VKE Transformer has tailored professional winding processes for oil-immersed transformers and dry-type transformers according to the characteristics of different product types and the stringent requirements of overseas markets, and Epoxy Resin Dry Transformer manufacturers can take our mature technology as an important reference for high-standard production.
Core Raw Material Selection: Lay a Solid Foundation for Winding Process
The quality of transformer winding products starts with the selection of raw materials. VKE Transformer uses high-quality electrical copper (flat copper wire, round copper wire, copper foil) as the main conductor material for transformers, which has the advantages of high electrical conductivity, low load loss and stable mechanical properties, and fully complies with IEC international electrical standards. For customers with cost performance requirements, we also provide aluminum conductor alternative solutions and have a deep understanding of the performance differences and application scenarios of copper and aluminum conductors to achieve targeted product recommendation.
In terms of insulating materials, we adopt differentiated configuration for oil-immersed and dry-type transformers: oil-immersed transformers use high-density cable paper and crepe paper for insulation, which is suitable for outdoor working scenarios with high cost performance; dry-type transformers are equipped with heat-resistant polyester film, DMD composite insulating paper, and matched with epoxy resin vacuum casting process. This environmentally friendly and fire-resistant insulating material solution not only meets the strict environmental and safety standards of the European Union, North America and other high-end markets, but also is the core technical support for us to become one of the reliable Epoxy Resin Dry Transformer manufacturers. In addition, we pay equal attention to auxiliary materials such as insulating binding belts and lead terminals, and strictly control the process details to ensure the transportation stability and service life of products.
Sophisticated Winding Process: Create Reliable Transformer Products
VKE Transformer regards the pre-preparation process as the first pass of quality control. Before winding, we strictly check the drawings and parameters according to customer orders and national electrical standards, re-inspect all raw materials, and debug the tension and speed of winding machines in a standardized way to ensure the standardization and consistency of production, which fully meets the quality requirements of overseas bulk export orders.
For oil-immersed transformers, we adopt the layer winding process, focusing on insulation sealing and structural stability. The whole process includes inner layer insulation wrapping, conductor winding, lead welding, finishing binding and testing. Every link is strictly controlled to ensure no electric leakage, short circuit and other problems, and the finished products are suitable for long-distance maritime transportation and complex overseas operation environments.
The winding process of dry-type transformers is more precise, and the whole process is matched with epoxy resin vacuum casting technology to achieve high standards of environmental protection, fire prevention and moisture resistance. The process includes mold pretreatment, winding coil winding, tension and turn number secondary calibration, lead fixing and insulation treatment, low-temperature pre-baking dehumidification, vacuum epoxy casting, high-temperature curing and post-treatment. Especially in the winding stage, we carry out wire pretreatment, precise arrangement, and reserve heat dissipation air ducts; the low-temperature pre-baking and vacuum casting links completely eliminate air bubbles and moisture in the coil, ensuring the insulation performance and long-term operation stability of the product. For the low-voltage coil of dry-type transformers, we adopt the foil winding process, which makes the current distribution more uniform, effectively reduces eddy current loss, and has stronger heat dissipation capacity and short-circuit resistance. As professional Epoxy Resin Dry Transformer manufacturers, we have polished every detail of the dry-type transformer winding process to provide high-quality products for indoor scenarios such as residential areas, shopping malls and subways.
Adhere to Customer-Oriented: Customized Solutions for Overseas Markets
VKE Transformer is deeply engaged in the overseas transformer market, and fully considers the differences in electrical standards, use scenarios and customization needs of different countries and regions in the winding process design. We can flexibly adjust the non-core details of the winding process according to the overseas customized orders, and strictly abide by the unchangeable boundary of core parameters such as turn number and core insulation thickness to ensure the product performance. At the same time, we optimize the winding binding and insulation protection process to make the product adapt to the vibration and moisture-proof requirements of long-distance maritime transportation, and solve the worries of overseas customers.