{"id":145086,"date":"2024-03-21T14:05:35","date_gmt":"2024-03-21T14:05:35","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/equacao-disjuntor-calculo-e-uso\/"},"modified":"2024-03-22T05:54:31","modified_gmt":"2024-03-22T05:54:31","slug":"equacao-disjuntor-calculo-e-uso","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/","title":{"rendered":"Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso"},"content":{"rendered":"<p class=\"sidekick\">Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.<\/p>\n<h2>O Que \u00e9 uma Equa\u00e7\u00e3o Disjuntor?<\/h2>\n<p>Ao lidar com sistemas el\u00e9tricos, a seguran\u00e7a \u00e9 uma prioridade m\u00e1xima. Uma das maneiras de garantir essa seguran\u00e7a \u00e9 atrav\u00e9s do uso de disjuntores, que s\u00e3o dispositivos autom\u00e1ticos de prote\u00e7\u00e3o contra sobrecorrente. Quando h\u00e1 um excesso de corrente &#8211; devido a uma sobrecarga ou curto-circuito &#8211; o disjuntor interrompe o circuito el\u00e9trico para proteger os componentes e evitar inc\u00eandios ou danos. Para selecionar ou verificar um disjuntor adequadamente, \u00e9 necess\u00e1rio entender a equa\u00e7\u00e3o disjuntor, que \u00e9 usada para calcular a corrente na qual o disjuntor deve atuar.<\/p>\n<h2>C\u00e1lculo do Disjuntor<\/h2>\n<p>A corrente nominal de um disjuntor \u00e9 a corrente m\u00e1xima que ele pode conduzir sem interromper o circuito. No entanto, para o c\u00e1lculo do disjuntor, usa-se a seguinte f\u00f3rmula b\u00e1sica:<\/p>\n<p>\\[I_n = \\frac{P}{V \\times \\cos(\\varphi) \\times \\sqrt{3}}\\]<\/p>\n<p>Onde:<\/p>\n<ul>\n<li>\\(I_n\\) \u00e9 a corrente nominal do disjuntor (em amperes, A).<\/li>\n<li>\\(P\\) \u00e9 a pot\u00eancia total dos dispositivos protegidos pelo disjuntor (em watts, W).<\/li>\n<li>\\(V\\) \u00e9 a tens\u00e3o da rede (em volts, V).<\/li>\n<li>\\(\\cos(\\varphi)\\) \u00e9 o fator de pot\u00eancia do circuito (sem unidade).<\/li>\n<li>\\(\\sqrt{3}\\) \u00e9 um fator que se aplica a sistemas de corrente alternada trif\u00e1sicos. Para sistemas monof\u00e1sicos, esse fator n\u00e3o \u00e9 aplicado.<\/li>\n<\/ul>\n<p>Deve-se ressaltar que este \u00e9 um c\u00e1lculo b\u00e1sico. Na pr\u00e1tica, engenheiros levam em considera\u00e7\u00e3o normas t\u00e9cnicas que podem adicionar coeficientes de seguran\u00e7<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[84],"tags":[85],"class_list":["post-145086","post","type-post","status-publish","format-standard","hentry","category-ecuaciones","tag-ecuaciones","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso<\/title>\n<meta name=\"description\" content=\"Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.\" \/>\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.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso\" \/>\n<meta property=\"og:description\" content=\"Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/\" \/>\n<meta property=\"og:site_name\" content=\"Electricity - Magnetism\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T14:05:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T05:54:31+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Matan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#website\",\"url\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/\",\"name\":\"Electricity - Magnetism\",\"description\":\"All about electricity and magnetism.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/#webpage\",\"url\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/\",\"name\":\"Equa\\u00e7\\u00e3o Disjuntor | C\\u00e1lculo e Uso\",\"isPartOf\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#website\"},\"datePublished\":\"2024-03-21T14:05:35+00:00\",\"dateModified\":\"2024-03-22T05:54:31+00:00\",\"author\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29\"},\"description\":\"Descubra o que \\u00e9 uma equa\\u00e7\\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\\u00e7a dos sistemas el\\u00e9tricos.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/electricity-magnetism-page\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Equa\\u00e7\\u00e3o Disjuntor | C\\u00e1lculo e Uso\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29\",\"name\":\"Matan\",\"url\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/author\/matan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso","description":"Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.","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.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/","og_locale":"pt_BR","og_type":"article","og_title":"Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso","og_description":"Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.","og_url":"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/","og_site_name":"Electricity - Magnetism","article_published_time":"2024-03-21T14:05:35+00:00","article_modified_time":"2024-03-22T05:54:31+00:00","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Matan","Est. tempo de leitura":"1 minuto"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#website","url":"https:\/\/www.electricity-magnetism.org\/pt-br\/","name":"Electricity - Magnetism","description":"All about electricity and magnetism.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.electricity-magnetism.org\/pt-br\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"pt-BR"},{"@type":"WebPage","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/#webpage","url":"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/","name":"Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso","isPartOf":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#website"},"datePublished":"2024-03-21T14:05:35+00:00","dateModified":"2024-03-22T05:54:31+00:00","author":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29"},"description":"Descubra o que \u00e9 uma equa\u00e7\u00e3o disjuntor e como calcular a corrente nominal para escolher um disjuntor adequadamente, garantindo a seguran\u00e7a dos sistemas el\u00e9tricos.","breadcrumb":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/equacao-disjuntor-calculo-e-uso\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.electricity-magnetism.org\/pt-br\/electricity-magnetism-page\/"},{"@type":"ListItem","position":2,"name":"Equa\u00e7\u00e3o Disjuntor | C\u00e1lculo e Uso"}]},{"@type":"Person","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29","name":"Matan","url":"https:\/\/www.electricity-magnetism.org\/pt-br\/author\/matan\/"}]}},"_links":{"self":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/posts\/145086","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/comments?post=145086"}],"version-history":[{"count":0,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/posts\/145086\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/media?parent=145086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/categories?post=145086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/tags?post=145086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}