{"id":63,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/broken-rotor-bars\/"},"modified":"2026-07-03T09:57:04","modified_gmt":"2026-07-03T09:57:04","slug":"broken-rotor-bars","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/tl\/glossary\/broken-rotor-bars\/","title":{"rendered":"Ano ang Mga Sirang Rotor Bar? Pagkabigo ng Squirrel Cage Motor"},"content":{"rendered":"<h1>Pag-unawa sa Sirang Rotor Bars<\/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\/tl\/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\/tl\/product\/balanset-1\/\" title=\"Portable balancer at Vibration analyzer 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 full kit portable na balancer at vibration analyzer\" 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\/tl\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/tl\/product\/balanset-1\/\" title=\"Portable balancer at Vibration analyzer Balanset-1A\">Portable na balancer &#038; vibration analyzer na 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\">&euro;<\/span>1,975.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/product\/vibration-sensor\/\" title=\"Sensor ng vibraci\u00f3n\">\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 vibration sensor close-up\" 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/tl\/product\/vibration-sensor\/\" title=\"Sensor ng vibraci\u00f3n\">Sensor ng vibraci\u00f3n<\/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\">&euro;<\/span>90.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optical 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=\"Optical 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/tl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optical Sensor (Laser Tachometer)\">Optical 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\">&euro;<\/span>124.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/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 rotor balancing kit: carrying case, multi-channel signal conditioner, handheld analyzer, magnetic base, mga vibration sensor, at mga coiled cable.\" 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\/tl\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/tl\/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\">&euro;<\/span>6,803.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/tl\/wp-json\/wp\/v2\/glossary\/63?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/tl\/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\/tl\/product\/magnet-stand\/\" title=\"Magnetic Stand 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=\"Magnet base.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/tl\/product-category\/parts\/\" 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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>sirang rotor bars<\/strong> ay mga kumpletong pagkabasag ng mga conductor bar sa squirrel-cage rotor ng isang induction motor. Ang kondisyon ay mahalagang katulad ng isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/rotor-bar-defects\/\">rotor bar defect<\/a>, ngunit binibigyang-diin ng termino ang isang buong pagkaputol kaysa sa isang bitak o isang joint na may mataas na resistansya. Kapag ang isa o higit pang bar ay naputol, ang kuryente ay hindi na makakarating sa mga ito, at ang resultang electromagnetic asymmetry ay nagpo-produce ng katanging <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/vibration\/\">vibration<\/a> at mga current signature \u2014 <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/sidebands\/\">sidebands<\/a> spaced at the <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/pole-pass-frequency\/\">pole-pass frequency<\/a> (the number of poles \u00d7 the <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/slip-frequency\/\">slip frequency<\/a>) around the <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/running-speed\/\">running speed<\/a>.<\/p>\n<p>Ang mga sirang bar ay partikular na mapanganib dahil sila ay nabibigo sa pamamagitan ng cascade. Ang isang sirang bar ay nagpapataw ng dagdag na kuryente at stress sa mga katabing bar, na nagsisimula namang mabigo nang sunud-sunod. Kung mahuli nang maaga \u2014 sa yugto ng iisang sirang bar \u2014 ang motor ay maaaring tumakbo nang ilang buwan sa ilalim ng monitoring; kung hindi mapansin, ang depekto ay maaaring mapabilis sa maraming sirang bar at isang mapanganib na pagkabigo ng rotor na nangangailangan ng kapalit.<\/p>\n<h2>1. Paano Nasisira ang mga Rotor Bar<\/h2>\n<h3>Thermal Fatigue (Pinakakaraniwan)<\/h3>\n<p>Ang paulit-ulit na pag-init at paglamig ay ang pangunahing sanhi, at ang mekanismo ay kapaki-pakinabang na sundan nang hakbang-hakbang:<\/p>\n<ul>\n<li><strong>Startup current:<\/strong> sa panahon ng pagsisimula, ang rotor ay nagdadala ng 5\u20137\u00d7 normal na kuryente sa locked-rotor na kondisyon.<\/li>\n<li><strong>Thermal expansion:<\/strong> ang mga aluminium bar ay lumalawak nang malaki, na may koefisyente na humigit-kumulang 23 \u00b5m\/m\/\u00b0C.<\/li>\n<li><strong>Constraint:<\/strong> ang iron core ay lumalawak nang mas kaunti (mga 12 \u00b5m\/m\/\u00b0C), na nagpipigil sa mga bar.<\/li>\n<li><strong>Stress:<\/strong> ang differential expansion na ito ay nagdudulot ng mataas na thermal stress sa mga bar.<\/li>\n<li><strong>Fatigue:<\/strong> repeated start cycles drive low-cycle <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/fatigue\/\">fatigue<\/a>.<\/li>\n<li><strong>Pagsisimula ng bitak:<\/strong> ang mga bitak ay karaniwang nagsisimula sa junction ng bar at end-ring, ang pinakamataas na punto ng stress.<\/li>\n<\/ul>\n<h3>Mechanical Stress<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/tl\/glossary\/centrifugal-force\/\">Centrifugal forces<\/a> at high speed.<\/li>\n<li>Electromagnetic na pwersa sa panahon ng pagpapatakbo at pag-start.<\/li>\n<li>Vibration na nagmumula sa mga panlabas na pinagkukunan.<\/li>\n<li>Ang pagkarga sa pagkakauntog sa pagsisimula o biglaang pagbabago ng karga.<\/li>\n<\/ul>\n<h3>Mga Depekto sa Pagmamanupaktura<\/h3>\n<ul>\n<li><strong>Porosity:<\/strong> mga void sa cast-aluminium na rotor.<\/li>\n<li><strong>Mahinang bonding:<\/strong> hindi sapat na bonding ng bar sa core.<\/li>\n<li><strong>Inclusions ng material:<\/strong> mga contaminant na nakulong sa casting.<\/li>\n<li><strong>Mahihina na koneksyon ng dulo ng singsing:<\/strong> mahinang koneksyon ng bar sa end-ring.<\/li>\n<\/ul>\n<h3>Mga Kondisyon ng Pagpapatakbo<\/h3>\n<ul>\n<li><strong>Madalas na pagsimulan:<\/strong> bawat pag-start ay isang thermal at mekanikal na stress na kaganapan.<\/li>\n<li><strong>Mga paaload na mataas ang inertya:<\/strong> ang mahabang panahon ng pagpabilis ay nagpahaba ng stress sa bar.<\/li>\n<li><strong>Serbisyong nakabaliktad:<\/strong> ang plugging ay lumilikha ng matinding agos.<\/li>\n<li><strong>Single-phasing:<\/strong> ang pagpapatakbo na may isang phase na nawala ay nagdadala ng labis na karga sa natitirang mga rotor bar.<\/li>\n<\/ul>\n<h2>2. Ang Katangiang Sideband Signature<\/h2>\n<h3>Bakit Lumilitaw ang mga Sideband<\/h3>\n<p>Ang natatanging diagnostic na pattern ay nastestablisa sa pamamagitan ng malinaw na chain ng sanhi at epekto:<\/p>\n<ol>\n<li>Ang isang sirang bar ay hindi makapagdadala ng agos, na lumilikha ng electrical asymmetry sa rotor.<\/li>\n<li>That asymmetry lags the rotating field by the slip frequency f<sub>s<\/sub> \u2014 the difference between synchronous and rotor speed, in Hz.<\/li>\n<li>It produces a torque pulsation at the pole-pass frequency F<sub>P<\/sub> = number of poles \u00d7 f<sub>s<\/sub> \u2014 equivalently twice the per-unit slip times the line frequency (2\u00b7s\u00b7f<sub>line<\/sub>).<\/li>\n<li>Ang torque pulsation ay nagmo-modulate ng 1\u00d7 vibration na nagmumula sa karaniwang mekanikal na unbalance.<\/li>\n<li>The result is sidebands spaced at running speed \u00b1 pole-pass-frequency intervals.<\/li>\n<\/ol>\n<h3>Padroon ng Vibrasyon<\/h3>\n<ul>\n<li><strong>Sentral na peak:<\/strong> 1\u00d7 bilis ng tumatakbong araw (f<sub>r<\/sub>).<\/li>\n<li><strong>Mas mababang sideband:<\/strong> f<sub>r<\/sub> \u2212 F<sub>P<\/sub> (where F<sub>P<\/sub> = poles \u00d7 f<sub>s<\/sub> is the pole-pass frequency).<\/li>\n<li><strong>Mas mataas na sideband:<\/strong> f<sub>r<\/sub> + F<sub>P<\/sub>.<\/li>\n<li><strong>Maraming sidebands:<\/strong> f<sub>r<\/sub> \u00b1 2F<sub>P<\/sub>, f<sub>r<\/sub> \u00b1 3F<sub>P<\/sub> habang lumalaki ang kalidad.<\/li>\n<li><strong>Symmetry:<\/strong> ang mga sideband ay nakaposisyon nang simetrikal sa paligid ng 1\u00d7 peak.<\/li>\n<\/ul>\n<h3>Worked Example<\/h3>\n<p>Isang 4-pole, 60 Hz na motor sa buong karga:<\/p>\n<ul>\n<li>Bilis ng singkronismo: 1800 RPM.<\/li>\n<li>Tunay na bilis: 1750 RPM (29.17 Hz).<\/li>\n<li>Slip: 50 RPM, so the slip frequency f<sub>s<\/sub> = 50\/60 = 0.833 Hz.<\/li>\n<li>Pole-pass frequency: F<sub>P<\/sub> = 4 poles \u00d7 0.833 Hz = 3.33 Hz.<\/li>\n<li><strong>Ang vibrasyon ay umabot sa tuktok sa:<\/strong> 25.8 Hz, 29.17 Hz and 32.5 Hz.<\/li>\n<li>A broken bar is confirmed by the symmetric sidebands at \u00b13.33 Hz.<\/li>\n<\/ul>\n<p>Dahil ang slip frequency ang buong batayan ng pattern na ito, kapaki-pakinabang na kalkulahin ito nang tumpak para sa motor na pinag-uusapan; ang <a href=\"https:\/\/vibromera.eu\/tl\/calculators\/motor-slip-calculator\/\">Kalkulador ng Pagsiklab &amp; Aktwal na RPM ng Motor<\/a> ginagawa ito nang direkta mula sa nameplate data.<\/p>\n<h2>3. Pagsusuri ng Signature ng Kasalukuyang (MCSA)<\/h2>\n<p>Ang pagsusuri ng motor current ay nagpapakita ng malapit na kaugnay na pattern sa paligid ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/electrical-frequency\/\">line frequency<\/a>:<\/p>\n<ul>\n<li><strong>Sentral na peak:<\/strong> line frequency (50 o 60 Hz).<\/li>\n<li><strong>Sidebands:<\/strong> f<sub>line<\/sub> \u00b1 2\u00b7s\u00b7f<sub>line<\/sub>, where s is the per-unit slip \u2014 the same \u00b1F<sub>P<\/sub> spacing as in vibration, because 2\u00b7s\u00b7f<sub>line<\/sub> equals the pole-pass frequency.<\/li>\n<li><strong>Example:<\/strong> the 4-pole motor above (s = 50\/1800 \u2248 2.8%) shows sidebands at 60 \u00b1 3.33 Hz \u2014 that is, at 56.7 Hz and 63.3 Hz.<\/li>\n<li><strong>Advantage:<\/strong> hindi invasive at angkop para sa patuloy na monitoring.<\/li>\n<li><strong>Sensitivity:<\/strong> madalas na natatukoy ang mga sirang bar nang mas maaga kaysa sa vibration. Ang <a href=\"https:\/\/vibromera.eu\/tl\/calculators\/motor-electrical-frequencies\/\">Motor Electrical Defect Frequency Calculator<\/a> hinuhulaan ang mga eksaktong kasalukuyang sidebands na ito.<\/li>\n<\/ul>\n<h2>4. Mga Yugto ng Pag-unlad<\/h2>\n<h3>Iisang Sirang Barra<\/h3>\n<ul>\n<li>Lumilitaw ang maliliit na sideband, mga 20\u201340% ng amplitude ng 1\u00d7 peak.<\/li>\n<li>Ligtas na pulsasyon ng torque, madalas na hindi napapansin.<\/li>\n<li>Halos normal ang pagganap ng motor.<\/li>\n<li>Ang motor ay maaaring tumakbo nang ilang buwan sa ilalim ng monitoring.<\/li>\n<li>Ang pagpapalit ay dapat na planuhin pa rin.<\/li>\n<\/ul>\n<h3>Maraming Magkakalat na Sirang Barra<\/h3>\n<ul>\n<li>Malakas na sideband, na hihigit sa 50% ng amplitude ng 1\u00d7 peak.<\/li>\n<li>Nakikitang pulsasyon ng torque.<\/li>\n<li>Dagdag na slip at temperatura.<\/li>\n<li>Nagbibilis ang pag-unlad habang nag-ooverheat ang mga kalapit na bar.<\/li>\n<li>Nagiging apurahan ang pagpapalit \u2014 isang bagay na ilang linggo na lang.<\/li>\n<\/ul>\n<h3>Malalubhang Kundisyon<\/h3>\n<ul>\n<li>Maaaring malampasan ng mga sideband ang amplitude ng 1\u00d7 peak.<\/li>\n<li>Matinding torque pulsation na umaabot sa driven equipment.<\/li>\n<li>Mataas na vibrasyon at temperatura.<\/li>\n<li>Panganib ng pagkabigo ng end-ring o kumpletong pagkasira ng rotor.<\/li>\n<li>Kailangan ang agad na pagpapalit.<\/li>\n<\/ul>\n<h2>5. Pagtuklas sa Larangan<\/h2>\n<h3>Vibration Analysis<\/h3>\n<p>The defining challenge is resolution: the sidebands sit only a few hertz from the 1\u00d7 peak (at the pole-pass frequency, typically 1\u20134 Hz), so the analyser must separate them cleanly.<\/p>\n<ul>\n<li>Gumamit ng mataas na resolusyon na <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/fft\/\">FFT<\/a> \u2014 mas mahusay kaysa sa 0.2 Hz na resolusyon \u2014 upang mapaghiwalay ang mga sideband; ang <a href=\"https:\/\/vibromera.eu\/tl\/calculators\/fft-resolution-calculator\/\">FFT Resolution Calculator<\/a> ay tumutulong sa iyo na piliin ang bilang ng linya at ang saklaw.<\/li>\n<li>Subukan ang motor sa ilalim ng karga, dahil lumalaki ang mga sideband habang dumarami ang agos ng kuryente.<\/li>\n<li>Calculate the expected slip and pole-pass frequency for the motor in advance.<\/li>\n<li>Search the <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/spectrum\/\">spectrum<\/a> for symmetric sidebands at \u00b1F<sub>P<\/sub> sa paligid ng 1\u00d7 peak.<\/li>\n<li>Subaybayan ang amplitude ng sideband sa paglipas ng panahon.<\/li>\n<\/ul>\n<p>Ang gawaing ito ay lubos na makakamit ng isang portable na instrumento. Ang isang two-channel analyzer tulad ng <a href=\"https:\/\/vibromera.eu\/tl\/product\/balanset-1\/\">Balanset-1A<\/a> captures the vibration spectrum at the motor bearing while its optical laser tachometer reads true shaft speed, letting you fix the precise 1\u00d7 frequency, compute the slip, and look for the pole-pass-spaced sidebands that confirm broken bars \u2014 all with the motor running under its normal load. Because the same instrument also measures 1\u00d7 amplitude and phase, it cleanly separates a genuine rotor-bar signature from a simple <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/running-speed\/\">running-speed<\/a> unbalance na mangangailangan ng balancing sa halip na pagpapalit ng rotor.<\/p>\n<h3>MCSA Testing<\/h3>\n<ul>\n<li>Ikabit ang mga current probe sa mga lead ng motor.<\/li>\n<li>Kumuha ng current waveform at kalkulahin ang FFT nito.<\/li>\n<li>Maghanap ng mga sideband sa f<sub>line<\/sub> \u00b1 2\u00b7s\u00b7f<sub>line<\/sub> (that is, f<sub>line<\/sub> \u00b1 F<sub>P<\/sub>).<\/li>\n<li>Ihambing laban sa baseline ng malusog na motor.<\/li>\n<li>Maaari nitong matukoy ang problema bago maging malinaw ang mga sintomas ng vibration.<\/li>\n<\/ul>\n<h2>6. Mga Aksyon sa Pagwawasto<\/h2>\n<h3>Mabilis na Tugon<\/h3>\n<ul>\n<li>Palakihin ang dalas ng pagmamanman \u2014 buwanang, pagkatapos linggu-linggo, pagkatapos araw-araw.<\/li>\n<li>Subaybayan ang rate ng paglago ng amplitude ng sideband sa pamamagitan ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/trend-analysis\/\">trend analysis<\/a>.<\/li>\n<li>Umorder ng kapalit na motor o magplano ng pagpapalit ng rotor.<\/li>\n<li>Bawasan ang duty cycle kung posible, na pinipigilan ang mga pag-start.<\/li>\n<li>Idokumento ang pag-unlad para sa pagsusuri ng pagkabigo.<\/li>\n<\/ul>\n<h3>Repair Options<\/h3>\n<ul>\n<li><strong>Pagpapalit ng rotor:<\/strong> ang pinaka-maaasahang pagpipilian para sa malalaking motor (higit sa 100 HP).<\/li>\n<li><strong>Muling pagsasaad ng rotor:<\/strong> ang mga espesyalisadong tindahan ay maaaring muling mag-cast ng mga aluminium rotor.<\/li>\n<li><strong>Pagpapalit ng motor:<\/strong> kadalasan ang pinaka-ekonomikal na paraan para sa maliliit na motor (wala pang 50 HP).<\/li>\n<li><strong>Pagsusuri ng pangunahing sanhi:<\/strong> alamin kung bakit nasira ang mga bar upang maiwasan ang pag-ulit.<\/li>\n<\/ul>\n<h3>Prevention<\/h3>\n<ul>\n<li>Gumamit ng mga soft starter o VFD upang bawasan ang starting current at thermal stress.<\/li>\n<li>Limitahan ang dalas ng pag-start para sa mga kargong may mataas na inertia.<\/li>\n<li>Tukuyin ang mga motor na angkop sa aktwal na duty cycle \u2014 mga disenyo para sa madalas na pag-start para sa serbisyong may mataas na cycle.<\/li>\n<li>Tiyakin ang sapat na bentilasyon at paglamig ng motor.<\/li>\n<li>Protektahan laban sa mga kundisyon ng single-phasing.<\/li>\n<\/ul>\n<p>Ang mga nasirang rotor bar ay bumubuo lamang ng humigit-kumulang 10\u201315% ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/motor-defects\/\">motor failures<\/a>, yet they leave an unmistakable pole-pass sideband signature that supports reliable early detection by vibration or current analysis. Understanding the thermal-fatigue mechanism, recognising the characteristic sideband pattern, and embedding the checks in a <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/condition-monitoring\/\">condition-monitoring<\/a> programa ay nagbibigay-daan sa isang motor na mapalitan sa isang naplanong batayan \u2014 bago ang isang nasirang bar ay mag-cascade patungo sa maraming pagkabigo ng bar at matagal na hindi planadong downtime.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/tl\/glossary\/\">\u2190 Bumalik sa Pangunahing Index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Matuto tungkol sa mga sirang rotor bar sa mga induction motor \u2014 mga fracture sa conductor bar na lumilikha ng slip frequency sideband, pulsasyon ng torque, at progresibong pagkabigo kung hindi matukoy nang maaga.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-63","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/63","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/63\/revisions"}],"predecessor-version":[{"id":102161,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/63\/revisions\/102161"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/media?parent=63"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/categories?post=63"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/tags?post=63"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}