{"id":11432,"date":"2026-09-03T15:08:28","date_gmt":"2026-09-03T07:08:28","guid":{"rendered":"https:\/\/subian-electric.com\/?page_id=11432"},"modified":"2026-09-03T15:08:28","modified_gmt":"2026-09-03T07:08:28","slug":"11-kv-transformer","status":"publish","type":"page","link":"https:\/\/subian-electric.com\/es\/11-kv-transformer\/","title":{"rendered":"Transformador de 11 kV"},"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>11 kV Transformer Factory &amp; Manufacturer<\/h1>\n<p>Subian Electric manufactures distribution transformers for 11kV networks &#8211; the standard medium-voltage level in the UK, Ireland, Malaysia and many other markets. Our range covers oil-immersed and dry-type units from small pole-mounted ratings upward, engineered for 11kV\/400V and 11kV\/433V duty.<br \/>\nBuilt at our 50,000-square-metre factory in Xuzhou with 350+ employees, each unit is routine-tested and delivered with drawings and a test report, backed by export experience to more than 50 countries since 2019.<br \/>\nSend your rating, secondary voltage (400V or 433V) and installation type, and our engineers will confirm the design and factory quotation.<\/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=\"11 kV distribution transformer production 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>Up to 110kV<\/strong>Type-Tested Capability<\/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\">11 kV Distribution Transformers We Build<\/h2>\n<p class=\"singlepage-section-desc\">Oil-immersed and dry-type transformers for 11kV systems &#8211; pole-mounted, ground-level and substation units from 25 kVA upward with 400V or 433V secondaries.<\/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 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;10kV  Dry-Type Transformer-SCBH series Amorphous Alloy&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;20-35KV  Dry-Type Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;20-35KV SCB Series Epoxy Resin Dry-Type Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;20KV Oil-immersed Distribution Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;35KV Oil-immersed Power Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;6-10KV Oil-Immersed Power Distribution Transformer&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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-new-energy-box-change 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;Current Transformer --10KV Indoor High Voltage&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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-new-energy-box-change 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;Current Transformer--LMZK Wound Current Transformer300\/5a&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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-new-energy-box-change product_cat-oil-immersed-transformer product_cat-all-product product_cat-transformer 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;Current Transformer--LSY-10 transformer Integrated CT&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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-new-energy-box-change 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;current transformer--LXK high voltage zero sequence&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 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\/es\/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\/dry-type-distribution-transformer-6-10-KV-SCB-series-epoxy-resin-cast-1-1-2.webp\" 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\/es\/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=\"Lee m\u00e1s sobre &ldquo;dry type distribution transformer-6-10 KV SCB series epoxy resin cast&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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-new-energy-box-change 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\/es\/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\/es\/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=\"Lee m\u00e1s sobre &ldquo;Electrical Transformers--JDZ - 10  Power Voltage&rdquo;\" rel=\"nofollow\" data-success_message=\"\">Leer m\u00e1s<\/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 11 kV Transformer?<\/h2>\n<p class=\"subian-semv2-acbr-intro\">An 11 kV transformer is a distribution transformer whose primary connects to an 11kV network and whose secondary feeds the low-voltage system &#8211; usually 400V\/230V three-phase, with 433V still found where older networks predate the standardisation to 400V. It is the workhorse of electricity distribution in the UK and Commonwealth markets.<\/p>\n<p>The rating is selected from the peak load and growth of the served area, and the ratio and vector group are set by the network operator&#8217;s standard. Because 11kV is a distribution level, the emphasis is on low losses, reliable sealing against weather and moisture, and easy replacement within an existing network.<\/p>\n<\/div>\n<ul class=\"subian-semv2-acbr-points\">\n<li><strong>11\/0.4kV &amp; 11\/0.433kV<\/strong> &#8211; ratios matched to UK and Commonwealth practice.<\/li>\n<li><strong>25 kVA upward<\/strong> &#8211; pole, ground and substation installations.<\/li>\n<li><strong>Oil-immersed standard<\/strong> &#8211; dry-type available for indoor duty.<\/li>\n<li><strong>Low-loss designs<\/strong> &#8211; options from conventional to amorphous core.<\/li>\n<li><strong>Routine-tested<\/strong> &#8211; each unit issued with its test report.<\/li>\n<li><strong>Export experience<\/strong> &#8211; 11kV networks served across 50+ countries.<\/li>\n<\/ul>\n<\/div>\n<h3 class=\"subian-semv2-acbr-subtitle\">Installation Types<\/h3>\n<p class=\"subian-semv2-acbr-subtitle-desc\">The network layout decides the unit type:<\/p>\n<div class=\"subian-t2-types\">\n<div class=\"subian-t2-type\">\n<h4>Pole-mounted<\/h4>\n<p>small ratings (typically 25-100 kVA) for rural overhead networks.<\/p>\n<\/div>\n<div class=\"subian-t2-type\">\n<h4>Ground-level \/ plinth<\/h4>\n<p>medium ratings for villages, farms and small commercial loads.<\/p>\n<\/div>\n<div class=\"subian-t2-type\">\n<h4>Substation type<\/h4>\n<p>larger units inside compact substations and distribution buildings.<\/p>\n<\/div>\n<\/div>\n<h3 class=\"subian-semv2-acbr-subtitle\">11 kV Transformer Technical Data (Typical)<\/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 capacity<\/th>\n<td>25 &#8211; 2,500 kVA (typical range)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Primary voltage<\/th>\n<td>11 kV<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Secondary voltage<\/th>\n<td>400 V \/ 230 V or 433 V<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Vector group<\/th>\n<td>Dyn11 \/ Dyn1<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Cooling<\/th>\n<td>ONAN (oil) \/ air (dry)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Frequency<\/th>\n<td>50 Hz<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Standard<\/th>\n<td>IEC 60076 \/ BS EN 50464<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\">\n<h2 id=\"subian-semv2-acbr-title\" style=\"font-size: 26px; line-height: 1.35;\">Choosing the Rating and Checking Full-Load Current<\/h2>\n<p>To size an 11kV distribution transformer, add the connected load in kW, apply the expected diversity, divide by the power factor, and add margin for motor starting and growth. Common ratings on 11kV networks are 100, 200, 250, 315, 500 and 630 kVA, with smaller pole units at 25-100 kVA.<\/p>\n<p>The full-load current on the 11kV side is small &#8211; about 5.2 A per 100 kVA &#8211; while the 400V secondary carries roughly 144 A per 100 kVA. These figures set the fuse or breaker ratings and the LV cable sizes downstream.<\/p>\n<h3 class=\"subian-semv2-acbr-subtitle\">Indicative currents at common ratings (11\/0.4kV)<\/h3>\n<div class=\"subian-semv2-acbr-table-wrap\">\n<table class=\"subian-semv2-acbr-specs\">\n<tbody>\n<tr>\n<th scope=\"row\">100 kVA<\/th>\n<td>primary approx. 5.2 A \u00b7 secondary approx. 144 A<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">250 kVA<\/th>\n<td>primary approx. 13.1 A \u00b7 secondary approx. 361 A<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">500 kVA<\/th>\n<td>primary approx. 26.2 A \u00b7 secondary approx. 722 A<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Real load at 0.8 pf<\/th>\n<td>kW = kVA x 0.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\">\n<h2 id=\"subian-semv2-acbr-title\" style=\"font-size: 26px; line-height: 1.35;\">Replacement of an Existing 11kV Transformer<\/h2>\n<p>When replacing a failed unit, collect the nameplate data and, if possible, the old outline drawing: primary and secondary voltage, vector group, impedance, tapping range, and the physical mounting and terminal arrangement.<\/p>\n<p>With that data we match the new unit to the network&#8217;s protection settings and the existing structure. Where only part of the data is available, our engineers can work from the network standard and measurements taken on site.<\/p>\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\">Building an 11kV Transformer for Export<\/h2>\n<p class=\"subian-semv2-factory-intro\">Core, winding, drying, oil filling and testing are carried out in-house so the 11kV unit matches the ordered ratio and loss specification, with documentation prepared for the destination network.<\/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-winding-process.webp\" alt=\"Winding &amp; Core\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Winding &amp; Core<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Coils are wound for the 11kV ratio with controlled insulation and tapping range.<\/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-transformer-drying-process.webp\" alt=\"Vacuum Drying\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Vacuum Drying<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Careful drying protects the insulation before oil filling or resin casting.<\/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=\"Testing\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Testing<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Ratio, losses, insulation and dielectric checks per unit.<\/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--d\"><img decoding=\"async\" class=\"subian-semv2-bg-img\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-transformer-final-process.webp\" alt=\"Packing &amp; Export\" \/><\/p>\n<h3 class=\"subian-semv2-factory-card-title\">Packing &amp; Export<\/h3>\n<p class=\"subian-semv2-factory-card-text\">Protected packing and documents prepared for the destination port.<\/p>\n<p><a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">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\">11 kV Transformer Price &amp; Quotation<\/h2>\n<p>Request a factory quotation with your rating, secondary voltage and installation type. We confirm the ratio, losses and outline drawing before production, and single units and programmes are both supported.<\/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 Supply<\/h2>\n<p class=\"subian-semv2-head-intro\">Distributors serving 11kV networks can take transformers under their own brand with local-standard 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\" \/><\/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\">Private-label units with network-standard ratios and packaging.<\/p>\n<hr class=\"subian-semv2-card-line\" \/>\n<p class=\"subian-semv2-card-features\">Factory direct \u00b7 Test docs \u00b7 Export support<\/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=\"Wholesale Supply\" \/><\/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\">Stock programmes for distributors serving 11kV areas.<\/p>\n<hr class=\"subian-semv2-card-line\" \/>\n<p class=\"subian-semv2-card-features\">Factory direct \u00b7 Test docs \u00b7 Export support<\/p>\n<\/div>\n<\/article>\n<article class=\"subian-semv2-card\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/08\/subian-electric-quality-center.webp\" alt=\"Distributor Support\" \/><\/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\">Technical data and tender documentation for channel partners.<\/p>\n<hr class=\"subian-semv2-card-line\" \/>\n<p class=\"subian-semv2-card-features\">Factory direct \u00b7 Test docs \u00b7 Export support<\/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\">11 kV vs Other Distribution Voltages<\/h2>\n<p>11kV is one of several medium-voltage levels; 10kV dominates in many countries, 20kV in parts of Europe, and 33kV for higher-capacity feeders. The equipment for each class is similar in principle but differs in insulation levels, clearances and cost.<\/p>\n<p>For a buyer in an 11kV market the decision is not the voltage &#8211; it is already set by the network &#8211; but the transformer quality, losses and documentation. If a project spans two voltage levels, transformers and switchgear for both can be supplied together from the same factory.<\/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=\"Product 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-transformers-production-workshop.webp\" alt=\"Factory suppliers and manufacturers in China\" \/><\/div>\n<div class=\"subian-semv2-brands-text\">\n<h2 id=\"subian-semv2-brands-title\">Choosing an 11 kV Transformer Supplier<\/h2>\n<p>Compare the guaranteed loss values, the sealing and corrosion protection for outdoor duty, and the type-test evidence for the design. For replacement units, match the old nameplate: ratio, vector group, impedance and tapping range must fit the existing network settings.<\/p>\n<p>Subian manufactures under ISO9001, ISO14001, ISO45001, CE and UL certified systems and exports 11kV-class units to markets across Asia, Africa, the Middle East and beyond, with test reports and drawings issued per order.<\/p>\n<p>Confirm the supplier can provide replacement units that match existing installation footprints &#8211; outline dimensions and terminal arrangements matter as much as electrical data when swapping a failed unit.<\/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 distribution transformer production runs under ISO9001, ISO14001 and ISO45001 systems with CE and UL certification and type-test evidence 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\">\n<div class=\"swiper-wrapper\">\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"1 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/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\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-10kv-dry-type-certificate.webp\" alt=\"10 kV Dry-Type Transformer Certificate\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">10 kV Dry-Type Transformer Certificate<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"2 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-cb-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"35 kV Transformer CB Certificate\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-cb-certificate.webp\" alt=\"35 kV Transformer CB Certificate\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">35 kV Transformer CB Certificate<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"3 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-ce-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"35 kV Transformer CE Verification\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-35kv-ce-certificate.webp\" alt=\"35 kV Transformer CE Verification\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">35 kV Transformer CE Verification<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"4 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ce-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"Transformer CE Certificate\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ce-certificate.webp\" alt=\"Transformer CE Certificate\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">Transformer CE Certificate<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"5 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-cn26i11c-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"Dry-Type Transformer Test Verification\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-cn26i11c-certificate.webp\" alt=\"Dry-Type Transformer Test Verification\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">Dry-Type Transformer Test Verification<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"6 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-14001-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 14001 Environmental Management\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-14001-certificate.webp\" alt=\"ISO 14001 Environmental Management\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">ISO 14001 Environmental Management<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"7 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-45001-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 45001 Health &amp; Safety\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-45001-certificate.webp\" alt=\"ISO 45001 Health &amp; Safety\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">ISO 45001 Health &amp; Safety<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"8 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-9001-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"ISO 9001 Quality Management\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-iso-9001-certificate.webp\" alt=\"ISO 9001 Quality Management\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">ISO 9001 Quality Management<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"9 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/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\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ssz22-63000-110-nx1-certificate.webp\" alt=\"110 kV Transformer Type Test Report\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">110 kV Transformer Type Test Report<\/strong><\/a><\/div>\n<div class=\"swiper-slide\" role=\"group\" aria-label=\"10 \/ 10\"><a class=\"subian-ab-cert glightbox3\" href=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ul-certificate.webp\" data-gallery=\"subian-about-certificates\" data-title=\"UL Certificate of Compliance\"><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/subian-electric-ul-certificate.webp\" alt=\"UL Certificate of Compliance\" width=\"600\" height=\"848\" \/><strong class=\"f18 lh-13\">UL Certificate of Compliance<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\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=\"\/450-kva-transformer\/\">450 kVA Transformer<\/a><\/li>\n<li><a href=\"\/european-power-transformer\/\">European Power Transformer<\/a><\/li>\n<li><a href=\"\/20kv-oil-immersed-transformer-manufacturer\/\">20kV Oil Immersed Transformer Manufacturer<\/a><\/li>\n<li><a href=\"\/sh15-m-amorphous-alloy-oil-immersed-transformer-factory\/\">SH15-M Amorphous Transformer Factory<\/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<\/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\">11 kV Transformer FAQ<\/h2>\n<p class=\"subian-faq-contact__intro\">Common questions about 11kV transformers, their ratings and replacement.<\/p>\n<div class=\"subian-faq\">\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What is an 11kV transformer?<\/summary>\n<div class=\"subian-faq__answer\">An 11kV transformer is a distribution transformer whose primary winding is designed for an 11kV three-phase network. It steps the 11kV primary voltage down for local use &#8211; commonly to 400\/415V three-phase (230\/240V single-phase) for commercial and residential supply, or to another industrial voltage where the distribution system requires it.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">How do you convert 11kV to 440V?<\/summary>\n<div class=\"subian-faq__answer\">A distribution transformer with an 11kV primary and a 433V secondary does the conversion in one step. The secondary is wound for 433V at no load so it sits close to 440V under typical loading, and the vector group is usually Dyn11, which gives the standard 30-degree displacement between primary and secondary. For 440V exact design, the turns ratio is calculated on the no-load voltage rather than the rated voltage.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What is an 11kV potential transformer?<\/summary>\n<div class=\"subian-faq__answer\">An 11kV potential transformer (voltage transformer) is an instrument transformer that steps 11kV down to a safe, standard secondary voltage &#8211; 110V or 100V, usually phase-to-phase, or 110\/\u221a3V phase-to-neutral &#8211; for protection relays, meters and control circuits. It is specified by ratio, accuracy class (0.2\/0.5\/3P) and burden, and is not designed to supply load current.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What is the rating of an 11kV 440V transformer?<\/summary>\n<div class=\"subian-faq__answer\">Distribution transformers for 11kV\/0.433kV duty are most common between 100kVA and 2,500kVA, with 250-1,000kVA the typical sweet spot for industrial and commercial sites. Rating is chosen from the connected load plus growth margin, and the 80% loading rule is commonly applied: select a transformer whose rated kVA is about 125% of the expected maximum demand so it runs inside its economical loading band.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">How many amps can an 11kV transformer supply?<\/summary>\n<div class=\"subian-faq__answer\">Secondary current at 400V is roughly 1.44A per kVA of rating (I = kVA x 1,000 \/ (400 x 1.732)). A 500kVA unit therefore delivers about 720A at 400V, a 1,000kVA unit about 1,440A. On the 11kV primary the current is about 27 times lower &#8211; around 26A and 52A respectively.<\/div>\n<\/details>\n<details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What voltage comes out of an 11kV transformer?<\/summary>\n<div class=\"subian-faq__answer\">The secondary no-load voltage is normally 433V (11kV\/0.433kV ratio) for networks distributed at 415V or 440V under load, or 400V where the system standard is 230\/400V. Confirm the exact ratio with the utility before ordering, because the on-load voltage &#8211; not the nameplate ratio &#8211; is what your equipment actually sees.<\/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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It steps the 11kV primary voltage down for local use - commonly to 400\/415V three-phase (230\/240V single-phase) for commercial and residential supply, or to another industrial voltage where the distribution system requires it.\"}}, {\"@type\": \"Question\", \"name\": \"How do you convert 11kV to 440V?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A distribution transformer with an 11kV primary and a 433V secondary does the conversion in one step. The secondary is wound for 433V at no load so it sits close to 440V under typical loading, and the vector group is usually Dyn11, which gives the standard 30-degree displacement between primary and secondary. 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Confirm the exact ratio with the utility before ordering, because the on-load voltage - not the nameplate ratio - is what your equipment actually sees.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>COMPANY PROFILE 11 kV Transformer Factory &amp; Manufacturer Subian Electric manufactures distribution transformers for 11kV networks &#8211; the standard medium-voltage level in the UK, Ireland, Malaysia and many other markets. Our range covers oil-immersed and dry-type units from small pole-mounted ratings upward, engineered for 11kV\/400V and 11kV\/433V duty. Built at our 50,000-square-metre factory in Xuzhou [&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-11432","page","type-page","status-publish","hentry"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/pages\/11432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/comments?post=11432"}],"version-history":[{"count":1,"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/pages\/11432\/revisions"}],"predecessor-version":[{"id":11433,"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/pages\/11432\/revisions\/11433"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/es\/wp-json\/wp\/v2\/media?parent=11432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}