{"id":111,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/electrical-frequency\/"},"modified":"2026-05-23T22:42:52","modified_gmt":"2026-05-23T22:42:52","slug":"electrical-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/electrical-frequency\/","title":{"rendered":"O que \u00e9 Frequ\u00eancia El\u00e9trica? Frequ\u00eancia de Linha em Motores"},"content":{"rendered":"<h1>Compreendendo a Frequ\u00eancia El\u00e9trica em Motores<\/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-br\/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-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer 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 full kit portable balancer and vibration analyzer\" 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-br\/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-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">Balanceador port\u00e1til &#038; Analisador de vibra\u00e7\u00e3o 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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/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=\"Balanset-1A vibration sensor close-up\" 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-br\/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-br\/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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a 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 \u00d3ptico (Tac\u00f4metro a 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-br\/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-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">Sensor \u00d3ptico (Tac\u00f4metro a 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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/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=\"Vibromera rotor balancing kit: carry case, multi-channel signal conditioner, handheld analyzer, magnetic base, vibration sensors, and coiled cables.\" 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-br\/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-br\/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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/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=\"Magnet base.\" 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-br\/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-br\/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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">\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 refletiva\" 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-br\/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-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">Fita refletiva<\/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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d 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=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" 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-br\/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-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">Balanceador din\u00e2mico \u201cBalanset-1A\u201d 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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/111?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/111?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=\"Adicione 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 ao carrinho<\/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>Frequ\u00eancia el\u00e9trica<\/strong> \u2014 tamb\u00e9m chamada de frequ\u00eancia de linha, frequ\u00eancia da rede ou frequ\u00eancia de pot\u00eancia \u2014 \u00e9 a frequ\u00eancia da corrente alternada fornecida a motores el\u00e9tricos e outros equipamentos el\u00e9tricos. Dois padr\u00f5es dominam mundialmente: 60 Hz na Am\u00e9rica do Norte, partes da Am\u00e9rica do Sul e alguns pa\u00edses asi\u00e1ticos, e 50 Hz na Europa, maior parte da \u00c1sia, \u00c1frica e Austr\u00e1lia. Este \u00fanico n\u00famero define a velocidade s\u00edncrona de todos os motores CA na rede e gera uma fam\u00edlia de for\u00e7as eletromagn\u00e9ticas \u2014 e, portanto, <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> componentes \u2014 em m\u00faltiplos da frequ\u00eancia de linha.<\/p>\n<p>Em motores <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration-analysis\/\">an\u00e1lise de vibra\u00e7\u00e3o<\/a>, a frequ\u00eancia de linha e seus harm\u00f4nicos, especialmente o dobro da frequ\u00eancia de linha (2\u00d7f), s\u00e3o indicadores diagn\u00f3sticos-chave para problemas eletromagn\u00e9ticos, falhas no estator e irregularidades no entreferro. Interpret\u00e1-los corretamente \u00e9 o que permite ao analista distinguir uma falha el\u00e9trica de uma mec\u00e2nica no mesmo <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/spectrum\/\">espectro<\/a>.<\/p>\n<h2>1. Rela\u00e7\u00e3o com a Velocidade do Motor<\/h2>\n<h3>Velocidade s\u00edncrona<\/h3>\n<p>Para um motor de indu\u00e7\u00e3o CA, a velocidade s\u00edncrona do campo magn\u00e9tico rotativo \u00e9 fixada pela frequ\u00eancia de linha e pelo n\u00famero de polos:<\/p>\n<blockquote><p>N<sub>s\u00edncrona<\/sub> = (120 \u00d7 f) \/ P&nbsp;&nbsp;\u2014 onde N<sub>s\u00edncrona<\/sub> \u00e9 a velocidade s\u00edncrona em RPM, f \u00e9 a frequ\u00eancia el\u00e9trica em Hz e P \u00e9 o n\u00famero de polos.<\/p><\/blockquote>\n<p>A velocidade real <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/running-speed\/\">velocidade de opera\u00e7\u00e3o<\/a> sempre fica um pouco abaixo da s\u00edncrona porque um rotor de indu\u00e7\u00e3o deve escorregar para desenvolver torque.<\/p>\n<h3>Velocidades comuns de motores<\/h3>\n<p>Em uma <strong>60 Hz<\/strong> fornecimento, as velocidades s\u00edncronas s\u00e3o 3600 RPM para um motor de 2 polos (cerca de 3550 RPM em servi\u00e7o), 1800 RPM para um de 4 polos (cerca de 1750 RPM), 1200 RPM para um de 6 polos (cerca de 1170 RPM) e 900 RPM para um de 8 polos (cerca de 875 RPM). Em um <strong>50 Hz<\/strong> fornecimento, as mesmas contagens de polos resultam em 3000 RPM (cerca de 2950 RPM reais), 1500 RPM (cerca de 1450), 1000 RPM (cerca de 970) e 750 RPM (cerca de 730). O <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/motor-slip-calculator\/\">calculadora de escorregamento do motor e RPM real<\/a> converte uma placa de identifica\u00e7\u00e3o e uma velocidade medida diretamente nesses valores.<\/p>\n<h3>Frequ\u00eancia de escorregamento<\/h3>\n<p>A diferen\u00e7a entre a velocidade s\u00edncrona e a velocidade real define o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/slip-frequency\/\">frequ\u00eancia de deslizamento<\/a>:<\/p>\n<blockquote><p>f<sub>s<\/sub> = (N<sub>s\u00edncrona<\/sub> \u2212 N<sub>real<\/sub>) \/ 60<\/p><\/blockquote>\n<ul>\n<li>O escorregamento t\u00edpico varia de 1 a 5% da velocidade s\u00edncrona.<\/li>\n<li>A frequ\u00eancia de escorregamento resultante \u00e9 geralmente de apenas 1 a 3 Hz.<\/li>\n<li>\u00c9 dependente da carga \u2014 o escorregamento aumenta conforme o motor trabalha mais.<\/li>\n<li>\u00c9 fundamental para diagnosticar defeitos el\u00e9tricos do rotor, pois falhas nas barras do rotor modulam a vibra\u00e7\u00e3o na frequ\u00eancia de passagem de polo, que \u00e9 o escorregamento multiplicado pelo n\u00famero de polos.<\/li>\n<\/ul>\n<h2>2. Componentes de Vibra\u00e7\u00e3o Eletromagn\u00e9tica<\/h2>\n<h3>Duas vezes a frequ\u00eancia da rede (o componente dominante)<\/h3>\n<p>O componente eletromagn\u00e9tico mais importante est\u00e1 em 2\u00d7f \u2014 120 Hz em um fornecimento de 60 Hz, 100 Hz em um fornecimento de 50 Hz. Ele surge porque a atra\u00e7\u00e3o magn\u00e9tica entre o estator e o rotor pulsa duas vezes por ciclo el\u00e9trico. Uma pequena quantidade \u00e9 normal em todos os motores CA, portanto, sua mera presen\u00e7a n\u00e3o \u00e9 um defeito; no entanto, um 2\u00d7f elevado e crescente aponta para <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/stator-defects\/\">problemas no estator<\/a>, um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/air-gap\/\">entreferro<\/a>, ou desequil\u00edbrio magn\u00e9tico.<\/p>\n<h3>Frequ\u00eancia da rede (1\u00d7f)<\/h3>\n<p>Um componente na pr\u00f3pria frequ\u00eancia da rede \u2014 50 ou 60 Hz \u2014 geralmente tem amplitude menor que 2\u00d7f. Ele pode revelar um desequil\u00edbrio de tens\u00e3o de alimenta\u00e7\u00e3o e pode acompanhar falhas nos enrolamentos do estator.<\/p>\n<h3>Harm\u00f4nicos superiores<\/h3>\n<p>Componentes em 4\u00d7f, 6\u00d7f e al\u00e9m (240 Hz, 360 Hz em um sistema de 60 Hz) s\u00e3o tipicamente baixos em um motor saud\u00e1vel. Quando crescem, podem indicar problemas nos enrolamentos ou nas l\u00e2minas do n\u00facleo.<\/p>\n<h2>3. Significado Diagn\u00f3stico<\/h2>\n<h3>Amplitude normal de 2\u00d7f<\/h3>\n<p>Em um motor saud\u00e1vel, o componente 2\u00d7f \u00e9 tipicamente inferior a cerca de 10% do n\u00edvel de 1\u00d7 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/running-speed\/\">velocidade de opera\u00e7\u00e3o<\/a> mant\u00e9m-se relativamente constante ao longo do tempo e aparece em todas as dire\u00e7\u00f5es, embora frequentemente seja mais forte na dire\u00e7\u00e3o radial. Estabelecer esse n\u00edvel normal \u00e9 o que torna um aumento posterior significativo.<\/p>\n<h3>2\u00d7f elevado e o que isso significa<\/h3>\n<ul>\n<li><strong>Problemas nos enrolamentos do estator:<\/strong> curtos-circuitos espiral a espiral ou desequil\u00edbrio de fase elevam o 2\u00d7f ao longo do tempo, frequentemente com um aumento de temperatura e um desequil\u00edbrio de corrente mensur\u00e1vel entre as fases.<\/li>\n<li><strong>Excentricidade do entreferro:<\/strong> um entreferro n\u00e3o uniforme devido ao <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/eccentricity\/\">excentricidade<\/a> ou <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-wear\/\">desgaste do rolamento<\/a> cria for\u00e7as magn\u00e9ticas desequilibradas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/magnetic-pull\/\">tra\u00e7\u00e3o magn\u00e9tica<\/a>, elevando o 2\u00d7f e as <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/pole-pass-frequency\/\">frequ\u00eancias de passagem de polo<\/a> juntamente \u2014 uma mistura de efeitos mec\u00e2nicos e eletromagn\u00e9ticos.<\/li>\n<li><strong>P\u00e9 mancal frouxo (soft foot) ou resson\u00e2ncia da estrutura:<\/strong> se um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/soft-foot\/\">p\u00e9 mancal frouxo<\/a> ou a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/natural-frequency\/\">frequ\u00eancia natural<\/a> da estrutura estiver perto de 2\u00d7f, <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/resonance\/\">resson\u00e2ncia estrutural<\/a> amplifica a vibra\u00e7\u00e3o eletromagn\u00e9tica; a vibra\u00e7\u00e3o da estrutura ent\u00e3o supera amplamente a vibra\u00e7\u00e3o do rolamento, e a corre\u00e7\u00e3o \u00e9 o refor\u00e7o estrutural ou a adi\u00e7\u00e3o de amortecimento.<\/li>\n<\/ul>\n<h2>4. Acionadores de Frequ\u00eancia Vari\u00e1vel<\/h2>\n<p>Um inversor de frequ\u00eancia varia deliberadamente a frequ\u00eancia de sa\u00edda \u2014 comumente 0\u2013120 Hz \u2014 e a velocidade do motor a segue, portanto, todas as frequ\u00eancias eletromagn\u00e9ticas, incluindo 2\u00d7f e os componentes de passagem de polo, escalonam com a sa\u00edda do inversor em vez de permanecer fixas em 50 ou 60 Hz. Essa mobilidade tem consequ\u00eancias pr\u00e1ticas para a vibra\u00e7\u00e3o:<\/p>\n<ul>\n<li><strong>Frequ\u00eancias de comuta\u00e7\u00e3o:<\/strong> a portadora PWM injeta componentes na faixa de kHz sobre o fundamental.<\/li>\n<li><strong>Correntes nos rolamentos:<\/strong> correntes de alta frequ\u00eancia podem causar pitting e sulcos nos rolamentos se o eixo n\u00e3o estiver aterrado corretamente.<\/li>\n<li><strong>Vibra\u00e7\u00e3o torsional:<\/strong> pulsa\u00e7\u00f5es de torque aparecem em v\u00e1rias frequ\u00eancias.<\/li>\n<li><strong>Excita\u00e7\u00e3o de resson\u00e2ncia:<\/strong> uma velocidade vari\u00e1vel varrida pode passar por resson\u00e2ncias estruturais e amplificar momentaneamente a vibra\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>5. Exemplos Pr\u00e1ticos de Diagn\u00f3stico<\/h2>\n<h3>Caso 1 \u2014 vibra\u00e7\u00e3o 2\u00d7f alta<\/h3>\n<p>Um motor de 4 polos a 60 Hz operando perto de 1750 RPM mostra um componente de 120 Hz a 6 mm\/s, bem acima de seu n\u00edvel de 1\u00d7 velocidade de rota\u00e7\u00e3o de cerca de 2 mm\/s. Como a energia est\u00e1 concentrada em duas vezes a frequ\u00eancia da rede em vez da velocidade de rota\u00e7\u00e3o, a indica\u00e7\u00e3o \u00e9 de um problema nos enrolamentos do estator ou excentricidade do entreferro, em vez de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a>. A termografia ent\u00e3o revela um ponto quente no estator e um desequil\u00edbrio de corrente \u00e9 medido entre as fases, confirmando o diagn\u00f3stico; a a\u00e7\u00e3o corretiva \u00e9 rebobinar ou substituir o motor.<\/p>\n<h3>Caso 2 \u2014 bandas laterais ao redor da velocidade de rota\u00e7\u00e3o<\/h3>\n<p>Picos aparecem em 1\u00d7 \u00b1 o espa\u00e7amento relacionado ao escorregamento (alguns Hz), a assinatura cl\u00e1ssica de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/broken-rotor-bars\/\">barras do rotor quebradas<\/a>. A an\u00e1lise de assinatura de corrente do motor mostra o mesmo <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/sidebands\/\">banda lateral<\/a> padr\u00e3o na corrente de alimenta\u00e7\u00e3o, e o acompanhamento da amplitude das bandas laterais ao longo do tempo fornece o tempo de anteced\u00eancia para planejar uma substitui\u00e7\u00e3o. Ambos os casos se enquadram na fam\u00edlia mais ampla de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/electrical-faults\/\">falhas el\u00e9tricas<\/a> que a an\u00e1lise de vibra\u00e7\u00e3o est\u00e1 bem posicionada para separar das falhas mec\u00e2nicas.<\/p>\n<h2>6. Melhores Pr\u00e1ticas de Monitoramento<\/h2>\n<h3>Configura\u00e7\u00e3o do espectro<\/h3>\n<p>Defina a frequ\u00eancia m\u00e1xima acima de 500 Hz para que a an\u00e1lise capture 2\u00d7f e seus harm\u00f4nicos, e escolha resolu\u00e7\u00e3o suficiente para separar bandas laterais pr\u00f3ximas \u2014 melhor que cerca de 0,5 Hz de resolu\u00e7\u00e3o para trabalhos com frequ\u00eancia de escorregamento. Me\u00e7a nas dire\u00e7\u00f5es horizontal, vertical e axial, pois os componentes eletromagn\u00e9ticos e mec\u00e2nicos se distribuem de forma diferente entre as dire\u00e7\u00f5es.<\/p>\n<h3>Valores de refer\u00eancia e tend\u00eancias<\/h3>\n<p>Registre a amplitude de 2\u00d7f quando um motor \u00e9 novo ou rec\u00e9m-remoto, estabele\u00e7a n\u00edveis normais para cada tipo de motor na instala\u00e7\u00e3o e defina limites de alarme \u2014 tipicamente duas a tr\u00eas vezes <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/baseline\/\">valor de refer\u00eancia<\/a> para 2\u00d7f. Em seguida, acompanhe as tend\u00eancias dos par\u00e2metros relevantes: a amplitude da linha de 2\u00d7, os componentes de passagem de polo, as amplitudes e padr\u00f5es das bandas laterais, o n\u00edvel geral de vibra\u00e7\u00e3o e os indicadores usuais de condi\u00e7\u00e3o do rolamento. Observar como esses valores se movem ao longo do tempo, por meio de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/trend-analysis\/\">an\u00e1lise de tend\u00eancias<\/a>, \u00e9 o que converte um \u00fanico espectro em um alerta precoce.<\/p>\n<h2>7. Medi\u00e7\u00e3o em Campo<\/h2>\n<p>Separar uma assinatura el\u00e9trica de uma mec\u00e2nica come\u00e7a com uma medi\u00e7\u00e3o limpa de amplitude, frequ\u00eancia e <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/phase\/\">fase<\/a> na m\u00e1quina. Um instrumento port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a> captura o espectro FFT e a refer\u00eancia s\u00edncrona necess\u00e1ria para posicionar esses componentes precisamente em rela\u00e7\u00e3o \u00e0 velocidade de opera\u00e7\u00e3o e seus harm\u00f4nicos, ajudando a confirmar se um pico pr\u00f3ximo a 100 ou 120 Hz \u00e9 eletromagn\u00e9tico ou simplesmente uma resposta estrutural. E, uma vez descartada uma causa el\u00e9trica e identificado o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> como o verdadeiro motor da vibra\u00e7\u00e3o de 1\u00d7, o mesmo instrumento realiza o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balanceamento-de-campo\/\">balanceamento em campo<\/a> que a corrige \u2014 tornando o conhecimento da frequ\u00eancia de linha diretamente acion\u00e1vel no ch\u00e3o de f\u00e1brica.<\/p>\n<p>A frequ\u00eancia el\u00e9trica \u00e9 fundamental para entender como um motor CA opera e como falha. Reconhecer componentes de frequ\u00eancia de linha \u2014 2\u00d7f acima de tudo \u2014 em um espectro de vibra\u00e7\u00e3o e conhecer os fen\u00f4menos eletromagn\u00e9ticos por tr\u00e1s deles permite que um analista trace a linha crucial entre falhas mec\u00e2nicas e el\u00e9tricas e direcione a a\u00e7\u00e3o diagn\u00f3stica e corretiva adequada.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/\">\u2190 Voltar ao \u00cdndice Principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about electrical frequency (line frequency), the AC power supply frequency that determines motor synchronous speed and creates characteristic vibration components at 2X line frequency.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-111","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/111\/revisions"}],"predecessor-version":[{"id":101332,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/111\/revisions\/101332"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}