{"id":10093,"date":"2026-08-22T09:02:57","date_gmt":"2026-08-22T01:02:57","guid":{"rendered":"https:\/\/www.subian-electric.com\/?page_id=10093"},"modified":"2026-11-03T17:59:07","modified_gmt":"2026-11-03T09:59:07","slug":"potential-transformer-substation-manufacturers","status":"publish","type":"page","link":"https:\/\/subian-electric.com\/ko\/potential-transformer-substation-manufacturers\/","title":{"rendered":"\uc7a0\uc7ac\uc801 \ubcc0\uc555\uae30 \ubcc0\uc804\uc18c \uc81c\uc870\uc5c5\uccb4"},"content":{"rendered":"\n<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><h1>Potential Transformer Substation Manufacturers &#8211; Metering Grade Supply<\/h1><p>Subian Electric manufactures potential transformers for substation metering and protection at its 50,000-square-metre factory in Xuzhou, Jiangsu, China. Subian&#8217;s 350+ employees have served utilities and panel builders in 50+ countries since 2019.<\/p><p>As a factory-direct manufacturer and supplier, Subian provides PTs with accurate ratios, stable accuracy and complete test documentation.<\/p><p>Send your voltage class and accuracy requirements. Subian&#8217;s export team will respond with a quotation and technical data.<\/p><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><div class=\"hy-lb-btn-wrap\" style=\"margin-top: 20px;\"><a class=\"hy-lb-btn\" href=\"\/contact-us\/\">Get a Quote<\/a><\/div><\/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-testing-process.webp\" alt=\"Potential transformer testing at Subian\"\/><\/div>\n<div class=\"web-sem-float-card\"><strong>Factory-Direct Manufacturer<\/strong>\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>0.2-3P<\/strong>Accuracy Class<\/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\">Substation Potential Transformers Manufactured by Subian<\/h2>\n<p class=\"singlepage-section-desc\">Potential transformers for substation metering and protection, 10 kV to 35 kV class, cast resin or oil immersed, with routine testing on every unit.<\/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-1932 status-publish first 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\/ko\/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\/ko\/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=\"&ldquo;Current Transformer --10KV Indoor High Voltage&rdquo;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30\" rel=\"nofollow\" data-success_message=\"\">\ub354 \ubcf4\uae30<\/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 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\/ko\/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\/ko\/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=\"&ldquo;Current Transformer--LMZK Wound Current Transformer300\/5a&rdquo;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30\" rel=\"nofollow\" data-success_message=\"\">\ub354 \ubcf4\uae30<\/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 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\/ko\/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\/ko\/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=\"&ldquo;Current Transformer--LSY-10 transformer Integrated CT&rdquo;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30\" rel=\"nofollow\" data-success_message=\"\">\ub354 \ubcf4\uae30<\/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-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\/ko\/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\/ko\/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=\"&ldquo;Electrical Transformers--JDZ - 10  Power Voltage&rdquo;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30\" rel=\"nofollow\" data-success_message=\"\">\ub354 \ubcf4\uae30<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1934\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<li class=\"product type-product post-1968 status-publish first instock product_cat-new-energy-box-change product_cat-all-product product_cat-transformer product_tag-box-substation product_tag-compact-substation product_tag-prefabricated-substation has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/subian-electric.com\/ko\/product\/yb-series-prefabricated-substation\/\" 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\/5f5f5d99-9cae-48c0-ae94-4bb731ff6c42.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"YB series prefabricated substation\" \/><h2 class=\"woocommerce-loop-product__title\">YB series prefabricated substation<\/h2>\n<\/a><a href=\"https:\/\/subian-electric.com\/ko\/product\/yb-series-prefabricated-substation\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1968\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"1968\" data-product_sku=\"\" aria-label=\"&ldquo;YB series prefabricated substation&rdquo;\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30\" rel=\"nofollow\" data-success_message=\"\">\ub354 \ubcf4\uae30<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1968\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n<\/li>\n<\/ul>\n<\/div>\n\n<\/div>\n<\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"subian-semv2-acbr-title\">\n<section class=\"subian-semv2-compare\"><div class=\"subian-semv2-compare-row\"><div class=\"subian-semv2-compare-text\"><h2 id=\"subian-semv2-acbr-title\">What Is a Potential Transformer and Why Is Accuracy Important?<\/h2>\n<p>A potential transformer converts substation voltage to a standard low level for instruments. Accuracy matters because every protection decision and every meter reading starts from the PT signal.<br\/><br\/>A correctly rated PT with the right accuracy class keeps protection sensitive and billing fair. Subian confirms ratio, class and burden with your scheme before production.<\/p><\/div><div class=\"subian-semv2-compare-media\"><img src=\"\/wp-content\/uploads\/2026\/08\/Electrical-Transformers-JDZ-10-Power-Voltage-2.webp\" alt=\"JDZ - 10 Power Voltage manufactured by Subian Electric\" loading=\"lazy\" decoding=\"async\"\/><\/div><\/div><\/section><section class=\"subian-semv2-brands\"><div class=\"subian-semv2-brands-row\"><div class=\"subian-semv2-brands-media\"><img src=\"\/wp-content\/uploads\/2026\/08\/Electrical-Transformers-JDZ-10-Power-Voltage-3.webp\" alt=\"JDZ - 10 Power Voltage manufactured by Subian Electric\" loading=\"lazy\" decoding=\"async\"\/><\/div><div class=\"subian-semv2-brands-text\"><h3 class=\"subian-semv2-acbr-subtitle\">What Buyers Check Before Ordering<\/h3><ul class=\"subian-semv2-acbr-points\"><li><strong>Metering &amp; protection<\/strong> &#8211; accuracy classes from 0.2 to 3P.<\/li><li><strong>10-35 kV class<\/strong> &#8211; voltage classes for substation duty.<\/li><li><strong>Stable accuracy<\/strong> &#8211; temperature-stable designs for long-term billing.<\/li><li><strong>50,000m\u00b2 factory<\/strong> &#8211; in-house winding, casting and testing.<\/li><li><strong>350+ employees<\/strong> &#8211; engineering, quality and export teams.<\/li><li><strong>OEM \/ ODM &amp; wholesale<\/strong> &#8211; custom branding, packaging and volume supply.<\/li><\/ul><\/div><\/div><\/section><h3 class=\"subian-semv2-acbr-subtitle\">Main Types of Substation Potential Transformers<\/h3>\n<p class=\"subian-semv2-acbr-subtitle-desc\">Subian manufactures two PT types:<\/p>\n\n<div class=\"subian-semv2-grid\"><article class=\"subian-semv2-card\"><img src=\"\/wp-content\/uploads\/2026\/08\/h62d1d2268850460b947a0f5239537f12m.webp\" alt=\"Metering PT - Potential Transformer Substation\" loading=\"lazy\" decoding=\"async\"\/><div class=\"subian-semv2-card-body\"><div class=\"subian-semv2-card-top\"><h4 class=\"subian-semv2-card-title\">Metering PT<\/h4><p><span class=\"subian-semv2-card-tag\">Metering<\/span><\/p><\/div><p class=\"subian-semv2-card-desc\">High-accuracy units for energy measurement and billing.<\/p><hr class=\"subian-semv2-card-line\"\/><p class=\"subian-semv2-card-features\">Class 0.5 or 0.2S \/ IEC 61869-2<\/p><p><a class=\"subian-semv2-factory-link\" href=\"\/current-transformer-in-switchgear-manufacturers\/\">See the range<\/a><\/p><\/div><\/article><article class=\"subian-semv2-card\"><img src=\"\/wp-content\/uploads\/2026\/08\/Electrical-Transformers-JDZ-10-Power-Voltage-1.webp\" alt=\"Protection PT - Potential Transformer Substation\" loading=\"lazy\" decoding=\"async\"\/><div class=\"subian-semv2-card-body\"><div class=\"subian-semv2-card-top\"><h4 class=\"subian-semv2-card-title\">Protection PT<\/h4><p><span class=\"subian-semv2-card-tag\">Protection<\/span><\/p><\/div><p class=\"subian-semv2-card-desc\">Units for voltage protection and synchronising schemes.<\/p><hr class=\"subian-semv2-card-line\"\/><p class=\"subian-semv2-card-features\">5P10 or 5P20 \/ IEC 61869-2<\/p><p><a class=\"subian-semv2-factory-link\" href=\"\/high-voltage-current-transformer-manufacturers\/\">See the range<\/a><\/p><\/div><\/article><\/div><h3 class=\"subian-semv2-acbr-subtitle\">Substation PT 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>10 kV \/ 35 kV class<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Secondary voltage<\/th>\n<td>100 V \/ 110 V \/ 120 V<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Accuracy class<\/th>\n<td>0.2 \/ 0.5 \/ 3P<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Insulation<\/th>\n<td>Cast resin \/ oil immersed<\/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\">Standard<\/th>\n<td>IEC 61869<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"subian-semv2-acbr\" aria-labelledby=\"potential-transformer-substation-manufacturers-compare\"><h2 id=\"potential-transformer-substation-manufacturers-compare\" style=\"font-size:26px;line-height:1.35;\">How to Compare Potential Transformer Substation Suppliers<\/h2><p>Quotations for this equipment often look identical on the first page. The difference sits in what is attached behind the number, and in the three or four lines that decide the installed cost rather than the purchase price.<\/p><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><thead><tr><th scope=\"col\">What to compare<\/th><th scope=\"col\">What a thin quotation leaves out<\/th><th scope=\"col\">What to ask for<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Enclosure construction<\/th><td>A steel box<\/td><td>Gauge, insulation, roof slope and the walk-in or non-walk-in choice<\/td><\/tr><tr><th scope=\"row\">Ventilation<\/th><td>Passive louvers<\/td><td>Air path, filter class and the internal temperature rise at full load<\/td><\/tr><tr><th scope=\"row\">Earthing<\/th><td>A terminal provided<\/td><td>Earth bar size, earth switch and the touch-voltage calculation<\/td><\/tr><tr><th scope=\"row\">Auxiliary supply<\/th><td>Not mentioned<\/td><td>AC and DC auxiliary circuits, battery autonomy and the alarm list<\/td><\/tr><tr><th scope=\"row\">SCADA interface<\/th><td>Optional<\/td><td>Protocol, points list and whether IEC 61850 is required<\/td><\/tr><tr><th scope=\"row\">Documentation<\/th><td>Wiring diagrams<\/td><td>SLD, wiring, setting sheets and the as-built set in the agreed language<\/td><\/tr><\/tbody><\/table><\/div><p>Buyers who compare on price alone usually discover the gap at commissioning. The six lines above are the ones that decide whether the unit or the panel can be energised without site work. <a href=\"\/oem-odm\/\">OEM and ODM supply<\/a> is available where the nameplate, manual and packing have to carry a different brand.<\/p><\/section><section class=\"subian-semv2-acbr\" aria-labelledby=\"potential-transformer-substation-manufacturers-ref\"><h2 id=\"potential-transformer-substation-manufacturers-ref\" style=\"font-size:26px;line-height:1.35;\">Potential Transformer Substation Standards Buyers Ask For<\/h2><p>The purchase specification decides the insulation level, the enclosure test and the nameplate data. These are the standards buyers normally name in the enquiry.<\/p><div class=\"subian-semv2-acbr-table-wrap\"><table class=\"subian-semv2-acbr-specs\"><thead><tr><th scope=\"col\">Standard<\/th><th scope=\"col\">What it covers<\/th><th scope=\"col\">When it is asked for<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">IEC 62271-202<\/th><td>Prefabricated substations<\/td><td>Compact and skid-mounted packages<\/td><\/tr><tr><th scope=\"row\">IEC 60076-1<\/th><td>Power transformers<\/td><td>The transformer inside the package<\/td><\/tr><tr><th scope=\"row\">IEC 62271-200<\/th><td>MV switchgear<\/td><td>RMU and incoming panels<\/td><\/tr><tr><th scope=\"row\">IEC 61439-2<\/th><td>LV assemblies<\/td><td>The LV distribution board<\/td><\/tr><tr><th scope=\"row\">IEEE C57.12.28<\/th><td>Enclosure integrity and tamper resistance<\/td><td>Public-access sites in North America<\/td><\/tr><tr><th scope=\"row\">IEC 60529<\/th><td>Degrees of protection (IP code)<\/td><td>Outdoor and coastal sites<\/td><\/tr><\/tbody><\/table><\/div><p>Where two standards conflict, the purchase specification wins and the conflict is recorded on the drawing before production. Type test reports are issued against the model, so ask for the report that names the rating you are buying.<\/p><\/section><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\">PT Manufacturing at Subian&#8217;s 50,000 m\u00b2 Factory<\/h2>\n<p class=\"subian-semv2-factory-intro\">From winding to casting, assembly and testing &#8211; every PT is built and tested at Subian&#8217;s Xuzhou facility with accuracy verification.<\/p>\n\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\"\/>\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<a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a>\n\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\"\/>\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<a class=\"subian-semv2-factory-link\" href=\"\/about-us\/\">Learn More \u2192<\/a>\n\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\"\/>\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<a class=\"subian-semv2-factory-link\" href=\"\/oem-odm\/\">Learn More \u2192<\/a>\n\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\"\/>\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<a class=\"subian-semv2-factory-link\" href=\"\/oem-odm\/\">Learn More \u2192<\/a>\n\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\"><h2 id=\"subian-semv2-cta-title\">Substation Potential Transformer Factory Price &#8211; Request a Quote<\/h2><p>Send your specification, voltage level, capacity and quantity. Subian&#8217;s export team will respond with factory pricing, lead time and drawings for approval.<\/p><div class=\"subian-semv2-cta-actions\"><a class=\"subian-semv2-cta-btn subian-semv2-cta-btn--light\" href=\"\/oem-odm\/\">Get Started \u2192<\/a>\n<a class=\"subian-semv2-cta-btn subian-semv2-cta-btn--red\" href=\"\/contact-us\/\">Contact Us \u2192<\/a><\/div><\/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 PT Supply for Panel Builders<\/h2>\n<p class=\"subian-semv2-head-intro\">Panel builders and distributors can brand or resell PTs with custom nameplates and documentation.<\/p>\n\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-testing-process.webp\" alt=\"OEM ODM manufacturing service\"\/>\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<span class=\"subian-semv2-card-tag\">Factory-Direct<\/span>\n\n<\/div>\n<p class=\"subian-semv2-card-desc\">Custom branding, packaging and product variants built on Subian&#8217;s standard platforms &#8211; from a nameplate to full product design.<\/p>\n\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\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\"\/>\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<span class=\"subian-semv2-card-tag\">Volume Pricing<\/span>\n\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\n<hr class=\"subian-semv2-card-line\"\/>\n<p class=\"subian-semv2-card-features\">Container MOQ \u00b7 Mixed models \u00b7 Global shipping<\/p>\n\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\"\/>\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<span class=\"subian-semv2-card-tag\">Channel Partners<\/span>\n\n<\/div>\n<p class=\"subian-semv2-card-desc\">Dedicated account management, technical documentation and priority production for distributors and project clients.<\/p>\n\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\n<\/div>\n<\/article><\/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\"><h2 id=\"subian-semv2-compare-title\">Accuracy Class Selection: Metering vs Protection PTs<\/h2><p>Metering PTs need high accuracy at normal operating voltage (0.2-0.5 class); protection PTs need predictable behaviour under fault conditions (3P class).<\/p><p>Subian confirms the accuracy class with your scheme before production, so the PT matches its job.<\/p><\/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-testing-process.webp\" alt=\"Manufacturers and suppliers in China\"\/><\/div>\n<div class=\"subian-semv2-brands-text\"><h2 id=\"subian-semv2-brands-title\">Choosing a Potential Transformer Substation Manufacturer<\/h2><p>Verify accuracy test evidence, insulation quality and reference deliveries to utilities or panel builders.<\/p><p>Subian Electric offers a 50,000m\u00b2 factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.<\/p><p>Send your voltage class and accuracy requirements &#8211; Subian confirms the design before production.<\/p><div class=\"hy-lb-btn-wrap\"><a class=\"hy-lb-btn\" href=\"\/contact-us\/\">Get a Quote \u2192<\/a><\/div><\/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\">Subian&#8217;s potential transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.<\/p>\n\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\">\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\"\/>\n<strong class=\"f18 lh-13\">10 kV Dry-Type Transformer Certificate<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">35 kV Transformer CB Certificate<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">35 kV Transformer CE Verification<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">Transformer CE Certificate<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">Dry-Type Transformer Test Verification<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">ISO 14001 Environmental Management<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">ISO 45001 Health &amp; Safety<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">ISO 9001 Quality Management<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">110 kV Transformer Type Test Report<\/strong>\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\">\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\"\/>\n<strong class=\"f18 lh-13\">UL Certificate of Compliance<\/strong>\n<\/a><\/div>\n<\/div>\n\u00a0\n\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 \t<li><a href=\"\/electric-distribution-transformer-manufacturers\/\">Electric Distribution Transformer Manufacturers<\/a><\/li>\n \t<li><a href=\"\/high-voltage-electrical-equipment-manufacturers\/\">High Voltage Electrical Equipment Manufacturers<\/a><\/li>\n \t<li><a href=\"\/potential-transformer-substation-manufacturers\/\">Voltage Transformer In Substation Manufacturers<\/a><\/li>\n \t<li><a href=\"\/about-us\/\">About Subian&#8217;s Factory<\/a><\/li>\n \t<li><a href=\"\/oem-odm\/\">OEM \/ ODM Programs<\/a><\/li>\n \t<li><a href=\"\/contact-us\/\">Contact Subian&#8217;s 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>\n<h2 class=\"subian-faq-contact__title\">Potential Transformer Substation FAQ<\/h2>\n<p class=\"subian-faq-contact__intro\">Common questions about potential transformers for substations and factory sourcing.<\/p>\n\n<div class=\"subian-faq\"><details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What is a potential transformer used for in a substation?<\/summary>\n<div class=\"subian-faq__answer\">It steps substation voltage down to a standard low level for protection relays, meters and synchronising equipment.<\/div>\n<\/details><details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What accuracy class should I choose?<\/summary>\n<div class=\"subian-faq__answer\">0.2-0.5 for metering and billing, 3P for protection &#8211; Subian confirms the class with your scheme.<\/div>\n<\/details><details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What secondary voltages are available?<\/summary>\n<div class=\"subian-faq__answer\">Standard secondaries are 100 V, 110 V and 120 V.<\/div>\n<\/details><details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">Can PTs be supplied as part of a substation package?<\/summary>\n<div class=\"subian-faq__answer\">Yes &#8211; integrated with switchgear or supplied loose with matching documentation.<\/div>\n<\/details><details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What testing is done?<\/summary>\n<div class=\"subian-faq__answer\">Ratio, polarity, insulation and accuracy tests with records supplied.<\/div>\n<\/details><details class=\"subian-faq__item\">\n<summary class=\"subian-faq__question\">What are your delivery terms?<\/summary>\n<div class=\"subian-faq__answer\">FOB \/ CIF \/ DDP terms are available, with lead times confirmed against your project schedule.<\/div>\n<\/details><details class=\"subian-faq__item\"><summary class=\"subian-faq__question\">What is included in a Potential Transformer Substation?<\/summary><div class=\"subian-faq__answer\">The enclosure, the transformer, the MV switchgear or RMU, the LV distribution board, protection and control, auxiliary supply, internal wiring and the factory test. Civil works, foundations and cable termination are normally by the buyer.<\/div><\/details><details class=\"subian-faq__item\"><summary class=\"subian-faq__question\">Is a walk-in enclosure available?<\/summary><div class=\"subian-faq__answer\">Yes. Walk-in designs give maintenance access without de-energising the MV side; non-walk-in units are smaller and cheaper where the operator only needs front access.<\/div><\/details><\/div>\n<\/div>\n<div class=\"subian-faq-contact__form\">\n<p class=\"subian-faq-contact__form-label\">Contact Subian<\/p>\n\n<h3 class=\"subian-faq-contact__form-title\">Need the Right Specification?<\/h3>\n<p class=\"subian-faq-contact__form-copy\">Tell Subian your target market, product type, quantity and technical requirements. Subian&#8217;s 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 ff_has_v3_recptcha ffs_default\" data-form_instance=\"ff_form_instance_1_1\" method=\"POST\" data-recptcha_key=\"6LeYOw0uAAAAAI4O2znHFO8pLGzi5NpiBNdweYUC\" ><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        >\n            <div class=\"ff-el-input--label asterisk-right\">\n                <label for=\"ff_1_item_sf\" aria-label=\"Subscribe\">\n                    Subscribe                <\/label>\n            <\/div>\n            <div class=\"ff-el-input--content\">\n                <input type=\"text\"\n                       name=\"item_1__fluent_sf\"\n                       class=\"ff-el-form-control\"\n                       id=\"ff_1_item_sf\"\n                \/>\n            <\/div>\n        <\/div>\n                <input type=\"hidden\" id=\"__fluent_protection_token_1\" class=\"fluent-form-token-field\" name=\"__fluent_protection_token_1\">\n        <input type='hidden' name='__fluent_form_embded_post_id' value='10093' \/><input type=\"hidden\" id=\"_fluentform_1_fluentformnonce\" name=\"_fluentform_1_fluentformnonce\" value=\"e48903d6da\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/ko\/wp-json\/wp\/v2\/pages\/10093\" \/><div data-type=\"name-element\" data-name=\"names\" class=\" ff-field_container ff-name-field-wrapper\" ><div class='ff-t-container'><div class='ff-t-cell '><div class='ff-el-group'><div class=\"ff-el-input--label asterisk-right\"><label for='ff_1_names_first_name_' id='label_ff_1_names_first_name_' >First Name<\/label><\/div><div class='ff-el-input--content'><input type=\"text\" name=\"names[first_name]\" id=\"ff_1_names_first_name_\" class=\"ff-el-form-control\" aria-invalid=\"false\" aria-required=false><\/div><\/div><\/div><div class='ff-t-cell '><div class='ff-el-group'><div class=\"ff-el-input--label asterisk-right\"><label for='ff_1_names_last_name_' id='label_ff_1_names_last_name_' >Last Name<\/label><\/div><div class='ff-el-input--content'><input type=\"text\" name=\"names[last_name]\" id=\"ff_1_names_last_name_\" class=\"ff-el-form-control\" aria-invalid=\"false\" aria-required=false><\/div><\/div><\/div><\/div><\/div><div class='ff-el-group'><div class=\"ff-el-input--label ff-el-is-required asterisk-right\"><label for='ff_1_email' id='label_ff_1_email' aria-label=\"Email Address\">Email Address<\/label><\/div><div class='ff-el-input--content'><input type=\"email\" name=\"email\" id=\"ff_1_email\" class=\"ff-el-form-control\" data-name=\"email\"  aria-invalid=\"false\" aria-required=true><\/div><\/div><div class='ff-el-group'><div class=\"ff-el-input--label asterisk-right\"><label for='ff_1_subject' id='label_ff_1_subject' aria-label=\"Subject\">Subject<\/label><\/div><div class='ff-el-input--content'><input type=\"text\" name=\"subject\" class=\"ff-el-form-control\" data-name=\"subject\" id=\"ff_1_subject\"  aria-invalid=\"false\" aria-required=false><\/div><\/div><div class='ff-el-group'><div class=\"ff-el-input--label ff-el-is-required asterisk-right\"><label for='ff_1_message' id='label_ff_1_message' aria-label=\"Tell us about your project\">Tell us about your project<\/label><\/div><div class='ff-el-input--content'><textarea aria-required=\"true\" aria-labelledby=\"label_ff_1_message\" name=\"message\" id=\"ff_1_message\" class=\"ff-el-form-control\" rows=\"4\" cols=\"2\" data-name=\"message\" ><\/textarea><\/div><\/div><div class='ff-el-group ff-text-left ff_submit_btn_wrapper'><button type=\"submit\" class=\"ff-btn ff-btn-submit ff-btn-md ff_btn_style\"  aria-label=\"Send message\">Send message<\/button><\/div><\/fieldset><\/form><div id='fluentform_1_errors' class='ff-errors-in-stack ff_form_instance_1_1 ff-form-loading_errors ff_form_instance_1_1_errors'><\/div><\/div>            <script type=\"text\/javascript\">\n                window.fluent_form_ff_form_instance_1_1 = {\"id\":\"1\",\"ajaxUrl\":\"https:\\\/\\\/subian-electric.com\\\/wp-admin\\\/admin-ajax.php\",\"settings\":{\"layout\":{\"labelPlacement\":\"top\",\"helpMessagePlacement\":\"with_label\",\"errorMessagePlacement\":\"inline\",\"cssClassName\":\"\",\"asteriskPlacement\":\"asterisk-right\"},\"restrictions\":{\"denyEmptySubmission\":{\"enabled\":false}}},\"form_instance\":\"ff_form_instance_1_1\",\"form_id_selector\":\"fluentform_1\",\"rules\":{\"names[first_name]\":{\"required\":{\"value\":false,\"message\":\"This field is required\",\"global\":false,\"global_message\":\"This field is required\"}},\"names[middle_name]\":{\"required\":{\"value\":false,\"message\":\"This field is required\",\"global\":false,\"global_message\":\"This field is required\"}},\"names[last_name]\":{\"required\":{\"value\":false,\"message\":\"This field is required\",\"global\":false,\"global_message\":\"This field is required\"}},\"email\":{\"required\":{\"value\":true,\"message\":\"This field is 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 Subian&#8217;s export sales team.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a potential transformer used for in a substation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It steps substation voltage down to a standard low level for protection relays, meters and synchronising equipment.\"}}, {\"@type\": \"Question\", \"name\": \"What accuracy class should I choose?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"0.2-0.5 for metering and billing, 3P for protection - Subian confirms the class with your scheme.\"}}, {\"@type\": \"Question\", \"name\": \"What secondary voltages are available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Standard secondaries are 100 V, 110 V and 120 V.\"}}, {\"@type\": \"Question\", \"name\": \"Can PTs be supplied as part of a substation package?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes - integrated with switchgear or supplied loose with matching documentation.\"}}, {\"@type\": \"Question\", \"name\": \"What testing is done?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Ratio, polarity, insulation and accuracy tests with records supplied.\"}}, {\"@type\": \"Question\", \"name\": \"What are your delivery terms?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"FOB \/ CIF \/ DDP terms are available, with lead times confirmed against your project schedule.\"}}, {\"@type\": \"Question\", \"name\": \"What is included in a Potential Transformer Substation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The enclosure, the transformer, the MV switchgear or RMU, the LV distribution board, protection and control, auxiliary supply, internal wiring and the factory test. Civil works, foundations and cable termination are normally by the buyer.\"}}, {\"@type\": \"Question\", \"name\": \"Is a walk-in enclosure available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Walk-in designs give maintenance access without de-energising the MV side; non-walk-in units are smaller and cheaper where the operator only needs front access.\"}}]}<\/script>\n","protected":false},"excerpt":{"rendered":"<p>COMPANY PROFILE Potential Transformer Substation Manufacturers &#8211; Metering Grade Supply Subian Electric manufactures potential transformers for substation metering and protection at its 50,000-square-metre factory in Xuzhou, Jiangsu, China. Subian&#8217;s 350+ employees have served utilities and panel builders in 50+ countries since 2019. As a factory-direct manufacturer and supplier, Subian provides PTs with accurate ratios, stable [&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-10093","page","type-page","status-publish","hentry"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/pages\/10093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/comments?post=10093"}],"version-history":[{"count":3,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/pages\/10093\/revisions"}],"predecessor-version":[{"id":11926,"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/pages\/10093\/revisions\/11926"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ko\/wp-json\/wp\/v2\/media?parent=10093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}