XGN15 High Voltage Air Insulated SF6 RMU

Product Overview:

The XGN15 high voltage air insulated SF6 Ring Main Unit (RMU) is designed for use in medium voltage electrical distribution systems. It provides reliable and efficient protection, control, and distribution of electrical power. This RMU is ideal for applications in urban and industrial power grids, ensuring the safety and stability of the electrical network.

Structural Features:

1. Air Insulated Design:
   • Utilizes air insulation combined with SF6 gas to provide high dielectric strength and arc quenching capabilities.
2. Compact and Modular:
   • Features a compact, modular design that allows for easy installation and integration into various switchgear configurations.
3. SF6 Gas Insulation:
   • The use of SF6 gas ensures excellent insulation properties and reliable arc extinguishing performance.
4. High-Quality Construction:
   • Built with robust materials to withstand harsh environmental conditions and mechanical stress, ensuring long-term durability.
5. Interlocking Mechanism:
   • Equipped with reliable interlocking mechanisms to prevent incorrect operations and enhance safety.

Installation Method:

1. Site Preparation:
   • Ensure the installation site is clean, dry, and free from dust and other contaminants.
2. Mounting:
   • Securely mount the RMU on a stable and rigid surface using the provided mounting brackets and hardware.
3. Electrical Connections:
   • Connect the incoming and outgoing cables to the designated terminals, ensuring tight and secure connections. Follow the wiring diagram provided with the RMU for correct electrical connections.
4. Grounding:
   • Ensure proper grounding of the RMU to prevent electrical hazards. Connect the grounding terminal to the panel or switchgear’s grounding busbar.
5. Testing:
   • After installation, perform insulation resistance and continuity tests to ensure proper installation and functionality. Verify the operation of the RMU by performing open and close operations several times.

Applicable Environmental Conditions:

1. Temperature Range:
   • Operating temperature: -25°C to +40°C
   • Storage temperature: -30°C
2. Altitude:
   • Suitable for altitudes up to 1000 meters.
3. Humidity:
   • Daily average relative humidity: ≤95%
   • Monthly average relative humidity: ≤90%
4. Water Vapor Pressure:
   • Daily average: ≤2.2×10³MPa
   • Monthly average: ≤1.8×10³MPa
5. Seismic Resistance:
   • Capable of withstanding earthquakes with a grade less than Degree 8.
6. Air Quality:
   • The ambient air should not be significantly polluted by dust, smoke, corrosive or flammable gases, vapors, or salt.

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