{"id":21939,"date":"2025-09-22T03:17:16","date_gmt":"2025-09-22T03:17:16","guid":{"rendered":"https:\/\/www.tronkiele.com\/?post_type=product&#038;p=21939"},"modified":"2025-11-22T07:13:11","modified_gmt":"2025-11-22T07:13:11","slug":"bk100va-5kva-single-phase-isolation-control-transformer","status":"publish","type":"product","link":"https:\/\/www.tronkiele.com\/pt\/product\/bk100va-5kva-single-phase-isolation-control-transformer\/","title":{"rendered":"Transformador de pot\u00eancia de controlo de isolamento monof\u00e1sico Bk 100va-5kva"},"content":{"rendered":"<h2>Principais carater\u00edsticas e vantagens<\/h2>\n<ul>\n<li>Gama de capacidades: 100 VA - 5 kVA (ampla gama para se adaptar a pequenos pain\u00e9is de controlo at\u00e9 m\u00e1quinas m\u00e9dias).<\/li>\n<li>Op\u00e7\u00f5es de entrada flex\u00edveis: Tens\u00f5es de entrada personalizadas dispon\u00edveis - escolhas t\u00edpicas: 360 V \/ 380 V \/ 415 V \/ 440 V (monof\u00e1sico ou conforme necess\u00e1rio).<\/li>\n<li>Sa\u00eddas personaliz\u00e1veis: As sa\u00eddas padr\u00e3o incluem 12 V, 24 V, 36 V, 48 V, 60 V, 120 V, 220 V (outras tens\u00f5es dispon\u00edveis a pedido).<\/li>\n<li>M\u00f3dulo de controlo de tiristores (SCR): Regula\u00e7\u00e3o suave e r\u00e1pida com feedback de circuito fechado para manter a sa\u00edda est\u00e1vel sob varia\u00e7\u00f5es de carga ou alimenta\u00e7\u00e3o.<\/li>\n<li>Elevada efici\u00eancia: Efici\u00eancia t\u00edpica de at\u00e9 98%, dependendo do modelo e da carga.<\/li>\n<li>Forte isolamento e seguran\u00e7a: Resist\u00eancia de isolamento \u2265 50 M\u03a9; teste de resist\u00eancia diel\u00e9ctrica de 3000 V durante 1 minuto (sem avaria).<\/li>\n<li>Constru\u00e7\u00e3o duradoura: Lamina\u00e7\u00e3o de a\u00e7o-sil\u00edcio no n\u00facleo para baixas perdas e longa vida \u00fatil.<\/li>\n<li>Op\u00e7\u00f5es de cablagem f\u00e1ceis: Terminais de liga\u00e7\u00e3o em ponte\/lig\u00e1veis para configura\u00e7\u00f5es de multitap ou de tens\u00e3o diferente (torna a instala\u00e7\u00e3o flex\u00edvel).<\/li>\n<\/ul>\n<h2>Modelo Significado<\/h2>\n<figure class=\"wp-block-table\">\n<div class=\"scroll\">\n<table border=\"0\" width=\"373\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"et2\" width=\"113\" height=\"28\">Modelo<\/td>\n<td class=\"et2\" width=\"260\">BK \u25a1<\/td>\n<\/tr>\n<tr>\n<td class=\"et2\" height=\"28\">B<\/td>\n<td class=\"et2\">transformador<\/td>\n<\/tr>\n<tr>\n<td class=\"et2\" height=\"28\">K<\/td>\n<td class=\"et2\">controlo<\/td>\n<\/tr>\n<tr>\n<td class=\"et2\" height=\"28\">\u25a1<\/td>\n<td class=\"et2\">capacidade nominal<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/figure>\n<h2>Par\u00e2metros t\u00e9cnicos<\/h2>\n<figure class=\"wp-block-table\">\n<div class=\"scroll\">\n<table width=\"743\">\n<tbody>\n<tr>\n<td width=\"243\">Modelo NO.<\/td>\n<td width=\"500\">BK<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Capacidade<\/td>\n<td width=\"500\">100VA 150VA 200VA 250VA 300VA 400VA 500VA 700VA 800VA 1KVA 1.2KVA 1.5KVA 2KVA 2.5KVA 3KVA 4KVA 5KVA<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Tens\u00e3o de entrada<\/td>\n<td width=\"500\">Duas fases 440V\/415V\/380V\/360V<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Tens\u00e3o de sa\u00edda<\/td>\n<td width=\"500\">Bif\u00e1sico personaliz\u00e1vel 440V\/12V\/24V\/36V\/48V\/60V\/120V\/220V<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Frequ\u00eancia<\/td>\n<td width=\"500\">50Hz\/60Hz<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Efici\u00eancia no trabalho<\/td>\n<td width=\"500\">\u226598%<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Resist\u00eancia de isolamento<\/td>\n<td width=\"500\">\u226550M\u03a9<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Distor\u00e7\u00e3o da forma de onda<\/td>\n<td width=\"500\">Sem distor\u00e7\u00e3o adicional da forma de onda<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Capacidade de sobrecarga<\/td>\n<td width=\"500\">Duas vezes a corrente nominal durante um minuto<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Resist\u00eancia el\u00e9ctrica<\/td>\n<td width=\"500\">Tens\u00e3o sinusoidal de frequ\u00eancia industrial 3000V durante um minuto sem fen\u00f3meno de avaria<\/td>\n<\/tr>\n<tr>\n<td width=\"243\">Temperatura ambiente<\/td>\n<td width=\"500\">-15\u00b0C~+ 40\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/figure>\n<h2>Como funciona (simples)<\/h2>\n<p>A entrada alimenta o n\u00facleo do transformador.<br \/>\nO m\u00f3dulo de controlo do SCR ajusta o \u00e2ngulo de condu\u00e7\u00e3o para regular a tens\u00e3o de sa\u00edda.<br \/>\nUm circuito de feedback monitoriza constantemente a sa\u00edda versus o ponto de regula\u00e7\u00e3o e corrige o disparo do SCR para manter a tens\u00e3o est\u00e1vel.<br \/>\nEsta abordagem em circuito fechado permite uma regula\u00e7\u00e3o suave e protege os dispositivos de controlo sens\u00edveis contra picos ou quebras.<\/p>\n<h2>Especifica\u00e7\u00f5es<\/h2>\n<figure class=\"wp-block-table\">\n<div class=\"scroll\">\n<table border=\"0\" width=\"854\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"et2\" rowspan=\"2\" width=\"122\" height=\"56\">MODELO<\/td>\n<td class=\"et4\" colspan=\"3\" width=\"366\">Tamanho total (mm)<\/td>\n<td class=\"et4\" colspan=\"2\" width=\"244\">Tamanho da instala\u00e7\u00e3o<\/td>\n<td class=\"et2\" rowspan=\"2\" width=\"122\">Abertura<span class=\"font1\">(K*J)<\/span><\/td>\n<\/tr>\n<tr>\n<td class=\"et5\" width=\"122\">B<\/td>\n<td class=\"et5\" width=\"122\">D<\/td>\n<td class=\"et4\" width=\"122\">E<\/td>\n<td class=\"et4\" width=\"122\">A<\/td>\n<td class=\"et4\" width=\"122\">C<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-100<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">98<\/td>\n<td class=\"et3\" width=\"122\">85<\/td>\n<td class=\"et3\" width=\"122\">108<\/td>\n<td class=\"et3\" width=\"122\">84<\/td>\n<td class=\"et3\" width=\"122\">65<\/td>\n<td class=\"et3\" width=\"122\">5*8<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-150<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">105<\/td>\n<td class=\"et3\" width=\"122\">86<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">76<\/td>\n<td class=\"et3\" width=\"122\">77<\/td>\n<td class=\"et3\" width=\"122\">5*8<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-200<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">105<\/td>\n<td class=\"et3\" width=\"122\">105<\/td>\n<td class=\"et3\" width=\"122\">115<\/td>\n<td class=\"et3\" width=\"122\">85<\/td>\n<td class=\"et3\" width=\"122\">87<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-250<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">105<\/td>\n<td class=\"et3\" width=\"122\">115<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">85<\/td>\n<td class=\"et3\" width=\"122\">95<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-300<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">115<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">115<\/td>\n<td class=\"et3\" width=\"122\">90<\/td>\n<td class=\"et3\" width=\"122\">90<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-400<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">135<\/td>\n<td class=\"et3\" width=\"122\">125<\/td>\n<td class=\"et3\" width=\"122\">140<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">97<\/td>\n<td class=\"et3\" width=\"122\">8*13<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-500<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">135<\/td>\n<td class=\"et3\" width=\"122\">130<\/td>\n<td class=\"et3\" width=\"122\">140<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">103<\/td>\n<td class=\"et3\" width=\"122\">8*13<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-600<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">152<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">150<\/td>\n<td class=\"et3\" width=\"122\">120<\/td>\n<td class=\"et3\" width=\"122\">90<\/td>\n<td class=\"et3\" width=\"122\">8*13<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK<span class=\"font1\">-700<\/span><span class=\"font1\">VA<\/span><\/td>\n<td class=\"et3\" width=\"122\">152<\/td>\n<td class=\"et3\" width=\"122\">110<\/td>\n<td class=\"et3\" width=\"122\">150<\/td>\n<td class=\"et3\" width=\"122\">120<\/td>\n<td class=\"et3\" width=\"122\">90<\/td>\n<td class=\"et3\" width=\"122\">8*13<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-800VA<\/td>\n<td class=\"et3\" width=\"122\">152<\/td>\n<td class=\"et3\" width=\"122\">125<\/td>\n<td class=\"et3\" width=\"122\">150<\/td>\n<td class=\"et3\" width=\"122\">120<\/td>\n<td class=\"et3\" width=\"122\">105<\/td>\n<td class=\"et3\" width=\"122\">8*13<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-1KVA<\/td>\n<td class=\"et3\" width=\"122\">152<\/td>\n<td class=\"et3\" width=\"122\">142<\/td>\n<td class=\"et3\" width=\"122\">165<\/td>\n<td class=\"et3\" width=\"122\">120<\/td>\n<td class=\"et3\" width=\"122\">120<\/td>\n<td class=\"et3\" width=\"122\">8*13<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-1,5KVA<\/td>\n<td class=\"et3\" width=\"122\">175<\/td>\n<td class=\"et3\" width=\"122\">170<\/td>\n<td class=\"et3\" width=\"122\">195<\/td>\n<td class=\"et3\" width=\"122\">130<\/td>\n<td class=\"et3\" width=\"122\">120<\/td>\n<td class=\"et3\" width=\"122\">8.5*17<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-2KVA<\/td>\n<td class=\"et3\" width=\"122\">205<\/td>\n<td class=\"et3\" width=\"122\">215<\/td>\n<td class=\"et3\" width=\"122\">230<\/td>\n<td class=\"et3\" width=\"122\">170<\/td>\n<td class=\"et3\" width=\"122\">130<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-2,5KVA<\/td>\n<td class=\"et3\" width=\"122\">205<\/td>\n<td class=\"et3\" width=\"122\">225<\/td>\n<td class=\"et3\" width=\"122\">230<\/td>\n<td class=\"et3\" width=\"122\">170<\/td>\n<td class=\"et3\" width=\"122\">140<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-3KVA<\/td>\n<td class=\"et3\" width=\"122\">205<\/td>\n<td class=\"et3\" width=\"122\">240<\/td>\n<td class=\"et3\" width=\"122\">230<\/td>\n<td class=\"et3\" width=\"122\">170<\/td>\n<td class=\"et3\" width=\"122\">150<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-4KVA<\/td>\n<td class=\"et3\" width=\"122\">235<\/td>\n<td class=\"et3\" width=\"122\">265<\/td>\n<td class=\"et3\" width=\"122\">260<\/td>\n<td class=\"et3\" width=\"122\">195<\/td>\n<td class=\"et3\" width=\"122\">175<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<tr>\n<td class=\"et3\" width=\"122\" height=\"28\">BK-5KVA<\/td>\n<td class=\"et3\" width=\"122\">235<\/td>\n<td class=\"et3\" width=\"122\">280<\/td>\n<td class=\"et3\" width=\"122\">260<\/td>\n<td class=\"et3\" width=\"122\">195<\/td>\n<td class=\"et3\" width=\"122\">190<\/td>\n<td class=\"et3\" width=\"122\">8*11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/figure>\n<h2>Dimens\u00f5es do transformador de controlo<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-21943 size-full\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions.webp\" alt=\"Dimens\u00f5es do transformador de controlo\" width=\"889\" height=\"337\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions.webp 889w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions-400x152.webp 400w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions-768x291.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions-18x7.webp 18w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions-430x163.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions-700x265.webp 700w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Control-transformer-dimensions-150x57.webp 150w\" sizes=\"(max-width: 889px) 100vw, 889px\" \/><\/p>\n<h2>Aplica\u00e7\u00f5es t\u00edpicas<\/h2>\n<p>Circuitos de controlo para m\u00e1quinas CNC e accionamentos de motores.<br \/>\nAutoma\u00e7\u00e3o industrial: PLCs, rel\u00e9s, contactores.<br \/>\nCircuitos de controlo de ilumina\u00e7\u00e3o e AVAC que necessitam de isolamento.<br \/>\nEquipamento de laborat\u00f3rio e de teste que requer uma pot\u00eancia de controlo precisa e de baixa distor\u00e7\u00e3o.<br \/>\nQualquer aplica\u00e7\u00e3o que necessite de um transformador monof\u00e1sico com sa\u00edda regulada com precis\u00e3o ou isolamento el\u00e9trico.<\/p>\n<h2>Porqu\u00ea escolher os transformadores ZHENGXI BK<\/h2>\n<p>Fabrico com certifica\u00e7\u00e3o ISO e controlo de qualidade global.<br \/>\nEngenharia personalizada: adaptamos as tens\u00f5es, a montagem, as caixas e a frequ\u00eancia (50\/60 Hz) \u00e0s suas necessidades.<br \/>\nPronto para exporta\u00e7\u00e3o: Conformidade CE e RoHS para mercados internacionais.<br \/>\nExperi\u00eancia comprovada: d\u00e9cadas a fornecer solu\u00e7\u00f5es OEM\/ODM a clientes industriais em todo o mundo.<\/p>\n<h2>FAQs<\/h2>\n<p><strong>Q1: O que distingue um transformador BK de um transformador monof\u00e1sico normal?<\/strong><br \/>\nR: O BK \u00e9 um transformador de controlo\/isolamento que inclui um m\u00f3dulo de tiristor (SCR) e feedback para regula\u00e7\u00e3o da tens\u00e3o em circuito fechado. Um transformador monof\u00e1sico normal apenas aumenta ou diminui a tens\u00e3o e n\u00e3o regula ativamente a sa\u00edda sob condi\u00e7\u00f5es de entrada vari\u00e1veis.<\/p>\n<p><strong>Q2: Como \u00e9 que escolho o tamanho correto (VA\/kVA)?<\/strong><br \/>\nR: Some a carga do circuito de controlo em VA e, em seguida, adicione uma margem de 20-25% para corrente de arranque ou de pico. Se n\u00e3o tiver a certeza, envie a sua lista de cargas para os nossos engenheiros e n\u00f3s recomendaremos o tamanho correto do transformador BK.<\/p>\n<p><strong>Q3: Podem personalizar as tens\u00f5es e os inv\u00f3lucros para exporta\u00e7\u00e3o?<\/strong><br \/>\nR: Sim. Fornecemos tens\u00f5es de entrada\/sa\u00edda personalizadas, op\u00e7\u00f5es de 50\/60 Hz e caixas de grau de exporta\u00e7\u00e3o. A ZHENGXI suporta os requisitos CE e RoHS.<\/p>\n<p>Precisa de um or\u00e7amento ou de ajuda para dimensionar o transformador BK ou o transformador de controlo certo para o seu equipamento? Contacte hoje mesmo os nossos engenheiros - oferecemos solu\u00e7\u00f5es personalizadas r\u00e1pidas e apoio t\u00e9cnico.<\/p>","protected":false},"excerpt":{"rendered":"<p data-start=\"749\" data-end=\"1124\">O <strong data-start=\"753\" data-end=\"766\">S\u00e9rie BK<\/strong> transformador de pot\u00eancia de controlo de isolamento monof\u00e1sico (vulgarmente designado por <strong data-start=\"835\" data-end=\"853\">Transformador BK<\/strong>) fornece tens\u00f5es de controlo est\u00e1veis e isoladas para equipamento industrial e comercial. Dispon\u00edvel a partir de <strong data-start=\"954\" data-end=\"973\">100 VA a 5 kVA<\/strong>A unidade utiliza um m\u00f3dulo de controlo de tiristores (SCR) com feedback para fornecer uma regula\u00e7\u00e3o precisa da tens\u00e3o em circuito fechado, mesmo quando a alimenta\u00e7\u00e3o de entrada flutua.<\/p>\n<p data-start=\"1126\" data-end=\"1348\">Este transformador de controlo \u00e9 constru\u00eddo de acordo com as normas internacionais de seguran\u00e7a e efici\u00eancia e \u00e9 perfeito para m\u00e1quinas CNC, PLCs, pain\u00e9is de automa\u00e7\u00e3o, circuitos de ilumina\u00e7\u00e3o e outros sistemas de precis\u00e3o que necessitam de uma alimenta\u00e7\u00e3o de controlo est\u00e1vel.<\/p>","protected":false},"featured_media":21940,"template":"","meta":[],"product_brand":[],"product_cat":[101,98,42,99],"product_tag":[],"class_list":{"0":"post-21939","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-control-transformers","7":"product_cat-isolation-transformer","8":"product_cat-low-voltage-transformer","9":"product_cat-single-phase-transformers","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bk Single Phase Isolation Control Transformer Manufacturer - PINE-ZHENGXI<\/title>\n<meta name=\"description\" content=\"BK series single-phase isolation control transformer (100VA\u20135kVA). Thyristor (SCR) control, closed-loop regulation, high efficiency, customizable voltages. Ideal control transformer for CNC, automation, lighting.\" \/>\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.tronkiele.com\/pt\/product\/bk100va-5kva-single-phase-isolation-control-transformer\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bk Single Phase Isolation Control Transformer Manufacturer - PINE-ZHENGXI\" \/>\n<meta property=\"og:description\" content=\"BK series single-phase isolation control transformer (100VA\u20135kVA). Thyristor (SCR) control, closed-loop regulation, high efficiency, customizable voltages. 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