{"id":77386,"date":"2026-07-08T12:18:18","date_gmt":"2026-07-08T10:18:18","guid":{"rendered":"https:\/\/circutor.com\/?p=77386"},"modified":"2026-07-08T12:32:55","modified_gmt":"2026-07-08T10:32:55","slug":"quan-cal-installar-proteccio-diferencial-de-tipus-b","status":"publish","type":"post","link":"https:\/\/circutor.com\/ca\/articles\/quan-cal-installar-proteccio-diferencial-de-tipus-b\/","title":{"rendered":"Quan cal instal\u00b7lar protecci\u00f3 diferencial de tipus B"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text css=\u00bb.vc_custom_1783505925238{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]<\/p>\n

La incorporaci\u00f3 de sistemes de control electr\u00f2nics ha optimitzat la gesti\u00f3 energ\u00e8tica i l\u2019automatitzaci\u00f3 dels processos productius. Aquestes tecnologies, basades en la conversi\u00f3 de corrent altern en corrent continu, requereixen una protecci\u00f3 adequada que garanteixi la seguretat de les persones i de les instal\u00b7lacions davant possibles fallades tant en la part de corrent altern com en la de corrent continu del sistema.<\/h4>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row gap=\u00bb10″ equal_height=\u00bbyes\u00bb][vc_column width=\u00bb1\/2″][vc_column_text css=\u00bb.vc_custom_1783506028817{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]Aix\u00f2 afecta equips habituals com ara variadors de velocitat, inversors, sistemes d’alimentaci\u00f3 ininterrompuda, punts de rec\u00e0rrega de vehicles el\u00e8ctrics, equips d’ofim\u00e0tica o sistemes LED<\/strong> presents tant en aplicacions industrials com en l\u2019\u00fas quotidi\u00e0.[\/vc_column_text][\/vc_column][vc_column width=\u00bb1\/2″][vc_column_text css=\u00bb.vc_custom_1783506081106{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]Tanmateix, els dispositius de protecci\u00f3 diferencial de tipus A, AC o F<\/strong> no detecten les fuites de corrent continu. Aix\u00f2 pot comprometre la continu\u00eftat del servei, provocar incendis o fins i tot posar en perill la vida de les persones.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=\u00bbstretch_row\u00bb css=\u00bb.vc_custom_1783082102930{background: #92CDE0 url(https:\/\/circutor.com\/wp-content\/uploads\/2026\/07\/art-protect-B-fons-blau.jpg?id=76819) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}\u00bb][vc_column][vc_column_text css=\u00bb.vc_custom_1783506101024{margin-top: 20px !important;margin-bottom: 20px !important;padding-top: 20px !important;padding-bottom: 20px !important;}\u00bb]<\/p>\n

Per aquest motiu, \u00e9s tan important utilitzar protecci\u00f3 diferencial de tipus B en instal\u00b7lacions on puguin apar\u00e8ixer fuites de corrent altern, corrent polsant, d\u2019alta freq\u00fc\u00e8ncia o corrent continu.<\/span><\/em><\/h4>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=\u00bb.vc_custom_1783070047350{margin-top: 20px !important;}\u00bb][vc_column][vc_column_text css=\u00bb.vc_custom_1783506144552{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]<\/p>\n

Quin criteri cal seguir per instal\u00b7lar diferencials en s\u00e8rie<\/h2>\n

Quan instal\u00b7lem diferencials en s\u00e8rie, aig\u00fces amunt de la c\u00e0rrega, la selecci\u00f3 correcta del dispositiu no ha de tenir en compte \u00fanicament el tipus de c\u00e0rrega. Tamb\u00e9 cal considerar altres aspectes que permetin una coordinaci\u00f3 adequada del sistema de proteccions.<\/p>\n

Per garantir la selectivitat vertical<\/strong>, sempre s\u2019han de complir tres condicions: amperim\u00e8trica, cronom\u00e8trica i de tipus<\/strong>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row gap=\u00bb10″ equal_height=\u00bbyes\u00bb][vc_column width=\u00bb1\/3″ css=\u00bb.vc_custom_1783332114232{background-color: #FFEAEA !important;border-radius: 15px !important;}\u00bb][vc_column_text css=\u00bb.vc_custom_1783506203981{margin-bottom: 20px !important;padding-top: 20px !important;padding-right: 20px !important;padding-bottom: 20px !important;padding-left: 20px !important;}\u00bb]\"Selectividad<\/p>\n

Selectivitat amperim\u00e8trica<\/h3>\n

La sensibilitat d\u2019un interruptor diferencial<\/strong> sempre ha de ser superior a la del diferencial situat aig\u00fces avall. D\u2019aquesta manera, en cas que es produeixi una fuita, actuar\u00e0 primer el dispositiu m\u00e9s proper al punt de la instal\u00b7laci\u00f3 afectat, evitant que es desconnecti tota la l\u00ednia.<\/p>\n

Per assegurar aquesta selectivitat, es recomana ajustar la sensibilitat<\/strong> a un valor aproximadament tres vegades superior<\/strong> al del diferencial inferior.[\/vc_column_text][\/vc_column][vc_column width=\u00bb1\/3″ css=\u00bb.vc_custom_1783332148572{background-color: #FFEAEA !important;border-radius: 15px !important;}\u00bb][vc_column_text css=\u00bb.vc_custom_1783506259017{margin-bottom: 20px !important;padding-top: 20px !important;padding-right: 20px !important;padding-bottom: 20px !important;padding-left: 20px !important;}\u00bb]\"Selectividad<\/p>\n

Selectivitat cronom\u00e8trica<\/h3>\n

De la mateixa manera que passa amb la sensibilitat, els temps de d\u2019actuaci\u00f3<\/strong> dels interruptors diferencials tamb\u00e9 han de ser superiors<\/strong> en el dispositiu situat aig\u00fces amunt.<\/p>\n

Aix\u00f2 garanteix que, davant una fuita, actu\u00ef primer el diferencial m\u00e9s proper al punt de fallada. Per mantenir la selectivitat cronom\u00e8trica<\/strong>, es recomana ajustar el retard a un valor aproximadament dues vegades superior<\/strong> al que est\u00e0 configurat en el diferencial inferior.[\/vc_column_text][\/vc_column][vc_column width=\u00bb1\/3″ css=\u00bb.vc_custom_1783332159043{background-color: #FFEAEA !important;border-radius: 15px !important;}\u00bb][vc_column_text css=\u00bb.vc_custom_1783506292616{margin-bottom: 20px !important;padding-top: 20px !important;padding-right: 20px !important;padding-bottom: 20px !important;padding-left: 20px !important;}\u00bb]\"Selectividad<\/p>\n

Selectivitat pel tipus de protecci\u00f3 diferencial<\/h3>\n

Un altre aspecte important \u00e9s la selecci\u00f3 correcta del tipus de protecci\u00f3 diferencial<\/strong>. Aquest ha de ser sempre del mateix tipus o d\u2019un tipus superior al que hi ha instal\u00b7lat aig\u00fces avall.<\/p>\n

D\u2019aquesta manera, es garanteix la continu\u00eftat del servei i s\u2019eviten actuacions intempestives que puguin afectar tota la instal\u00b7laci\u00f3.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=\u00bb76746″ img_size=\u00bblarge\u00bb alignment=\u00bbcenter\u00bb css=\u00bb.vc_custom_1783330363629{margin-top: 40px !important;margin-bottom: 40px !important;padding-right: 40px !important;padding-left: 40px !important;}\u00bb][\/vc_column][\/vc_row][vc_row css=\u00bb.vc_custom_1783068982335{padding-top: 20px !important;padding-right: 20px !important;padding-bottom: 20px !important;padding-left: 20px !important;background-color: #F3F4F5 !important;border-radius: 15px !important;}\u00bb][vc_column][vc_column_text css=\u00bb.vc_custom_1783506329114{margin-top: 20px !important;margin-bottom: 40px !important;}\u00bb]\"Soluciones<\/p>\n

Solucions Circutor de protecci\u00f3 diferencial de tipus B<\/h2>\n

Davant la necessitat creixent de protegir aquest tipus de c\u00e0rregues, Circutor<\/strong> disposa d\u2019un ampli ventall de solucions de protecci\u00f3 diferencial de tipus B<\/strong>.[\/vc_column_text][vc_row_inner content_placement=\u00bbmiddle\u00bb css=\u00bb.vc_custom_1783330479125{margin-top: 20px !important;border-top-width: 3px !important;border-top-color: #FFFFFF !important;border-top-style: solid !important;}\u00bb][vc_column_inner][vc_column_text css=\u00bb.vc_custom_1783506429028{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]<\/p>\n

RGU-100B<\/h3>\n

L\u2019RGU-100B<\/strong><\/a> \u00e9s un rel\u00e9 diferencial associat a transformadors de la gamma WGB<\/strong><\/a> i amb comunicacions RS-485 mitjan\u00e7ant Modbus RTU, amb di\u00e0metres interiors de fins a 140 mm, que permeten protegir c\u00e0rregues de fins a 630 A.<\/p>\n

\"RGU-100B\"\"WGB\"<\/p>\n

L\u2019equip \u00e9s configurable amb sensibilitats a partir de 30 mA i disposa d\u2019actuaci\u00f3 instant\u00e0nia o programable en el temps. A m\u00e9s, mostra a la pantalla el nivell de fuita en el moment de l\u2019actuaci\u00f3, fet que facilita l\u2019ajust prec\u00eds de la sensibilitat segons les necessitats de la instal\u00b7laci\u00f3.<\/p>\n

Aix\u00ed mateix, registra el nivell de fuita en CA, en CC o el total combinat CA+CC, cosa que ajuda a identificar f\u00e0cilment l\u2019origen de l\u2019anomalia.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner content_placement=\u00bbmiddle\u00bb css=\u00bb.vc_custom_1783330489293{margin-top: 20px !important;border-top-width: 3px !important;border-top-color: #FFFFFF !important;border-top-style: solid !important;}\u00bb][vc_column_inner][vc_column_text css=\u00bb.vc_custom_1783506550333{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]<\/p>\n

RGU-110B<\/h3>\n

L\u2019RGU-110B<\/strong><\/a> \u00e9s un rel\u00e9 electr\u00f2nic de protecci\u00f3 diferencial de tipus B dissenyat per detectar i gestionar corrents de fuita en instal\u00b7lacions el\u00e8ctriques modernes.<\/p>\n

\"RGU-110B\"\"WB\"<\/p>\n

Juntament amb els transformadors WB<\/strong><\/a>, protegeix i monitoritza totes aquelles instal\u00b7lacions el\u00e8ctriques en qu\u00e8, pel tipus de c\u00e0rrega, la legislaci\u00f3 vigent o els requisits del fabricant, \u00e9s necessari instal\u00b7lar protecci\u00f3 diferencial de tipus B.<\/p>\n

La s\u00e8rie RGU-110B<\/strong><\/a> disposa de transformadors per protegir c\u00e0rregues de fins a 4.000 A, fet que permet una coordinaci\u00f3 correcta del tipus de protecci\u00f3 en subquadres o quadres generals, aix\u00ed com la protecci\u00f3 de grans c\u00e0rregues, com els variadors de velocitat.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner content_placement=\u00bbmiddle\u00bb css=\u00bb.vc_custom_1783330501285{margin-top: 20px !important;border-top-width: 3px !important;border-top-color: #FFFFFF !important;border-top-style: solid !important;}\u00bb][vc_column_inner][vc_column_text css=\u00bb.vc_custom_1783506658282{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb]<\/p>\n

CBS-400B<\/h3>\n

El CBS-400B<\/strong><\/a> \u00e9s un rel\u00e9 diferencial associat a transformadors de la gamma WGB<\/strong><\/a> i amb comunicacions RS-485 mitjan\u00e7ant Modbus RTU, amb di\u00e0metres interiors de fins a 140 mm, que permeten protegir c\u00e0rregues de fins a 630 A.<\/p>\n

\"CBS-400B\"\"WGB\"<\/p>\n

L\u2019equip \u00e9s configurable amb sensibilitats a partir de 30 mA i disposa de quatre canals per protegir quatre circuits totalment independents en nom\u00e9s tres m\u00f2duls de carril DIN. Tamb\u00e9 disposa d\u2019actuaci\u00f3 instant\u00e0nia o programable en el temps.<\/p>\n

Igual que l\u2019RGU-100B<\/strong><\/a>, permet visualitzar a la pantalla el nivell de fuita en CA, en CC o el total combinat CA+CC.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css=\u00bb.vc_custom_1782997223423{margin-top: 40px !important;margin-bottom: 40px !important;}\u00bb][vc_column][vc_column_text css=\u00bb\u00bb]\"Revisa<\/p>\n

Reviseu sempre els manuals dels equips<\/h2>\n

\u00c9s recomanable revisar detingudament els manuals d\u2019equips com ara variadors trif\u00e0sics, inversors, punts de rec\u00e0rrega o sistemes d\u2019alimentaci\u00f3 ininterrompuda.<\/p>\n

Els fabricants d\u2019aquesta mena d\u2019equips amb conversi\u00f3 AC\/DC especifiquen que l\u2019\u00fanica manera de garantir una protecci\u00f3 adequada \u00e9s mitjan\u00e7ant l\u2019\u00fas de diferencials de tipus B<\/strong><\/a>.<\/p>\n

D\u2019aquesta manera, s\u2019assegura el funcionament correcte del sistema, es prevenen possibles accidents i es mant\u00e9 la continu\u00eftat del subministrament el\u00e8ctric.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row][vc_column][vc_column_text css=\u00bb.vc_custom_1783505925238{margin-top: 20px !important;margin-bottom: 20px !important;}\u00bb] La incorporaci\u00f3 de sistemes de control electr\u00f2nics ha optimitzat la gesti\u00f3 energ\u00e8tica i l\u2019automatitzaci\u00f3 dels processos productius. Aquestes tecnologies, basades en la conversi\u00f3 de corrent altern en corrent continu, requereixen una protecci\u00f3 adequada que garanteixi la seguretat de les persones i de les instal\u00b7lacions davant possibles fallades tant en […]<\/p>\n","protected":false},"author":7,"featured_media":76762,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[3710],"tags":[3824,3730,3722],"class_list":["post-77386","post","type-post","status-publish","format-standard","hentry","category-articles","tag-eficiencia-energetica-ca","tag-proteccio-electrica","tag-qualitat-de-xarxa"],"acf":[],"yoast_head":"\nQuan cal instal\u00b7lar protecci\u00f3 diferencial de tipus B - CIRCUTOR<\/title>\n<meta name=\"description\" content=\"Quan cal instal\u00b7lar protecci\u00f3 diferencial de tipus B\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/circutor.com\/ca\/articles\/quan-cal-installar-proteccio-diferencial-de-tipus-b\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quan cal instal\u00b7lar protecci\u00f3 diferencial de tipus B - 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