Dry Type Transformer Copper Coil Windings
07-31 2025 | By:
Customized High Low Voltage Cast Resin Copper Aluminum Winding Coil for Dry Type Transformer
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%
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
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
Windings offer high mechanical strength, no partial discharge, and are non-flammable.
Windings are made of aluminum or copper conductors.
Epoxy resin materials offer stable performance and strong aging resistance, with a service life of over 30 years.
Epoxy resin dry-type coil transformers are smaller and lighter, making them easier to transport and install, saving space.
Low-temperature insulation
Factory Testing
ZTELEC YUGUANG prepares and issues a test report for each transformer in accordance with IEC 60076. In addition to routine testing, we also provide type testing and special testing to meet all customer requirements.
Testing
Routine Testing
Winding Resistance Test
Voltage Ratio Measurement and Connection Group Number Verification
Short-Circuit Impedance and Load Loss Measurement
No-Load Loss and No-Load Current Measurement
Applied Voltage Withstand Test
Induced Voltage Withstand Test
Partial Discharge Measurement
Type Testing
Lightning Surge Test
Temperature Rise Test
Special Testing
Partial Discharge Measurement
Sound Level Test
Short-Circuit Withstand Test
Environmental Testing
Climatic Testing
Combustion Performance Test
Dry Type Transformer Copper Coil Windings
Product Description
As a leading manufacturer in China, we specialize in supplying high-quality High-Voltage (HV) and Low-Voltage (LV) cast resin winding coils, epoxy-encased conductors, and insulated transformer windings as spare parts for transformer assembly factories worldwide. Our products include resin-coated copper and aluminum windings, vacuum-cast transformer coils, toroidal 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 conductors, transformer 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 components, encapsulated HV and LV windings, and dependable service that supports your business success.
The high-voltage coil is vacuum cast with epoxy resin filled with fillers, with low partial discharge and high electrical strength of the coil. The inner and outer walls of the winding are reinforced with glass fiber mesh plates, which increases the mechanical strength of the coil and improves the ability of the transformer to withstand sudden short circuits.
The low-voltage coil adopts a foil structure, which solves the problem of axial spiral angle when using wire winding, making the ampere turn more balanced. At the same time, the coil adopts axial cooling air duct, enhancing the heat dissipation capacity. The DMD epoxy resin pre impregnated cloth is used between the winding layers, and the overall solidification is formed.
Capacity Range: 50kVA to 6300 kVA to meet a variety of power needs.
Voltage Levels:
Primary: 6kV, 10kV, 11kV, 20kV, 33kV, 35kV.
Secondary: 0.4kV, 3kV, 6kV or customized as required.
You may also find these interesting:
