Wind Power Box Type Substation

As a major supplier of wind power transformers in the world, Sefon uses its mature transformer design and manufacturing technology to provide the wind power industry with complete wind step-up transformer solutions based on the characteristics and complexity of the wind power system industry. These solutions include high-voltage and large-capacity power transformers and shunt reactors for transmission, oil-immersed transformers and dry-type transformers for power generation, and transient voltage protection transformer solutions for operating conditions with frequent overvoltages. The products have many advantages such as safety, reliability, energy saving, and high efficiency, supporting the wind power industry to continuously improve its industry level.

The wind power box-type step-up substation sends the electricity generated by the wind turbine to the power grid or users, thereby completing the task of wind power generation. Sefon wind power box type transformer products install transformers, oil-immersed load switches and high-voltage fuses in the oil tank, use transformer oil as the insulation medium and heat dissipation medium of the entire product, and configure necessary electrical protection components on the low-voltage side. The product has the advantages of intelligence, reliable operation, small size, light weight and easy installation and use.

- Rated AC frequency 50Hz/60HZ, input voltage 0.69kV, maximum working voltage up to 40.5kV, lightning resistance 200kV

- Mainly used in: wind power generation industry

- Implementation standards: IEC60076, IEC61400, GB/T17467, etc.

> 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

Voltage ratio: 0.69kV/11kV, 0.69kV/20kV, 0.69kV/33kV, 0.69kV/35kV

- 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 750~1500kVA.

> 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

- 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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