step down transformer

1. Product introduction

This series of 35kV oil-immersed distribution transformers is a high-tech energy-saving product. It features high-quality cold-rolled silicon sheets, highly conductive, oxygen-free copper windings, and a fully sealed corrugated fuel tank, boasting the key advantages of silent operation, high reliability, and a long service life, while achieving extreme energy savings. Suitable for 35kV distribution networks at all levels, it is a benchmark energy-saving equipment for high-end power grid transformation, smart parks, residential buildings, and places with strict energy consumption and environmental requirements.

2. Technical parameters (customizable)

• Energy efficiency class: highly efficient and energy saving transformer

• Connection group: Dyn11

• Cooling method: ONAN (oil immersion self-cooling)

• Rated power: 50KVA-63000KVA

• Impedance voltage: 4% or 6.3% (according to the capacitance specification)

• Insulation class: class A

• Working environment: -25°C~+55°C, suitable for harsh outdoor conditions such as high humidity, strong salt spray, dust, etc. 

3. Main features

1. First-class energy efficiency, extreme energy saving

When using 3D three-dimensionalblack iron core or high qualityThe laminated iron core simultaneously reduces load loss. Long-term operation can significantly reduce the overall cost of electricity, and the return on investment is short, which is consistent with the national "double carbon" energy conservation policy.

2. Ultra-low noise, eco-friendly and environmentally friendly

By optimizing the design of magnetic circuits and the precision clamping process, even in densely populated residential areas, schools, hospitals and other places, “quiet operation” can be achieved, which greatly improves environmental friendliness.

3. Completely sealed, maintenance-free

Use vacuum oil injection technology and a fully sealed corrugated fuel tank to completely isolate the oil from air, preventing oxidation, moisture, and leaks. Enjoy the benefits of no hanger core, no oil changes, extremely low lifecycle maintenance costs, and high equipment availability.

4. Short circuit protection, high reliability

The coil uses high-strength oxygen-free copper wire and vacuum impregnation, offering exceptional mechanical strength and excellent resistance to sudden short circuits. It easily handles sudden voltage and load fluctuations in the electrical network, ensuring safe and stable operation.

5. Lower temperature rise, longer service life

Thanks to high-quality insulating materials and excellent craftsmanship, the temperature rise is reduced. The average temperature rise and fall is lower than traditional models, which actually delays the aging of the insulation. The structure's service life can exceed 30 years and it is capable of overloading by 20% in a short time.

6. Compact size, flexible installation

Optimized structure, lighter weight, smaller volume. Suitable for outdoor benches.substationswith boxes, internal distribution room and other installation options, reduces transportation and construction costs.

4. Application scenarios

1. Livelihoods of the elite and public buildings

• Large residential communities, first-tier hospitals, colleges and universities, luxury office buildings, large shopping malls.

Key livelihood projects that are noise sensitive and require extremely high power supply reliability.

2. National/provincial power grid transformation

• Urban and rural 35 kV power grids are being rebuilt, old grids are being intelligently modernized, and distribution networks are being strengthened.

• Construct a regional energy-saving demonstration project for electricity supply.

3. High-class industrial parks and enterprises

• New energy industrial parks, precision manufacturing parks, data centers and high-tech enterprises.

• Aim for high energy consumption scenarios with low losses and low operating and maintenance costs.

4. Infrastructure and special power supply

• Expressway service areas, railway stations, water conservation centers, cultural and tourist scenic spots, and coastal ports.

• Special power supply suitable for harsh environments such as high corrosion and high altitude.