{"id":11150,"date":"2021-09-29T10:00:37","date_gmt":"2021-09-29T18:00:37","guid":{"rendered":"https:\/\/www.linquip.com\/blog\/?p=11150"},"modified":"2021-12-01T10:54:49","modified_gmt":"2021-12-01T18:54:49","slug":"the-difference-between-stator-and-rotor","status":"publish","type":"post","link":"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/","title":{"rendered":"The Difference Between Stator and Rotor: The Ultimate Guide!"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#The_Main_Difference_Between_Stator_and_Rotor\" >The Main Difference Between Stator and Rotor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#What_is_a_Stator\" >What is a Stator?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#What_is_a_Rotor\" >What is a Rotor?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Movement\" >Movement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Parts\" >Parts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Insulation\" >Insulation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Supply\" >Supply<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Definition\" >Definition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Friction_Loss\" >Friction Loss<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Winding_Arrangement\" >Winding Arrangement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Size\" >Size<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.linquip.com\/blog\/the-difference-between-stator-and-rotor\/#Cooling\" >Cooling<\/a><\/li><\/ul><\/nav><\/div>\n<p>Today in Linquip, we want to talk about the difference between stator and rotor! These two small parts are crucial for almost all electrical motors. That is why you should know how they differ and what parameters are the ones that enable them to function differently from each other. Let\u2019s dive into the details.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Main_Difference_Between_Stator_and_Rotor\"><\/span>The Main Difference Between Stator and Rotor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are multiple factors that can be taken into consideration when comparing stators and rotors such as movement, parts, insulation, supply, winding arrangement, friction loss, etc. Each one of these parameters can affect the difference between stator and rotor in a specific way. We will go through them one by one to see how they differ in these two parts. But first, let\u2019s read a bit about stators and rotors and learn what they are, to fully understand the difference between stator and rotor.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Stator\"><\/span>What is a Stator?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The major difference between stator and rotor is in that the stator is considered as the motors\u2019 static part. The stator contains a frame, winding, and static core. The housing or the frame of the stator is made from aluminum, although this is only for motors up to 22 kW. This material changes for the motors that have higher outputs. In these cases, the housing should be made from cast iron. The housing keeps all the parts inside. The stator contains thin and stacked laminations. These laminations are wound with insulated wire and the stator\u2019s core contains many (almost hundreds) of these laminations.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-11155\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-1.jpg\" alt=\"difference between stator and rotor\" width=\"600\" height=\"600\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-1.jpg 600w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-1-300x300.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-1-150x150.jpg 150w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-1-420x420.jpg 420w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Stators generate a rotating magnetic field and its core that is made from high-grade silicon steel stamping is responsible for protecting and supporting the three-phase winding. When AC or alternating current is applied, the polarity of the stator\u2019s winding changes. This results in the rotation of the stator\u2019s magnetic field.<\/p>\n<p>The availability of the stators is good since they have different designs, enabling them to handle different frequencies, outputs, and voltages. You can easily choose the one that suits your needs and is perfect for your desired application.<\/p>\n<div class=\"su-box su-box-style-default\" id=\"\" style=\"border-color:#00021e;border-radius:3px;max-width:none\"><div class=\"su-box-title\" style=\"background-color:#263551;color:#89cabd;border-top-left-radius:1px;border-top-right-radius:1px\">Read More on Linquip<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:1px;border-bottom-right-radius:1px\"><a title=\"centrifuge rotor types\" href=\"https:\/\/www.linquip.com\/blog\/centrifuge-rotor-types-uses-and-the-history\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">centrifuge rotor types<\/a>: an insight to the types, uses and the history<\/p>\n<p><a title=\"Types of rotors\" href=\"https:\/\/www.linquip.com\/blog\/types-of-rotors-figure-out-the-types\/\" target=\"_blank\" rel=\"noopener\" data-schema-attribute=\"\">Types of rotors<\/a> in Centrifuge &amp; Helicopter ( Review in 2020)<\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Rotor\"><\/span>What is a Rotor?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>So, to know the difference between stator and rotor, we should also learn about rotors. Rotors are the rotating section of a motor. It contains a core and winding. A DC supply triggers the rotor\u2019s winding. The rotor is the heart of the stator. Stator uses the three-phase supply to generate the rotating magnetic field. Rotors have different types including the squirrel cage and the phase wound.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-11156\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/rotor.jpg\" alt=\"difference between stator and rotor\" width=\"600\" height=\"455\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/rotor.jpg 600w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/rotor-300x228.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/rotor-554x420.jpg 554w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/rotor-80x60.jpg 80w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/rotor-160x120.jpg 160w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>The rotor is made of lamination stacks, just like the stator. But unlike the stator, the rotor\u2019s lamination stack is filled with silumin or aluminum bars. On the other hand, the stator is filled with copper wire. The bars in the rotor act as the required conductors.<\/p>\n<p>When the rotor is not moving, the electromagnetic force incudes in them due to the electromagnetic induction phenomena. When the moving magnetic field of the stator cuts across the conductor bars of the rotor, a current will be produced. The produced current circulates through the stator bars. As a result, magnetic fields are created around each bar. With the changes in the magnetic field around the stator bars, the field in the rotor changes as well. This process and interaction, make the rotor move.<\/p>\n<p>Now, let\u2019s go through the parameters that separate rotors and stators to see why they are different.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Movement\"><\/span>Movement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>The most obvious difference between stator and rotor is in their movement. While the rotor rotates inside the motor and is considered as the rotating part, the stator is motionless and does not move.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Parts\"><\/span>Parts<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>Another difference between these two is in their parts. The stator has a frame, supporting the core and its winding. The stator has a three-phase winding which is located inside the frame. The rotating magnetic field of the stator is carried by the core. The important thing about the rotor here is that it is located inside the stator\u2019s core! The rotor contains winding and core as well.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Insulation\"><\/span>Insulation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>Another parameter that should be considered in this comparison to find the difference between stator and rotor is the insulation. The stator has heavy insulation. This is while the rotor has low insulation.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Supply\"><\/span>Supply<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>Rotor has a DC supply. Stator, on the other hand, has a three-phase supply. A three-phase supply can accommodate a higher load.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Definition\"><\/span>Definition<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>Yes, they differ in their definition as well! The definition of these two lies in their movement style. While the rotor is the rotating part of the motor, the stator is considered to be the stationary part of the machine.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Friction_Loss\"><\/span>Friction Loss<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>Another difference between stator and rotor is in their friction loss parameter. The friction loss depends on the structure of the part. Stator\u2019s friction loss is high. That is while the rotor has a low friction loss.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-11157\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-2.jpg\" alt=\"difference between stator and rotor\" width=\"599\" height=\"354\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-2.jpg 599w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/08\/Stator-2-300x177.jpg 300w\" sizes=\"(max-width: 599px) 100vw, 599px\" \/><\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Winding_Arrangement\"><\/span>Winding Arrangement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>The winding arrangement between a rotor and a stator differs in that a stator\u2019s winding arrangement is complex. On the other hand, rotors have an easy arrangement.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Size\"><\/span>Size<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>The stator winding size is large since it carries a heavy current. On the other hand, the size of the field winding is not as large as the stator.<\/p>\n<ol>\n<li>\n<h2><span class=\"ez-toc-section\" id=\"Cooling\"><\/span>Cooling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p>Another difference between stator and rotor is in their cooling system. The stator\u2019s cooling system is considered to be better than the rotor because the stator is stationary, while the rotor moves.<\/p>\n<p>&nbsp;<\/p>\n<p>Now that you have reached the end of this article, you know what rotors and stators are and you are also able to tell the difference between stator and rotor. What is your opinion about these two parts? Comment below and share your thoughts with us. Have questions about this industry and can\u2019t find the answer? Then <a href=\"https:\/\/www.linquip.com\/sign-up?client_redirect=\/\" target=\"_blank\" rel=\"noopener\">signup on Linquip<\/a> and our experts will quickly answer all your questions. Plus, you can enjoy reading many related articles on our website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today in Linquip, we want to talk about the difference between stator and rotor! These two small parts are crucial for almost all electrical motors. That is why you should know how they differ and what parameters are the ones that enable them to function differently from each other. Let\u2019s dive into the details. The &#8230;<\/p>\n","protected":false},"author":4,"featured_media":11153,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-11150","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rotor"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/11150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/comments?post=11150"}],"version-history":[{"count":0,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/11150\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media\/11153"}],"wp:attachment":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media?parent=11150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/categories?post=11150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/tags?post=11150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}