{"id":10072,"date":"2026-08-22T09:02:57","date_gmt":"2026-08-22T01:02:57","guid":{"rendered":"https:\/\/www.subian-electric.com\/?page_id=10072"},"modified":"2026-08-30T19:22:32","modified_gmt":"2026-08-30T11:22:32","slug":"distribution-transformer-oil-type-manufacturers","status":"publish","type":"page","link":"https:\/\/subian-electric.com\/fr\/distribution-transformer-oil-type-manufacturers\/","title":{"rendered":"Fabricants de transformateurs de distribution type huile"},"content":{"rendered":"<section class=\"web-sem-module web-sem-module-one\" style=\"min-width: 100%;\">\n<div class=\"web-sem-container\">\n<div class=\"web-sem-flex-box\">\n<div class=\"web-sem-text\"><span class=\"web-sem-tag\">COMPANY PROFILE<\/span><\/p>\n<h1>Distribution Transformer Oil Type Manufacturers &#8211; Oil-Immersed Factory Supply<\/h1>\n<p>Subian Electric manufactures oil immersed distribution transformers from 6 kV to 132 kV class at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied power grids, utilities and industry in 50+ countries since 2019.<br \/>\nAs a factory-direct manufacturer and supplier, we provide oil-type distribution transformers with factory pricing, custom configurations and complete test documentation.<br \/>\nSend your voltage, capacity and standard. Our export team will respond with a quotation and technical proposal.<\/p>\n<div style=\"margin-top: 24px;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,0.08);\" src=\"\/wp-content\/uploads\/2026\/08\/subian-product-certification-marks.png\" alt=\"Subian Electric ISO9001 CE and UL product certification marks\" \/><\/div>\n<div class=\"hy-lb-btn-wrap\" style=\"margin-top: 20px;\"><a class=\"hy-lb-btn\" href=\"\/contact-us\/\">Get a Quote<\/a><\/div>\n<\/div>\n<div class=\"web-sem-media\">\n<div class=\"web-sem-main-img web-sem-rect-75\"><img decoding=\"async\" class=\"web-sem-full\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-assembly-process.webp\" alt=\"Oil immersed distribution transformer assembly at Subian\" \/><\/div>\n<div class=\"web-sem-float-card\"><strong>Factory-Direct Manufacturer<\/strong><br \/>\nSince 2019 \u00b7 50,000m\u00b2 \u00b7 350+ Staff<\/div>\n<\/div>\n<\/div>\n<div class=\"web-sem-stats-grid\">\n<div class=\"web-sem-stat-item\"><strong>50,000m\u00b2<\/strong>Manufacturing Base<\/div>\n<div class=\"web-sem-stat-item\"><strong>6-132kV<\/strong>Voltage Range<\/div>\n<div class=\"web-sem-stat-item\"><strong>350+<\/strong>Employees<\/div>\n<div class=\"web-sem-stat-item\"><strong>50+<\/strong>Countries Served<\/div>\n<div class=\"web-sem-stat-item\"><strong>OEM\/ODM<\/strong>Support<\/div>\n<div class=\"web-sem-stat-item\"><strong>Wholesale<\/strong>Supply<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"singlepage-products-section\" style=\"min-width: 100%;\">\n<div class=\"singlepage-container\">\n<h2 class=\"singlepage-section-title\">Oil Immersed Distribution Transformers We Manufacture<\/h2>\n<p class=\"singlepage-section-desc\">Oil-type distribution transformers from 6 kV to 132 kV class, 30 kVA to 63000 kVA &#8211; pole-mounted, pad-mounted and substation designs with ONAN\/ONAF cooling.<\/p>\n<div class=\"woocommerce columns-4 \"><ul class=\"products columns-4\" data-products=\"type-3\" data-hover=\"zoom-in\">\n<li class=\"product type-product post-2007 status-publish first instock product_cat-dry-type-transformer product_cat-all-product product_cat-transformer-2 product_tag-amorphous-alloy-transformer product_tag-dry-type-transformer product_tag-scbh-series has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/10kv-dry-type-transformer-scbh-series\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/f3d771df622f51ee2386b290a0e687e.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"10kV  Dry-Type Transformer-SCBH series Amorphous Alloy\" \/><h2 class=\"woocommerce-loop-product__title\">10kV  Dry-Type Transformer-SCBH series Amorphous Alloy<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/10kv-dry-type-transformer-scbh-series\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2007\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"2007\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;10kV  Dry-Type Transformer-SCBH series Amorphous Alloy&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2007\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1966 status-publish instock product_cat-dry-type-transformer product_cat-all-product product_cat-transformer-2 product_tag-20-35kv-transformer product_tag-cast-resin-transformer product_tag-dry-type-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/20-35kv-dry-type-transformer\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/1-1.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"20-35KV  Dry-Type Transformer\" \/><h2 class=\"woocommerce-loop-product__title\">20-35KV  Dry-Type Transformer<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/20-35kv-dry-type-transformer\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1966\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1966\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;20-35KV  Dry-Type Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1966\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1999 status-publish instock product_cat-dry-type-transformer product_cat-all-product product_cat-transformer-2 product_tag-cast-resin-transformer product_tag-dry-type-transformer product_tag-scb-series has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/20-35kv-scb-series-epoxy-resin-dry-type-transformer\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/1-1.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"20-35KV SCB Series Epoxy Resin Dry-Type Transformer\" \/><h2 class=\"woocommerce-loop-product__title\">20-35KV SCB Series Epoxy Resin Dry-Type Transformer<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/20-35kv-scb-series-epoxy-resin-dry-type-transformer\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1999\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1999\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;20-35KV SCB Series Epoxy Resin Dry-Type Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1999\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-2005 status-publish last instock product_cat-oil-immersed-transformer product_cat-all-product product_cat-transformer-2 product_tag-20kv-transformer product_tag-distribution-transformer product_tag-oil-immersed-distribution-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/20kv-oil-immersed-distribution-transformer\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/20kv-high-voltage-oil-immersed-distribution-transformer-3.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"20KV Oil-immersed Distribution Transformer\" \/><h2 class=\"woocommerce-loop-product__title\">20KV Oil-immersed Distribution Transformer<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/20kv-oil-immersed-distribution-transformer\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2005\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"2005\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;20KV Oil-immersed Distribution Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2005\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-2001 status-publish first instock product_cat-oil-immersed-transformer product_cat-all-product product_cat-transformer-2 product_tag-35kv-transformer product_tag-oil-immersed-power-transformer product_tag-power-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/35kv-oil-immersed-power-transformer\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/35kvoil-immersed-power-transformer-1.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"35KV Oil-immersed Power Transformer\" \/><h2 class=\"woocommerce-loop-product__title\">35KV Oil-immersed Power Transformer<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/35kv-oil-immersed-power-transformer\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2001\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"2001\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;35KV Oil-immersed Power Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2001\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1998 status-publish instock product_cat-oil-immersed-transformer product_cat-all-product product_cat-transformer-2 product_tag-6-10kv-transformer product_tag-distribution-transformer product_tag-oil-immersed-distribution-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/6-10kv-oil-immersed-power-distribution-transformer\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/kp0a4190.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"6-10KV Oil-Immersed Power Distribution Transformer\" \/><h2 class=\"woocommerce-loop-product__title\">6-10KV Oil-Immersed Power Distribution Transformer<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/6-10kv-oil-immersed-power-distribution-transformer\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1998\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1998\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;6-10KV Oil-Immersed Power Distribution Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1998\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1932 status-publish instock product_cat-main-transformer product_cat-all-product product_tag-current-transformer product_tag-epoxy-resin-ct product_tag-indoor-current-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-10kv-indoor-high-voltage\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/h4f0a38a16f8d431cabf296113e8a958291-300x300-1.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Current Transformer --10KV Indoor High Voltage\" \/><h2 class=\"woocommerce-loop-product__title\">Current Transformer &#8211;10KV Indoor High Voltage<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-10kv-indoor-high-voltage\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1932\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1932\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;Current Transformer --10KV Indoor High Voltage&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1932\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1926 status-publish last instock product_cat-main-transformer product_cat-all-product product_tag-current-transformer product_tag-instrument-transformer product_tag-wound-current-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-lmzk-wound-current-transformer300-5a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/h94b3287a0c02400cb3896e070dd056b3o-300x300.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Current Transformer--LMZK Wound Current Transformer300\/5a\" \/><h2 class=\"woocommerce-loop-product__title\">Current Transformer&#8211;LMZK Wound Current Transformer300\/5a<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-lmzk-wound-current-transformer300-5a\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1926\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1926\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;Current Transformer--LMZK Wound Current Transformer300\/5a&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1926\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1928 status-publish first instock product_cat-main-transformer product_cat-oil-immersed-transformer product_cat-all-product product_cat-transformer-2 product_tag-bar-type-ct product_tag-current-transformer product_tag-three-phase-current-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-lsy-10-transformer-integrated-ct\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/h2f56a44db3a6408d8a0975c84031b3bck11-300x300-1.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Current Transformer--LSY-10 transformer Integrated CT\" \/><h2 class=\"woocommerce-loop-product__title\">Current Transformer&#8211;LSY-10 transformer Integrated CT<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-lsy-10-transformer-integrated-ct\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1928\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1928\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;Current Transformer--LSY-10 transformer Integrated CT&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1928\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1930 status-publish instock product_cat-main-transformer product_cat-all-product product_tag-current-transformer product_tag-ground-fault-protection product_tag-zero-sequence-current-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-lxk-high-voltage-zero-sequence\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/h5dcc01e22724407bbb4d1219883fc468a1-300x300-1.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"current transformer--LXK high voltage zero sequence\" \/><h2 class=\"woocommerce-loop-product__title\">current transformer&#8211;LXK high voltage zero sequence<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/current-transformer-lxk-high-voltage-zero-sequence\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1930\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1930\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;current transformer--LXK high voltage zero sequence&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1930\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-2003 status-publish instock product_cat-dry-type-transformer product_cat-all-product product_cat-transformer-2 product_tag-cast-resin-transformer product_tag-dry-type-transformer product_tag-scb-series has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/dry-type-distribution-transformer-6-10-kv-scb-series\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/bd0761d993d375c8d6d35729641fc73.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"dry type distribution transformer-6-10 KV SCB series epoxy resin cast\" \/><h2 class=\"woocommerce-loop-product__title\">dry type distribution transformer-6-10 KV SCB series epoxy resin cast<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/dry-type-distribution-transformer-6-10-kv-scb-series\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2003\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"2003\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;dry type distribution transformer-6-10 KV SCB series epoxy resin cast&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2003\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1934 status-publish last instock product_cat-main-transformer product_cat-all-product product_tag-instrument-transformer product_tag-potential-transformer product_tag-voltage-transformer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/fr\/product\/electrical-transformers-jdz-10-power-voltage\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/h62d1d2268850460b947a0f5239537f12m.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Electrical Transformers--JDZ - 10  Power Voltage\" \/><h2 class=\"woocommerce-loop-product__title\">Electrical Transformers&#8211;JDZ &#8211; 10  Power Voltage<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/fr\/product\/electrical-transformers-jdz-10-power-voltage\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1934\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1934\" data-product_sku=\"\" aria-label=\"En savoir plus sur &ldquo;Electrical Transformers--JDZ - 10  Power Voltage&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1934\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\">\n<div class=\"subian-semv2-acbr-split\">\n<div class=\"subian-semv2-acbr-text\">\n<h2 id=\"subian-semv2-acbr-title\">What Is an Oil Type Distribution Transformer?<\/h2>\n<p class=\"subian-semv2-acbr-intro\">An oil type distribution transformer uses mineral oil for insulation and cooling, making it the most economical and widely used transformer technology for outdoor distribution. The oil dissipates heat and provides dielectric strength, allowing high capacity in a compact tank.<\/p>\n<p>Utilities and industrial sites around the world rely on oil-immersed distribution transformers for pole, pad and substation installations. They deliver proven reliability, low first cost and easy maintainability over decades of service.<\/p>\n<\/div>\n<ul class=\"subian-semv2-acbr-points\">\n<li><strong>6-132 kV class<\/strong> &#8211; oil-immersed units for pole, pad and substation duty.<\/li>\n<li><strong>Proven technology<\/strong> &#8211; the world standard for outdoor distribution.<\/li>\n<li><strong>50,000m\u00b2 factory<\/strong> &#8211; in-house winding, vacuum drying and testing.<\/li>\n<li><strong>350+ employees<\/strong> &#8211; engineering, production and export teams.<\/li>\n<li><strong>Type test evidence<\/strong> &#8211; power frequency and impulse reports to 110 kV class.<\/li>\n<li><strong>OEM \/ ODM &amp; wholesale<\/strong> &#8211; custom branding, packaging and volume supply.<\/li>\n<\/ul>\n<\/div>\n<h3 class=\"subian-semv2-acbr-subtitle\">Main Types of Oil Immersed Distribution Transformers<\/h3>\n<p class=\"subian-semv2-acbr-subtitle-desc\">We manufacture three oil-type configurations:<\/p>\n<div class=\"subian-t2-types\">\n<div class=\"subian-t2-type\">\n<h4>Pole-mounted<\/h4>\n<p>Compact single-phase and three-phase units for rural and overhead networks.<\/p>\n<\/div>\n<div class=\"subian-t2-type\">\n<h4>Pad-mounted<\/h4>\n<p>Enclosed ground-level units for urban and commercial distribution.<\/p>\n<\/div>\n<div class=\"subian-t2-type\">\n<h4>Substation type<\/h4>\n<p>Larger units for distribution substations up to 132 kV class.<\/p>\n<\/div>\n<\/div>\n<h3 class=\"subian-semv2-acbr-subtitle\">Oil Immersed Distribution Transformer Specifications<\/h3>\n<div class=\"subian-semv2-acbr-table-wrap\">\n<table class=\"subian-semv2-acbr-specs\">\n<thead>\n<tr>\n<th scope=\"col\">Parameter<\/th>\n<th scope=\"col\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Rated voltage<\/th>\n<td>6 kV &#8211; 132 kV class<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Rated capacity<\/th>\n<td>30 kVA &#8211; 63000 kVA<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Frequency<\/th>\n<td>50\/60 Hz<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Cooling<\/th>\n<td>ONAN \/ ONAF<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Vector group<\/th>\n<td>Yyn0 \/ Dyn11<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Standard<\/th>\n<td>IEC 60076 \/ GB 1094<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-factory\" aria-labelledby=\"subian-semv2-factory-title\">\n<div class=\"subian-semv2-factory-head\">\n<h2 id=\"subian-semv2-factory-title\" class=\"subian-semv2-factory-title\">Oil Immersed Transformer Manufacturing: Full Factory Control<\/h2>\n<p class=\"subian-semv2-factory-intro\">From material preparation to winding, vacuum drying, oil filling, assembly and testing &#8211; every unit is built and tested at our Xuzhou facility.<\/p>\n<\/div>\n<div class=\"subian-semv2-factory-gallery\">\n<div class=\"subian-semv2-factory-item subian-semv2-factory-item--a\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-assembly-process.webp\" alt=\"Subian production workshop\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Production Workshop<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.<\/p>\n<p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a><\/p>\n<\/div>\n<div class=\"subian-semv2-factory-item subian-semv2-factory-item--b\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformers-production-workshop.webp\" alt=\"Subian quality and testing center\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Quality &amp; Testing Center<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.<\/p>\n<p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a><\/p>\n<\/div>\n<div class=\"subian-semv2-factory-item subian-semv2-factory-item--c\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-quality-center.webp\" alt=\"Subian materials and component preparation\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Materials &amp; Components<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Core materials, windings and components are checked against the approved bill of materials on every production run.<\/p>\n<p><a class=\"subian-semv2-factory-link\" href=\"\/supply-chains-service\/\">Learn More \u2192<\/a><\/p>\n<\/div>\n<div class=\"subian-semv2-factory-item subian-semv2-factory-item--d\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-product-certification-marks.png\" alt=\"Subian OEM ODM and agency supply services\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">OEM \/ ODM \/ Agency Supply<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Custom branding, packaging and configurations for global partners &#8211; from nameplate to complete product design &#8211; supported by a dedicated export team.<\/p>\n<p><a class=\"subian-semv2-factory-link\" href=\"\/oem-odm\/\">Learn More \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-cta\" aria-labelledby=\"subian-semv2-cta-title\">\n<div class=\"subian-semv2-cta-content\">\n<h2 id=\"subian-semv2-cta-title\">Oil Type Distribution Transformer Factory Price &#8211; Request a Quote<\/h2>\n<p>Send your specification, voltage level, capacity and quantity. Our export team will respond with factory pricing, lead time and drawings for approval.<\/p>\n<div class=\"subian-semv2-cta-actions\"><a class=\"subian-semv2-cta-btn subian-semv2-cta-btn--light\" href=\"\/oem-odm\/\">Get Started \u2192<\/a><br \/>\n<a class=\"subian-semv2-cta-btn subian-semv2-cta-btn--red\" href=\"\/contact-us\/\">Contact Us \u2192<\/a><\/div>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-section\" aria-labelledby=\"subian-semv2-title\">\n<div class=\"subian-semv2-head\">\n<h2 id=\"subian-semv2-title\" class=\"subian-semv2-head-title\">OEM\/ODM &amp; Wholesale Oil Immersed Transformer Supply<\/h2>\n<p class=\"subian-semv2-head-intro\">Distributors and utilities can brand or resell oil-type units with custom nameplates, packaging and documentation.<\/p>\n<\/div>\n<div class=\"subian-semv2-grid\">\n<article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-assembly-process.webp\" alt=\"OEM ODM manufacturing service\" \/><\/p>\n<div class=\"subian-semv2-card-body\">\n<div class=\"subian-semv2-card-top\">\n<h3 class=\"subian-semv2-card-title\">OEM \/ ODM<\/h3>\n<p><span class=\"subian-semv2-card-tag\">Factory-Direct<\/span><\/p>\n<\/div>\n<p class=\"subian-semv2-card-desc\">Custom branding, packaging and product variants built on our standard platforms &#8211; from a nameplate to full product design.<\/p>\n<hr class=\"subian-semv2-card-line\" \/>\n<p class=\"subian-semv2-card-features\">Custom nameplate \u00b7 Custom packaging \u00b7 Full test docs<\/p>\n<\/div>\n<\/article>\n<article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-assembly-process.webp\" alt=\"Wholesale supply with factory pricing\" \/><\/p>\n<div class=\"subian-semv2-card-body\">\n<div class=\"subian-semv2-card-top\">\n<h3 class=\"subian-semv2-card-title\">Wholesale Supply<\/h3>\n<p><span class=\"subian-semv2-card-tag\">Volume Pricing<\/span><\/p>\n<\/div>\n<p class=\"subian-semv2-card-desc\">Factory pricing with flexible container quantities, mixed models per container and reliable global shipping for volume buyers and importers.<\/p>\n<hr class=\"subian-semv2-card-line\" \/>\n<p class=\"subian-semv2-card-features\">Container MOQ \u00b7 Mixed models \u00b7 Global shipping<\/p>\n<\/div>\n<\/article>\n<article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformers-production-workshop.webp\" alt=\"Distributor support with account management\" \/><\/p>\n<div class=\"subian-semv2-card-body\">\n<div class=\"subian-semv2-card-top\">\n<h3 class=\"subian-semv2-card-title\">Distributor Support<\/h3>\n<p><span class=\"subian-semv2-card-tag\">Channel Partners<\/span><\/p>\n<\/div>\n<p class=\"subian-semv2-card-desc\">Dedicated account management, technical documentation and priority production for distributors and project clients.<\/p>\n<hr class=\"subian-semv2-card-line\" \/>\n<p class=\"subian-semv2-card-features\">Account manager \u00b7 Sales material \u00b7 Priority lead times<\/p>\n<\/div>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-compare\" aria-labelledby=\"subian-semv2-compare-title\">\n<div class=\"subian-semv2-compare-row\">\n<div class=\"subian-semv2-compare-text\">\n<h2 id=\"subian-semv2-compare-title\">Oil Immersed vs Dry Type Distribution Transformers<\/h2>\n<p>Oil-immersed units offer the lowest cost per kVA and suit outdoor, high-capacity duty, but need oil containment and periodic oil maintenance. Dry-type units remove those needs at higher first cost.<\/p>\n<p>For utility and outdoor distribution, oil type remains the standard &#8211; our engineers confirm the right technology for your project.<\/p>\n<\/div>\n<div class=\"subian-semv2-compare-media\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-quality-center.webp\" alt=\"Comparison and selection guide\" \/><\/div>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-brands\" aria-labelledby=\"subian-semv2-brands-title\">\n<div class=\"subian-semv2-brands-row\">\n<div class=\"subian-semv2-brands-media\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-assembly-process.webp\" alt=\"Manufacturers and suppliers in China\" \/><\/div>\n<div class=\"subian-semv2-brands-text\">\n<h2 id=\"subian-semv2-brands-title\">Oil Type Distribution Transformer Manufacturers &amp; Suppliers: How to Choose<\/h2>\n<p>Compare manufacturers on type test evidence, vacuum drying capability and reference deliveries to utilities. These factors determine transformer life and reliability.<\/p>\n<p>Subian Electric offers a 50,000m\u00b2 factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.<\/p>\n<p>Request a quotation with your voltage, capacity and standard &#8211; we confirm the design on drawings before production.<\/p>\n<div class=\"hy-lb-btn-wrap\"><a class=\"hy-lb-btn\" href=\"\/contact-us\/\">Get a Quote \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-cred\" aria-labelledby=\"subian-semv2-cred-title\">\n<div class=\"subian-semv2-cred-head\">\n<h2 id=\"subian-semv2-cred-title\" class=\"subian-semv2-cred-title\">Certifications &amp; Quality Assurance<\/h2>\n<p class=\"subian-semv2-cred-intro\">Our oil-immersed transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports to 110 kV class.<\/p>\n<\/div>\n<h3 class=\"subian-semv2-cred-subtitle\">Product Certifications<\/h3>\n<div class=\"swiper subian-ab-cert-swiper swiper-initialized swiper-horizontal swiper-pointer-events\">\n<div class=\"swiper-wrapper\" style=\"cursor: grab; transition-duration: 0ms;\" aria-live=\"polite\">\n<div class=\"swiper-slide swiper-slide-active\" role=\"group\" aria-label=\"1 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-10kv-dry-type-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"10 kV Dry-Type Transformer Certificate\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-10kv-dry-type-certificate.webp\" alt=\"Subian Electric 10kv Dry Type certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">10 kV Dry-Type Transformer Certificate<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide swiper-slide-next\" role=\"group\" aria-label=\"2 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-cb-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"35 kV Transformer CB Certificate\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-cb-certificate.webp\" alt=\"Subian Electric 35kv Cb certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">35 kV Transformer CB Certificate<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"3 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-ce-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"35 kV Transformer CE Verification\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-ce-certificate.webp\" alt=\"Subian Electric 35kv CE certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">35 kV Transformer CE Verification<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"4 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-ce-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"Transformer CE Certificate\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-ce-certificate.webp\" alt=\"Subian Electric CE certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">Transformer CE Certificate<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"5 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-cn26i11c-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"Dry-Type Transformer Test Verification\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-cn26i11c-certificate.webp\" alt=\"Subian Electric Cn26i11c certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">Dry-Type Transformer Test Verification<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"6 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-iso-14001-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 14001 Environmental Management\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-iso-14001-certificate.webp\" alt=\"Subian Electric ISO 14001 certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">ISO 14001 Environmental Management<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"7 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-iso-45001-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 45001 Health &amp; Safety\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-iso-45001-certificate.webp\" alt=\"Subian Electric ISO 45001 certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">ISO 45001 Health &amp; Safety<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"8 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-iso-9001-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 9001 Quality Management\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-iso-9001-certificate.webp\" alt=\"Subian Electric ISO 9001 certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">ISO 9001 Quality Management<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"9 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-ssz22-63000-110-nx1-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"110 kV Transformer Type Test Report\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-ssz22-63000-110-nx1-certificate.webp\" alt=\"Subian Electric Ssz22 63000 110 Nx1 certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">110 kV Transformer Type Test Report<\/strong><br \/>\n<\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"10 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"\/wp-content\/uploads\/2026\/08\/subian-electric-ul-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"UL Certificate of Compliance\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-ul-certificate.webp\" alt=\"Subian Electric UL certificate\" width=\"600\" height=\"848\" \/><br \/>\n<strong class=\"f18 lh-13\">UL Certificate of Compliance<\/strong><br \/>\n<\/a><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<\/div>\n<\/section>\n<section class=\"subian-related\" style=\"margin: 40px 0;\">\n<div style=\"max-width: 1200px; margin: 0 auto; padding: 0 24px;\">\n<h2 style=\"font-size: 24px; margin-bottom: 12px;\">Related Manufacturer Guides<\/h2>\n<ul style=\"columns: 2; column-gap: 48px; margin: 0; padding-left: 20px; line-height: 2;\">\n<li><a href=\"\/electric-distribution-transformer-manufacturers\/\">Electric Distribution Transformer Manufacturers<\/a><\/li>\n<li><a href=\"\/high-voltage-electrical-equipment-manufacturers\/\">High Voltage Electrical Equipment Manufacturers<\/a><\/li>\n<li><a href=\"\/voltage-transformer-in-substation-manufacturers\/\">Voltage Transformer In Substation Manufacturers<\/a><\/li>\n<li><a href=\"\/about-us\/\">About Our Factory<\/a><\/li>\n<li><a href=\"\/oem-odm\/\">OEM \/ ODM Programs<\/a><\/li>\n<li><a href=\"\/contact-us\/\">Contact Our Export Team<\/a><\/li>\n<\/ul>\n<\/div>\n<\/section>\n<section class=\"subian-faq-contact\">\n<div class=\"subian-faq-contact__container\">\n<div class=\"subian-faq-contact__grid\">\n<div class=\"subian-faq-contact__left\"><span class=\"subian-faq-contact__eyebrow\">FAQs<\/span><\/p>\n<h2 class=\"subian-faq-contact__title\">Oil Type Distribution Transformer FAQ<\/h2>\n<p class=\"subian-faq-contact__intro\">Common questions about oil immersed distribution transformers and factory sourcing.<\/p>\n<div class=\"subian-faq\">\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">Why are distribution transformers filled with oil?<\/summary>\n<div class=\"subian-faq__answer\">Transformer oil provides both insulation and cooling, allowing higher capacity in a compact tank at lower cost than dry-type designs.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What is the difference between ONAN and ONAF cooling?<\/summary>\n<div class=\"subian-faq__answer\">ONAN is natural oil and air cooling for standard duty; ONAF adds fans to boost capacity when needed.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What oil is used?<\/summary>\n<div class=\"subian-faq__answer\">Mineral oil is standard; alternative ester oils can be specified for environmentally sensitive sites.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What maintenance does an oil transformer need?<\/summary>\n<div class=\"subian-faq__answer\">Periodic oil level and quality checks, plus routine inspection of terminals and cooling. Oil sampling frequency follows the operating conditions.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">Do you provide type test reports?<\/summary>\n<div class=\"subian-faq__answer\">Yes &#8211; type test reports to 110 kV class are available for project approval.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What is the minimum order quantity?<\/summary>\n<div class=\"subian-faq__answer\">Single units are available; container volumes receive the best factory pricing.<\/div>\n<\/details>\n<\/div>\n<\/div>\n<div class=\"subian-faq-contact__form\">\n<p class=\"subian-faq-contact__form-label\">Contact Subian<\/p>\n<h3 class=\"subian-faq-contact__form-title\">Need the Right Specification?<\/h3>\n<p class=\"subian-faq-contact__form-copy\">Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.<\/p>\n<div class='fluentform ff-default fluentform_wrapper_1 ffs_default_wrap'><form data-form_id=\"1\" id=\"fluentform_1\" class=\"frm-fluent-form fluent_form_1 ff-el-form-top ff_form_instance_1_1 ff-form-loading ffs_default\" data-form_instance=\"ff_form_instance_1_1\" method=\"POST\" ><fieldset  style=\"border: none!important;margin: 0!important;padding: 0!important;background-color: transparent!important;box-shadow: none!important;outline: none!important; min-inline-size: 100%;\">\n                    <legend class=\"ff_screen_reader_title\" style=\"display: block; margin: 0!important;padding: 0!important;height: 0!important;text-indent: -999999px;width: 0!important;overflow:hidden;\">Contact Form Demo<\/legend>        <div\n                style=\"display: none!important; position: absolute!important; transform: translateX(1000%)!important;\"\n                class=\"ff-el-group ff-hpsf-container\"\n        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required\",\"global\":false,\"global_message\":\"This field is required\"},\"email\":{\"value\":true,\"message\":\"This field must contain a valid email\",\"global\":false,\"global_message\":\"This field must contain a valid email\"}},\"subject\":{\"required\":{\"value\":false,\"message\":\"This field is required\",\"global\":false,\"global_message\":\"This field is required\"}},\"message\":{\"required\":{\"value\":true,\"message\":\"This field is required\",\"global\":false,\"global_message\":\"This field is required\"}}},\"debounce_time\":300,\"file_upload_settings\":[]};\n                            <\/script>\n            \n<div class=\"subian-faq-contact__trust\">\nYour inquiry is sent directly to our export sales team.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Why are distribution transformers filled with oil?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Transformer oil provides both insulation and cooling, allowing higher capacity in a compact tank at lower cost than dry-type designs.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between ONAN and ONAF cooling?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"ONAN is natural oil and air cooling for standard duty; ONAF adds fans to boost capacity when needed.\"}}, {\"@type\": \"Question\", \"name\": \"What oil is used?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Mineral oil is standard; alternative ester oils can be specified for environmentally sensitive sites.\"}}, {\"@type\": \"Question\", \"name\": \"What maintenance does an oil transformer need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Periodic oil level and quality checks, plus routine inspection of terminals and cooling. Oil sampling frequency follows the operating conditions.\"}}, {\"@type\": \"Question\", \"name\": \"Do you provide type test reports?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes - type test reports to 110 kV class are available for project approval.\"}}, {\"@type\": \"Question\", \"name\": \"What is the minimum order quantity?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Single units are available; container volumes receive the best factory pricing.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>COMPANY PROFILE Distribution Transformer Oil Type Manufacturers &#8211; Oil-Immersed Factory Supply Subian Electric manufactures oil immersed distribution transformers from 6 kV to 132 kV class at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied power grids, utilities and industry in 50+ countries since 2019. As a factory-direct manufacturer and supplier, we [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"subian-seo-landing.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10072","page","type-page","status-publish","hentry"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/pages\/10072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/comments?post=10072"}],"version-history":[{"count":2,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/pages\/10072\/revisions"}],"predecessor-version":[{"id":11210,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/pages\/10072\/revisions\/11210"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/media?parent=10072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}