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1. Enhanced Safety & Compliance
Comprehensive Anti-Misoperation Mechanisms: Equipped with advanced mechanical and electrical interlock systems, the switchgear fully complies with the “Five-Prevention” safety standards, effectively preventing common operational errors such as unauthorized access, incorrect switching, and grounding mistakes.
Strict Regulatory Adherence: Meeting the State Grid’s “Eighteen Anti-Accident Measures,” it ensures a minimum insulation clearance of ≥300mm between phases and to ground, eliminating internal insulation boards for enhanced safety and reliability.
High-Altitude Adaptability: All insulation components feature large creepage distances, enabling seamless operation without modifications at altitudes below 2,300 meters, making it ideal for installations in mountainous or high-altitude regions.
2. Rigorous Testing & Certification
Type-Tested Performance: Successfully passing all 型式试验 (type tests) conducted by the National High-Voltage Electrical Appliance Quality Supervision and Inspection Center at 3150A/40kA, the switchgear guarantees consistent performance under extreme electrical conditions.
3. Innovative Structural Design
Modular & Robust Construction: Built with a modular framework crafted from 2.0mm aluminum-zinc coated steel plates, the switchgear undergoes a dual bending process and is assembled with high-strength rivets, ensuring exceptional structural integrity and an aesthetically pleasing appearance.
Ergonomic & Secure Operation: The handle-designed door lock offers effortless operation, while its longitudinal bolting mechanism inside provides robust shear resistance, effectively withstanding internal short-circuit arc faults.
Optimized Electrical Performance: Through electric field equalization measures, the switchgear achieves an ultra-low partial discharge level of <3pc at 1.2 times the rated voltage (Ur), eliminating flashover risks.
Transparent Monitoring: Front and rear viewing windows on the doors allow operators to easily observe the circuit breaker’s open/close status, trolley position, mechanism energy storage state, earthing switch position, and cable connections. The 1680mm-wide instrument and cable doors feature a double-door design for enhanced accessibility and strength.
Parameter | Unit | Values |
Rated Voltage | kV | 40.5 |
Rated Current | A | 630/1000/1250/1600/2000/2500/3150 |
4s Thermal Stable Current (RMS) | kA | 25/31.5/40 |
Rated Dynamic Stable Current (RMS) | kA | 63/80/100 |
Cabinet Width | mm | 1400/1680 |
Cabinet Depth | mm | 2800/3200 |
Cabinet Height | mm | 2400/2600 |
· Urban Power Grids: Ideal for substations, switchgear rooms, and distribution centers in cities, ensuring reliable power supply for residential, commercial, and industrial areas.
· Industrial Facilities: Suited for factories, manufacturing plants, and industrial parks, providing robust electrical control and protection for medium-voltage systems.
· Renewable Energy Projects: Facilitates power management in solar farms, wind power plants, and microgrid systems, enabling seamless integration with the main grid.
· High-Altitude Installations: Specifically designed for mountainous regions or high-altitude areas where standard equipment may face performance challenges due to altitude.
Q1: How does the switchgear ensure operator safety?
A1: The switchgear features a “Five-Prevention” interlock system to prevent misoperations, maintains a ≥300mm insulation clearance as per State Grid standards, and has a low partial discharge level (<3pc) to avoid electrical hazards.
Q2: Can the switchgear operate at high altitudes?
A2: Yes, thanks to its large-creepage insulation components, the switchgear can operate without modifications at altitudes below 2,300 meters.
Q3: What is the advantage of the modular design?
A3: The modular structure allows for easy customization, quick component replacement, and scalability, reducing maintenance time and enhancing long-term flexibility for different power distribution needs.
Q4: How does the double-door design benefit users?
A4: The 1680mm-wide double-door design on instrument and cable compartments provides better access for installation, inspection, and maintenance, while also improving the overall structural strength of the cabinet.
Q5: Has the switchgear passed international safety certifications?
A5: While rigorously tested and compliant with Chinese national standards and State Grid requirements, its performance metrics align with international benchmarks, ensuring suitability for global medium-voltage projects.
