{"id":1893,"date":"2026-01-04T06:24:04","date_gmt":"2026-01-04T06:24:04","guid":{"rendered":"https:\/\/yawei-powertransformer.com\/?post_type=product&#038;p=1893"},"modified":"2026-01-09T08:14:26","modified_gmt":"2026-01-09T08:14:26","slug":"345-kv-63-400-mva-high-voltage-power-transformer-for-utility-substation-applications","status":"publish","type":"product","link":"https:\/\/yawei-powertransformer.com\/it\/manufacturer\/345-kv-63-400-mva-high-voltage-power-transformer-for-utility-substation-applications\/","title":{"rendered":"Trasformatore di potenza ad alta tensione 345 kV 63-400 MVA per applicazioni di utilit\u00e0 e sottostazione"},"content":{"rendered":"<p data-start=\"540\" data-end=\"1020\">Manufactured by Yawei Transformer, the 345 kV <a href=\"https:\/\/yawei-powertransformer.com\/Wholesale\/hv-power-transformers\/\">High Voltage Power Transformer<\/a> (63\u2013400 MVA) is a utility-grade, oil-immersed power transformer designed for high-voltage transmission and substation applications. Engineered to operate reliably under extreme electrical, thermal, and environmental conditions, this transformer plays a critical role in modern power grids, including utility substations, transmission substations, and large-scale infrastructure projects.<\/p>\n<p data-start=\"1022\" data-end=\"1450\">With a strong focus on grid reliability, operational safety, and long service life, Yawei Transformer delivers high voltage power transformers that comply with ANSI, IEEE, and IEC standards, making them suitable for North American, European, and global utility markets. Our 345 kV transformer platform is designed to support both new transmission projects and grid modernization or capacity upgrade programs.<\/p>\n<h2 data-start=\"1022\" data-end=\"1450\">345 kV High Voltage Power Transformer Technical Specifications<\/h2>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr style=\"height: 25.00pt;\">\n<th class=\"et2\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Parameter<\/th>\n<th class=\"et2\" style=\"width: 66.7961%;\" width=\"440\">Specification<\/th>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Rated Voltage<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Up to 345 kV (design capability up to 500 kV)<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Rated Capacity<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">63\u2013400 MVA (full product range: 15\u20131200 MVA)<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Transformer Type<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">High Voltage Power Transformer<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Phase<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Three-phase (single-phase available on request)<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Cooling Method<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">ONAN \/ ONAF \/ OFAF (customizable)<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Insulation System<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Oil-immersed, full insulation design<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Winding Configuration<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Delta\/Wye, Wye\/Wye, or custom vector groups<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Frequency<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">50 Hz \/ 60 Hz<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Tap Changer<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Off-circuit tap changer or OLTC<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Standards<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">ANSI \/ IEEE \/ IEC<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Installation<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Outdoor, utility &amp; transmission substations<\/td>\n<\/tr>\n<tr style=\"height: 25.00pt;\">\n<td class=\"et3\" style=\"height: 25pt; width: 33.0097%;\" width=\"199\" height=\"33\">Supply Mode<\/td>\n<td class=\"et3\" style=\"width: 66.7961%;\" width=\"440\">Factory direct, OEM \/ ODM<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"row\"  id=\"row-278940032\">\n\n\t<div id=\"col-2001339179\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_21071645\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-High-Voltage-Power-Transformer-63\u2013400-MVA-for-Utility-and-Substation-Use.webp\" class=\"attachment-large size-large\" alt=\"345 kV high voltage power transformer 63\u2013400 MVA for utility and substation use, oil-immersed power transformer manufactured by Yawei Transformer, supporting custom voltage ratings up to 500 kV and capacities from 15 to 1200 MVA\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-High-Voltage-Power-Transformer-63\u2013400-MVA-for-Utility-and-Substation-Use.webp 900w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-High-Voltage-Power-Transformer-63\u2013400-MVA-for-Utility-and-Substation-Use-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-High-Voltage-Power-Transformer-63\u2013400-MVA-for-Utility-and-Substation-Use-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-High-Voltage-Power-Transformer-63\u2013400-MVA-for-Utility-and-Substation-Use-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-High-Voltage-Power-Transformer-63\u2013400-MVA-for-Utility-and-Substation-Use-600x400.webp 600w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_21071645 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-533124818\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_685020934\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-IEEE-Standard-High-Voltage-Power-Transformer-for-Utility-Applications.webp\" class=\"attachment-large size-large\" alt=\"345 kV 63\u2013400 MVA IEEE standard high voltage power transformer for utility applications, oil-immersed design manufactured by Yawei Transformer, supporting custom voltage ratings up to 500 kV and capacities from 15 to 1200 MVA\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-IEEE-Standard-High-Voltage-Power-Transformer-for-Utility-Applications.webp 900w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-IEEE-Standard-High-Voltage-Power-Transformer-for-Utility-Applications-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-IEEE-Standard-High-Voltage-Power-Transformer-for-Utility-Applications-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-IEEE-Standard-High-Voltage-Power-Transformer-for-Utility-Applications-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-IEEE-Standard-High-Voltage-Power-Transformer-for-Utility-Applications-600x400.webp 600w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_685020934 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1026845493\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1825077844\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-Manufacturer-for-Utility-Substation-Projects.webp\" class=\"attachment-large size-large\" alt=\"345 kV 63\u2013400 MVA high voltage power transformer manufacturer for utility and substation projects, oil-immersed power transformer factory by Yawei Transformer, supporting custom voltage ratings up to 500 kV and capacities from 15 to 1200 MVA\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-Manufacturer-for-Utility-Substation-Projects.webp 900w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-Manufacturer-for-Utility-Substation-Projects-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-Manufacturer-for-Utility-Substation-Projects-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-Manufacturer-for-Utility-Substation-Projects-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-Manufacturer-for-Utility-Substation-Projects-600x400.webp 600w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1825077844 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<h2 data-start=\"2205\" data-end=\"2261\">Designed for Modern Utility and Transmission Networks<\/h2>\n<p data-start=\"2263\" data-end=\"2696\">The 345 kV high voltage power transformer is specifically developed to meet the increasing demands of high-capacity, long-distance power transmission. Utilities worldwide are facing higher load densities, renewable energy integration, and stricter efficiency requirements. Yawei Transformer addresses these challenges through optimized electromagnetic design, advanced insulation structures, and strict manufacturing control.<\/p>\n<p data-start=\"2698\" data-end=\"2727\">Typical applications include:<\/p>\n<ul data-start=\"2728\" data-end=\"2964\">\n<li data-start=\"2728\" data-end=\"2764\">\n<p data-start=\"2730\" data-end=\"2764\">Utility transmission substations<\/p>\n<\/li>\n<li data-start=\"2765\" data-end=\"2819\">\n<p data-start=\"2767\" data-end=\"2819\">Interconnection substations between regional grids<\/p>\n<\/li>\n<li data-start=\"2820\" data-end=\"2869\">\n<p data-start=\"2822\" data-end=\"2869\">High voltage nodes in national power networks<\/p>\n<\/li>\n<li data-start=\"2870\" data-end=\"2920\">\n<p data-start=\"2872\" data-end=\"2920\">Industrial substations with large power demand<\/p>\n<\/li>\n<li data-start=\"2921\" data-end=\"2964\">\n<p data-start=\"2923\" data-end=\"2964\">Renewable energy transmission corridors<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2966\" data-end=\"2969\" \/>\n<h2 data-start=\"2971\" data-end=\"3038\">Advanced Full Insulation System and Low Partial Discharge Design<\/h2>\n<p data-start=\"3040\" data-end=\"3360\">A key technical advantage of Yawei Transformer\u2019s 345 kV series is its full insulation system design. By combining advanced electrical field simulation, optimized insulation structure layout, and precision manufacturing, our transformers achieve low partial discharge levels and high impulse withstand capability.<\/p>\n<p data-start=\"3362\" data-end=\"3394\">Key insulation features include:<\/p>\n<ul data-start=\"3395\" data-end=\"3574\">\n<li data-start=\"3395\" data-end=\"3442\">\n<p data-start=\"3397\" data-end=\"3442\">Optimized oil-paper insulation coordination<\/p>\n<\/li>\n<li data-start=\"3443\" data-end=\"3485\">\n<p data-start=\"3445\" data-end=\"3485\">Precision-formed pressboard components<\/p>\n<\/li>\n<li data-start=\"3486\" data-end=\"3525\">\n<p data-start=\"3488\" data-end=\"3525\">Uniform electric field distribution<\/p>\n<\/li>\n<li data-start=\"3526\" data-end=\"3574\">\n<p data-start=\"3528\" data-end=\"3574\">Reduced dielectric stress at critical points<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3576\" data-end=\"3774\">This design significantly enhances long-term operational stability and reduces the risk of insulation aging, making the transformer ideal for ultra-high voltage and EHV transmission systems.<\/p>\n<hr data-start=\"3776\" data-end=\"3779\" \/>\n<h2 data-start=\"3781\" data-end=\"3831\">Manufacturing Excellence and Factory Capability<\/h2>\n<p data-start=\"3833\" data-end=\"4166\">As a professional high voltage power transformer manufacturer, Yawei Transformer operates advanced production facilities capable of manufacturing transformers up to 500 kV and 1200 MVA. From core stacking and winding to final assembly and testing, every stage is strictly controlled to ensure product consistency and quality.<\/p>\n<p data-start=\"4168\" data-end=\"4201\">Our factory capabilities include:<\/p>\n<ul data-start=\"4202\" data-end=\"4406\">\n<li data-start=\"4202\" data-end=\"4252\">\n<p data-start=\"4204\" data-end=\"4252\">Large-capacity core cutting and stacking lines<\/p>\n<\/li>\n<li data-start=\"4253\" data-end=\"4307\">\n<p data-start=\"4255\" data-end=\"4307\">Precision winding and insulation forming workshops<\/p>\n<\/li>\n<li data-start=\"4308\" data-end=\"4349\">\n<p data-start=\"4310\" data-end=\"4349\">Vacuum drying and oil filling systems<\/p>\n<\/li>\n<li data-start=\"4350\" data-end=\"4406\">\n<p data-start=\"4352\" data-end=\"4406\">Full routine, type, and special testing laboratories<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4408\" data-end=\"4552\">Factory-direct manufacturing allows us to provide competitive wholesale pricing, stable delivery schedules, and full technical traceability.<\/p>\n<hr data-start=\"4554\" data-end=\"4557\" \/>\n<h2 data-start=\"4559\" data-end=\"4601\">Custom Engineering for Global Standards<\/h2>\n<p data-start=\"4603\" data-end=\"4733\">Each 345 kV power transformer can be customized to meet specific project and utility requirements. Yawei Transformer supports:<\/p>\n<ul data-start=\"4734\" data-end=\"4913\">\n<li data-start=\"4734\" data-end=\"4773\">\n<p data-start=\"4736\" data-end=\"4773\">ANSI \/ IEEE or IEC design standards<\/p>\n<\/li>\n<li data-start=\"4774\" data-end=\"4817\">\n<p data-start=\"4776\" data-end=\"4817\">Customized voltage ratios and impedance<\/p>\n<\/li>\n<li data-start=\"4818\" data-end=\"4863\">\n<p data-start=\"4820\" data-end=\"4863\">Special loss and noise level requirements<\/p>\n<\/li>\n<li data-start=\"4864\" data-end=\"4913\">\n<p data-start=\"4866\" data-end=\"4913\">Climatic adaptations for extreme environments<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4915\" data-end=\"5056\">This flexibility enables us to serve U.S. utilities, European grid operators, EPC contractors, and international infrastructure projects.<\/p>\n<hr data-start=\"5058\" data-end=\"5061\" \/>\n<h2 data-start=\"5063\" data-end=\"5169\">Landmark Case: China\u2019s First 250 MVA \/ 345 kV Fully Insulated Transformer Exported to the United States<\/h2>\n<p data-start=\"5171\" data-end=\"5381\">Yawei Transformer successfully developed China\u2019s first fully insulated ultra-high voltage, large-capacity transformer rated at 250 MVA \/ 345 kV, marking a major milestone in domestic transformer technology.<\/p>\n<p data-start=\"5383\" data-end=\"5420\">This project simultaneously achieved:<\/p>\n<ul data-start=\"5421\" data-end=\"5542\">\n<li data-start=\"5421\" data-end=\"5453\">\n<p data-start=\"5423\" data-end=\"5453\"><strong data-start=\"5423\" data-end=\"5451\">Large capacity (250 MVA)<\/strong><\/p>\n<\/li>\n<li data-start=\"5454\" data-end=\"5495\">\n<p data-start=\"5456\" data-end=\"5495\"><strong data-start=\"5456\" data-end=\"5493\">Ultra-high voltage level (345 kV)<\/strong><\/p>\n<\/li>\n<li data-start=\"5496\" data-end=\"5542\">\n<p data-start=\"5498\" data-end=\"5542\"><strong data-start=\"5498\" data-end=\"5542\">Fully insulated transformer architecture<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5544\" data-end=\"5849\">The project covered the entire lifecycle, including design development, batch-production process engineering, and precision forming of transformer insulation structures. Yawei Transformer successfully mastered a complete proprietary technology system with independent intellectual property rights.<\/p>\n<p data-start=\"5851\" data-end=\"6153\">This achievement filled the domestic gap in 345 kV fully insulated, large-capacity, low-loss, low partial discharge intelligent transformers for export, and the unit was successfully transported and delivered to the United States, meeting stringent utility, testing, and logistics requirements.<\/p>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_864034010\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-for-Transmission-Utility-Substations.webp\" class=\"attachment-large size-large\" alt=\"345 kV 63\u2013400 MVA high voltage power transformer for transmission and utility substations, oil-immersed, manufactured by Yawei Transformer, supporting custom voltage ratings up to 500 kV and capacities from 15 to 1200 MVA\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-for-Transmission-Utility-Substations.webp 900w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-for-Transmission-Utility-Substations-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-for-Transmission-Utility-Substations-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-for-Transmission-Utility-Substations-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/01\/345-kV-63\u2013400-MVA-High-Voltage-Power-Transformer-for-Transmission-Utility-Substations-600x400.webp 600w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_864034010 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h2 data-start=\"6160\" data-end=\"6213\">International Project Experience and Global Supply<\/h2>\n<p data-start=\"6215\" data-end=\"6358\">Beyond this landmark project, Yawei Transformer has supplied <strong data-start=\"6276\" data-end=\"6311\">high voltage power transformers<\/strong> to multiple international markets, supporting:<\/p>\n<ul data-start=\"6359\" data-end=\"6527\">\n<li data-start=\"6359\" data-end=\"6397\">\n<p data-start=\"6361\" data-end=\"6397\">North American utility substations<\/p>\n<\/li>\n<li data-start=\"6398\" data-end=\"6437\">\n<p data-start=\"6400\" data-end=\"6437\">European transmission grid upgrades<\/p>\n<\/li>\n<li data-start=\"6438\" data-end=\"6482\">\n<p data-start=\"6440\" data-end=\"6482\">Southeast Asian infrastructure expansion<\/p>\n<\/li>\n<li data-start=\"6483\" data-end=\"6527\">\n<p data-start=\"6485\" data-end=\"6527\">Middle Eastern industrial power projects<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"6529\" data-end=\"6653\">Our experience in global logistics, compliance documentation, and on-site coordination ensures smooth project execution.<\/p>\n<hr data-start=\"6655\" data-end=\"6658\" \/>\n<h2 data-start=\"6660\" data-end=\"6715\">Supporting the Full Range: 15\u20131200 MVA, Up to 500 kV<\/h2>\n<p data-start=\"6717\" data-end=\"6799\">Yawei Transformer offers a complete portfolio of <strong data-start=\"6766\" data-end=\"6788\">power transformers<\/strong>, covering:<\/p>\n<ul data-start=\"6800\" data-end=\"6937\">\n<li data-start=\"6800\" data-end=\"6835\">\n<p data-start=\"6802\" data-end=\"6835\">Voltage levels up to <strong data-start=\"6823\" data-end=\"6833\">500 kV<\/strong><\/p>\n<\/li>\n<li data-start=\"6836\" data-end=\"6882\">\n<p data-start=\"6838\" data-end=\"6882\">Capacity range from <strong data-start=\"6858\" data-end=\"6880\">15 MVA to 1200 MVA<\/strong><\/p>\n<\/li>\n<li data-start=\"6883\" data-end=\"6937\">\n<p data-start=\"6885\" data-end=\"6937\">Utility, transmission, and industrial applications<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"6939\" data-end=\"7058\">This allows customers to source <strong data-start=\"6971\" data-end=\"7027\">single-unit solutions or complete transformer fleets<\/strong> from one trusted manufacturer.<\/p>\n<hr data-start=\"7060\" data-end=\"7063\" \/>\n<h2 data-start=\"7065\" data-end=\"7097\">Quality Assurance and Testing<\/h2>\n<p data-start=\"7099\" data-end=\"7167\">Every 345 kV transformer undergoes comprehensive testing, including:<\/p>\n<ul data-start=\"7168\" data-end=\"7232\">\n<li data-start=\"7168\" data-end=\"7185\">\n<p data-start=\"7170\" data-end=\"7185\">Routine tests<\/p>\n<\/li>\n<li data-start=\"7186\" data-end=\"7200\">\n<p data-start=\"7188\" data-end=\"7200\">Type tests<\/p>\n<\/li>\n<li data-start=\"7201\" data-end=\"7232\">\n<p data-start=\"7203\" data-end=\"7232\">Special tests (as required)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"7234\" data-end=\"7325\">This ensures compliance with international standards and long-term operational reliability.<\/p>\n<hr data-start=\"7327\" data-end=\"7330\" \/>\n<h2 data-start=\"7332\" data-end=\"7363\">Why Choose Yawei Transformer<\/h2>\n<ul data-start=\"7365\" data-end=\"7619\">\n<li data-start=\"7365\" data-end=\"7421\">\n<p data-start=\"7367\" data-end=\"7421\">Proven experience in <strong data-start=\"7388\" data-end=\"7419\">345 kV and EHV transformers<\/strong><\/p>\n<\/li>\n<li data-start=\"7422\" data-end=\"7488\">\n<p data-start=\"7424\" data-end=\"7488\">Independent intellectual property and proprietary technologies<\/p>\n<\/li>\n<li data-start=\"7489\" data-end=\"7536\">\n<p data-start=\"7491\" data-end=\"7536\">Factory-direct supply and wholesale pricing<\/p>\n<\/li>\n<li data-start=\"7537\" data-end=\"7582\">\n<p data-start=\"7539\" data-end=\"7582\">Strong U.S. and global project references<\/p>\n<\/li>\n<li data-start=\"7583\" data-end=\"7619\">\n<p data-start=\"7585\" data-end=\"7619\">Full lifecycle technical support<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"7621\" data-end=\"7624\" \/>\n<h2 data-start=\"7626\" data-end=\"7659\">Partner with Yawei Transformer<\/h2>\n<p data-start=\"7661\" data-end=\"7861\">Whether you are a utility company, EPC contractor, or power infrastructure developer, Yawei Transformer provides reliable, efficient, and future-ready high voltage power transformer solutions.<\/p>\n<p data-start=\"7863\" data-end=\"7998\">From 63\u2013400 MVA 345 kV transformers to custom 500 kV EHV systems, we help power grids operate safely and efficiently worldwide.<\/p>\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f280-o1\" lang=\"en-US\" dir=\"ltr\" 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class=\"row large-columns-3 medium-columns-1 small-columns-1 slider row-slider slider-nav-reveal slider-nav-push\"  data-flickity-options='{\"imagesLoaded\": true, \"groupCells\": \"100%\", \"dragThreshold\" : 5, \"cellAlign\": \"left\",\"wrapAround\": true,\"prevNextButtons\": true,\"percentPosition\": true,\"pageDots\": false, \"rightToLeft\": false, \"autoPlay\" : false}' >\n\n  <div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/2026-top-10-transformer-manufacturers-in-china\/\" class=\"plain\" aria-label=\"2026 Top 10 Transformer Manufacturers in China\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/2026-Top-10-Transformer-Manufacturers-in-China-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"2026 top 10 transformer manufacturers in China including TBEA Siemens Energy Hitachi Energy Schneider Electric Yawei Transformer and CHINT global suppliers\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/2026-Top-10-Transformer-Manufacturers-in-China-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/2026-Top-10-Transformer-Manufacturers-in-China-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/2026-Top-10-Transformer-Manufacturers-in-China-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/2026-Top-10-Transformer-Manufacturers-in-China-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/2026-Top-10-Transformer-Manufacturers-in-China.webp 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/2026-top-10-transformer-manufacturers-in-china\/\" class=\"plain\">2026 Top 10 Transformer Manufacturers in China<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tDetailed Overview of China\u2019s Top 10 Transformer Suppliers 2026 Amid the in-depth penetration of the [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">28<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/transformer-impedance-power-factor-short-circuit-performance\/\" class=\"plain\" aria-label=\"Transformer Impedance, Power Factor &#038; Short-Circuit Performance\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"A modern power transformer in a substation illustrating impedance characteristics, power factor optimization, and short-circuit performance in electrical grid and industrial energy systems.\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems-1024x683.webp 1024w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Transformer-Impedance-Power-Factor-Optimization-Short-Circuit-Performance-Analysis-for-Modern-Power-Grid-Stability-and-Industrial-Energy-Systems.webp 1536w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/transformer-impedance-power-factor-short-circuit-performance\/\" class=\"plain\">Transformer Impedance, Power Factor &#038; Short-Circuit Performance<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tA Modern Engineering Perspective for Grid &amp; Industrial Applications Power transformers are not only energy [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">23<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/power-transformers-for-data-centers-reliable-efficient-solutions-for-north-america\/\" class=\"plain\" aria-label=\"Power Transformers for Data Centers: Reliable, Efficient Solutions for North America\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Power-Transformers-for-Data-Centers-Reliable-Efficient-Solutions-for-North-America-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"Power transformers designed for data centers in North America, providing reliable and efficient electrical power distribution for critical infrastructure.\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Power-Transformers-for-Data-Centers-Reliable-Efficient-Solutions-for-North-America-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Power-Transformers-for-Data-Centers-Reliable-Efficient-Solutions-for-North-America-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Power-Transformers-for-Data-Centers-Reliable-Efficient-Solutions-for-North-America-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Power-Transformers-for-Data-Centers-Reliable-Efficient-Solutions-for-North-America-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Power-Transformers-for-Data-Centers-Reliable-Efficient-Solutions-for-North-America.webp 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/power-transformers-for-data-centers-reliable-efficient-solutions-for-north-america\/\" class=\"plain\">Power Transformers for Data Centers: Reliable, Efficient Solutions for North America<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tIntroduction The rapid growth of cloud computing, artificial intelligence, and hyperscale digital infrastructure is driving [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">17<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/international-client-visit-to-yawei-transformer-factory-in-depth-inspection-of-a-110kv-33kv-40mva-power-transformer\/\" class=\"plain\" aria-label=\"International Client Visit to Yawei Transformer Factory: In-Depth Inspection of a 110kV\/33kV 40MVA Power Transformer\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/International-Client-Visit-to-Yawei-Transformer-Factory-In-Depth-Inspection-of-a-110kV33kV-40MVA-Power-Transformer-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"International client visiting Yawei transformer factory for in-depth inspection of a 110kV\/33kV 40MVA power transformer during manufacturing and testing\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/International-Client-Visit-to-Yawei-Transformer-Factory-In-Depth-Inspection-of-a-110kV33kV-40MVA-Power-Transformer-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/International-Client-Visit-to-Yawei-Transformer-Factory-In-Depth-Inspection-of-a-110kV33kV-40MVA-Power-Transformer-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/International-Client-Visit-to-Yawei-Transformer-Factory-In-Depth-Inspection-of-a-110kV33kV-40MVA-Power-Transformer-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/International-Client-Visit-to-Yawei-Transformer-Factory-In-Depth-Inspection-of-a-110kV33kV-40MVA-Power-Transformer-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/International-Client-Visit-to-Yawei-Transformer-Factory-In-Depth-Inspection-of-a-110kV33kV-40MVA-Power-Transformer.webp 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/international-client-visit-to-yawei-transformer-factory-in-depth-inspection-of-a-110kv-33kv-40mva-power-transformer\/\" class=\"plain\">International Client Visit to Yawei Transformer Factory: In-Depth Inspection of a 110kV\/33kV 40MVA Power Transformer<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tIntroduction: Building Trust Through Transparency In the global power transmission and distribution industry, trust is [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">16<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/250mva-345kv-power-transformer-for-north-america-ready-for-testing-and-shipment\/\" class=\"plain\" aria-label=\"250MVA 345kV Power Transformer for North America: Ready for Testing and Shipment\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/250MVA-345kV-Power-Transformer-for-North-America-Ready-for-Testing-and-Shipment-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"250MVA 345kV power transformer for North America ready for testing and shipment, IEEE compliant high voltage substation transformer manufactured in China\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/250MVA-345kV-Power-Transformer-for-North-America-Ready-for-Testing-and-Shipment-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/250MVA-345kV-Power-Transformer-for-North-America-Ready-for-Testing-and-Shipment-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/250MVA-345kV-Power-Transformer-for-North-America-Ready-for-Testing-and-Shipment-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/250MVA-345kV-Power-Transformer-for-North-America-Ready-for-Testing-and-Shipment-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/250MVA-345kV-Power-Transformer-for-North-America-Ready-for-Testing-and-Shipment.webp 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/250mva-345kv-power-transformer-for-north-america-ready-for-testing-and-shipment\/\" class=\"plain\">250MVA 345kV Power Transformer for North America: Ready for Testing and Shipment<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tPowering Large-Scale Grids Across North America As North America continues to upgrade its transmission infrastructure, [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">14<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/china-power-transformer-manufacturer-expands-yawei-chengdu-factory-update-2026\/\" class=\"plain\" aria-label=\"China Power Transformer Manufacturer Expands Yawei Chengdu Factory Update 2026\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"210\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-Chengdu-Factory-Visit-April-9-2026-Expanding-in-Southwest-China-Serving-Global-Markets-300x210.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"Yawei Transformer Chengdu factory visit on April 9, 2026 showing construction progress and expansion for global power transformer manufacturing\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-Chengdu-Factory-Visit-April-9-2026-Expanding-in-Southwest-China-Serving-Global-Markets-300x210.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-Chengdu-Factory-Visit-April-9-2026-Expanding-in-Southwest-China-Serving-Global-Markets-768x538.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-Chengdu-Factory-Visit-April-9-2026-Expanding-in-Southwest-China-Serving-Global-Markets-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-Chengdu-Factory-Visit-April-9-2026-Expanding-in-Southwest-China-Serving-Global-Markets-600x420.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-Chengdu-Factory-Visit-April-9-2026-Expanding-in-Southwest-China-Serving-Global-Markets.webp 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/china-power-transformer-manufacturer-expands-yawei-chengdu-factory-update-2026\/\" class=\"plain\">China Power Transformer Manufacturer Expands Yawei Chengdu Factory Update 2026<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tA Strategic Milestone in Yawei Transformer\u2019s Global Expansion On April 9, 2026, a delegation of [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">10<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/yawei-transformer-at-canton-fair-2026-powering-global-markets-with-a-strong-north-america-focus\/\" class=\"plain\" aria-label=\"Yawei Transformer at Canton Fair 2026: Powering Global Markets with a Strong North America Focus\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-at-Canton-Fair-2026-Powering-Global-Markets-with-a-Strong-North-America-Focus-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"Yawei Transformer at the 139th Canton Fair 2026 showcasing global power transformer solutions with a strong focus on the USA and Canada markets\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-at-Canton-Fair-2026-Powering-Global-Markets-with-a-Strong-North-America-Focus-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-at-Canton-Fair-2026-Powering-Global-Markets-with-a-Strong-North-America-Focus-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-at-Canton-Fair-2026-Powering-Global-Markets-with-a-Strong-North-America-Focus-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-at-Canton-Fair-2026-Powering-Global-Markets-with-a-Strong-North-America-Focus-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/Yawei-Transformer-at-Canton-Fair-2026-Powering-Global-Markets-with-a-Strong-North-America-Focus.webp 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/yawei-transformer-at-canton-fair-2026-powering-global-markets-with-a-strong-north-america-focus\/\" class=\"plain\">Yawei Transformer at Canton Fair 2026: Powering Global Markets with a Strong North America Focus<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tAs global energy demand continues to expand, the need for reliable and efficient power infrastructure [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">07<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n            \t\t\t\t\t<div class=\"box-image\" >\n  \t\t\t\t\t\t<div class=\"image-cover\" style=\"padding-top:56.25%;\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/how-darshion-powers-its-factory-expansion-with-yawei-transformer\/\" class=\"plain\" aria-label=\"How Darshion Powers Its Factory Expansion with Yawei Transformer\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/How-Darshion-Powers-Its-Factory-Expansion-with-Yawei-Transformer-300x200.webp\" class=\"attachment-medium size-medium wp-post-image\" alt=\"Darshion Mouse Factory installing a 1000 kVA transformer from Yawei Transformer for factory expansion and stable power supply\" srcset=\"https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/How-Darshion-Powers-Its-Factory-Expansion-with-Yawei-Transformer-300x200.webp 300w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/How-Darshion-Powers-Its-Factory-Expansion-with-Yawei-Transformer-768x512.webp 768w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/How-Darshion-Powers-Its-Factory-Expansion-with-Yawei-Transformer-18x12.webp 18w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/How-Darshion-Powers-Its-Factory-Expansion-with-Yawei-Transformer-600x400.webp 600w, https:\/\/yawei-powertransformer.com\/wp-content\/uploads\/2026\/04\/How-Darshion-Powers-Its-Factory-Expansion-with-Yawei-Transformer.webp 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t<\/a>\n  \t\t\t\t\t\t\t  \t\t\t\t\t\t\t  \t\t\t\t\t\t<\/div>\n  \t\t\t\t\t\t  \t\t\t\t\t<\/div>\n          \t\t\t\t\t<div class=\"box-text text-center\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/yawei-powertransformer.com\/it\/how-darshion-powers-its-factory-expansion-with-yawei-transformer\/\" class=\"plain\">How Darshion Powers Its Factory Expansion with Yawei Transformer<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tIntroduction In today\u2019s competitive manufacturing environment, stable and efficient power infrastructure is critical for sustainable [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"badge absolute top post-date badge-outline\">\n\t\t\t\t\t\t\t<div class=\"badge-inner\">\n\t\t\t\t\t\t\t\t<span class=\"post-date-day\">01<\/span><br>\n\t\t\t\t\t\t\t\t<span class=\"post-date-month is-xsmall\">Apr<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p data-start=\"77\" data-end=\"505\">Prodotto da Yawei Transformer, questo trasformatore di potenza ad alta tensione da 345 kV \u00e8 progettato per sottostazioni e sistemi di trasmissione. Con capacit\u00e0 di progettazione fino a 500 kV e potenza nominale da 63 MVA a 400 MVA - estendibile fino a 1200 MVA - fornisce soluzioni di trasformatori di potenza principali affidabili e personalizzate, conformi agli standard IEC, ANSI e IEEE, per progetti globali di utility ed energia.<\/p>\n<p data-start=\"507\" data-end=\"893\"><strong data-start=\"507\" data-end=\"525\">Tensione nominale:<\/strong> 345 kV (capacit\u00e0 di progettazione fino a 500 kV)<br data-start=\"570\" data-end=\"573\" \/><strong data-start=\"573\" data-end=\"590\">Potenza nominale:<\/strong> 63-400 MVA (gamma completa disponibile da 15-1200 MVA)<br data-start=\"641\" data-end=\"644\" \/><strong data-start=\"644\" data-end=\"665\">Tipo di trasformatore:<\/strong> Trasformatore di potenza trifase ad alta tensione in bagno d'olio<br data-start=\"722\" data-end=\"725\" \/><strong data-start=\"725\" data-end=\"751\">Configurazione dell'avvolgimento:<\/strong> Disponibile con doppio o triplo avvolgimento<br data-start=\"800\" data-end=\"803\" \/><strong data-start=\"803\" data-end=\"828\">Opzioni del gruppo vettoriale:<\/strong> Wye con messa a terra a triangolo (standard), Wye-Wye, Delta-Delta, Wye-Delta<\/p>\n<p data-start=\"507\" data-end=\"893\"><strong data-start=\"895\" data-end=\"918\">Regolazione della tensione:<\/strong><\/p>\n<ul data-start=\"921\" data-end=\"979\">\n<li data-start=\"921\" data-end=\"948\">\n<p data-start=\"923\" data-end=\"948\">Commutatore fuori circuito<\/p>\n<\/li>\n<li data-start=\"949\" data-end=\"979\">\n<p data-start=\"951\" data-end=\"979\">Commutatore sotto carico (OLTC)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"981\" data-end=\"1314\"><strong data-start=\"981\" data-end=\"1000\">Metodo di raffreddamento:<\/strong> ONAN \/ ONAF \/ OFAF \/ OFWF<br data-start=\"1026\" data-end=\"1029\" \/><strong data-start=\"1029\" data-end=\"1051\">Sistema di isolamento:<\/strong> Isolamento in bagno d'olio con olio minerale o fluidi alternativi approvati.<br data-start=\"1124\" data-end=\"1127\" \/><strong data-start=\"1127\" data-end=\"1152\">Standard applicabili:<\/strong> IEC \/ ANSI \/ IEEE<br data-start=\"1170\" data-end=\"1173\" \/><strong data-start=\"1173\" data-end=\"1204\">Installazione e applicazione:<\/strong> Installazione all'aperto per sottostazioni di utenza, sottostazioni di trasmissione e progetti di rete elettrica su larga scala<\/p>","protected":false},"featured_media":1895,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[15,43],"product_tag":[139,142,140,143,146,147,141,144,148,145],"class_list":{"0":"post-1893","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-paper-box-for-food","7":"product_cat-hv-power-transformers","8":"product_tag-345-kv-high-voltage-power-transformer","9":"product_tag-345-kv-transmission-class-transformer","10":"product_tag-345-kv-utility-substation-transformer","11":"product_tag-63-400-mva-power-transformer","12":"product_tag-ansi-ieee-iec-power-transformer","13":"product_tag-custom-high-voltage-transformer-supplier","14":"product_tag-high-voltage-power-transformer-manufacturer","15":"product_tag-oil-immersed-high-voltage-transformer","16":"product_tag-power-transformer-factory-direct","17":"product_tag-utility-substation-power-transformer","19":"first","20":"instock","21":"shipping-taxable","22":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>345 kV 63\u2013400 MVA High Voltage Power Transformer for Utility &amp; Substation | Yawei Transformer<\/title>\n<meta name=\"description\" content=\"345 kV 63\u2013400 MVA high voltage power transformer for utility and substation applications. 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