{"id":35646,"date":"2026-09-08T17:06:34","date_gmt":"2026-09-08T09:06:34","guid":{"rendered":"https:\/\/electricalcabinet.net\/oil-immersed-transformer\/"},"modified":"2026-09-08T23:53:39","modified_gmt":"2026-09-08T15:53:39","slug":"oil-immersed-transformer","status":"publish","type":"page","link":"https:\/\/electricalcabinet.net\/pt\/oil-immersed-transformer\/","title":{"rendered":"Oil Immersed Transformer"},"content":{"rendered":"
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Oil Immersed Transformer<\/h1> \n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Oil Immersed Transformer<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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An oil immersed transformer lets the fluid do two jobs at once \u2014 insulating the windings and carrying their heat to the tank walls. That double duty makes it the most cost-effective construction per kVA, and the reason it dominates outdoor distribution: utilities, industrial compounds and infrastructure projects all run on oil-filled units in sealed or conservator tanks.<\/p>

We manufacture oil immersed transformers with proven tank fabrication, standard protection packages, and your choice of fluid, core and loss specification. Production runs in a plant operating since 2010 that has delivered 4,000+ electrical projects; routine test records accompany every shipment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Key Specifications & Options<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The configuration below reflects the options we build to order for oil immersed transformers. Every parameter can be adjusted to match your drawings and site conditions \u2014 send us your requirements and our engineers will confirm what applies to your project.<\/p>
Parameter<\/th>Options \/ Typical Range<\/th><\/tr><\/thead>
Rated power<\/strong><\/td>10\u201310,000 kVA program range<\/td><\/tr>
Voltage class<\/strong><\/td>Low-voltage distribution up to 36 kV primary class; higher classes by project<\/td><\/tr>
Tank construction<\/strong><\/td>Hermetically sealed (welded, sealed for life) or conservator with breather<\/td><\/tr>
Fluid<\/strong><\/td>Mineral oil standard; natural ester or synthetic ester options<\/td><\/tr>
Cooling<\/strong><\/td>ONAN standard; ONAF with fan package on higher ratings<\/td><\/tr>
Protection options<\/strong><\/td>Buchholz relay (conservator type), oil and winding temperature indicators, pressure relief device<\/td><\/tr>
Core & losses<\/strong><\/td>Conventional or low-loss CRGO; amorphous core option for standby-heavy duty<\/td><\/tr>
Standards<\/strong><\/td>IEC 60076 series or IEEE C57 series per destination market<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Perguntas mais frequentes<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Hermetically sealed or conservator type \u2014 which should I order?<\/h3>\n

Sealed tanks weld the oil in for life: no breather, no moisture management, ideal for unattended and lightly loaded sites. Conservator tanks let the oil breathe through a desiccant breather and suit heavier cyclic loading, hot climates and units you want to monitor through oil tests \u2014 the Buchholz relay also requires a conservator. Duty profile and maintenance access decide.<\/p>\n

Mineral oil or ester fluid \u2014 what is the trade-off?<\/h3>\n

Mineral oil is the economical default with a century of service history. Natural and synthetic esters cost more per litre but raise fire points dramatically and biodegrade \u2014 valued near waterways, inside buildings and in environmentally sensitive permits. We quote both fluids so the comparison is on numbers.<\/p>\n

Which protection devices come with the tank?<\/h3>\n

Conservator units take the classic package \u2014 Buchholz relay, oil and winding temperature indicators, pressure relief. Sealed units rely on temperature indication and pressure monitors instead. Protection scope is configured per project; tell us how the unit will be watched in service and we set the package to match.<\/p>\n

How much maintenance does the oil need?<\/h3>\n

Conservator units need periodic oil sampling \u2014 dielectric strength, moisture and dissolved gas analysis on critical units \u2014 plus breather desiccant checks. Sealed tanks reduce this to visual inspection and periodic parameter review. We ship a maintenance schedule matched to the tank type you order.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Related Guides<\/h2> \n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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