{"id":1483,"date":"2026-09-10T03:05:21","date_gmt":"2026-09-10T03:05:21","guid":{"rendered":"https:\/\/prennox.com\/?post_type=product&#038;p=1483"},"modified":"2026-09-10T03:05:22","modified_gmt":"2026-09-10T03:05:22","slug":"hermetically-sealed-oil-immersed-distribution-transformer","status":"publish","type":"product","link":"https:\/\/prennox.com\/pt\/produto\/hermetically-sealed-oil-immersed-distribution-transformer\/","title":{"rendered":"Hermetically Sealed Oil-Immersed Distribution Transformer"},"content":{"rendered":"<h4>Vis\u00e3o geral do produto<\/h4>\n<p>A three-phase oil-immersed transformer for utility networks, industrial facilities and outdoor power distribution.<\/p>\n<p>The transformer uses a grain-oriented electrical steel core and a hermetically sealed corrugated tank. The corrugated tank accommodates changes in oil volume during operation while limiting contact between the insulating oil and the surrounding air.<\/p>\n<p>Core construction, winding arrangement and guaranteed losses are selected according to the required electrical performance and approved technical specification.<\/p>\n<p>&nbsp;<\/p>\n<h4>Key Features<\/h4>\n<ul>\n<li>Grain-oriented electrical steel core designed to meet the confirmed loss, excitation-current and sound-level requirements.<\/li>\n<li>Hermetically sealed corrugated tank without a conventional external conservator.<\/li>\n<li>Corrugated tank walls accommodate changes in oil volume during operation.<\/li>\n<li>Winding arrangement, tapping range and vector group configured for the required electrical system.<\/li>\n<li>Bushings, terminals, protection accessories and surface treatment selected for the installation environment.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>Reference Specifications<\/h4>\n<div style=\"overflow-x: auto; width: 100%;\">\n<table style=\"width: 100%; border-collapse: collapse;\">\n<tbody>\n<tr>\n<td><span style=\"color: #333333;\"><strong>Par\u00e2metro<\/strong><\/span><\/td>\n<td><span style=\"color: #333333;\"><strong>Available Configuration<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td>Type<\/td>\n<td>Three-phase oil-immersed distribution transformer<\/td>\n<\/tr>\n<tr>\n<td>Core material<\/td>\n<td>Grain-oriented electrical steel<\/td>\n<\/tr>\n<tr>\n<td>Core construction<\/td>\n<td>According to the approved design<\/td>\n<\/tr>\n<tr>\n<td>Reference capacity range<\/td>\n<td>(10 kV class) | 30\u20131250 kVA<\/td>\n<\/tr>\n<tr>\n<td>Rated voltage<\/td>\n<td>Specified for each project<\/td>\n<\/tr>\n<tr>\n<td>Frequency<\/td>\n<td>Project-specified<\/td>\n<\/tr>\n<tr>\n<td>GB series<\/td>\n<td>S13-M \/ S20-M \/ S22-M, where applicable<\/td>\n<\/tr>\n<tr>\n<td>Guaranteed losses<\/td>\n<td>Confirmed in the approved technical data sheet<\/td>\n<\/tr>\n<tr>\n<td>Vector group<\/td>\n<td>Dyn11, Yyn0, Yzn11 or project-specified<\/td>\n<\/tr>\n<tr>\n<td>Cooling method<\/td>\n<td>ONAN<\/td>\n<\/tr>\n<tr>\n<td>Voltage regulation<\/td>\n<td>Off-circuit tapping<\/td>\n<\/tr>\n<tr>\n<td>Tapping range<\/td>\n<td>Project-specific<\/td>\n<\/tr>\n<tr>\n<td>Tank<\/td>\n<td>Hermetically sealed corrugated steel tank<\/td>\n<\/tr>\n<tr>\n<td>Installation<\/td>\n<td>Outdoor or project-specified<\/td>\n<\/tr>\n<tr>\n<td>Accessories<\/td>\n<td>Configured according to the approved specification<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>Standards and Testing<\/h4>\n<p>Chinese-market configurations can be reviewed against the applicable requirements of GB 1094, GB\/T 6451 and GB 20052.<\/p>\n<p>Export configurations can be reviewed against IEC 60076 or another specified project standard. Final compliance depends on the approved design, guaranteed values and agreed test documentation.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #333333;\"><strong>Routine tests may include:<\/strong><\/span><\/p>\n<ul>\n<li>Winding resistance<\/li>\n<li>Voltage ratio and vector group<\/li>\n<li>No-load loss and no-load current<\/li>\n<li>Load loss and short-circuit impedance<\/li>\n<li>Routine dielectric tests<\/li>\n<li>Tank sealing and oil checks, where applicable<\/li>\n<\/ul>\n<p>Type tests, special tests and third-party inspection can be agreed before production when required.<\/p>\n<p>&nbsp;<\/p>\n<h4>Aplica\u00e7\u00f5es<\/h4>\n<ul>\n<li>Utility distribution networks<\/li>\n<li>Industrial parks and manufacturing facilities<\/li>\n<li>Outdoor distribution substations<\/li>\n<li>Commercial and infrastructure projects<\/li>\n<li>Urban and rural local power systems<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>Request a Quotation<\/h4>\n<p>Please provide the rated capacity, voltage ratio, frequency, vector group, tapping range, guaranteed loss requirements, applicable standard, installation conditions, required accessories, quantity and destination.<\/p>\n<p>&nbsp;<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The transformer uses a grain-oriented electrical steel core and a hermetically sealed corrugated tank. The corrugated tank accommodates changes in oil volume during operation while limiting contact between the insulating oil and the surrounding air.<\/p>","protected":false},"featured_media":1484,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[38],"product_tag":[],"class_list":["post-1483","product","type-product","status-publish","has-post-thumbnail","product_cat-oil-immersed-transformers","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/product\/1483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/comments?post=1483"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/media\/1484"}],"wp:attachment":[{"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/media?parent=1483"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/product_brand?post=1483"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/product_cat?post=1483"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/prennox.com\/pt\/wp-json\/wp\/v2\/product_tag?post=1483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}