Product Overview
The prefab substation is an invisible prefabricated substation that completely seals and buries the core equipment, including transformers, high voltage and low voltage transformers, underground, leaving only a small landscaped operating cabin on the surface. It achieves voltage conversion and power distribution from 10kV/6kV to 0.4kV and features IP68 waterproof rating, fully sealed corrosion protection, ultra low noise, no ground space occupation, and environmental beautification. It is widely used in urban roads, residential areas, scenic spots, parks, commercial plazas, underground spaces, and other places with high requirements for both aesthetics and safety. It can operate under immersion for short periods and is suitable for humid, rainy, and flooded environments.
Product Advantages
• Fully or partially buried design, minimizing above ground footprint and aesthetically pleasing, seamlessly integrating with greenery, light boxes, and landscaping stones.
• IP68 protection for the buried enclosure, waterproof, floodproof, rodent proof, termite proof, corrosion resistant, and pressure resistant, requiring no long term maintenance.
• Low noise and low radiation, completely eliminating NIMBY (Not In My Backyard) issues.
• Factory pre installed, quick on site installation, simple foundation, and short construction period.
• Fully insulated and fully sealed structure, no exposed live parts, ensuring safer operation.
• Stable underground temperature field, excellent heat dissipation, strong overload capacity, and longer lifespan.
Product Features
|
Characteristic |
Product Technology Advantages |
|
Ultra high protection |
The underground compartment has an IP68 rating and can operate submerged in water; the surface compartment has an IP54 rating. |
|
Fully sealed and corrosion resistant |
Stainless steel/fiberglass enclosure, resistant to acids and alkalis, salt spray, and leak proof. |
|
Ultra low noise |
Buried underground for noise reduction, noise level ≤55dB |
|
Safe and reliable |
Fully insulated, fully shielded elbow plug, protecting against electric shock and misoperation. |
|
Intelligent temperature control |
Automatic dehumidification, heat dissipation, and drainage make it suitable for damp underground environments. |
|
Landscape adaptation |
The ground compartment can be designed as a light box, imitation stone, or green plant, without damaging the environment. |
Technical Specifications
|
Parameter |
Project |
Typical values / range |
|
Basic parameters |
Rated voltage (high voltage side) |
6kV,10kV |
|
Rated voltage (low voltage side) |
0.4kV |
|
|
Rated frequency |
50Hz / 60Hz |
|
|
Number of phases |
Three phase |
|
|
Rated capacity (kVA) |
30,50,100,315,500,630,800,1000,1250,1600,2000 |
|
|
Cooling method |
ONAN (oil immersed and self cooled) |
|
|
Connection and tap |
Connection Group |
Dyn11,Yyn0 |
|
Voltage regulation method |
No excitation voltage regulation |
|
|
Tap range |
±5%,±2×2.5% |
|
|
Protection and Structure |
Protection Configuration |
Overcurrent, short circuit, overload, lightning protection, temperature control, dehumidification |
|
High voltage scheme |
Fully insulated load switch, double fuse protection |
|
|
Environment and Protection |
underground cabin protection level |
IP68 |
|
Ground compartment protection level |
IP54 |
|
|
Ambient temperature |
40℃ ～ +55℃ |
|
|
altitude |
≤1000m (High altitude version available upon request) |
|
|
Applicable Standards |
GB/T 17467,IEC 60076,IEC 62271 |
Why Choose Union Power
• Complete Set of Accessories: We provide accessories such as fault indicators and cable terminals.
• Professional Installation Service: Equipped with certified high voltage electricians and senior engineers, supporting on site professional installation and remote online installation guidance.
• Commissioning and Testing: Possesses advanced and complete electrical testing equipment, performed by professional operators to ensure safe power supply.
• After Sales Support: 24/7 online technical support; on site after sales service promises arrival within 5 days (for replacement of special components, the arrival time of the component shall prevail).
• Customization Capability: Provides professional one stop customized solutions based on specific needs and application scenarios.
• Delivery Guarantee: Multiple production bases and strict quality control ensure rapid delivery and effectively avoid supply chain disruption risks.
Product Information and Certificates
We provide the following complete technical documentation and quality documents:
• Material Safety Data Sheet (MSDS)
• Factory Test Report
• Certificate of Conformity
• Product Certificate
• Product Installation and Operation Manual
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