{"id":37768,"date":"2026-07-24T17:04:50","date_gmt":"2026-07-24T17:04:50","guid":{"rendered":"https:\/\/dinghongtransformer.com\/?p=37768"},"modified":"2026-08-11T09:16:18","modified_gmt":"2026-08-11T09:16:18","slug":"copper-vs-aluminum-transformer-windings-which-performs-better","status":"publish","type":"post","link":"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/","title":{"rendered":"Copper vs. Aluminum Transformer Windings: Which Performs Better?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">When selecting a transformer, one of the most important decisions is the choice of winding material. Copper and aluminum are the two most commonly used conductor materials in transformer windings, and each offers distinct advantages depending on the application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While both materials are capable of delivering reliable electrical performance, differences in conductivity, mechanical strength, efficiency, cost, and maintenance requirements can significantly impact the transformer&#8217;s long-term performance and total cost of ownership.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this guide, we&#8217;ll compare copper and aluminum transformer windings to help engineers, procurement managers, and project developers determine which option best suits their commercial or industrial power distribution needs.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#What_Are_Transformer_Windings\" >What Are Transformer Windings?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Copper_Transformer_Windings\" >Copper Transformer Windings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Limitations_of_Copper\" >Limitations of Copper<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Aluminum_Transformer_Windings\" >Aluminum Transformer Windings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Limitations_of_Aluminum\" >Limitations of Aluminum<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Which_Performs_Better\" >Which Performs Better?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Aluminum_windings_are_commonly_selected_for\" >Aluminum windings are commonly selected for:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Factors_to_Consider_Before_Choosing\" >Factors to Consider Before Choosing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/#Choosing_the_Right_Transformer_Manufacturer\" >Choosing the Right Transformer Manufacturer<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_Transformer_Windings\"><\/span>What Are Transformer Windings?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Transformer windings are insulated coils of conductive material wrapped around the transformer&#8217;s core. Their primary function is to transfer electrical energy between circuits through electromagnetic induction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The quality of the winding material directly affects several key performance factors, including:<\/p>\n\n\n\n<ul class=\"wp-block-wd-list wd-list wd-type-unordered wd-style-default wd-e9f3092a\">\n<li class=\"wp-block-wd-list-item wd-cce0b678\"><div class=\"wd-icon\"><\/div><span class=\"wd-list-content\">Electrical efficiency<\/span><\/li>\n\n\n\n<li class=\"wp-block-wd-list-item wd-1620b53f\"><div class=\"wd-icon\"><\/div><span class=\"wd-list-content\">Heat generation<\/span><\/li>\n\n\n\n<li class=\"wp-block-wd-list-item wd-657c977e\"><div class=\"wd-icon\"><\/div><span class=\"wd-list-content\">Voltage regulation<\/span><\/li>\n\n\n\n<li class=\"wp-block-wd-list-item wd-60d0f44d\"><div class=\"wd-icon\"><\/div><span class=\"wd-list-content\">Mechanical durability <\/span><\/li>\n\n\n\n<li class=\"wp-block-wd-list-item wd-6177e966\"><div class=\"wd-icon\"><\/div><span class=\"wd-list-content\">Service life<\/span><\/li>\n\n\n\n<li class=\"wp-block-wd-list-item wd-6b327fda\"><div class=\"wd-icon\"><\/div><span class=\"wd-list-content\">maintenance requirements <\/span><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For this reason, selecting the appropriate winding material is an essential part of transformer design.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Copper_Transformer_Windings\"><\/span>Copper Transformer Windings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Copper has long been considered the industry standard for transformer windings due to its excellent electrical and mechanical properties.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Advantages of Copper Windings<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher Electrical Conductivity<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Copper has significantly higher electrical conductivity than aluminum. This means it carries more current with lower resistance, reducing energy losses and improving transformer efficiency.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Excellent Mechanical Strength<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Copper is stronger and more resistant to mechanical stress. It performs exceptionally well during short circuits, load fluctuations, and transportation, helping maintain winding integrity over many years of operation.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Better Thermal Performance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Copper dissipates heat efficiently, allowing transformers to operate at lower temperatures under heavy loads. Lower operating temperatures generally contribute to a longer service life.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limitations_of_Copper\"><\/span>Limitations of Copper<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Despite its many benefits, copper has a few disadvantages:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher raw material cost<\/li>\n\n\n\n<li>Heavier transformer weight<\/li>\n\n\n\n<li>Greater initial investment<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">However, many organizations find that the improved efficiency and durability justify the higher upfront cost over the transformer&#8217;s operating life.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Aluminum_Transformer_Windings\"><\/span>Aluminum Transformer Windings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum has become an increasingly popular alternative, particularly in applications where reducing equipment costs or weight is a priority.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Advantages of Aluminum Windings<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1:-Lower Material Cost<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum is generally less expensive than copper, making it attractive for projects with tighter budgets.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2:- Lighter Weight<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum weighs approximately one-third as much as copper.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> This can simplify transportation, installation, and structural support requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3:- Cost-Effective for Large Installations<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For certain distribution transformer applications, aluminum windings provide an economical solution while still delivering dependable performance when properly designed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limitations_of_Aluminum\"><\/span>Limitations of Aluminum<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Although aluminum offers cost advantages, it also presents some trade-offs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1:- Lower Electrical Conductivity<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because aluminum has lower conductivity, larger conductor cross-sections are required to achieve the same current-carrying capacity as copper.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2:- Higher Thermal Expansion<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum expands and contracts more with temperature changes, which may increase mechanical stress over time if not properly engineered.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3:- Reduced Mechanical Strength<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compared with copper, aluminum is more susceptible to deformation under mechanical or electrical stress, particularly during fault conditions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_Performs_Better\"><\/span>Which Performs Better?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1200\" height=\"800\" data-src=\"https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-1200x800.png\" alt=\"\" class=\"wp-image-37772 lazyload\" data-srcset=\"https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-1200x800.png 1200w, https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-400x267.png 400w, https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-768x512.png 768w, https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-430x287.png 430w, https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-700x467.png 700w, https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329-150x100.png 150w, https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/369329.png 1536w\" data-sizes=\"(max-width: 1200px) 100vw, 1200px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1200px; --smush-placeholder-aspect-ratio: 1200\/800;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For applications where maximum efficiency, reliability, and long-term durability are essential, copper windings generally outperform aluminum.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Copper is often the preferred choice for:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Industrial manufacturing plants<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Data centers<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Hospitals<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Utility substations<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Renewable energy facilities<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Critical infrastructure<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-High-load commercial buildings<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Aluminum_windings_are_commonly_selected_for\"><\/span>Aluminum windings are commonly selected for:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">-Budget-conscious commercial projects<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Standard distribution systems<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Installations where lower weight is beneficial<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">-Projects with moderate load requirements<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ultimately, proper transformer design has a greater impact on performance than conductor material alone.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factors_to_Consider_Before_Choosing\"><\/span>Factors to Consider Before Choosing<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before selecting copper or aluminum transformer windings, consider the following:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1:- Project Budget<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If minimizing initial investment is the primary objective, aluminum may provide a cost-effective solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2:- Energy Efficiency Goals<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Organizations seeking lower operating costs and improved efficiency over decades of service often benefit from copper windings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3:-Installation Environment<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Harsh industrial environments, heavy-duty applications, and continuous operation typically favor copper because of its superior mechanical and thermal characteristics<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Choosing_the_Right_Transformer_Manufacturer\"><\/span>Choosing the Right Transformer Manufacturer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting the right winding material is only one part of building a reliable power distribution system. Manufacturing quality, engineering expertise, insulation systems, and rigorous testing all play an equally important role in transformer performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At <a href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/\" data-type=\"post\" data-id=\"37752\">Dinghong Transformer<\/a> we manufacture high-quality oil-immersed transformers, dry-type transformers, power transformers, and distribution transformers designed to meet the unique requirements of commercial, industrial, utility, and renewable energy projects.Our engineering team works closely with customers to determine whether copper or aluminum windings are the best fit for their application, considering electrical load, operating environment, efficiency goals, and long-term operating costs. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Every transformer undergoes strict quality control and testing to ensure dependable performance, safety, and compliance with international standards.Whether you require a standard transformer or a customized solution, <a href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/\" data-type=\"post\" data-id=\"37687\">Dinghong Transformer<\/a> is committed to delivering reliable products that support efficient and stable power distribution for projects around the world.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Compare copper and aluminum transformer windings by conductivity, efficiency, durability, weight and cost to choose the right option for your power project.<\/p>","protected":false},"author":2,"featured_media":37771,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-37768","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Copper vs. Aluminum Transformer Windings: Which Performs Better? - Dinghongtransformer<\/title>\n<meta name=\"description\" content=\"Compare copper and aluminum transformer windings by conductivity, efficiency, durability, weight and cost to choose the right option for your power project.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Copper vs. Aluminum Transformer Windings: Which Performs Better? - Dinghongtransformer\" \/>\n<meta property=\"og:description\" content=\"Compare copper and aluminum transformer windings by conductivity, efficiency, durability, weight and cost to choose the right option for your power project.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dinghongtransformer.com\/fr\/blog\/copper-vs-aluminum-transformer-windings-which-performs-better\/\" \/>\n<meta property=\"og:site_name\" content=\"Dinghongtransformer\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-24T17:04:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-11T09:16:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dinghongtransformer.com\/wp-content\/uploads\/2026\/07\/file_00000000427881f4ba260b33944cb118-1200x800.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"kai xin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"kai xin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/dinghongtransformer.com\\\/blog\\\/copper-vs-aluminum-transformer-windings-which-performs-better\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dinghongtransformer.com\\\/blog\\\/copper-vs-aluminum-transformer-windings-which-performs-better\\\/\"},\"author\":{\"name\":\"kai xin\",\"@id\":\"https:\\\/\\\/dinghongtransformer.com\\\/#\\\/schema\\\/person\\\/e63997f0c2f46d2ded1f6754c89005bb\"},\"headline\":\"Copper vs. Aluminum Transformer Windings: Which Performs Better?\",\"datePublished\":\"2026-07-24T17:04:50+00:00\",\"dateModified\":\"2026-08-11T09:16:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dinghongtransformer.com\\\/blog\\\/copper-vs-aluminum-transformer-windings-which-performs-better\\\/\"},\"wordCount\":806,\"image\":{\"@id\":\"https:\\\/\\\/dinghongtransformer.com\\\/blog\\\/copper-vs-aluminum-transformer-windings-which-performs-better\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dinghongtransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/file_00000000427881f4ba260b33944cb118.png\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/dinghongtransformer.com\\\/blog\\\/copper-vs-aluminum-transformer-windings-which-performs-better\\\/\",\"url\":\"https:\\\/\\\/dinghongtransformer.com\\\/blog\\\/copper-vs-aluminum-transformer-windings-which-performs-better\\\/\",\"name\":\"Copper vs. Aluminum Transformer Windings: Which Performs Better? 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