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12kV SF6 Gas Insulated Ring Main Unit RMU Metal Enclosed For Urban Power Grids
Product Details:
| Place of Origin: | China |
| Brand Name: | Dong Sheng Yuan |
| Model Number: | 10kV semi-insulated ring main unit (XGN15-12 ring main unit) |
Payment & Shipping Terms:
| Delivery Time: | T+30 |
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| Payment Terms: | TT |
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Detail Information |
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| Enclosure Type: | Metal-enclosed | Quality: | High Quality |
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| Applicant: | Indoor | Ambient Air Temperature: | -30℃～+40℃ |
| Voltage Level: | Medium Voltage | ||
| Highlight: | Metal Enclosed Ring Main Unit,SF6 Gas Insulated RMU,Sf6 Rmu For Urban Power Grids |
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Product Description
10kV Semi-Insulated Ring Main Unit (XGN15-12 Ring Main Unit)
The XGN15-12 Ring Main Unit (RMU) is a compact, modular gas-insulated switchgear designed for 12kV medium-voltage distribution networks. Using SF6 gas for insulation and arc extinguishing, this fully enclosed unit offers exceptional safety, reliability, and a decades-long, maintenance-free service life.
Why Choose XGN15-12? Addressing Your Distribution Pain Points
Are you facing these common challenges in your urban or industrial power projects?
- Limited Space: Traditional switchgear is often too bulky for confined urban distribution rooms or underground facilities.
- High Maintenance Costs: Frequent inspections and upkeep are time-consuming and drive up operational expenses.
- Safety Risks: Exposed equipment can be vulnerable to environmental factors, posing a risk of arc faults.
The XGN15-12 RMU was engineered to solve these very problems. Its compact design saves up to 40% of footprint, its fully sealed gas tank offers maximum protection, and its maintenance-free nature significantly reduces your long-term operating costs.
Core Functions and Technical Highlights
- Rated Voltage: 12kV
- Modular Unit Design: Flexible feeder combinations can be customized to meet project needs.
- SF6 Gas Insulation: A fully sealed gas tank ensures a long service life.
- Three-Position Switch: Integrates load break, disconnector, and earth functions with reliable mechanical interlock.
- High Safety: Suitable for various indoor installations, ensuring safe operation even in confined spaces.
Product Details and Craftsmanship Highlights
- Thickened Cold-Rolled Steel Cabinet: Made using a thickened cold-working sheet metal process, the cabinet is strong and solid with reliable quality. It is anti-corrosion and anti-rust, ensuring the equipment is durable and resistant to external environmental factors.
- Standardized Wiring: Wiring is performed by professional electrical engineers, ensuring a stable structure and a neat, clear layout that greatly facilitates future maintenance.
- User-Friendly Design: A multi-hole cooling design effectively lowers the internal cabinet temperature to prevent accidents.
- Pop-up Door Lock: Features a waterproof design to better protect the lock core from corrosion.
- Intelligent Detection Instruments: Conveniently allows for real-time observation and monitoring of current and voltage values.
- Strict Production Testing: Products undergo layer-by-layer testing before leaving the factory, ensuring every unit meets high standards.
Technical Specifications
| No. | Parameter | Unit | Value |
|---|---|---|---|
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Main Busbar Rated Current / Max Fuse Rated Current | A | 630, 125 |
| 4 | Main Circuit, Earthing Circuit Rated Short-time Withstand Current | kA/s | 20, 3 |
| 5 | Main Circuit, Earthing Circuit, Rated Peak Withstand Current | kA | 50 |
| 6 | Main Circuit, Earthing Circuit,t Rated Short-circuit Making Current | kA | 50 |
| 7 | Load Switch Breaking Capacity Operations | Times | 100 |
| 8 | Fuse Breaking Current | kA | 31.5, 40 |
| 9 | Rated Closed-loop Breaking Current | A | 630 |
| 10 | Rated Transfer Current | A | 1600 |
| 11 | Mechanical Life | Times | 2000 |
| 12 | 1min Power Frequency Withstand Voltage (Peak) Phase-to-Phase, Phase-to-Ground / Across Isolation Gap | kV | 42, 48 |
| 13 | Lightning Impulse Withstand Voltage (Peak) Phase-to-Phase, Phase-to-Ground / Across Isolation Gap | kV | 75, 85 |
| 14 | Secondary Circuit 1min Power Frequency Withstand Voltage | kV | 2 |
| 15 | Protection Degree | - | IP3X |
Technical Data for Optional Functional Modules
Thanks to the XGN15-12's modular design, various functional units can be flexibly configured to meet project requirements.
SFL Module Technical Data
| Parameter | Unit | 12kV | 17.5kV | 24kV |
|---|---|---|---|---|
| Rated Voltage | kV | 12 | 17.5 | 24 |
| Impulse Withstand Voltage | kV | 75 | 95 | 125 |
| One-Minute Power Frequency Withstand Voltage | kV | 28 | 38 | 50 |
| Rated Current | A | 630 | 630 | 630 |
| Making Capacity | kA | 50 | 50 | 40 |
| Thermal Withstand Current | kA/s | 20, 3 | -- | -- |
| Breaking Capacity | A | 1700 | -- | -- |
| Max Fuse | A | 125 | -- | -- |
| Pole Pitch | mm | 210 | 210 | 210 |
VD4-S Module Technical Data
| Parameter | Unit | 12kV | 17.5kV | 24kV |
|---|---|---|---|---|
| Rated Voltage | kV | 12 | 17.5 | 24 |
| Impulse Withstand Voltage | kV | 75 | 95 | 125 |
| Power Frequency Withstand Voltage | kV | 28 | 38 | 50 |
| Rated Current | A | 630 | 630 | 630 |
| Thermal Withstand Current | kA/s | 20, 3 | -- | -- |
| Pole Pitch | mm | 210 | 210 | 210 |
Applications
This product is suitable for AC 50Hz, 12kV power systems and is widely used for industrial and civil cable ring networks and terminal supply. It is especially ideal for the following locations:
- Small Secondary Substations
- Switching Stations
- Urban Residential Area Distribution
- Industrial and Mining Enterprises
- Shopping Malls, Airports, and Metro Systems
- Wind Power Generation, Hospitals, and Stadiums
- Railways
Frequently Asked Questions (FAQ)
1. What is the difference between the XGN15-12 RMU and traditional Air Insulated Switchgear (AIS)?
Compared to traditional AIS, the XGN15-12 RMU is more compact, saving up to 40% on installation space. Its fully sealed gas insulation provides higher safety, is maintenance-free, and significantly reduces long-term operating costs.
2. Is the XGN15-12 suitable for both ring and radial networks?
Yes. Its modular design supports both configurations, allowing it to adapt to different network topologies flexibly.
3. What is the SF6 gas pressure?
The units are factory pre-filled to 0.04-0.06 MPa, with a hermetically sealed design that ensures a lifetime of no gas refilling.
4. Can it integrate with a vacuum circuit breaker?
Yes. A breaker module can be added to the RMU for applications like transformer protection.
5. What is the cabinet's protection level?
The cabinet has an IP3X protection rating, while the SF6 gas tank has an IP67 rating, ensuring maximum protection from the external environment.
Get More Information
We provide a one-stop solution for your project. Contact our engineering team today for the professional support you need.
- Request a Free Quote: Get a custom quote tailored to your project requirements.
- Download Technical Data: Access detailed product brochures and technical specifications.
- Schedule an Expert Consultation: Speak one-on-one with our engineers to get all your technical questions answered.
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