Pad Mounted Three - Phase Transformer
Product Application
Its voltage level fits medium and low-voltage power grids. It is widely used in urban distribution, industrial zones, commercial areas, such as power supply for residential communities, shopping malls, and small factories. With excellent energy conversion and safety, it ensures stable and reliable power to meet various operational needs.
Product Parameters
The following is an example of an English technical parameter table for "Pad Mounted Three-phase Transformer", covering common core parameters:
|
Parameter |
Specification |
|
Type |
Pad Mounted, Three-phase, Oil-immersed / Dry-type (optional) |
|
Rated Power |
50 kVA – 2500 kVA |
|
Primary Voltage |
11 kV, 22 kV, 33 kV (±5% tolerance) |
|
Secondary Voltage |
400 V / 230 V (line-line / line-neutral, ±5% tolerance) |
|
Frequency |
50 Hz / 60 Hz |
|
Phase Connection |
Dyn11, YNd11 (standard); other connections available on request |
|
Impedance Voltage |
4% - 6% at rated power (IEC 60076 standard) |
|
No-load Loss |
≤ 150 W (for 500 kVA model, typical value) |
|
Load Loss |
≤ 2200 W (at rated current for 500 kVA model) |
|
Cooling Method |
ONAN (Oil Natural Air Natural) / AN (Air Natural) for dry-type |
|
Insulation Class |
Oil-immersed: Class A; Dry-type: Class F or H |
|
Protection Degree |
IP54 (dust-tight and protected against water splashing from all directions) |
|
Temperature Rise |
Oil-immersed: 60 K (top oil); 80 K (winding) |
|
Short Circuit Withstand |
25 kA for 2 seconds (primary); 100 kA for 1 second (secondary) |
|
Weight |
Approx. 850 kg (500 kVA oil-immersed model) |
|
Dimensions (L×W×H) |
1200 mm × 800 mm × 1000 mm (500 kVA model, approximate) |
Product Advantages
Enhanced Short-Circuit Tolerance
The pad mounted three-phase transformer has obtained international certification. It is specially designed to resist and reduce short-circuit impacts, protecting the electrical system's safety and stability.
Low Energy Loss Design
Using advanced design and high-quality materials, this transformer minimizes power loss, improving energy efficiency and lowering operational costs. The no-load loss is 10%-15% lower than the current industry standard, and the load loss is 5%-8% lower than the same standard.
Quiet Operational Performance
Its optimized structural design and noise-reducing components reduce operational noise, creating a quieter environment for surrounding areas.
Dependable Long-Term Operation
Through strict testing and quality control, the transformer ensures consistent performance, ideal for applications requiring continuous operation.
Product Features
Core Material and Structure
The transformer core is made of high-grade silicon steel sheets, stacked in a multi-layer structure. It has low loss, low noise, and strong short-circuit resistance.
Wide Application and Recognition
Widely used in urban and industrial power systems, the product has received positive feedback from users. Our specific models have passed authoritative certifications.
Tank Design
Sealed steel tank with anti-corrosion coating, featuring good waterproof and dustproof performance while maintaining a compact appearance.
Core Structure
Unique design with optimized magnetic circuit and firm connections.
The core and tank are firmly fixed to resist impact during transportation and installation.
Winding Design
Coils adopt a concentric structure, with high-insulation materials between coils and between coils and the core to enhance short-circuit resistance.
Advanced Manufacturing Processes
Employed processes include vacuum casting, precision winding, and seamless welding, ensuring product quality.
Normal service conditions
High Altitude
No more than 1000m;
high dust resistance
IP55
Environmental temperature:
The maximum temperature is +40℃;
The maximum monthly average temperature is +35℃;
The maximum annual average temperature is +25℃;
The outdoor minimum temperature is -30℃。
The waveform of power supply voltage is similar to sine wave.