XGN15-24 630A 24kV SF6 Gas Insulated Ring Main Unit
The XGN15-24 630A is a gas-insulated metal-enclosed ring main unit (RMU) designed for reliable power distribution in urban networks and industrial applications. With a compact, fully enclosed structure and SF6 insulation, it offers maintenance-free operation and high safety standards.
Key Selling Points
- SF6 Insulated, Maintenance-Free The sealed gas tank uses SF6 gas, ensuring zero maintenance and a long service life, reducing operational costs.
- Compact and Fully Enclosed The fully welded 304 stainless steel tank and compact design save space and provide superior protection, suitable for indoor installations.
- High Rated Current Rated current of 630A meets the demands of ring main and terminal distribution systems, ensuring stable power supply.
- Robust Mechanical Life Load switch rated for over 5,000 operations, earthing switch over 2,000, guaranteeing long-term reliability.
- IP67 Internal Protection The gas tank is protected to IP67, preventing dust and water ingress, enhancing durability in harsh environments.
- Proven Quality Management Manufactured under ISO9001:2015 quality system, ensuring consistent product quality and traceability.
Technical Specifications
| Rated Voltage | 24kV |
| Rated Frequency | 50Hz |
| Rated Current | 630A |
| Rated Short-time Withstand Current (4s) | 20kA |
| Rated Peak Withstand Current | 50kA |
| Rated Short-circuit Breaking Current | 20kA |
| Rated Short-circuit Making Current | 50kA |
| Insulating Medium | SF6 gas |
| Rated Filling Pressure (20℃) | 0.04～0.06MPa (gauge) |
| Minimum Operating Pressure | 0.02MPa |
| Annual Gas Leakage Rate | ≤0.5% |
| Power Frequency Withstand Voltage | 65kV/1min (phase-to-earth/phase-to-phase) |
| Lightning Impulse Withstand Voltage | 125kV (peak) |
| Mechanical Operating Life | Load switch ≥5,000 operations; Earthing switch ≥2,000 operations |
| Protection Degree | Inside gas tank: IP67; Outside cabinet: IP34D |
| Ambient Temperature | -25℃ to +40℃ |
| Altitude | ≤2000m |
| Relative Humidity | Daily avg ≤95%, monthly avg ≤90% |
Models and Options
The XGN15-24 series offers rated current options of 630A and 1250A, with short-time withstand current ratings of 20kA or 25kA. Operating mode can be manual spring or electric (optional).
Materials and Structure
The cabinet frame uses galvalume steel or hot-dip galvanized steel sheet. The sealed gas tank is fully welded 304 stainless steel. Conductive parts are T2 pure copper with silver/tin plating. Insulating supports use epoxy resin and SMC. Sealing rings are nitrile/silicone rubber. Fasteners are stainless steel.
Applications
Widely used in urban power grid construction and renovation, ring main power supply, terminal distribution systems, prefabricated substations, and switching stations. Suitable for indoor installations in power distribution rooms, industrial plants, and commercial buildings.
Customization
Customized versions for high altitude (>2000m) are available. OEM and ODM options supported.
FAQ
Q1: What is the standard rated current?
Available options are 630A and 1250A.
Q2: Can the unit be operated electrically?
Yes, electric operation is optional.
Q3: What is the protection degree?
Inside gas tank IP67, outside cabinet IP34D.
Q4: Is it suitable for outdoor installation?
It is designed for indoor installation.
Q5: What is the annual gas leakage rate?
It is ≤0.5%.
Q6: Does it come with certificates?
Manufactured under ISO9001:2015 quality system.
Q7: Can it be customized for high altitude?
Yes, a customized version for >2000m is available.
Inquiry Information
MOQ: 1 unit. Delivery: FOB Shanghai. Payment: 30% deposit by T/T, balance before shipment. Acceptance: pre-shipment test, third-party inspection (SGS) available.
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Alt: 24kV SF6 gas insulated ring main unit XGN15-24 630A
