{"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\/ro\/glossary\/electrical-frequency\/","title":{"rendered":"Ce este frecven\u021ba electric\u0103? Frecven\u021ba de linie \u00een motoare"},"content":{"rendered":"<h1>\u00cen\u021belegerea frecven\u021bei electrice \u00een motoare<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Senzor optic (tahometru cu laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Baza magnetic\u0103.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=1852\" 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class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/111?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" 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data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Frecven\u021ba electric\u0103<\/strong> \u2014 numit\u0103 \u0219i frecven\u021ba re\u021belei, frecven\u021ba de alimentare sau frecven\u021ba de re\u021bea \u2014 este frecven\u021ba curentului alternativ furnizat motoarelor electrice \u0219i altor echipamente electrice. Dou\u0103 standarde domin\u0103 la nivel mondial: 60 Hz \u00een America de Nord, \u00een unele zone din America de Sud \u0219i \u00een unele \u021b\u0103ri asiatice, \u0219i 50 Hz \u00een Europa, \u00een cea mai mare parte a Asiei, \u00een Africa \u0219i \u00een Australia. Acest singur num\u0103r stabile\u0219te tura\u021bia sincron\u0103 a fiec\u0103rui motor de curent alternativ conectat la re\u021bea \u0219i genereaz\u0103 o familie de for\u021be electromagnetice \u2014 \u0219i, prin urmare, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> componente \u2014 la multipli ai frecven\u021bei re\u021belei.<\/p>\n<p>\u00cen motor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration-analysis\/\">analiza vibra\u021biilor<\/a>, frecven\u021ba re\u021belei \u0219i armonicile sale, \u00een special dublul frecven\u021bei re\u021belei (2\u00d7f), sunt indicatori de diagnostic esen\u021biali pentru problemele electromagnetice, defectele statorului \u0219i neregularit\u0103\u021bile \u00eentrefierului. Citirea lor corect\u0103 este ceea ce \u00eei permite unui analist s\u0103 disting\u0103 un defect electric de unul mecanic \u00een acela\u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectru<\/a>.<\/p>\n<h2>1. Rela\u021bia cu tura\u021bia motorului<\/h2>\n<h3>Tura\u021bie sincron\u0103<\/h3>\n<p>Pentru un motor asincron de curent alternativ, tura\u021bia sincron\u0103 a c\u00e2mpului magnetic rotitor este determinat\u0103 de frecven\u021ba re\u021belei \u0219i de num\u0103rul de poli:<\/p>\n<blockquote><p>N<sub>sincron<\/sub> = (120 \u00d7 f) \/ P&nbsp;&nbsp;\u2014 unde N<sub>sincron<\/sub> este tura\u021bia sincron\u0103 \u00een RPM, f este frecven\u021ba electric\u0103 \u00een Hz, iar P este num\u0103rul de poli.<\/p><\/blockquote>\n<p>The actual <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/running-speed\/\">vitez\u0103 de func\u021bionare<\/a> este \u00eentotdeauna pu\u021bin sub tura\u021bia sincron\u0103, deoarece un rotor de induc\u021bie trebuie s\u0103 alunece pentru a dezvolta cuplu.<\/p>\n<h3>Tura\u021bii uzuale ale motoarelor<\/h3>\n<p>On a <strong>60 Hz<\/strong> alimentare, tura\u021biile sincrone sunt de 3600 RPM pentru un motor cu 2 poli (aproximativ 3550 RPM \u00een func\u021bionare), 1800 RPM pentru unul cu 4 poli (aproximativ 1750 RPM), 1200 RPM pentru unul cu 6 poli (aproximativ 1170 RPM) \u0219i 900 RPM pentru unul cu 8 poli (aproximativ 875 RPM). La o <strong>50 Hz<\/strong> alimentare, acelea\u0219i numere de poli dau 3000 RPM (aproximativ 2950 RPM \u00een realitate), 1500 RPM (aproximativ 1450), 1000 RPM (aproximativ 970) \u0219i 750 RPM (aproximativ 730). <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/motor-slip-calculator\/\">calculator de alunecare a motorului \u0219i tura\u021bie real\u0103<\/a> transform\u0103 datele de pe pl\u0103cu\u021ba de identificare \u0219i o tura\u021bie m\u0103surat\u0103 direct \u00een aceste valori.<\/p>\n<h3>Frecven\u021ba de alunecare<\/h3>\n<p>Diferen\u021ba dintre tura\u021bia sincron\u0103 \u0219i cea real\u0103 define\u0219te <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/slip-frequency\/\">frecven\u021ba de alunecare<\/a>:<\/p>\n<blockquote><p>f<sub>s<\/sub> = (N<sub>sincron<\/sub> \u2212 N<sub>real<\/sub>) \/ 60<\/p><\/blockquote>\n<ul>\n<li>De regul\u0103, alunecarea este de 1\u20135% din tura\u021bia sincron\u0103.<\/li>\n<li>Frecven\u021ba de alunecare rezultat\u0103 este de obicei de doar 1\u20133 Hz.<\/li>\n<li>Ea depinde de sarcin\u0103 \u2014 alunecarea cre\u0219te pe m\u0103sur\u0103 ce motorul lucreaz\u0103 mai intens.<\/li>\n<li>Ea este esen\u021bial\u0103 pentru diagnosticarea defectelor electrice ale rotorului, deoarece defectele barelor rotorice moduleaz\u0103 vibra\u021bia la frecven\u021ba de trecere a polilor, care reprezint\u0103 alunecarea \u00eenmul\u021bit\u0103 cu num\u0103rul de poli.<\/li>\n<\/ul>\n<h2>2. Componente de vibra\u021bii electromagnetice<\/h2>\n<h3>Dublul frecven\u021bei re\u021belei (componenta dominant\u0103)<\/h3>\n<p>Cea mai important\u0103 component\u0103 electromagnetic\u0103 se afl\u0103 la 2\u00d7f \u2014 120 Hz la o alimentare de 60 Hz, 100 Hz la o alimentare de 50 Hz. Ea apare deoarece atrac\u021bia magnetic\u0103 dintre stator \u0219i rotor pulseaz\u0103 de dou\u0103 ori pe ciclu electric. O cantitate mic\u0103 este normal\u0103 la orice motor de curent alternativ, astfel \u00eenc\u00e2t simpla sa prezen\u021b\u0103 nu reprezint\u0103 un defect; o component\u0103 2\u00d7f ridicat\u0103 \u0219i \u00een cre\u0219tere indic\u0103 \u00eens\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/stator-defects\/\">probleme cu statorul<\/a>, an uneven <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/air-gap\/\">\u00eentrefier<\/a>, sau dezechilibru magnetic.<\/p>\n<h3>Frecven\u021ba re\u021belei (1\u00d7f)<\/h3>\n<p>O component\u0103 la frecven\u021ba re\u021belei propriu-zise \u2014 50 sau 60 Hz \u2014 are de obicei o amplitudine mai mic\u0103 dec\u00e2t 2\u00d7f. Ea poate dezv\u0103lui un dezechilibru al tensiunii de alimentare \u0219i poate \u00eenso\u021bi defecte ale \u00eenf\u0103\u0219ur\u0103rii statorice.<\/p>\n<h3>Armonice superioare<\/h3>\n<p>Componentele la 4\u00d7f, 6\u00d7f \u0219i mai sus (240 Hz, 360 Hz la un sistem de 60 Hz) sunt de regul\u0103 reduse la un motor s\u0103n\u0103tos. Atunci c\u00e2nd cresc, ele pot indica probleme ale \u00eenf\u0103\u0219ur\u0103rii sau probleme ale tolelor miezului.<\/p>\n<h2>3. Importan\u021ba diagnostic\u0103<\/h2>\n<h3>Amplitudine normal\u0103 2\u00d7f<\/h3>\n<p>La un motor s\u0103n\u0103tos, componenta 2\u00d7f este de obicei sub aproximativ 10% din nivelul 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/running-speed\/\">viteza de func\u021bionare<\/a> , r\u0103m\u00e2ne relativ constant\u0103 \u00een timp \u0219i apare \u00een toate direc\u021biile, de\u0219i este adesea cea mai puternic\u0103 pe direc\u021bie radial\u0103. Stabilirea acelui nivel normal este ceea ce face ca o cre\u0219tere ulterioar\u0103 s\u0103 fie semnificativ\u0103.<\/p>\n<h3>Componenta 2\u00d7f ridicat\u0103 \u0219i ce \u00eenseamn\u0103 aceasta<\/h3>\n<ul>\n<li><strong>Probleme ale \u00eenf\u0103\u0219ur\u0103rii statorului:<\/strong> scurtcircuitele dintre spire sau dezechilibrul de faz\u0103 cresc componenta 2\u00d7f \u00een timp, adesea \u00eenso\u021bite de o cre\u0219tere a temperaturii \u0219i de un dezechilibru de curent m\u0103surabil \u00eentre faze.<\/li>\n<li><strong>Excentricitatea \u00eentrefierului:<\/strong> un \u00eentrefier neuniform fa\u021b\u0103 de rotor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/eccentricity\/\">excentricitate<\/a> sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bearing-wear\/\">uzura rulmen\u021bilor<\/a> genereaz\u0103 dezechilibru <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/magnetic-pull\/\">atrac\u021bie magnetic\u0103<\/a>, cresc\u00e2nd 2\u00d7f \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/pole-pass-frequency\/\">frecven\u021be de trecere a polilor<\/a> \u00eempreun\u0103 \u2014 o combina\u021bie de efecte mecanice \u0219i electromagnetice.<\/li>\n<li><strong>Picior moale sau rezonan\u021b\u0103 de cadru:<\/strong> if a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/soft-foot\/\">picior moale<\/a> sau cea a cadrului&#8217; <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/natural-frequency\/\">frecven\u021b\u0103 natural\u0103<\/a> lies near 2\u00d7f, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/resonance\/\">rezonan\u021b\u0103 structural\u0103<\/a> amplific\u0103 vibra\u021bia electromagnetic\u0103; vibra\u021bia cadrului dep\u0103\u0219e\u0219te atunci cu mult vibra\u021bia lag\u0103rului, iar solu\u021bia const\u0103 \u00een rigidizarea structural\u0103 sau ad\u0103ugarea de amortizare.<\/li>\n<\/ul>\n<h2>4. Convertoare de frecven\u021b\u0103 variabil\u0103<\/h2>\n<p>Un VFD variaz\u0103 \u00een mod deliberat frecven\u021ba de ie\u0219ire \u2014 de obicei 0\u2013120 Hz \u2014 iar tura\u021bia motorului o urmeaz\u0103, astfel \u00eenc\u00e2t fiecare frecven\u021b\u0103 electromagnetic\u0103, inclusiv 2\u00d7f \u0219i componentele de trecere a polilor, se scaleaz\u0103 \u00een func\u021bie de ie\u0219irea convertizorului, \u00een loc s\u0103 r\u0103m\u00e2n\u0103 la o valoare fix\u0103 de 50 sau 60 Hz. Aceast\u0103 mobilitate are consecin\u021be practice asupra vibra\u021biei:<\/p>\n<ul>\n<li><strong>Frecven\u021be de comutare:<\/strong> purt\u0103toarea PWM injecteaz\u0103 componente \u00een domeniul kHz peste frecven\u021ba fundamental\u0103.<\/li>\n<li><strong>Curen\u021bi prin lag\u0103re:<\/strong> curen\u021bii de \u00eenalt\u0103 frecven\u021b\u0103 pot ciupi \u0219i estria lag\u0103rele dac\u0103 arborele nu este \u00eemp\u0103m\u00e2ntat corespunz\u0103tor.<\/li>\n<li><strong>Vibra\u021bii de torsiune:<\/strong> pulsa\u021biile de cuplu apar la diverse frecven\u021be.<\/li>\n<li><strong>Excitarea rezonan\u021bei:<\/strong> o tura\u021bie variabil\u0103 baleiat\u0103 poate trece prin rezonan\u021be structurale \u0219i poate amplifica momentan vibra\u021bia.<\/li>\n<\/ul>\n<h2>5. Exemple practice de diagnosticare<\/h2>\n<h3>Cazul 1 \u2014 vibra\u021bie ridicat\u0103 la 2\u00d7f<\/h3>\n<p>Un motor cu 4 poli la 60 Hz, care func\u021bioneaz\u0103 \u00een jurul a 1750 RPM, prezint\u0103 o component\u0103 de 120 Hz la 6 mm\/s, mult peste nivelul s\u0103u de 1\u00d7 tura\u021bia de func\u021bionare, de aproximativ 2 mm\/s. \u00centruc\u00e2t energia este concentrat\u0103 la dublul frecven\u021bei re\u021belei, mai degrab\u0103 dec\u00e2t la tura\u021bia de func\u021bionare, indica\u021bia sugereaz\u0103 o problem\u0103 a \u00eenf\u0103\u0219ur\u0103rii statorului sau o excentricitate a \u00eentrefierului, mai degrab\u0103 dec\u00e2t una mecanic\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>. Termografia relev\u0103 apoi un punct fierbinte \u00een stator \u0219i se m\u0103soar\u0103 un dezechilibru de curent \u00eentre faze, confirm\u00e2nd diagnosticul; ac\u021biunea corectiv\u0103 const\u0103 \u00een rebobinarea sau \u00eenlocuirea motorului.<\/p>\n<h3>Cazul 2 \u2014 benzi laterale \u00een jurul frecven\u021bei de rota\u021bie<\/h3>\n<p>V\u00e2rfurile apar la 1\u00d7 \u00b1 distan\u021ba asociat\u0103 alunec\u0103rii (c\u00e2\u021biva Hz), semn\u0103tura tipic\u0103 a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/broken-rotor-bars\/\">bare de rotor rupte<\/a>. Analiza semn\u0103turii curentului motorului arat\u0103 acela\u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sidebands\/\">band\u0103 lateral\u0103<\/a> tipar \u00een curentul de alimentare, iar urm\u0103rirea \u00een timp a amplitudinii benzilor laterale ofer\u0103 timpul necesar pentru a planifica o \u00eenlocuire. Ambele cazuri se \u00eencadreaz\u0103 \u00een familia mai larg\u0103 a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/electrical-faults\/\">defec\u021biuni electrice<\/a> pe care analiza vibra\u021biilor este bine pozi\u021bionat\u0103 s\u0103 le separe de cele mecanice.<\/p>\n<h2>6. Bune practici de monitorizare<\/h2>\n<h3>Spectrum setup<\/h3>\n<p>Seta\u021bi frecven\u021ba maxim\u0103 peste 500 Hz, astfel \u00eenc\u00e2t analiza s\u0103 capteze 2\u00d7f \u0219i armonicele sale, \u0219i alege\u021bi o rezolu\u021bie suficient\u0103 pentru a separa benzile laterale apropiate \u2014 mai bun\u0103 dec\u00e2t aproximativ 0,5 Hz pentru lucrul cu frecven\u021ba de alunecare. M\u0103sura\u021bi orizontal, vertical \u0219i axial, \u00eentruc\u00e2t componentele electromagnetice \u0219i mecanice se distribuie diferit \u00eentre direc\u021bii.<\/p>\n<h3>Valori de referin\u021b\u0103 \u0219i urm\u0103rire a tendin\u021belor<\/h3>\n<p>\u00cenregistra\u021bi amplitudinea 2\u00d7f atunci c\u00e2nd un motor este nou sau abia rebobinat, stabili\u021bi nivelurile normale pentru fiecare tip de motor din unitate \u0219i seta\u021bi limitele de alarm\u0103 \u2014 de regul\u0103 de dou\u0103 p\u00e2n\u0103 la trei ori <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/baseline\/\">linie de baz\u0103<\/a> pentru 2\u00d7f. Apoi urm\u0103ri\u021bi tendin\u021ba parametrilor care conteaz\u0103: amplitudinea de la dublul frecven\u021bei re\u021belei, componentele de trecere a polilor, amplitudinile \u0219i tiparele benzilor laterale, nivelul general de vibra\u021bie \u0219i indicatorii obi\u0219nui\u021bi ai st\u0103rii rulmen\u021bilor. Urm\u0103rirea modului \u00een care aceste valori evolueaz\u0103 \u00een timp, printr-o monitorizare disciplinat\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/trend-analysis\/\">analiza tendin\u021belor<\/a>, este ceea ce transform\u0103 un singur spectru \u00eentr-un avertisment timpuriu.<\/p>\n<h2>7. M\u0103surarea \u00een teren<\/h2>\n<p>Separarea unei semn\u0103turi electrice de una mecanic\u0103 \u00eencepe cu o m\u0103surare curat\u0103 a amplitudinii, frecven\u021bei \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">faz\u0103<\/a> la ma\u0219in\u0103. Un instrument portabil cu dou\u0103 canale, precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> capteaz\u0103 spectrul FFT \u0219i referin\u021ba sincron\u0103 necesar\u0103 pentru a plasa cu precizie aceste componente fa\u021b\u0103 de tura\u021bia de func\u021bionare \u0219i armonicile acesteia, ajut\u00e2nd la confirmarea faptului c\u0103 un v\u00e2rf din apropierea valorii de 100 sau 120 Hz este electromagnetic sau pur \u0219i simplu un r\u0103spuns structural. Iar odat\u0103 ce o cauz\u0103 electric\u0103 a fost exclus\u0103 \u0219i dezechilibrul rezidual <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a> este identificat drept adev\u0103rata cauz\u0103 a vibra\u021biei de 1\u00d7, acela\u0219i instrument efectueaz\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrarea-campului\/\">echilibrarea la fa\u021ba locului<\/a> care o corecteaz\u0103 \u2014 f\u0103c\u00e2nd cuno\u0219tin\u021bele despre frecven\u021ba re\u021belei direct aplicabile \u00een atelier.<\/p>\n<p>Frecven\u021ba electric\u0103 este fundamental\u0103 pentru \u00een\u021belegerea modului \u00een care func\u021bioneaz\u0103 un motor de curent alternativ \u0219i a modului \u00een care se defecteaz\u0103. Recunoa\u0219terea componentelor de la frecven\u021ba re\u021belei \u2014 \u00een primul r\u00e2nd 2\u00d7f \u2014 \u00eentr-un spectru de vibra\u021bie \u0219i cunoa\u0219terea fenomenelor electromagnetice din spatele lor permit unui analist s\u0103 traseze linia crucial\u0103 dintre defectele mecanice \u0219i cele electrice \u0219i s\u0103 orienteze ac\u021biunea de diagnosticare \u0219i corectare potrivit\u0103.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre frecven\u021ba electric\u0103 (frecven\u021ba re\u021belei), frecven\u021ba aliment\u0103rii cu curent alternativ care determin\u0103 viteza sincron\u0103 a motorului \u0219i creeaz\u0103 componente caracteristice de vibra\u021bie la o frecven\u021b\u0103 de 2X cea a re\u021belei.<\/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\/ro\/wp-json\/wp\/v2\/glossary\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/111\/revisions"}],"predecessor-version":[{"id":101332,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/111\/revisions\/101332"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}