{"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":"2026-05-23T22:56:00","modified_gmt":"2026-05-23T22:56:00","slug":"broken-rotor-bars","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/nb\/glossary\/broken-rotor-bars\/","title":{"rendered":"Hva er \u00f8delagte rotorstenger? Motorfeil i ekornbur"},"content":{"rendered":"<h1>Forst\u00e5else av \u00f8delagte rotorstenger<\/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\/nb\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator 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 komplett sett med b\u00e6rbart balanseapparat og vibrasjonsanalysator\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator Balanset-1A\">B\u00e6rbart balanseapparat og vibrasjonsanalysator 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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">\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 vibrasjonssensor i n\u00e6rbilde\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">Vibrasjonssensor<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abVibration sensor\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abVibration sensor\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">\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=\"Optisk sensor (lasertakometer)\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">Optisk sensor (lasertakometer)<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abOptical Sensor (Laser Tachometer)\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abOptical Sensor (Laser Tachometer)\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/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 rotorbalanseringssett: b\u00e6reveske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrasjonssensorer og spiralkabler.\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abBalanset-4\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abBalanset-4\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/magnet-stand\/\" title=\"Magnetisk stativ 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=\"Magnetisk 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/magnet-stand\/\" title=\"Magnetisk stativ Insize-60-kgf\">Magnetisk stativ 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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" 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class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/nb\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">\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=\"Refleksb\u00e5nd\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">Refleksb\u00e5nd<\/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> + MVA (hvis aktuelt)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div 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tape\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &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=\"Balanset-1A-settet inneholder grensesnittenhet, sensorer, turteller og tilbeh\u00f8r\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &quot;Balanset-1A&quot; OEM\">Dynamisk balanseringsapparat \"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> + MVA (hvis aktuelt)<\/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=\"\/nb\/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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/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=\"Legg i handlekurv: \u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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>\u00d8delagte rotorstenger<\/strong> er fullstendige brudd p\u00e5 lederskinnene i ekornburrotoren i en induksjonsmotor. Tilstanden er i hovedsak den samme som en <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/rotor-bar-defects\/\">defekt rotorstang<\/a>, men begrepet understreker et fullstendig brudd snarere enn en sprekk eller en h\u00f8yresistent skj\u00f8t. N\u00e5r en eller flere stenger brytes, kan str\u00f8mmen ikke lenger flyte gjennom dem, og den elektromagnetiske asymmetrien som oppst\u00e5r, gir en karakteristisk <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration\/\">vibrasjon<\/a> og n\u00e5v\u00e6rende signaturer - <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/sidebands\/\">sideb\u00e5nd<\/a> fordelt p\u00e5 <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/slip-frequency\/\">slipfrekvens<\/a> rundt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/running-speed\/\">l\u00f8pehastighet<\/a>.<\/p>\n<p>\u00d8delagte stenger er spesielt lumske fordi de svikter som en kaskade. \u00c9n \u00f8delagt stang tvinger ekstra str\u00f8m og stress inn i stengene ved siden av, som s\u00e5 begynner \u00e5 svikte i tur og orden. Hvis feilen oppdages tidlig - p\u00e5 det stadiet der bare \u00e9n stang er \u00f8delagt - kan motoren g\u00e5 i m\u00e5nedsvis under overv\u00e5kning. Hvis den ikke oppdages, kan feilen akselerere til flere \u00f8delagte stenger og en katastrofal rotorsvikt som krever utskifting.<\/p>\n<h2>1. Hvordan rotorstenger g\u00e5r i stykker<\/h2>\n<h3>Termisk utmattelse (vanligst)<\/h3>\n<p>Gjentatte varme- og kj\u00f8lesykluser er den viktigste \u00e5rsaken, og mekanismen er verdt \u00e5 f\u00f8lge trinn for trinn:<\/p>\n<ul>\n<li><strong>Oppstartsstr\u00f8m:<\/strong> under en start f\u00f8rer rotoren 5-7\u00d7 normal str\u00f8m i l\u00e5st rotortilstand.<\/li>\n<li><strong>Termisk ekspansjon:<\/strong> aluminiumsstengene utvider seg kraftig, med en koeffisient p\u00e5 rundt 23 \u00b5m\/m\/\u00b0C.<\/li>\n<li><strong>Begrensning:<\/strong> jernkjernen utvider seg langt mindre (ca. 12 \u00b5m\/m\/\u00b0C), noe som holder stengene tilbake.<\/li>\n<li><strong>Stress:<\/strong> denne differensielle ekspansjonen skaper h\u00f8y termisk spenning i stengene.<\/li>\n<li><strong>Utmattelse:<\/strong> gjentatte startsykluser driver lav syklus <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/fatigue\/\">utmattelse<\/a>.<\/li>\n<li><strong>Oppst\u00e5else av sprekker:<\/strong> sprekker begynner vanligvis ved overgangen mellom stang og ring, det punktet som utsettes for st\u00f8rst belastning.<\/li>\n<\/ul>\n<h3>Mekanisk stress<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/nb\/glossary\/centrifugal-force\/\">Sentrifugalkrefter<\/a> i h\u00f8y hastighet.<\/li>\n<li>Elektromagnetiske krefter under kj\u00f8ring og start.<\/li>\n<li>Vibrasjoner som overf\u00f8res fra eksterne kilder.<\/li>\n<li>St\u00f8tbelastning under start eller plutselige lastendringer.<\/li>\n<\/ul>\n<h3>Produksjonsfeil<\/h3>\n<ul>\n<li><strong>Por\u00f8sitet:<\/strong> hulrom i rotorer av st\u00f8pt aluminium.<\/li>\n<li><strong>D\u00e5rlig binding:<\/strong> utilstrekkelig binding mellom stang og kjerne.<\/li>\n<li><strong>Inneslutninger i materialet:<\/strong> forurensninger som er fanget i st\u00f8pestykket.<\/li>\n<li><strong>Svake enderingsledd:<\/strong> d\u00e5rlig forbindelse mellom stang og ring.<\/li>\n<\/ul>\n<h3>Driftsforhold<\/h3>\n<ul>\n<li><strong>Hyppig start:<\/strong> hver start er en termisk og mekanisk stresshendelse.<\/li>\n<li><strong>H\u00f8ye treghetsbelastninger:<\/strong> lange akselerasjonstider forlenger belastningen p\u00e5 stangen.<\/li>\n<li><strong>Reverseringstjeneste:<\/strong> plugging skaper ekstreme str\u00f8mmer.<\/li>\n<li><strong>Enfasing:<\/strong> kj\u00f8ring med en fase tapt overbelaster de gjenv\u00e6rende rotorstengene.<\/li>\n<\/ul>\n<h2>2. Den karakteristiske sideb\u00e5ndssignaturen<\/h2>\n<h3>Hvorfor sideb\u00e5nd vises<\/h3>\n<p>Det s\u00e6regne diagnostiske m\u00f8nsteret oppst\u00e5r gjennom en klar kjede av \u00e5rsak og virkning:<\/p>\n<ol>\n<li>En \u00f8delagt stang kan ikke f\u00f8re str\u00f8m, noe som skaper elektrisk asymmetri i rotoren.<\/li>\n<li>Asymmetrien roterer med glidefrekvensen - forskjellen mellom synkron hastighet og rotorhastighet.<\/li>\n<li>Det gir en momentpulsasjon p\u00e5 det dobbelte av glidefrekvensen.<\/li>\n<li>Momentpulsasjonen modulerer 1\u00d7-vibrasjonen som kommer fra vanlig mekanisk ubalanse.<\/li>\n<li>Resultatet er sideb\u00e5nd med intervaller p\u00e5 l\u00f8pehastighet \u00b1 glidefrekvens.<\/li>\n<\/ol>\n<h3>Vibrasjonsm\u00f8nster<\/h3>\n<ul>\n<li><strong>Sentral topp:<\/strong> 1\u00d7 l\u00f8pehastighet (f<sub>r<\/sub>).<\/li>\n<li><strong>Nedre sideb\u00e5nd:<\/strong> f<sub>r<\/sub> - f<sub>s<\/sub> (hvor f<sub>s<\/sub> er glidefrekvensen).<\/li>\n<li><strong>\u00d8vre sideb\u00e5nd:<\/strong> f<sub>r<\/sub> + f<sub>s<\/sub>.<\/li>\n<li><strong>Flere sideb\u00e5nd:<\/strong> f<sub>r<\/sub> \u00b1 2f<sub>s<\/sub>, f<sub>r<\/sub> \u00b1 3f<sub>s<\/sub> etter hvert som alvorlighetsgraden \u00f8ker.<\/li>\n<li><strong>Symmetri:<\/strong> sideb\u00e5ndene ligger symmetrisk rundt 1\u00d7-toppen.<\/li>\n<\/ul>\n<h3>Utarbeidet eksempel<\/h3>\n<p>En 4-polet 60 Hz-motor ved full belastning:<\/p>\n<ul>\n<li>Synkron hastighet: 1800 o\/min.<\/li>\n<li>Faktisk hastighet: 1750 o\/min (29,17 Hz).<\/li>\n<li>Slipp: 50 o\/min (0,833 Hz).<\/li>\n<li><strong>Vibrasjonstopper ved:<\/strong> 28,3 Hz, 29,17 Hz og 30,0 Hz.<\/li>\n<li>En brukket bjelke bekreftes av de symmetriske sideb\u00e5ndene ved \u00b10,833 Hz.<\/li>\n<\/ul>\n<p>Fordi glidefrekvensen er hele grunnlaget for dette m\u00f8nsteret, l\u00f8nner det seg \u00e5 beregne den n\u00f8yaktig for den aktuelle motoren. <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/motor-slip-calculator\/\">Motorslipp og kalkulator for faktisk turtall<\/a> gj\u00f8r dette direkte fra typeskiltdata.<\/p>\n<h2>3. Str\u00f8msignaturanalyse (MCSA)<\/h2>\n<p>Motorstr\u00f8manalysen avdekker et n\u00e6rt beslektet m\u00f8nster rundt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/electrical-frequency\/\">linjefrekvens<\/a>:<\/p>\n<ul>\n<li><strong>Sentral topp:<\/strong> nettfrekvens (50 eller 60 Hz).<\/li>\n<li><strong>Sideb\u00e5nd:<\/strong> f<sub>linje<\/sub> \u00b1 2f<sub>s<\/sub> \u2014 merk at dette er <em>to ganger<\/em> glidefrekvensen i str\u00f8m, ikke \u00e9n gang.<\/li>\n<li><strong>Eksempel:<\/strong> en 60 Hz-motor med 1 Hz-slipp viser sideb\u00e5nd ved 58 Hz og 62 Hz.<\/li>\n<li><strong>Fordel:<\/strong> ikke-invasiv og egner seg godt til kontinuerlig overv\u00e5king.<\/li>\n<li><strong>F\u00f8lsomhet:<\/strong> oppdager ofte \u00f8delagte stenger tidligere enn vibrasjon. Det <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/motor-electrical-frequencies\/\">Kalkulator for motorens elektriske defektfrekvens<\/a> forutsier disse eksakte str\u00f8msideb\u00e5ndene.<\/li>\n<\/ul>\n<h2>4. Progresjonsstadier<\/h2>\n<h3>Enkelt \u00f8delagt stang<\/h3>\n<ul>\n<li>Sm\u00e5 sideb\u00e5nd vises, rundt 20-40% av 1\u00d7-toppen.<\/li>\n<li>Lett momentpulsasjon, ofte umerkelig.<\/li>\n<li>Motorisk ytelse er nesten normal.<\/li>\n<li>Motoren kan g\u00e5 i flere m\u00e5neder under overv\u00e5king.<\/li>\n<li>Utskifting b\u00f8r likevel planlegges.<\/li>\n<\/ul>\n<h3>Flere tilst\u00f8tende \u00f8delagte stenger<\/h3>\n<ul>\n<li>Sterke sideb\u00e5nd, st\u00f8rre enn 50% av 1\u00d7-toppen.<\/li>\n<li>Merkbar pulsering av dreiemomentet.<\/li>\n<li>\u00d8kt glidning og temperatur.<\/li>\n<li>Progresjonen akselererer etter hvert som de tilst\u00f8tende stengene overopphetes.<\/li>\n<li>Utskifting haster - det er et sp\u00f8rsm\u00e5l om uker.<\/li>\n<\/ul>\n<h3>Alvorlig tilstand<\/h3>\n<ul>\n<li>Sideb\u00e5ndene kan overstige 1\u00d7 toppamplituden.<\/li>\n<li>Kraftig momentpulsasjon som n\u00e5r det drevne utstyret.<\/li>\n<li>H\u00f8ye vibrasjoner og temperaturer.<\/li>\n<li>Fare for ende-ringfeil eller fullstendig rotorhavari.<\/li>\n<li>\u00d8yeblikkelig utskifting er n\u00f8dvendig.<\/li>\n<\/ul>\n<h2>5. Oppdagelse i felten<\/h2>\n<h3>Vibrasjonsanalyse<\/h3>\n<p>Den avgj\u00f8rende utfordringen er oppl\u00f8sningen: Sideb\u00e5ndene ligger mindre enn 1 Hz fra 1\u00d7-toppen, s\u00e5 analysatoren m\u00e5 skille dem rent fra hverandre.<\/p>\n<ul>\n<li>Bruk en h\u00f8yoppl\u00f8selig <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/fft\/\">FFT<\/a> - bedre enn 0,2 Hz oppl\u00f8sning - for \u00e5 l\u00f8se opp sideb\u00e5ndene. <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/fft-resolution-calculator\/\">FFT-oppl\u00f8sningskalkulator<\/a> hjelper deg med \u00e5 velge linjeantall og spennvidde.<\/li>\n<li>Test motoren under belastning, siden sideb\u00e5ndene vokser med str\u00f8mmen.<\/li>\n<li>Beregn den forventede slipfrekvensen for motoren p\u00e5 forh\u00e5nd.<\/li>\n<li>S\u00f8k i <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/spectrum\/\">spektrum<\/a> for symmetriske sideb\u00e5nd ved \u00b1f<sub>s<\/sub> rundt 1\u00d7-toppen.<\/li>\n<li>Utvikle sideb\u00e5ndets amplitude over tid.<\/li>\n<\/ul>\n<p>Dette arbeidet er godt innenfor rekkevidden til et b\u00e6rbart instrument. En tokanals analysator som f.eks. <a href=\"https:\/\/vibromera.eu\/nb\/produkt\/balanset-1\/\">Balanset-1A<\/a> fanger opp vibrasjonsspekteret ved motorlageret, mens det optiske laserturtelleren leser av den sanne akselhastigheten, slik at du kan fastsette den n\u00f8yaktige 1\u00d7-frekvensen, beregne slippen og se etter sideb\u00e5ndene med glideavstand som bekrefter brudd p\u00e5 rotorstengene - alt mens motoren g\u00e5r under normal belastning. Fordi det samme instrumentet ogs\u00e5 m\u00e5ler 1\u00d7 amplitude og fase, kan det enkelt skille en ekte rotorbarsignatur fra en enkel <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/running-speed\/\">kj\u00f8rehastighet<\/a> ubalanse som krever balansering i stedet for rotorbytte.<\/p>\n<h3>MCSA-testing<\/h3>\n<ul>\n<li>Klem str\u00f8msonder p\u00e5 motorledningene.<\/li>\n<li>Hent inn den aktuelle b\u00f8lgeformen og beregn dens FFT.<\/li>\n<li>Se etter sideb\u00e5nd ved f<sub>linje<\/sub> \u00b1 2f<sub>s<\/sub>.<\/li>\n<li>Sammenlign med en frisk-motorisk baseline.<\/li>\n<li>Dette kan varsle om et problem f\u00f8r vibrasjonssymptomene blir tydelige.<\/li>\n<\/ul>\n<h2>6. Korrigerende tiltak<\/h2>\n<h3>Umiddelbar respons<\/h3>\n<ul>\n<li>\u00d8k overv\u00e5kingsfrekvensen - m\u00e5nedlig, deretter ukentlig, deretter daglig.<\/li>\n<li>F\u00f8lg veksten i sideb\u00e5ndets amplitude gjennom <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/trend-analysis\/\">trendanalyse<\/a>.<\/li>\n<li>Bestill en reservemotor eller planlegg utskifting av rotoren.<\/li>\n<li>Reduser driftssyklusen hvis mulig, og minimer antall starter.<\/li>\n<li>Dokumenter progresjonen for feilanalyse.<\/li>\n<\/ul>\n<h3>Reparasjonsalternativer<\/h3>\n<ul>\n<li><strong>Rotorbytte:<\/strong> det mest p\u00e5litelige valget for store motorer (over 100 hk).<\/li>\n<li><strong>Omst\u00f8ping av rotor:<\/strong> spesialforretninger kan st\u00f8pe om aluminiumsrotorer.<\/li>\n<li><strong>Utskifting av motor:<\/strong> ofte den mest \u00f8konomiske l\u00f8sningen for sm\u00e5 motorer (under 50 hk).<\/li>\n<li><strong>Unders\u00f8kelse av bakenforliggende \u00e5rsaker:<\/strong> finne ut hvorfor stengene brakk for \u00e5 forhindre en gjentakelse.<\/li>\n<\/ul>\n<h3>Forebygging<\/h3>\n<ul>\n<li>Bruk myke startere eller VFD-er for \u00e5 redusere startstr\u00f8m og termisk belastning.<\/li>\n<li>Begrens startfrekvensen for laster med h\u00f8y treghet.<\/li>\n<li>Spesifiser motorer som er dimensjonert for den faktiske driftssyklusen - motorer med hyppig start for drift med h\u00f8y syklus.<\/li>\n<li>S\u00f8rg for tilstrekkelig ventilasjon og kj\u00f8ling av motoren.<\/li>\n<li>Beskytt mot enfasede forhold.<\/li>\n<\/ul>\n<p>Brudd p\u00e5 rotorstengene utgj\u00f8r bare ca. 10-15% av <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/motor-defects\/\">motorfeil<\/a>, Likevel etterlater de en umiskjennelig sideb\u00e5ndssignatur som gj\u00f8r det mulig \u00e5 oppdage dem tidlig ved hjelp av vibrasjons- eller str\u00f8manalyse. Forst\u00e5else av den termiske utmattingsmekanismen, gjenkjenning av det karakteristiske sideb\u00e5ndsm\u00f8nsteret og integrering av kontrollene i en <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/condition-monitoring\/\">tilstandsoverv\u00e5king<\/a> program gj\u00f8r det mulig \u00e5 skifte ut en motor p\u00e5 en planlagt m\u00e5te - f\u00f8r en enkelt \u00f8delagt s\u00f8yle f\u00f8rer til flere s\u00f8ylefeil og lengre ikke-planlagt driftsstans.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/nb\/glossary\/\">\u2190 Tilbake til hovedindeksen<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om \u00f8delagte rotorskinner i induksjonsmotorer, brukne lederskinner som skaper slipfrekvenssideb\u00e5nd, momentpulsering og progressiv svikt hvis det ikke oppdages tidlig.<\/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\/nb\/wp-json\/wp\/v2\/glossary\/63","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/63\/revisions"}],"predecessor-version":[{"id":101428,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/63\/revisions\/101428"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=63"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=63"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=63"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}