{"id":9727,"date":"2025-02-04T17:03:27","date_gmt":"2025-02-04T16:03:27","guid":{"rendered":"https:\/\/lettel.com\/?post_type=ressources&#038;p=9727"},"modified":"2026-06-09T16:10:39","modified_gmt":"2026-06-09T14:10:39","slug":"tore-rogowski","status":"publish","type":"ressources","link":"https:\/\/lettel.com\/fr\/ressources\/tore-rogowski\/","title":{"rendered":"Tout savoir sur le capteur de courant type Rogowski"},"content":{"rendered":"\r\n\r\n<section class=\"blc-heroSingle\">\r\n\r\n\t<div class=\"container\">\r\n\t\t<div class=\"row gy-5\">\r\n\r\n\t\t\t<div class=\"col-xl-5 col-lg-6\">\r\n\t\t\t\t<div class=\"blc-heroSingle_txt\">\r\n\t\t\t\t\t<div class=\"blc-heroSingle_dates\">\r\n\t\t\t\t\t\t<span class=\"blc-heroSingle_supttl\">Publi\u00e9 le 4 f\u00e9vrier 2025&nbsp;&#8211;<\/span>\r\n\t\t\t\t\t\t<span class=\"blc-heroSingle_supttl\">&nbsp;Modifi\u00e9 le 9 juin 2026<\/span>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<h1 class='blc-heroSingle_ttl' class='blc-heroSingle_ttl' id=\"tout-savoir-sur-le-capteur-de-courant-type-rogowski\">Tout savoir sur le capteur de courant type Rogowski<\/h1>\r\n\t\t\t\t\t<p class=\"blc-heroSingle_data\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"blc-heroSingle_tags\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t\t\t\t\t<\/p>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t<div class=\"col-xl-6 col-lg-5 offset-lg-1\">\r\n\t\t\t\t<figure class=\"heroSingle_med media-wrp__16x9 full\">\r\n\t\t\t\t\t<img decoding=\"async\" alt=\"transformateur de courant souple rogowski\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-ambiance.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-ambiance-300x199.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-ambiance-768x508.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-ambiance-600x397.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-ambiance.jpg 1000w\" sizes=\"(min-width: 992px) 893px, (min-width: 1200px) 1080px, (min-width: 1400px) 1260px, (min-width: 1600px) 1440px, 100vw\">\t\t\t\t\t\t\t\t\t<\/figure>\r\n\t\t\t<\/div>\r\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-content-post spc-s5 bg-cw \"> \r\n    <div class=\"container\">\r\n\r\n        <div class=\"row\">\r\n            <div class=\"col-lg-8\">\r\n                <div class=\"editor\">\r\n                    <link\n  rel=\"stylesheet\"\n  href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.5.1\/css\/all.min.css\"\n  integrity=\"sha512-DTOQO9RWCH3ppGqcWaEA1BIZOC6xxalwEsw9c2QQeAIftl+Vegovlnee1c9QX4TctnWMn13TZye+giMm8e2LwA==\"\n  crossorigin=\"anonymous\"\n  referrerpolicy=\"no-referrer\"\n\/>\n<div style=\"background: rgba(30, 180, 230, 0.05); padding: 40px 40px 20px 40px; border-radius: 5px;\"><strong style=\"color: #1b1945; font-size: 20px;\">EN R\u00c9SUM\u00c9<\/strong><\/p>\n<ul>\n<li>Le capteur de courant \u00e0 boucle de Rogowski mesure les fortes intensit\u00e9s de courant alternatif via une bobine flexible entourant le conducteur.<\/li>\n<li>Il fonctionne par induction \u00e9lectromagn\u00e9tique et d\u00e9livre une tension proportionnelle \u00e0 la variation du courant, ensuite int\u00e9gr\u00e9e pour obtenir la mesure.<\/li>\n<li>Plus l\u00e9ger et flexible qu\u2019un transformateur de courant classique, il ne poss\u00e8de pas de noyau ferromagn\u00e9tique et ne pr\u00e9sente pas de saturation.<\/li>\n<li>Il est principalement utilis\u00e9 pour la mesure de forts courants (industrie, \u00e9nergie, transport, ENR) et permet une installation simple sans coupure du circuit.<\/li>\n<li>Le signal de sortie en mV n\u00e9cessite souvent un convertisseur ou une entr\u00e9e compatible pour exploitation dans les syst\u00e8mes de mesure.<\/li>\n<\/ul>\n<\/div>\n<p><span style=\"font-weight: 500; color: #1b1945;\">Simples \u00e0 installer, adaptables et performants, les capteurs de courant avec boucle de Rogowski pr\u00e9sentent de nombreux atouts en termes d\u2019int\u00e9gration, de pr\u00e9cision et de flexibilit\u00e9.<\/span><\/p>\n<p><span data-contrast=\"auto\">Zoom sur les caract\u00e9ristiques, le fonctionnement, les applications et les avantages de ce dispositif pour <a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/\">\u00e9quiper vos armoires \u00e9lectriques<\/a>.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h2 aria-level=\"2\" aria-level=\"2\" id=\"quest-ce-quun-capteur-de-courant-avec-boucle-de-rogowski\">Qu&rsquo;est-ce qu\u2019un capteur de courant avec boucle de Rogowski ?&nbsp;&nbsp;&nbsp;<\/h2>\n<p><span data-ccp-props=\"{}\">&nbsp;<\/span><a href=\"https:\/\/lettel.com\/fr\/compteurs-electriques-boucles-rogowski\/\"><span data-contrast=\"none\">Les capteurs de courant avec boucle de Rogowski<\/span><\/a><span data-contrast=\"auto\">, aussi connue sous le nom de bobine Rogowski ou Tore Rogowski, sont des dispositifs \u00e9lectromagn\u00e9tiques utilis\u00e9s pour la mesure des courants \u00e9lectriques, en particulier ceux de tr\u00e8s forte intensit\u00e9.&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-ccp-props=\"{}\">&nbsp;<\/span><span data-contrast=\"auto\">Invent\u00e9e par l\u2019ing\u00e9nieur et physicien allemand \u00e9ponyme Walter Rogowski au d\u00e9but du XX\u00e8me si\u00e8cle, la boucle de Rogowski se pr\u00e9sente sous la forme d\u2019une bobine de fil enroul\u00e9e de mani\u00e8re h\u00e9lico\u00efdale sur un support flexible ou rigide. Elle vient entourer le conducteur dont on souhaite mesurer l\u2019intensit\u00e9 du courant \u00e9lectrique.&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h2 id=\"comment-fonctionne-un-capteur-de-courant-avec-boucle-de-rogowski\"><span data-contrast=\"auto\">Comment fonctionne un capteur de courant avec boucle de Rogowski ?<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-9730 size-full\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Dessin-Rogowski.jpg\" alt=\"Sch\u00e9ma de fonctionnement des boucles rogowski\" width=\"1517\" height=\"972\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Dessin-Rogowski.jpg 1200w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Dessin-Rogowski-300x192.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Dessin-Rogowski-1024x655.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Dessin-Rogowski-768x492.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Dessin-Rogowski-600x384.jpg 600w\" sizes=\"(max-width: 1517px) 100vw, 1517px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span data-contrast=\"auto\">Le fonctionnement d\u2019un capteur avec boucle de Rogowski est le suivant : quand le courant circule dans le conducteur autour duquel la bobine est plac\u00e9e, cela g\u00e9n\u00e8re un champ magn\u00e9tique variable, <strong>selon la loi d\u2019Amp\u00e8re\u202f<\/strong>:&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<div>&nbsp;<\/div>\n<div class=\"math\" style=\"text-align: center;\"><strong><em>\u03a6<\/em>(t) = (<em>u<\/em>\u00d7<em>S<\/em>\u00d7<em>I<\/em>(t))\/(2\u03c0\u00d7r)<\/strong><\/div>\n<ul>\n<li><span data-mathml=\"&lt;math xmlns=&quot;http:\/\/www.w3.org\/1998\/Math\/MathML&quot; display=&quot;block&quot;&gt;&lt;mi&gt;&amp;#x1D731;&lt;\/mi&gt;&lt;mo fence=&quot;false&quot;&gt;(&lt;\/mo&gt;&lt;mi&gt;t&lt;\/mi&gt;&lt;mo fence=&quot;false&quot;&gt;)&lt;\/mo&gt;&lt;mo&gt;&amp;#xA0;&lt;\/mo&gt;&lt;mo&gt;:&lt;\/mo&gt;&lt;\/math&gt;\">\ud835\udf31<strong>(t)<\/strong> : <\/span><span style=\"font-size: 15px;\">le<\/span><span style=\"font-size: 15px;\"> flux\u202fmagn\u00e9tique cr\u00e9\u00e9 par le courant <\/span>I(t)<\/li>\n<li><strong><em>u<\/em><\/strong> <span data-contrast=\"auto\">: la perm\u00e9abilit\u00e9 du tore<\/span><span data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<li><em><strong>S <\/strong><\/em><span style=\"font-size: 15px;\" data-contrast=\"auto\">: la section du tore<\/span><span style=\"font-size: 15px;\" data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<li><span data-contrast=\"auto\"><strong>r<\/strong>\u202f: le rayon du tore<\/span><\/li>\n<li><strong><em>I<\/em>(t)<\/strong><span style=\"font-size: 15px;\" data-contrast=\"auto\">\u202f: le courant circule dans le conducteur<\/span><span style=\"font-size: 15px;\" data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">Celui-ci produit une <strong>tension dans la boucle, proportionnelle<\/strong> \u00e0 la variation du courant mesur\u00e9. <strong>Selon la loi d\u2019induction \u00e9lectromagn\u00e9tique de Faraday<\/strong>, nous avons\u202f:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p style=\"text-align: center;\"><span data-ccp-props=\"{}\">&nbsp;<\/span><strong>V(t)=\u2212N\u00d7(d\u03a6(t))\/dt<\/strong><\/p>\n<ul>\n<li><strong><span style=\"font-size: 15px;\" data-mathml=\"&lt;math xmlns=&quot;http:\/\/www.w3.org\/1998\/Math\/MathML&quot; display=&quot;block&quot;&gt;&lt;mi&gt;V&lt;\/mi&gt;&lt;mfenced&gt;&lt;mi&gt;t&lt;\/mi&gt;&lt;\/mfenced&gt;&lt;\/math&gt;\">V(t)<\/span><\/strong><span style=\"font-size: 15px;\" data-contrast=\"auto\">\u202f: la tension dans le boucle<\/span><span style=\"font-size: 15px;\" data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<li><strong>N <\/strong><span style=\"font-size: 15px;\" data-contrast=\"auto\">: le nombre de spires du bobinage<\/span><span style=\"font-size: 15px;\" data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<\/ul>\n<p><span data-ccp-props=\"{}\">&nbsp;<\/span><span data-contrast=\"auto\">Donc,<\/span><span data-ccp-props=\"{}\"> &nbsp;<\/span><strong>V(t)=\u2212<em>N<\/em>\u00d7(<em>u<\/em>\u00d7<em>S<\/em>)\/(2\u03c0\u00d7r)\u00d7dI(t)\/dt<\/strong><\/p>\n<p><span data-contrast=\"auto\">Comme <\/span><i><span data-contrast=\"auto\">N<\/span><\/i><span data-contrast=\"auto\">, <\/span><i><span data-contrast=\"auto\">u<\/span><\/i><span data-contrast=\"auto\">, <\/span><i><span data-contrast=\"auto\">S<\/span><\/i><span data-contrast=\"auto\"> et <\/span><i><span data-contrast=\"auto\">r<\/span><\/i><span data-contrast=\"auto\"> sont des param\u00e8tres pr\u00e9d\u00e9finis par le mat\u00e9riel et la conception de la boucle,&nbsp;<\/span><span data-mathml=\"&lt;math xmlns=&quot;http:\/\/www.w3.org\/1998\/Math\/MathML&quot; display=&quot;block&quot;&gt;&lt;mi&gt;N&lt;\/mi&gt;&lt;mo&gt;&amp;#xD7;&lt;\/mo&gt;&lt;mfrac&gt;&lt;mrow&gt;&lt;mi&gt;u&lt;\/mi&gt;&lt;mo&gt;&amp;#xD7;&lt;\/mo&gt;&lt;mi&gt;S&lt;\/mi&gt;&lt;\/mrow&gt;&lt;mrow&gt;&lt;mn&gt;2&lt;\/mn&gt;&lt;mi&gt;&amp;#x1D70B;&lt;\/mi&gt;&lt;mo&gt;&amp;#xD7;&lt;\/mo&gt;&lt;mi&gt;r&lt;\/mi&gt;&lt;\/mrow&gt;&lt;\/mfrac&gt;&lt;\/math&gt;\">N\u00d7(<em>u<\/em>\u00d7<em>S<\/em>)\/(2\u03c0\u00d7r) <\/span><span data-contrast=\"auto\">est donc un constant pour chaque\u202fmod\u00e8le. Par cons\u00e9quent, la tension varie en fonction du courant. Cette tension est ensuite convertie par l\u2019int\u00e9grateur \u00e9lectronique en un signal de sortie.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h2 id=\"quelle-est-la-difference-entre-un-capteur-de-courant-traditionnel-et-un-tore-rogowski\">Quelle est la diff\u00e9rence entre un capteur de courant traditionnel et un tore Rogowski ?<\/h2>\n<p><span data-contrast=\"auto\">Le tore de Rogowski se distingue des capteurs de courant traditionnels, tels que <\/span><a href=\"https:\/\/lettel.com\/fr\/ressources\/les-transformateurs-de-courant\/\"><span data-contrast=\"none\">les transformateurs de courant<\/span><\/a><span data-contrast=\"auto\"> (TC) ferm\u00e9s ou ouvrants. En effet, ces derniers sont souvent lourds, encombrants, rigides et difficilement maniables, ce qui complique leur installation dans des espaces exigus. La boucle de Rogowski est quant \u00e0 elle exempte de mat\u00e9riaux ferromagn\u00e9tiques, ce qui lui conf\u00e8re <strong>souplesse, l\u00e9g\u00e8ret\u00e9 et maniabilit\u00e9.<\/strong>&nbsp;<\/span><\/p>\n<h2 id=\"quand-utiliser-un-capteur-de-courant-avec-boucle-de-rogowski\">Quand utiliser un capteur de courant avec boucle de Rogowski ? &nbsp;<\/h2>\n<p><span data-contrast=\"auto\">Les capteurs de courant de type boucle Rogowski sont surtout pl\u00e9biscit\u00e9s pour la mesure de fortes amplitudes (entre 600 \u00e0 6 000 A en moyenne), sur du courant alternatif, notamment dans le secteur industriel, <a href=\"https:\/\/lettel.com\/fr\/ressources\/decret-tertiaire\/\">tertiaire <\/a>et dans le domaine des \u00e9nergies renouvelables.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p><span data-ccp-props=\"{}\">&nbsp;<\/span><span data-contrast=\"auto\">Voici quelques exemples de cas d\u2019usage d\u2019un capteur de courant avec une bobine de Rogowski :&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Surveiller les r\u00e9seaux \u00e9lectriques haute tension sur un site industriel ou <a href=\"https:\/\/lettel.com\/fr\/ressources\/decret-tertiaire\/\">tertiaire <\/a>;&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Mesurer le courant de moteurs, g\u00e9n\u00e9rateurs et machines industrielles ;&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Identifier <\/span><span aria-label=\"Contr\u00f4le de contenu de texte enrichi\"><span data-contrast=\"auto\">\u200bl<\/span><\/span><span data-contrast=\"auto\">es \u00e9ventuels courts-circuits ou surtensions au sein d\u2019un site de production ;&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Surveiller la production et la distribution de courant d\u2019\u00e9oliennes ou de panneaux photovolta\u00efques ;<span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Mesurer le courant <\/span><span aria-label=\"Contr\u00f4le de contenu de texte enrichi\"><span data-contrast=\"auto\">\u200b<\/span><span data-contrast=\"auto\">\u200b<\/span><\/span><span data-contrast=\"auto\">des bornes de recharge pour voitures \u00e9lectriques ;&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u2026&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<\/ul>\n<h2 id=\"quelles-sont-les-applications-concretes-des-boucles-de-courant-rogowski\">Quelles sont les applications concr\u00e8tes des boucles de courant Rogowski ?<\/h2>\n<p>Les boucles de Rogowski sont utilis\u00e9es dans l\u2019industrie lourde pour mesurer de tr\u00e8s forts courants, dans la distribution \u00e9lectrique et dans les armoires \u00e9lectriques pour surveiller les installations et prot\u00e9ger les \u00e9quipements. Elles sont \u00e9galement employ\u00e9es dans le transport ferroviaire, les \u00e9nergies renouvelables ou encore en \u00e9lectronique de puissance et variateurs.<\/p>\n<div class=\"row justify-content-around text-center g-4 mt-3\">\n<div class=\"col-4 col-md-4 col-lg-2 d-flex flex-column align-items-center\">\n    <i class=\"fas fa-industry\" style=\"color: #1b1945; font-size: 3rem; font-style: normal;\"><\/i><br \/>\n    <span style=\"margin-top: 0.5rem;\">Industrie lourde<\/span>\n  <\/div>\n<div class=\"col-4 col-md-4 col-lg-2 d-flex flex-column align-items-center\">\n    <i class=\"fas fa-bolt\" style=\"color: #1b1945; font-size: 3rem; font-style: normal;\"><\/i><br \/>\n    <span style=\"margin-top: 0.5rem;\">Distribution &#038; Armoires<\/span>\n  <\/div>\n<div class=\"col-4 col-md-4 col-lg-2 d-flex flex-column align-items-center\">\n    <i class=\"fas fa-train\" style=\"color: #1b1945; font-size: 3rem; font-style: normal;\"><\/i><br \/>\n    <span style=\"margin-top: 0.5rem;\">Transport ferroviaire<\/span>\n  <\/div>\n<div class=\"col-4 col-md-4 col-lg-2 d-flex flex-column align-items-center\">\n    <i class=\"fas fa-solar-panel\" style=\"color: #1b1945; font-size: 3rem; font-style: normal;\"><\/i><br \/>\n    <span style=\"margin-top: 0.5rem;\">\u00c9nergies renouvelables<\/span>\n  <\/div>\n<div class=\"col-4 col-md-4 col-lg-2 d-flex flex-column align-items-center\">\n    <i class=\"fas fa-microchip\" style=\"color: #1b1945; font-size: 3rem; font-style: normal;\"><\/i><br \/>\n    <span style=\"margin-top: 0.5rem;\">\u00c9lectronique de puissance<\/span>\n  <\/div>\n<\/div>\n<h2 id=\"capteur-de-courant-avec-boucle-de-rogowski-quels-avantages\">Capteur de courant avec boucle de Rogowski : quels avantages ?<span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">&nbsp;<\/span><\/h2>\n<p><span data-contrast=\"auto\">L\u2019installation d\u2019un capteur de courant de type Rogowski pr\u00e9sente de multiples avantages pour les tableautiers et les industriels, parmi lesquels :&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Une grande flexibilit\u00e9 :<\/strong> la boucle est souple et l\u00e9g\u00e8re, ce qui offre une installation simple et rapide, m\u00eame dans les espaces \u00e9troits, difficilement accessibles ou autour de conducteurs de grande taille ; <\/span>&nbsp;<span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Un gain de place :<\/strong> gr\u00e2ce \u00e0 sa faible quantit\u00e9 de composants, la boucle occupe tr\u00e8s peu d\u2019espace dans l\u2019armoire \u00e9lectrique.<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Une facilit\u00e9 d\u2019int\u00e9gration :<\/strong> les boucles, ouvrantes et flexibles, offrent <\/span><span aria-label=\"Contr\u00f4le de contenu de texte enrichi\"><span data-contrast=\"auto\">\u200b<\/span><span data-contrast=\"auto\">\u200b<\/span><\/span><span data-contrast=\"auto\"><a href=\"https:\/\/lettel.com\/fr\/categories-produits\/equipement-armoire\/\">un c\u00e2blage rapide et un raccordement simplifi\u00e9<\/a>.&nbsp;<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Une haute pr\u00e9cision :<\/strong> ces produits offrent une classe de pr\u00e9cision lin\u00e9aire excellente, sur toute la plage de mesure, m\u00eame \u00e0 haute fr\u00e9quence. <a href=\"https:\/\/lettel.com\/fr\/ressources\/classe-de-precision-compteur-electrique\/\">Lettel vous garantit une classe de pr\u00e9cision de 0,5%<\/a> selon positionnement de la boucle sur le conducteur\u202f(voir ci-dessous).&nbsp;<\/span><\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><strong>\u2192 Avertissement\u202f:<\/strong><span style=\"color: #1eb4e6;\"> la pr\u00e9cision indiqu\u00e9e est valable pour les boucles produites en usine avec des c\u00e2bles de sortie jusqu\u2019\u00e0 longueur 150 m\u00e8tres. Le fait de rallonger ult\u00e9rieurement les c\u00e2bles de sortie entra\u00eene ainsi une perte de pr\u00e9cision.&nbsp;<\/span><\/p>\n<ul>\n<li><span data-ccp-props=\"{&quot;335559685&quot;:720}\">&nbsp;<\/span><span style=\"font-size: 15px;\" data-contrast=\"auto\"><strong>Une absence de saturation :<\/strong> \u00e0 la diff\u00e9rence des capteurs dot\u00e9s d\u2019un noyau magn\u00e9tique, la Tore de Rogowski n\u2019est pas sujette \u00e0 la saturation.<\/span><span style=\"font-size: 15px;\">&nbsp;<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"6\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Un dispositif r\u00e9sistant et durable :<\/strong> la boucle est insensible aux variations de temp\u00e9rature, contrairement aux capteurs traditionnels, ce qui prolonge sa dur\u00e9e de vie.&nbsp;<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Une s\u00e9curit\u00e9 renforc\u00e9e<\/strong> gr\u00e2ce \u00e0 une sortie mV sans \u00e9chauffement, comme nous le proposons chez Lettel, et \u00e0 la possibilit\u00e9 de d\u00e9connecter le secondaire \u00e0 pleine charge (IP67 \u00e0 IP68 selon les mod\u00e8les).<\/span><\/li>\n<\/ul>\n<ul>\n<li data-leveltext=\"\u25cf\" data-font=\"\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\u25cf&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"8\" data-aria-level=\"1\"><span data-contrast=\"auto\"><strong>Une continuit\u00e9 op\u00e9rationnelle :<\/strong> les bobines Rogowski ne n\u00e9cessitent pas d\u2018interruption du circuit \u00e9lectrique lors de leur installation, ce qui permet d\u2019assurer la continuit\u00e9 des op\u00e9rations.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">D\u00e9sireux de fournir des solutions toujours plus performantes et simples d\u2019utilisation, nous proposons, chez Lettel, une gamme de compteurs \u00e9lectriques et de centrales de mesures avec entr\u00e9es mV offrant un raccordement direct avec des boucles de Rogowski. Ils ne n\u00e9cessitent ni convertisseurs externes ni module d\u2019alimentation d\u00e9di\u00e9. Ces dispositifs offrent par ailleurs des plages de mesure allant jusqu\u2019\u00e0 10 000 A.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h2 aria-level=\"2\" aria-level=\"2\" id=\"comment-installer-un-capteur-de-courant-rogowski\">Comment installer un capteur de courant Rogowski ?<span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:360,&quot;335559739&quot;:120}\">&nbsp;<\/span><\/h2>\n<p><span data-contrast=\"auto\">Voici les \u00e9tapes cl\u00e9s \u00e0 suivre pour installer un capteur de courant de type Rogowski :&nbsp;<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h3 aria-level=\"3\" aria-level=\"3\" id=\"positionnement-du-conducteur\">Positionnement du conducteur&nbsp;<\/h3>\n<p><span data-contrast=\"auto\">Comme expliqu\u00e9 ci-dessous, le positionnement central du conducteur permet de garantir une pr\u00e9cision de mesure optimale\u202f:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_9731\" style=\"width: 612px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-9731\" class=\"wp-image-9731 size-full\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Precision-Rogowski.jpg\" alt=\"Positionnement du conducteur rogowski\" width=\"602\" height=\"141\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Precision-Rogowski.jpg 602w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Precision-Rogowski-300x70.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/01\/Precision-Rogowski-600x141.jpg 600w\" sizes=\"(max-width: 602px) 100vw, 602px\" \/><\/p>\n<p id=\"caption-attachment-9731\" class=\"wp-caption-text\">&nbsp;<\/p>\n<\/div>\n<h3 id=\"fixation-de-la-boucle-rogowski\">Fixation de la boucle Rogowski&nbsp;<\/h3>\n<p><span data-contrast=\"auto\">La boucle Rogowski peut \u00eatre fix\u00e9e de diff\u00e9rentes fa\u00e7ons selon le type de conducteur et les accessoires utilis\u00e9s\u202f:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n<h4 id=\"fixation-de-la-boucle-rogowski-sur-cable\"><span data-contrast=\"none\">Fixation de la boucle Rogowski sur c\u00e2ble<\/span><\/h4>\n<p>Un attache-collier est livr\u00e9 avec la boucle pour l\u2019enrouler autour du conducteur.&nbsp;<\/p>\n<p><span data-contrast=\"auto\">Pour les boucles Rogowski de diam\u00e8tre plus important, <\/span><a href=\"https:\/\/lettel.com\/fr\/produit\/mtcr-s3\/\"><span data-contrast=\"none\">le support triaxial MTCR-S3<\/span><\/a><span data-contrast=\"auto\"> permet de centrer le conducteur, de la fa\u00e7on suivante\u202f:<\/span><span data-ccp-props=\"{}\"><br \/>\n<\/span><\/p>\n<p><span data-contrast=\"auto\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-9798\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-cable.jpg\" alt=\"boucle de courant rogowski sur cable\" width=\"1000\" height=\"750\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-cable.jpg 1000w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-cable-300x225.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-cable-768x576.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-cable-600x450.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<h4 id=\"fixation-de-la-boucle-rogowski-sur-barre-conductrice\"><span style=\"font-size: 15px;\" data-contrast=\"none\">Fixation de la boucle Rogowski sur barre conductrice<\/span><span style=\"font-size: 15px;\" data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:280,&quot;335559739&quot;:80}\">&nbsp;<\/span><\/h4>\n<p><span data-ccp-props=\"{}\">&nbsp;<\/span><span data-contrast=\"auto\">Le transformateur de courant Rogowski peut se fixer sur la barre directement \u00e0 l\u2019aide de l\u2019attache-collier fourni ou par l\u2019interm\u00e9diaire du <\/span><a href=\"https:\/\/lettel.com\/fr\/produit\/support-rogowski-mtcr-sv\/\"><span data-contrast=\"none\">support MTCR-SV<\/span><\/a><span data-contrast=\"auto\"> qui permet \u00e9galement de capter la tension de la phase mesur\u00e9e gr\u00e2ce au <\/span><a href=\"https:\/\/lettel.com\/fr\/produit\/cordon-tension-mtcr-cu\/\"><span data-contrast=\"none\">cordon additionnel MTCR-CU-3x<\/span><\/a><span data-contrast=\"auto\">. Il faudra n\u00e9anmoins prot\u00e9ger les prises de tension par un disjoncteur ou fusible de calibre adapt\u00e9.<\/span><span data-ccp-props=\"{}\"><br \/>\n<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-9799\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre.jpg\" alt=\"capteur courant rogowski sur barre\" width=\"2522\" height=\"1920\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre.jpg 2522w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre-300x228.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre-1024x780.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre-768x585.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre-1536x1169.jpg 1536w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre-2048x1559.jpg 2048w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/boucle-rogowski-sur-barre-600x457.jpg 600w\" sizes=\"(max-width: 2522px) 100vw, 2522px\" \/><\/p>\n<h2 id=\"comment-raccorder-un-capteur-de-courant-rogowski\">Comment raccorder un capteur de courant Rogowski ?&nbsp;&nbsp;&nbsp;<\/h2>\n<p><span data-ccp-props=\"{}\">&nbsp;<\/span><span data-contrast=\"auto\">Le signal de sortie est en mV et il est exprim\u00e9 en mV\/kA. Les boucles de Rogowski peuvent ainsi \u00eatre associ\u00e9es\u202f:<\/span><\/p>\n<ul>\n<li data-leveltext=\"-\" data-font=\"Cambria\" data-listid=\"5\" data-list-defn-props=\"{&quot;335551671&quot;:0,&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Cambria&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;-&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-contrast=\"none\">\u00c0 un instrument de mesure \u00e0 entr\u00e9e mV.<\/span><span data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<li data-leveltext=\"-\" data-font=\"Cambria\" data-listid=\"5\" data-list-defn-props=\"{&quot;335551671&quot;:0,&quot;335552541&quot;:1,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Cambria&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;-&quot;,&quot;469777815&quot;:&quot;multilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-contrast=\"auto\">\u00c0 <\/span><span data-contrast=\"none\">un convertisseur de signal, tel que les convertisseurs <\/span><a href=\"https:\/\/lettel.com\/fr\/produit\/convertisseur-mtcr-c\/\"><span data-contrast=\"none\">MTCR-C-x-1<\/span><\/a><span data-contrast=\"none\"> \u00e0 sortie 0-1A ou les <\/span><a href=\"https:\/\/lettel.com\/fr\/produit\/mtcr-c-x-5\/\"><span data-contrast=\"none\">MTCR-C-x-5<\/span><\/a><span data-contrast=\"none\"> \u00e0 sortie 5A, pour raccordement sur tous types de compteurs ou de centrales \u00e0 entr\u00e9e 1\/5A.<\/span><span data-ccp-props=\"{&quot;335572071&quot;:0,&quot;335572072&quot;:0,&quot;335572073&quot;:0,&quot;335572075&quot;:0,&quot;335572076&quot;:0,&quot;335572077&quot;:0,&quot;335572079&quot;:0,&quot;335572080&quot;:0,&quot;335572081&quot;:0,&quot;335572083&quot;:0,&quot;335572084&quot;:0,&quot;335572085&quot;:0,&quot;335572087&quot;:0,&quot;335572088&quot;:0,&quot;335572089&quot;:0,&quot;469789798&quot;:&quot;nil&quot;,&quot;469789802&quot;:&quot;nil&quot;,&quot;469789806&quot;:&quot;nil&quot;,&quot;469789810&quot;:&quot;nil&quot;,&quot;469789814&quot;:&quot;nil&quot;}\">&nbsp;<\/span><\/li>\n<\/ul>\n<h2 id=\"quelles-sont-les-differences-entre-une-bobine-rogowski-et-un-transducteur-de-courant\">Quelles sont les diff\u00e9rences entre une bobine Rogowski et un transducteur de courant ?<\/h2>\n<p>Une bobine de Rogowski mesure la variation du courant avec une installation <strong>non intrusive<\/strong> et <strong>sans risque de saturation<\/strong> tandis qu\u2019un transducteur de courant ou transformateur de courant convertit directement le courant primaire en un signal proportionnel via un noyau magn\u00e9tique. Les tc sont utilis\u00e9s principalement pour la protection et la surveillance classique des installations \u00e9lectriques.<br \/>\n<img decoding=\"async\" width=\"1500\" height=\"641\" class=\"aligncenter size-full wp-image-9801\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/gamme-boucle-rogowski.jpg\" alt=\"gamme de boucles Rogowski Lettel\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/gamme-boucle-rogowski.jpg 1500w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/gamme-boucle-rogowski-300x128.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/gamme-boucle-rogowski-1024x438.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/gamme-boucle-rogowski-768x328.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/02\/gamme-boucle-rogowski-600x256.jpg 600w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/p>\n<h3 id=\"dedouvrez-nos-produits\">D\u00e9douvrez nos produits<\/h3>\n<p>Livr\u00e9es avec une <a href=\"https:\/\/lettel.com\/fr\/ressources\/accessoire-cablage\/\">longueur de c\u00e2ble pouvant aller jusqu\u2019\u00e0 150 m\u00e8tres<\/a> (sans perte de pr\u00e9cision), facilitant ainsi la liaison avec des appareils souvent \u00e9loign\u00e9s des armoires \u00e9lectriques, tels que des panneaux solaires. Les diam\u00e8tres des bobines, les couleurs, le type de sortie et les int\u00e9grations sont \u00e9galement personnalisables en fonction de vos besoins.<\/p>\n<div class=\"container p-0\">\n<div class=\"row g-4 list-product-wrp\">\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/boucle-rogowski-mtcr-24-300\/\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-24-300-ouverte-1.jpg\" alt=\"MTCR-24-300\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MTCR-24-300<\/p>\n<p class=\"text-center c-desc\">Boucle flexible Rogowski 300A \u2013 Ouverture \u00d824 mm<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/capteur-courant-rogowski-mtcr-36-600\/\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2.jpg\" alt=\"MTCR-36-600\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MTCR-36-600<\/p>\n<p class=\"text-center c-desc\">Boucle flexible Rogowski 600A \u2013 Ouverture \u00d836 mm<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/boucle-rogowski-mtcr-100-1000\/\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-100-1000-ouverte.jpg\" alt=\"MTCR-100-1000\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MTCR-100-1000<\/p>\n<p class=\"text-center c-desc\">Boucle flexible Rogowski 1000A \u2013 Ouverture \u00d8100 mm<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<\/div>\n<\/div>\n<div class=\"container p-0\">\n<div class=\"row g-4 list-product-wrp\">\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/capteur-courant-mtcr-150-3000\/\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte.jpg\" alt=\"MTCR-150-3000\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MTCR-150-3000<\/p>\n<p class=\"text-center c-desc\">Boucle flexible Rogowski 3000A \u2013 Ouverture \u00d8150 mm<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/capteur-rogowski-mtcr-200-6000\/\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-200-6000-ouverte.jpg\" alt=\"MTCR-200-6000\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MTCR-200-6000<\/p>\n<p class=\"text-center c-desc\">Boucle flexible Rogowski 6000A \u2013 Ouverture \u00d8200 mm<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<\/div>\n<\/div>\n<p>Des <a href=\"https:\/\/lettel.com\/fr\/accessoires-pour-boucles-rogowski-2\/\">accessoires pour boucles de Rogowski<\/a> (support de fixation, cordon de prise de tension\u2026). Des convertisseurs pour associer des boucles de Rogowski \u00e0 tout instrument de mesure \u00e0 entr\u00e9e 1A ou 5A.<\/p>\n<h3 id=\"des-compteurs-et-centrales-compatibles\">Des compteurs et centrales compatibles<\/h3>\n<p>Le compteur \u00e9lectrique modulaire <a href=\"https:\/\/lettel.com\/fr\/produit\/compteur-electrique-ethernet-rogowski-mcx4-34\/\">MCX4-34V<\/a> \u00e9quip\u00e9 d\u2019un bo\u00eetier de largeur 70 mm qui se clipse sur le rail-din d\u2019un coffret \u00e9lectrique ou d\u2019un tableau de distribution.<\/p>\n<p>Les centrales de mesure encastrables <a href=\"https:\/\/lettel.com\/fr\/produit\/centrale-mesure-rogowski-mae-96v\/\">MAE-96V<\/a> (format 96x96mm), et <a href=\"https:\/\/lettel.com\/fr\/produit\/analyseur-circuit-electrique-mae-72\/\">MAE-72V<\/a> (format 72x72mm), qui s\u2019installent sur une porte d\u2019armoire \u00e9lectrique ou un coffret de distribution.<\/p>\n<div class=\"container p-0 pt-4\">\n<div class=\"row g-4 list-product-wrp\">\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/compteur-electrique-ethernet-rogowski-mcx4-34\/\"><img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v.jpg\" alt=\"MCX4-34\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MCX4-34<\/p>\n<p class=\"text-center c-desc\">Compteurs TC ou boucles Rogowski \u2013 Modbus RS485 RTU et Ethernet TCP\/IP<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/analyseur-circuit-electrique-mae-72\/\"><img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/10\/MAE-72A_IO_S.jpg\" alt=\"MAE-72V\/A\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MAE-72V\/A<\/p>\n<p class=\"text-center c-desc\">Centrale 72\u00d772 pour TC Rogowski ou TC 1\/5A \u2013 Modbus et sorties relais<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<article class=\"col-12 col-lg-4 bg-light p-2 aos-init aos-animate\" style=\"align-self: flex-start;\" data-aos=\"fade-up\" data-aos-delay=\"50\"><a class=\"c-card-product\" style=\"text-decoration: none; color: inherit;\" href=\"https:\/\/lettel.com\/fr\/produit\/centrale-mesure-rogowski-mae-96v\/\"><img decoding=\"async\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mae-96x.jpg\" alt=\"MAE-96V\/A\" \/><\/p>\n<div class=\"c-txt\">\n<p class=\"c-ttl c-ttl__md\">MAE-96V\/A<\/p>\n<p class=\"text-center c-desc\">Centrale de mesure encastrable pour boucles Rogowski ou TC 1\/5A<\/p>\n<\/div>\n<p><\/a><\/p>\n<\/article>\n<\/div>\n<\/div>\n              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d\u00e9veloppement Lettel                                    <\/p>\r\n                                                            <\/div>\r\n\r\n                            <div class=\"author-right\">\r\n                                <div class=\"author-bio editor\">\r\n                                    <p>Je travaille depuis pr\u00e8s de 10 ans dans le domaine de l&rsquo;\u00e9lectricit\u00e9, avec une expertise centr\u00e9e sur la pr\u00e9cision des mesures, la fiabilit\u00e9 des \u00e9quipements et les applications terrain.<\/p>\n<p>Domaines d\u2019expertise :<\/p>\n<ul>\n<li>Mesure et instrumentation \u00e9lectrique<\/li>\n<li>D\u00e9veloppement et optimisation de produits \u00e9lectriques<\/li>\n<li>Contr\u00f4le de performance et fiabilit\u00e9 des \u00e9quipements<\/li>\n<li>Innovation et am\u00e9lioration continue des solutions \u00e9lectriques<\/li>\n<\/ul>\n                                <\/div>\r\n                            <\/div>\r\n                        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href=\"https:\/\/claude.ai\/new?q=Peux-tu%20me%20faire%20un%20r%C3%A9sum%C3%A9%20de%20l%27article%20https%3A%2F%2Flettel.com%2Ffr%2Fressources%2Ftore-rogowski%2F%20en%2050%20mots%2C%20en%20pr%C3%A9cisant%20les%20%C3%A9l%C3%A9ments%20cl%C3%A9s%20%C3%A0%20retenir%20%3F\" target=\"_blank\" rel=\"noopener\" title=\"Claude\">\r\n        <img decoding=\"async\" class=\"ico\" src=\"https:\/\/lettel.com\/wp-content\/themes\/lettel\/assets\/dist\/svg\/ico-claude-blue.svg\" alt=\"Claude\">\r\n      <\/a>\r\n    <\/li>\r\n\r\n      <\/ul>\r\n<\/div>                    <div class=\"c-nav\">\r\n                        <p class=\"c-nav_ttl\">Sommaire<\/p>\r\n                        <ul class='table-content'><li class='table-content_item-lvl-2'><a class='table-content_link' href='#comment-fonctionne-un-capteur-de-courant-avec-boucle-de-rogowski'>Comment fonctionne un capteur de courant avec boucle de Rogowski ?&nbsp;<\/a><li><a class='table-content_link' href='#quelle-est-la-difference-entre-un-capteur-de-courant-traditionnel-et-un-tore-rogowski'>Quelle est la diff\u00e9rence entre un capteur de courant traditionnel et un tore Rogowski ?<\/a><li><a class='table-content_link' href='#quand-utiliser-un-capteur-de-courant-avec-boucle-de-rogowski'>Quand utiliser un capteur de courant avec boucle de Rogowski ? &nbsp;<\/a><li><a class='table-content_link' href='#quelles-sont-les-applications-concretes-des-boucles-de-courant-rogowski'>Quelles sont les applications concr\u00e8tes des boucles de courant Rogowski ?<\/a><li><a class='table-content_link' href='#capteur-de-courant-avec-boucle-de-rogowski-quels-avantages'>Capteur de courant avec boucle de Rogowski : quels avantages ?&nbsp;<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#fixation-de-la-boucle-rogowski'>Fixation de la boucle Rogowski&nbsp;<\/a><\/ul><li class='table-content_item-lvl-2'><a class='table-content_link' href='#comment-raccorder-un-capteur-de-courant-rogowski'>Comment raccorder un capteur de courant Rogowski ?&nbsp;&nbsp;&nbsp;<\/a><li><a class='table-content_link' href='#quelles-sont-les-differences-entre-une-bobine-rogowski-et-un-transducteur-de-courant'>Quelles sont les diff\u00e9rences entre une bobine Rogowski et un transducteur de courant ?<\/a><ul class='table-content'><li class='table-content_item-lvl-3'><a class='table-content_link' href='#dedouvrez-nos-produits'>D\u00e9douvrez nos produits<\/a><li><a class='table-content_link' href='#des-compteurs-et-centrales-compatibles'>Des compteurs et centrales compatibles<\/a><\/li><\/ul>                    <\/div>\r\n                <\/div>\r\n            <\/aside>\r\n        <\/div>\r\n\r\n    <\/div>\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-related-products spc-s5 bg-cg\">\r\n\r\n\t\t\t<header class=\"c-heading\">\r\n\t\t\t\t<div class=\"container\">\r\n\t\t\t\t\t<h2 class=\"c-ttl\" class=\"c-ttl\" id=\"les-capteurs-rogowski-et-instruments-de-mesure-associes\">Les capteurs Rogowski et instruments de mesure associ\u00e9s<\/h2>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/header>\r\n\r\n\t\t\t<div class=\"container\">\r\n\t\t\t\t<div class=\"swiper\" swiper-type=\"3\">\r\n\t\t\t\t\t<div class=\"swiper-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='996'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/capteur-courant-rogowski-mtcr-36-600\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"boucle-rogowski-mtcr-26-600\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-36-600-ouverte-2.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">MTCR-36-600<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"boucle-flexible-rogowski-600a-ouverture-o36-mm\">Boucle flexible Rogowski 600A &#8211; Ouverture \u00d836 mm<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='4875'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/centrale-mesure-rogowski-mae-96v\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"mae-96x\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mae-96x.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mae-96x-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mae-96x-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mae-96x-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mae-96x.jpg 600w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">MAE-96V\/A<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"centrale-de-mesure-encastrable-pour-boucles-rogowski-ou-tc-1-5a\">Centrale de mesure encastrable pour boucles Rogowski ou TC 1\/5A<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='6835'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/capteur-courant-rogowski-mtcr-150-3000-mep\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"MTCR-150-3000-MEP (Photo produit)\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2023\/11\/MTCR-150-3000_Famille.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">MTCR-150-3000-MEP<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"lot-de-4-capteurs-de-courant-rogowski-3000a-o150mm-pour-analyseur-mep-1\">Lot de 4 capteurs de courant Rogowski 3000A \u00d8150mm pour analyseur MEP-1<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='4870'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/compteur-electrique-ethernet-rogowski-mcx4-34\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"centrale de mesure mcx4-34v pour boucle Rogowski\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2022\/08\/mcx4-45v.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">MCX4-34<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"compteurs-tc-ou-boucles-rogowski-modbus-rs485-rtu-et-ethernet-tcp-ip\">Compteurs TC ou boucles Rogowski &#8211; Modbus RS485 RTU et Ethernet TCP\/IP <\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='1000'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/convertisseur-mtcr-c\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Convertisseur-mtcr-c\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-face-avant.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">MTCR-C-x-1<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"convertisseur-mv-1a-pour-associer-3-boucles-rogowski-a-un-compteur\">Convertisseur mV\/1A pour associer 3 boucles Rogowski \u00e0 un compteur<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='998'>\r\n\t\t\t\t\t\t\t\t\r\n<a class=\"c-card-product\" href='https:\/\/lettel.com\/fr\/produit\/capteur-courant-mtcr-150-3000\/'>\r\n\t<figure class=\"media-wrp__1x1\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"capteur-rogowski-mtcr-150-3000\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte-1.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte-1-300x273.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte-1-600x547.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte-1-1024x933.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte-1-768x700.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2021\/11\/MTCR-150-3000-ouverte-1.jpg 1097w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t<p class=\"c-ttl c-ttl__md\">MTCR-150-3000<\/p>\r\n\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"boucle-flexible-rogowski-3000a-ouverture-o150-mm\">Boucle flexible Rogowski 3000A &#8211; Ouverture \u00d8150 mm<\/h3>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t \r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<div class=\"b-pagi swiper-pagination\"><\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"container container-navi\">\r\n\t\t\t\t\t<div class=\"swiper-button-prev\"><\/div>\r\n\t\t\t\t\t<div class=\"swiper-button-next\"><\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-related-posts bg-cg spc-s3\">\r\n\r\n\t\t<header class=\"c-heading\">\r\n\t\t\t<div class=\"container\">\r\n\t\t\t\t<h2 class=\"c-ttl\" class=\"c-ttl\" id=\"les-autres-cahiers-techniques-lettel\">Les autres cahiers techniques Lettel<\/h2>\r\n\t\t\t<\/div>\r\n\t\t<\/header>\r\n\r\n\t\t<div class=\"container\">\r\n\t\t\t<div class=\"swiper\" swiper-type=\"3\">\r\n\t\t\t\t<div class=\"swiper-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='9396'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/decret-tertiaire\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Comprendre le d\u00e9cret tertiaire\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc-300x194.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc-600x388.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2024\/12\/eco-friendly-green-living-2023-11-27-05-17-27-utc.jpg 735w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">D\u00e9cret tertiaire : d\u00e9finition, objectif et application<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"le-champ-dapplication-les-exigences-et-lenjeu-envirennomental\">Le champ d&rsquo;application, les exigences et l&rsquo;enjeu envirennomental<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 4 d\u00e9cembre 2024<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='15721'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/probleme-energie-negative-diagnostic-solutions\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Mesure et \u00e9nergie n\u00e9gative\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative-300x300.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative-150x150.jpg 150w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative-768x768.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative-600x600.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative-100x100.jpg 100w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/09\/cahier-energie-negative.jpg 1000w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">Probl\u00e8me d\u2019\u00e9nergie n\u00e9gative : diagnostic et solutions techniques<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"les-5-etapes-cles-pour-identifier-le-probleme\">Les 5 \u00e9tapes cl\u00e9s pour identifier le probl\u00e8me<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 18 septembre 2025<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='16028'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/sommateurs-de-courant-fonctionnement-installation\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Sommateur raccord\u00e9\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/mtcs-racc.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/mtcs-racc-300x211.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/mtcs-racc-768x540.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/mtcs-racc-600x422.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/mtcs-racc.jpg 901w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">Sommateurs de courant : fonctionnement, installation, r\u00e9glementation<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"tout-comprendre-sur-les-sommateurs-de-courant\">Tout comprendre sur les sommateurs de courant<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 29 octobre 2025<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"swiper-slide\" id='2312'>\r\n\t\t\t\t\t\t\t\r\n<a class=\"c-card-post\" href='https:\/\/lettel.com\/fr\/ressources\/communication-modbus\/'>\r\n\t<figure class=\"media-wrp__4x3\">\r\n\t\t<img decoding=\"async\" class=\"media\" alt=\"Communication Modbus\" src=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication.jpg\" srcset=\"https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-300x215.jpg 300w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-1024x734.jpg 1024w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-768x551.jpg 768w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication-600x430.jpg 600w, https:\/\/lettel.com\/wp-content\/uploads\/2025\/10\/Modbus-communication.jpg 1527w\" sizes=\"(min-width: 992px) 397px, (min-width: 1200px) 480px, (min-width: 1400px) 560px, (min-width: 1600px) 640px, 100vw\">\r\n\t<\/figure>\r\n\t<div class=\"c-txt\">\r\n\t\t\t<p class=\"c-ttl c-ttl__md ttl-brd\">La communication RS485 Modbus<\/p>\r\n\t\t\t<h3 class=\"c-desc\" class=\"c-desc\" id=\"comprendre-ce-protocole-dechanges-dinformations-entre-equipements\">Comprendre ce protocole d&rsquo;\u00e9changes d&rsquo;informations entre \u00e9quipements<\/h3>\r\n\t\t\t<p class=\"c-date\">Publi\u00e9 le 22 avril 2025<\/p>\r\n\t\t\t<button class=\"c-link\">En savoir plus<\/button>\r\n\t<\/div>\r\n<\/a>\t\t\t\t\t\t<\/article>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"b-pagi swiper-pagination\"><\/div>\r\n\t\t\t<\/div>\r\n\t\t\t<div class=\"container container-navi\">\r\n\t\t\t\t<div class=\"swiper-button-prev\"><\/div>\r\n\t\t\t\t<div class=\"swiper-button-next\"><\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\r\n<\/section>\r\n\r\n\n\n\r\n\r\n<section class=\"blc-banner spc-s3 bg-c4\"> \r\n\t<div class=\"container tpl1\">\r\n\r\n\t\t<div class=\"row\">\r\n\t\t\t<div class=\"b-txt col-lg-6\">\r\n\t\t\t\t<h2 class=\"b-ttl\" data-aos=\"fade-up\" class=\"b-ttl\" data-aos=\"fade-up\" id=\"vous-souhaitez-etre-conseille\">Vous souhaitez \u00eatre conseill\u00e9&nbsp;?<\/h2>\t\t\t\t\t\t\t\t<a class=\"btn btn-c1\" data-aos=\"fade-up\" data-aos-delay=\"150\" href=\"https:\/\/lettel.com\/fr\/contact\/\">Contactez-nous<\/a>\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\r\n\t<\/div>\r\n<\/section>\r\n\r\n","protected":false},"excerpt":{"rendered":"D\u00e9finition, fonctionnement et avantages\u00a0\u00a0","protected":false},"author":12,"featured_media":9798,"template":"","class_list":["post-9727","ressources","type-ressources","status-publish","has-post-thumbnail","hentry","ress-format-cahier-technique"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Transformateurs de courant type boucle de Rogowski<\/title>\n<meta name=\"description\" content=\"Zoom sur les caract\u00e9ristiques, le fonctionnement, les applications et les avantages de ce 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