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China XGN-12 Solid-Insulated Fully Enclosed Ring Main Switchgear - Supplier & Factory Direct
🏗 Structural Features
The XGN-12 switchgear cabinet is constructed with high-quality cold-rolled steel sheets, treated with electrostatic powder coating for excellent corrosion resistance and long service life. The cabinet is divided into three independent compartments:
- ⚡ 1. Busbar Compartment– safely enclosed to ensure stable power transmission
- 🔌 2. Circuit Breaker / Load Switch Compartment– equipped with vacuum circuit breakers or load break switches
- 🔧 3. Cable Compartment– designed for easy cable connection and maintenance
All compartments are separated by grounded metal partitions to prevent fault propagation and improve operator safety.
✅ Key Functional Advantages
High Safety Level
Fully metal-clad structure with interlocking mechanisms prevents misoperation
Reliable Switching Performance
Uses vacuum circuit breakers with high breaking capacity
Compact Design
Space-saving solution suitable for indoor installations
Easy Operation & Maintenance
Clear mimic diagrams, indicator lights, and front-access design
Strong Environmental Adaptability
Suitable for harsh industrial environments
📊 Detailed Technical Parameters & Rated Electrical Parameters
Rated Voltage
12kV
Rated Insulation Voltage
12kV / 42kV
- Power frequency / Lightning impulse
Rated Frequency
50Hz / 60Hz
Rated Current
630A / 1250A / 1600A
- Optional
Rated Short-Time Withstand Current
20kA / 25kA / 31.5kA
- All at 4s duration
Rated Peak Withstand Current
50kA / 63kA / 80kA
⚡ Circuit Breaker Parameters
- Type: Vacuum Circuit Breaker (VCB)
- Breaking Capacity: Up to 31.5kA
- Mechanical Life: ≥10,000 operations
- Electrical Life: ≥50 operations at rated short-circuit current
🔒 Protection & Control
- Protection Functions: Overcurrent, short circuit, earth fault, overload
- Control Voltage: DC 110V / DC 220V / AC 220V (optional)
- Metering: Ammeter, voltmeter, energy meter (digital or analog)
- Indication: On/off status, fault indication, warning lights
🌡️ Environmental Conditions
- Installation Type: Indoor
-
Ambient Temperature:
- Maximum: +40°C
- Minimum: −10°C (can be customized to −25°C)
-
Relative Humidity:
- Daily average ≤95%
- Monthly average ≤90%
- Altitude: ≤1000m (custom design available for higher altitudes)
🔩 Mechanical & Installation Parameters
- Cabinet Structure: Metal-enclosed, floor-mounted
- Ingress Protection: IP4X (cabinet), IP2X (internal compartments)
- Cable Entry: Bottom or top entry (customizable)
- Busbar Material: Copper or aluminum (optional)
🏭 Typical Applications
- Medium voltage substations
- Industrial power distribution systems
- Commercial buildings and shopping centers
- Power plants and renewable energy projects
- Urban and rural distribution networks
💡 Conclusion
The XGN-12 high voltage switchgear is a mature, cost-effective, and internationally recognized solution for 12kV power distribution systems. With its robust construction, high safety standards, flexible configuration, and excellent electrical performance, it meets the demands of modern power networks and industrial users. It is an ideal choice for customers seeking reliable medium voltage switchgear for long-term operation.
🖼 Detail Pictures
❓ Frequently Asked Questions (FAQ)
What is the rated voltage of the XGN-12 switchgear?
The XGN-12 switchgear has a rated voltage of 12kV, with a rated insulation voltage of 12kV (power frequency) and 42kV (lightning impulse), making it suitable for medium voltage distribution systems.
What type of circuit breaker does the XGN-12 use?
The XGN-12 is equipped with a Vacuum Circuit Breaker (VCB) with a breaking capacity of up to 31.5kA, a mechanical life of ≥10,000 operations, and an electrical life of ≥50 operations at rated short-circuit current.
Is the XGN-12 switchgear suitable for outdoor installation?
No, the XGN-12 switchgear is designed for indoor installation. It is a floor-mounted, metal-enclosed cabinet with IP4X ingress protection for the cabinet body and IP2X for internal compartments.
What protection functions does the XGN-12 provide?
The XGN-12 supports multiple protection functions including overcurrent protection, short circuit protection, earth fault protection, and overload protection. It also features on/off status indication, fault indication, and warning lights.
Can the XGN-12 switchgear be customized for special environmental conditions?
Yes. The standard ambient temperature range is −10°C to +40°C, but it can be customized down to −25°C. It is also available in custom designs for altitudes above 1000m, and cable entry direction (top or bottom) is configurable.
What are the typical applications of the XGN-12 high voltage switchgear?
The XGN-12 is widely used in medium voltage substations, industrial power distribution systems, commercial buildings, power plants, renewable energy projects, and urban or rural distribution networks.