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Technical Article

 

Epoxy resin cast dry-type transformer foil wound coil

07-31 2025 | By:

Product Advantages
Epoxy resin cast dry-type transformer foil wound coils offer numerous advantages, including flame retardancy, self-extinguishing properties, moisture resistance, high mechanical strength, compact size, light weight, and strong short-circuit resistance. They offer superior fire protection, rated F1, with insulation grades F and H. They also offer superior lightning surge protection (95kV for 11kV products). Their globally proven reliability has been supplied to 27 dry-type transformer manufacturers worldwide. They have been sold to countries and regions including Russia, Uzbekistan, Spain, France, Germany, and the United States. Compliant standards: IEC60076-1 and IEC60076-11. Custom production is available to meet customer requirements.

As a leading manufacturer in China, we specialize in supplying high-quality High-Voltage (HV) and Low-Voltage (LV) cast resin winding coilsepoxy-encased conductors, and insulated transformer windings as spare parts for transformer assembly factories worldwide. Our products include resin-coated copper and aluminum windingsvacuum-cast transformer coilstoroidal winding assemblies, and precision-crafted transformer core components, all engineered to meet international standards. These components ensure excellent compatibility, durability, and performance across a variety of dry-type transformer applications.

We pride ourselves on offering cost-effective and reliable solutions, including resin-encapsulated conductorstransformer core windings, and low-loss transformer components, tailored to the needs of transformer assembly operations in diverse industries. Partner with us for precision-crafted electrical winding componentsencapsulated HV and LV windings, and dependable service that supports your business success.

High Voltage Coil 1Low Voltage Coil 1

Epoxy Resin Cast Dry-Type Transformer Foil Wound Coil
Winding Type:Two Winding
Winding Material:Aluminum / Copper
Rated Capacity:50kVA to 6300kVA
High Voltage:6kV / 10kV / 11kV / 20kV / 33kV / 35kV
Low Voltage:0.4kV / 3kV / 6kV or as requested
Tapping Range:±2×2.5% / ±5%
Impedance Voltage:4% / 6% / 7% / 8%

No-Load Loss:as requested
Load Loss:as requested
No-Load Current:as requested
Frequency:50Hz / 60Hz
Connection Group:Yyn0 / Dyn11
Cooling Method:AN / AF
Insulation Level:F / H
Fire Safety Level:F1
Dry Transformer Coil










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