{"id":283,"date":"2026-08-22T02:34:13","date_gmt":"2026-08-21T18:34:13","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=283"},"modified":"2026-08-29T23:43:39","modified_gmt":"2026-08-29T15:43:39","slug":"box-type-substation-the-compact-energy-hub-in-the-power-system","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/fr\/news\/box-type-substation-the-compact-energy-hub-in-the-power-system\/","title":{"rendered":"Sous-station de type bo\u00eete \u2014\u2014 Le \u201cHub\u201d \u00c9nerg\u00e9tique Compact dans le Syst\u00e8me \u00c9lectrique"},"content":{"rendered":"<p>Dans un parc industriel en pleine expansion pr\u00e8s de Ho Chi Minh-Ville, un entrepreneur organise le c\u00e2blage de 50 usines dans un d\u00e9lai qui ne permet pas de travaux civils d'un an. Au lieu de construire une sous-station en b\u00e9ton classique, l'utilitaire utilise une sous-station conteneur, qui se compose d'un module compact pr\u00e9assembl\u00e9 en usine, livr\u00e9 sur un camion, plac\u00e9 sur la dalle en b\u00e9ton avant midi, et mis en service d'ici la fin de la semaine. Apr\u00e8s deux ans, lorsque une usine textile doit doubler sa capacit\u00e9 de 800 \u00e0 1600 kVA, l'utilitaire n'a qu'\u00e0 \u00e9changer les conteneurs et retester les fils pour terminer ce travail en une seule journ\u00e9e.<\/p>\n<p>Les sous-stations conteneurs, qui sont disponibles dans diff\u00e9rentes conceptions et configurations, ont \u00e9merg\u00e9 en tant que centres \u00e9nerg\u00e9tiques compacts dans les syst\u00e8mes d'alimentation \u00e9lectrique modernes et ont trouv\u00e9 de larges applications dans les zones urbaines, les sites industriels, les centrales renouvelables et les projets d'\u00e9lectrification rurale.<\/p>\n<blockquote><p>Pour r\u00e9sumer : Une sous-station de type bo\u00eete est connue comme une sous-station pr\u00e9assembl\u00e9e ou compacte et est un type de sous-station assembl\u00e9e. Elle dispose d'un transformateur (50 \u00e0 2 500 kVA), d'un \u00e9quipement de commutation MV (RMU ou disjoncteur, 12 \u00e0 36 kV), d'un \u00e9quipement de commutation LV, d'appareils de mesure et de syst\u00e8mes auxiliaires dans un seul enclos certifi\u00e9 selon la norme IEC 62271-202. Elle n\u00e9cessite un court d\u00e9lai de livraison et d'installation ; par cons\u00e9quent, elle est tr\u00e8s appr\u00e9ci\u00e9e en tant que centre \u00e9nerg\u00e9tique compact.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-284\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Box-Type-Substation-The-Compact-Energy-Hub-In-The-Power-System.webp\" alt=\"Box Type Substation The Compact Energy Hub In The Power System\" width=\"1448\" height=\"1086\" \/><\/p>\n<hr \/>\n<h2 id=\"what\">Qu'est-ce qu'une sous-station de type bo\u00eete ?<\/h2>\n<p>Une sous-station de type bo\u00eete est une unit\u00e9 tout-en-un qui est fabriqu\u00e9e en usine et vendue pour remplir la fonction de sous-station de distribution. Elle se caract\u00e9rise par un haut niveau d'int\u00e9gration de tous les \u00e9l\u00e9ments tels que le transformateur, l'\u00e9quipement de commutation \u00e0 moyenne tension, ainsi que l'\u00e9quipement de commutation \u00e0 basse tension, les relais de protection, les \u00e9quipements de mesure et d'autres sous-syst\u00e8mes.<\/p>\n<p>Le nom vient de l'enclos, qui est fabriqu\u00e9 en acier ou en acier inoxydable. Les dimensions sont \u00e9galement d\u00e9finies comme \u00e9tant de 2,4 \u00e0 3,0 m de large et de 4 \u00e0 12 m de long.<\/p>\n<table>\n<thead>\n<tr>\n<th>Caract\u00e9ristique<\/th>\n<th>Sous-station de type bo\u00eete<\/th>\n<th>Sous-station conventionnelle<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u00e2timent<\/td>\n<td>Enclos fabriqu\u00e9 en usine<\/td>\n<td>Brique\/b\u00e9ton construit sur site<\/td>\n<\/tr>\n<tr>\n<td>Temps d'installation<\/td>\n<td>2 \u00e0 5 jours<\/td>\n<td>4 \u00e0 12 semaines<\/td>\n<\/tr>\n<tr>\n<td>Test<\/td>\n<td>Unit\u00e9 compl\u00e8te test\u00e9e en usine<\/td>\n<td>Assembl\u00e9e sur site, partiellement non test\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>Relocalisation<\/td>\n<td>Oui \u2014 soulever et d\u00e9placer<\/td>\n<td>Non<\/td>\n<\/tr>\n<tr>\n<td>Empreinte au sol<\/td>\n<td>Petite, compacte<\/td>\n<td>Grande, avec routes d'acc\u00e8s<\/td>\n<\/tr>\n<tr>\n<td>Co\u00fbt du capital<\/td>\n<td>Co\u00fbts globaux inf\u00e9rieurs<\/td>\n<td>Travaux civils plus \u00e9lev\u00e9s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Dans le cas des utilitaires et des d\u00e9veloppeurs, la sous-station de type bo\u00eete n'est pas simplement une autre technique de construction. Au contraire, c'est une nouvelle fa\u00e7on de livrer le projet, permettant de retirer le contr\u00f4le de qualit\u00e9 du site de construction et de le r\u00e9aliser plut\u00f4t en usine.<\/p>\n<h2 id=\"role\">Pourquoi c'est le centre \u00e9nerg\u00e9tique compact<\/h2>\n<p>Les sous-stations de type bo\u00eete sont appel\u00e9es centres \u00e9nerg\u00e9tiques compacts puisque toutes les fonctions d'une station de distribution sont r\u00e9alis\u00e9es dans des centres \u00e9lectriques compacts sur quelques dizaines de m\u00e8tres carr\u00e9s. Les quatre facteurs qui contribuent \u00e0 leur efficacit\u00e9 dans les syst\u00e8mes \u00e9lectriques d'aujourd'hui sont :<\/p>\n<ul>\n<li>Timing : L'\u00e9lectrification d'une machine de type bo\u00eete peut prendre des jours et non des mois, ce qui est critique pour les zones industrielles, l'acc\u00e9l\u00e9ration des nouveaux d\u00e9veloppements r\u00e9sidentiels et la r\u00e9cup\u00e9ration \u00e9lectrique apr\u00e8s une catastrophe.<\/li>\n<li>Co\u00fbt : L'exclusion des travaux civils et la coordination de plusieurs entrepreneurs r\u00e9duisent g\u00e9n\u00e9ralement le co\u00fbt total install\u00e9 de 20 \u00e0 40 % par rapport \u00e0 des solutions de capacit\u00e9 similaire.<\/li>\n<li>Flexibilit\u00e9 : Ces machines peuvent \u00eatre d\u00e9plac\u00e9es et redimensionn\u00e9es en fonction des changements de sch\u00e9ma de charge, ce que les b\u00e2timents fixes ne permettent pas.<\/li>\n<li>Qualit\u00e9 d'usine : Les tests de type avec enveloppe compl\u00e8te (selon IEC 62271-2020) impliquent que les performances de l'unit\u00e9 en ce qui concerne la surchauffe, les courts-circuits et les propri\u00e9t\u00e9s di\u00e9lectriques ont \u00e9t\u00e9 test\u00e9es au moment o\u00f9 la machine arrive sur le site.<\/li>\n<\/ul>\n<p>En cons\u00e9quence, la capacit\u00e9 de distribution moderne est essentiellement repr\u00e9sent\u00e9e par des sous-stations de type box dans le monde entier.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-285\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/Structure-and-Internal-Layout.webp\" alt=\"Structure et agencement interne\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"structure\">Structure et agencement interne<\/h2>\n<p>Les sous-stations de type box normales ont trois ou quatre compartiments pour effectuer certaines fonctions, s\u00e9par\u00e9s par des murs et organis\u00e9s de telle mani\u00e8re que chaque compartiment a sa propre porte et peut \u00eatre accessible de l'ext\u00e9rieur \u00e9galement :<\/p>\n<ul>\n<li>Le compartiment MV, y compris l'unit\u00e9 de r\u00e9seau en anneau (RMU) ou le mat\u00e9riel de commutation de disjoncteur o\u00f9 se trouvent les entr\u00e9es de c\u00e2ble ; toutes les unit\u00e9s de fonctionnement n\u00e9cessaires, y compris la poign\u00e9e de fonctionnement, les verrouillages et les indicateurs, sont accessibles depuis le c\u00f4t\u00e9 avant du compartiment.<\/li>\n<li>Le compartiment transformateur qui contient un transformateur ainsi qu'un syst\u00e8me de confinement d'huile, un syst\u00e8me de ventilation forc\u00e9e et des alarmes de temp\u00e9rature ; la porte est verrouill\u00e9e avec la d\u00e9connexion MV si cela est n\u00e9cessaire.<\/li>\n<li>Le compartiment LV, qui contient le tableau de distribution LV, le comptage et le banc de condensateurs, si n\u00e9cessaire ; tous les feeders sortants se terminent dans ce compartiment.<\/li>\n<li>La zone auxiliaire, qui comprend l'\u00e9clairage, le chauffage et le c\u00e2blage de contr\u00f4le r\u00e9partis dans les compartiments.<\/li>\n<\/ul>\n<p>Les d\u00e9tails de construction qui contribuent \u00e0 la fiabilit\u00e9 \u00e0 long terme sont les suivants : un d\u00e9bord de toit et un canal de goutte, un joint de porte IP54, des grilles de ventilation qui prot\u00e8gent contre l'op\u00e9ration des insectes et de la poussi\u00e8re, et une base galvanis\u00e9e \u00e0 chaud sur\u00e9lev\u00e9e de 500 \u00e0 800 mm au-dessus de la surface du sol. Ces d\u00e9tails permettent de d\u00e9terminer si l'unit\u00e9 ne fuit pas m\u00eame quinze ans plus tard ou commence \u00e0 fuir apr\u00e8s la deuxi\u00e8me ann\u00e9e d'exploitation.<\/p>\n<h2 id=\"types\">Types et configurations<\/h2>\n<p>Les sous-stations de type box sont class\u00e9es par arrangement de montage, mat\u00e9riau d'enveloppe et type de mat\u00e9riel de commutation :<\/p>\n<table>\n<thead>\n<tr>\n<th>Classification<\/th>\n<th>Variantes<\/th>\n<th>Application typique<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Montage<\/td>\n<td>Mont\u00e9 au sol \/ mont\u00e9 sur socle<\/td>\n<td>Distribution urbaine, industrielle et rurale<\/td>\n<\/tr>\n<tr>\n<td>Mat\u00e9riau d'enveloppe<\/td>\n<td>Acier au carbone (peint), acier inoxydable, GRP\/composite<\/td>\n<td>Les sites c\u00f4tiers\/corrosifs utilisent de l'acier inoxydable ou composite<\/td>\n<\/tr>\n<tr>\n<td>Appareillage MV<\/td>\n<td>RMU (SF6 ou isol\u00e9 solide), interrupteur \u00e0 coupure de charge, disjoncteur \u00e0 vide<\/td>\n<td>RMU pour r\u00e9seaux en boucle\/anneau ; disjoncteur pour grandes alimentations industrielles<\/td>\n<\/tr>\n<tr>\n<td>Transformateur<\/td>\n<td>Immerg\u00e9 dans l'huile ou de type sec<\/td>\n<td>Type sec pour int\u00e9rieur\/sensible au feu ; huile pour usage g\u00e9n\u00e9ral<\/td>\n<\/tr>\n<tr>\n<td>Configuration<\/td>\n<td>Unit\u00e9 unique, tandem (transformateur + sections de mat\u00e9riel de commutation), mini sous-station<\/td>\n<td>Mini units for rural and pole-mount scale loads<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>In North America, the analogous family is the pad-mounted transformer substation, which is governed by IEEE C57.12.27 and generally employs dead-front technology for safety. Buyers must align their product with the necessary standards depending on the region of use; IEC 62271-202 for most of the exporting markets, IEEE C57.12 for the USA and parts of Latin America.<\/p>\n<h2 id=\"compare\">Box-Type vs. Conventional Substation<\/h2>\n<p>Choosing between a box-type and a conventional substation comes down to project constraints. The decision table:<\/p>\n<table>\n<thead>\n<tr>\n<th>Decision Factor<\/th>\n<th>Choose Box-Type When<\/th>\n<th>Choose Conventional When<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Schedule<\/td>\n<td>Grid connection needed within weeks<\/td>\n<td>Construction schedule is flexible<\/td>\n<\/tr>\n<tr>\n<td>Land<\/td>\n<td>Footprint limited, land expensive<\/td>\n<td>Land is available and cheap<\/td>\n<\/tr>\n<tr>\n<td>Growth uncertainty<\/td>\n<td>Load may grow or relocate<\/td>\n<td>Load is certain and long-term<\/td>\n<\/tr>\n<tr>\n<td>Environment<\/td>\n<td>Coastal, corrosive, flood-prone areas<\/td>\n<td>Benign inland site<\/td>\n<\/tr>\n<tr>\n<td>Maintenance culture<\/td>\n<td>Remote sites, limited local skills<\/td>\n<td>Well-staffed utility workshop<\/td>\n<\/tr>\n<tr>\n<td>Capital availability<\/td>\n<td>Total installed cost is the constraint<\/td>\n<td>Long-term operational cost dominates<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>In reality, the traditional way still prevails in transmission-connected substations and very large distribution centers but more and more new urban and renewable distribution use box-type solutions. The trend towards prefabrication has been witnessing an upward trend for more than a decade.<\/p>\n<h2 id=\"applications\">Key Application Areas<\/h2>\n<p>There are four main application sectors for box-type substations.<\/p>\n<ul>\n<li>Urban and commercial distribution. These substations ensure the operation of residential districts, commercial centers, office high-rise buildings, and street grids. Quick installation and compact design of these substations make them ideal for urban areas.<\/li>\n<li>Industrial parks. Here each factory or group of factories receives one substation. The capacity of the box-type substation can be increased from 400 kVA to 1,600 kVA.<\/li>\n<li>Plants generating renewable energy. Solar plants normally employ a lot of box-type substations to keep inverters in operation. Wind power plants implement this technology to connect electrical turbines to grid lines.<\/li>\n<li>Rural electrification. In rural areas, box-type substations cover electricity demand from villages and agricultural businesses at rather low costs.<\/li>\n<\/ul>\n<p>In all the cases, the substation performs the same essential function of electric energy hub: it receives energy supply, processes it in a required way, secures the supply in the grid, and provides the appropriate electricity consumption \u2014 all inside the substation.<\/p>\n<h2 id=\"standards\">Normes et tests<\/h2>\n<p>The standards that define box-type substation quality and safety:<\/p>\n<table>\n<thead>\n<tr>\n<th>Norme<\/th>\n<th>Port\u00e9e<\/th>\n<th>Key Requirement for Buyers<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>IEC 62271-202<\/td>\n<td>Postes de transformation pr\u00e9fabriqu\u00e9s<\/td>\n<td>Tests de type de l'unit\u00e9 compl\u00e8te : \u00e9l\u00e9vation de temp\u00e9rature, court-circuit, di\u00e9lectrique<\/td>\n<\/tr>\n<tr>\n<td>IEC 60076<\/td>\n<td>Transformateurs de puissance<\/td>\n<td>Transformer rating, losses, routine\/type tests<\/td>\n<\/tr>\n<tr>\n<td>IEC 60529<\/td>\n<td>IP enclosure protection<\/td>\n<td>IP54 minimum for outdoor units; IP55 where water spray risk exists<\/td>\n<\/tr>\n<tr>\n<td>IEC 62271-200<\/td>\n<td>Appareillage de commutation m\u00e9tallique en MV<\/td>\n<td>RMU safety and test requirements<\/td>\n<\/tr>\n<tr>\n<td>IEEE C57.12.27<\/td>\n<td>Pad-mount equipment integrity (North America)<\/td>\n<td>Dead-front construction and tamper resistance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>One of the major tests done on an enclosure is the IEC 62271-202 temperature-rise test which ensures the transformer does not exceed insulation temperature limits while operating at full capacity. In other words, already in hot environments the actual performance of suppliers who run only tests on transformers without enclosures differs from that of suppliers who conduct tests with enclosures.<\/p>\n<h2 id=\"costs\">Co\u00fbts et fourchettes de prix<\/h2>\n<p>Indicative prices for complete box-type substations (RMU switchgear, oil-immersed transformer, LV panel) vary with rating, switchgear, loss class, and enclosure material:<\/p>\n<table>\n<thead>\n<tr>\n<th>Puissance<\/th>\n<th>Classe de tension<\/th>\n<th>Prix typique (USD)<\/th>\n<th>D\u00e9lai de livraison<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>400\u2013630 kVA<\/td>\n<td>10\u201335 kV<\/td>\n<td>$7 000\u2013$20 000<\/td>\n<td>6\u201312 semaines<\/td>\n<\/tr>\n<tr>\n<td>800\u20131,250 kVA<\/td>\n<td>10\u201335 kV<\/td>\n<td>$11,000\u2013$33,000<\/td>\n<td>8\u201314 semaines<\/td>\n<\/tr>\n<tr>\n<td>1,600\u20132,500 kVA<\/td>\n<td>10\u201335 kV<\/td>\n<td>$24,000\u2013$60,000<\/td>\n<td>10\u201318 weeks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Increase the prices by 15-30% for stainless steel enclosures, 10-20% for dry-type transformers, and add 800-3000 USD for additional features, which include metering and monitoring upgrades. Prices are given as FOB and are affected by many factors \u2014 specifications, brands, regions. Never forget to ask for a loss estimation when requesting price quotations.<\/p>\n<h2 id=\"brands\">Meilleures marques et comparaison des prix<\/h2>\n<p>Included in the box-type substation industry are the world\u2019s leading players in the electrical business along with the limited specialization in the field of manufacturing prefabricated units. The pricing data of the 1,000 kVA, 33\/0.4 kV sub-station incorporating RMU and LV panel is given in the table shown below.<\/p>\n<table>\n<thead>\n<tr>\n<th>Marque<\/th>\n<th>Pays<\/th>\n<th>Compact Substation Strengths<\/th>\n<th>Prix indicatif (USD)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Schneider Electric<\/td>\n<td>France<\/td>\n<td>RMU integration and global compact substation range<\/td>\n<td>$22,000\u2013$38,000<\/td>\n<\/tr>\n<tr>\n<td>Siemens<\/td>\n<td>Allemagne<\/td>\n<td>Digital options, integrated protection systems<\/td>\n<td>$23,000\u2013$40,000<\/td>\n<\/tr>\n<tr>\n<td>ABB<\/td>\n<td>Suisse<\/td>\n<td>Broad portfolio, strong utility references<\/td>\n<td>$22,000\u2013$39,000<\/td>\n<\/tr>\n<tr>\n<td>Eaton<\/td>\n<td>\u00c9tats-Unis<\/td>\n<td>Pad-mount and North American market strength<\/td>\n<td>$20,000\u2013$36,000<\/td>\n<\/tr>\n<tr>\n<td>ZPUE \/ AUSY (specialists)<\/td>\n<td>Europe<\/td>\n<td>Dedicated prefab substation engineering<\/td>\n<td>$22,000\u2013$45,000<\/td>\n<\/tr>\n<tr>\n<td>Jiangsu Subian Electric Power<\/td>\n<td>Chine<\/td>\n<td>IEC 62271-202 units, oil\/dry transformer options, OEM<\/td>\n<td>$11,000\u2013$33,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The multinational leaders provide safeguards for brands, ranging from mature poles of RMU product lines to service organizations worldwide; it is these factors that enable them to win the majority of bids where there are high requirements for insurance cover. Jiangsu Subian Electric Power ranks among the low-price tier, offering IEC 62271-202 compliant box-type substations with various options for transformers (oil-immersed\/dry), switchgear (RMU\/breaker), and enclosures (painted\/stainless\/composite) at about 40-55% of European prices. For companies engaged in utilizing compact substations in their operations, Subian with its combination of IEC certification, factory testing, export experience, and OEM customization capabilities is a highly competitive option compared to international market players.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-287\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/08\/How-to-Choose-the-Right-Unit-1.webp\" alt=\"Comment Choisir la Bonne Unit\u00e9\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2 id=\"howtochoose\">Comment Choisir la Bonne Unit\u00e9<\/h2>\n<ul>\n<li>Establish the load: currently kVA, expansion plans, and power factor &#8211; ensure that the peak load is between 60-80% of the transformer capacity.<\/li>\n<li>Verify the network\u2019s voltage and configuration type (loop, radial, dual-feed etc.) to pick RMU or switchgear.<\/li>\n<li>Decide on the enclosure material according to the environment: painted carbon steel for non-aggressive sites; stainless steel or composite material for corrosive\/coast sites.<\/li>\n<li>Determine the type of transformer according to the fire requirements: oil-insulated transformer for open air, dry transformer for indoor fire-sensitive sites.<\/li>\n<li>Ensure the IEC 62271-202 test for complete equipment type test is conducted.<\/li>\n<li>Add monitoring systems and alarms for unmanned sites.<\/li>\n<li>Compare quotations based on evaluation losses and confirm witness testing.<\/li>\n<\/ul>\n<h2 id=\"faq\">Questions Fr\u00e9quemment Pos\u00e9es<\/h2>\n<h3>How much does a box-type substation cost?<\/h3>\n<p>According to the size capacity of the unit, the price of the transformer varies significantly. For instance, a 400 to a 1000 kVA transformer can cost you anywhere between $7,000 to $33,000. Similarly, a transformer within the 1,600 to 2,500 kVA size can range from $24,000 to $60,000. Stainless steel as a material can cost either 15-30% of the total cost of the transformer, dry-type units ask for 10-20% surcharge while monitoring upgrades will cost you $800-$3,000.<\/p>\n<h3>Combien de temps prend l'installation ?<\/h3>\n<p>In general, the installation period of a concrete pad is around 2 to 5 days, including crane usage, installation, bolting down, cable termination, and commissioning process. On the contrary, a conventional substation requires four to twelve weeks of installation. Thanks to a factory testing approach, commissioning issues are rare, provided that the cables on site are laid and the pad has been built according to the supplier\u2019s recommendation.<\/p>\n<h3>Can a box-type substation be relocated or upsized later?<\/h3>\n<p>Indeed \u2014 this is one of its key benefits. A transformer can be transported, relocated, and powered up at a site, while a larger unit can be installed in the enclosure with a smaller transformer. This flexibility works well for industries and rapidly developing cities.<\/p>\n<h3>What is the difference between a box-type substation and a pad-mount transformer?<\/h3>\n<p>They are regional relatives. The box substation (IEC 62271-202) incorporates medium voltage switchgear, transformer, and low voltage switchgear into a single unit and is mostly found all over Europe, Asia, the Middle East, and Africa. The pad transformer (IEEE C57.12, North America), on the other hand, is traditionally a stand-alone unit with dead-front connections on the pad.<\/p>\n<h3>What tests should I require before accepting a box-type substation?<\/h3>\n<p>The transformer must undergo routine testing in accordance with IEC 60076, as well as switchgear testing and complete unit testing according to IEC 62271-202 when needed. This couple of things should include temperature rise tests when the case is provided, short-circuit resistance tests, and dielectric testing. If the order is for exported materials, make sure to request that factory test observation and inspection before shipment are both conducted.<\/p>\n<h2 id=\"references\">R\u00e9f\u00e9rences<\/h2>\n<ul>\n<li><a href=\"https:\/\/webstore.iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 62271-202 \u2014 High-voltage switchgear: Prefabricated transformer substations<\/a> \u2014 the governing standard for box-type substation design, safety, and type testing.<\/li>\n<li><a href=\"https:\/\/iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076 s\u00e9rie \u2014 Transformateurs de puissance<\/a> \u2014 the base standard for the transformers installed inside box-type units.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 62271-200 \u2014 MV metal-enclosed switchgear<\/a> \u2014 requirements for the RMU and breaker compartments.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60529 \u2014 Degrees of protection provided by enclosures (IP Code)<\/a> \u2014 defines IP54\/IP55 enclosure ratings.<\/li>\n<li><a href=\"https:\/\/standards.ieee.org\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.27 \u2014 Pad-mounted equipment enclosure integrity<\/a> \u2014 North American dead-front and tamper-resistance requirements.<\/li>\n<li><a href=\"https:\/\/www.nema.org\" rel=\"nofollow noopener\" target=\"_blank\">NEMA \u2014 pad-mount distribution transformer standards<\/a> \u2014 application and rating guidance for compact substation equipment in the Americas.<\/li>\n<li><a href=\"https:\/\/subian-electric.com\/fr\/\" rel=\"nofollow\">Jiangsu Subian Electric Power \u2014 official site<\/a> \u2014 manufacturer and exporter of IEC 62271-202 box-type substations.<\/li>\n<\/ul>\n<h2 id=\"conclusion\">Conclusion<\/h2>\n<p>The box-type substations are called an energy hub in modern power distribution because of their superior speed, economical value, adaptability, and good factory quality over traditional substation installations. The complete substation package including MV switchgear, transformer, LV switchgear, metering, and protection is delivered pre-assembled and ready for installation. The station can be installed in a matter of days and it can be moved or made larger once the power network expands.<\/p>\n<p>Key takeaways:<\/p>\n<ul>\n<li>Select the transformer size that can withstand a peak load of 60-80%; The choice of RMU or breaker comes with the considerations of the network.<\/li>\n<li>Select watertight construction (stainless steel or composite) made for either coastal or corrosive environment.<\/li>\n<li>This type of equipment needs to undergo IEC 62271-202 tests and not only transformer tests.<\/li>\n<li>When choosing some products, consider the economic losses. Don\u2019t hesitate to ask for the testimony of the factory test, if it is relevant for you.<\/li>\n<li>The most common suppliers are Schneider, Siemens, and ABB.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>At a rapidly-developing industrial park near Ho Chi Minh City, a contractor is arranging for the wiring of 50 factories in a span that does not allow for any year-long civil works. Instead of constructing a classical concrete substation, the utility uses a container substation, which consists of a factory-assembled compact module, which is delivered [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":284,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-283","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/posts\/283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/comments?post=283"}],"version-history":[{"count":2,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/posts\/283\/revisions"}],"predecessor-version":[{"id":11051,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/posts\/283\/revisions\/11051"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/media\/284"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/media?parent=283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/categories?post=283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/fr\/wp-json\/wp\/v2\/tags?post=283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}