{"id":2241,"date":"2024-10-27T05:58:28","date_gmt":"2024-10-27T05:58:28","guid":{"rendered":"https:\/\/www.jy-electric.com\/?p=2241"},"modified":"2025-04-04T10:37:53","modified_gmt":"2025-04-04T10:37:53","slug":"difference-between-air-circuit-breaker-and-vacuum-circuit-breaker","status":"publish","type":"post","link":"https:\/\/www.jyiele.com\/pt\/difference-between-air-circuit-breaker-and-vacuum-circuit-breaker\/","title":{"rendered":"Diferen\u00e7a entre o disjuntor a ar e o disjuntor a v\u00e1cuo"},"content":{"rendered":"

Meio de resfriamento de arco<\/strong><\/strong><\/h2>\n\n\n\n

Disjuntor a ar (ACB): No caso de uma falha ou no momento do desligamento, o meio de extin\u00e7\u00e3o do arco \u00e9 o ar \u00e0 press\u00e3o atmosf\u00e9rica. O arco se resfria devido ao ar presente ao seu redor.<\/p>\n\n\n\n

Disjuntor a v\u00e1cuo (VCB): Um alto v\u00e1cuo \u00e9 usado como meio de extin\u00e7\u00e3o de arco nesse tipo de disjuntor. Um arco \u00e9 extinto em uma c\u00e2mara de v\u00e1cuo, onde a aus\u00eancia de part\u00edculas facilita a r\u00e1pida supress\u00e3o do arco.<\/p>\n\n\n\n

M\u00e9todo de resfriamento a arco<\/strong><\/strong><\/h2>\n\n\n\n

ACB: depende de sopro de ar ou sopro magn\u00e9tico para alongamento e resfriamento do arco. Normalmente, tamb\u00e9m \u00e9 fornecido com contatos met\u00e1licos e calhas de arco para guiar o arco e controlar a energia do arco.<\/p>\n\n\n\n

VCB: quando os contatos se abrem, forma-se um pequeno arco. Esse arco, no v\u00e1cuo, \u00e9 rapidamente extinto devido \u00e0 condensa\u00e7\u00e3o do vapor de metal que auxilia na r\u00e1pida extin\u00e7\u00e3o de um arco sem mecanismos auxiliares de resfriamento.<\/p>\n\n\n\n

Aplicativos<\/strong><\/strong><\/h2>\n\n\n\n

ACBs: S\u00e3o normalmente destinados a aplica\u00e7\u00f5es que envolvem baixa tens\u00e3o, geralmente at\u00e9 cerca de 1 kV, e, portanto, s\u00e3o usados em edif\u00edcios comerciais e industriais, quadros de pain\u00e9is e outros sistemas de baixa tens\u00e3o.<\/p>\n\n\n\n

VCB: s\u00e3o aplicados principalmente em tens\u00f5es m\u00e9dias de at\u00e9 36 kV ou mais. \u00c9 muito ideal para subesta\u00e7\u00f5es, plantas industriais e sistemas cr\u00edticos que exigem interrup\u00e7\u00e3o de arco confi\u00e1vel.<\/p>\n\n\n\n

Manuten\u00e7\u00e3o<\/strong><\/strong><\/h2>\n\n\n\n

ACB: a manuten\u00e7\u00e3o precisa ser feita com mais frequ\u00eancia, pois as pe\u00e7as ficam expostas ao ar, o que pode causar oxida\u00e7\u00e3o e eros\u00e3o dos contatos.<\/p>\n\n\n\n

VCCB: a vida \u00fatil \u00e9 mais longa, pois o v\u00e1cuo interno reduz o desgaste do contato e a contamina\u00e7\u00e3o. Portanto, requer menos manuten\u00e7\u00e3o.<\/p>\n\n\n\n

Confiabilidade e resist\u00eancia<\/strong><\/h2>\n\n\n\n

ACB: n\u00e3o \u00e9 t\u00e3o eficaz na interrup\u00e7\u00e3o de arco em condi\u00e7\u00f5es de alta corrente ou alta tens\u00e3o, pois o meio de ar pode n\u00e3o impedir a reigni\u00e7\u00e3o do arco o tempo todo.<\/p>\n\n\n\n

VCB: muito confi\u00e1vel e robusto para interrup\u00e7\u00e3o de arco, devido \u00e0 efici\u00eancia do v\u00e1cuo para impedir a reigni\u00e7\u00e3o do arco; portanto, adequado para opera\u00e7\u00f5es frequentes.<\/p>\n\n\n\n

Tamanho e custo<\/strong><\/strong><\/h2>\n\n\n\n

ACB: em geral, maior em tamanho e mais econ\u00f4mico em seu custo unit\u00e1rio para aplica\u00e7\u00f5es de baixa tens\u00e3o.<\/p>\n\n\n\n

VCB: mais compacto e econ\u00f4mico em termos de energia, mas geralmente mais caro devido \u00e0 tecnologia de c\u00e2mara de v\u00e1cuo aplicada, e tem sido adequado para sistemas de m\u00e9dia tens\u00e3o.<\/p>\n\n\n\n

Tabela de resumo<\/strong><\/strong><\/h2>\n\n\n\n
Recurso<\/strong><\/strong><\/td>Disjuntor de ar (ACB)<\/strong><\/strong><\/td>Disjuntor a v\u00e1cuo (VCB)<\/strong><\/strong><\/td><\/tr>
Meio de resfriamento de arco<\/strong><\/td>Ar<\/td>V\u00e1cuo<\/td><\/tr>
Aplica\u00e7\u00e3o de tens\u00e3o<\/strong><\/td>Baixa tens\u00e3o (at\u00e9 1 kV)<\/td>M\u00e9dia tens\u00e3o (at\u00e9 36 kV ou mais)<\/td><\/tr>
Manuten\u00e7\u00e3o<\/strong><\/td>Requer manuten\u00e7\u00e3o frequente<\/td>Baixa manuten\u00e7\u00e3o<\/td><\/tr>
Durabilidade<\/strong><\/td>Adequado para uso limitado em interrup\u00e7\u00e3o de arco<\/td>Altamente confi\u00e1vel e dur\u00e1vel<\/td><\/tr>
Tamanho e custo<\/strong><\/td>Maior e mais econ\u00f4mico<\/td>Compacto, mas mais caro<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Essas diferen\u00e7as destacam por que os ACBs s\u00e3o frequentemente escolhidos para aplica\u00e7\u00f5es de baixa tens\u00e3o, enquanto os VCBs s\u00e3o preferidos para aplica\u00e7\u00f5es de m\u00e9dia tens\u00e3o, em que a durabilidade e a confiabilidade s\u00e3o fundamentais.<\/p>","protected":false},"excerpt":{"rendered":"

Meio de extin\u00e7\u00e3o de arco Disjuntor a ar (ACB): No caso de uma falha ou no momento do desligamento, o meio de extin\u00e7\u00e3o do arco \u00e9 o ar \u00e0 press\u00e3o atmosf\u00e9rica. O arco se resfria devido ao ar presente ao seu redor. Disjuntor a v\u00e1cuo (VCB): Um alto v\u00e1cuo \u00e9 usado como meio de extin\u00e7\u00e3o de arco no [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-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":"","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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[37],"tags":[],"class_list":["post-2241","post","type-post","status-publish","format-standard","hentry","category-vcb"],"yoast_head":"\nDifference Between Air Circuit Breaker and Vacuum Circuit Breaker - JYIELE<\/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.jyiele.com\/pt\/difference-between-air-circuit-breaker-and-vacuum-circuit-breaker\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Difference Between Air Circuit Breaker and Vacuum Circuit Breaker - JYIELE\" \/>\n<meta property=\"og:description\" content=\"Arc Quenching Medium Air Circuit Breaker (ACB): In the case of a fault or at the time of switching off, the medium of arc extinction is air at atmospheric pressure. 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