{"id":63,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/broken-rotor-bars\/"},"modified":"2026-07-03T09:57:04","modified_gmt":"2026-07-03T09:57:04","slug":"broken-rotor-bars","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/broken-rotor-bars\/","title":{"rendered":"Ce sunt barele rotorice sparte? Defec\u021biunea motorului cu colivie de veveri\u021b\u0103"},"content":{"rendered":"<h1>\u00cen\u021belegerea barelor de rotor sparte<\/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\/ro\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii 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 complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\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=\"Prim-plan senzor de vibra\u021bii 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu 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=\"Senzor optic (tahometru cu 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/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 echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic 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=\"Baza magnetic\u0103.\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\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=\"Band\u0103 reflectorizant\u0103\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &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=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/63?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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>Bare de rotor rupte<\/strong> sunt fracturi complete ale barelor conductoare din rotorul cu cu\u0219c\u0103 de veveri\u021b\u0103 al unui motor de induc\u021bie. Situa\u021bia este, \u00een esen\u021b\u0103, identic\u0103 cu cea a unui <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-bar-defects\/\">defect la bara rotorului<\/a>, \u00eens\u0103 termenul se refer\u0103 la o rupere complet\u0103, nu la o fisur\u0103 sau la o \u00eembinare de \u00eenalt\u0103 rezisten\u021b\u0103. Atunci c\u00e2nd una sau mai multe bare se rup, curentul nu mai poate circula prin ele, iar asimetria electromagnetic\u0103 rezultat\u0103 produce un <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> \u0219i semn\u0103turile de curent \u2014 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sidebands\/\">benzi laterale<\/a> spaced at the <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/pole-pass-frequency\/\">frecven\u021b\u0103 de trecere a polilor<\/a> (num\u0103rul de poli \u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/slip-frequency\/\">frecven\u021ba de alunecare<\/a>) around the <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/running-speed\/\">vitez\u0103 de func\u021bionare<\/a>.<\/p>\n<p>Barele rupte sunt deosebit de insidioase, deoarece defectarea lor se produce \u00een cascad\u0103. O singur\u0103 bar\u0103 rupt\u0103 determin\u0103 o cre\u0219tere a curentului \u0219i a solicit\u0103rii asupra barelor adiacente, care, la r\u00e2ndul lor, \u00eencep s\u0103 se defecteze. Dac\u0103 este depistat\u0103 din timp \u2014 \u00een stadiul \u00een care este afectat\u0103 o singur\u0103 bar\u0103 \u2014 motorul poate func\u021biona luni \u00eentregi sub supraveghere; dac\u0103 nu este depistat\u0103, defec\u021biunea se poate agrava, duc\u00e2nd la ruperea mai multor bare \u0219i la o avarie catastrofal\u0103 a rotorului, care necesit\u0103 \u00eenlocuirea acestuia.<\/p>\n<h2>1. Cum se rup barele rotorului<\/h2>\n<h3>Oboseal\u0103 termic\u0103 (cea mai frecvent\u0103)<\/h3>\n<p>Ciclurile repetate de \u00eenc\u0103lzire \u0219i r\u0103cire reprezint\u0103 cauza principal\u0103, iar mecanismul merit\u0103 urm\u0103rit pas cu pas:<\/p>\n<ul>\n<li><strong>Curent de pornire:<\/strong> La pornire, rotorul suport\u0103 un curent de 5\u20137 ori mai mare dec\u00e2t cel normal \u00een condi\u021bii de blocare a rotorului.<\/li>\n<li><strong>Expansiune termic\u0103:<\/strong> barele de aluminiu se dilat\u0103 puternic, av\u00e2nd un coeficient de aproximativ 23 \u00b5m\/m\/\u00b0C.<\/li>\n<li><strong>Constr\u00e2ngere:<\/strong> miezul de fier se dilat\u0103 mult mai pu\u021bin (aproximativ 12 \u00b5m\/m\/\u00b0C), men\u021bin\u00e2nd barele \u00een pozi\u021bie.<\/li>\n<li><strong>Solicitare:<\/strong> Aceast\u0103 dilatare diferen\u021bial\u0103 genereaz\u0103 tensiuni termice ridicate \u00een bare.<\/li>\n<li><strong>Oboseal\u0103:<\/strong> Ciclurile repetate de pornire genereaz\u0103 oboseal\u0103 la num\u0103r redus de cicluri <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fatigue\/\">oboseal\u0103<\/a>.<\/li>\n<li><strong>Ini\u021bierea fisurii:<\/strong> fisurile apar de obicei la \u00eembinarea dintre bar\u0103 \u0219i inelul de cap\u0103t, punctul supus celor mai mari solicit\u0103ri.<\/li>\n<\/ul>\n<h3>Tensiune mecanic\u0103<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/centrifugal-force\/\">For\u021be centrifuge<\/a> at high speed.<\/li>\n<li>For\u021bele electromagnetice \u00een timpul func\u021bion\u0103rii \u0219i la pornire.<\/li>\n<li>Vibra\u021bii transmise de la surse externe.<\/li>\n<li>Solicit\u0103ri bru\u0219te la pornire sau schimb\u0103ri bru\u0219te ale sarcinii.<\/li>\n<\/ul>\n<h3>Defecte de fabrica\u021bie<\/h3>\n<ul>\n<li><strong>Porozitate:<\/strong> goluri \u00een rotoarele din aluminiu turnat.<\/li>\n<li><strong>Aderen\u021b\u0103 slab\u0103:<\/strong> adezivitate insuficient\u0103 \u00eentre bar\u0103 \u0219i miez.<\/li>\n<li><strong>Incluziuni materiale:<\/strong> contaminan\u021bi re\u021binu\u021bi \u00een piesa turnat\u0103.<\/li>\n<li><strong>\u00cembin\u0103ri slabe ale inelelor de cap\u0103t:<\/strong> conexiuni defectuoase \u00eentre bar\u0103 \u0219i inelul de cap\u0103t.<\/li>\n<\/ul>\n<h3>Condi\u021bii de func\u021bionare<\/h3>\n<ul>\n<li><strong>Porniri frecvente:<\/strong> Fiecare pornire reprezint\u0103 un eveniment care genereaz\u0103 solicit\u0103ri termice \u0219i mecanice.<\/li>\n<li><strong>Sarcini cu iner\u021bie mare:<\/strong> Timpii lungi de accelerare prelungesc solicitarea barei.<\/li>\n<li><strong>Serviciu de schimbare a sensului de mers:<\/strong> Fr\u00e2narea contracurent genereaz\u0103 curen\u021bi extrem de puternici.<\/li>\n<li><strong>Single-phasing:<\/strong> func\u021bionarea cu o faz\u0103 lips\u0103 suprasolicit\u0103 barele r\u0103mase ale rotorului.<\/li>\n<\/ul>\n<h2>2. Semn\u0103tura benzii laterale caracteristice<\/h2>\n<h3>De ce apar benzile laterale<\/h3>\n<p>Modelul diagnostic distinctiv se contureaz\u0103 printr-un lan\u021b clar de cauze \u0219i efecte:<\/p>\n<ol>\n<li>O bar\u0103 rupt\u0103 nu poate conduce curentul, ceea ce duce la apari\u021bia unei asimetrii electrice \u00een rotor.<\/li>\n<li>Acea asimetrie r\u0103m\u00e2ne \u00een urm\u0103 fa\u021b\u0103 de c\u00e2mpul rotativ cu frecven\u021ba de alunecare f<sub>s<\/sub> \u2014 diferen\u021ba dintre viteza sincron\u0103 \u0219i viteza rotorului, \u00een Hz.<\/li>\n<li>Produce o pulsa\u021bie de cuplu la frecven\u021ba de trecere a polilor F<sub>P<\/sub> = num\u0103rul de poli \u00d7 f<sub>s<\/sub> \u2014 equivalently twice the per-unit slip times the line frequency (2\u00b7s\u00b7f<sub>linia<\/sub>).<\/li>\n<li>Pulsarea cuplului moduleaz\u0103 vibra\u021bia de frecven\u021b\u0103 1\u00d7 generat\u0103 de un dezechilibru mecanic obi\u0219nuit.<\/li>\n<li>Rezultatul este apari\u021bia unor benzi laterale spa\u021biate la intervale de vitez\u0103 de func\u021bionare \u00b1 frecven\u021ba de trecere a polilor.<\/li>\n<\/ol>\n<h3>Model de vibra\u021bii<\/h3>\n<ul>\n<li><strong>V\u00e2rf central:<\/strong> 1\u00d7 viteza de rota\u021bie (f<sub>r<\/sub>).<\/li>\n<li><strong>Band\u0103 lateral\u0103 inferioar\u0103:<\/strong> f<sub>r<\/sub> \u2212 F<sub>P<\/sub> (where F<sub>P<\/sub> = poles \u00d7 f<sub>s<\/sub> este frecven\u021ba de trecere a polilor).<\/li>\n<li><strong>Band\u0103 lateral\u0103 superioar\u0103:<\/strong> f<sub>r<\/sub> + F<sub>P<\/sub>.<\/li>\n<li><strong>Bande laterale multiple:<\/strong> f<sub>r<\/sub> \u00b1 2F<sub>P<\/sub>, f<sub>r<\/sub> \u00b1 3F<sub>P<\/sub> pe m\u0103sur\u0103 ce severitatea cre\u0219te.<\/li>\n<li><strong>Simetrie:<\/strong> benzile laterale sunt dispuse simetric \u00een jurul v\u00e2rfului de 1\u00d7.<\/li>\n<\/ul>\n<h3>Worked Example<\/h3>\n<p>Un motor cu 4 poli, de 60 Hz, la sarcin\u0103 maxim\u0103:<\/p>\n<ul>\n<li>Viteza sincron\u0103: 1800 rpm.<\/li>\n<li>Viteza real\u0103: 1750 rpm (29,17 Hz).<\/li>\n<li>Alunecare: 50 RPM, deci frecven\u021ba de alunecare f<sub>s<\/sub> = 50\/60 = 0.833 Hz.<\/li>\n<li>Frecven\u021ba de trecere a polilor: F<sub>P<\/sub> = 4 poles \u00d7 0.833 Hz = 3.33 Hz.<\/li>\n<li><strong>V\u00e2rfuri de vibra\u021bii la:<\/strong> 25.8 Hz, 29.17 Hz \u0219i 32.5 Hz.<\/li>\n<li>O bar\u0103 rupt\u0103 este confirmat\u0103 de benzile laterale simetrice la \u00b13.33 Hz.<\/li>\n<\/ul>\n<p>Deoarece frecven\u021ba de alunecare constituie baza acestui model, este recomandabil s\u0103 o calcula\u021bi cu precizie pentru motorul respectiv; <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/motor-slip-calculator\/\">Calculator de alunecare motor \u0219i tura\u021bie real\u0103<\/a> face acest lucru direct pe baza datelor de pe pl\u0103cu\u021ba de identificare.<\/p>\n<h2>3. Analiza semn\u0103turii curentului (MCSA)<\/h2>\n<p>Analiza curentului motorului relev\u0103 un tipar str\u00e2ns legat, \u00een jurul <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/electrical-frequency\/\">line frequency<\/a>:<\/p>\n<ul>\n<li><strong>V\u00e2rf central:<\/strong> frecven\u021ba re\u021belei (50 sau 60 Hz).<\/li>\n<li><strong>Benzi laterale:<\/strong> f<sub>linia<\/sub> \u00b1 2\u00b7s\u00b7f<sub>linia<\/sub>, unde s este alunecarea \u00een unit\u0103\u021bi relative \u2014 aceea\u0219i \u00b1F<sub>P<\/sub> spacing as in vibration, because 2\u00b7s\u00b7f<sub>linia<\/sub> este egal\u0103 cu frecven\u021ba de trecere a polilor.<\/li>\n<li><strong>Exemplu:<\/strong> the 4-pole motor above (s = 50\/1800 \u2248 2.8%) shows sidebands at 60 \u00b1 3.33 Hz \u2014 that is, at 56.7 Hz and 63.3 Hz.<\/li>\n<li><strong>Avantaj:<\/strong> neinvaziv\u0103 \u0219i foarte potrivit\u0103 pentru monitorizarea continu\u0103.<\/li>\n<li><strong>Sensibilitate:<\/strong> detecteaz\u0103 adesea barele rupte mai devreme dec\u00e2t vibra\u021biile. <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/motor-electrical-frequencies\/\">Calculator de frecven\u021b\u0103 a defectelor electrice ale motorului<\/a> prezice exact aceste benzi laterale.<\/li>\n<\/ul>\n<h2>4. Etapele de progres<\/h2>\n<h3>O singur\u0103 bar\u0103 rupt\u0103<\/h3>\n<ul>\n<li>Se observ\u0103 benzi laterale mici, cu o intensitate de aproximativ 20\u201340 % din cea a v\u00e2rfului de 1\u00d7.<\/li>\n<li>O u\u0219oar\u0103 pulsa\u021bie a cuplului, adesea imperceptibil\u0103.<\/li>\n<li>Performan\u021ba motorului este aproape normal\u0103.<\/li>\n<li>Motorul poate func\u021biona luni \u00eentregi sub supraveghere.<\/li>\n<li>Cu toate acestea, ar trebui s\u0103 se ia \u00een calcul \u00eenlocuirea.<\/li>\n<\/ul>\n<h3>Mai multe bare adiacente rupte<\/h3>\n<ul>\n<li>Bande laterale puternice, mai mari de 50% din valoarea maxim\u0103 a semnalului 1\u00d7.<\/li>\n<li>Puls\u0103ri vizibile ale cuplului.<\/li>\n<li>Cre\u0219terea alunec\u0103rii \u0219i a temperaturii.<\/li>\n<li>Progresul se accelereaz\u0103 pe m\u0103sur\u0103 ce barele adiacente se supra\u00eenc\u0103lzesc.<\/li>\n<li>\u00cenlocuirea devine urgent\u0103 \u2014 este o chestiune de c\u00e2teva s\u0103pt\u0103m\u00e2ni.<\/li>\n<\/ul>\n<h3>Stare sever\u0103<\/h3>\n<ul>\n<li>Benzile laterale pot dep\u0103\u0219i amplitudinea de v\u00e2rf de 1\u00d7.<\/li>\n<li>Puls\u0103ri puternice ale cuplului care se transmit c\u0103tre echipamentul ac\u021bionat.<\/li>\n<li>Vibra\u021bii \u0219i temperaturi ridicate.<\/li>\n<li>Risc de defectare a inelului de cap\u0103t sau de avarie total\u0103 a rotorului.<\/li>\n<li>Este necesar\u0103 \u00eenlocuirea imediat\u0103.<\/li>\n<\/ul>\n<h2>5. Detectarea pe teren<\/h2>\n<h3>Analiza vibra\u021biilor<\/h3>\n<p>Provocarea definitorie este rezolu\u021bia: benzile laterale se afl\u0103 la doar c\u00e2\u021biva hertzi de v\u00e2rful 1\u00d7 (la frecven\u021ba de trecere a polilor, de obicei 1\u20134 Hz), astfel \u00eenc\u00e2t analizorul trebuie s\u0103 le separe clar.<\/p>\n<ul>\n<li>Folosi\u021bi un analizor cu rezolu\u021bie \u00eenalt\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fft\/\">FFT<\/a> \u2014 o rezolu\u021bie mai bun\u0103 de 0,2 Hz \u2014 pentru a distinge benzile laterale; <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/fft-resolution-calculator\/\">Calculator de rezolu\u021bie FFT<\/a> te ajut\u0103 s\u0103 alegi num\u0103rul de linii \u0219i intervalul.<\/li>\n<li>Testa\u021bi motorul sub sarcin\u0103, deoarece benzile laterale cresc odat\u0103 cu intensitatea curentului.<\/li>\n<li>Calcula\u021bi \u00een avans alunecarea a\u0219teptat\u0103 \u0219i frecven\u021ba de trecere a polilor pentru motor.<\/li>\n<li>Search the <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectru<\/a> pentru benzi laterale simetrice la \u00b1F<sub>P<\/sub> \u00een jurul v\u00e2rfului de 1\u00d7.<\/li>\n<li>Reprezint\u0103 grafic evolu\u021bia amplitudinii benzii laterale \u00een timp.<\/li>\n<\/ul>\n<p>Aceast\u0103 opera\u021biune poate fi realizat\u0103 cu u\u0219urin\u021b\u0103 cu ajutorul unui instrument portabil. Un analizor cu dou\u0103 canale, precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> captures the vibration spectrum at the motor bearing while its optical laser tachometer reads true shaft speed, letting you fix the precise 1\u00d7 frequency, compute the slip, and look for the pole-pass-spaced sidebands that confirm broken bars \u2014 all with the motor running under its normal load. Because the same instrument also measures 1\u00d7 amplitude and phase, it cleanly separates a genuine rotor-bar signature from a simple <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/running-speed\/\">viteza de func\u021bionare<\/a> un dezechilibru care ar necesita echilibrarea, mai degrab\u0103 dec\u00e2t \u00eenlocuirea rotorului.<\/p>\n<h3>Testarea MCSA<\/h3>\n<ul>\n<li>Fixa\u021bi sondele de curent pe cablurile motorului.<\/li>\n<li>Achizi\u021biona\u021bi forma de und\u0103 a curentului \u0219i calcula\u021bi transformata sa FFT.<\/li>\n<li>C\u0103uta\u021bi benzile laterale la frecven\u021ba f<sub>linia<\/sub> \u00b1 2\u00b7s\u00b7f<sub>linia<\/sub> (that is, f<sub>linia<\/sub> \u00b1 F<sub>P<\/sub>).<\/li>\n<li>Compara\u021bi cu o valoare de referin\u021b\u0103 pentru un motor \u00een stare bun\u0103.<\/li>\n<li>Acest lucru poate semnala o problem\u0103 \u00eenainte ca simptomele legate de vibra\u021bii s\u0103 devin\u0103 evidente.<\/li>\n<\/ul>\n<h2>6. M\u0103suri corective<\/h2>\n<h3>R\u0103spuns imediat<\/h3>\n<ul>\n<li>M\u0103ri\u021bi frecven\u021ba monitoriz\u0103rii \u2014 lunar, apoi s\u0103pt\u0103m\u00e2nal, apoi zilnic.<\/li>\n<li>Urm\u0103ri\u021bi evolu\u021bia amplitudinii benzii laterale prin <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/trend-analysis\/\">analiza tendin\u021belor<\/a>.<\/li>\n<li>Comanda\u021bi un motor de rezerv\u0103 sau planifica\u021bi \u00eenlocuirea rotorului.<\/li>\n<li>Reduce\u021bi, dac\u0103 este posibil, durata de func\u021bionare, limit\u00e2nd la minimum pornirile.<\/li>\n<li>Documenta\u021bi evolu\u021bia \u00een vederea analizei cauzei defec\u021biunii.<\/li>\n<\/ul>\n<h3>Op\u021biuni de reparare<\/h3>\n<ul>\n<li><strong>\u00cenlocuirea rotorului:<\/strong> cea mai fiabil\u0103 alegere pentru motoarele de mare putere (peste 100 CP).<\/li>\n<li><strong>Refacerea rotorului:<\/strong> Atelierele specializate pot retop\u00ec rotoarele din aluminiu.<\/li>\n<li><strong>\u00cenlocuirea motorului:<\/strong> adesea cea mai economic\u0103 solu\u021bie pentru motoarele de mic\u0103 putere (sub 50 CP).<\/li>\n<li><strong>Analiza cauzelor fundamentale:<\/strong> s\u0103 stabilim cauza ruperii barelor pentru a preveni repetarea incidentului.<\/li>\n<\/ul>\n<h3>Prevenirea<\/h3>\n<ul>\n<li>Folosi\u021bi demaroare soft sau variatoare de frecven\u021b\u0103 pentru a reduce curentul de pornire \u0219i solicitarea termic\u0103.<\/li>\n<li>Limita\u021bi frecven\u021ba de pornire pentru sarcinile cu iner\u021bie mare.<\/li>\n<li>Alege\u021bi motoare dimensionate pentru ciclul de func\u021bionare real \u2014 modele cu porniri frecvente pentru utilizare intensiv\u0103.<\/li>\n<li>Asigura\u021bi-v\u0103 c\u0103 motorul este ventilat \u0219i r\u0103cit corespunz\u0103tor.<\/li>\n<li>Proteja\u021bi \u00eempotriva situa\u021biilor de func\u021bionare monofazat\u0103.<\/li>\n<\/ul>\n<p>Barele de rotor rupte reprezint\u0103 doar aproximativ 10\u201315% din <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/motor-defects\/\">motor failures<\/a>, totu\u0219i las\u0103 o semn\u0103tur\u0103 inconfundabil\u0103 a benzilor laterale de trecere a polilor, care sus\u021bine detectarea timpurie fiabil\u0103 prin analiza vibra\u021biilor sau a curentului. \u00cen\u021belegerea mecanismului de oboseal\u0103 termic\u0103, recunoa\u0219terea modelului caracteristic al benzilor laterale \u0219i integrarea verific\u0103rilor \u00eentr-un <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/condition-monitoring\/\">monitorizarea st\u0103rii<\/a> programul permite \u00eenlocuirea planificat\u0103 a unui motor \u2014 \u00eenainte ca ruperea unei singure bare s\u0103 duc\u0103 la defectarea \u00een lan\u021b a mai multor bare \u0219i la perioade de nefunc\u021bionare neplanificate de lung\u0103 durat\u0103.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre barele rotorului rupte \u00een motoarele cu induc\u021bie, barele conductoare fracturate care creeaz\u0103 benzi laterale de frecven\u021b\u0103 de alunecare, pulsa\u021biile de cuplu \u0219i defec\u021biunile progresive dac\u0103 nu sunt detectate din timp.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-63","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/63","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/63\/revisions"}],"predecessor-version":[{"id":102161,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/63\/revisions\/102161"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=63"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=63"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=63"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}