{"id":17762,"date":"2024-01-20T22:54:47","date_gmt":"2024-01-20T21:54:47","guid":{"rendered":"https:\/\/www.kfactor.it\/shop\/non%20class\u00e9\/att-gn-autotrasformatori-trifase-generatori-di-neutro-da-12-a-100kva\/"},"modified":"2026-04-12T11:30:08","modified_gmt":"2026-04-12T09:30:08","slug":"att-gn-autotrasformatori-trifase-generatori-di-neutro-da-12-a-100kva","status":"publish","type":"product","link":"https:\/\/www.kfactor.it\/fr\/shop\/transformateurs-electriques\/autotransformateurs\/att-gn-autotrasformatori-trifase-generatori-di-neutro-da-12-a-100kva\/","title":{"rendered":"ATT-GN &#8211; AUTOTRANSFORMATEURS TRIPHAS\u00c9S G\u00c9N\u00c9RATEURS DE NEUTRE DE 3 \u00c0 200KVA"},"content":{"rendered":"<h3>AUTOTRANSFORMATEURS TRIPHAS\u00c9S G\u00c9N\u00c9RATEURS DE NEUTRE de 3 \u00e0 200kVA<\/h3>\n<table style=\"height: 200px; background-color: #ffffff;\" width=\"700\">\n<tbody>\n<tr>\n<td>Plusieurs r\u00e9seaux \u00e9lectriques dans le monde ne disposent pas de Neutre ; en pr\u00e9sence de charges monophas\u00e9es, il est n\u00e9cessaire de g\u00e9n\u00e9rer un Neutre stable, m\u00eame avec des charges d\u00e9s\u00e9quilibr\u00e9es. Lorsqu&#8217;il n&#8217;est pas indispensable de s\u00e9parer les charges du r\u00e9seau par un transformateur d&#8217;isolement Dyn11, on peut utiliser un autotransformateur g\u00e9n\u00e9rateur de Neutre. Ce dernier est parfois improprement appel\u00e9 autotransformateur car, du point de vue constructif, il s&#8217;agit d&#8217;une r\u00e9actance connect\u00e9e en Zig-Zag. S&#8217;il est n\u00e9cessaire d&#8217;adapter \u00e9galement la tension du r\u00e9seau (ex. de 220V \u00e0 400V triphas\u00e9), il est possible d&#8217;utiliser un v\u00e9ritable autotransformateur \u00e9l\u00e9vateur avec des couplages en simple ou double Zig-Zag.<\/td>\n<td style=\"width: 70px;\"><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2015\/10\/sch-tmi.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2484\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2015\/10\/sch-tmi-300x225.jpg\" alt=\"sch\u00e9ma transformateur isolement s\u00e9curit\u00e9 \u00e9cran\" width=\"100\" height=\"75\" \/><\/a><\/td>\n<td style=\"width: 50px;\"><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2015\/10\/sim-trafoaut.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2423\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2015\/10\/sim-trafoaut.gif\" alt=\"sim-trafoaut\" width=\"35\" height=\"60\" \/><\/a><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2015\/07\/sim-ce.gif\"><img loading=\"lazy\" decoding=\"async\" class=\" size-full wp-image-2352 aligncenter\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2015\/07\/sim-ce.gif\" alt=\"sim-ce\" width=\"57\" height=\"43\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"height: 28px; background-color: #ffffff;\" width=\"700\">\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpm-01.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3516 size-full\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpm-01.jpg\" alt=\"dessin autotransformateurs triphas\u00e9s g\u00e9n\u00e9rateurs de neutre borniers\" width=\"320\" height=\"240\" srcset=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpm-01.jpg 320w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpm-01-1280x960.jpg 1280w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3515 size-full\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpp-01.jpg\" alt=\"dessin autotransformateurs triphas\u00e9s g\u00e9n\u00e9rateurs de neutre boulons\" width=\"320\" height=\"240\" srcset=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpp-01.jpg 320w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/di-ttpp-01-1280x960.jpg 1280w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">A<\/td>\n<td style=\"text-align: center;\">B<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Voici la traduction de votre tableau technique en fran\u00e7ais, pr\u00eate \u00e0 \u00eatre int\u00e9gr\u00e9e dans votre bloc de contenu :<\/p>\n<table width=\"723\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">R\u00e9f\u00e9rence<\/td>\n<td style=\"text-align: center;\" width=\"124\">Puissance Nominale kVA<\/td>\n<td style=\"text-align: center;\" width=\"180\">Tensions<\/td>\n<td style=\"text-align: center;\" width=\"227\">Dimensions TRAFO mm.<\/td>\n<td style=\"text-align: center;\" width=\"76\">Poids KG.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN249<\/td>\n<td style=\"text-align: center;\" width=\"124\">3<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">240X120X205<\/td>\n<td style=\"text-align: center;\" width=\"76\">12<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN287<\/td>\n<td style=\"text-align: center;\" width=\"124\">5<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">240X130X205<\/td>\n<td style=\"text-align: center;\" width=\"76\">15<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN387<\/td>\n<td style=\"text-align: center;\" width=\"124\">10<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">300X130X255<\/td>\n<td style=\"text-align: center;\" width=\"76\">24<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN403<\/td>\n<td style=\"text-align: center;\" width=\"124\">12<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">300X140X255<\/td>\n<td style=\"text-align: center;\" width=\"76\">29<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN427<\/td>\n<td style=\"text-align: center;\" width=\"124\">15<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">300X150X255<\/td>\n<td style=\"text-align: center;\" width=\"76\">33<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN467<\/td>\n<td style=\"text-align: center;\" width=\"124\">20<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">360X160X305<\/td>\n<td style=\"text-align: center;\" width=\"76\">42<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN483<\/td>\n<td style=\"text-align: center;\" width=\"124\">22<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">360X160X305<\/td>\n<td style=\"text-align: center;\" width=\"76\">44<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN507<\/td>\n<td style=\"text-align: center;\" width=\"124\">25<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">360X170X305<\/td>\n<td style=\"text-align: center;\" width=\"76\">49<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN547<\/td>\n<td style=\"text-align: center;\" width=\"124\">30<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">360X180X305<\/td>\n<td style=\"text-align: center;\" width=\"76\">55<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN627<\/td>\n<td style=\"text-align: center;\" width=\"124\">40<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">420X190X355<\/td>\n<td style=\"text-align: center;\" width=\"76\">73<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN707<\/td>\n<td style=\"text-align: center;\" width=\"124\">50<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">420X200X355<\/td>\n<td style=\"text-align: center;\" width=\"76\">85<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN727<\/td>\n<td style=\"text-align: center;\" width=\"124\">60<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">420X210X355<\/td>\n<td style=\"text-align: center;\" width=\"76\">98<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN747<\/td>\n<td style=\"text-align: center;\" width=\"124\">70<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">420X240X355<\/td>\n<td style=\"text-align: center;\" width=\"76\">108<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN767<\/td>\n<td style=\"text-align: center;\" width=\"124\">80<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">480X234X405<\/td>\n<td style=\"text-align: center;\" width=\"76\">117<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN787<\/td>\n<td style=\"text-align: center;\" width=\"124\">90<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">480X244X405<\/td>\n<td style=\"text-align: center;\" width=\"76\">129<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN807<\/td>\n<td style=\"text-align: center;\" width=\"124\">100<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">480X254X405<\/td>\n<td style=\"text-align: center;\" width=\"76\">142<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN811<\/td>\n<td style=\"text-align: center;\" width=\"124\">120<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">480X274X405<\/td>\n<td style=\"text-align: center;\" width=\"76\">163<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN817<\/td>\n<td style=\"text-align: center;\" width=\"124\">150<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">600X270X505<\/td>\n<td style=\"text-align: center;\" width=\"76\">201<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN822<\/td>\n<td style=\"text-align: center;\" width=\"124\">175<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">600X290X505<\/td>\n<td style=\"text-align: center;\" width=\"76\">240<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"117\">ATTGN827<\/td>\n<td style=\"text-align: center;\" width=\"124\">200<\/td>\n<td style=\"text-align: center;\" width=\"180\">400+N<\/td>\n<td style=\"text-align: center;\" width=\"227\">600X320X505<\/td>\n<td style=\"text-align: center;\" width=\"76\">285<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width: 650px;\">\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-attgn1.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5065 aligncenter\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-attgn1.gif\" alt=\"sch\u00e9ma autotransformateur g\u00e9n\u00e9rateur de neutre\" width=\"79\" height=\"103\" \/><\/a><\/td>\n<td><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-attgn2.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5066 size-full\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-attgn2.gif\" alt=\"sch\u00e9ma autotransformateur g\u00e9n\u00e9rateur de neutre avec prise interm\u00e9diaire\" width=\"79\" height=\"102\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Autotransformateur g\u00e9n\u00e9rateur de neutre<\/td>\n<td style=\"text-align: center;\">Autotransformateur g\u00e9n\u00e9rateur de neutre avec prise interm\u00e9diaire<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Il convient de souligner une application importante en basse tension des r\u00e9actances en zig-zag, dont l&#8217;importance a cr\u00fb avec la diffusion des charges non lin\u00e9aires. Ces charges absorbent des courants non sinuso\u00efdaux pr\u00e9sentant un fort contenu harmonique. Ces \u00e9quipements (redresseurs, onduleurs, etc.) peuvent \u00eatre consid\u00e9r\u00e9s comme des g\u00e9n\u00e9rateurs de courants harmoniques provoquant des chutes sur les imp\u00e9dances du r\u00e9seau et d\u00e9formant sa tension. Le ph\u00e9nom\u00e8ne est d&#8217;autant plus sensible que la puissance de la charge d\u00e9formante se rapproche de celle du transformateur, et peut devenir intol\u00e9rable lorsque le g\u00e9n\u00e9rateur n&#8217;est pas le r\u00e9seau public mais un groupe \u00e9lectrog\u00e8ne.<\/p>\n<p>Il faut alors faire en sorte que les imp\u00e9dances rencontr\u00e9es par ces courants soient les plus faibles possibles. Les courants de troisi\u00e8me harmonique (fr\u00e9quence triple de la fondamentale) et ses multiples constituent, dans un syst\u00e8me triphas\u00e9, des composantes homopolaires o\u00f9 l&#8217;imp\u00e9dance concern\u00e9e est celle de la s\u00e9quence z\u00e9ro. Les r\u00e9actances en zig-zag poss\u00e8dent des imp\u00e9dances de s\u00e9quence z\u00e9ro tr\u00e8s basses, ce qui emp\u00eache ou att\u00e9nue l&#8217;apparition des harmoniques de tension correspondants. Elles fonctionnent ainsi comme des compensateurs d&#8217;harmoniques pour les charges non lin\u00e9aires. Elles doivent \u00eatre install\u00e9es \u00e0 proximit\u00e9 imm\u00e9diate de la charge polluante.<\/p>\n<figure id=\"attachment_5064\" aria-describedby=\"caption-attachment-5064\" style=\"width: 299px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-attgn3.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5064\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-attgn3.gif\" alt=\"sch\u00e9ma de branchement autotransformateur g\u00e9n\u00e9rateur de neutre\" width=\"299\" height=\"250\" \/><\/a><figcaption id=\"caption-attachment-5064\" class=\"wp-caption-text\">sch\u00e9ma de branchement autotransformateur g\u00e9n\u00e9rateur de neutre<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>AUTOTRANSFORMATEURS TRIPHAS\u00c9S G\u00c9N\u00c9RATEURS DE NEUTRE de 3 \u00e0 200kVA Plusieurs r\u00e9seaux \u00e9lectriques dans le monde ne disposent pas de Neutre ; en pr\u00e9sence de charges monophas\u00e9es, il est n\u00e9cessaire de g\u00e9n\u00e9rer un Neutre stable, m\u00eame avec des charges d\u00e9s\u00e9quilibr\u00e9es. Lorsqu&#8217;il n&#8217;est pas indispensable de s\u00e9parer les charges du r\u00e9seau par un transformateur d&#8217;isolement Dyn11, on [&hellip;]<\/p>\n","protected":false},"featured_media":17764,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[977],"product_tag":[1163,1101,777,776,1152],"class_list":["post-17762","product","type-product","status-publish","has-post-thumbnail","product_cat-autotransformateurs","product_tag-isolamento","product_tag-monophase","product_tag-transformateur-3","product_tag-transformateur","product_tag-transformateurs-de-securite","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author","","first","instock","featured","taxable","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ATT-GN - AUTOTRANSFORMATEURS TRIPHAS\u00c9S G\u00c9N\u00c9RATEURS DE NEUTRE DE 3 \u00c0 200KVA - K-factor<\/title>\n<meta name=\"description\" content=\"Autotransformateurs g\u00e9n\u00e9rateurs de neutre ATT-GN (3-200kVA). 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