{"id":197532,"date":"2016-09-27T00:00:00","date_gmt":"2016-09-27T00:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/capteur-de-tension-compact-pour-applications-de-traction\/"},"modified":"2016-09-27T00:00:00","modified_gmt":"2016-09-27T00:00:00","slug":"capteur-de-tension-compact-pour-applications-de-traction","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/capteur-de-tension-compact-pour-applications-de-traction\/","title":{"rendered":"Capteur de tension compact pour applications de traction"},"content":{"rendered":"<p align=\"left\">Le capteur de cette s\u00e9rie est 30&nbsp;% moins haut, 25 % moins encombrant et plus l\u00e9ger de 56 %&nbsp;que la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente tout en \u00e9tant r\u00e9tro-compatible et de performances sup\u00e9rieures. De plus, cette compacit\u00e9 ne compromet pas son haut degr\u00e9 d\u2019immunit\u00e9 contre les perturbations environnantes et contre les variations haute tension. Sa petite taille devient \u00e9galement un avantage en cas de contraintes d\u2019espace, notamment dans les convertisseurs de propulsion ferroviaire modernes.<\/p>\n<p align=\"left\">D\u00e9velopp\u00e9 pour r\u00e9pondre enti\u00e8rement aux exigences du r\u00e9f\u00e9rentiel IRIS (International Railway Industry Standard), ce capteur offre aux ing\u00e9nieurs de l\u2019industrie ferroviaire, travaillant avec du mat\u00e9riel roulant ou des sous-stations, une solution polyvalente capable de mesurer aussi bien des tensions r\u00e9seau que la liaison interm\u00e9diaire DC du convertisseur principal \u00e0 bord des trains. En outre, ses fonctionnalit\u00e9s en font un excellent outil pour un large \u00e9ventail de mesures de moyenne \u00e0 haute tension dans diff\u00e9rents secteurs industriels.<\/p>\n<p align=\"left\">Gr\u00e2ce \u00e0 la technologie num\u00e9rique d\u2019isolation propri\u00e9taire, ce dispositif mesure les tensions directement via une connexion du c\u00f4t\u00e9 primaire, transf\u00e8re les donn\u00e9es \u00e0 travers une barri\u00e8re d\u2019isolation interne et d\u00e9livre un courant de sortie du c\u00f4t\u00e9 secondaire, lequel est proportionnel \u00e0 la tension mesur\u00e9e. Il affiche une pr\u00e9cision typique de +\/-0,5&nbsp;% \u00e0 +25 \u00b0C, ainsi qu\u2019une excellente stabilit\u00e9 en temp\u00e9rature. La technologie utilis\u00e9e offre un niveau tr\u00e8s \u00e9lev\u00e9 d\u2019immunit\u00e9 aux champs magn\u00e9tiques externes (insensibilit\u00e9 quasi totale) ainsi qu\u2019aux perturbations \u00e9lectromagn\u00e9tiques (niveau in\u00e9gal\u00e9).<\/p>\n<p align=\"left\">La conception m\u00e9canique, associ\u00e9e \u00e0 un syst\u00e8me \u00e9lectronique interne hautement sp\u00e9cialis\u00e9, mont\u00e9 sur circuit imprim\u00e9, permettent d\u2019atteindre des performances en mode commun exceptionnelles,&nbsp;avec 0,5&nbsp;% de la tension nominale en marge d&rsquo;erreur atteinte en moins de 50&nbsp;\u00b5s pour une tension de 4200&nbsp;V appliqu\u00e9e avec&nbsp; une pente de 6&nbsp;kV\/\u00b5s.<\/p>\n<hr \/>\n<p align=\"left\">Sa bande passante de mesure (-3&nbsp; dB) est de 12&nbsp;kHz et sa consommation de seulement 30&nbsp;mA (valeur typique) pour une alimentation inf\u00e9rieure \u00e0 +\/-24&nbsp;VDC. La gamme de tension d\u2019alimentation est comprise entre +\/-13,5 V et +\/-26,4&nbsp;V&nbsp;DC. Deux plages de courant de sortie sont possibles, soit +\/-50&nbsp;mA, soit la boucle de courant industrielle standard de 4 \u00e0 20&nbsp;mA pour des mesures de courant unipolaires. Une sortie en tension de +\/-10&nbsp;V est \u00e9galement possible.<\/p>\n<p align=\"left\">Les autres fonctionnalit\u00e9s de ce capteur incluent, entre autre, un temps de r\u00e9ponse rapide et un haut niveau de tension d&rsquo;extinction des d\u00e9charges partielles de 5&nbsp;kV<sub>RMS<\/sub> \u00e0 10&nbsp;pC, assurant une longue dur\u00e9e de vie au produit, ainsi que sa conformit\u00e9 \u00e0 un large \u00e9ventail de normes de s\u00e9curit\u00e9 internationalement reconnues, outre le respect des sp\u00e9cifications IRIS. Gr\u00e2ce \u00e0 diff\u00e9rentes possibilit\u00e9s de connectique, tant du c\u00f4t\u00e9 primaire que secondaire, il offre davantage de flexibilit\u00e9 \u00e0 l&rsquo;utilisateur.<\/p>\n<p align=\"left\">Con\u00e7u conform\u00e9ment aux derni\u00e8res normes en vigueur pour les applications industrielles et de traction, ce capteur utilise des mat\u00e9riaux r\u00e9pondant \u00e0 toutes les exigences en mati\u00e8re de s\u00e9curit\u00e9 incendie et de d\u00e9tection des fum\u00e9es pour les applications ferroviaires. Comme tous les capteurs de ce constructeur, il porte le marquage CE.<\/p>\n<p align=\"left\"><a href=\"http:\/\/www.lem.com\/hq\/fr\" target=\"_blank\" rel=\"noopener\">www.lem.com\/fr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour la mesure de tensions nominales isol\u00e9es dans les applications de traction, LEM propose son capteur s\u00e9rie DVM. Il convient pour une plage comprise entre 600 et 4200 VRMS et int\u00e8gre la technologie propri\u00e9taire d\u2019isolation digitale brevet\u00e9e. Bien qu\u2019atteignant de tr\u00e8s hauts niveaux d\u2019isolation, avec une tension d\u2019isolation de s\u00e9curit\u00e9 de 12 kV, ce dispositif reste tr\u00e8s compact, mesurant seulement 138 x 63,4 x 69 mm.<\/p>\n","protected":false},"author":9,"featured_media":197533,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[910],"domains":[47],"ppma_author":[1141],"class_list":["post-197532","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-sensing-conditioning-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Capteur de tension compact pour applications de traction ...<\/title>\n<meta name=\"description\" content=\"Pour la mesure de tensions nominales isol\u00e9es dans les applications de traction, LEM propose son capteur s\u00e9rie DVM. 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Bien qu\u2019atteignant de tr\u00e8s hauts niveaux d\u2019isolation, avec une tension d\u2019isolation de s\u00e9curit\u00e9 de 12 kV, ce dispositif reste tr\u00e8s compact, mesurant seulement 138 x 63,4 x 69 mm.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/197532\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-09-27T00:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8064_lem_lc263_-_dvm_release_image_r.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2100\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" 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