemple, 12\/24 impulsions), un enroulement segment\u00e9 \u00e0 plusieurs bobinages est utilis\u00e9 afin de garantir que la pr\u00e9cision de la diff\u00e9rence de phase de chaque bobinage soit \u2264 \u00b10,5\u00b0.L'enroulement basse tension (c\u00f4t\u00e9 redresseur) est r\u00e9alis\u00e9 selon la m\u00e9thode de la feuille (\u00e9paisseur de la feuille de cuivre : 0,3 \u00e0 0,5 mm) afin d'am\u00e9liorer l'efficacit\u00e9 de la dissipation thermique ; l'enroulement haute tension est r\u00e9alis\u00e9 selon la m\u00e9thode continue ou  afin d'am\u00e9liorer la r\u00e9sistance d'isolation.<\/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 triphas\u00e9 \u00e0 huile pour haute et basse tension <\/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-wa1i{font-weight:bold;text-align:center;vertical-align:middle}\r\n.tg .tg-uzvj{border-color:inherit;font-weight:bold;text-align:center;vertical-align:middle}\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-uzvj\" rowspan=\"2\">Capacit\u00e9 nominale<\/th>\r\n    <th class=\"tg-wa1i\" rowspan=\"2\">H.V.<\/th>\r\n    <th class=\"tg-wa1i\" rowspan=\"2\">L.V.<\/th>\r\n    <th class=\"tg-wa1i\" rowspan=\"2\">Symbole de connexion<\/th>\r\n    <th class=\"tg-wa1i\" colspan=\"2\">Perte \u00e0 vide (kW)<\/th>\r\n    <th class=\"tg-wa1i\" colspan=\"2\">Perte en charge (kW)<\/th>\r\n    <th class=\"tg-wa1i\">Imp\u00e9dance de court-circuit<\/th>\r\n  <\/tr>\r\n  <tr>\r\n    <th class=\"tg-wa1i\">S11<\/th>\r\n    <th class=\"tg-wa1i\">S13<\/th>\r\n    <th class=\"tg-wa1i\">S11<\/th>\r\n    <th class=\"tg-wa1i\">S13<\/th>\r\n    <th class=\"tg-wa1i\">S11<\/th>\r\n  <\/tr><\/thead>\r\n<tbody>\r\n  <tr>\r\n    <td class=\"tg-nrix\">50<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"16\">35<br><br><br><br>38.5<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"16\">0.4<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"16\">Dyn11<br><br><br><br>Yyn0<\/td>\r\n    <td class=\"tg-nrix\">0.16<\/td>\r\n    <td class=\"tg-nrix\">0.112<\/td>\r\n    <td class=\"tg-nrix\">1.20\/1.14<\/td>\r\n    <td class=\"tg-nrix\">1.20\/1.14<\/td>\r\n    <td class=\"tg-nrix\" rowspan=\"16\">6.5<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">100<\/td>\r\n    <td class=\"tg-nrix\">0.23<\/td>\r\n    <td class=\"tg-nrix\">0.161<\/td>\r\n    <td class=\"tg-nrix\">2.01\/1.91<\/td>\r\n    <td class=\"tg-nrix\">2.01\/1.91<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">125<\/td>\r\n    <td class=\"tg-nrix\">0.27<\/td>\r\n    <td class=\"tg-nrix\">0.189<\/td>\r\n    <td class=\"tg-nrix\">2.37\/2.26<\/td>\r\n    <td class=\"tg-nrix\">2.37\/2.26<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">160<\/td>\r\n    <td class=\"tg-nrix\">0.28<\/td>\r\n    <td class=\"tg-nrix\">0.196<\/td>\r\n    <td class=\"tg-nrix\">2.82\/2.68<\/td>\r\n    <td class=\"tg-nrix\">2.82\/2.68<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">200<\/td>\r\n    <td class=\"tg-nrix\">0.34<\/td>\r\n    <td class=\"tg-nrix\">0.238<\/td>\r\n    <td class=\"tg-nrix\">3.32\/3.16<\/td>\r\n    <td class=\"tg-nrix\">3.32\/3.16<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">250<\/td>\r\n    <td class=\"tg-nrix\">0.4<\/td>\r\n    <td class=\"tg-nrix\">0.28<\/td>\r\n    <td class=\"tg-nrix\">3.95\/3.76<\/td>\r\n    <td class=\"tg-nrix\">3.95\/3.76<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">315<\/td>\r\n    <td class=\"tg-nrix\">0.48<\/td>\r\n    <td class=\"tg-nrix\">0.336<\/td>\r\n    <td class=\"tg-nrix\">4.75\/4.53<\/td>\r\n    <td class=\"tg-nrix\">4.75\/4.53<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">400<\/td>\r\n    <td class=\"tg-nrix\">0.58<\/td>\r\n    <td class=\"tg-nrix\">0.406<\/td>\r\n    <td class=\"tg-nrix\">5.74\/5.47<\/td>\r\n    <td class=\"tg-nrix\">5.74\/5.47<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">500<\/td>\r\n    <td class=\"tg-nrix\">0.68<\/td>\r\n    <td class=\"tg-nrix\">0.476<\/td>\r\n    <td class=\"tg-nrix\">6.91\/6.58<\/td>\r\n    <td class=\"tg-nrix\">6.91\/6.58<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">630<\/td>\r\n    <td class=\"tg-nrix\">0.83<\/td>\r\n    <td class=\"tg-nrix\">0.581<\/td>\r\n    <td class=\"tg-nrix\">7.86<\/td>\r\n    <td class=\"tg-nrix\">7.86<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">800<\/td>\r\n    <td class=\"tg-nrix\">0.98<\/td>\r\n    <td class=\"tg-nrix\">0.686<\/td>\r\n    <td class=\"tg-nrix\">9.4<\/td>\r\n    <td class=\"tg-nrix\">9.4<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">1000<\/td>\r\n    <td class=\"tg-nrix\">1.15<\/td>\r\n    <td class=\"tg-nrix\">0.805<\/td>\r\n    <td class=\"tg-nrix\">11.5<\/td>\r\n    <td class=\"tg-nrix\">11.5<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">1250<\/td>\r\n    <td class=\"tg-nrix\">1.4<\/td>\r\n    <td class=\"tg-nrix\">0.98<\/td>\r\n    <td class=\"tg-nrix\">13.9<\/td>\r\n    <td class=\"tg-nrix\">13.9<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">1600<\/td>\r\n    <td class=\"tg-nrix\">1.69<\/td>\r\n    <td class=\"tg-nrix\">1.183<\/td>\r\n    <td class=\"tg-nrix\">16.6<\/td>\r\n    <td class=\"tg-nrix\">16.6<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">2000<\/td>\r\n    <td class=\"tg-nrix\">1.99<\/td>\r\n    <td class=\"tg-nrix\">1.393<\/td>\r\n    <td class=\"tg-nrix\">19.7<\/td>\r\n    <td class=\"tg-nrix\">19.7<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-nrix\">2500<\/td>\r\n    <td class=\"tg-nrix\">2.36<\/td>\r\n    <td class=\"tg-nrix\">1.652<\/td>\r\n    <td class=\"tg-nrix\">23.2<\/td>\r\n    <td class=\"tg-nrix\">23.2<\/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. Qu'est-ce qu'un transformateur redresseur ? En quoi diff\u00e8re-t-il d'un transformateur de puissance classique ? <\/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>Un transformateur de redressement est un transformateur sp\u00e9cial destin\u00e9 \u00e0 alimenter les syst\u00e8mes de redressement. Sa fonction principale consiste \u00e0 convertir le courant alternatif provenant du r\u00e9seau \u00e9lectrique en courant alternatif \u00e0 la tension appropri\u00e9e requise par les redresseurs (par exemple, les thyristors ou les diodes), apr\u00e8s quoi les redresseurs fournissent du courant continu.<\/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 calculer et choisir la puissance d'un transformateur redresseur ? <\/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>\u2460 Le choix de la puissance d'un transformateur redresseur est essentiel ; la formule de calcul est la suivante :<\/p><p>P = K \u00d7 Ud \u00d7 Id \/ \u03b7 (kVA)<\/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. Le transformateur du redresseur pr\u00e9sente une \u00e9l\u00e9vation de temp\u00e9rature excessive en fonctionnement, au point d'\u00eatre m\u00eame br\u00fblant au toucher. Quelle en est la cause ? <\/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><strong><b>\u2460<\/b><\/strong><strong><b>Courants harmoniques<\/b><\/strong>: Les nombreux courants harmoniques g\u00e9n\u00e9r\u00e9s par les charges des redresseurs entra\u00eenent une augmentation des pertes suppl\u00e9mentaires dans le cuivre et dans le fer, ce qui constitue la principale raison.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Fonctionnement en surcharge<\/b><\/strong>: Le courant de charge r\u00e9el d\u00e9passe la valeur nominale pendant une dur\u00e9e prolong\u00e9e.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Panne du syst\u00e8me de refroidissement<\/b><\/strong>: Par exemple, le ventilateur de refroidissement \u00e0 circulation d'air forc\u00e9e d'un transformateur \u00e0 huile cesse de fonctionner, le radiateur est encrass\u00e9 et obstru\u00e9, ou la canalisation est bouch\u00e9e ; le conduit d'air d'un transformateur de type sec est obstru\u00e9 ou la ventilation ambiante est insuffisante.<\/p><p><strong><b>\u2463<\/b><\/strong><strong><b>D\u00e9fauts internes<\/b><\/strong>: Par exemple, des courts-circuits entre spires dans les enroulements, ou une mise \u00e0 la terre en plusieurs points du noyau de fer entra\u00eenant une surchauffe locale.<\/p><p><strong><b>\u2464<\/b><\/strong><strong><b>Mauvais contact<\/b><\/strong>: La r\u00e9sistance de contact au niveau des points de raccordement des fils d'enroulement ou des travers\u00e9es est trop \u00e9lev\u00e9e, ce qui entra\u00eene un d\u00e9gagement de chaleur.<\/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. Le transformateur redresseur fait beaucoup de bruit lorsqu'il fonctionne. Est-ce normal ? <\/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>Le bruit de fonctionnement d'un transformateur redresseur est g\u00e9n\u00e9ralement l\u00e9g\u00e8rement plus \u00e9lev\u00e9 que celui d'un transformateur de puissance, mais un bruit anormalement fort est g\u00e9n\u00e9ralement le signe d'un dysfonctionnement. Parmi les causes possibles, on peut citer :<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Probl\u00e8mes li\u00e9s au noyau de fer<\/b><\/strong>: Des colliers de fixation du noyau de fer mal serr\u00e9s, des t\u00f4les d'acier au silicium non comprim\u00e9es, ce qui entra\u00eene une r\u00e9sonance sous l'action d'un champ magn\u00e9tique.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Magn\u00e9tisation par polarisation en courant continu<\/b><\/strong>: En raison d'un d\u00e9clenchement asym\u00e9trique du redresseur ou de temp\u00eates g\u00e9omagn\u00e9tiques, des composantes continues circulent dans le noyau de fer, provoquant une saturation sur un demi-cycle de ce dernier, ce qui intensifie la magn\u00e9tostriction et augmente consid\u00e9rablement le bruit.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Harmoniques de charge<\/b><\/strong>: Les champs magn\u00e9tiques harmoniques provoquent des vibrations au niveau de certains composants, tels que la coque et les colliers de serrage.<\/p><p><strong><b>\u2463<\/b><\/strong><strong><b>Probl\u00e8mes de remontoir<\/b><\/strong>: Les enroulements se desserrent sous l'effet du courant \u00e9lectrique.<\/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 dois-je faire si la tension de sortie du transformateur redresseur est instable ? <\/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>Les fluctuations de tension \u00e0 la sortie d'un transformateur redresseur ne sont g\u00e9n\u00e9ralement pas dues au transformateur lui-m\u00eame. Il convient d'effectuer d'abord les v\u00e9rifications suivantes :<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Tension du r\u00e9seau<\/b><\/strong>: V\u00e9rifiez si la tension du r\u00e9seau \u00e9lectrique de niveau sup\u00e9rieur est stable.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Dispositif redresseur<\/b><\/strong>: V\u00e9rifiez si le syst\u00e8me de commande de d\u00e9clenchement du redresseur (par exemple, un thyristor) fonctionne normalement, et si les impulsions sont sym\u00e9triques et stables.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Variations de charge<\/b><\/strong>: V\u00e9rifiez si la charge en courant continu subit des fluctuations importantes.<\/p><p><strong><b>\u2463<\/b><\/strong><strong><b>Commutateur de prises<\/b><\/strong>: V\u00e9rifiez si la position de l'engrenage du changeur de prises hors circuit est desserr\u00e9e ou d\u00e9cal\u00e9e.<\/p><p><strong><b>\u2464<\/b><\/strong><strong><b>Points de connexion<\/b><\/strong>: V\u00e9rifiez si tous les points de raccordement \u00e9lectriques principaux et secondaires sont desserr\u00e9s ou oxyd\u00e9s.<\/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. Qu'est-ce qu'un \" transformateur redresseur \u00e0 d\u00e9phasage \" ? Pourquoi est-il n\u00e9cessaire ? <\/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>Un transformateur redresseur \u00e0 d\u00e9phasage est un transformateur redresseur sp\u00e9cial qui g\u00e9n\u00e8re plusieurs ensembles de tensions secondaires de phases diff\u00e9rentes gr\u00e2ce \u00e0 des enroulements d\u00e9phas\u00e9s (par exemple, un montage en triangle \u00e9tendu). Son objectif principal est de permettre un redressement multipuls\u00e9 (par exemple, \u00e0 12, 24 ou 36 impulsions). Chaque jeu suppl\u00e9mentaire de d\u00e9phasages permet d\u2019annuler des ordres sp\u00e9cifiques d\u2019harmoniques. Les principaux avantages sont les suivants : r\u00e9duction significative du courant harmonique inject\u00e9 dans le r\u00e9seau \u00e9lectrique afin de respecter les exigences de qualit\u00e9 de l\u2019\u00e9nergie, r\u00e9duction de l\u2019ondulation de la tension de sortie redress\u00e9e pour am\u00e9liorer la qualit\u00e9 de l\u2019\u00e9nergie c\u00f4t\u00e9 courant continu, et augmentation du rendement et de la capacit\u00e9 du syst\u00e8me.<\/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. Le transformateur redresseur \u00e0 bain d'huile pr\u00e9sente une fuite d'huile. 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-2186\" class=\"elementor-element elementor-element-09a50ce e-con-full e-flex e-con e-child\" data-id=\"09a50ce\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f9d6bbd elementor-widget elementor-widget-text-editor\" data-id=\"f9d6bbd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u2460 Les fuites d'huile doivent \u00eatre trait\u00e9es sans d\u00e9lai : signalez-les imm\u00e9diatement et prenez les mesures d'isolation n\u00e9cessaires pour garantir la s\u00e9curit\u00e9.<\/p><p>\u2461 <strong><b>Localisez le point de fuite<\/b><\/strong>: Les points de fuite courants comprennent les soudures, les joints d'\u00e9tanch\u00e9it\u00e9 (par exemple au niveau des passe-parois, des vannes et des brides), les vannes papillon et les tuyaux de radiation.<\/p><p>\u2462 <strong><b>Traitement temporaire<\/b><\/strong>: En cas de l\u00e9g\u00e8re fuite d'huile, nettoyez la surface et utilisez une colle sp\u00e9ciale anti-fuite pour effectuer une \u00e9tanch\u00e9ification provisoire.<\/p><p>\u2463 <strong><b>Entretien professionnel<\/b><\/strong>: En cas de fuite d'huile importante due \u00e0 des fissures de soudure ou n\u00e9cessitant le remplacement des joints, les travaux de r\u00e9paration par soudure ou de remplacement des joints doivent \u00eatre effectu\u00e9s par du personnel qualifi\u00e9, apr\u00e8s mise hors tension et vidange de l'huile. Toute intervention sur l'installation sous tension est strictement interdite.<\/p><p>\u2464 <strong><b>Faire l'appoint d'huile<\/b><\/strong>: Une fois le traitement termin\u00e9, proc\u00e9dez \u00e0 une mise sous vide, puis remplissez le transformateur avec de l'huile neuve de la m\u00eame marque, dont les r\u00e9sultats d'essais sont conformes aux normes, jusqu'au niveau d'huile sp\u00e9cifi\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/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 redresseur est un transformateur de puissance sp\u00e9cial destin\u00e9 aux syst\u00e8mes de redressement, largement utilis\u00e9 dans la production industrielle et dans d'autres domaines. Le principe de fonctionnement d'un transformateur redresseur est identique \u00e0 celui d'un transformateur ordinaire. S'appuyant sur la loi de l'induction \u00e9lectromagn\u00e9tique, il convertit la tension alternative du c\u00f4t\u00e9 primaire (c\u00f4t\u00e9 r\u00e9seau) en tension alternative du c\u00f4t\u00e9 secondaire (c\u00f4t\u00e9 valve), puis convertit le courant alternatif issu du c\u00f4t\u00e9 valve en courant continu \u00e0 l'aide de composants redresseurs.<\/p>","protected":false},"featured_media":3491,"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 Introduction\",\"_id\":\"28ed36e\"},{\"tab_title\":\"Feature\",\"_id\":\"44a77a3\"},{\"tab_title\":\"Structure\",\"_id\":\"4e5d404\"},{\"tab_title\":\"Specification\",\"_id\":\"04585e4\"},{\"tab_title\":\"Diagram\",\"_id\":\"ebc3184\"},{\"tab_title\":\"FAQ\",\"_id\":\"0b0e7cd\"}],\"tabs_title_background_color_background\":\"classic\",\"tabs_title_background_color_hover_color\":\"#0055AA\",\"title_text_color\":\"#000000\",\"__globals__\":{\"title_text_color\":\"globals\\\/colors?id=text\",\"tabs_title_background_color_hover_color\":\"globals\\\/colors?id=primary\",\"tabs_title_background_color_color\":\"globals\\\/colors?id=556a01c\",\"tabs_title_background_color_active_color\":\"globals\\\/colors?id=primary\",\"title_typography_typography\":\"globals\\\/typography?id=d5375a8\"},\"tabs_justify_horizontal\":\"start\",\"tabs_title_space_between_tablet\":{\"unit\":\"em\",\"size\":\"\",\"sizes\":[]},\"tabs_title_space_between_mobile\":{\"unit\":\"em\",\"size\":\"\",\"sizes\":[]},\"tabs_title_spacing_tablet\":{\"unit\":\"em\",\"size\":\"\",\"sizes\":[]},\"tabs_title_spacing_mobile\":{\"unit\":\"em\",\"size\":\"\",\"sizes\":[]},\"_padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"_element_custom_width\":{\"unit\":\"%\",\"size\":97,\"sizes\":[]}},\"elements\":[{\"id\":\"63d4ba4\",\"elType\":\"container\",\"settings\":{\"_title\":\"Tab #1\",\"content_width\":\"full\",\"flex_direction\":\"column\",\"border_border\":\"solid\",\"border_width\":{\"unit\":\"px\",\"top\":\"1\",\"right\":\"1\",\"bottom\":\"1\",\"left\":\"1\",\"isLinked\":true},\"padding\":{\"unit\":\"px\",\"top\":\"50\",\"right\":\"30\",\"bottom\":\"50\",\"left\":\"30\",\"isLinked\":false},\"__globals__\":{\"border_color\":\"globals\\\/colors?id=secondary\"},\"padding_mobile\":{\"unit\":\"px\",\"top\":\"10\",\"right\":\"10\",\"bottom\":\"10\",\"left\":\"10\",\"isLinked\":true}},\"elements\":[{\"id\":\"76c97e8\",\"elType\":\"widget\",\"settings\":{\"title\":\"Brief Introduction\",\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=204d764\"}},\"elements\":[],\"widgetType\":\"heading\"},{\"id\":\"40fb5fa\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p><strong><b>\\u2160. Product Introduction<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Executive Standards<\\\/b><\\\/strong><\\\/p><p>International Standards: IEC 60076-1~5<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Voltage Levels<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>High-voltage side<\\\/b><\\\/strong>: Ranging from 0.4kV to 35kV ( 10kV, 20kV, 35kV). For extra-large rectifier transformers used in electrolysis, the voltage can reach 110kV~220kV.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Low-voltage side<\\\/b><\\\/strong>: Depending on application scenarios, the common range is 600V~1500V (in the electrolysis industry), and in the electrostatic precipitator field, the DC voltage can reach 60kV~90kV.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Voltage Regulation Methods<\\\/b><\\\/strong><\\\/p><p><strong><b>On-load voltage regulation<\\\/b><\\\/strong>: Realizes stepless regulation through a 35-level continuous fine-coarse voltage regulating switch, suitable for scenarios requiring frequent voltage regulation ( electrolytic aluminum production).<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>Off-circuit voltage regulation<\\\/b><\\\/strong>: Manual adjustment via a tap changer, suitable for fixed load requirements ( urban rail transit).<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>High-voltage Tap Range<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Conventional range<\\\/b><\\\/strong>: \\u00b12\\u00d72.5% (a total of 5 taps), applicable to scenarios where the grid voltage fluctuates by \\u00b15%.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Special design<\\\/b><\\\/strong>: Some transformers for electrolysis can be extended to \\u00b110% to meet the needs of extreme voltage fluctuations.<\\\/p><p><strong><b>6.<\\\/b><\\\/strong><strong><b>Rated Capacity<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Small capacity<\\\/b><\\\/strong>: 30kVA~2500kVA (used in electroplating, electrical machining fields).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Large capacity<\\\/b><\\\/strong>: 16000kVA~180000kVA (specialized products for electrolytic aluminum from enterprises such as TBEA).<\\\/p><p><strong><b>7.<\\\/b><\\\/strong><strong><b>Frequency<\\\/b><\\\/strong>: 50Hz or 60Hz<\\\/p><p><strong><b>8.<\\\/b><\\\/strong><strong><b>Phase Number<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Three-phase<\\\/b><\\\/strong>: Mainstream configuration, suitable for high-power industrial applications ( electrolysis, traction).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Single-phase<\\\/b><\\\/strong>: Used in low-power scenarios ( electrostatic precipitators, small electroplating equipment).<\\\/p><p><strong><b>9.<\\\/b><\\\/strong><strong><b>Connection Groups<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Common types<\\\/b><\\\/strong>: Dyn11 (strong harmonic suppression capability), Yyn0 (neutral point grounded), Dy5 (phase-shifted rectification).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Special design<\\\/b><\\\/strong>: Multi-winding phase-shifted connection (\\u00b17.5\\u00b0 phase shift), which can form a 24-pulse rectifier system.<\\\/p><p><strong><b>10.<\\\/b><\\\/strong><strong><b>Impedance Voltage<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Conventional range<\\\/b><\\\/strong>: 5%~10% (adjusted according to applications). Transformers for electrolysis are usually designed with 7%~8% to limit short-circuit current.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>High-impedance design<\\\/b><\\\/strong>: In the electrostatic precipitator field, the impedance can reach more than 12%, replacing external reactors.<\\\/p><p><strong><b>11.<\\\/b><\\\/strong><strong><b>Cooling Methods<\\\/b><\\\/strong><\\\/p><p><strong><b>Natural oil circulation (ON):<\\\/b><\\\/strong>\\u00a0Suitable for small-capacity transformers.<\\\/p><p><strong><b>Forced oil circulation (OF):<\\\/b><\\\/strong>\\u00a0Equipped with radiators, used for large-capacity transformers.<\\\/p><p><strong><b>12.<\\\/b><\\\/strong><strong><b>Oil-immersed type<\\\/b><\\\/strong>:<\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Dry type<\\\/b><\\\/strong>: Epoxy casting or NOMEX paper insulation, with AN\\\/AF (natural air cooling\\\/forced air cooling) and IP20~IP54 protection levels.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Water cooling<\\\/b><\\\/strong>: Direct water-cooled windings, suitable for high-power density scenarios (e.g., high-voltage frequency converters).<\\\/p><p><strong><b>13.<\\\/b><\\\/strong><strong><b>Protection Levels<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>IP20<\\\/b><\\\/strong>: For indoor use, protecting against solid foreign objects larger than 12mm.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>IP54<\\\/b><\\\/strong>: For outdoor or dusty environments, dust-proof and splash-proof ( in the metallurgical industry).<\\\/p><p><strong><b>14.<\\\/b><\\\/strong><strong><b>Insulation Classes<\\\/b><\\\/strong><\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Class F<\\\/b><\\\/strong>: Heat resistance up to 155\\u2103, temperature rise \\u2264100K, the mainstream choice for epoxy-cast dry-type transformers.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Class H<\\\/b><\\\/strong>: Heat resistance up to 180\\u2103, NOMEX paper insulation, suitable for high-temperature environments ( petrochemical industry).<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Class B<\\\/b><\\\/strong>: Heat resistance up to 130\\u2103, commonly used in traditional oil-immersed transformers.<\\\/p><p><strong><b>\\u2161. Operating Conditions<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Altitude<\\\/b><\\\/strong>: \\u22641000m (correction in accordance with GB3859 is required if exceeding this altitude).<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Ambient Temperature<\\\/b><\\\/strong>: -25\\u2103~+40\\u2103, humidity \\u226490% (no condensation).<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Installation Method<\\\/b><\\\/strong>: Indoor\\\/outdoor (with IP54 protection), and wall-mounted installation is supported (for dry-type structures).<\\\/p><p><strong><b>\\u2162. Test Types<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Type Tests<\\\/b><\\\/strong>: Including temperature rise test (AN\\\/AF mode), short-circuit withstand capability test (1.5 times rated current for 5 seconds).<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Factory Tests<\\\/b><\\\/strong>: Insulation resistance test (using a 2500V megohmmeter), winding DC resistance measurement (deviation \\u2264\\u00b12%).<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Special Tests<\\\/b><\\\/strong>: 72-hour salt spray test (for coastal areas), partial discharge measurement (\\u226450pC).<\\\/p><p><strong><b>\\u2163. Component Inspection<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Key Components<\\\/b><\\\/strong>:<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Windings<\\\/b><\\\/strong>: Eddy current loss analysis, interlayer insulation strength test.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>Cooling System<\\\/b><\\\/strong>: Flow test (for forced oil circulation), fan performance verification.<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>Raw Material Certification<\\\/b><\\\/strong>: Silicon steel sheets must provide UL certification, and epoxy resin must comply with the IEC 60455 standard.<\\\/p><p><strong><b>\\u2164. Certification Types<\\\/b><\\\/strong><\\\/p><p>International Certifications: CE (EU), UL (North America), TUV (Germany), CSA (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. Product Features<\\\/b><\\\/strong><\\\/p><p><strong><b>1.<\\\/b><\\\/strong><strong><b>Reliable Insulation<\\\/b><\\\/strong>: A reasonable and reliable insulation level is determined based on load characteristics, grid voltage fluctuations, and other factors.<\\\/p><p><strong><b>2.<\\\/b><\\\/strong><strong><b>Insulation Model<\\\/b><\\\/strong>: The product's environmental safety factor is \\u22651.67, which can fully ensure the stability of electrical performance.<\\\/p><p><strong><b>3.<\\\/b><\\\/strong><strong><b>High Dynamic Stability<\\\/b><\\\/strong>: The windings have high mechanical strength. During the design and manufacturing process, dynamic instability sources caused by leakage flux and other factors are eliminated, enabling the transformer to meet the requirements of harsh load environments.<\\\/p><p><strong><b>4.<\\\/b><\\\/strong><strong><b>Strong Short-circuit Resistance<\\\/b><\\\/strong>: Special structural design and manufacturing processes are adopted, such as winding high-strength tight belts around the outer surface of the windings, giving it good short-circuit resistance and the ability to withstand the impact of short-circuit current.<\\\/p><p><strong><b>5.<\\\/b><\\\/strong><strong><b>Good Thermal Stability<\\\/b><\\\/strong>: With advanced product design, the heating parts and hot-spot temperature rise are strictly controlled. Copper conductors are used for coils and leads, and the current density is set low. The main temperature rise indicators are at least 5\\u2103 lower than the national standard.<\\\/p><p><strong><b>6.<\\\/b><\\\/strong><strong><b>Strong Overload Capacity<\\\/b><\\\/strong>: It can operate safely for a long time under rated load, and can also operate safely with full load under 110% overvoltage for a long time. The terminals of the transformer connected to the motor can withstand 1.5 times the rated current for 5 seconds.<\\\/p><p><strong><b>7.<\\\/b><\\\/strong><strong><b>Flexible Voltage Regulation<\\\/b><\\\/strong>: Based on principles such as phase-controlled voltage regulation, self-saturating reactors or thyristors can be used to adjust the output voltage of the transformer, realizing stepless voltage regulation to meet the voltage requirements of different loads.<\\\/p><p><strong><b>8.<\\\/b><\\\/strong><strong><b>High Efficiency<\\\/b><\\\/strong>: Low-loss design is adopted, such as selecting high-magnetic-conductivity silicon steel sheets and optimizing the winding structure. The full-load efficiency is \\u226598.5%, meeting the first-level energy efficiency standard and achieving significant energy-saving effects.<\\\/p><p><strong><b>9.<\\\/b><\\\/strong><strong><b>Compact Structure<\\\/b><\\\/strong>: Epoxy resin vacuum casting or open structure design is adopted, reducing the volume by 40% compared with traditional oil-immersed transformers. It supports wall-mounted installation, saving installation space.<\\\/p><p><strong><b>10.<\\\/b><\\\/strong><strong><b>Low Noise<\\\/b><\\\/strong>: High-quality materials and advanced manufacturing processes are used, such as special dipping processes and reasonable iron core lamination methods, effectively reducing vibration and noise during operation. The noise is usually&lt;65dB.<\\\/p><p><strong><b>11.<\\\/b><\\\/strong><strong><b>Good Environmental Performance<\\\/b><\\\/strong>: Some rectifier transformers adopt a dry-type structure, which has the characteristics of heat resistance and moisture resistance, does not produce toxic gases, and is environmentally friendly. Moreover, the protection level can be selected to adapt to different usage environments.<\\\/p><p><strong><b>\\u2161<\\\/b><\\\/strong><strong><b>. Product Advantages<\\\/b><\\\/strong><\\\/p><p>1.Rectifier transformers are key equipment for realizing AC-to-DC conversion in power electronic systems. Their design and performance directly affect the stability, efficiency, and safety of rectifier systems. The following is a detailed analysis of the product advantages of rectifier transformers from multiple dimensions:<\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Flexible Winding Design<\\\/b><\\\/strong><\\\/p><p>The primary side (AC input) and secondary side (connected to the rectifier) windings of rectifier transformers can be designed with different turns ratios and wiring methods ( star, delta, zigzag) according to the type of rectifier circuit ( single-phase half-wave, full-wave, three-phase bridge), ensuring matching with the electrical parameters of rectifier components (diodes, thyristors, etc.), and reducing circuit losses and interference.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Multi-winding Output Capability<\\\/b><\\\/strong><\\\/p><p>Multiple sets of secondary windings can be designed to meet the needs of multiple sets of rectifier circuits working simultaneously ( scenarios requiring multiple sets of DC power supplies in industrial electrolysis and electroplating equipment), simplifying system wiring and improving space utilization.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Leakage reactance can limit the amplitude of harmonic currents<\\\/b><\\\/strong><\\\/p><p>Multiple rectifier transformers are combined with different phase-shifting angles, which can make harmonics cancel each other out and significantly reduce the total harmonic distortion rate.<\\\/p><p><strong><b>\\u2463<\\\/b><\\\/strong><strong><b>Improving Power Factor<\\\/b><\\\/strong><\\\/p><p>A reasonably designed rectifier transformer can be combined with a filter device to improve the inductive load characteristics of the rectifier system, reduce reactive power loss, increase the power factor on the power grid side, and lower electricity costs.<\\\/p><p><strong><b>\\u2464<\\\/b><\\\/strong><strong><b>Adaptation to Overcurrent and Overvoltage Protection<\\\/b><\\\/strong><\\\/p><p>Overcurrent protection windings can be integrated into the winding design or combined with relay protection devices. When overload or short-circuit occurs in the rectifier circuit, the power supply can be quickly cut off or the fault current can be limited, reducing the risk of equipment damage.<\\\/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>1.The production process of rectifier transformers is a core link to ensure their adaptation to nonlinear rectifier loads, suppression of harmonic interference, and guarantee of long-term stable operation. It covers the entire process of precision control from raw material selection to finished product testing. The following is a detailed description of its main production processes:<\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Silicon Steel Sheet Cutting<\\\/b><\\\/strong>:<\\\/p><p>CNC transverse shearing lines are used for precise cutting to ensure the sheet size deviation is \\u2264\\u00b10.1mm and the cutting burr is \\u22640.02mm (to avoid increased eddy current loss).<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Iron Core Lamination<\\\/b><\\\/strong>:<\\\/p><p>The \\\"non-laminated upper yoke\\\" process is adopted (first laminating the iron core column, then inserting the upper yoke) to reduce lamination stress; the lamination factor is controlled between 0.96~0.97 (to improve magnetic conductivity).Insulating screws or binding tapes are used for fastening, with uniform fastening force (axial compression \\u22641%) to avoid iron core vibration noise (no-load noise \\u226465dB).<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Iron Core Grounding Treatment<\\\/b><\\\/strong>:<\\\/p><p>Single-point grounding (a grounding plate is led out from the bottom of the iron core) to prevent\\u00a0 caused by multi-point grounding; the grounding resistance is \\u22641\\u03a9.<\\\/p><p><strong><b>\\u2463<\\\/b><\\\/strong><strong><b>Iron Core Manufacturing Process<\\\/b><\\\/strong>:<\\\/p><p>The iron core is the core of the magnetic circuit, and the process focuses on reducing iron loss, minimizing noise, and ensuring structural strength.<\\\/p><p><strong><b>\\u2464<\\\/b><\\\/strong><strong><b>Winding Manufacturing Process<\\\/b><\\\/strong>:<\\\/p><p>The winding is the core of the circuit and needs to meet the requirements of voltage resistance, short-circuit resistance, low loss, and harmonic adaptation:Dry-type transformers: The windings are cast with epoxy resin (vacuum degassing \\u2264-0.095MPa, curing temperature 130\\u2103\\u00d78h) to ensure no bubbles in the insulation layer (bubble diameter \\u22640.5mm).Oil-immersed transformers: The windings undergo pre-drying (105\\u2103\\u00d748h, vacuum degree \\u226410Pa), and after dipping in paint, they are dried (120\\u2103\\u00d724h) to improve the integrity of the insulation.<\\\/p><p><strong><b>\\u2465<\\\/b><\\\/strong><strong><b>Coil Design and Winding<\\\/b><\\\/strong>:<\\\/p><p>According to the phase-shifted rectification requirements (e.g., 12\\\/24 pulses), multi-winding segmented winding is adopted to ensure the phase difference accuracy of each winding is \\u2264\\u00b10.5\\u00b0.The low-voltage winding (rectifier side) is wound using the foil method (copper foil thickness 0.3~0.5mm) to improve heat dissipation efficiency; the high-voltage winding is wound using the continuous or\\u00a0 method to enhance insulation strength.<\\\/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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#1\",\"content_width\":\"full\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true}},\"elements\":[{\"id\":\"0f85fed\",\"elType\":\"widget\",\"settings\":{\"html\":\"<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-wa1i{font-weight:bold;text-align:center;vertical-align:middle}\\r\\n.tg .tg-uzvj{border-color:inherit;font-weight:bold;text-align:center;vertical-align:middle}\\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-uzvj\\\" rowspan=\\\"2\\\">Rated Capacity<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" rowspan=\\\"2\\\">H.V.<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" rowspan=\\\"2\\\">L.V.<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" rowspan=\\\"2\\\">Connection Symbol<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" colspan=\\\"2\\\">No-load loss(kw)<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" colspan=\\\"2\\\">On-load loss(kw)<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">Short circuit impedance<\\\/th>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <th class=\\\"tg-wa1i\\\">S11<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S11<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S11<\\\/th>\\r\\n  <\\\/tr><\\\/thead>\\r\\n<tbody>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">50<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">35<br><br><br><br>38.5<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">0.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">Dyn11<br><br><br><br>Yyn0<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.16<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.112<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.20\\\/1.14<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.20\\\/1.14<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">6.5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.23<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.161<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.01\\\/1.91<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.01\\\/1.91<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">125<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.27<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.189<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.37\\\/2.26<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.37\\\/2.26<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">160<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.28<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.196<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.82\\\/2.68<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.82\\\/2.68<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.34<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.238<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.32\\\/3.16<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.32\\\/3.16<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.28<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.95\\\/3.76<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.95\\\/3.76<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">315<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.48<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.336<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4.75\\\/4.53<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4.75\\\/4.53<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">400<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.58<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.406<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5.74\\\/5.47<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5.74\\\/5.47<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.68<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.476<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6.91\\\/6.58<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6.91\\\/6.58<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">630<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.83<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.581<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7.86<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7.86<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">800<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.98<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.686<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">9.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">9.4<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.15<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.805<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">11.5<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">11.5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.98<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">13.9<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">13.9<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.69<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.183<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">16.6<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">16.6<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">2000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.99<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.393<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">19.7<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">19.7<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">2500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.36<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.652<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">23.2<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">23.2<\\\/td>\\r\\n  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What is the difference between it and an ordinary power transformer?\",\"_id\":\"1d2b564\"},{\"item_title\":\"2.How to calculate and select the capacity of a rectifier transformer?\",\"_id\":\"6187cb3\"},{\"item_title\":\"3.The rectifier transformer has an excessively high temperature rise during operation, even feeling hot to the touch. What is the reason?\",\"_id\":\"9244a66\"},{\"item_title\":\"4.The rectifier transformer makes a lot of noise during operation. Is this normal?\",\"_id\":\"b474fe0\"},{\"item_title\":\"5.What should I do if the output voltage of the rectifier transformer is unstable?\",\"_id\":\"bab7d20\"},{\"item_title\":\"6.What is a \\\"phase-shifted rectifier transformer\\\"? Why is it needed?\",\"_id\":\"a2a227a\"},{\"item_title\":\"7.The oil-immersed rectifier transformer is leaking oil. How to handle this?\",\"_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>A rectifier transformer is a special transformer dedicated to powering rectifier systems. Its core function is to convert the AC power from the power grid into AC power with a suitable voltage required by rectifiers (e.g., thyristors, diodes), and then the rectifiers output DC power.<\\\/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>\\u2460 The selection of the capacity of a rectifier transformer is crucial, and the calculation formula is:<\\\/p><p>P = K \\u00d7 Ud \\u00d7 Id \\\/ \\u03b7 (kVA)<\\\/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\":\"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><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Harmonic currents<\\\/b><\\\/strong>: A large number of harmonic currents generated by rectifier loads lead to increased additional copper loss and iron loss, which is the most important reason.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Overload operation<\\\/b><\\\/strong>: The actual load current exceeds the rated value for a long time.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Cooling system failure<\\\/b><\\\/strong>: For example, the forced air cooling fan of an oil-immersed transformer stops running, the radiator is dirty and blocked, or the pipeline is blocked; the air duct of a dry-type transformer is blocked or the ambient ventilation is poor.<\\\/p><p><strong><b>\\u2463<\\\/b><\\\/strong><strong><b>Internal faults<\\\/b><\\\/strong>: Such as inter-turn short circuits in windings, multi-point grounding of the iron core leading to local overheating.<\\\/p><p><strong><b>\\u2464<\\\/b><\\\/strong><strong><b>Poor contact<\\\/b><\\\/strong>: The contact resistance at the connection points of the winding leads or bushings is too large, causing heat generation.<\\\/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>The operating noise of a rectifier transformer is usually slightly higher than that of a power transformer, but abnormally loud noise is usually abnormal. Possible reasons include:<\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Iron core issues<\\\/b><\\\/strong>: Loose iron core clamps, uncompressed silicon steel sheets, resulting in resonance under the action of a magnetic field.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>DC bias magnetization<\\\/b><\\\/strong>: Due to asymmetric triggering of the rectifier device or geomagnetic storms, DC components flow into the iron core, causing half-cycle saturation of the iron core, intensifying magnetostriction, and drastically increasing noise.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Load harmonics<\\\/b><\\\/strong>: Harmonic magnetic fields cause vibration of components such as the shell and clamps.<\\\/p><p><strong><b>\\u2463<\\\/b><\\\/strong><strong><b>Winding issues<\\\/b><\\\/strong>: The windings become loose under the action of electric power.<\\\/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>Voltage fluctuations at the output of a rectifier transformer are usually not a problem with the transformer itself. The following checks should be conducted first:<\\\/p><p><strong><b>\\u2460<\\\/b><\\\/strong><strong><b>Grid voltage<\\\/b><\\\/strong>: Check whether the voltage of the upper-level power grid is stable.<\\\/p><p><strong><b>\\u2461<\\\/b><\\\/strong><strong><b>Rectifier device<\\\/b><\\\/strong>: Check whether the trigger control system of the rectifier (e.g., thyristor) is normal, and whether the pulses are symmetrical and stable.<\\\/p><p><strong><b>\\u2462<\\\/b><\\\/strong><strong><b>Load changes<\\\/b><\\\/strong>: Check whether the DC load is fluctuating drastically.<\\\/p><p><strong><b>\\u2463<\\\/b><\\\/strong><strong><b>Tap changer<\\\/b><\\\/strong>: Check whether the gear position of the off-circuit tap changer is loose or displaced.<\\\/p><p><strong><b>\\u2464<\\\/b><\\\/strong><strong><b>Connection points<\\\/b><\\\/strong>: Check whether all primary and secondary electrical connection points are loose or oxidized.<\\\/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\":\"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>A phase-shifted rectifier transformer is a special rectifier transformer that generates multiple sets of secondary voltages with different phases through phase-shifted windings (e.g., extended delta connection). Its core purpose is to realize multi-pulse rectification (e.g., 12-pulse, 24-pulse, 36-pulse). Each additional set of phase shifts can cancel out specific orders of harmonics. The main benefits are: greatly reducing the harmonic current injected into the power grid to meet power quality requirements, reducing the ripple of the rectified output voltage to improve the power quality on the DC side, and increasing the system efficiency and capacity.<\\\/p>\",\"_padding\":{\"unit\":\"px\",\"top\":\"20\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":false},\"__globals__\":{\"typography_typography\":\"globals\\\/typography?id=d06f507\"}},\"elements\":[],\"widgetType\":\"text-editor\"}],\"isInner\":true,\"isLocked\":true},{\"id\":\"09a50ce\",\"elType\":\"container\",\"settings\":{\"_title\":\"\\u9879\\u76ee #1\",\"content_width\":\"full\",\"background_background\":\"classic\",\"padding\":{\"unit\":\"px\",\"top\":\"0\",\"right\":\"0\",\"bottom\":\"0\",\"left\":\"0\",\"isLinked\":true},\"__globals__\":{\"background_color\":\"\"}},\"elements\":[{\"id\":\"f9d6bbd\",\"elType\":\"widget\",\"settings\":{\"editor\":\"<p>\\u2460 Oil leakage needs to be handled in a timely manner: Report it immediately and take safety isolation measures.<\\\/p><p>\\u2461 <strong><b>Find the leak point<\\\/b><\\\/strong>: Common leak points include welds, sealing gaskets (e.g., at bushings, valves, flanges), butterfly valves, and radiating pipes.<\\\/p><p>\\u2462 <strong><b>Temporary treatment<\\\/b><\\\/strong>: For slight oil seepage, clean the surface and use special leak-stopping glue for temporary sealing.<\\\/p><p>\\u2463 <strong><b>Professional maintenance<\\\/b><\\\/strong>: For severe oil leakage caused by weld cracks or the need to replace seals, professional personnel must perform welding repair or seal replacement after power failure and oil drainage. Live operation is strictly prohibited.<\\\/p><p>\\u2464 <strong><b>Replenish oil<\\\/b><\\\/strong>: After the treatment is completed, vacuumize and replenish new transformer oil of the same brand and with qualified test results to the specified oil level.<\\\/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}]}],\"isInner\":true,\"isLocked\":true}]}],\"isInner\":false}]"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:7:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1788142414\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_eael_post_view_count":["970"],"_jet_woo_product_video_type":["youtube"],"_jet_woo_product_video_placeholder":[""],"_jet_woo_product_vimeo_video_url":[""],"_jet_woo_product_youtube_video_url":[""],"_jet_woo_product_self_hosted_video":[""],"rank_math_primary_product_brand":["0"],"rank_math_primary_product_cat":["42"],"rank_math_description":["A rectifier transformer is a special power transformer dedicated to rectifier systems, widely used in industrial production and other fields. 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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\\tFeature\\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\\tSpecification\\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\\tDiagram\\t\\t\\t<\\\/span>\\n\\t\\t<\\\/button>\\n\\t\\t\\t\\t<button id=\\\"e-n-tab-title-649863466\\\" class=\\\"e-n-tab-title\\\" aria-selected=\\\"false\\\" data-tab-index=\\\"6\\\" role=\\\"tab\\\" tabindex=\\\"-1\\\" aria-controls=\\\"e-n-tab-content-649863466\\\" style=\\\"--n-tabs-title-order: 6;\\\">\\n\\t\\t\\t\\t\\t\\t<span class=\\\"e-n-tab-title-text\\\">\\n\\t\\t\\t\\tFAQ\\t\\t\\t<\\\/span>\\n\\t\\t<\\\/button>\\n\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t<div class=\\\"e-n-tabs-content\\\">\\n\\t\\t\\t\\t<div id=\\\"e-n-tab-content-649863461\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863461\\\" data-tab-index=\\\"1\\\" style=\\\"--n-tabs-title-order: 1;\\\" class=\\\"e-active elementor-element elementor-element-63d4ba4 e-con-full e-flex e-con e-child\\\" data-id=\\\"63d4ba4\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-76c97e8 elementor-widget elementor-widget-heading\\\" data-id=\\\"76c97e8\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Brief Introduction<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"{"id":"40fb5fa","elType":"widget","settings":{"editor":"<p><strong><b>\u2160. Product Introduction<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Executive Standards<\/b><\/strong><\/p><p>International Standards: IEC 60076-1~5<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Voltage Levels<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>High-voltage side<\/b><\/strong>: Ranging from 0.4kV to 35kV ( 10kV, 20kV, 35kV). For extra-large rectifier transformers used in electrolysis, the voltage can reach 110kV~220kV.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Low-voltage side<\/b><\/strong>: Depending on application scenarios, the common range is 600V~1500V (in the electrolysis industry), and in the electrostatic precipitator field, the DC voltage can reach 60kV~90kV.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Voltage Regulation Methods<\/b><\/strong><\/p><p><strong><b>On-load voltage regulation<\/b><\/strong>: Realizes stepless regulation through a 35-level continuous fine-coarse voltage regulating switch, suitable for scenarios requiring frequent voltage regulation ( electrolytic aluminum production).<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Off-circuit voltage regulation<\/b><\/strong>: Manual adjustment via a tap changer, suitable for fixed load requirements ( urban rail transit).<\/p><p><strong><b>5.<\/b><\/strong><strong><b>High-voltage Tap Range<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Conventional range<\/b><\/strong>: \u00b12\u00d72.5% (a total of 5 taps), applicable to scenarios where the grid voltage fluctuates by \u00b15%.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Special design<\/b><\/strong>: Some transformers for electrolysis can be extended to \u00b110% to meet the needs of extreme voltage fluctuations.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Rated Capacity<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Small capacity<\/b><\/strong>: 30kVA~2500kVA (used in electroplating, electrical machining fields).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Large capacity<\/b><\/strong>: 16000kVA~180000kVA (specialized products for electrolytic aluminum from enterprises such as TBEA).<\/p><p><strong><b>7.<\/b><\/strong><strong><b>Frequency<\/b><\/strong>: 50Hz or 60Hz<\/p><p><strong><b>8.<\/b><\/strong><strong><b>Phase Number<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Three-phase<\/b><\/strong>: Mainstream configuration, suitable for high-power industrial applications ( electrolysis, traction).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Single-phase<\/b><\/strong>: Used in low-power scenarios ( electrostatic precipitators, small electroplating equipment).<\/p><p><strong><b>9.<\/b><\/strong><strong><b>Connection Groups<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Common types<\/b><\/strong>: Dyn11 (strong harmonic suppression capability), Yyn0 (neutral point grounded), Dy5 (phase-shifted rectification).<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Special design<\/b><\/strong>: Multi-winding phase-shifted connection (\u00b17.5\u00b0 phase shift), which can form a 24-pulse rectifier system.<\/p><p><strong><b>10.<\/b><\/strong><strong><b>Impedance Voltage<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Conventional range<\/b><\/strong>: 5%~10% (adjusted according to applications). Transformers for electrolysis are usually designed with 7%~8% to limit short-circuit current.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>High-impedance design<\/b><\/strong>: In the electrostatic precipitator field, the impedance can reach more than 12%, replacing external reactors.<\/p><p><strong><b>11.<\/b><\/strong><strong><b>Cooling Methods<\/b><\/strong><\/p><p><strong><b>Natural oil circulation (ON):<\/b><\/strong>\u00a0Suitable for small-capacity transformers.<\/p><p><strong><b>Forced oil circulation (OF):<\/b><\/strong>\u00a0Equipped with radiators, used for large-capacity transformers.<\/p><p><strong><b>12.<\/b><\/strong><strong><b>Oil-immersed type<\/b><\/strong>:<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Dry type<\/b><\/strong>: Epoxy casting or NOMEX paper insulation, with AN\/AF (natural air cooling\/forced air cooling) and IP20~IP54 protection levels.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Water cooling<\/b><\/strong>: Direct water-cooled windings, suitable for high-power density scenarios (e.g., high-voltage frequency converters).<\/p><p><strong><b>13.<\/b><\/strong><strong><b>Protection Levels<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>IP20<\/b><\/strong>: For indoor use, protecting against solid foreign objects larger than 12mm.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>IP54<\/b><\/strong>: For outdoor or dusty environments, dust-proof and splash-proof ( in the metallurgical industry).<\/p><p><strong><b>14.<\/b><\/strong><strong><b>Insulation Classes<\/b><\/strong><\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Class F<\/b><\/strong>: Heat resistance up to 155\u2103, temperature rise \u2264100K, the mainstream choice for epoxy-cast dry-type transformers.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Class H<\/b><\/strong>: Heat resistance up to 180\u2103, NOMEX paper insulation, suitable for high-temperature environments ( petrochemical industry).<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Class B<\/b><\/strong>: Heat resistance up to 130\u2103, commonly used in traditional oil-immersed transformers.<\/p><p><strong><b>\u2161. Operating Conditions<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Altitude<\/b><\/strong>: \u22641000m (correction in accordance with GB3859 is required if exceeding this altitude).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Ambient Temperature<\/b><\/strong>: -25\u2103~+40\u2103, humidity \u226490% (no condensation).<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Installation Method<\/b><\/strong>: Indoor\/outdoor (with IP54 protection), and wall-mounted installation is supported (for dry-type structures).<\/p><p><strong><b>\u2162. Test Types<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Type Tests<\/b><\/strong>: Including temperature rise test (AN\/AF mode), short-circuit withstand capability test (1.5 times rated current for 5 seconds).<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Factory Tests<\/b><\/strong>: Insulation resistance test (using a 2500V megohmmeter), winding DC resistance measurement (deviation \u2264\u00b12%).<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Special Tests<\/b><\/strong>: 72-hour salt spray test (for coastal areas), partial discharge measurement (\u226450pC).<\/p><p><strong><b>\u2163. Component Inspection<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Key Components<\/b><\/strong>:<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Windings<\/b><\/strong>: Eddy current loss analysis, interlayer insulation strength test.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>Cooling System<\/b><\/strong>: Flow test (for forced oil circulation), fan performance verification.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Raw Material Certification<\/b><\/strong>: Silicon steel sheets must provide UL certification, and epoxy resin must comply with the IEC 60455 standard.<\/p><p><strong><b>\u2164. Certification Types<\/b><\/strong><\/p><p>International Certifications: CE (EU), UL (North America), TUV (Germany), CSA (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"}\\\"]\\t\\t<\\\/div>\\n\\t\\t<div id=\\\"e-n-tab-content-649863462\\\" role=\\\"tabpanel\\\" aria-labelledby=\\\"e-n-tab-title-649863462\\\" data-tab-index=\\\"2\\\" style=\\\"--n-tabs-title-order: 2;\\\" class=\\\" elementor-element elementor-element-2e2154e e-con-full e-flex e-con e-child\\\" data-id=\\\"2e2154e\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-0f27574 elementor-widget elementor-widget-heading\\\" data-id=\\\"0f27574\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Structural Features<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"{"id":"f30b232","elType":"widget","settings":{"editor":"<p><strong><b>\u2160. Product Features<\/b><\/strong><\/p><p><strong><b>1.<\/b><\/strong><strong><b>Reliable Insulation<\/b><\/strong>: A reasonable and reliable insulation level is determined based on load characteristics, grid voltage fluctuations, and other factors.<\/p><p><strong><b>2.<\/b><\/strong><strong><b>Insulation Model<\/b><\/strong>: The product's environmental safety factor is \u22651.67, which can fully ensure the stability of electrical performance.<\/p><p><strong><b>3.<\/b><\/strong><strong><b>High Dynamic Stability<\/b><\/strong>: The windings have high mechanical strength. During the design and manufacturing process, dynamic instability sources caused by leakage flux and other factors are eliminated, enabling the transformer to meet the requirements of harsh load environments.<\/p><p><strong><b>4.<\/b><\/strong><strong><b>Strong Short-circuit Resistance<\/b><\/strong>: Special structural design and manufacturing processes are adopted, such as winding high-strength tight belts around the outer surface of the windings, giving it good short-circuit resistance and the ability to withstand the impact of short-circuit current.<\/p><p><strong><b>5.<\/b><\/strong><strong><b>Good Thermal Stability<\/b><\/strong>: With advanced product design, the heating parts and hot-spot temperature rise are strictly controlled. Copper conductors are used for coils and leads, and the current density is set low. The main temperature rise indicators are at least 5\u2103 lower than the national standard.<\/p><p><strong><b>6.<\/b><\/strong><strong><b>Strong Overload Capacity<\/b><\/strong>: It can operate safely for a long time under rated load, and can also operate safely with full load under 110% overvoltage for a long time. The terminals of the transformer connected to the motor can withstand 1.5 times the rated current for 5 seconds.<\/p><p><strong><b>7.<\/b><\/strong><strong><b>Flexible Voltage Regulation<\/b><\/strong>: Based on principles such as phase-controlled voltage regulation, self-saturating reactors or thyristors can be used to adjust the output voltage of the transformer, realizing stepless voltage regulation to meet the voltage requirements of different loads.<\/p><p><strong><b>8.<\/b><\/strong><strong><b>High Efficiency<\/b><\/strong>: Low-loss design is adopted, such as selecting high-magnetic-conductivity silicon steel sheets and optimizing the winding structure. The full-load efficiency is \u226598.5%, meeting the first-level energy efficiency standard and achieving significant energy-saving effects.<\/p><p><strong><b>9.<\/b><\/strong><strong><b>Compact Structure<\/b><\/strong>: Epoxy resin vacuum casting or open structure design is adopted, reducing the volume by 40% compared with traditional oil-immersed transformers. It supports wall-mounted installation, saving installation space.<\/p><p><strong><b>10.<\/b><\/strong><strong><b>Low Noise<\/b><\/strong>: High-quality materials and advanced manufacturing processes are used, such as special dipping processes and reasonable iron core lamination methods, effectively reducing vibration and noise during operation. The noise is usually&lt;65dB.<\/p><p><strong><b>11.<\/b><\/strong><strong><b>Good Environmental Performance<\/b><\/strong>: Some rectifier transformers adopt a dry-type structure, which has the characteristics of heat resistance and moisture resistance, does not produce toxic gases, and is environmentally friendly. Moreover, the protection level can be selected to adapt to different usage environments.<\/p><p><strong><b>\u2161<\/b><\/strong><strong><b>. Product Advantages<\/b><\/strong><\/p><p>1.Rectifier transformers are key equipment for realizing AC-to-DC conversion in power electronic systems. Their design and performance directly affect the stability, efficiency, and safety of rectifier systems. The following is a detailed analysis of the product advantages of rectifier transformers from multiple dimensions:<\/p><p><strong><b>\u2460<\/b><\/strong><strong><b>Flexible Winding Design<\/b><\/strong><\/p><p>The primary side (AC input) and secondary side (connected to the rectifier) windings of rectifier transformers can be designed with different turns ratios and wiring methods ( star, delta, zigzag) according to the type of rectifier circuit ( single-phase half-wave, full-wave, three-phase bridge), ensuring matching with the electrical parameters of rectifier components (diodes, thyristors, etc.), and reducing circuit losses and interference.<\/p><p><strong><b>\u2461<\/b><\/strong><strong><b>Multi-winding Output Capability<\/b><\/strong><\/p><p>Multiple sets of secondary windings can be designed to meet the needs of multiple sets of rectifier circuits working simultaneously ( scenarios requiring multiple sets of DC power supplies in industrial electrolysis and electroplating equipment), simplifying system wiring and improving space utilization.<\/p><p><strong><b>\u2462<\/b><\/strong><strong><b>Leakage reactance can limit the amplitude of harmonic currents<\/b><\/strong><\/p><p>Multiple rectifier transformers are combined with different phase-shifting angles, which can make harmonics cancel each other out and significantly reduce the total harmonic distortion rate.<\/p><p><strong><b>\u2463<\/b><\/strong><strong><b>Improving Power Factor<\/b><\/strong><\/p><p>A reasonably designed rectifier transformer can be combined with a filter device to improve the inductive load characteristics of the rectifier system, reduce reactive power loss, increase the power factor on the power grid side, and lower electricity costs.<\/p><p><strong><b>\u2464<\/b><\/strong><strong><b>Adaptation to Overcurrent and Overvoltage Protection<\/b><\/strong><\/p><p>Overcurrent protection windings can be integrated into the winding design or combined with relay protection devices. When overload or short-circuit occurs in the rectifier circuit, the power supply can be quickly cut off or the fault current can be limited, reducing the risk of equipment damage.<\/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\\\" style=\\\"--n-tabs-title-order: 3;\\\" class=\\\" elementor-element elementor-element-764f307 e-con-full e-flex e-con e-child\\\" data-id=\\\"764f307\\\" data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-9872304 elementor-widget elementor-widget-heading\\\" data-id=\\\"9872304\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"heading.default\\\">\\n\\t\\t\\t\\t\\t<h2 class=\\\"elementor-heading-title elementor-size-default\\\">Product structure<\\\/h2>\\t\\t\\t\\t<\\\/div>\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" 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.tg-uzvj{border-color:inherit;font-weight:bold;text-align:center;vertical-align:middle}\\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-uzvj\\\" rowspan=\\\"2\\\">Rated Capacity<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" rowspan=\\\"2\\\">H.V.<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" rowspan=\\\"2\\\">L.V.<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" rowspan=\\\"2\\\">Connection Symbol<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" colspan=\\\"2\\\">No-load loss(kw)<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\" colspan=\\\"2\\\">On-load loss(kw)<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">Short circuit impedance<\\\/th>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <th class=\\\"tg-wa1i\\\">S11<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S11<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S13<\\\/th>\\r\\n    <th class=\\\"tg-wa1i\\\">S11<\\\/th>\\r\\n  <\\\/tr><\\\/thead>\\r\\n<tbody>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">50<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">35<br><br><br><br>38.5<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">0.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">Dyn11<br><br><br><br>Yyn0<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.16<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.112<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.20\\\/1.14<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.20\\\/1.14<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\" rowspan=\\\"16\\\">6.5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">100<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.23<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.161<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.01\\\/1.91<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.01\\\/1.91<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">125<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.27<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.189<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.37\\\/2.26<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.37\\\/2.26<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">160<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.28<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.196<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.82\\\/2.68<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.82\\\/2.68<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">200<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.34<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.238<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.32\\\/3.16<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.32\\\/3.16<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.28<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.95\\\/3.76<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">3.95\\\/3.76<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">315<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.48<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.336<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4.75\\\/4.53<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">4.75\\\/4.53<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">400<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.58<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.406<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5.74\\\/5.47<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">5.74\\\/5.47<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.68<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.476<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6.91\\\/6.58<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">6.91\\\/6.58<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">630<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.83<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.581<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7.86<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">7.86<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">800<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.98<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.686<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">9.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">9.4<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.15<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.805<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">11.5<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">11.5<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1250<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.4<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">0.98<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">13.9<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">13.9<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">1600<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.69<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.183<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">16.6<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">16.6<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">2000<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.99<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.393<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">19.7<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">19.7<\\\/td>\\r\\n  <\\\/tr>\\r\\n  <tr>\\r\\n    <td class=\\\"tg-nrix\\\">2500<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">2.36<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">1.652<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">23.2<\\\/td>\\r\\n    <td class=\\\"tg-nrix\\\">23.2<\\\/td>\\r\\n  <\\\/tr>\\r\\n<\\\/tbody><\\\/table>\\r\\n<\\\/thead>\\r\\n<tbody>\\r\\n  <!-- \\u4f60\\u539f\\u6765\\u7684 <tr> 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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 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 a rectifier transformer? What is the difference between it and an ordinary power transformer? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2180\\\" class=\\\"elementor-element elementor-element-05eeb49 e-con-full e-flex e-con e-child\\\" data-id=\\\"05eeb49\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2181\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"2\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2181\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 2.How to calculate and select the capacity of a rectifier transformer? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2181\\\" class=\\\"elementor-element elementor-element-9b6bfdb e-con-full e-flex e-con e-child\\\" data-id=\\\"9b6bfdb\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2182\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"3\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2182\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 3.The rectifier transformer has an excessively high temperature rise during operation, even feeling hot to the touch. What is the reason? <\\\/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=\\\"eyJpZCI6IjVmMWNmNDUiLCJlbFR5cGUiOiJ3aWRnZXQiLCJzZXR0aW5ncyI6eyJlZGl0b3IiOiI8cD48c3Ryb25nPjxiPlx1MjQ2MDxcL2I+PFwvc3Ryb25nPjxzdHJvbmc+PGI+SGFybW9uaWMgY3VycmVudHM8XC9iPjxcL3N0cm9uZz46IEEgbGFyZ2UgbnVtYmVyIG9mIGhhcm1vbmljIGN1cnJlbnRzIGdlbmVyYXRlZCBieSByZWN0aWZpZXIgbG9hZHMgbGVhZCB0byBpbmNyZWFzZWQgYWRkaXRpb25hbCBjb3BwZXIgbG9zcyBhbmQgaXJvbiBsb3NzLCB3aGljaCBpcyB0aGUgbW9zdCBpbXBvcnRhbnQgcmVhc29uLjxcL3A+PHA+PHN0cm9uZz48Yj5cdTI0NjE8XC9iPjxcL3N0cm9uZz48c3Ryb25nPjxiPk92ZXJsb2FkIG9wZXJhdGlvbjxcL2I+PFwvc3Ryb25nPjogVGhlIGFjdHVhbCBsb2FkIGN1cnJlbnQgZXhjZWVkcyB0aGUgcmF0ZWQgdmFsdWUgZm9yIGEgbG9uZyB0aW1lLjxcL3A+PHA+PHN0cm9uZz48Yj5cdTI0NjI8XC9iPjxcL3N0cm9uZz48c3Ryb25nPjxiPkNvb2xpbmcgc3lzdGVtIGZhaWx1cmU8XC9iPjxcL3N0cm9uZz46IEZvciBleGFtcGxlLCB0aGUgZm9yY2VkIGFpciBjb29saW5nIGZhbiBvZiBhbiBvaWwtaW1tZXJzZWQgdHJhbnNmb3JtZXIgc3RvcHMgcnVubmluZywgdGhlIHJhZGlhdG9yIGlzIGRpcnR5IGFuZCBibG9ja2VkLCBvciB0aGUgcGlwZWxpbmUgaXMgYmxvY2tlZDsgdGhlIGFpciBkdWN0IG9mIGEgZHJ5LXR5cGUgdHJhbnNmb3JtZXIgaXMgYmxvY2tlZCBvciB0aGUgYW1iaWVudCB2ZW50aWxhdGlvbiBpcyBwb29yLjxcL3A+PHA+PHN0cm9uZz48Yj5cdTI0NjM8XC9iPjxcL3N0cm9uZz48c3Ryb25nPjxiPkludGVybmFsIGZhdWx0czxcL2I+PFwvc3Ryb25nPjogU3VjaCBhcyBpbnRlci10dXJuIHNob3J0IGNpcmN1aXRzIGluIHdpbmRpbmdzLCBtdWx0aS1wb2ludCBncm91bmRpbmcgb2YgdGhlIGlyb24gY29yZSBsZWFkaW5nIHRvIGxvY2FsIG92ZXJoZWF0aW5nLjxcL3A+PHA+PHN0cm9uZz48Yj5cdTI0NjQ8XC9iPjxcL3N0cm9uZz48c3Ryb25nPjxiPlBvb3IgY29udGFjdDxcL2I+PFwvc3Ryb25nPjogVGhlIGNvbnRhY3QgcmVzaXN0YW5jZSBhdCB0aGUgY29ubmVjdGlvbiBwb2ludHMgb2YgdGhlIHdpbmRpbmcgbGVhZHMgb3IgYnVzaGluZ3MgaXMgdG9vIGxhcmdlLCBjYXVzaW5nIGhlYXQgZ2VuZXJhdGlvbi48XC9wPiIsIl9wYWRkaW5nIjp7InVuaXQiOiJweCIsInRvcCI6IjIwIiwicmlnaHQiOiIwIiwiYm90dG9tIjoiMCIsImxlZnQiOiIwIiwiaXNMaW5rZWQiOmZhbHNlfSwiX19nbG9iYWxzX18iOnsidHlwb2dyYXBoeV90eXBvZ3JhcGh5IjoiZ2xvYmFsc1wvdHlwb2dyYXBoeT9pZD1kMDZmNTA3In0sInBhcmFncmFwaF9zcGFjaW5nIjp7InVuaXQiOiJweCIsInNpemUiOjE2LCJzaXplcyI6W119fSwiZWxlbWVudHMiOltdLCJ3aWRnZXRUeXBlIjoidGV4dC1lZGl0b3IifQ==\\\"]\\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.The rectifier transformer makes a lot of noise during operation. Is this normal? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2183\\\" class=\\\"elementor-element elementor-element-8566f20 e-con-full e-flex e-con e-child\\\" data-id=\\\"8566f20\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2184\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"5\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2184\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 5.What should I do if the output voltage of the rectifier transformer is unstable? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2184\\\" class=\\\"elementor-element elementor-element-3b6302b e-con-full e-flex e-con e-child\\\" data-id=\\\"3b6302b\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2185\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"6\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2185\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 6.What is a \\\"phase-shifted rectifier transformer\\\"? Why is it needed? <\\\/div><\\\/span>\\n\\t\\t\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-icon'>\\n\\t\\t\\t<span class='e-opened' ><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-down\\\" viewBox=\\\"0 0 320 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t\\t<span class='e-closed'><svg aria-hidden=\\\"true\\\" class=\\\"e-font-icon-svg e-fas-angle-right\\\" viewBox=\\\"0 0 256 512\\\" xmlns=\\\"http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\\"><path d=\\\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\\\"><\\\/path><\\\/svg><\\\/span>\\n\\t\\t<\\\/span>\\n\\n\\t\\t\\t\\t\\t\\t<\\\/summary>\\n\\t\\t\\t\\t<div role=\\\"region\\\" aria-labelledby=\\\"e-n-accordion-item-2185\\\" class=\\\"elementor-element elementor-element-d41fa9f e-con-full e-flex e-con e-child\\\" data-id=\\\"d41fa9f\\\" data-element_type=\\\"container\\\" data-settings=\\\"{&quot;background_background&quot;:&quot;classic&quot;}\\\">\\n\\t\\t[elementor-element k=\\\"43aca594a86d0bbe94de5159700c1e94\\\" data=\\\"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\\\"]\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/details>\\n\\t\\t\\t\\t\\t\\t<details id=\\\"e-n-accordion-item-2186\\\" class=\\\"e-n-accordion-item\\\" >\\n\\t\\t\\t\\t<summary class=\\\"e-n-accordion-item-title\\\" data-accordion-index=\\\"7\\\" tabindex=\\\"-1\\\" aria-expanded=\\\"false\\\" aria-controls=\\\"e-n-accordion-item-2186\\\" >\\n\\t\\t\\t\\t\\t<span class='e-n-accordion-item-title-header'><div class=\\\"e-n-accordion-item-title-text\\\"> 7.The oil-immersed rectifier transformer is leaking oil. 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