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Cu-Al Transition Busbar For High Voltage Switchgear

The copper-aluminum transition busbar is a transitional connection component specifically designed for high-voltage switches (with voltage levels ranging from 10kV to 35kV). Its core function is to solve the reliable connection problem between copper conductors and aluminum conductors within the high-voltage switch. It is a key component that ensures the stability and safety of the electrical transmission of the high-voltage switch. 

    The core advantage for Cu-Al Transition Busbar

    1.Anti-Corrosion & Longevity

    2.Excellent Conductivity & Low Energy Loss

    3.High Mechanical Strength & Stability

    4.Easy Installation & Wide Compatibility

    The Technical Specific For Cu-Al Transition Busbar

    Parameter Category

    Technical Data

    Applicable voltage level

    6kV - 35kV (the mainstream voltage of high-voltage switches)

    Rated Current

    100A - 2000A (customizable as needed)

    Rated short-time withstand current (4S)

    20kA、25kA、31.5kA、40kA

    Insulation resistance

    ≥1000 MΩ

    Working temperature

    -40℃~120℃

    Connection method

    Screw fixation

    Material combination

    Purple copper (T2) + Pure aluminum (1060)

    Surface treatment

    Tinned / Silver-coated (optional)

    The Application For Cu-Al Transition Busbar 

    1.Internal conductor connection of high-voltage switches
    Copper-aluminum connection between circuit breakers and busbars (such as transition connection from copper terminals of vacuum circuit breakers to aluminum busbars)
    Connection of incoming and outgoing terminals of disconnectors and load switches (taking into account the material differences between switch components and the aluminum busbars of cabinets)
    Transition of connection terminals for transformers, lightning arresters, etc. (to avoid increased contact resistance caused by direct contact of different materials)

    2.Connection of high-voltage switch cabinets with external equipment
    Terminal connection of aluminum busbars of switch cabinets with external copper cables
    Connection of copper-aluminum busbars when multiple switch cabinets operate in parallel
    Cross-material wiring between high-voltage switches and transformers, reactors, etc.

    3.Special scenarios for adaptation
    Copper-aluminum transition for outdoor high-voltage switchgear (resistant to corrosion in harsh environments)
    Copper-aluminum connection for high-voltage switches in new energy power stations (photovoltaic / wind power) (adapted for high current, high-frequency start-stop scenarios)
    Switching connections for high-voltage power distribution systems in rail transit, industrial and mining enterprises (able to withstand impact currents)

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    Package&Shipping

    Package&Shipping
    2-copies3-17

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