Customization Xgn15-12 Sf6 Ring Main Unit Fixed Type Metal-Enclosed Indoor Switchgear 12kv for Power Distribution
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XGN15-12
Product Details
| Customization: | Available |
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| Standard: | GB, EN, China GB Code, JIS Code, TEMA, ASME |
| Surface Treatment: | Powder Coated |
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Basic Info.
- Model NO.
- XGN15-12
- Energy Source
- Electric Arc
- Material
- Aluminium Profile
- Transport Package
- Box
- Trademark
- CHANGJIANG
- Origin
- China
- HS Code
- 85372090
- Production Capacity
- 10000
Packaging & Delivery
- Package Size
- 1200.00cm * 600.00cm * 2000.00cm
- Package Gross Weight
- 100.000kg
Product Description
Product Overview
The XGN15-12 (also known as HXGN15-12) modular SF6 ring main unit (RMU) is a new generation of metal-enclosed switchgear with SF6 load break switch as the main switching device, while the entire cabinet adopts air insulation. It is suitable for power distribution automation with compact and expandable features. This product has been successfully applied in projects such as China Construction Bank, demonstrating its reliable performance in critical commercial facilities-.
The RMU is equipped with "Make-Break-Earth" three-position load break switch with reliable interlocking, high insulation strength at the breaking gap, and large creepage distance design. Advanced sensor technology and the latest protection relays are integrated, making it a new generation of high-voltage switchgear for urban power grid construction-1.
Key Advantages
SF6 Gas Insulated, Fully Sealed & Maintenance-Free
The main switch adopts SF6 gas as the insulating and arc-extinguishing medium. The load break switch is a three-position (Make-Break-Earth) type with excellent electrical and mechanical properties, minimally affected by environment and climate. It features maintenance-free operation and flexible combination methods.
Compact & Modular Design, Space-Saving
The switchgear adopts unit-type modular design with expandable configuration. The cabinet is assembled using imported aluminum-zinc coated steel sheets processed by high-precision CNC equipment, featuring small footprint, light weight, and flexible installation. The volume is significantly smaller than conventional switchgear, saving valuable floor space-33.
Three-Position Load Break Switch with "Five-Prevention" Interlocking
Equipped with integrated three-position load break switch (Make-Break-Earth) with reliable mechanical interlocking achieving full "five-prevention" functions: preventing opening/closing of main switch under load, preventing accidental entry into live compartments, preventing incorrect opening/closing of main switch, preventing closing of earthing switch when live, and preventing power transmission when earthing switch is in the closed position. The breaking gap has high insulation strength with large creepage distance design-1.
Modular Configuration Flexibility
The RMU can be composed of various functional modules including load switch unit (C-unit), load switch-fuse combination electrical unit (F-unit), vacuum circuit breaker unit (V-unit/CB-unit), and busbar incoming unit. This modular design meets diverse application requirements for both ring network and terminal power supply-17.
Advanced Sensor Technology & Protection Relays
The adoption of sensor technology and the latest protection relays, combined with unique technical performance and lightweight flexible assembly solutions, fully meets the changing demands of the market. The switchgear is suitable for power distribution automation applications-37.
Reliable Pressure Relief Design
The cabinet features two pressure relief points on the rear panel - one for the cable compartment and another for the load switch and busbar compartment, ensuring rapid pressure release in case of internal arcing to protect personnel safety-33.
High Environmental Adaptability
Working temperature range: -25°C to +40°C; altitude up to 2000m; relative humidity ≤95%. The SF6 gas-filled load switch chamber is fully sealed, effectively preventing condensation, corrosion, and ingress of dust or small animals-1.
Clear Operation Interface & Electric Operation Option
The clear and intuitive design ensures simple and direct operation. Both manual and electric operation modes are available with remote control functionality upon request.
Technical Specifications
Technical Data Source: Based on public product specifications and industry standards-37-16.
Standards & Certifications
The XGN15-12 RMU is designed and manufactured in accordance with the following standards:
Application Scenarios
XGN15-12 RMU is widely used in AC 50Hz, 12kV power systems, especially suitable for cable ring networks and power supply terminal projects. Typical applications include:
The XGN15-12 (also known as HXGN15-12) modular SF6 ring main unit (RMU) is a new generation of metal-enclosed switchgear with SF6 load break switch as the main switching device, while the entire cabinet adopts air insulation. It is suitable for power distribution automation with compact and expandable features. This product has been successfully applied in projects such as China Construction Bank, demonstrating its reliable performance in critical commercial facilities-.
The RMU is equipped with "Make-Break-Earth" three-position load break switch with reliable interlocking, high insulation strength at the breaking gap, and large creepage distance design. Advanced sensor technology and the latest protection relays are integrated, making it a new generation of high-voltage switchgear for urban power grid construction-1.
Key Advantages
SF6 Gas Insulated, Fully Sealed & Maintenance-Free
The main switch adopts SF6 gas as the insulating and arc-extinguishing medium. The load break switch is a three-position (Make-Break-Earth) type with excellent electrical and mechanical properties, minimally affected by environment and climate. It features maintenance-free operation and flexible combination methods.
Compact & Modular Design, Space-Saving
The switchgear adopts unit-type modular design with expandable configuration. The cabinet is assembled using imported aluminum-zinc coated steel sheets processed by high-precision CNC equipment, featuring small footprint, light weight, and flexible installation. The volume is significantly smaller than conventional switchgear, saving valuable floor space-33.
Three-Position Load Break Switch with "Five-Prevention" Interlocking
Equipped with integrated three-position load break switch (Make-Break-Earth) with reliable mechanical interlocking achieving full "five-prevention" functions: preventing opening/closing of main switch under load, preventing accidental entry into live compartments, preventing incorrect opening/closing of main switch, preventing closing of earthing switch when live, and preventing power transmission when earthing switch is in the closed position. The breaking gap has high insulation strength with large creepage distance design-1.
Modular Configuration Flexibility
The RMU can be composed of various functional modules including load switch unit (C-unit), load switch-fuse combination electrical unit (F-unit), vacuum circuit breaker unit (V-unit/CB-unit), and busbar incoming unit. This modular design meets diverse application requirements for both ring network and terminal power supply-17.
Advanced Sensor Technology & Protection Relays
The adoption of sensor technology and the latest protection relays, combined with unique technical performance and lightweight flexible assembly solutions, fully meets the changing demands of the market. The switchgear is suitable for power distribution automation applications-37.
Reliable Pressure Relief Design
The cabinet features two pressure relief points on the rear panel - one for the cable compartment and another for the load switch and busbar compartment, ensuring rapid pressure release in case of internal arcing to protect personnel safety-33.
High Environmental Adaptability
Working temperature range: -25°C to +40°C; altitude up to 2000m; relative humidity ≤95%. The SF6 gas-filled load switch chamber is fully sealed, effectively preventing condensation, corrosion, and ingress of dust or small animals-1.
Clear Operation Interface & Electric Operation Option
The clear and intuitive design ensures simple and direct operation. Both manual and electric operation modes are available with remote control functionality upon request.
Technical Specifications
| Parameter | Value |
| Rated Voltage | 12 kV |
| Rated Frequency | 50 Hz |
| Rated Current (Load Switch Unit / Fuse Unit) | 630A / 125A |
| Rated Short-circuit Making Current (Peak) | 50 kA (load switch unit) / 80 kA (fuse unit) |
| Rated Short-time Withstand Current (3 sec) | 20 kA |
| 1min Power Frequency Withstand Voltage | 42 kV (phase-to-phase/phase-to-earth) / 48 kV (isolating distance) |
| Lightning Impulse Withstand Voltage | 75 kV (peak, phase-to-phase/phase-to-earth) / 85 kV (peak, isolating distance) |
| Rated Closed-loop Breaking Current | 630 A |
| Rated Cable-charging Breaking Current | 135 A |
| Rated Transfer Current | 1700-1750 A |
| Rated SF6 Gas Pressure (20°C gauge) | 0.04 MPa |
| Mechanical Endurance (Load Break Switch / Earthing Switch) | 5000 / 3000 cycles |
| Enclosure Protection Rating | IP3X-IP4X |
| Overall Dimensions (W×D×H) | 800×940×2000 mm (approx., varies by configuration) |
| Altitude | ≤1000 m (≤2000 m optional) |
| Ambient Temperature | -25°C to +40°C |
Standards & Certifications
The XGN15-12 RMU is designed and manufactured in accordance with the following standards:
- IEC 60298 / IEC 62271-200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
- GB/T 3906: AC metal-enclosed switchgear and controlgear for rated voltages of 3.6 kV to 40.5 kV
- GB 3804: High-voltage AC load break switches
- GB 16926: High-voltage AC load break switch-fuse combinations
- DL/T 404: Technical conditions for ordering indoor AC high-voltage switchgear
Application Scenarios
XGN15-12 RMU is widely used in AC 50Hz, 12kV power systems, especially suitable for cable ring networks and power supply terminal projects. Typical applications include:
- Commercial facilities: Banking and financial institutions (e.g., China Construction Bank)
- Urban residential power distribution: Residential community substations
- Small secondary substations & switching stations
- Industrial and mining enterprises
- Commercial complexes: Shopping malls, supermarkets
- Transportation infrastructure: Airports, subways, railways, tunnels
- Public facilities: Hospitals, stadiums, schools
- Renewable energy: Wind power generation
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