{"id":111,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/electrical-frequency\/"},"modified":"2026-05-23T22:42:52","modified_gmt":"2026-05-23T22:42:52","slug":"electrical-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/da\/glossary\/electrical-frequency\/","title":{"rendered":"Hvad er elektrisk frekvens? Netfrekvens i motorer"},"content":{"rendered":"<h1>Forst\u00e5else af elektrisk frekvens i motorer<\/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\/da\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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 komplet s\u00e6t med b\u00e6rbar afbalanceringsenhed og vibrationsanalysator\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator Balanset-1A\">B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"L\u00e6g i kurv: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">\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 vibrationssensor i n\u00e6rbillede\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">Vibrationssensor<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"L\u00e6g i kurv: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">\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 (laser-tachometer)\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">Optisk sensor (laser-tachometer)<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"L\u00e6g i kurv: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/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 rotorbalanceringss\u00e6t: b\u00e6retaske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrationssensorer 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"L\u00e6g i kurv: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/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=\"Magnetbase.\" 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, 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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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &quot;Balanset-1A&quot; OEM\">Dynamisk balancer \"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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"L\u00e6g i kurv: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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>Elektrisk frekvens<\/strong> \u2014 ogs\u00e5 kaldet linjefrekevens, netfrekvens eller forsyningsfrekvens \u2014 er frekvensen af den vekselstr\u00f8m, der leveres til elektriske motorer og andet elektrisk udstyr. To standarder dominerer verden over: 60 Hz i Nordamerika, dele af Sydamerika og nogle asiatiske lande, og 50 Hz i hele Europa, det meste af Asien, Afrika og Australien. Dette enkelte tal fasts\u00e6tter den synkrone hastighed for hver vekselstr\u00f8msmotor p\u00e5 forsyningen og genererer en familie af elektromagnetiske kr\u00e6fter \u2014 og derfor <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration\/\">vibrationer<\/a> komponenter \u2014 ved multipla af linjefrekevens.<\/p>\n<p>I motor <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration-analysis\/\">Vibrationsanalyse<\/a>, linjefrekevensen og dens harmoniske, is\u00e6r dobbelt linjefrekevens (2\u00d7f), er vigtige diagnostiske indikatorer for elektromagnetiske problemer, statorviklinger fejl og luftspalteregulariteter. At l\u00e6se dem korrekt er hvad der g\u00f8r en analytiker i stand til at skelne en elektrisk fejl fra en mekanisk i samme <a href=\"https:\/\/vibromera.eu\/da\/glossary\/spectrum\/\">spektrum<\/a>.<\/p>\n<h2>1. Forhold til motorhastighed<\/h2>\n<h3>Synkron hastighed<\/h3>\n<p>For en AC-induktionsmotor er den synkrone hastighed for det roterende magnetfelt fastsat af linjefrekvensen og antallet af poler:<\/p>\n<blockquote><p>N<sub>synkronisering<\/sub> = (120 \u00d7 f) \/ P&nbsp;&nbsp;\u2014 hvor N<sub>synkronisering<\/sub> er synkron hastighed i RPM, f er elektrisk frekvens i Hz, og P er antallet af poler.<\/p><\/blockquote>\n<p>The actual <a href=\"https:\/\/vibromera.eu\/da\/glossary\/running-speed\/\">l\u00f8behastighed<\/a> falder altid en smule under den synkrone hastighed, fordi en induktionsrotor skal glide for at udvikle moment.<\/p>\n<h3>Almindelige motorhastigheder<\/h3>\n<p>On a <strong>60 Hz<\/strong> giver de synkrone hastigheder 3600 RPM for en 2-polet motor (cirka 3550 RPM i drift), 1800 RPM for en 4-polet (cirka 1750 RPM), 1200 RPM for en 6-polet (cirka 1170 RPM) og 900 RPM for en 8-polet (cirka 875 RPM). P\u00e5 et <strong>50 Hz<\/strong> giver de samme poltal 3000 RPM (cirka 2950 RPM faktisk), 1500 RPM (cirka 1450), 1000 RPM (cirka 970) og 750 RPM (cirka 730). Det <a href=\"https:\/\/vibromera.eu\/da\/calculators\/motor-slip-calculator\/\">motor slip og faktisk RPM-kalkulator<\/a> omdanner et motorskilt og en m\u00e5lt hastighed direkte til disse v\u00e6rdier.<\/p>\n<h3>Slipfrekvens<\/h3>\n<p>Gabet mellem synkron og faktisk hastighed definerer <a href=\"https:\/\/vibromera.eu\/da\/glossary\/slip-frequency\/\">slipfrekvens<\/a>:<\/p>\n<blockquote><p>f<sub>s<\/sub> = (N<sub>synkronisering<\/sub> \u2212 N<sub>faktisk<\/sub>) \/ 60<\/p><\/blockquote>\n<ul>\n<li>Typisk slip l\u00f8ber 1\u20135% af synkron hastighed.<\/li>\n<li>Den resulterende slip-frekvens er normalt kun 1\u20133 Hz.<\/li>\n<li>Det er belastningsafh\u00e6ngigt \u2014 slip stiger, n\u00e5r motoren arbejder h\u00e5rdere.<\/li>\n<li>Det er centralt for diagnosticering af rotor-elektriske fejl, fordi rotor-stang-fejl modulerer vibrationerne ved pol-pass-frekvensen, som er slip ganget med antallet af poler.<\/li>\n<\/ul>\n<h2>2. Elektromagnetiske vibrationkomponenter<\/h2>\n<h3>Det dobbelte af linjefrekvensen (den dominerende komponent)<\/h3>\n<p>The most important electromagnetic component sits at 2\u00d7f \u2014 120 Hz on a 60 Hz supply, 100 Hz on a 50 Hz supply. It arises because the magnetic attraction between stator and rotor pulsates twice per electrical cycle. A small amount is normal in every AC motor, so its mere presence is not a fault; an elevated and rising 2\u00d7f, however, points to <a href=\"https:\/\/vibromera.eu\/da\/glossary\/stator-defects\/\">Statorproblemer<\/a>, an uneven <a href=\"https:\/\/vibromera.eu\/da\/glossary\/air-gap\/\">luftspalte<\/a>, eller magnetisk ubalance.<\/p>\n<h3>Linjefrekvens (1\u00d7f)<\/h3>\n<p>En komponent ved selve linjefrekvensen \u2014 50 eller 60 Hz \u2014 har normalt lavere amplitude end 2\u00d7f. Det kan r\u00f8be en forsyningssp\u00e6ndings-ubalance og kan ledsages af stator-vikling-fejl.<\/p>\n<h3>H\u00f8jere harmoniske<\/h3>\n<p>Components at 4\u00d7f, 6\u00d7f and beyond (240 Hz, 360 Hz on a 60 Hz system) are typically low in a healthy motor. When they grow they can indicate winding problems or core-lamination issues.<\/p>\n<h2>3. Diagnostisk betydning<\/h2>\n<h3>Normal 2\u00d7f amplitude<\/h3>\n<p>In a sound motor the 2\u00d7f component is typically under about 10% of the 1\u00d7 <a href=\"https:\/\/vibromera.eu\/da\/glossary\/running-speed\/\">L\u00f8behastighed<\/a> niveau, der forbliver relativt konstant over tid, og optr\u00e6der i alle retninger, selvom det ofte er st\u00e6rkest radialt. At fastsl\u00e5, hvad normalt niveau er, g\u00f8r senere stigning betydningsfuld.<\/p>\n<h3>Forh\u00f8jet 2\u00d7f og hvad det betyder<\/h3>\n<ul>\n<li><strong>Problemer med statorviklingen:<\/strong> fej fra spole til spole eller faseubalance skubber 2\u00d7f op over tid, ofte med temperaturstigning og m\u00e5lbar str\u00f8mubalance mellem faser.<\/li>\n<li><strong>Ekscentricitet i luftgab:<\/strong> et ikke-uniformt gab fra rotor <a href=\"https:\/\/vibromera.eu\/da\/glossary\/eccentricity\/\">excentricitet<\/a> eller <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bearing-wear\/\">slid p\u00e5 lejer<\/a> skaber ubalance <a href=\"https:\/\/vibromera.eu\/da\/glossary\/magnetic-pull\/\">magnetisk tr\u00e6kkraft<\/a>, hvilket \u00f8ger 2\u00d7f og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/pole-pass-frequency\/\">pol-pass-frekvenser<\/a> sammen \u2014 en blanding af mekaniske og elektromagnetiske effekter.<\/li>\n<li><strong>Bl\u00f8d fod eller rammeresonans:<\/strong> if a <a href=\"https:\/\/vibromera.eu\/da\/glossary\/soft-foot\/\">bl\u00f8d fod<\/a> eller rammens <a href=\"https:\/\/vibromera.eu\/da\/glossary\/natural-frequency\/\">naturlig frekvens<\/a> lies near 2\u00d7f, <a href=\"https:\/\/vibromera.eu\/da\/glossary\/resonance\/\">strukturel resonans<\/a> forst\u00e6rker den elektromagnetiske vibration; rammevibrationen overstiger derefter langt lagerets vibration, og kuren er strukturel stivhed eller d\u00e6mpning.<\/li>\n<\/ul>\n<h2>4. Variabel-frekvens-drev<\/h2>\n<p>Et VFD varierer bevidst udgangsfrekvensen \u2014 almindeligvis 0\u2013120 Hz \u2014 og motoren f\u00f8lger hastigheden, s\u00e5 hver elektromagnetisk frekvens, herunder 2\u00d7f og pol-pass-komponenterne, skaleres med drevets udgang i stedet for at sidde ved en fast 50 eller 60 Hz. Denne fleksibilitet har praktiske konsekvenser for vibration:<\/p>\n<ul>\n<li><strong>Skiftningsfrekvenser:<\/strong> PWM-b\u00e6reren injicerer kHz-omr\u00e5de komponenter ovenp\u00e5 det fundamentale.<\/li>\n<li><strong>Lagerstr\u00f8mme:<\/strong> h\u00f8jfrekvente str\u00f8mme kan gribe og fugle lagerringe, hvis akslen ikke er korrekt jordet.<\/li>\n<li><strong>Torsionsvibrationer:<\/strong> drejningsmomentpulsationer optr\u00e6der ved forskellige frekvenser.<\/li>\n<li><strong>Resonansexcitation:<\/strong> en fejs\u00f8gt variabel hastighed kan passere gennem strukturelle resonanser og midlertidigt forst\u00e6rke vibration.<\/li>\n<\/ul>\n<h2>5. Praktiske diagnoseksempler<\/h2>\n<h3>Tilf\u00e6lde 1 \u2014 h\u00f8j 2\u00d7f vibration<\/h3>\n<p>En 4-polet 60 Hz motor, der k\u00f8rer t\u00e6t p\u00e5 1750 RPM, viser en 120 Hz komponent p\u00e5 6 mm\/s, langt over dens 1\u00d7 driftshastighed p\u00e5 omkring 2 mm\/s. Fordi energien er koncentreret ved to gange netfrekvensen snarere end ved driftshastighed, indikerer det et statorviklinger-problem eller luftspalte-excentricitet snarere end mekanisk <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a>. Termisk kameraafbildning afsl\u00f8rer derefter et varmt punkt i statoren, og der m\u00e5les en str\u00f8mubalance mellem faser, hvilket bekr\u00e6fter diagnosen; den korrigerende handling er at omvikle eller udskifte motoren.<\/p>\n<h3>Tilf\u00e6lde 2 \u2014 sideb\u00e5nd omkring driftshastighed<\/h3>\n<p>Peaks appear at 1\u00d7 \u00b1 the slip-related spacing (a couple of Hz), the textbook signature of <a href=\"https:\/\/vibromera.eu\/da\/glossary\/broken-rotor-bars\/\">kn\u00e6kkede rotorst\u00e6nger<\/a>. Motorstr\u00f8msignaturanalyse viser det samme <a href=\"https:\/\/vibromera.eu\/da\/glossary\/sidebands\/\">sideb\u00e5nd<\/a> m\u00f8nster i forsyningsstr\u00f8mmen, og sporing af sideb\u00e5ndsampletuden over tid giver ledetiden til at planl\u00e6gge en udskiftning. Begge tilf\u00e6lde ligger inden for den bredere familie af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/electrical-faults\/\">elektriske fejl<\/a> at vibrationsanalyse er godt placeret til at skelne fra mekaniske.<\/p>\n<h2>6. Overv\u00e5gning bedste praksis<\/h2>\n<h3>Spectrum setup<\/h3>\n<p>Indstil den maksimale frekvens over 500 Hz, s\u00e5 analysen fanger 2\u00d7f og dens harmoniske, og v\u00e6lg tilstr\u00e6kkelig opl\u00f8sning til at adskille t\u00e6t placerede sideb\u00e5nd \u2014 bedre end omkring 0,5 Hz opl\u00f8sning til slip-frekvensarbejde. M\u00e5l horisontalt, vertikalt og aksialt, da elektromagnetiske og mekaniske komponenter fordeler sig forskelligt mellem retninger.<\/p>\n<h3>Baseline og trendanalyse<\/h3>\n<p>Registrer 2\u00d7f amplituden, n\u00e5r en motor er ny eller frisktviklet, etabl\u00e9r normale niveauer for hver motortype i faciliteten, og indstil alarmgr\u00e6nser \u2014 typisk to til tre gange <a href=\"https:\/\/vibromera.eu\/da\/glossary\/baseline\/\">basislinje<\/a> for 2\u00d7f. Then trend the parameters that matter: the 2\u00d7 line-frequency amplitude, the pole-pass components, sideband amplitudes and patterns, the overall vibration level, and the usual bearing-condition indicators. Watching how those values move over time, through disciplined <a href=\"https:\/\/vibromera.eu\/da\/glossary\/trend-analysis\/\">trendanalyse<\/a>, er det, der konverterer et enkelt spektrum til en tidlig advarsel.<\/p>\n<h2>7. M\u00e5ling i felten<\/h2>\n<p>At adskille en elektrisk signatur fra en mekanisk starter med en ren m\u00e5ling af amplitude, frekvens og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/phase\/\">fase<\/a> ved maskinen. Et b\u00e6rbart to-kanals instrument som <a href=\"https:\/\/vibromera.eu\/da\/vare-2\/balanset-1\/\">Balanset-1A<\/a> fanger FFT-spektret og den synkrone referencelinjer, der er n\u00f8dvendige for pr\u00e6cist at placere disse komponenter i forhold til driftshastighed og dens harmoniske, hvilket hj\u00e6lper med at bekr\u00e6fte, om en top t\u00e6t p\u00e5 100 eller 120 Hz er elektromagnetisk eller blot en strukturel respons. Og n\u00e5r en elektrisk \u00e5rsag er blevet udelukket, og resterende <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a> identificeres som den virkelige \u00e5rsag til 1\u00d7 vibration, udf\u00f8rer det samme instrument <a href=\"https:\/\/vibromera.eu\/da\/glossary\/feltbalancering\/\">feltafbalancering<\/a> som korrigerer det \u2014 hvilket g\u00f8r linjefrekvens-viden direkte anvendelig p\u00e5 produktionsgulvet.<\/p>\n<p>Elektrisk frekvens er fundamental for at forst\u00e5, hvordan en AC-motor fungerer og hvordan den fejler. At genkende linjefrekvens-komponenter \u2014 is\u00e6r 2\u00d7f \u2014 i et vibrationsspektrum og kende de elektromagnetiske f\u00e6nomener bag dem, g\u00f8r det muligt for en analytiker at tr\u00e6kke den afg\u00f8rende gr\u00e6nse mellem mekaniske og elektriske fejl og styre den korrekte diagnostik og korrigerende handling.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/da\/glossary\/\">\u2190 Tilbage til hovedindekset<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om elektrisk frekvens (netfrekvens), vekselstr\u00f8msforsyningens frekvens, der bestemmer motorens synkrone hastighed og skaber karakteristiske vibrationskomponenter ved 2X netfrekvensen.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-111","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/111\/revisions"}],"predecessor-version":[{"id":101332,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/111\/revisions\/101332"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/media?parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/categories?post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/tags?post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}