Product Overview
Sefon has mature photovoltaic step-up transformer design and manufacturing technology. Based on the characteristics and complexity of solar power generation systems, we provide complete step-up transformer solutions for the solar power generation industry, including oil-immersed and dry-type step-up transformers, and Power grid main transformer step-up power transformer. The product has many advantages such as safety, reliability, energy saving, high efficiency, etc., supporting the continuous improvement of the solar power generation industry.
- Special power distribution equipment that integrates the 0.27kV or 0.315kV voltage of the photovoltaic grid-connected inverter into the grid to output electric energy through the step-up transformer
- The high-voltage switchgear, transformer body, and protection fuses are concentrated in the oil tank, and the high-voltage/low-voltage prefabricated substation is set up with the low-voltage switch cabinet and corresponding auxiliary equipment.
- Mainly used for small and medium-sized solar power generation
- Implementation standards: IEC61850 series, GB/T17467, etc.
Product Advantages
> Leading technology
- Standard anti-corrosion and salt spray environment solutions to meet the harsh environmental requirements on site
- Compact structure, small footprint, easy installation
- Fully enclosed, fully insulated structure, safe and reliable operation
- Easy to operate, maintenance-free, low equipment cost
> Cabinet
- Made of cold-rolled high-quality hot-dip galvanized sheet
- Surface electrostatic spray treatment, no paint peeling off for 50 years
- Laser CNC equipment for cutting, drilling and bending to ensure processing accuracy
- The product structure is divided into three parts: high-voltage room, low-voltage room and transformer
- The box is mainly pre-installed with: lightning arrester, load switch, transformer tap changer, protection fuse, oil level thermometer, oil level gauge, pressure release valve and other accessories
- The low-voltage side is equipped with a main circuit breaker and an over-voltage protector, and can be designed and installed in a complete set of automated measurement and intelligent control systems
- The transformer is a low-loss oil-immersed transformer produced by ourself
> Supplementary materials
- High-quality tinned copper busbars with insulating sleeves
- Brand cables are used for secondary wiring
> Processing and assembly
- Assembly workers must be trained for at least 6 months before taking up the job
- Secondary wiring is cut by fully automatic equipment to ensure reliable wiring
- Electric tools are used for bolt reinforcement to ensure the appropriate torque
- Copper busbars are CNC punched and bent
- Various experimental tests before leaving the factory to ensure normal operation
Working Environment
- Altitude: 2000m
- Ambient temperature range: -45℃- +45℃
- Outdoor wind speed: ≤35m/s
- Relative humidity: daily average ≤95%, monthly average: ≤90%
- Installation location: Installed in a place without fire, explosion hazard, severe pollution, chemical corrosion and severe vibration.
- If the above normal usage environment conditions are exceeded, customers can customize solutions with our company.
- The above is applicable to 50Hz, 10/35kV wind power generation system. The rated capacity of the transformer is 500~1600kVA.
Ordering Instructions
> Customers are required to provide the following information:
- Main circuit scheme diagram and secondary circuit system diagram
- Auxiliary circuit electrical schematic diagram and terminal layout diagram
- Equipment layout diagram, combination diagram, plan layout diagram
- Model, specification, quantity of main electrical components of the equipment
- Inlet and outlet methods and cable specifications
- Equipment shell material and color
- Other special requirements can be negotiated with the manufacturer
Our advantages
- Authoritative certifications: ISO 9001, 14001, 45001, Green power, Green factory evaluation, Green supply chain management system, etc.
- Complete quality management system to ensure high-quality products
- Quick quotation, electrical design services can be provided
- Short delivery cycle, fastest 15 days for global delivery
- Complete after-sales service system allows customers to purchase goods without worries
- Customers are welcome to visit the factory for inspection and guidance
- Accept OEM/ODM
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