{"id":2353,"date":"2025-08-21T05:27:41","date_gmt":"2025-08-21T05:27:41","guid":{"rendered":"https:\/\/www.lauramak.com\/?post_type=product&#038;p=2353"},"modified":"2025-09-19T06:14:13","modified_gmt":"2025-09-19T06:14:13","slug":"single-phase-ac-isolation-transformer-300w-2000w","status":"publish","type":"product","link":"https:\/\/www.lauramak.com\/pt\/produto\/transformador-de-isolamento-monofasico-de-corrente-alternada-300w-2000w\/","title":{"rendered":"GBK2 Transformador monof\u00e1sico de isolamento de seguran\u00e7a anti-interfer\u00eancia para \u00e1udio AC 300W-2000W"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Os transformadores de isolamento avan\u00e7ados da Zhengxi fornecem:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Seguran\u00e7a el\u00e9ctrica superior<\/strong><\/li>\n\n\n\n<li><strong>Pot\u00eancia sem ru\u00eddo para uma qualidade de \u00e1udio superior<\/strong><\/li>\n\n\n\n<li><strong>Prote\u00e7\u00e3o fi\u00e1vel para dispositivos m\u00e9dicos sens\u00edveis<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Par\u00e2metros t\u00e9cnicos<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Modelo NO.<\/td><td>GBK2<\/td><\/tr><tr><td>Capacidade<\/td><td>300VA 500VA 1000VA 2000VA<\/td><\/tr><tr><td>Frequ\u00eancia<\/td><td>50\/60HZ<\/td><\/tr><tr><td>Pot\u00eancia nominal<\/td><td>500VA (GBK-500VA, por exemplo)<\/td><\/tr><tr><td>Corrente nominal<\/td><td>2.28A<\/td><\/tr><tr><td>Carga recomendada<\/td><td>\u2264 80%<\/td><\/tr><tr><td>Classe de isolamento<\/td><td>Classe F<\/td><\/tr><tr><td>Resist\u00eancia de isolamento<\/td><td>\u22655M\u03a9<\/td><\/tr><tr><td>Tens\u00e3o de funcionamento<\/td><td>2500V 1min sem avaria<\/td><\/tr><tr><td>Humidade relativa<\/td><td>N\u00e3o superior a 90%<\/td><\/tr><tr><td>Temperatura ambiente<\/td><td>-15\u00b0C~+ 40\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Especifica\u00e7\u00e3o<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>MODELO<\/td><td>Tens\u00e3o de entrada<\/td><td>Tens\u00e3o de sa\u00edda<\/td><td>pot\u00eancia de carga<\/td><td>Medida (mm) Comprimento*Largura*Altura<\/td><\/tr><tr><td>GBK2-300VA<\/td><td rowspan=\"4\">220V\u00b110%\u3001 120V\u00b110% ou Personalizado<\/td><td rowspan=\"4\">220V\u00b110%\u3001 120V\u00b110% ou Personalizado<\/td><td>\u2264300VA<\/td><td>350*650*572<\/td><\/tr><tr><td>GBK2-500VA<\/td><td>\u2264500VA<\/td><td>350*650*572<\/td><\/tr><tr><td>GBK2-1000VA<\/td><td>\u22641000VA<\/td><td>350*650*572<\/td><\/tr><tr><td>GBK2-2000VA<\/td><td>\u22642000VA<\/td><td>350*665*820<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">I. Como funcionam os transformadores de isolamento - e porque s\u00e3o importantes<\/h2>\n\n\n\n<p>Um <strong>transformador de isolamento<\/strong> utiliza\u00e7\u00f5es <strong>indu\u00e7\u00e3o electromagn\u00e9tica<\/strong> para transferir energia el\u00e9ctrica do enrolamento prim\u00e1rio para o enrolamento secund\u00e1rio <strong>sem liga\u00e7\u00e3o el\u00e9ctrica direta<\/strong>. Embora as tens\u00f5es de entrada e sa\u00edda permane\u00e7am as mesmas<strong>120V a 120V<\/strong> neste caso, o transformador <strong>isola eletricamente<\/strong> dispositivos ligados \u00e0 rede el\u00e9ctrica.<\/p>\n\n\n\n<p>Para <strong>equipamento \u00e1udio e m\u00e9dico<\/strong>Este isolamento tem dois objectivos principais:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Seguran\u00e7a refor\u00e7ada<\/strong> - Evita choques el\u00e9ctricos e protege os utilizadores de correntes de fuga acidentais.<\/li>\n\n\n\n<li><strong>Melhoria da estabilidade do equipamento<\/strong> - Reduz as interfer\u00eancias e assegura um fornecimento de energia consistente.<\/li>\n<\/ul>\n\n\n\n<p>Por exemplo, o projeto Zhengxi <strong>Fontes de alimenta\u00e7\u00e3o isoladas tipo seco GBK<\/strong> s\u00e3o constru\u00eddos com <strong>materiais de isolamento de alto desempenho<\/strong>garantindo que, mesmo em caso de avaria, os operadores e os doentes permanecem protegidos de tens\u00f5es perigosas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">II. Aplica\u00e7\u00f5es em equipamentos de \u00e1udio<\/h2>\n\n\n\n<p>Os sistemas de \u00e1udio topo de gama requerem <strong>energia limpa e est\u00e1vel<\/strong> para proporcionar um desempenho \u00f3timo. As flutua\u00e7\u00f5es da rede el\u00e9ctrica e as interfer\u00eancias electromagn\u00e9ticas podem introduzir <strong>zumbido, est\u00e1tica e distor\u00e7\u00e3o<\/strong> em sinais de \u00e1udio.<\/p>\n\n\n\n<p>Utilizar um <strong>Transformador de isolamento de 120V<\/strong> oferece v\u00e1rias vantagens importantes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Supress\u00e3o de ru\u00eddo<\/strong> - Elimina o ru\u00eddo da linha de alimenta\u00e7\u00e3o para <strong>som mais claro e de alta fidelidade<\/strong>.<\/li>\n\n\n\n<li><strong>Redu\u00e7\u00e3o das interfer\u00eancias electromagn\u00e9ticas<\/strong> - Essencial para <strong>est\u00fadios de grava\u00e7\u00e3o<\/strong>, <strong>teatros<\/strong>e <strong>salas de espect\u00e1culos<\/strong> onde v\u00e1rios dispositivos de alta pot\u00eancia funcionam simultaneamente.<\/li>\n\n\n\n<li><strong>Estabilidade da tens\u00e3o<\/strong> - Protege componentes sens\u00edveis em <strong>amplificadores e altifalantes topo de gama<\/strong> das flutua\u00e7\u00f5es de energia.<\/li>\n<\/ul>\n\n\n\n<p>Para engenheiros de \u00e1udio profissionais, a instala\u00e7\u00e3o de um transformador de isolamento Zhengxi pode melhorar significativamente <strong>pureza e consist\u00eancia do som<\/strong>, tornando-o um investimento essencial para qualquer <strong>configura\u00e7\u00e3o \u00e1udio de n\u00edvel de est\u00fadio<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">III. Aplica\u00e7\u00f5es em equipamentos m\u00e9dicos<\/h2>\n\n\n\n<p>Os dispositivos m\u00e9dicos exigem ainda mais <strong>maior n\u00edvel de seguran\u00e7a e fiabilidade el\u00e9ctrica<\/strong> do que os sistemas de \u00e1udio. Em hospitais, cl\u00ednicas e laborat\u00f3rios, at\u00e9 mesmo pequenas perturba\u00e7\u00f5es de energia podem afetar os cuidados dos pacientes e o desempenho do equipamento.<\/p>\n\n\n\n<p>Os transformadores de isolamento desempenham um papel vital:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Garantir a seguran\u00e7a dos doentes<\/strong> - Evita que a corrente de fuga atinja os doentes durante os procedimentos de diagn\u00f3stico ou cir\u00fargicos.<\/li>\n\n\n\n<li><strong>Prote\u00e7\u00e3o de equipamento sens\u00edvel<\/strong> - Protege dispositivos como <strong>M\u00e1quinas de resson\u00e2ncia magn\u00e9tica, monitores de ECG, ventiladores e bombas de infus\u00e3o<\/strong> de sobretens\u00f5es e interfer\u00eancias nocivas.<\/li>\n\n\n\n<li><strong>Manuten\u00e7\u00e3o de opera\u00e7\u00f5es est\u00e1veis<\/strong> - Assegura um desempenho ininterrupto em <strong>\u00e1reas cr\u00edticas<\/strong> como salas de opera\u00e7\u00f5es e unidades de cuidados intensivos.<\/li>\n<\/ul>\n\n\n\n<p>Por exemplo, o projeto Zhengxi <strong>Transformadores de isolamento de seguran\u00e7a GBK de tipo seco<\/strong> s\u00e3o normalmente instalados em <strong>salas de cirurgia<\/strong> e <strong>UTIs<\/strong> para proteger os doentes e o pessoal m\u00e9dico, mantendo a fiabilidade do equipamento.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">IV. Como escolher o transformador de isolamento correto<\/h2>\n\n\n\n<p>Ao selecionar um <strong>transformador de isolamento monof\u00e1sico de 120V para 120V<\/strong>, considere estes factores-chave:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Pot\u00eancia nominal (kVA)<\/strong>\n<ul class=\"wp-block-list\">\n<li>Fa\u00e7a corresponder a capacidade do transformador aos requisitos de pot\u00eancia do seu equipamento. Escolha uma classifica\u00e7\u00e3o ligeiramente superior para fazer face a futuras actualiza\u00e7\u00f5es.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Certifica\u00e7\u00f5es de seguran\u00e7a<\/strong>\n<ul class=\"wp-block-list\">\n<li>Optar por transformadores em conformidade com <strong>GB\/T 13028<\/strong> e normas de seguran\u00e7a internacionais para garantir a qualidade e a fiabilidade.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Qualidade de constru\u00e7\u00e3o<\/strong>\n<ul class=\"wp-block-list\">\n<li>Dar prioridade aos desenhos de tipo seco com <strong>materiais de isolamento de alta qualidade<\/strong> para uma maior seguran\u00e7a e uma vida \u00fatil mais longa.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Desempenho do ru\u00eddo<\/strong>\n<ul class=\"wp-block-list\">\n<li>Para sistemas de \u00e1udio, escolha transformadores de baixo ru\u00eddo para minimizar a distor\u00e7\u00e3o.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Tamanho e instala\u00e7\u00e3o<\/strong>\n<ul class=\"wp-block-list\">\n<li>Os designs compactos e leves facilitam a integra\u00e7\u00e3o, especialmente em ambientes de est\u00fadio e hospitalares.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">V. Conselhos de manuten\u00e7\u00e3o para uma fiabilidade a longo prazo<\/h2>\n\n\n\n<p>Para manter o transformador de isolamento no seu melhor desempenho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inspecionar regularmente<\/strong> - Verifique o isolamento, a cablagem e as liga\u00e7\u00f5es quanto a desgaste ou danos.<\/li>\n\n\n\n<li><strong>Limpar o p\u00f3 e os detritos<\/strong> - A acumula\u00e7\u00e3o de p\u00f3 pode reduzir a dissipa\u00e7\u00e3o de calor e a efici\u00eancia.<\/li>\n\n\n\n<li><strong>Evitar a sobrecarga<\/strong> - Nunca exceder a capacidade nominal do transformador.<\/li>\n\n\n\n<li><strong>Monitorizar a temperatura<\/strong> - Assegurar uma ventila\u00e7\u00e3o adequada para evitar o sobreaquecimento.<\/li>\n<\/ul>\n\n\n\n<p>A manuten\u00e7\u00e3o de rotina garante que o seu transformador fornece <strong>desempenho est\u00e1vel e prote\u00e7\u00e3o m\u00e1xima<\/strong> para os pr\u00f3ximos anos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Enquanto um <strong>transformador de isolamento monof\u00e1sico de 120V para 120V<\/strong> pode parecer redundante \u00e0 primeira vista, desempenha um papel <strong>papel insubstitu\u00edvel<\/strong> na prote\u00e7\u00e3o <strong>sistemas \u00e1udio<\/strong> e <strong>equipamento m\u00e9dico<\/strong> de riscos el\u00e9ctricos e perturba\u00e7\u00f5es de energia.<\/p>\n\n\n\n<p>Para quem procura <strong>som de alta qualidade<\/strong> ou <strong>seguran\u00e7a el\u00e9ctrica de n\u00edvel m\u00e9dico<\/strong>Se o seu neg\u00f3cio \u00e9 a constru\u00e7\u00e3o de um transformador de isolamento Zhengxi, n\u00e3o se arrepender\u00e1.<\/p>","protected":false},"excerpt":{"rendered":"<p>Os transformadores de isolamento avan\u00e7ados da Zhengxi fornecem: Par\u00e2metros t\u00e9cnicos Modelo NO. GBK2 Capacidade 300VA 500VA 1000VA 2000VA Frequ\u00eancia 50\/60HZ Pot\u00eancia nominal 500VA (GBK-500VA por exemplo) Corrente nominal 2.28A Carga recomendada \u2264 80% Classe de isolamento Classe F Resist\u00eancia de isolamento \u22655M\u03a9 Tens\u00e3o de trabalho 2500V 1min sem avaria Humidade relativa N\u00e3o superior a 90% Temperatura ambiente -15\u00b0C~+ 40\u00b0C Especifica\u00e7\u00e3o MODELO Tens\u00e3o de entrada Tens\u00e3o de sa\u00edda Pot\u00eancia de carga Medida (mm) Comprimento*Largura*Altura GBK2-300VA 220V\u00b110%\u3001 120V\u00b110% ou Personalizado 220V\u00b110%\u3001 120V\u00b110% ou Personalizado \u2264300VA 350*650*572 [...]<\/p>","protected":false},"featured_media":2355,"parent":0,"menu_order":0,"template":"","tags":[],"product-categories":[59,58],"class_list":["post-2353","product","type-product","status-publish","has-post-thumbnail","hentry","product-categories-isolation-transformer","product-categories-low-voltage-transformer"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Single-Phase AC Isolation Transformer 300W-2000W Wholesaler - SUNWAY<\/title>\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.lauramak.com\/pt\/produto\/transformador-de-isolamento-monofasico-de-corrente-alternada-300w-2000w\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Single-Phase AC Isolation Transformer 300W-2000W Wholesaler - SUNWAY\" \/>\n<meta property=\"og:description\" content=\"Zhengxi\u2019s advanced isolation transformers deliver: Technical Parameters Model NO. GBK2 Capacity 300VA&nbsp;&nbsp; 500VA&nbsp;&nbsp; 1000VA&nbsp;&nbsp; 2000VA Frequency 50\/60HZ Rated&nbsp;Power 500VA&nbsp;(GBK-500VA&nbsp;for&nbsp;example) Rated&nbsp;Current 2.28A Recommended&nbsp;load \u2264 80% Insulation class Class&nbsp;F Insulation&nbsp;resistance \u22655M\u03a9 Working Voltage 2500V&nbsp;1min&nbsp;no&nbsp;breakdown Relative&nbsp;Humidity Not&nbsp;more&nbsp;than&nbsp;90% Ambient temperature -15\u00b0C~+ 40\u00b0C Specification MODEL Input voltage Output voltage load&nbsp;power Measurement(mm)&nbsp;Length*Width*Height GBK2-300VA 220V\u00b110%\u3001&nbsp;120V\u00b110% or Customized 220V\u00b110%\u3001&nbsp;120V\u00b110% or Customized \u2264300VA 350*650*572 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.lauramak.com\/pt\/produto\/transformador-de-isolamento-monofasico-de-corrente-alternada-300w-2000w\/\" \/>\n<meta property=\"og:site_name\" content=\"SUNWAY\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-19T06:14:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/GBK2-Single-Phase-AC-Audio-Safety-Isolation-Anti-Interference-Transformer-300W-2000W.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.lauramak.com\/product\/single-phase-ac-isolation-transformer-300w-2000w\/\",\"url\":\"https:\/\/www.lauramak.com\/product\/single-phase-ac-isolation-transformer-300w-2000w\/\",\"name\":\"Single-Phase AC Isolation Transformer 300W-2000W Wholesaler - 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