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1. Core Features
1.1 Ultra-lightweight design: Aluminum alloy has a density of approximately 2.7 g/cm³, just one-third that of conventional steel plates (around 7.85 g/cm³). This significantly reduces the weight of the entire GIS enclosure, including the housing, busbar cabinet, and circuit breaker gas chamber.
1.2 Outstanding corrosion resistance: The aluminum alloy surface naturally forms a dense, chemically stable aluminum oxide (Al₂O₃) protective layer, providing exceptional resistance to atmospheric corrosion. This makes it suitable for long-term use in harsh environments without requiring additional coating.
1.3 Excellent conductivity: Although pure aluminum's conductivity is only 61% of copper's, its conductivity can meet the requirements for eddy current protection and grounding through alloy optimization. As a casing, its non-magnetic properties also prevent hysteresis and eddy current heating.
1.4 Excellent Machinability and Formability：
Extrudable molding: Capable of producing profiles with complex shapes and precise dimensions, facilitating the fabrication of integrated structures such as sealing grooves and reinforcing ribs.
Weldability: Utilizing advanced MIG/TIG welding technology, it produces high-strength, highly airtight welds, which is crucial for preventing leakage of SF₆ or other environmentally friendly insulating gases within GIS systems.
1.5 Excellent low temperature performance: No brittle transition in extreme cold environment, maintaining good mechanical properties.
2. Product Advantages
2.1 Advantages of manufacturing and installation：
Significantly reduces transportation and installation burdens: Equipment weight can be reduced by 40%-50%, drastically lowering transportation costs and the requirements for lifting equipment. On-site installation becomes faster and safer, with substantially reduced load-bearing demands on installation platforms and buildings.
Modular design simplifies implementation: The lightweight design enables larger prefabricated modules, enhances factory integration, reduces on-site assembly labor, and improves both project quality and schedule.
2.2 Advantages of operation and maintenance：
Lifetime anti-corrosion maintenance: Unlike steel enclosures, aluminum alloy casings require no periodic paint repainting, significantly reducing lifecycle maintenance costs and downtime.
Exceptional environmental adaptability: Particularly suited for coastal areas, industrial pollution zones, and high-humidity environments with strong corrosive conditions, maintaining excellent appearance and performance over long-term service.
Outstanding sealing durability: The thermal expansion coefficient of aluminum alloy better matches that of common sealing materials (e.g., O-rings), ensuring stable sealing interfaces under temperature cycling and reducing gas leakage risks.
Internal electric field optimization: The inner surface of the aluminum alloy casing can achieve excellent smoothness through precision machining. When combined with SF₆ gas, it ensures a more uniform electric field distribution and high insulation reliability.
2.3 Life cycle economic advantage：
High residual value: Aluminum alloy is a high-value recyclable material, and the recycling value after equipment retirement is significant.
3. Core Role
3.1 High-reliability power distribution and protection core: As the core equipment of substations, it handles power connection, distribution, and disconnection, as well as rapid circuit interruption and protection during line faults. Its fully enclosed structure ensures immunity to external environmental factors (dust, moisture, salt spray, small animals, etc.), guaranteeing exceptional reliability.
3.2 Optimal Solution under Extreme Space Conditions：
In-house substations, underground substations, and building substations: Their lightweight design significantly reduces structural load-bearing requirements, making them ideal for urban centers, mountainous areas, and other space-constrained locations.
Offshore wind power substations and offshore platforms: Their exceptional salt spray corrosion resistance and lightweight design provide unparalleled advantages in such applications.
3.3 Designing compact, intelligent substations: The lightweight and modular design facilitates integration with transformers and other equipment, enabling the creation of compact pre-assembled substations (e.g., E-House). This approach also supports the integration of smart sensors, enabling real-time condition monitoring and intelligent operation and maintenance.
3.4 Enhancing the efficiency and flexibility of power grid construction: Faster installation speeds and stronger environmental adaptability can shorten substation construction cycles and expand grid deployment capabilities in complex geographical and environmental conditions.
