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Why Are Transformer Cores Made of Thin Silicon Steel Laminations? If you work with transformers or reactors, you\u2019ve likely noticed a key design feature: the transformer core is not made from a solid block of metal. Instead, it is assembled from many thin, stacked layers known as silicon steel laminations or electrical steel laminations. This design is a classic, time-tested solution in electrical engineering, backed by deep principles of electromagnetics and advanced materials science. In this article, we\u2019ll explain in simple terms why this laminated structure is essential for efficient transformer operation. 1. Core Losses: Understanding Eddy Current and Hysteresis Losses Total transformer core loss consists mainly of two types: […]<\/p>\n","protected":false},"author":1,"featured_media":7314,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[48],"tags":[],"class_list":["post-7313","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq"],"yoast_head":"\n
Why Are Transformer Cores Made of Thin Silicon Steel Laminations? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD Why Transformer Cores Use Thin Silicon Steel Laminations: The Thickness-Squared Law<\/title>\n<meta name=\"description\" content=\"Eddy current loss in a transformer core is proportional to the square of lamination thickness. Slicing a 35 mm solid core into 0.35 mm laminations reduces eddy current loss by orders of magnitude; silicon addition further cuts eddy current loss from the 0.34\u20130.70 range (ordinary annealed steel) to 0.12\u20130.18. Modern power transformer laminations are typically 0.3 mm thick with ~4 \u03bcm coatings. This guide explains the physics behind the thin-lamination design.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.lstransformer.com\/ja\/why-are-transformer-cores-made-of-thin-silicon-steel-laminations\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Are Transformer Cores Made of Thin Silicon Steel Laminations? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD Why Transformer Cores Use Thin Silicon Steel Laminations: The Thickness-Squared Law\" \/>\n<meta property=\"og:description\" content=\"Eddy current loss in a transformer core is proportional to the square of lamination thickness. 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