Subway Laminated Busbar
In urban rail transit systems such as subways and light rails, core equipment such as traction inverters, auxiliary power sources, and energy recovery systems place extremely high demands on the reliability, current carrying capacity, spatial adaptability, and environmental resistance of electrical connections. Subway laminated busbar, as an advanced solution to replace traditional cable routing, is becoming a key component in the electrical design of rail transit.
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Product Introduction
In the process of upgrading urban rail transit to high-capacity, intelligent, and long-life, Subway laminated busbars serve as the core connection carrier for subway traction power supply systems and on-board converter systems, undertaking the key mission of efficient transmission of DC/AC energy, voltage stability support, and insulation safety protection. Accurately solving industry pain points such as transmission loss, insulation failure, vibration fatigue, and limited space under high-voltage conditions of subway, providing compliant, efficient, and implementable customized solutions for global rail transit engineering purchasers, system integrators, and vehicle manufacturers, is the core procurement choice for improving the stability of subway power system operation.
engineering purposes
Connection between traction inverter and motor
Subway laminated busbar solves the parasitic inductance and electromagnetic interference problems caused by traditional cables under high-frequency switching conditions, reduces circuit losses, and improves system operation stability and electromagnetic compatibility performance.
01
Auxiliary power system (SIV) power module connection
In a compact space, Laminated copper busbars achieve high-density electrical interconnection by integrating multiple connection points into a single, streamlined structure, effectively optimizing heat dissipation paths, reducing localized temperature rise, improving overall power density, and ensuring long-term operational.
02
Energy recovery system connected to DC bus
Provide low impedance and high voltage resistant electrical paths to adapt to high-frequency charging and discharging conditions, while incorporating Laminated flexible busbars to ensure efficient transmission, minimize thermal stress under dynamic loads, and guarantee long-term durability of energy recovery systems in demanding operational environments.
03
Interconnection of power devices between distribution cabinet and control cabinet
Replacing traditional wiring harnesses with a stacked structure, the Laminated copper bar simplifies internal wiring layout, reduces assembly time, and improves post maintenance convenience and system cleanliness, and provides a better engineering solution for modular design and mass production of electrical cabinets.
04
Customizable items
Dimensions and structural form
We can customize the length, width, thickness, installation hole position, and irregular structure of the Laminated bus bar for telecom according to the installation space, module layout, and assembly requirements provided by the customer. Support 2D/3D drawing docking to achieve precise matching with cabinets and power modules, meeting the engineering requirements of compact spaces or complex layouts.
Substrate type and thickness
The substrate of Laminated inverter busbars can be selected from high conductivity copper materials (such as T2Y2, C11000) or lightweight aluminum materials (such as 1060, A1050), or a copper aluminum composite structure can be used to balance performance and cost. The thickness of the substrate can be customized within the range of 0.5mm to 6.0mm, with precise selection based on the actual current carrying level.
Surface treatment and coating thickness
The surface treatment methods for Laminated busbar connectors include silver plating, tin plating, nickel plating, and passivation, which can be flexibly selected according to contact resistance requirements, environmental corrosion levels, and back-end welding processes. The coating thickness supports customization from 3 μ m to 12 μ m, and silver plating is recommended for high current.
Insulation method and color selection
The insulation solution of the Laminated low inductive bus bar includes various methods such as PET insulation paper (GTS from the United States, KREMPEL from Germany, etc.), PVC impregnation, epoxy powder coating, PE heat shrink tubing, and PA66 plastic shell, which are selected according to the pressure resistance level, temperature resistance range, flame retardant requirements, and installation method.
manufacturing advantage
The Subway laminated busbar adopts a fully enclosed laminated molding process, the conductor and insulation material are tightly adhered without internal air gaps, eliminating the hidden danger of partial discharge structurally. The production process follows standardized procedures, with strong product consistency, suitable for large-scale and high stability delivery. Integrated packaging eliminates complex wiring links, significantly improves assembly efficiency, and reduces on-site assembly failure rates, providing stable and reliable manufacturing support for large-scale applications.
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Our company can provide professional product solutions and support direct technical communication with engineering teams to ensure the reliability of products in practical applications. Welcome to contact us.
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