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High current busbars
Electricity meets little resistance
Pressurized air cables are ideal as high-current busbars for efficient connections in low-voltage or medium-voltage applications with rated currents up to 6000 A.
We support you from engineering to on-site installation – with tailored solutions for your requirements.
Pressurized air cables as high-current busbars
Pressurized air cables have the same function as air-insulated busbars with aluminum or copper conductors. Their encapsulated and compact design enables safe use even in critical environments in industrial applications and switchgear installations. The metallic casing provides excellent touch protection and fire protection while minimizing external magnetic fields.
Advantages of Using Pressurized Air Cables as High-Current Busbars
Better Technical Performance
Pressurized air cables offer nominal currents of up to 6000 A per cable for maximum efficiency. Additionally, they allow temporary overload capability during operation.1-phase, 2-phase, 3-phase or 4-phase Encapsulation
Various encapsulation options provide flexibility in selecting the optimal conductor system.Reduced Construction Costs & No Joints
The innovative flange connection and lower heat loss allow for a more compact installation with reduced space requirements and without the need for joint connections.Optimized Fire Protection
The thick metallic casing offers superior safety for touch protection, fire events, and arc faults, ensuring maximum operational security. This makes pressurized air cables ideal as high-current busbars in industrial environments and switchgear installations.Easier Transport & Installation
Lightweight aluminum tubing with low transport weight and small transport units optimizes construction logistics, especially for hard-to-reach construction sites.
For technical data details, plrease see here.
Cost comparison: Pressurized air cables vs. high-current busbars
For nominal currents above 2000 A, pressurized air cables have lower investment costs than traditional high-current busbars. The higher the nominal current, the more competitive pressurized air cables become
High current busbar, 145 kV, 2-phase enclosure
High current busbar 24 kV, 2500 A, 3-phase enclosure
Test installations
For a new technology like pressurized air cables, it is important for grid operators to gain operational experience. A good way to achieve this is through test installations within their own grid.
Test installationen for your grid
- Experience the technical advantages and performance of Hivoduct pressurized air cables under real conditions by testing them directly in your own application.
Take advantage of the opportunity to test the benefits, flexibility, and adaptability of the technology in your grid. This allows you to gain operational experience before proceeding with large-scale implementation.
Selection guide: Choose a small project where existing solutions (overhead lines, XLPE cables, or busbars) are difficult to apply. Select a project with a high nominal current, as pressurized air cables offer the greatest benefits in such cases.
Temporary installation: If you only require a temporary test installation, we recommend using pressurized air cables as construction site cables. During switchgear modifications, temporary connections often need to be installed. Pressurized air cables are flexible, robust, and can be reused at other locations after use.