{"id":1690,"date":"2026-08-06T11:59:48","date_gmt":"2026-08-06T03:59:48","guid":{"rendered":"https:\/\/www.zishengelectric.com\/?p=1690"},"modified":"2026-08-06T13:10:20","modified_gmt":"2026-08-06T05:10:20","slug":"oil-immersed-transformer-manufacturer-for-power-distribution-projects","status":"publish","type":"post","link":"https:\/\/www.zishengelectric.com\/fr\/oil-immersed-transformer-manufacturer-for-power-distribution-projects.html","title":{"rendered":"Oil Immersed Transformer Manufacturer for Power Distribution Projects"},"content":{"rendered":"

Oil immersed transformers are used in power transmission and distribution systems where reliable voltage conversion is required. The transformer core and windings are submerged in insulating oil, which provides both electrical insulation and heat dissipation. These transformers are installed in utility substations, industrial plants, renewable energy projects, and infrastructure developments.<\/p>\n\n\n\n

For EPC contractors and project owners, selecting a manufacturer involves more than comparing equipment specifications. It requires evaluating production capability, engineering support, quality control procedures, and export experience. Zisheng Electric provides oil immersed transformer manufacturing services for international projects, with customization based on project voltage levels, capacity requirements, installation conditions, and applicable standards.<\/p>\n\n\n\n

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Technical Specifications: Oil Immersed Distribution Transformers<\/h2>\n\n\n\n

The following table shows standard parameters for our commonly supplied oil immersed distribution transformers. These values serve as reference points; actual specifications are configured according to project requirements.<\/p>\n\n\n\n

Parameter<\/th>Standard Range<\/th><\/tr><\/thead>
Rated Power<\/td>50 kVA \u2013 5,000 kVA<\/td><\/tr>
Primary Voltage<\/td>6 kV, 10 kV, 11 kV, 13.8 kV, 20 kV, 33 kV<\/td><\/tr>
Secondary Voltage<\/td>0.4 kV, 0.415 kV, 0.69 kV<\/td><\/tr>
Frequency<\/td>50 Hz \/ 60 Hz<\/td><\/tr>
Vector Group<\/td>Dyn11, Yyn0, YNd11<\/td><\/tr>
Cooling Method<\/td>ONAN (Oil Natural Air Natural)<\/td><\/tr>
Tapping Range<\/td>\u00b12\u00d72.5%, \u00b15% (Off-circuit or On-load)<\/td><\/tr>
Insulation Class<\/td>A Class (105\u00b0C oil temperature rise)<\/td><\/tr>
Winding Material<\/td>Copper or Aluminum (per specification)<\/td><\/tr>
Core Material<\/td>Grain-oriented silicon steel (high-permeability grades)<\/td><\/tr>
Tank Type<\/td>Corrugated fin wall or panel-type radiator<\/td><\/tr>
Applicable Standard<\/td>IEC 60076, customer-specific standards<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

No-Load Loss Reference Values (11 kV, Copper Winding, ONAN):<\/strong><\/p>\n\n\n\n

Rated Power (kVA)<\/th>Typical No-Load Loss (W)<\/th>Typical Load Loss at 75\u00b0C (W)<\/th><\/tr><\/thead>
100<\/td>320<\/td>1,650<\/td><\/tr>
200<\/td>540<\/td>2,800<\/td><\/tr>
315<\/td>760<\/td>3,900<\/td><\/tr>
500<\/td>1,080<\/td>5,600<\/td><\/tr>
800<\/td>1,540<\/td>7,800<\/td><\/tr>
1,000<\/td>1,800<\/td>9,200<\/td><\/tr>
1,600<\/td>2,600<\/td>13,500<\/td><\/tr>
2,000<\/td>3,100<\/td>16,200<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Above values are indicative. Actual losses depend on core material grade, winding design, and customer specifications. Efficiency levels can be configured to meet local regulations.<\/em><\/p>\n\n\n\n

Product Range<\/h2>\n\n\n\n

We manufacture oil immersed transformers in multiple configurations to suit different applications:<\/p>\n\n\n\n