{"id":14104,"date":"2023-09-18T00:07:52","date_gmt":"2023-09-18T00:07:52","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14104"},"modified":"2023-12-26T08:44:13","modified_gmt":"2023-12-26T08:44:13","slug":"what-is-harmonic","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/pt_br\/glossario\/o-que-e-harmonico","title":{"rendered":"O que \u00e9 Harm\u00f4nico"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-harmonic\">O que \u00e9 Harm\u00f4nico<\/h2><p>Na ind\u00fastria de ilumina\u00e7\u00e3o, o termo \u201charm\u00f4nico\u201d refere-se a um componente de um sinal peri\u00f3dico distorcido ou n\u00e3o senoidal que possui uma frequ\u00eancia que \u00e9 um m\u00faltiplo inteiro par diferente de zero da frequ\u00eancia fundamental do sinal. Os harm\u00f4nicos podem ocorrer em correntes ou tens\u00f5es e s\u00e3o tipicamente causados por cargas n\u00e3o lineares no sistema el\u00e9trico.<\/p><div class=\"insert_portfolio_outer_wrapper\"><h3>Inspire-se com os Portf\u00f3lios de Sensores de Movimento Rayzeek.<\/h3><p>N\u00e3o encontrou o que deseja? N\u00e3o se preocupe. Sempre h\u00e1 maneiras alternativas de resolver seus problemas. Talvez um de nossos portf\u00f3lios possa ajudar.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/pt_br\/product-category\/sensores-de-movimento\"><p>Sensores de Movimento PIR<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/interruptores-com-sensor-de-movimento\"><p>Interruptores com Sensor de Movimento<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/occupancy-vacancy-sensors\"><p>Sensores de Ocupa\u00e7\u00e3o<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/produtos\/rz050\"><p>Sensor de Movimento para Ar Condicionado<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/product-category\/fita-de-luz-com-sensor-de-movimento\"><p>Fitas de LED com Sensor de Movimento<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/product-category\/sensor-dimmer-dc\"><p>Sensores de Movimento\/Dimerizadores de Baixa Tens\u00e3o DC<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/product-category\/sensores-de-movimento-sem-fio\"><p>Kits de Sensores de Movimento Sem Fio<\/p><\/a><\/div><\/div><\/div><\/div><p>Harm\u00f4nicos podem levar a v\u00e1rios problemas na ind\u00fastria de ilumina\u00e7\u00e3o. Um problema comum \u00e9 o cintilamento das luzes, que pode ocorrer quando h\u00e1 flutua\u00e7\u00f5es r\u00e1pidas na corrente ou na tens\u00e3o da carga, particularmente em m\u00e1quinas. Exemplos de m\u00e1quinas que podem causar cintilamento incluem grandes motores durante a partida, m\u00e1quinas com cicloconversores como acionamentos de laminadores e elevadores de minas, e m\u00e1quinas que usam conversores de frequ\u00eancia est\u00e1ticos, como motores de corrente alternada e fornos de arco el\u00e9trico.<\/p><p>Outro problema causado pelos harm\u00f4nicos \u00e9 o superaquecimento de transformadores e o disparo de disjuntores. Isso ocorre quando cargas n\u00e3o lineares puxam corrente em pulsos abruptos, em vez de de forma suave e sinusoidal. As correntes harm\u00f4nicas geradas por essas cargas n\u00e3o lineares podem retornar para outras partes do sistema de energia, resultando no superaquecimento de transformadores e no disparo de disjuntores.<\/p><p>Para medir a presen\u00e7a de harm\u00f4nicos, costuma-se usar a Distor\u00e7\u00e3o Harm\u00f4nica Total (THD). A THD \u00e9 a soma de todos os efeitos harm\u00f4nicos e geralmente \u00e9 medida at\u00e9 o 50\u00ba m\u00faltiplo da frequ\u00eancia fundamental (60 Hz nos EUA) ou a 3 kHz. Recomenda-se que os efeitos harm\u00f4nicos na tens\u00e3o sejam inferiores a 8 por cento em rela\u00e7\u00e3o \u00e0 frequ\u00eancia fundamental, e valores acima de 8 por cento devem ser investigados mais a fundo.<\/p><div class=\"insert_inquiry_outer_wrapper\"><h3>Procurando por solu\u00e7\u00f5es de economia de energia ativadas por movimento?<\/h3><p>Entre em contato conosco para sensores de movimento PIR completos, produtos de economia de energia ativados por movimento, interruptores de sensor de movimento e solu\u00e7\u00f5es comerciais de Ocupa\u00e7\u00e3o\/Vac\u00e2ncia.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>Enviar um E-mail<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/pt_br\/contato\"><p>Formul\u00e1rio de contato<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Chat Online<\/p><\/a><\/div><\/div><\/div><\/div><div class=\"wp-block-group glossary_faqs\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions\">Perguntas Frequentes<\/h2>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-what-causes-electrical-harmonics\">O que Causa Harm\u00f4nicos El\u00e9tricos<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Harm\u00f4nicos ocorrem quando h\u00e1 cargas n\u00e3o lineares que convertem a tens\u00e3o da linha AC em DC. Esses harm\u00f4nicos entram no sistema el\u00e9trico devido \u00e0 presen\u00e7a de dispositivos eletr\u00f4nicos de comuta\u00e7\u00e3o n\u00e3o lineares, como acionamentos de frequ\u00eancia vari\u00e1vel (VFDs), fontes de alimenta\u00e7\u00e3o de computadores e ilumina\u00e7\u00e3o de alta efici\u00eancia.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-does-led-lighting-cause-harmonics\">A Ilumina\u00e7\u00e3o LED Causa Harm\u00f4nicos<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Com a instala\u00e7\u00e3o de ilumina\u00e7\u00e3o LED, h\u00e1 a possibilidade de distor\u00e7\u00e3o harm\u00f4nica decorrente da carga. Essa distor\u00e7\u00e3o pode levar ao esfor\u00e7o do equipamento e da rede de distribui\u00e7\u00e3o el\u00e9trica, resultando em maiores despesas de manuten\u00e7\u00e3o e tempo de inatividade. \u00c9 importante notar que, \u00e0s vezes, os efeitos do estresse harm\u00f4nico podem n\u00e3o ser evidentes at\u00e9 que haja uma falha completa do equipamento.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-how-does-harmonics-affect-power-quality\">Como os Harm\u00f4nicos Afetam a Qualidade da Energia<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Correntes harm\u00f4nicas t\u00eam um impacto negativo na qualidade da energia ao causar um aumento na corrente r.m.s. nos sistemas el\u00e9tricos. Isso, por sua vez, leva \u00e0 deteriora\u00e7\u00e3o da qualidade da tens\u00e3o de alimenta\u00e7\u00e3o. Al\u00e9m disso, os harm\u00f4nicos exercem estresse na rede el\u00e9trica e podem danificar equipamentos. Eles tamb\u00e9m podem interromper a opera\u00e7\u00e3o normal dos dispositivos e resultar em custos operacionais mais altos.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-how-do-you-check-harmonics-in-a-power-system\">Como voc\u00ea verifica harm\u00f4nicos em um sistema de energia<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Me\u00e7a a distor\u00e7\u00e3o harm\u00f4nica total (THD) usando um medidor de clamp que tenha a capacidade de indicar harm\u00f4nicos. Certifique-se de que a THD para a tens\u00e3o n\u00e3o exceda 5%, enquanto a THD para a corrente pode ser consideravelmente maior. Para obter mais insights sobre a magnitude e o impacto de cada harm\u00f4nico, utilize um analisador de qualidade de energia.<\/p><\/div><\/div><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-group glossary_faq_q\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><h3 class=\"wp-block-heading\" id=\"h-does-harmonics-affect-voltage\">Os harm\u00f4nicos afetam a tens\u00e3o<\/h3><\/div><\/div>\n\n<div class=\"wp-block-group glossary_faq_a\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><p>Tens\u00f5es harm\u00f4nicas, que s\u00e3o produzidas quando correntes harm\u00f4nicas fluem contra a imped\u00e2ncia do harm\u00f4nico, podem resultar em sobretens\u00f5es not\u00e1veis. Essas sobretens\u00f5es t\u00eam sido observadas causando mau funcionamento de equipamentos, sendo os capacitores especialmente vulner\u00e1veis a esses efeitos.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Na ind\u00fastria de ilumina\u00e7\u00e3o, o termo \u201charm\u00f4nico\u201d refere-se a um componente de um sinal peri\u00f3dico distorcido ou n\u00e3o senoidal que possui uma frequ\u00eancia que \u00e9 um m\u00faltiplo inteiro par n\u00e3o zero da frequ\u00eancia fundamental do sinal.<\/p>","protected":false},"author":4,"featured_media":12868,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"lighting industry\", \"idxall\": 1, \"keywordtitlesimi\": 0.7885549306869507, \"keywordslugsimi\": 0.7885549306869507, \"paratitlesimi\": 0.6529279321432114, \"paraslugsimi\": 0.6529279321432114, \"slug\": \"tips-for-increasing-the-efficiency-of-commercial-lighting\", \"title\": \"Tips for Increasing the Efficiency of Commercial Lighting\", \"id\": 10327}, {\"keyword\": \"60 Hz\", \"idxall\": 0, \"keywordtitlesimi\": 0.7806369662284851, \"keywordslugsimi\": 0.7707458734512329, \"paratitlesimi\": 0.6719734072685242, \"paraslugsimi\": 0.6530662775039673, \"slug\": \"what-is-hertz-hz\", \"title\": \"What is Hertz (Hz)\", \"id\": 14300}]","article_topic":"","article_fact_check":"","mt_social_share":"","mt_content_meta":"","mt_glossary_display":"","glossary_heading":"","glossary":"harmonic","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-14104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Harmonic - Rayzeek<\/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.rayzeek.com\/pt_br\/glossario\/o-que-e-harmonico\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Harmonic - Rayzeek\" \/>\n<meta property=\"og:description\" content=\"In the lighting industry, the term &#8220;harmonic&#8221; refers to a component of a distorted or non-sinusoidal periodic signal that has a frequency that is a non-zero even integer multiple of the fundamental frequency of the signal.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rayzeek.com\/pt_br\/glossario\/o-que-e-harmonico\" \/>\n<meta property=\"og:site_name\" content=\"Rayzeek\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/bester001\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/bester001\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-18T00:07:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-26T08:44:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Horace He\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@RayzeekTech\" \/>\n<meta name=\"twitter:site\" content=\"@RayzeekTech\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Horace He\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\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.rayzeek.com\/glossary\/what-is-harmonic#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic\"},\"author\":{\"name\":\"Horace He\",\"@id\":\"https:\/\/www.rayzeek.com\/#\/schema\/person\/ff0b4bd6573444e02efc8613274549c4\"},\"headline\":\"What is Harmonic\",\"datePublished\":\"2023-09-18T00:07:52+00:00\",\"dateModified\":\"2023-12-26T08:44:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic\"},\"wordCount\":544,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.rayzeek.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"keywords\":[\"glossary\"],\"articleSection\":[\"glossary\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic\",\"url\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic\",\"name\":\"What is Harmonic - Rayzeek\",\"isPartOf\":{\"@id\":\"https:\/\/www.rayzeek.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"datePublished\":\"2023-09-18T00:07:52+00:00\",\"dateModified\":\"2023-12-26T08:44:13+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#primaryimage\",\"url\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"contentUrl\":\"https:\/\/www.rayzeek.com\/wp-content\/uploads\/2023\/06\/rayzeek-glossary-image-10.jpg\",\"width\":1200,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.rayzeek.com\/glossary\/what-is-harmonic#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.rayzeek.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is Harmonic\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.rayzeek.com\/#website\",\"url\":\"https:\/\/www.rayzeek.com\/\",\"name\":\"Rayzeek\",\"description\":\"Motion Sensor &amp; 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