AIR-12 Dry Air-Insulated Ring Main Unit

With the advancement of the "dual carbon" goal, the environmental protection requirements for equipment in power grid construction have been upgraded from "low emissions" to "zero emissions". Any medium containing SF6 components is at risk of being phased out or subject to high carbon taxes in the future. Junray Electrical's AIR-12 Dry Air-Insulated Ring Main Unit no longer uses any industrial synthetic gases but returns to nature, using pure dry air as the insulating medium. This means that your power distribution project will achieve complete zero greenhouse effect and completely eliminate any potential risks related to environmental compliance.

Technical Specifications

Pure air medium and fully insulated hard core protection

The core competitiveness of AIR-12 Dry Air-Insulated Ring Main Unit lies in its ultimate medium selection and fully insulated structural design:

Pure dry air, zero greenhouse effect: This is a true "air cabinet". The insulating medium is sourced from nature and contains no SF6 components, with a GWP (Global Warming Potential) of 0. No matter how strict environmental policies become, this equipment will always be compliant and there is no need to worry about any carbon taxes or recycling processing costs.

Fully insulated high protection: Although the medium is air, the protection level has not been reduced. The fully insulated and fully sealed structural design enables it to have the same protection capability as SF6-filled cabinets. Whether it is salt spray corrosion in coastal areas, high humidity in underground pipe galleries, or conductive dust in industrial areas, none of these can invade the air box interior, ensuring that the equipment remains rock-solid in harsh environments.

Maintenance-free and low cost: The chemical properties of dry air are extremely stable, and the sealing life of the air box is long. The equipment does not require replenishing air or maintenance throughout its entire life cycle. Compared to traditional ring main units, it eliminates a large amount of operation and maintenance manpower and testing costs, and is particularly suitable for those remote and difficult-to-maintain sites.

Junray Electrical's Technological Innovation

As a professional Manufacturer with profound technical expertise, Junray Electrical has overcome the technical barriers of large insulation distance for dry air and difficult electric field control. We strictly follow the national standards of Air12 dry air ring main units for production, utilizing advanced electric field optimization design to ensure insulation performance while achieving the most compact cabinet structure.

This AIR-12 Dry Air-Insulated Ring Main Unit is equipped with a complete "five-prevention" mechanical interlock function, eliminating the risk of misoperation. Every factory-delivered cabinet undergoes rigorous sealing tests, power frequency withstand voltage tests, and partial discharge tests. We guarantee that the operational stability and fault rate control of the product reach industry-leading levels, providing you with more reliable power protection than traditional gas-filled cabinets.

Applicable scenarios

Core urban area: The power distribution in the core urban area has the highest environmental protection requirements.

First-tier cities: The power distribution in first-tier cities has the highest environmental protection requirements.

Coastal areas: The power distribution in coastal regions, with anti-salt spray and environmental protection.

High-humidity areas: The power distribution in high-humidity regions.

High-dust areas: The power distribution in high-dust regions.

Details presentation

1. Dry air fully insulated air box: An air box filled with pure dry air, fully insulated, with zero greenhouse effect, extremely environmentally friendly.

2. Maintenance-free design: A maintenance-free design, no frequent repairs required, saving maintenance costs.

3. Five-prevention interlock protection: Mechanical interlock to prevent accidental operation, safe and reliable.

4. Ultra-compact cabinet: Smaller volume, less floor space, suitable for small distribution rooms.

FAQ

Question: Will this AIR-12 Dry Air-Insulated Ring Main Unit be much larger in size compared to traditional SF6-filled switch cabinets?

Answer: Although the insulation performance of air is weaker than that of SF6, Junray Electrical has optimized the electric field design and compacted the cabinet structure, resulting in a very small size. It even occupies less space than many traditional gas-filled switch cabinets and is highly suitable for distribution rooms with limited space.

Question: Will the insulation performance of dry air deteriorate in an extremely humid environment?

Answer: Our air box adopts a fully sealed welding structure. The air inside is "dry" air that has undergone strict treatment, and the protection level is extremely high. External moisture and salt fog cannot enter the air box interior. Therefore, regardless of how harsh the external environment is, the internal insulation performance remains stable.

Question: Does it meet the environmental protection acceptance standards of the State Grid?

Answer: Since it uses pure dry air which contains no greenhouse gases and has a GWP value of 0, it perfectly meets and even exceeds the acceptance standards for environmental-friendly power distribution equipment set by the State Grid and major cities. It is truly a green product that does not require inspection.