{"id":254,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/stator-defects\/"},"modified":"2026-05-23T22:54:21","modified_gmt":"2026-05-23T22:54:21","slug":"stator-defects","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt\/glossary\/stator-defects\/","title":{"rendered":"O que s\u00e3o defeitos no estator? Falhas no enrolamento de motores."},"content":{"rendered":"<h1>Entendendo os defeitos do estator em motores el\u00e9tricos<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/balanset-1\/\" title=\"Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit completo de balanceador port\u00e1til e analisador de vibra\u00e7\u00f5es\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/balanset-1\/\" title=\"Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es Balanset-1A\">Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adiciona ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Grande plano do sensor de vibra\u00e7\u00e3o Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adiciona ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3tico (tac\u00f3metro laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sensor \u00f3tico (tac\u00f3metro laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3tico (tac\u00f3metro laser)\">Sensor \u00f3tico (tac\u00f3metro laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adiciona ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de balanceamento de rotor Vibromera: estojo de transporte, condicionador de sinal multicanal, analisador port\u00e1til, base magn\u00e9tica, sensores de vibra\u00e7\u00e3o e cabos espiralados.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adiciona ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/magnet-stand\/\" title=\"Suporte magn\u00e9tico Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Base magn\u00e9tica.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/magnet-stand\/\" title=\"Suporte magn\u00e9tico Insize-60-kgf\">Suporte magn\u00e9tico Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adiciona ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/reflective-tape\/\" title=\"Fita refletora\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Fita refletora\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/reflective-tape\/\" title=\"Fita refletora\">Fita refletora<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adiciona ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Conte\u00fado do kit Balanset-1A com unidade de interface, sensores, tac\u00f3metro e acess\u00f3rios\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">Balanceador din\u00e2mico \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt\/wp-json\/wp\/v2\/glossary\/254?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adiciona ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Defeitos no estator<\/strong> s\u00e3o avarias nos enrolamentos estacion\u00e1rios e no n\u00facleo de um motor el\u00e9trico: degrada\u00e7\u00e3o do isolamento, curto-circuitos entre espiras, avarias entre fases, avarias \u00e0 terra, contamina\u00e7\u00e3o dos enrolamentos e danos nas lamina\u00e7\u00f5es. Constituem um modo de falha importante \u2014 as avarias nos enrolamentos do estator representam cerca de 30\u201340% de todas as avarias em motores, tornando-as a segunda causa mais comum ap\u00f3s <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bearing-defects\/\">falhas de rolamentos<\/a>. Um estator com avaria perturba a simetria magn\u00e9tica do motor, e essa assimetria manifesta-se mecanicamente como <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> no <strong>o dobro da frequ\u00eancia de rede<\/strong> (120 Hz em redes de 60 Hz, 100 Hz em redes de 50 Hz), bem como eletricamente atrav\u00e9s de desequil\u00edbrio de corrente, em imagens t\u00e9rmicas e em testes de resist\u00eancia de isolamento.<\/p>\n<p>Compreender os defeitos do estator \u00e9 importante porque habitualmente se desenvolvem de forma lenta \u2014 ao longo de meses ou anos \u2014 o que oferece uma oportunidade consider\u00e1vel para dete\u00e7\u00e3o precoce; contudo, se n\u00e3o forem tratados, podem evoluir para uma queima catastr\u00f3fica envolvendo inc\u00eandio, danos extensos no motor ou um s\u00e9rio risco de seguran\u00e7a. Situam-se ao lado dos problemas do lado do rotor abordados em <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/electrical-faults\/\">defeitos el\u00e9tricos<\/a> e da fam\u00edlia mais ampla de <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/motor-defects\/\">motor defects<\/a>.<\/p>\n<h2>1. Tipos de Defeito no Estator<\/h2>\n<h3>Falhas de isolamento<\/h3>\n<p>A maior categoria individual, e quase sempre onde os problemas no estator t\u00eam in\u00edcio.<\/p>\n<ul>\n<li><strong>Curto-circuitos entre espiras:<\/strong> o isolamento entre espiras adjacentes da mesma bobine falha. As espiras em curto-circuito passam a conduzir corrente de circula\u00e7\u00e3o excessiva e criam um ponto quente localizado. A avaria come\u00e7a de forma pequena e envolve progressivamente mais espiras; \u00e9 detetada por desequil\u00edbrio de corrente, pontos quentes t\u00e9rmicos e vibra\u00e7\u00e3o 2\u00d7f elevada \u2014 e \u00e9 respons\u00e1vel pela maioria das avarias no estator.<\/li>\n<li><strong>Avarias entre fases:<\/strong> o isolamento entre diferentes fases degrada-se. Esta situa\u00e7\u00e3o \u00e9 mais grave do que um curto-circuito entre espiras e pode provocar um disparo imediato ou danos s\u00e9rios, manifestando-se tipicamente como um grande desequil\u00edbrio de corrente que pode acionar a prote\u00e7\u00e3o de sobrecorrente.<\/li>\n<li><strong>Avarias \u00e0 terra (fase-carca\u00e7a):<\/strong> o isolamento entre o enrolamento e a carca\u00e7a falha. Trata-se de um problema de seguran\u00e7a, pois pode colocar a carca\u00e7a do motor em tens\u00e3o e criar um risco de choque el\u00e9trico. \u00c9 detetado pela prote\u00e7\u00e3o de defeito \u00e0 terra e por testes de resist\u00eancia de isolamento, sendo habitualmente provocado por envelhecimento do isolamento, contamina\u00e7\u00e3o, danos mec\u00e2nicos ou humidade.<\/li>\n<\/ul>\n<h3>Danos f\u00edsicos no enrolamento<\/h3>\n<ul>\n<li><strong>Danos mec\u00e2nicos:<\/strong> bobinas danificadas durante a instala\u00e7\u00e3o ou manuten\u00e7\u00e3o.<\/li>\n<li><strong>Danos t\u00e9rmicos:<\/strong> sobreaquecimento que degrada tanto o isolamento como o cobre.<\/li>\n<li><strong>Contamina\u00e7\u00e3o:<\/strong> \u00f3leo, produtos qu\u00edmicos ou poeira condutora nos enrolamentos.<\/li>\n<li><strong>Danos por humidade:<\/strong> infiltra\u00e7\u00e3o de \u00e1gua que provoca rastejamento superficial e curto-circuitos.<\/li>\n<li><strong>Dano por efeito corona:<\/strong> alta tens\u00e3o a ionizar o ar circundante e a erodir o isolamento.<\/li>\n<\/ul>\n<h3>Problemas de lamina\u00e7\u00e3o<\/h3>\n<ul>\n<li>Lamina\u00e7\u00f5es do n\u00facleo em curto-circuito entre si, reduzindo a efici\u00eancia e causando aquecimento.<\/li>\n<li>Lamina\u00e7\u00f5es danificadas ou soltas.<\/li>\n<li>Deslocamento ou deslizamento do n\u00facleo, o que pode perturbar o <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/air-gap\/\">entreferro<\/a>.<\/li>\n<li>O resultado s\u00e3o maiores perdas por correntes parasitas e pontos quentes localizados.<\/li>\n<\/ul>\n<h2>2. Causas de Falha do Estator<\/h2>\n<h3>Degrada\u00e7\u00e3o t\u00e9rmica<\/h3>\n<ul>\n<li><strong>Sobrecarga:<\/strong> corrente excessiva aquece os enrolamentos para al\u00e9m da sua classifica\u00e7\u00e3o de isolamento.<\/li>\n<li><strong>Arrefecimento bloqueado:<\/strong> a fraca ventila\u00e7\u00e3o acelera o envelhecimento t\u00e9rmico.<\/li>\n<li><strong>Temperatura ambiente elevada:<\/strong> reduz a efic\u00e1cia do arrefecimento.<\/li>\n<li><strong>Arranques frequentes:<\/strong> correntes de arranque repetidas imp\u00f5em tens\u00e3o t\u00e9rmica.<\/li>\n<li><strong>Vida \u00fatil do isolamento:<\/strong> como regra geral, cada 10 \u00b0C acima da temperatura nominal reduz para metade a vida \u00fatil do isolamento.<\/li>\n<\/ul>\n<h3>Tens\u00f5es el\u00e9tricas<\/h3>\n<ul>\n<li><strong>Sobretens\u00f5es:<\/strong> descargas atmosf\u00e9ricas e transit\u00f3rios de comuta\u00e7\u00e3o solicitam o isolamento.<\/li>\n<li><strong>Desequil\u00edbrio de tens\u00e3o:<\/strong> tens\u00f5es de fase desiguais provocam correntes circulantes \u2014 estreitamente ligadas ao <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/electrical-unbalance\/\">desequil\u00edbrio el\u00e9trico<\/a>.<\/li>\n<li><strong>Over-voltage:<\/strong> funcionamento acima da tens\u00e3o nominal.<\/li>\n<li><strong>VFD effects:<\/strong> o elevado dV\/dt da comuta\u00e7\u00e3o PWM ataca o isolamento, especialmente as primeiras espiras de uma bobina.<\/li>\n<\/ul>\n<h3>Contamina\u00e7\u00e3o e ambiente<\/h3>\n<ul>\n<li><strong>Humidade:<\/strong> a humidade ou a entrada de \u00e1gua reduz a resist\u00eancia de isolamento.<\/li>\n<li><strong>Poeira condutora:<\/strong> part\u00edculas met\u00e1licas ou poeira de carbono fazem ponte sobre o isolamento.<\/li>\n<li><strong>Produtos qu\u00edmicos:<\/strong> vapores corrosivos ou de solventes atacam o sistema de isolamento.<\/li>\n<li><strong>\u00d3leo e massa lubrificante:<\/strong> os produtos petrol\u00edferos degradam o isolamento org\u00e2nico.<\/li>\n<\/ul>\n<h3>Causas mec\u00e2nicas<\/h3>\n<ul>\n<li><strong>Vibra\u00e7\u00e3o:<\/strong> vibra\u00e7\u00f5es excessivas desgastam o isolamento por abras\u00e3o.<\/li>\n<li><strong>Ciclo t\u00e9rmico:<\/strong> expans\u00f5es e contra\u00e7\u00f5es repetidas flectem e fisuram o isolamento.<\/li>\n<li><strong>Rotor strikes:<\/strong> o contacto do rotor danifica fisicamente as bobinagens.<\/li>\n<li><strong>Danos na instala\u00e7\u00e3o:<\/strong> manuseamento brusco durante a rebobinagem ou substitui\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>3. A assinatura de vibra\u00e7\u00e3o<\/h2>\n<h3>Indicador prim\u00e1rio: o dobro da frequ\u00eancia de linha<\/h3>\n<p>A caracter\u00edstica distintiva de um problema no estator \u00e9 a presen\u00e7a de energia ao dobro da frequ\u00eancia de alimenta\u00e7\u00e3o el\u00e9trica:<\/p>\n<ul>\n<li><strong>Frequ\u00eancia:<\/strong> 120 Hz em sistemas a 60 Hz, 100 Hz em sistemas a 50 Hz &mdash; um m\u00faltiplo da <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/electrical-frequency\/\">frequ\u00eancia el\u00e9trica<\/a>, e n\u00e3o da velocidade do veio.<\/li>\n<li><strong>Mecanismo:<\/strong> um campo magn\u00e9tico assim\u00e9trico produz uma for\u00e7a eletromagn\u00e9tica desequilibrada, uma forma de <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/magnetic-pull\/\">atra\u00e7\u00e3o magn\u00e9tica<\/a> que pulsa ao dobro da frequ\u00eancia de linha.<\/li>\n<li><strong>Motores em bom estado:<\/strong> uma componente 2\u00d7f est\u00e1 sempre presente, mas \u00e9 pequena (inferior a ~10% de 1\u00d7).<\/li>\n<li><strong>Defeitos no estator:<\/strong> a amplitude de 2\u00d7f \u00e9 elevada (acima de ~20\u201350% de 1\u00d7, por vezes muito superior).<\/li>\n<li><strong>Progress\u00e3o:<\/strong> a amplitude aumenta \u00e0 medida que a avaria se agrava.<\/li>\n<\/ul>\n<p>Um ensaio pr\u00e1tico permite distinguir um 2\u00d7f magn\u00e9tico de um mec\u00e2nico: corte a alimenta\u00e7\u00e3o. Uma componente puramente eletromagn\u00e9tica desaparece instantaneamente quando a alimenta\u00e7\u00e3o \u00e9 removida, ao passo que uma <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/running-speed\/\">velocidade de funcionamento<\/a> harm\u00f3nica decai apenas \u00e0 medida que o rotor desacelera por in\u00e9rcia.<\/p>\n<h3>Componentes adicionais<\/h3>\n<ul>\n<li>A componente \u00e0 frequ\u00eancia de linha (1\u00d7f) pode aumentar.<\/li>\n<li>Mais alto <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/harmonics\/\">harm\u00f3nicos<\/a> (4\u00d7f, 6\u00d7f) podem surgir.<\/li>\n<li>O n\u00edvel global de vibra\u00e7\u00e3o pode aumentar.<\/li>\n<li>A for\u00e7a eletromagn\u00e9tica \u00e9 frequentemente aud\u00edvel como um zumbido de 120\/100 Hz.<\/li>\n<\/ul>\n<h2>4. M\u00e9todos de dete\u00e7\u00e3o<\/h2>\n<h3>An\u00e1lise de vibra\u00e7\u00e3o<\/h3>\n<ul>\n<li>Monitorize a amplitude da frequ\u00eancia de 2\u00d7 a linha e acompanhe a sua tend\u00eancia ao longo do tempo.<\/li>\n<li>Compare com um <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/baseline\/\">linha de base<\/a> ou com motores semelhantes.<\/li>\n<li>Emita um alerta quando 2\u00d7f exceder aproximadamente 30% da vibra\u00e7\u00e3o de 1\u00d7 \u00e0 velocidade de funcionamento.<\/li>\n<li>Uma tend\u00eancia crescente confirma uma avaria progressiva e n\u00e3o uma caracter\u00edstica de projeto fixada.<\/li>\n<\/ul>\n<h3>Medi\u00e7\u00f5es de corrente<\/h3>\n<ul>\n<li><strong>Equil\u00edbrio de corrente de fase:<\/strong> me\u00e7a a corrente em cada fase.<\/li>\n<li><strong>Desequil\u00edbrio acima de ~10%:<\/strong> indica um problema no enrolamento.<\/li>\n<li><strong>Alicate amper\u00edmetro:<\/strong> uma medi\u00e7\u00e3o simples em campo.<\/li>\n<li><strong>Analisador de qualidade de energia:<\/strong> an\u00e1lise detalhada da forma de onda de corrente, complementando o trabalho de an\u00e1lise da assinatura de corrente do motor utilizado para encontrar <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/broken-rotor-bars\/\">barras do rotor quebradas<\/a>.<\/li>\n<\/ul>\n<h3>Ensaio de resist\u00eancia de isolamento<\/h3>\n<ul>\n<li><strong>Meg\u00f3hmetro (Megger):<\/strong> me\u00e7a a resist\u00eancia de isolamento enrolamento-terra.<\/li>\n<li><strong>Aceita\u00e7\u00e3o:<\/strong> tipicamente acima de 1 M\u03a9 por kV com um m\u00ednimo absoluto de 1 M\u03a9.<\/li>\n<li><strong>Tend\u00eancias:<\/strong> valores em queda indicam deteriora\u00e7\u00e3o.<\/li>\n<li><strong>\u00cdndice de Polariza\u00e7\u00e3o:<\/strong> o r\u00e1cio entre a leitura aos 10 minutos e a leitura ao 1 minuto (acima de 2,0 \u00e9 bom, abaixo de 2,0 \u00e9 suspeito).<\/li>\n<\/ul>\n<p>Como o limiar de aprova\u00e7\u00e3o\/reprova\u00e7\u00e3o varia com a tens\u00e3o nominal e a temperatura, um <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/insulation-resistance-calculator\/\">Interpretador de Resist\u00eancia de Isolamento (Megger)<\/a> \u00e9 \u00fatil para converter uma leitura bruta num veredicto IEEE 43.<\/p>\n<h3>Termografia<\/h3>\n<ul>\n<li>Uma c\u00e2mara de infravermelhos revela pontos quentes na carca\u00e7a do motor.<\/li>\n<li>O aquecimento localizado indica a localiza\u00e7\u00e3o da avaria no enrolamento.<\/li>\n<li>Um desequil\u00edbrio de temperatura entre fases \u00e9, por si s\u00f3, um sintoma.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/thermography\/\">Termografia<\/a> pode detetar avarias em desenvolvimento antes de os testes el\u00e9tricos as sinalizarem.<\/li>\n<\/ul>\n<h3>Surge testing<\/h3>\n<ul>\n<li>Aplica um impulso de tens\u00e3o e compara as respostas de fase.<\/li>\n<li>Deteta curtos-circuitos espira-a-espira invis\u00edveis para outros testes.<\/li>\n<li>Requer equipamento especializado.<\/li>\n<li>Utilizado frequentemente em oficinas de motores para verifica\u00e7\u00e3o de qualidade ap\u00f3s rebobinagem.<\/li>\n<\/ul>\n<h2>5. Progress\u00e3o e Consequ\u00eancias<\/h2>\n<p>As avarias no estator progridem por etapas reconhec\u00edveis, o que \u00e9 precisamente o que torna um <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/condition-monitoring\/\">monitoriza\u00e7\u00e3o do estado<\/a> programa t\u00e3o eficaz contra eles:<\/p>\n<ul>\n<li><strong>Early stage:<\/strong> uma ligeira queda na resist\u00eancia de isolamento, um pequeno desequil\u00edbrio de corrente (inferior a 5%) e um aumento t\u00e9nue da vibra\u00e7\u00e3o a 2\u00d7f \u2014 detet\u00e1vel apenas com ensaios de alta sensibilidade.<\/li>\n<li><strong>Fase moderada:<\/strong> um desequil\u00edbrio de corrente evidente (5\u201315%), vibra\u00e7\u00e3o a 2\u00d7f elevada (20\u201350% de 1\u00d7), pontos quentes vis\u00edveis na termografia, e resist\u00eancia de isolamento em decl\u00ednio.<\/li>\n<li><strong>Fase avan\u00e7ada:<\/strong> um desequil\u00edbrio de corrente acentuado (superior a 15%), vibra\u00e7\u00e3o a 2\u00d7f muito elevada, sobreaquecimento \u00f3bvio, resist\u00eancia de isolamento baixa e risco real de avaria iminente.<\/li>\n<li><strong>Falha catastr\u00f3fica:<\/strong> queima total do enrolamento, poss\u00edvel inc\u00eandio ou fumo, disparo de prote\u00e7\u00e3o ou fus\u00edvel queimado, e danos extensos que exigem reembobinagem ou substitui\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>6. A\u00e7\u00f5es corretivas<\/h2>\n<p><strong>Ap\u00f3s a dete\u00e7\u00e3o,<\/strong> aumente a frequ\u00eancia de monitoriza\u00e7\u00e3o em fun\u00e7\u00e3o da gravidade, reduza a solicita\u00e7\u00e3o operacional sempre que poss\u00edvel (carga ou ciclo de trabalho mais baixos), planeie a reembobinagem ou substitui\u00e7\u00e3o e investigue a causa raiz para evitar a recorr\u00eancia.<\/p>\n<p><strong>Repair options<\/strong> dependem em grande medida da dimens\u00e3o do motor:<\/p>\n<ul>\n<li><strong>Reembobinagem do motor:<\/strong> substitui\u00e7\u00e3o dos enrolamentos do estator \u2014 tipicamente econ\u00f3mica em motores grandes (acima de ~100 HP).<\/li>\n<li><strong>Substitui\u00e7\u00e3o do motor:<\/strong> geralmente mais econ\u00f3mico para motores pequenos (abaixo de ~50 HP).<\/li>\n<li><strong>Substitui\u00e7\u00e3o de bobinas:<\/strong> poss\u00edvel em alguns modelos, com substitui\u00e7\u00e3o de bobinas individuais.<\/li>\n<li><strong>Opera\u00e7\u00e3o tempor\u00e1ria:<\/strong> uma falha em fase inicial pode permitir a continua\u00e7\u00e3o do funcionamento sob monitoriza\u00e7\u00e3o atenta enquanto se obt\u00e9m uma unidade de substitui\u00e7\u00e3o.<\/li>\n<\/ul>\n<p><strong>Preven\u00e7\u00e3o<\/strong> consiste essencialmente em manter-se dentro dos limites de projeto: operar dentro da tens\u00e3o, corrente e temperatura nominais; assegurar ventila\u00e7\u00e3o e arrefecimento adequados; proteger os enrolamentos de contamina\u00e7\u00e3o com envolventes e veda\u00e7\u00f5es apropriadas; instalar prote\u00e7\u00e3o contra sobretens\u00f5es transit\u00f3rias em motores cr\u00edticos; realizar ensaios peri\u00f3dicos de isolamento (anualmente para m\u00e1quinas cr\u00edticas); e efetuar inspe\u00e7\u00f5es termogr\u00e1ficas para detetar pontos quentes em desenvolvimento.<\/p>\n<h2>7. O Papel das Ferramentas de Vibra\u00e7\u00e3o<\/h2>\n<p>Como o sintoma caracter\u00edstico de uma falha no estator \u00e9 mec\u00e2nico \u2014 essa vibra\u00e7\u00e3o elevada ao dobro da frequ\u00eancia da rede \u2014 um analisador port\u00e1til \u00e9 uma ferramenta de primeira linha para triagem. Em campo, os t\u00e9cnicos instalam um <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/accelerometer\/\">aceler\u00f3metro<\/a> no motor e utilizam o <a href=\"https:\/\/vibromera.eu\/pt\/produto\/balanset-1\/\">Balanset-1A<\/a> to capture the <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/spectrum\/\">espetro de vibra\u00e7\u00e3o<\/a>, leem a amplitude da linha de 100\/120 Hz e acompanham a sua evolu\u00e7\u00e3o face \u00e0 linha de base do motor. O ensaio com corte de alimenta\u00e7\u00e3o confirma ent\u00e3o se o pico \u00e9 de origem eletromagn\u00e9tica. Para converter os dados da placa de caracter\u00edsticas nas frequ\u00eancias de diagn\u00f3stico exatas a monitorizar, o <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/motor-electrical-frequencies\/\">Calculadora de Frequ\u00eancia de Defeitos El\u00e9tricos em Motores<\/a> apresenta os termos de frequ\u00eancia de rede, escorregamento e passagem de polos.<\/p>\n<p>Utilizados em conjunto &mdash; monitoriza\u00e7\u00e3o de vibra\u00e7\u00e3o a 2\u00d7 a frequ\u00eancia de rede, <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/fft\/\">FFT<\/a> an\u00e1lise de corrente, termografia e ensaios el\u00e9tricos peri\u00f3dicos \u2014 estes m\u00e9todos detetam a grande maioria das falhas no estator enquanto ainda s\u00e3o econ\u00f3micas de corrigir. Compreender o percurso desde a degrada\u00e7\u00e3o ligeira do isolamento at\u00e9 \u00e0 queima catastr\u00f3fica \u00e9 o que permite a uma equipa de manuten\u00e7\u00e3o intervir no momento certo e tomar uma decis\u00e3o fundamentada entre reembobinar ou substituir.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/\">\u2190 Voltar ao \u00edndice principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Saiba mais sobre defeitos no estator, incluindo falhas de isolamento, curtos-circuitos entre espiras e danos no enrolamento, que causam vibra\u00e7\u00e3o com o dobro da frequ\u00eancia da rede el\u00e9trica e s\u00e3o detect\u00e1veis por meio de an\u00e1lises de corrente e t\u00e9rmicas.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-254","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/254\/revisions"}],"predecessor-version":[{"id":101412,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/254\/revisions\/101412"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/media?parent=254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/categories?post=254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/tags?post=254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}