{"id":65268,"date":"2024-07-30T12:05:15","date_gmt":"2024-07-30T10:05:15","guid":{"rendered":"https:\/\/grupoalava.rearmachine.com\/parametros-de-monitorizacao-de-grandes-maquinas-eletricas\/"},"modified":"2024-07-30T12:05:15","modified_gmt":"2024-07-30T10:05:15","slug":"parametros-de-monitorizacao-de-grandes-maquinas-eletricas","status":"publish","type":"post","link":"https:\/\/grupoalava.rearmachine.com\/pt\/preditec\/parametros-de-monitorizacao-de-grandes-maquinas-eletricas\/","title":{"rendered":"Par\u00e2metros de monitoriza\u00e7\u00e3o de grandes m\u00e1quinas el\u00e9tricas"},"content":{"rendered":"<p>A import\u00e2ncia cr\u00edtica das grandes m\u00e1quinas el\u00e9tricas justifica a monitoriza\u00e7\u00e3o cont\u00ednua atrav\u00e9s de v\u00e1rias t\u00e9cnicas que se complementam entre si.<\/p>\n<p>As t\u00e9cnicas preditivas aplic\u00e1veis a grandes m\u00e1quinas el\u00e9tricas s\u00e3o um dos cap\u00edtulos em que os investigadores est\u00e3o a dedicar mais aten\u00e7\u00e3o para desenvolver tecnologias preditivas f\u00e1ceis de aplicar e com capacidades de diagn\u00f3stico mais fi\u00e1veis:<\/p>\n<ul>\n<li>Entreferro. O controlo da folga entre os p\u00f3los em funcionamento \u00e9 uma t\u00e9cnica de medi\u00e7\u00e3o que usa sensores capacitivos imunes \u00e0 indu\u00e7\u00e3o de correntes de Foucault. Esta tecnologia existe h\u00e1 cerca de 10 anos e j\u00e1 h\u00e1 mais de 400 instala\u00e7\u00f5es \u00abon-line\u00bb em alternadores hidr\u00e1ulicos e turbinas de grande porte.  <\/li>\n<li>Fluxo de entreferro. \u00c9 um sistema de medi\u00e7\u00e3o indutivo para detetar problemas de excentricidade em turboalternadores e curto-circuitos nas espiras em m\u00e1quinas de p\u00f3los salientes. <\/li>\n<li>Vibra\u00e7\u00f5es nas barras do estator (SBV). Com base em sensores capacitivos, esta t\u00e9cnica monitoriza a vibra\u00e7\u00e3o das barras no interior da ranhura do n\u00facleo de ferro dos alternadores, para evitar o descolamento por fadiga. <\/li>\n<li>Vibra\u00e7\u00f5es na cabe\u00e7a da bobina (EWV). Esta t\u00e9cnica utiliza aceler\u00f3metros de fibra \u00f3tica para o controlo preditivo das vibra\u00e7\u00f5es nas cabe\u00e7as das bobinas, com o objetivo de prevenir a degrada\u00e7\u00e3o do isolamento devido \u00e0 fadiga e a consequente descarga el\u00e9trica. <\/li>\n<\/ul>\n<p>Entra em contacto com um dos nossos engenheiros especializados em manuten\u00e7\u00e3o preditiva para que te aconselhe sobre os par\u00e2metros de monitoriza\u00e7\u00e3o de grandes m\u00e1quinas el\u00e9tricas: <a href=\"https:\/\/www.preditec.com\/mantenimiento-predictivo\/supervision-grandes-maquina\/#\">info@preditec.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A import\u00e2ncia cr\u00edtica das grandes m\u00e1quinas el\u00e9tricas justifica a monitoriza\u00e7\u00e3o  [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":65269,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8508,8516,8574],"tags":[8550],"class_list":["post-65268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-preditec","category-conhecimento","category-parametros-de-monitorizacao-de-grandes-maquinas-eletricas","tag-artigos-especializados"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - 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