The SRM6-12/24 fully insulated gas-filled switchgear is an advanced electrical distribution solution widely used in 10KV/20KV power distribution systems. Designed to meet the highest industry standards, it has successfully passed the National High Voltage Electrical Testing Center’s type tests. This modular switchgear is available in fixed unit combinations and expandable unit designs, allowing flexible configuration to suit various applications in urban and rural power distribution networks.
Built with a completely sealed structure, the SRM6-12/24 switchgear houses all live components and switches inside a stainless steel enclosure, ensuring protection against environmental conditions. This design guarantees high reliability, operational safety, and a maintenance-free lifecycle. The switchgear can also be integrated into intelligent automation systems, providing smart monitoring and remote control functionalities.
Its modular design allows for customizable configurations, offering both non-expandable and expandable standard units to accommodate specific power distribution requirements. The SRM6-12/24 complies with GB and IEC standards and is built for long-term durability, with a design life exceeding 30 years, even in extreme indoor and outdoor environments ranging from -50°C to 40°C.
Key Features
- Complete Insulation & Sealing: Ensures high reliability and zero maintenance by housing live parts within a stainless steel gas-filled chamber.
- Modular & Expandable Design: Available in fixed or extendable configurations, offering flexible assembly based on power distribution needs.
- Environmental Resistance: Unaffected by dust, moisture, or extreme temperatures, ensuring stable performance in harsh conditions.
- Intelligent Automation Compatibility: Supports remote monitoring, smart grid integration, and automation features to optimize power management efficiency.
- Compact & Space-Saving: Ideal for urban and rural power systems, reducing installation footprint while maximizing operational efficiency.
- Advanced Safety Mechanisms: SF6 gas insulation, multi-point safety interlocks, and high protection levels prevent electrical hazards.
- Extended Service Life: Designed for over 30 years of reliable operation, meeting IEC and GB standards for high-voltage switchgear.
Operating Conditions
- Temperature Range: -25°C to 40°C (recommended daily average below 35°C)
- Altitude: ≤ 3000m (custom solutions available for higher altitudes)
- Humidity: ≤ 95% relative humidity (ideal: ≤ 90% average)
- Electromagnetic Interference: Suitable for environments with EMI below 1.6KV
Technical Specifications
| Parameter | Specification |
|---|---|
| Gas Pressure (SF6) | 1.4 bar (at 20°C) |
| Annual Gas Leakage Rate | ≤ 0.2% per year |
| Protection Level | IP67 |
| Stainless Steel Gas Chamber Thickness | 3.0mm |
| Service Life | 30+ years |
| Operating Temperature | -50°C to 40°C |
| Altitude | ≤ 2000m |
| Main Busbar | 400 mm² Cu |
| Ground Busbar | 150 mm² Cu |
| Front Panel Color | RAL7012 |
| Side Panel & Cable Cover | RAL7035 |
Available Configurations & Expansion Modules
The SRM6-12/24 switchgear is available in multiple configurations to accommodate specific operational needs, with various standard and custom expansion modules.
Standard Expansion Modules
- C: Load switch module (325mm width)
- De: Cable connection module with grounding switch (325mm width)
- D: Cable connection module without grounding switch (325mm width)
- F: Load switch + fuse combination module (325mm width)
- V: Vacuum switch module (325mm width)
- SL: Busbar sectionalizing switch module (load switch) (325mm width)
- SVBR: Busbar sectionalizing switch module (vacuum switch)
- SV: Busbar elevation module (650mm width)
- BE: Busbar grounding module (325mm width)
- M/PT: Metering module (12KV: 696mm width, 24KV: 900mm width)
- CB: Vacuum circuit breaker module (696mm width)
Applications
The SRM6-12/24 fully insulated gas-filled switchgear is widely used in:
- Urban & Rural Power Distribution Networks
- Industrial & Commercial Power Systems
- Renewable Energy Substations
- Underground Power Grids
- Smart Grid & Intelligent Power Automation Systems
- High-Altitude & Harsh Environment Installations
The SRM6-12/24 fully insulated gas-filled switchgear is a state-of-the-art power distribution solution, providing exceptional reliability, compact design, and advanced automation capabilities. Whether for urban grids, industrial power systems, or renewable energy projects, this high-voltage switchgear offers unmatched performance, longevity, and safety compliance.
For custom configurations, pricing, and technical support, contact us today to discuss your specific project needs.
Gas-insulated switchgear (GIS) like the SRM6-12/24 provides higher reliability, smaller footprint, and better protection against environmental factors than traditional air-insulated switchgear (AIS). GIS is completely sealed and insulated with SF6 gas, ensuring zero maintenance, extended lifespan, and superior safety. It is ideal for urban areas, high-humidity environments, and critical infrastructure where reliability is a priority.
Yes, the SRM6-12/24 is suitable for installations up to 3000m altitude. For sites above 3000m, customized solutions are available to adjust insulation properties and gas pressure to maintain optimal performance in high-altitude environments.
The SRM6-12/24 switchgear can be integrated with distribution automation systems (DTU/Watchdog) for real-time monitoring, fault detection, and remote control. Equipped with communication modules (fiber optic, GPRS, etc.), it enables seamless smart grid connectivity, allowing operators to monitor voltage, current, fault conditions, and system health remotely. This helps reduce downtime, enhance operational efficiency, and ensure quick fault isolation and power restoration.
