{"id":2668,"date":"2025-09-18T11:10:33","date_gmt":"2025-09-18T09:10:33","guid":{"rendered":"https:\/\/sti2tech.com\/?page_id=2668"},"modified":"2025-09-18T11:10:45","modified_gmt":"2025-09-18T09:10:45","slug":"sti2d-tle-ra-td-n2-2","status":"publish","type":"page","link":"https:\/\/sti2tech.com\/?page_id=2668","title":{"rendered":"STI2D &#8211; Tle RA &#8211; TD n\u00b02"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2668\" class=\"elementor elementor-2668\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2ecf7a8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2ecf7a8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-906a55f\" data-id=\"906a55f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8a397b3 elementor-widget elementor-widget-heading\" data-id=\"8a397b3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TD n \u00b02 : Calcul de puissances d'une installation monophas\u00e9e<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9719057 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9719057\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5a87c00\" data-id=\"5a87c00\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f15552c elementor-widget elementor-widget-text-editor\" data-id=\"f15552c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Objectifs :<\/h3><ul><li>Manipuler et calculer les formules permettant de d\u00e9terminer les diff\u00e9rentes puissances dans un syst\u00e8me monophas\u00e9.<\/li><li>Consigner ses calculs et ses r\u00e9sultats sur un compte rendu<\/li><li>R\u00e9diger ses hypoth\u00e8ses avec rigueur et propret\u00e9<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3cc2b26 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3cc2b26\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-db6c777\" data-id=\"db6c777\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-988b14d elementor-widget elementor-widget-text-editor\" data-id=\"988b14d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>1\u00e8re Partie &#8211; Etude d&rsquo;une machine \u00e0 laver<\/h4><ul><li class=\"p1\">Le moteur monophas\u00e9 d&rsquo;une machine \u00e0 laver consomme 3.6 A sous une tension de 240 V ; 50 Hz. Son <span style=\"font-family: var(--global-body-font-family);\">facteur de puissance est cos \u03c6 = 0,75.<\/span><\/li><\/ul><ol><li><span style=\"font-family: var(--global-body-font-family);\">Calculer les puissances apparente, active et r\u00e9active absorb\u00e9es par le moteur.<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Calculer l&rsquo;\u00e9nergie \u00e9lectrique consomm\u00e9e pour un fonctionnement ininterrompu de 8 h.<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Le prix du kWh \u00e9tant \u00e0 0.15 \u20ac, calculer le co\u00fbt de ce fonctionnement.<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-56233a5\" data-id=\"56233a5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-aea0cdd elementor-widget elementor-widget-image\" data-id=\"aea0cdd\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"883\" height=\"554\" src=\"https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/maquina-lavar-professional.png\" class=\"attachment-large size-large wp-image-2670\" alt=\"\" srcset=\"https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/maquina-lavar-professional.png 883w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/maquina-lavar-professional-300x188.png 300w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/maquina-lavar-professional-768x482.png 768w\" sizes=\"(max-width: 883px) 100vw, 883px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9bb3e84 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9bb3e84\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-577fb17\" data-id=\"577fb17\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-987db39 elementor-widget elementor-widget-image\" data-id=\"987db39\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"577\" src=\"https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/th_78026f265921b24e8e111d6679067904_43979-Mils-Atelier-industriel-15-1024x577.jpg\" class=\"attachment-large size-large wp-image-2671\" alt=\"\" srcset=\"https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/th_78026f265921b24e8e111d6679067904_43979-Mils-Atelier-industriel-15-1024x577.jpg 1024w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/th_78026f265921b24e8e111d6679067904_43979-Mils-Atelier-industriel-15-300x169.jpg 300w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/th_78026f265921b24e8e111d6679067904_43979-Mils-Atelier-industriel-15-768x433.jpg 768w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/th_78026f265921b24e8e111d6679067904_43979-Mils-Atelier-industriel-15.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-edb11c0\" data-id=\"edb11c0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ecb69dd elementor-widget elementor-widget-text-editor\" data-id=\"ecb69dd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>2\u00e8me Partie &#8211; Etude d&rsquo;une installation \u00e9lectrique d&rsquo;un atelier<\/h4><ul><li>Une installation monophas\u00e9e, 230 V AC, 50 Hz, comporte :<\/li><\/ul><ul><li style=\"list-style-type: none;\"><ul><li class=\"p1\">100 lampes \u00e0 incandescence de 45 W <span style=\"font-family: var(--global-body-font-family);\">chacune<\/span><\/li><li class=\"p1\"><span style=\"font-family: var(--global-body-font-family);\">un moteur monophas\u00e9 de puissance utile de 3.5 kW, de rendement \u03b7 = 0,75 et de facteur <\/span><span style=\"font-family: var(--global-body-font-family);\">de puissance cos \u03c6 = 0,72<\/span><\/li><\/ul><\/li><\/ul><ol><li><span style=\"font-family: var(--global-body-font-family);\">Repr\u00e9senter le sch\u00e9ma de l&rsquo;installation et noter les grandeurs ci-dessus<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Calculer l&rsquo;intensit\u00e9 I1 du courant dans les lampes<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Calculer la puissance active absorb\u00e9e par le moteur<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Calculer l&rsquo;intensit\u00e9 I2 du courant dans le moteur<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Calculer la puissance active totale Pt de l&rsquo;installation, la puissance apparente totale St de <\/span><span style=\"font-family: var(--global-body-font-family);\">l&rsquo;installation.<\/span><\/li><li><span style=\"font-family: var(--global-body-font-family);\">Calculer l&rsquo;intensit\u00e9 totale It en ligne de l&rsquo;installation, et le facteur de puissance de l&rsquo;installation<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1ca3378 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1ca3378\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c0066d2\" data-id=\"c0066d2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7dff465 elementor-widget elementor-widget-text-editor\" data-id=\"7dff465\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>3\u00e8me Partie &#8211; Etude d&rsquo;une installation lumineuse<\/h4><p class=\"p1\">Une installation d&rsquo;\u00e9clairage comprend : 120 tubes fluorescents de 60 W chacun, cos \u03c61 = 0,48 (noncompens\u00e9).<\/p><ol><li class=\"p1\">Calculer la puissance totale de l&rsquo;installation, l&rsquo;intensit\u00e9 en ligne sachant que l&rsquo;installation est aliment\u00e9e <strong>sous une tension efficace de 230 V- 50 Hz.<\/strong><\/li><li class=\"p1\"><span style=\"font-family: var(--global-body-font-family);\">On veut passer d&rsquo;un cos \u03c61 de 0,48 \u00e0 un cos \u03c62 de 0,95. Calculer la valeur de la puissance r\u00e9active du condensateur \u00e0 installer. <\/span><strong style=\"font-family: var(--global-body-font-family);\">Calculer la valeur du condensateur<\/strong><\/li><li class=\"p1\"><strong style=\"font-family: var(--global-body-font-family);\">Calculer la nouvelle valeur du courant en ligne.<\/strong><span style=\"font-family: var(--global-body-font-family);\"> Indiquer, d&rsquo;apr\u00e8s les r\u00e9sultats des questions pr\u00e9c\u00e9dentes l&rsquo;avantage d&rsquo;avoir un cos \u03c6 le plus proche de 1.<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-28c50aa\" data-id=\"28c50aa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ac871be elementor-widget elementor-widget-image\" data-id=\"ac871be\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"508\" src=\"https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/Capture-decran-2025-09-18-a-11.10.20-1024x508.png\" class=\"attachment-large size-large wp-image-2672\" alt=\"\" srcset=\"https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/Capture-decran-2025-09-18-a-11.10.20-1024x508.png 1024w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/Capture-decran-2025-09-18-a-11.10.20-300x149.png 300w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/Capture-decran-2025-09-18-a-11.10.20-768x381.png 768w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/Capture-decran-2025-09-18-a-11.10.20-1536x762.png 1536w, https:\/\/sti2tech.com\/wp-content\/uploads\/2025\/09\/Capture-decran-2025-09-18-a-11.10.20.png 1738w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>TD n \u00b02 : Calcul de puissances d&rsquo;une installation monophas\u00e9e Objectifs : Manipuler et calculer les formules permettant de d\u00e9terminer les diff\u00e9rentes puissances dans un syst\u00e8me monophas\u00e9. Consigner ses calculs et ses r\u00e9sultats sur un compte rendu R\u00e9diger ses hypoth\u00e8ses avec rigueur et propret\u00e9 1\u00e8re Partie &#8211; Etude d&rsquo;une machine \u00e0 laver Le moteur monophas\u00e9&#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"hide","_kad_post_layout":"fullwidth","_kad_post_sidebar_id":"","_kad_post_content_style":"unboxed","_kad_post_vertical_padding":"hide","_kad_post_feature":"hide","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"folder":[17],"class_list":["post-2668","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sti2tech.com\/index.php?rest_route=\/wp\/v2\/pages\/2668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sti2tech.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sti2tech.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sti2tech.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/sti2tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2668"}],"version-history":[{"count":4,"href":"https:\/\/sti2tech.com\/index.php?rest_route=\/wp\/v2\/pages\/2668\/revisions"}],"predecessor-version":[{"id":2675,"href":"https:\/\/sti2tech.com\/index.php?rest_route=\/wp\/v2\/pages\/2668\/revisions\/2675"}],"wp:attachment":[{"href":"https:\/\/sti2tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2668"}],"wp:term":[{"taxonomy":"folder","embeddable":true,"href":"https:\/\/sti2tech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ffolder&post=2668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}