Specialized Copper Foil Flexible Connector for Power Transformer
Specialized Copper Foil Flexible Connector for Power Transformer
The Core Advantages
Strong Special Adaptability Precisely matched with oil-immersed and dry-type power transformers, covering voltage levels of 10kV-1100kV and current levels of 1kA-50kA.
High-Quality Material Adopting T2 high-purity copper foil (copper content ≥99.9%), with high conductivity, low resistance and low heat generation.
Mature & Durable Craftsmanship Adopting polymer diffusion welding/molecular welding process, no solder residue, extending service life to ≥25 years.
Outstanding Core Functions Effectively buffers vibration, releases stress caused by thermal expansion, and compensates for installation errors.


Technical Specifications
| Parameter Name | Specification Range | Description (Special Adaptation) |
|---|---|---|
| Material | T2 Copper Foil | Copper content ≥99.9%, conductivity ≥98%IACS. Supporting flexible busbar customization. |
| Copper Foil Thickness | 0.05mm, 0.1mm, 0.2mm, 0.3mm | Layers can be laminated and increased for high current according to needs. |
| Voltage Level | 10kV-1100kV | Covers all specifications of distribution and power transformers. |
| Current Level | 1kA-50kA | Customizable for high/low voltage outgoing lines and neutral points. |
| Surface Treatment | Bare Copper, Tin/Silver Plating | Tin plating for anti-oxidation; silver plating for low contact resistance. |
| Welding Process | Polymer Diffusion/Molecular Welding | No welding slag, firm bonding, tensile strength ≥120MPa. |
| Insulation Protection | PVC/Silicone/Fluoroplastic | Leakage-proof and corrosion-proof, suitable for outdoor/humid environments. |
| Service Life | ≥25 Years | Meets the service life standard of power transformers. |
Application Scenarios
This product is specially designed for power transformers, mainly applied in the following scenarios:
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Connection of high and low voltage side outgoing lines of power transformers to realize conductive transition
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Neutral point connection of transformers to ensure grounding safety
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Conductive transition between transformers, bus ducts and power distribution cabinets
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Internal conductive connection of oil-immersed and dry-type power transformers
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Power transformer renovation and expansion projects in power substations
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Transformer-related conductive connection scenarios in power plants and power grid projects
Product Details
Copper Foil Details: High-purity T2 copper foil is selected, with flat surface, no oxidation and no scratches, stable conductive performance.
Welding Details: Supported by diffusion welding process, the terminal is firmly welded, tensile and vibration-resistant.
Surface Treatment Details: The tin plating layer is uniform, effectively preventing copper foil oxidation; the silver plating layer is bright for large current.
Insulation Details: The insulation sleeve fits closely, temperature-resistant, fireproof and leakage-proof, complying with safety standards.
Dimensional Accuracy: Processed strictly according to drawings, dimensional error ≤±0.1mm, adapting to transformer installation size.
Package & Shipment











