step-down transformer

1. Product Introduction

This series of 35kV oil-immersed distribution transformers is a high-tech energy-saving product. The product is equipped with high-quality cold-rolled silicon steel sheets, high-conductivity oxygen-free copper windings, and a fully sealed corrugated fuel tank, featuring key advantages such as silent operation, high reliability, and long service life, while achieving extreme energy savings. Suitable for 35kV distribution networks at all levels, it serves as a benchmark energy-saving equipment for high-end power grid transformation, smart parks, residential buildings, and locations with stringent energy consumption and environmental requirements.

2. Technical parameters (customizable)

• Energy efficiency class: high-efficiency and energy-saving transformer

• Connection group: Dyn11

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

• Rated power: 50KVA-63000KVA

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

• Insulation class: Class A

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

3. Main Features

1. First-class energy efficiency, extreme energy saving

When using a three-dimensional three-dimensional iron core or high-quality laminated iron core, the load loss is synchronously reduced. Long-term operation can significantly reduce the comprehensive cost of electricity, and the payback period is short, in line with the national 'dual carbon' policy of energy conservation.

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

By optimizing the design of magnetic circuits and the precision clamping process, even in densely populated residential areas, schools, hospitals, and other locations, 'quiet operation' can be achieved, significantly enhancing environmental friendliness.

3. Fully sealed, maintenance-free

Using vacuum oil injection technology + a fully sealed corrugated fuel tank to completely isolate the oil from air contact, preventing oxidation, moisture, and leaks. Understand that there is no suspended core, no oil replacement, 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, possessing extremely high mechanical strength and excellent resistance to sudden short circuits. It calmly handles sharp voltage and load fluctuations in the power grid, operating safely and stably.

5. Lower temperature rise, long service life

Thanks to high-quality insulation materials and excellent craftsmanship, the temperature rise is reduced. The average temperature rise and drop are lower than those of traditional models, effectively delaying insulation aging. The structural service life can exceed 30 years, and it can handle a 20% overload for short periods.

6. Compact size, flexible installation

Optimized structure, lighter weight, smaller volume. Suitable for outdoor benches,substationswith enclosures, indoor distribution rooms, and other installation scenarios, reducing transportation and construction costs.

4. Application scenarios

1. Livelihood of elite individuals and public buildings

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

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

2. National/Provincial Power Grid Transformation

• Urban and rural 35 kV power grids are newly constructed, old power grids are intelligently upgraded, and distribution networks are strengthened.

• Build a regional energy-saving demonstration power supply project.

3. High-end 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 operational and technical costs.

4. Infrastructure and Special Power Supply

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

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