10kV (Single Circuit) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit

Product Introduction

10kV Normal Pressure Sealed Air-Insulated Switchgear/Ring Main Unit (single circuit) uses clean and dry air as the insulation medium, eliminating the need for SF₆ gas, making it environmentally friendly with low operation and maintenance costs. Adopting a fully sealed structure design, it effectively isolates external dust, moisture and corrosive gases, adapting to installation requirements in various environments. The single-circuit configuration is concise and efficient, featuring reliable short-circuit breaking and overload protection functions, with a flexible and stable operating mechanism that ensures quick opening and closing responses. The cabinet has a compact structure and small footprint, facilitating installation in narrow spaces. It is widely used in incoming line, feeder and ring network connections of 10kV power distribution systems in urban distribution networks, industrial parks, residential communities, etc., providing safe, stable and environmentally friendly operation guarantee for power distribution networks.

Product advantages

• Normal pressure sealing: No leakage risk, ensuring excellent insulation performance.

• Air insulation: The gas requires no treatment. Through improved processing techniques, selection of high-grade materials, and optimized electric field design, it meets the demand for miniaturization.

• Simple operating mechanism: With a simple and stable structure, its mechanical service life can reach 10,000 times.

• Miniaturization: Its volume is 1/5 that of KYN, equivalent to the volume of conventional pressure-type ones, saving space.

• Standardized expansion method: Facilitates on-site installation and reduces power outage time.

Characteristics

• Solid-insulated switchgear: Each phase is encapsulated by epoxy resin casting. Disadvantage: The insulation strength of the insulating material will decrease over time, and once breakdown occurs, it cannot self-repair.

• Pressure-type switchgear: It can be made small in size. Disadvantage: There is a risk of gas leakage at the connection between the mechanism/instrument and the cabinet, which reduces insulation performance and may cause discharge.

• KYN28 switchgear: A widely used switchgear in the market. Disadvantages: It is a maintenance-required product that needs regular maintenance, and has a large floor area, with a minimum single-unit floor area of 1.2㎡.

• HXGN switchgear: Small in size and light in weight. Disadvantage: It is mostly of the load switch type and cannot interrupt short-circuit current.

Main parameters