{"id":1291,"date":"2026-07-22T05:33:09","date_gmt":"2026-07-22T05:33:09","guid":{"rendered":"https:\/\/lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/"},"modified":"2026-09-27T15:57:26","modified_gmt":"2026-09-27T15:57:26","slug":"what-protective-devices-does-a-three-phase-transformer-have","status":"publish","type":"post","link":"https:\/\/www.lstransformer.com\/es\/what-protective-devices-does-a-three-phase-transformer-have\/","title":{"rendered":"What protective devices does a three-phase transformer have?"},"content":{"rendered":"<h1 style=\"text-align: left;\">What protective devices does a three-phase transformer have?<\/h1>\n<p><a title=\"Three-phase transformer\" href=\"https:\/\/www.lstransformer.com\/es\/Three-phase-transformer\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" title=\"142\" src=\"https:\/\/manage.lstransformer.com\/upload\/news\/1742206535816425.jpg\" alt=\"indefinido\" width=\"454\" height=\"386\" \/><\/a><\/p>\n<p>Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.<\/p>\n<p>Differential Protection Device: The differential protection device for three-phase transformers is mainly used to protect transformer equipment. The differential protection device for transformers should have differential quick-break protection and compound ratio differential protection with or without second harmonic braking. It can be used in situations with three-side differential current input (three-winding transformers), and has complete and powerful acquisition functions for analog and digital quantities of primary equipment voltage and current. It is equipped with standard RS485 and industrial CAN communication ports, and through reasonable configuration, it realizes protection and measurement and control functions such as three-winding main transformer differential protection, two-winding main transformer differential protection, two-winding auxiliary transformer differential protection, and non-electric quantity protection.<\/p>\n<h2 style=\"font-weight: bold;\">Contacto<\/h2>\n<p>LuShan, est. En 1975, es un Chino fabricante profesional que se especializa en los transformadores de potencia y reactores de m\u00e1s de 50 a\u00f1os. Los productos principales son <a href=\"https:\/\/www.lstransformer.com\/es\/\">transformador monof\u00e1sico, trif\u00e1sico de transformadores de aislamiento, transformador el\u00e9ctrico, transformador de distribuci\u00f3n, el paso hacia abajo y paso transformador de baja tensi\u00f3n del transformador, transformador de alto voltaje, transformador de control, transformador toroidal, R-transformador con n\u00facleo; DC inductores, CA reactores, filtrado de reactor de l\u00ednea y de carga del reactor, estrangulaciones, el filtrado de los reactores y de los intermedios, de alta frecuencia de los productos<\/a>.<\/p>\n<p>Nuestros transformadores de potencia y reactores son ampliamente utilizados en las 10 \u00e1reas de aplicaci\u00f3n: rapid transit, maquinaria de construcci\u00f3n, energ\u00eda renovable, de fabricaci\u00f3n inteligentes, equipos m\u00e9dicos, la mina de carb\u00f3n de la explosi\u00f3n de la prevenci\u00f3n, el sistema de excitaci\u00f3n, de vac\u00edo, de sinterizaci\u00f3n(horno), aire acondicionado central.<\/p>\n<p>Saber m\u00e1s acerca de transformadores de potencia y reactores: <a href=\"https:\/\/www.lstransformer.com\/es\/\">www.lstransformer.com<\/a>.<\/p>\n<p>Si desea obtener soluciones personalizadas para transformadores o reactores, p\u00f3ngase en contacto con nosotros.<br \/>\nWhatsApp\uff1a+86 13787095096<br \/>\nCorreo electr\u00f3nico: marketing@hnlsdz.com<\/p>","protected":false},"excerpt":{"rendered":"<p>What protective devices does a three-phase transformer have? Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4150,"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-1291","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What protective devices does a three-phase transformer have? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD<\/title>\n<meta name=\"description\" content=\"Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.\" \/>\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\/es\/what-protective-devices-does-a-three-phase-transformer-have\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What protective devices does a three-phase transformer have? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\" \/>\n<meta property=\"og:description\" content=\"Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.lstransformer.com\/es\/what-protective-devices-does-a-three-phase-transformer-have\/\" \/>\n<meta property=\"og:site_name\" content=\"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-22T05:33:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-27T15:57:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016426756478.png\" \/>\n\t<meta property=\"og:image:width\" content=\"370\" \/>\n\t<meta property=\"og:image:height\" content=\"276\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"369703005\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"369703005\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/\"},\"author\":{\"name\":\"369703005\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#\\\/schema\\\/person\\\/674089c15f4857c19a997f886816d289\"},\"headline\":\"What protective devices does a three-phase transformer have?\",\"datePublished\":\"2026-07-22T05:33:09+00:00\",\"dateModified\":\"2026-09-27T15:57:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/\"},\"wordCount\":331,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1742016426756478.png\",\"articleSection\":[\"FAQ\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/\",\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/\",\"name\":\"What protective devices does a three-phase transformer have? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1742016426756478.png\",\"datePublished\":\"2026-07-22T05:33:09+00:00\",\"dateModified\":\"2026-09-27T15:57:26+00:00\",\"description\":\"Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1742016426756478.png\",\"contentUrl\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1742016426756478.png\",\"width\":370,\"height\":276},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/what-protective-devices-does-a-three-phase-transformer-have\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/www.lstransformer.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What protective devices does a three-phase transformer have?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#website\",\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/\",\"name\":\"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.lstransformer.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#organization\",\"name\":\"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\",\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-7e09bd7bad9c830e0d75b8487b0d77c3-1.webp\",\"contentUrl\":\"https:\\\/\\\/www.lstransformer.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-7e09bd7bad9c830e0d75b8487b0d77c3-1.webp\",\"width\":760,\"height\":202,\"caption\":\"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\"},\"image\":{\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.lstransformer.com\\\/#\\\/schema\\\/person\\\/674089c15f4857c19a997f886816d289\",\"name\":\"369703005\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/dcaa0e47cd7b6c99ffdd80f5772032ed2d2591b5b8e7b905e5fd87a850954248?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/dcaa0e47cd7b6c99ffdd80f5772032ed2d2591b5b8e7b905e5fd87a850954248?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/dcaa0e47cd7b6c99ffdd80f5772032ed2d2591b5b8e7b905e5fd87a850954248?s=96&d=mm&r=g\",\"caption\":\"369703005\"},\"url\":\"https:\\\/\\\/www.lstransformer.com\\\/es\\\/author\\\/369703005\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What protective devices does a three-phase transformer have? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","description":"Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.lstransformer.com\/es\/what-protective-devices-does-a-three-phase-transformer-have\/","og_locale":"es_ES","og_type":"article","og_title":"What protective devices does a three-phase transformer have? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","og_description":"Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.","og_url":"https:\/\/www.lstransformer.com\/es\/what-protective-devices-does-a-three-phase-transformer-have\/","og_site_name":"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","article_published_time":"2026-07-22T05:33:09+00:00","article_modified_time":"2026-09-27T15:57:26+00:00","og_image":[{"width":370,"height":276,"url":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016426756478.png","type":"image\/png"}],"author":"369703005","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"369703005","Tiempo de lectura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#article","isPartOf":{"@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/"},"author":{"name":"369703005","@id":"https:\/\/www.lstransformer.com\/#\/schema\/person\/674089c15f4857c19a997f886816d289"},"headline":"What protective devices does a three-phase transformer have?","datePublished":"2026-07-22T05:33:09+00:00","dateModified":"2026-09-27T15:57:26+00:00","mainEntityOfPage":{"@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/"},"wordCount":331,"commentCount":0,"publisher":{"@id":"https:\/\/www.lstransformer.com\/#organization"},"image":{"@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#primaryimage"},"thumbnailUrl":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016426756478.png","articleSection":["FAQ"],"inLanguage":"es","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/","url":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/","name":"What protective devices does a three-phase transformer have? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","isPartOf":{"@id":"https:\/\/www.lstransformer.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#primaryimage"},"image":{"@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#primaryimage"},"thumbnailUrl":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016426756478.png","datePublished":"2026-07-22T05:33:09+00:00","dateModified":"2026-09-27T15:57:26+00:00","description":"Microcomputer Protection Device: The microcomputer protection device for three-phase transformers consists of highly integrated components, chip-on-bus single-chip micro-controllers, high-precision current-voltage transformers, high-insulation-strength output intermediate relays, high-reliability switch power modules, etc. The microcomputer protection device is mainly used for power plants, substations, distribution stations with voltage levels of 110KV and below, and can also be used for the protection and measurement and control of voltage and current systems between some voltage levels between 70V and 220V.","breadcrumb":{"@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#primaryimage","url":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016426756478.png","contentUrl":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742016426756478.png","width":370,"height":276},{"@type":"BreadcrumbList","@id":"https:\/\/www.lstransformer.com\/what-protective-devices-does-a-three-phase-transformer-have\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.lstransformer.com\/"},{"@type":"ListItem","position":2,"name":"What protective devices does a three-phase transformer have?"}]},{"@type":"WebSite","@id":"https:\/\/www.lstransformer.com\/#website","url":"https:\/\/www.lstransformer.com\/","name":"LS transformador de potencia, reactor de L\u00ednea de Alta tensi\u00f3n del transformador, el Aceite de transformador inmerso-CHANGSHA LUSHAN TECNOLOG\u00cdA ELECTR\u00d3NICA CO.,LTD","description":"","publisher":{"@id":"https:\/\/www.lstransformer.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.lstransformer.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/www.lstransformer.com\/#organization","name":"LS transformador de potencia, reactor de L\u00ednea de Alta tensi\u00f3n del transformador, el Aceite de transformador inmerso-CHANGSHA LUSHAN TECNOLOG\u00cdA ELECTR\u00d3NICA CO.,LTD","url":"https:\/\/www.lstransformer.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.lstransformer.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/06\/cropped-7e09bd7bad9c830e0d75b8487b0d77c3-1.webp","contentUrl":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/06\/cropped-7e09bd7bad9c830e0d75b8487b0d77c3-1.webp","width":760,"height":202,"caption":"LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD"},"image":{"@id":"https:\/\/www.lstransformer.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.lstransformer.com\/#\/schema\/person\/674089c15f4857c19a997f886816d289","name":"369703005","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/secure.gravatar.com\/avatar\/dcaa0e47cd7b6c99ffdd80f5772032ed2d2591b5b8e7b905e5fd87a850954248?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/dcaa0e47cd7b6c99ffdd80f5772032ed2d2591b5b8e7b905e5fd87a850954248?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/dcaa0e47cd7b6c99ffdd80f5772032ed2d2591b5b8e7b905e5fd87a850954248?s=96&d=mm&r=g","caption":"369703005"},"url":"https:\/\/www.lstransformer.com\/es\/author\/369703005\/"}]}},"_links":{"self":[{"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/posts\/1291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/comments?post=1291"}],"version-history":[{"count":4,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/posts\/1291\/revisions"}],"predecessor-version":[{"id":6703,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/posts\/1291\/revisions\/6703"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/media\/4150"}],"wp:attachment":[{"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/media?parent=1291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/categories?post=1291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lstransformer.com\/es\/wp-json\/wp\/v2\/tags?post=1291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}