Product Name
HXGN-12/630-25 Metal-Enclosed Ring Network Switchgear (Indoor Type)
1. Product Definition
The HXGN-12/630-25 metal-enclosed ring network switchgear is a compact medium-voltage power distribution equipment with a rated voltage of 12kV, rated current of 630A, and rated short-circuit breaking current of 25kA. Adopting a fixed design, this product integrates functions such as load switches, fuses, and earthing switches. It is specifically designed for application scenarios in modern power distribution networks such as ring network power supply and radial power supply.
2. Product Features
- High-current design: 630A rated current meets higher load requirements
- Dual protection: Load switch + fuse combination provides comprehensive short-circuit and overload protection
- Compact structure: Optimized metal-enclosed structure reduces floor space by 30%
- Visual operation: Three-position mechanical interlock with clear and reliable status indication
- Intelligent expansion: Optional FTU terminal to support distribution network automation
3. Main Structural Components
| Component | Function Description |
|---|---|
| Cabinet Structure | Divided by partitions into busbar compartment, switch compartment, cable compartment, and instrument compartment |
| Main Switch Unit | Three-position load switch (closing – opening – earthing) |
| Protection Unit | High-voltage current-limiting fuse (25kA breaking capacity) |
| Operating Mechanism | Manual spring energy storage operating mechanism (electric optional) |
| Monitoring System | Live display, fault indicator, intelligent terminal (optional) |
| Safety Interlock | Five-prevention mechanical interlock system |
4. Technical Parameters
| Item | Parameter |
|---|---|
| Rated Voltage | 12kV |
| Rated Current | 630A |
| Rated Short-Circuit Breaking Current | 25kA (fuse protection) |
| Rated Short-Time Withstand Current | 20kA/3s |
| Rated Peak Withstand Current | 50kA |
| Protection Class | IP3X (cabinet) |
| Mechanical Life | ≥3000 operations |
| Electrical Life | ≥100 operations |
5. Application Scenarios
- Industrial Parks: As ring network nodes in 10kV power distribution systems
- Commercial Centers: Main power distribution equipment for large commercial complexes
- Infrastructure: Power distribution systems for key facilities such as airports and subways
- New Energy: Grid-connection points of distributed photovoltaic power plants
- Urban Power Grid: Cable branch boxes, switching stations
6. Product Advantages
- Enhanced protection: 25kA short-circuit breaking capacity for more reliable protection
- High current carrying capacity: 630A rated current meets modern power distribution needs
- Intelligent upgrade: Reserved DTU/FTU interfaces to support distribution network automation transformation
- Easy maintenance: Modular design allows quick replacement of main components
- Economical and energy-efficient: Saves more than 30% of costs compared to circuit breaker solutions
7. Executive Standards
- GB/T 3906-2020 “3.6kV～40.5kV AC Metal-Enclosed Switchgear”
- GB/T 11022-2020 “Common Technical Requirements for High-Voltage Switchgear and Controlgear Standards”
- DL/T 404-2018 “3.6kV～40.5kV AC Metal-Enclosed Switchgear”
8. Optional Configurations and Expansion Modules
- Smart electricity meter / power quality analysis module
- RS485 communication interface (Modbus protocol)
- PLC controller, touch screen intelligent monitoring system
- UPS or diesel generator linkage interface
- Temperature and humidity sensor, heating and dehumidification device
- Leakage monitoring, fault indicator
9. Packaging and Delivery
- 100% electrical performance testing before leaving the factory
- Provide installation instructions, electrical schematics, and certificates of conformity
- Standard wooden box packaging, suitable for long-distance transportation
- Delivery cycle: 15-20 working days for standard configurations, please inquire separately for customized products
10. Installation and After-Sales Service
- Attached with installation guide, supporting remote video or on-site technical guidance
- Warranty period: 12 months
- Service method: Provide 7×24 hours technical support, support regular inspections and parts replacement
- Support OEM/ODM mass customization
11. Selection Recommendations and Notes
- System adaptability:
- Ensure that the system short-circuit current does not exceed 25kA
- Consider load growth and reserve margin
- Environmental adaptability:
- Normal ambient temperature: -15℃～+40℃
- Heaters and anti-condensation devices need to be selected for special environments
- Intelligence requirements:
- Choose the FTU interface version when distribution network automation is needed
- Consider remote monitoring function requirements
- Installation method:
- It is recommended to adopt the cable bottom-in and bottom-out method
- Ensure that the installation foundation meets the load-bearing requirements
Note: This product can be configured with load switches of different brands (such as FLN36-12D, FKN12-12D, etc.) and provides multiple options. For special needs (such as full insulation, intelligent monitoring, etc.), customized solutions can be provided. It is recommended to provide a detailed system single-line diagram and environmental parameters to recommend the optimal configuration scheme.
