{"id":105206,"date":"2015-07-17T03:00:00","date_gmt":"2015-07-17T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=178f8f1530fd28393e4242bcab70a7e7"},"modified":"2015-07-17T03:00:00","modified_gmt":"2015-07-17T00:00:00","slug":"calculation-of-the-ac-to-dc-resistance-ratio-of-conductive-nonmagnetic-straight-conductors-byapplying-fem-simulations","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=105206","title":{"rendered":"Calculation of the ac to dc resistance ratio of conductive nonmagnetic straight conductors by\r\napplying FEM simulations"},"content":{"rendered":"<p>This paper analyzes the skin and proximity effects in different conductive nonmagnetic straight<br \/>\nconductor configurations subjected to applied alternating currents and voltages. These effects have<br \/>\nimportant consequences, including a rise of the ac resistance, which in turn increases power loss,<br \/>\nthus limiting the rating for the conductor. Alternating current (ac) resistance is important in<br \/>\npower conductors and bus bars for line frequency applications, as well as in smaller conductors for<br \/>\nhigh frequency applications. Despite the importance of this topic, it is not usually analyzed in<br \/>\ndetail in undergraduate and even in graduate studies. To address this, this paper compares the<br \/>\nresults provided by available exact formulas for simple geometries with those obtained by means of<br \/>\ntwo-dimensional finite element method (FEM) simulations and experimental results. The paper also<br \/>\nshows that FEM results are very accurate and more general than those provided by the formulas, since<br \/>\nFEM models can&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This paper analyzes the skin and proximity effects in different conductive nonmagnetic straight<br \/>\nconductor configurations subjected to applied alternating currents and voltages. These effects have<br \/>\nimportant consequences, including a rise of the ac res&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-105206","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/105206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=105206"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/105206\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=105206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=105206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=105206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}