{"id":197,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/pole-pass-frequency\/"},"modified":"2026-07-02T18:51:35","modified_gmt":"2026-07-02T18:51:35","slug":"pole-pass-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/hr\/glossary\/pole-pass-frequency\/","title":{"rendered":"\u0160to je frekvencija prolaza polova? Elektromagnetske sile motora"},"content":{"rendered":"<h1>Razumijevanje u\u010destalosti prolaska polova<\/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\/hr\/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\/hr\/product\/balanset-1\/\" title=\"Prijenosni balanser &amp; analizator vibracija 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 kompletan set prijenosnog balansera i analizatora vibracija\" 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\/hr\/product-category\/devices\/\" rel=\"tag\">ure\u0111aji<\/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\/hr\/product\/balanset-1\/\" title=\"Prijenosni balanser &amp; analizator vibracija Balanset-1A\">Portable balancer &amp; Vibration analyzer 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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Portable balancer &amp; Vibration analyzer Balanset-1A&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/vibration-sensor\/\" title=\"senzor vibracija\">\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=\"Detalj senzora vibracija 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/vibration-sensor\/\" title=\"senzor vibracija\">senzor vibracija<\/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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Vibration sensor&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dki senzor (laserski tahometar)\">\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=\"Opti\u010dki senzor (laserski tahometar)\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dki senzor (laserski tahometar)\">Opti\u010dki senzor (laserski tahometar)<\/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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Optical Sensor (Laser Tachometer)&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/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 komplet za balansiranje rotora: torba za no\u0161enje, vi\u0161ekanalni pretvara\u010d signala, ru\u010dni analizator, magnetska baza, senzori vibracija i spiralni kabeli.\" 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\/hr\/product-category\/devices\/\" rel=\"tag\">ure\u0111aji<\/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\/hr\/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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Balanset-4&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/magnet-stand\/\" title=\"Magnetski stalak Insize nosivosti 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=\"Magnetska baza.\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/magnet-stand\/\" title=\"Magnetski stalak Insize nosivosti 60 kgf\">Magnetski stalak Insize nosivosti 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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Magnetic Stand Insize-60-kgf&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/hr\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/hr\/product\/reflective-tape\/\" title=\"Reflektiraju\u0107a traka\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Reflektiraju\u0107a traka\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/reflective-tape\/\" title=\"Reflektiraju\u0107a traka\">Reflektiraju\u0107a traka<\/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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Reflective tape&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \u201cBalanset-1A\u201d 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=\"Sadr\u017eaj kompleta Balanset-1A s jedinicom za su\u010delje, senzorima, tahometrom i dodacima\" 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\/hr\/product-category\/devices\/\" rel=\"tag\">ure\u0111aji<\/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\/hr\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \u201cBalanset-1A\u201d OEM\">Dinami\u010dki balanser \u201cBalanset-1A\u201d 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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/197?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=\"Dodaj u ko\u0161aricu: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Dynamic balancer \u201cBalanset-1A\u201d OEM&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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>Frekvencija prolaza polova<\/strong> (PPF) je niskofrekventna <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/vibration\/\">vibracija<\/a> komponenta koju u AC asinkronom motoru stvara rotiraju\u0107e magnetsko polje dok klizi pokraj rotora. Izra\u010dunava se kao broj polova pomno\u017een s <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/slip-frequency\/\">frekvencija klizanja<\/a>: PPF = broj polova \u00d7 (sinkrona brzina \u2212 stvarna brzina) \/ 60. Budu\u0107i da je klizanje malo, PPF je vrlo niska frekvencija \u2014 obi\u010dno samo nekoliko herca \u2014 i obi\u010dno se ne pojavljuje kao samostalni vrh, nego kao <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/sidebands\/\">bo\u010dni pojasevi<\/a> raspore\u0111ene na razmaku PPF oko komponenti radne brzine i mre\u017ene frekvencije. Ta modulacija povezana s klizanjem sna\u017eno se poja\u010dava kada motor ima <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/air-gap\/\">zra\u010dni razmak<\/a> ekscentricitet, slomljene rotorske \u0161ipke ili problem poravnanja rotor\u2013stator. Zbog toga je PPF jedan od najkorisnijih alata za razlikovanje <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/electrical-faults\/\">elektri\u010dni kvarovi<\/a> od \u010disto mehani\u010dkih.<\/p>\n<p>PPF je dijagnosti\u010dki va\u017ean jer povi\u0161ene <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/sidebands\/\">bo\u010dni pojasevi<\/a> raspore\u0111ene na ovoj frekvencijskoj to\u010dki jasno upu\u0107uju na elektromagnetski problem \u2014 ekscentri\u010dni rotor, slomljene rotorske \u0161ipke, neujedna\u010den zra\u010dni raspor ili dinami\u010dku interakciju rotor\u2013stator \u2014 a ne na <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/unbalance\/\">neravnote\u017ea<\/a> ili <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/misalignment\/\">neuskla\u0111enost<\/a>. Pravilno o\u010ditana, pokazuje analiti\u010daru trebali li otvoriti motor ili tra\u017eiti drugdje u sustavu.<\/p>\n<h2>1. Izra\u010dunavanje frekvencije prolaska polova<\/h2>\n<h3>Osnovna formula<\/h3>\n<ul>\n<li><strong>PPF = P \u00d7 (N<sub>sync<\/sub> \u2212 N) \/ 60<\/strong><\/li>\n<li>Gdje <strong>P<\/strong> = broj polova,<\/li>\n<li><strong>N<sub>sync<\/sub><\/strong> = sinkrona brzina u RPM-u (N<sub>sync<\/sub> = 120 \u00d7 mre\u017ena frekvencija \/ P),<\/li>\n<li><strong>N<\/strong> = stvarna brzina rotora u RPM,<\/li>\n<li>a rezultat je u Hz. \u010clan (N<sub>sync<\/sub> \u2212 N) \/ 60 je frekvencija klizanja izra\u017eena u Hz.<\/li>\n<\/ul>\n<p>Imajte na umu da je PPF zasnovan na <em>razlika<\/em> izme\u0111u sinkrone i stvarne brzine \u2014 <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/slip-frequency\/\">klizanje<\/a>. Bez optere\u0107enja asinkroni motor radi gotovo sinkronom brzinom, pa se PPF pribli\u017eava nuli; kako optere\u0107enje raste, klizanje, a time i PPF, rastu s njim, obi\u010dno zavr\u0161avaju\u0107i u rasponu od pribli\u017eno 0.5\u20133.5 Hz pri nazivnom optere\u0107enju. Nemojte brkati PPF s \u010disto mehani\u010dkim redom P \u00d7 radna brzina (za 4-polni motor pri 1750 RPM to je oko 116.7 Hz) \u2014 to je harmonik brzine vratila, a ne frekvencija prolaska polova. Kada trebate brzo pretvoriti radnu brzinu u skup redova, na\u0161 <a href=\"https:\/\/vibromera.eu\/hr\/calculators\/harmonic-frequency-calculator\/\">Kalkulator harmonijske frekvencije<\/a> pretvara RPM u Hz kroz redove 1\u00d7\u201310\u00d7, a <a href=\"https:\/\/vibromera.eu\/hr\/calculators\/motor-electrical-frequencies\/\">Kalkulator u\u010destalosti elektri\u010dnih kvarova motora<\/a> prikazuje elektromagnetske frekvencije jedna pored druge.<\/p>\n<h3>Radni primjeri<\/h3>\n<p><strong>Motor s 4 pola pri 1750 RPM (napajanje 60 Hz):<\/strong><\/p>\n<ul>\n<li>Sinkrona brzina N<sub>sync<\/sub> = 120 \u00d7 60 \/ 4 = 1800 RPM.<\/li>\n<li>Frekvencija klizanja = (1800 \u2212 1750) \/ 60 = 0.83 Hz.<\/li>\n<li><strong>PPF = 4 \u00d7 (1800 \u2212 1750) \/ 60 = 3,33 Hz<\/strong><\/li>\n<li>U vibracijskom <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/spectrum\/\">spektar<\/a> pojavljuje se kao bo\u010dne trake razmaknute \u00b13.33 Hz oko vrha 1\u00d7 radne brzine (29.2 Hz) i oko dvostruke linijske frekvencije (120 Hz) \u2014 obrazac dijagnosti\u010dki za ekscentricitet i slomljene \u0161ipke rotora.<\/li>\n<\/ul>\n<p><strong>Motor s 6 polova pri 970 RPM (napajanje 50 Hz):<\/strong><\/p>\n<ul>\n<li>Sinkrona brzina N<sub>sync<\/sub> = 120 \u00d7 50 \/ 6 = 1000 RPM.<\/li>\n<li>Frekvencija klizanja = (1000 \u2212 970) \/ 60 = 0.5 Hz.<\/li>\n<li><strong>PPF = 6 \u00d7 (1000 \u2212 970) \/ 60 = 3,0 Hz<\/strong><\/li>\n<li>Bo\u010dne trake razmaknute samo \u00b13.0 Hz oko vrha 1\u00d7 (16.2 Hz) ili oko dvostruke linijske frekvencije (100 Hz) lako je previdjeti.<\/li>\n<li>Za njihovo razlu\u010divanje potrebna je pa\u017eljiva, visoko rezolucijska <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/spectral-analysis\/\">spektralna analiza<\/a>.<\/li>\n<\/ul>\n<h2>2. Fizi\u010dki mehanizam<\/h2>\n<h3>Kako se elektromagnetska sila stvara<\/h3>\n<p>Slijed doga\u0111aja koji stvara PPF je jasan:<\/p>\n<ol>\n<li>Namoti statora stvaraju magnetsko polje koje rotira sinkronom brzinom.<\/li>\n<li>To polje je organizirano u magnetske polove u N\u2013S\u2013N\u2013S obrascu.<\/li>\n<li>Rotor se vrti malo sporije zbog klizanja, pa polovi polja neprestano klize pokraj rotora umjesto da ostanu zaklju\u010dani s njim.<\/li>\n<li>Svaki put kada pol polja klizne pokraj odre\u0111enog mjesta na rotoru (\u0161ipka s visokim otporom, ekscentri\u010dna strana zra\u010dnog raspora), magnetska sila koja djeluje na to mjesto modulira se.<\/li>\n<li>S <strong>P<\/strong> polova, to mjesto bude pro\u0111eno <strong>P<\/strong> puta po ciklusu klizanja.<\/li>\n<li>Frekvencija rezultiraju\u0107e modulacije stoga je P \u00d7 frekvencija klizanja = PPF \u2014 sporo &#8220;udaranje&#8221; superponirano na vibracije radne brzine i mre\u017ene frekvencije.<\/li>\n<\/ol>\n<h3>Jednoliki zra\u010dni razmak \u2014 zdrav motor<\/h3>\n<ul>\n<li>Rotor je centriran u jezgri statora.<\/li>\n<li>Zra\u010dni razmak je jednolikan oko cijelog oboda.<\/li>\n<li>Magnetske sile su uravnote\u017eene i me\u0111usobno se poni\u0161tavaju.<\/li>\n<li>Modulacija povezana s PPF-om stoga je vrlo male amplitude.<\/li>\n<\/ul>\n<h3>Ekscentri\u010dni zra\u010dni razmak \u2014 neispravak motor<\/h3>\n<ul>\n<li>Rotor se nalazi izvan centra od <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bearing-wear\/\">istro\u0161enost le\u017eaja<\/a>, a <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bent-shaft\/\">iskrivljeni vrat<\/a>ili gre\u0161ke pri proizvodnji.<\/li>\n<li>Zra\u010dni razmak je manji s jedne strane i ve\u0107i sa suprotne.<\/li>\n<li>Magnetske sile postaju neuravnote\u017eene \u2014 ja\u010de gdje je razmak manji.<\/li>\n<li>Pojavljuje se neto radijalna sila \u2014 <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/magnetic-pull\/\">neuravnote\u017eenu magnetsku silu<\/a> \u2014 i modulira se pri PPF-u dok polovi polja klize pokraj u\u017ee strane raspora.<\/li>\n<li>Bo\u010dne trake razmaknute za PPF razvijaju se oko glavnih spektralnih vrhova i rastu s ozbiljno\u0161\u0107u problema.<\/li>\n<\/ul>\n<h2>3. Sporedne frekvencije i dijagnosti\u010dki obrasci<\/h2>\n<h3>Stati\u010dka ekscentri\u010dnost<\/h3>\n<p>Ovdje je sredi\u0161te rotora pomaknuto ali nepomi\u010dno u odnosu na stator:<\/p>\n<ul>\n<li><strong>Uzorak:<\/strong> povi\u0161ena komponenta na 2\u00d7 mre\u017ene frekvencije (100\/120 Hz); bo\u010dne trake prolaska polova slabe su ili ih nema jer se pomak ne okre\u0107e s vratilom.<\/li>\n<li><strong>Uzrok:<\/strong> istro\u0161enost le\u017eaja, deformacija okvira ili \u0161tita le\u017eaja ili pogre\u0161ka obrade u provrtu statora.<\/li>\n<li><strong>Amplituda:<\/strong> amplituda 2\u00d7 mre\u017ene frekvencije pokazuje ozbiljnost ekscentriciteta.<\/li>\n<\/ul>\n<h3>Dinami\u010dka ekscentri\u010dnost<\/h3>\n<p>U ovom slu\u010daju centar rotora kru\u017ei ili se vrti oko centra statora:<\/p>\n<ul>\n<li><strong>Uzorak:<\/strong> vrhovi 1\u00d7 radne brzine i 2\u00d7 linijske frekvencije s bo\u010dnim trakama razmaknutima za PPF (npr. \u00b13.33 Hz u gore navedenom primjeru s 4 pola).<\/li>\n<li><strong>Uzroci:<\/strong> savijeno vratilo, rotor <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/rotor-eccentricity\/\">ekscentri\u010dnost<\/a>, rotor\u2013stator <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/rotor-rub\/\">trljanje<\/a> ili le\u017eaj <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/looseness\/\">labavost<\/a>.<\/li>\n<li><strong>Ozbiljnije:<\/strong> signalizira aktivnu dinami\u010dku interakciju, a ne fiksni pomak. Ista obitelj bo\u010dnih traka prolaska polova oko 1\u00d7 i njegovih harmonika klasi\u010dan je potpis slomljenih \u0161ipki rotora.<\/li>\n<\/ul>\n<h3>Mje\u0161ovita ekscentri\u010dnost<\/h3>\n<ul>\n<li>Kombinacija stati\u010dkih i dinami\u010dkih efekata.<\/li>\n<li>To je naj\u010de\u0161\u0107e stanje prona\u0111eno u stvarnim motorima.<\/li>\n<li>Proizvodi slo\u017eite obrasce bo\u010dnih traka (sideband patterns).<\/li>\n<li>Potrebna je pa\u017eljiva analiza da se to ispravno tuma\u010di.<\/li>\n<\/ul>\n<h2>4. Interpretacija dijagnostike<\/h2>\n<p>Budu\u0107i da je PPF samo nekoliko herca, procjenjuje se prema ja\u010dini bo\u010dnih traka oko vrhova 1\u00d7 radne brzine i 2\u00d7 linijske frekvencije, \u010ditano kao kontinuum:<\/p>\n<h3>Niska \u2014 bo\u010dne trake prolaska polova jedva su vidljive iznad razine \u0161uma<\/h3>\n<ul>\n<li>Normalno stanje.<\/li>\n<li>Uniforman razmak zraka i dobra ekscentri\u010dnost rotor-stator.<\/li>\n<li>Nije potrebna nikakva koriste\u0107a mjera.<\/li>\n<\/ul>\n<h3>Umjerena \u2014 bo\u010dne trake jasno su vidljive, ali znatno ni\u017ee od vrha nositelja<\/h3>\n<ul>\n<li>Blaga neujedna\u010denost zra\u010dnog raspora ili rana degradacija rotorskog kruga.<\/li>\n<li>Pratite trend i provjerite stanje le\u017eaja.<\/li>\n<li>Provjerite polo\u017eaj rotora ako je dostupan.<\/li>\n<li>Nije odmah kriti\u010dno, ali zahtijeva pa\u017enju.<\/li>\n<\/ul>\n<h3>Visoka \u2014 bo\u010dne trake po amplitudi prilaze vrhu nositelja<\/h3>\n<ul>\n<li>Zna\u010dajan ekscentricitet, slomljene rotorske \u0161ipke ili problem zra\u010dnog raspora.<\/li>\n<li>Izra\u017eeno niskofrekventno &#8220;titranje&#8221; mo\u017ee se osjetiti ili \u010duti na PPF-u.<\/li>\n<li>Rizik od kontakta rotora s nepokretnim dijelom.<\/li>\n<li>Rastu\u0107i elektromagnetski silom koji ubrzavaju o\u0161te\u0107enje.<\/li>\n<li>Planirajte popravak ili zamjenu.<\/li>\n<\/ul>\n<p>U praksi analiti\u010dar rijetko procjenjuje PPF izolirano. Prijenosni analizator s dva kanala kao \u0161to je <a href=\"https:\/\/vibromera.eu\/hr\/proizvod\/balanset-1\/\">Balanset-1A<\/a>, kori\u0161ten na ku\u0107i\u0161tima le\u017eajeva, snima spektar i razlu\u010duje bo\u010dne trake prolaska polova oko 1\u00d7 i vrhova linijske frekvencije \u2014 i, jednako va\u017eno, potvr\u0111uje je li dominantna komponenta elektromagnetska ili jednostavan 1\u00d7 vrh mehani\u010dkog kvara. Ta razlika odre\u0111uje sve \u0161to slijedi: elektromagnetski potpis vodi vas u motor, dok \u010dist 1\u00d7 vrh koji nestane \u010dim se isklju\u010di napajanje upu\u0107uje na <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/unbalance\/\">neravnote\u017ea<\/a> mo\u017eete korigirati s <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/field-balancing\/\">terensko balansiranje<\/a> rotor na mjestu.<\/p>\n<h2>5. Odnos prema ostalim frekvencijama motora<\/h2>\n<p>PPF je jedan ton u popunjenom spektru motora, a prepoznavanje gdje se nalazi u odnosu na svoje susjede je pola bitke. Tipi\u010dna hijerarhija za motor s 4 pola, 1750 o\/min na napajanju od 60 Hz je:<\/p>\n<ul>\n<li><strong>Frekvencija klizanja:<\/strong> (1800 \u2212 1750) \/ 60 \u2248 0.83 Hz.<\/li>\n<li><strong>PPF:<\/strong> P \u00d7 frekvencija klizanja \u2014 ovdje oko 3.3 Hz, najni\u017ei ton u obitelji.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/hr\/glossary\/running-speed\/\">Brzina vrtnje<\/a> (1\u00d7):<\/strong> oko 29,2 Hz.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/hr\/glossary\/electrical-frequency\/\">Frekvencija mre\u017ee<\/a>:<\/strong> 60 Hz (ili 50 Hz u Europi).<\/li>\n<li><strong>Mehani\u010dki red rotora P \u00d7 radna brzina:<\/strong> oko 117 Hz \u2014 \u010desto se pogre\u0161no smatra PPF-om, ali to je harmonik brzine vratila.<\/li>\n<li><strong>2\u00d7 frekvencija mre\u017ee:<\/strong> 120 Hz (ili 100 Hz) \u2014 klju\u010dna elektromagnetska komponenta za ekscentricitet.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/hr\/glossary\/motor-bar-pass-frequency\/\">Frekvencija prolaska rotorske \u0161ipke<\/a>:<\/strong> broj rotorskih \u0161ipki \u00d7 radna brzina, u podru\u010dju kilohertza.<\/li>\n<\/ul>\n<p>Mali razmak izme\u0111u 2\u00d7 mre\u017ene frekvencije (120 Hz) i obli\u017enjeg <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/harmonics\/\">harmonici<\/a> reda radne brzine (4. red ovdje je oko 117 Hz) upravo je razlog za\u0161to se elektromagnetski kvarovi tako lako brkaju s mehani\u010dkima \u2014 i za\u0161to je fina struktura bo\u010dnih traka prolaska polova, a ne sama amplituda, odlu\u010duju\u0107i trag. Kada slika ostane nejasna, isklju\u010divanje napajanja je kona\u010dan test: elektromagnetska komponenta nestaje trenuta\u010dno s poljem, dok mehani\u010dka opada tek dok rotor slobodno usporava.<\/p>\n<h2>6. Metode korekcije<\/h2>\n<h3>Za mehani\u010dku ekscentri\u010dnost<\/h3>\n<ul>\n<li>Zamijenite istro\u0161ene le\u017eajeve kako biste vratili pravilno centriranje rotora<\/li>\n<li>Ispravite savijenu osovinu ili zamijenite rotor.<\/li>\n<li>Ponovno montirajte rotor ako je gre\u0161ka instalacijska gre\u0161ka.<\/li>\n<li>Provjerite poravnanje krajnjih poklopaca i pritezanje vijaka.<\/li>\n<\/ul>\n<h3>Za proizvodnu ekscentri\u010dnost<\/h3>\n<ul>\n<li>Ozbiljne slu\u010dajeve mogu zahtijevati novo bu\u0161enje rotora ili statora.<\/li>\n<li>Zamijenite motor gdje je to ekonomski opravdano.<\/li>\n<li>Prihvatite stanje ako vibracija ostaje unutar prihvatljivih granica.<\/li>\n<li>Dokumentirajte kao polaznu liniju za budu\u0107u usporedbu.<\/li>\n<\/ul>\n<h3>Za probleme sa zrakom izme\u0111u pola i rotora<\/h3>\n<ul>\n<li>Provjerite stanje le\u017eaja i zamijenite ako je istro\u0161en.<\/li>\n<li>Provjerite aksijalnu poziciju rotora&#8217;s.<\/li>\n<li>Provjerite deformaciju okvira ili probleme sa krajnjim poklopcima.<\/li>\n<li>Izmjerite stvarni razmak zraka gdje je dostupan.<\/li>\n<\/ul>\n<p>Frekvencija prolaska polova je, ukratko, niskofrekventna komponenta specifi\u010dna za motor, povezana s klizanjem, koja otvara uvid u elektromagnetsku interakciju rotor\u2013stator i ujedna\u010denost zra\u010dnog raspora. Ovladavanje njezinim izra\u010dunom, prepoznavanje njezinih potpisa bo\u010dnih traka i pra\u0107enje trendova njihove amplitude omogu\u0107uju in\u017eenjeru pouzdanu dijagnostiku elektromagnetskih kvarova \u2014 i usmjeravanje odr\u017eavanja na pravo mjesto umjesto traganja za mehani\u010dkim uzrokom kojeg nikada nije ni bilo.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/hr\/glossary\/\">\u2190 Natrag na glavni indeks<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Saznajte vi\u0161e o frekvenciji prolaza polova (PPF), frekvenciji vibracija generiranih interakcijom rotora sa statorskim polovima, dijagnostici ekscentri\u010dnosti zra\u010dnog raspora i elektromagnetskim problemima u motorima.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-197","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/197\/revisions"}],"predecessor-version":[{"id":102086,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/197\/revisions\/102086"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/media?parent=197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/categories?post=197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/tags?post=197"}],"curies":[{"name":"radni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}