The XGN15-12 series SF6 Ring Main Unit (RMU) is a new-generation medium voltage switchgear designed with SF6 load break switches as the main switching component and air insulation structure.
It features a compact, modular, and extendable design, making it ideal for modern ring network power distribution systems and terminal substations.
The switchgear operates in:
- Rated frequency: 50Hz
- Rated voltage: 12kV
It is widely used in urban and industrial power distribution networks, especially in cable ring systems and terminal power supply applications.
🔹 Key Features
✔ Compact & Modular Design
- Small footprint
- Expandable structure
- Flexible configuration
👉 Ideal for space-limited installations
✔ SF6 Load Break Switch Technology
- High reliability switching performance
- Excellent arc extinguishing capability
👉 Ensures safe and stable operation
✔ Metal-Enclosed Structure
- Fully enclosed armored cabinet
- Air-insulated internal structure
👉 Enhances operational safety
✔ Flexible Circuit Schemes
- Supports terminal and ring network wiring
- Adaptable to various system configurations
✔ Complete Component Integration
Includes:
- SF6 load break switch
- Earthing switch
- Fuse
- Current/voltage transformers
- Secondary instruments
👉 Meets diverse engineering requirements
✔ Reliable Mechanical Interlocking
- Built-in interlock system
- Fully meets “Five Prevention” safety requirements:
- Prevent misoperation
- Prevent live grounding
- Prevent incorrect switching sequence
✔ High Safety & Reliability
- Stable operation in medium voltage systems
- Suitable for continuous power supply environments
🔹 Structural Design
🔸 Cabinet Type
- Metal-clad enclosed structure
- Air-insulated compartments
- Compact and robust
🔸 Switching System
- SF6 load break switch as main switch
- Integrated earthing and protection system
🔸 Protection System
- Fuse protection for transformers
- Complete fault protection capability
🔸 Expandability
- Modular design allows future expansion
- Suitable for growing power systems
🔹 Applications
The XGN15-12 RMU is widely used in:
- Urban residential power distribution
- Secondary substations
- Switching stations
- Industrial and mining enterprises
- Commercial buildings
- Airports and metro systems
- Wind power projects
- Hospitals and stadiums
- Railways and tunnels
🔹 Advantages Summary
- Compact and space-saving design
- High reliability with SF6 switching technology
- Flexible and expandable configuration
- Complete safety interlocking system
- Suitable for ring network and terminal distribution
- Ideal for modern urban power systems
❓ FAQ
1️⃣ What is an SF6 Ring Main Unit?
An SF6 RMU is a medium voltage switchgear using SF6 gas load break switches for safe and reliable power distribution in ring network systems.
2️⃣ What voltage level is XGN15-12 suitable for?
It is designed for:
👉 12kV medium voltage power systems
3️⃣ Where is this RMU commonly used?
It is widely used in:
- Urban power grids
- Industrial plants
- Infrastructure projects
4️⃣ What are the advantages of SF6 switchgear?
- Excellent insulation performance
- Strong arc extinguishing ability
- High reliability and long service life
5️⃣ Can the XGN15-12 RMU be expanded?
Yes, it features a modular expandable design, allowing future system expansion.
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