{"id":215,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/rotor-bar-defects\/"},"modified":"2026-05-23T22:53:17","modified_gmt":"2026-05-23T22:53:17","slug":"rotor-bar-defects","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/nb\/glossary\/rotor-bar-defects\/","title":{"rendered":"Hva er rotorstangdefekter? \u00d8delagte rotorstanger i motorer"},"content":{"rendered":"<h1>Forst\u00e5 rotorstangdefekter<\/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\/215?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\/215?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\/215?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\/215?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\/215?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\/215?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\/215?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\/215?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 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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 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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\/215?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\/215?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>Defekter i rotorstangen<\/strong> \u2014 ogs\u00e5 kalt \u00f8delagte eller sprukne rotorskinner \u2014 er brudd, sprekker eller forbindelser med h\u00f8y motstand i lederskinner i en kortsluttet induksjonsmotor <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/motor-defects\/\">motor<\/a> rotor. En ekornburrotor er konstruert av aluminium- eller kobberstenger som er innfelt i spaltene i en laminert jernkjerne, der begge ender av hver stang er forbundet med et par kortslutningsringer (enderinger). N\u00e5r en stang brytes, eller en endering f\u00e5r sprekker, kan str\u00f8mmen ikke lenger str\u00f8mme uhindret gjennom den skadede lederen. Resultatet er elektromagnetisk asymmetri, pulserende dreiemoment og en sv\u00e6rt karakteristisk <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration\/\">vibrasjon<\/a> og gjeldende signatur merket med <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/sidebands\/\">sideb\u00e5nd<\/a> med avstand tilsvarende glidefrekvensen.<\/p>\n<p>Svikt i rotorstengene utgj\u00f8r anslagsvis 10\u201315 % av alle havarier i induksjonsmotorer. De er farlige nettopp fordi de utvikler seg gradvis: en enkelt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/broken-rotor-bars\/\">brutt rotorarm<\/a> overbelaster nabokomponentene, og det som starter med en sprukket leder, kan utvikle seg til flere brudd, kraftige dreiemomentpulseringer og til slutt \u00f8deleggelse av rotoren hvis det ikke oppdages i tide.<\/p>\n<h2>1. Typer av feil p\u00e5 rotorbjelker<\/h2>\n<p>Denne feilgruppen omfatter flere ulike mekanismer, som alle forstyrrer rotorens elektriske symmetri p\u00e5 lignende m\u00e5ter:<\/p>\n<ul>\n<li><strong>\u00d8delagte rotorstenger:<\/strong> Et fullstendig brudd p\u00e5 en lederstang, vanligvis i n\u00e6rheten av en endering der termiske og mekaniske belastninger konsentreres. Et brudd starter nesten alltid som en utmattingssprekk og utvikler seg til fullstendig brudd.<\/li>\n<li><strong>Sprukne enderinger:<\/strong> Brudd i kortslutningsringene som holder stengene sammen, oftest ved overgangen mellom stang og ring. Den elektriske virkningen av disse bruddene er den samme som ved en brutt stang. De forekommer oftere i store maskiner, i motorer som starter ofte, og ved belastninger med h\u00f8y treghet.<\/li>\n<li><strong>Sveiser med h\u00f8y motstand:<\/strong> En d\u00e5rlig elektrisk forbindelse mellom stangen og endringen, for\u00e5rsaket av produksjonsfeil, temperaturvekslinger eller korrosjon. Symptomene ligner p\u00e5 et brudd i stangen, men opptrer ofte sporadisk og gir mer subtile tegn enn et klart brudd.<\/li>\n<li><strong>Rotorens por\u00f8sitet:<\/strong> St\u00f8pehull i rotorer av trykkst\u00f8pt aluminium som reduserer leders effektivt tverrsnitt. Por\u00f8sitet er en produksjonsfeil som kan ligge latent i \u00e5revis f\u00f8r den utvikler seg til sprekker og brudd.<\/li>\n<\/ul>\n<h2>2. Hvorfor rotorstenger g\u00e5r i stykker<\/h2>\n<p>Feil p\u00e5 stenger skyldes en kombinasjon av termiske, mekaniske, produksjonsmessige og driftsmessige faktorer som forsterker hverandre gjennom motorens levetid.<\/p>\n<h3>Termisk belastning<\/h3>\n<p>Hver gang motoren startes og stoppes, gjennomg\u00e5r rotoren en syklus av utvidelse og sammentrekning. Siden aluminium utvider seg langt mer enn den omkringliggende jernkjernen, f\u00f8rer denne forskjellen i utvidelse til at stengene l\u00f8sner og at skj\u00f8tene utsettes for utmattingsbelastning. Hyppige startforl\u00f8p medf\u00f8rer gjentatte termiske sjokk, og ethvert punkt med h\u00f8y motstand blir et varmt punkt som fremskynder skaden.<\/p>\n<h3>Mekanisk belastning<\/h3>\n<p>Str\u00f8mf\u00f8rende skinner t\u00e5ler ogs\u00e5 <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/centrifugal-force\/\">sentrifugalkraft<\/a> (viktig i maskiner med h\u00f8y hastighet), pulserende elektromagnetiske krefter under normal drift og de store startstr\u00f8mmene som for\u00e5rsaker mekaniske st\u00f8t. Eksterne <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration-analysis\/\">vibrasjon<\/a> Kraften som overf\u00f8res fra den drevne lasten sliter ytterligere p\u00e5 stengene.<\/p>\n<h3>Produksjonsfeil og driftsforhold<\/h3>\n<p>Por\u00f8sitet i st\u00f8pegodset, svak binding mellom stang og endring, materialinneslutninger og mangelfull varmebehandling legger alle grunnlaget for senere svikt. Under drift er de st\u00f8rste problemene hyppige oppstarter, belastninger med h\u00f8y treghet og lange akselerasjonstider, situasjoner med fastl\u00e5st rotor og de ekstreme str\u00f8mstyrkene som f\u00f8lger med dette, samt enfasekj\u00f8ring \u2013 det vil si drift med \u00e9n forsyningsfase ute av drift, noe som tvinger frem et sv\u00e6rt asymmetrisk str\u00f8mm\u00f8nster gjennom burkonstruksjonen.<\/p>\n<h2>3. Vibrasjons- og str\u00f8msignaturen<\/h2>\n<p>Det karakteristiske diagnostiske kjennetegnet p\u00e5 skader p\u00e5 rotorstangen er en gruppe sideb\u00e5nd som er konsentrert rundt driftshastigheten.<\/p>\n<ul>\n<li><strong>Sentral topp:<\/strong> 1\u00d7 l\u00f8pehastighet (f<sub>r<\/sub>), den normale <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/running-speed\/\">kj\u00f8rehastighet<\/a> linje.<\/li>\n<li><strong>Sideb\u00e5nd:<\/strong> symmetriske par ved f<sub>r<\/sub> \u00b1 f<sub>s<\/sub>, f<sub>r<\/sub> \u00b1 2f<sub>s<\/sub>, f<sub>r<\/sub> \u00b1 3f<sub>s<\/sub>, hvor f<sub>s<\/sub> er den <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/slip-frequency\/\">slipfrekvens<\/a> (vanligvis 1\u20133 Hz).<\/li>\n<li><strong>M\u00f8nster:<\/strong> jevnt fordelte, symmetriske sideb\u00e5nd med glidefrekvensintervaller \u2014 helt ulikt sideb\u00e5ndene til <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/bearing-fault-frequencies\/\">lagerfeil<\/a>, som ligger rundt defektfrekvensene.<\/li>\n<\/ul>\n<h3>Beregning av glidefrekvensen<\/h3>\n<p>Slipfrekvensen er forskjellen mellom synkronhastigheten og den faktiske hastigheten, uttrykt i hertz: f<sub>s<\/sub> = (N<sub>synkronisering<\/sub> - N<sub>faktisk<\/sub>) \/ 60. La oss se p\u00e5 en 4-polet 60 Hz-motor med en synkronhastighet p\u00e5 1800 o\/min som g\u00e5r med 1750 o\/min under belastning. Da er f<sub>s<\/sub> = (1800 \u2212 1750) \/ 60 = 0,833 Hz, og linjen for frekvensforskyvning ligger p\u00e5 29,17 Hz. Sideb\u00e5ndene oppst\u00e5r derfor ved 29,17 \u00b1 0,833 Hz \u2013 det vil si ved 28,3 Hz og 30,0 Hz. A <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/harmonic-frequency-calculator\/\">Kalkulator for harmoniske frekvenser<\/a> og en <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/motor-slip-calculator\/\">kalkulator for motorslip<\/a> gj\u00f8r denne omstillingen enkel n\u00e5r du setter opp en m\u00e5ling p\u00e5 verkstedet.<\/p>\n<h3>Avhengighet av belastning<\/h3>\n<p>Fordi glidningen \u2013 og dermed str\u00f8mmen som g\u00e5r gjennom de \u00f8delagte stengene \u2013 \u00f8ker med belastningen, er sideb\u00e5ndene belastningsavhengige. Uten belastning er de minimale; ved lett belastning begynner de \u00e5 bli synlige; og ved full belastning er de p\u00e5 sitt sterkeste og lettest \u00e5 diagnostisere. Den praktiske regelen er enkel: Test alltid en motor som mistenkes for feil under normal driftsbelastning for \u00e5 oppn\u00e5 best mulig f\u00f8lsomhet.<\/p>\n<h3>Gjeldende sertifisering (MCSA)<\/h3>\n<p>Analyse av motorstr\u00f8msignaturer avsl\u00f8rer den samme fysikken p\u00e5 det elektriske omr\u00e5det. Her samler sideb\u00e5ndene seg rundt <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/electrical-frequency\/\">linjefrekvens<\/a> i stedet for l\u00f8pehastighet, og de vises ved f<sub>linje<\/sub> \u00b1 2f<sub>s<\/sub> \u2014 dobbelt s\u00e5 h\u00f8y glidefrekvens. For en 60 Hz-motor med 1 Hz glidefrekvens vil dette gi sideb\u00e5nd p\u00e5 58 Hz og 62 Hz. Amplituden \u00f8ker med antall \u00f8delagte ledninger, og i noen tilfeller oppdager MCSA feilen tidligere enn vibrasjonsm\u00e5linger gj\u00f8r. Den samme glidefrekvensrelaterte fysikken ligger til grunn for den tilh\u00f8rende <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/pole-pass-frequency\/\">frekvens for stangpassering<\/a> brukt i <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/electrical-faults\/\">elektrisk feil<\/a> diagnose.<\/p>\n<h2>4. P\u00e5visning, diagnose og feltm\u00e5ling<\/h2>\n<p>\u00c5 skille ut sideb\u00e5nd som ligger bare en br\u00f8kdel av en hertz fra en dominerende topp ved kj\u00f8rehastighet krever h\u00f8y frekvensoppl\u00f8sning. En systematisk fremgangsm\u00e5te er som f\u00f8lger:<\/p>\n<ol>\n<li><strong>Beregn det forventede m\u00f8nsteret:<\/strong> bestemme synkronhastigheten ut fra poler og nettfrekvens, m\u00e5le den faktiske driftshastigheten og beregne glidefrekvensen.<\/li>\n<li><strong>Ta et spektrum med h\u00f8y oppl\u00f8sning:<\/strong> bruk en fin <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/fft\/\">FFT<\/a> oppl\u00f8sning (bedre enn ca. 0,2 Hz), slik at sideb\u00e5ndene med liten avstand skiller seg tydelig fra 1\u00d7-linjen. A <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/fft-resolution-calculator\/\">Kalkulator for FFT-oppl\u00f8sning<\/a> hjelper deg med \u00e5 velge riktig spennvidde og antall linjer.<\/li>\n<li><strong>S\u00f8k etter sideb\u00e5nd:<\/strong> Se etter symmetriske topper ved 1\u00d7 \u00b1 glidefrekvensen og dens multipler.<\/li>\n<li><strong>Test under belastning:<\/strong> registrere data mens motoren er belastet med sin normale driftsbelastning.<\/li>\n<li><strong>Bekreft m\u00f8nsteret:<\/strong> Kontroller at sideb\u00e5ndene er symmetriske og har riktig avstand f\u00f8r du stiller en diagnose.<\/li>\n<\/ol>\n<p>Denne typen spektrumregistrering med h\u00f8y oppl\u00f8sning er akkurat det en b\u00e6rbar tokanalsm\u00e5ler som <a href=\"https:\/\/vibromera.eu\/nb\/produkt\/balanset-1\/\">Balanset-1A<\/a> er utviklet for. Ved \u00e5 operere i motorens egne lagre ved driftshastighet registrerer den driftshastighetskurven og dens sideb\u00e5nd for glidefrekvens direkte p\u00e5 den kj\u00f8rende maskinen, slik at du kan bekrefte en diagnose om brudd p\u00e5 stangen p\u00e5 stedet uten demontering, og deretter f\u00f8lge utviklingen over tid.<\/p>\n<h3>Alvorlighetsvurdering<\/h3>\n<p>En mye brukt tommelfingerregel graderer alvorlighetsgraden ut fra sideb\u00e5ndenes h\u00f8yde i forhold til 1\u00d7-toppen:<\/p>\n<ul>\n<li><strong>Sideb\u00e5nd under 40 % av 1\u00d7:<\/strong> muligens en enkelt sprukket eller \u00f8delagt stang \u2014 f\u00f8lg med p\u00e5 utviklingen.<\/li>\n<li><strong>40-60% av 1\u00d7:<\/strong> en eller flere stenger som er bekreftet \u00f8delagte \u2014 planlegg utskifting.<\/li>\n<li><strong>Over 60 % av 1\u00d7:<\/strong> Flere \u00f8delagte stenger \u2014 m\u00e5 skiftes ut snarest.<\/li>\n<li><strong>Sideb\u00e5nd som er h\u00f8yere enn 1\u00d7-toppen:<\/strong> en alvorlig tilstand som krever \u00f8yeblikkelig handling.<\/li>\n<\/ul>\n<h2>5. Konsekvenser og forl\u00f8p<\/h2>\n<p>Hvis man ikke gj\u00f8r noe med det, forblir en enkelt feil sjelden alene. Skaden utvikler seg gjennom tydelige stadier:<\/p>\n<ul>\n<li><strong>F\u00f8rste feil (\u00e9n strek):<\/strong> svake dreiemomentpulseringer, sm\u00e5 sideb\u00e5nd som dukker opp og minimalt ytelsestap. En motor kan g\u00e5 i flere m\u00e5neder i denne tilstanden.<\/li>\n<li><strong>Gradvis svikt (flere streker):<\/strong> Str\u00f8mmen som skulle ha g\u00e5tt gjennom den \u00f8delagte stangen, ledes over til nabostengene og f\u00f8rer til overoppheting av disse; termisk belastning f\u00f8rer deretter til at ogs\u00e5 disse stengene brytes. Momentpulseringer og vibrasjoner \u00f8ker, og en maskin kan g\u00e5 i stykker p\u00e5 grunn av \u00e9n eller flere \u00f8delagte stenger i l\u00f8pet av f\u00e5 uker.<\/li>\n<li><strong>Alvorlig tilstand:<\/strong> Flere brudd i p\u00e5f\u00f8lgende stenger f\u00f8rer til kraftige dreiemomentpulseringer, sterke vibrasjoner og st\u00f8y, samt overoppheting av rotoren. Det ender med fullstendig rotorhavari, med reell fare for f\u00f8lgeskader <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/stator-defects\/\">stator<\/a> skader for\u00e5rsaket av for sterke sirkulasjonsstr\u00f8mmer.<\/li>\n<\/ul>\n<h2>6. Korrigerende tiltak og forebygging<\/h2>\n<p>N\u00e5r en feil er bekreftet, er l\u00f8sningen \u00e5 h\u00e5ndtere den m\u00e5lrettet i stedet for \u00e5 vente p\u00e5 at systemet skal svikte:<\/p>\n<ul>\n<li><strong>Ved deteksjon:<\/strong> \u00f8ke overv\u00e5kingsfrekvensen (fra m\u00e5nedlig til ukentlig), bekrefte diagnosen ved hjelp av MCSA, planlegge utskifting av motor eller rotor, ha en reserve klar til bruk i kritiske situasjoner og unders\u00f8ke hvorfor stengene brakk i utgangspunktet.<\/li>\n<li><strong>Reparasjonsalternativer:<\/strong> Utskifting av rotoren er den mest p\u00e5litelige l\u00f8sningen for store maskiner; fullstendig utskifting av motoren er ofte den mest \u00f8konomiske l\u00f8sningen for sm\u00e5 maskiner; spesialforretninger kan st\u00f8pe nye aluminiumrotorer; og selv om \u00e9n enkelt stang er \u00f8delagt, kan maskinen i noen tilfeller fortsette \u00e5 v\u00e6re i drift under n\u00f8ye overv\u00e5king.<\/li>\n<li><strong>Forebygging:<\/strong> Minimer hyppige start med mykstartere eller frekvensomformere, unng\u00e5 enfaset drift, s\u00f8rg for tilstrekkelig ventilasjon og kj\u00f8ling, velg motorer som er dimensjonert for den faktiske driftscyklussen, og sats p\u00e5 tidlig feiloppdagelse for \u00e5 kunne gripe inn f\u00f8r feilen forverres.<\/li>\n<\/ul>\n<p>Feil i rotorstangen er blant de feilene i motorer som er lettest \u00e5 diagnostisere: De karakteristiske sideb\u00e5ndene i glidefrekvensen gj\u00f8r at de kan oppdages p\u00e5litelig b\u00e5de gjennom <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration-diagnostics\/\">vibrasjonsdiagnostikk<\/a> og l\u00f8pende analyse. Ved \u00e5 oppdage dem tidlig kan man forhindre at en potensiell katastrofal rotorfeil og langvarig uplanlagt driftsstans blir til en planlagt og h\u00e5ndterbar reparasjon.<\/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 rotorstangdefekter i kortslutningsmotorer, inkludert \u00f8delagte stenger og sprukne enderinger, som kan oppdages gjennom slipfrekvenssideb\u00e5nd i vibrasjons- og str\u00f8manalyse.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-215","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/215","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\/215\/revisions"}],"predecessor-version":[{"id":101402,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/215\/revisions\/101402"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}