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:
◈
Connection of high and low voltage side outgoing lines of power transformers to realize conductive transition
◈
Neutral point connection of transformers to ensure grounding safety
◈
Conductive transition between transformers, bus ducts and power distribution cabinets
◈
Internal conductive connection of oil-immersed and dry-type power transformers
◈
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
Frequently Asked Questions
Q1
What voltage and current levels does this copper foil flexible connector support?
This product covers voltage levels from 10kV to 1100kV and current levels from 1kA to 50kA, making it compatible with all standard distribution and power transformer specifications. Custom configurations are also available for specific project requirements.
Q2
What material is used and why is T2 copper foil preferred?
T2 high-purity copper foil with a copper content of ≥99.9% and conductivity of ≥98% IACS is used. This grade ensures minimal electrical resistance, low heat generation, and outstanding long-term conductivity stability — critical for high-performance transformer applications.
Q3
What welding process is applied and what are its advantages?
We use polymer diffusion welding (molecular welding) technology. This process produces no welding slag or residue, creates an extremely firm bond with tensile strength ≥120MPa, and significantly extends the product's service life to ≥25 years — matching the operational lifespan of power transformers.
Q4
Can the connector be customized for specific transformer dimensions?
Yes. All products are processed strictly according to customer-supplied drawings with a dimensional tolerance of ≤±0.1mm. Copper foil thickness (0.05mm to 0.3mm) and layer count can be adjusted to meet specific current-carrying and installation requirements.
Q5
What surface treatment options are available?
Three surface treatment options are offered: bare copper, tin plating, and silver plating. Tin plating provides effective anti-oxidation protection for standard environments, while silver plating delivers lower contact resistance and is recommended for high-current or demanding applications.
Q6
Is this product suitable for outdoor or humid environments?
Yes. The insulation protection options — PVC, silicone, or fluoroplastic sleeves — are designed to be leakage-proof and corrosion-resistant, making the connector fully suitable for outdoor installations, high-humidity environments, and industrial power substation applications.
