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    Copper Busbar for Wind Power - High Conductivity from China Suppliers and Factory for Turbines and Generators

    Introducing our high-quality copper busbar, expertly designed for core components in onshore and offshore wind turbine converters, generators, and grid connection cabinets. Manufactured in China, our busbars boast excellent conductivity, exceptional anti-vibration properties, and robust resistance to extreme environmental conditions. This ensures long-term stable and efficient power transmission for your wind power systems. As leading suppliers in the industry, we offer busbars with various finishes, including bare copper, tin plating, nickel plating, and silver plating. Choose our factory for reliable and efficient power solutions
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      Product Details

      The Core Advantage for Copper Busbar

      • Ultra-high Conductivity, Low Loss & High Efficiency

        Utilizing 99.99% high-purity electrolytic copper / TU2 oxygen-free copper, with a conductivity of ≥ 98% IACS and a resistance as low as 0.0172μΩ・m, it reduces line loss by 15%-20% and enhances power generation efficiency. The rated current-carrying capacity of the hard copper busbar is up to 6300A, while the flexible copper busbar is suitable for 6000A large current transmission.

      • Resistant to Vibration & Weathering

        The hard copper bars have a tensile strength of ≥ 280 MPa, and can operate stably within the temperature range of -40℃ to 150℃. The flexible laminated structure can absorb vibrations of 10-50Hz and an acceleration of 15g in the nacelle, counteracting thermal expansion and contraction stress, and preventing bolt loosening and deterioration of the contact surface.

      • Corrosion-resistant & Durable, Maintenance-free

        Surface treated with tin plating / silver plating / spray coating, resistant to salt spray for ≥ 2000 hours, wind and sand abrasion up to 10,000 cycles, IP65 protection, suitable for harsh environments such as high humidity at sea and sand dust on land.

      • Customized Adaptation & Easy Installation

        Supports customization of cross-section (such as 40mm×8mm, 125mm×5mm, etc.), length, punching, insulation coating, etc. The contact pressure of the crimping terminal is ≥ 500N, and the installation efficiency is increased by 40%.

      The Technical Specifications for Copper Busbar

      Material T2 copper / C11000 / Cu-ETP 99.9% purity
      Size Customized
      Finish Bare, Tin Plating, Nickel Plating, Silver Plating
      Working Temperature -50ºC to 150ºC
      Ampacity 500A to 6000A
      OEM / ODM Accepted

      The Application for Copper Busbar

      • Onshore Wind Power

        IGBT module connection of converter, wiring inside the nacelle, grid connection cabinet bus system.

      • Offshore Wind Power

        Conductive connection of generator stator/rotor, DC bus of offshore converter, anti-corrosion grid connection equipment.

      • Other Adaptations

        Wind power energy storage supporting cabinet, grid connection station bus bar.

      About Copper Busbar

      FAQ for Copper Busbar

      Q Why is silver-coated copper busbar preferred for offshore wind power?
      A The silver coating offers better oxidation resistance and lower contact resistance, making it suitable for high-salt spray environments and extending the service life by 30%.
      Q How to select between flexible copper busbars and hard copper busbars?
      A For dynamic connections (such as between the generator and the converter), choose flexible copper busbars to absorb vibrations. For static current collection (such as the busbars of the grid connection cabinet), choose hard copper busbars to ensure current carrying capacity and rigidity.
      Q What surface finishes are available for copper busbars?
      A Copper busbars are available with bare, tin plating, nickel plating, and silver plating finishes. Each finish offers different levels of corrosion resistance and conductivity, allowing selection based on the specific application environment.
      Q Can copper busbars be customized to specific dimensions?
      A Yes. We support full customization including cross-section size (e.g., 40mm×8mm, 125mm×5mm), length, punching patterns, and insulation coating. OEM and ODM orders are both accepted.
      Q What is the maximum current-carrying capacity of your copper busbars?
      A Our hard copper busbars support a rated current-carrying capacity of up to 6300A, while flexible copper busbars are suitable for large current transmission up to 6000A, covering a full range from 500A to 6000A+.
      Q Are copper busbars suitable for extreme temperature environments?
      A Yes. Our copper busbars are rated for operating temperatures from -50ºC to 150ºC, making them suitable for both arctic onshore wind farms and high-temperature converter environments. The flexible laminated structure also compensates for thermal expansion and contraction stress.

      Package & Shipping

      Package & Shipping