Power Prefabricated Box Type Substation for Solar Wind Compatible 50/60Hz Three-Phase MV&HV Transformers Renewable Energy
 Product Characteristics
 Vacuum circuit breaker or load switch + fuse (combined electrical appliance) technical solution can be used on the high voltage side of Huashi box. The electrical characteristics of the combined electrical structure ensure that when any phase fuse is blown, the load switch will trip to cut off power supply, allowing safe fuse replacement before main switch closure.
 The vacuum circuit breaker or load switch + fuse combination features mechanical interlocks to prevent misoperation, with signal transmission capability for real-time monitoring of operating status and remote control functionality.
  Product Parameters
    | Type & Model | S11-5000-33/0.69 | Insulation Level | Class A | 
  | Rated Capacity | 5000kVA | High-Voltage Side | 
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  | Rated Voltage (HV / LV) | 33kv/0.69kv | Lightning Impulse Withstand (peak) | 200kv | 
  | Rated Current (HV / LV) | 87.5A /4183.7 A | Short-Duration Power-Frequency Withstand (r.m.s.) | 85kv | 
  | Voltage Ratio | ±2 × 2.5 % | Lightning Impulse Withstand (peak) | 
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  | Short-Circuit Impedance | 7% | Short-Duration Power-Frequency Withstand (r.m.s.) | 5kv | 
  | Vector Group | Dyn11 | 
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  | Rated Frequency | 50Hz | 
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  | Cooling Method | ONAN | 
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  | No-Load Loss | ≤ 3970W (+15%) | Overall Dimensions (L × W × H) | 2650 mm × 2900 mm × 2750 mm | 
  | Load Loss | ≤ 39018W (+15%) | Estimated Total Mass | 10.7t | 
  | Sound Pressure Level | ≤ 77 dB(A) | 
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  | No-Load Current | 0.50% | 
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   Features & Benefits
    | Feature | Advantage | Benefit | 
  | Integrated Design | Combines inverter, transformer, and HV distribution | Fewer devices, saves space and installation time | 
  | Modular Structure | Standardized components for quick delivery and easy O&M | Lower O&M costs, higher reliability | 
  | High-efficiency Inverter | >98.5% conversion efficiency | Minimizes power loss, improves energy conversion efficiency | 
  | Smart Monitoring System | Real-time monitoring & remote control | Efficient management and fault alerts | 
  | Comprehensive Protection | Over-voltage, over-current, short-circuit protection | Ensures safe operation for both equipment and personnel | 
  | All-weather Adaptability | IP54 rating, works in harsh environments | Applicable in deserts, plateaus and more | 
  
  Our prefabricated, modular substation solutions reduce project construction time by 60% compared to traditional methods, delivering faster, more stable, and smarter power supply.
 Complete factory production in 4-6 weeks with minimal onsite work required - just foundation leveling, hoisting, and cable connection for power availability within one week.
   Quality Assurance
  - Full-condition simulation pre-commissioning with over 100 tests including protection transmission and communication point-to-point testing
- Military-grade protective enclosure with high-strength steel structure and C5-level corrosion protection (hot-dip galvanizing)
- IP54 protection rating with resistance to salt spray, wind, sand, and condensation
- Intelligent internal environment control with industrial air conditioning, fans, electric heaters, and gas fire protection systems