Description

The 10kV (Flexible Combination of Multiple Cabinet Types) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit is a versatile medium-voltage power distribution system designed to adapt to diverse operational needs. Operating at 10kV with a normal-pressure sealed structure, it uses air as the insulating medium (eliminating reliance on SF₆ gas) and features modular cabinet designs that can be flexibly combined. This switchgear integrates power distribution, protection, and control functions, making it suitable for scenarios requiring customized configurations—such as industrial zones, urban grids, commercial complexes, and renewable energy facilities—where adaptability to varying load demands and spatial constraints is critical.

Key Features

• Flexible Cabinet Combinations: Offers a range of modular cabinet types (e.g., incoming line cabinets, outgoing line cabinets, transformer cabinets) that can be freely combined based on project requirements. This allows for tailored configurations to match specific power distribution layouts, load capacities, or functional needs (e.g., dual-loop supply, metering integration).

• Normal Pressure Air Insulation: Operates at atmospheric pressure with air as the insulating medium, avoiding the risks of gas leakage, environmental pollution, or the need for regular gas refilling/maintenance associated with SF₆-based systems. Enhances sustainability and reduces long-term operational costs.

• Sealed & Durable Enclosure: The hermetically sealed cabinet structure protects internal components from moisture, dust, corrosive gases, and external impacts, ensuring stable performance in harsh environments (e.g., high humidity, industrial dust, coastal areas).

• Space-Efficient Design: Modular cabinets are compact in size, enabling efficient use of installation space. Whether for indoor substations, underground chambers, or limited-area sites, the flexible layout minimizes spatial requirements.

• High Safety & Reliability: Equipped with mechanical interlocks, anti-misoperation mechanisms, and visible isolation points to prevent accidental contact with live parts. The enclosed design also reduces arc flash risks, ensuring operator safety during maintenance or operation.

• Easy Expansion & Upgrades: The modular structure allows for straightforward on-site expansion or reconfiguration. As power demands grow or system requirements change, additional cabinets can be integrated without extensive overhauls, minimizing downtime and adapting to evolving grid needs.

Normal Service Conditions

• Maximum Temperature: +40°C (average value within 24 hours ≤ 35°C)

• Minimum Temperature: -25°C

• Altitude: ≤ 2500m

• Daily Average Relative Humidity: ≤ 95%

• Monthly Average Relative Humidity: ≤ 90%