step-up transformer

1. Product introduction

The 35kV series oil-immersed transformer is an ultra-high-efficiency product that is currently the best-performing transformer for 35kV voltage levels. Equipped with ultra-high-permeability and low-loss cold-rolled silicon steel sheets, oxygen-free copper windings, optimized magnetic circuit design, and fully sealed, corrosion-resistant heat dissipation systems, this product provides comprehensive improvements in loss control, operating noise reduction, mechanical strength, and service life. It serves as a primary energy-saving solution for high-end applications, including grid modernization, renewable energy integration, industrial power supply, data centers, and urban infrastructure projects.

2. Technical characteristics (customizable)

Product Type: Three-phase double or three-phase three-winding Rated Capacity: 50kVA - 63,000kVA Voltage Regulation Mode: On-load voltage regulation, off-loop voltage regulation, or motorized off-loop voltage on high-voltage side Cooling Mode: ONAN / ONAF Connection Symbol: Dyn11 / YNd11 (Industrial Standard) Energy Efficiency Level: High-efficiency energy-saving transformer

Core material configurationCore: High-permeability grain-oriented silicon steel sheet, with low no-load loss and low noiseWindings: High-purity oxygen-free copper windings, with high mechanical strength and excellent short-circuit resistanceOil tank: Sealed structure, leak-proof, moisture-proof and long-term maintenance-free

3. Key Features

1. Ultra-low noise and environmental protection: The use of multi-stage iron cores and vibration structures greatly exceeds national standards, making it suitable for high-silence environments such as hospitals, schools, residential areas and office buildings.

Sealed design with oil-free bearings. Vacuum oil injection technology ensures that the insulating oil remains isolated from the air, providing oxidation resistance, moisture protection, and leak prevention. This eliminates the need for core lifting and daily maintenance, resulting in extremely low operating and maintenance costs.

Strong short-circuit resistance and high reliability, with high mechanical strength windings and stable insulation structure, capable of withstanding grid surges, load fluctuations and voltage fluctuations, ensuring safe and stable operation with low failure rate.

Reduced temperature rise and extended service life: An optimized heat dissipation design ensures excellent temperature control, effectively delaying insulation aging. The equipment can operate stably at full load for extended periods, ensuring a longer service life.

High environmental adaptability: The oil tank has corrosion-resistant and weather-resistant properties, which ensures long-term reliable operation in complex environments such as outdoor substations, container substations, mountainous areas, coastal areas and highlands.

4. Application scenarios

• Step-down transformers for wind farms, photovoltaic power plants, and energy storage facilities • High-load power solutions for data centers, IDC facilities, industrial parks, high-end manufacturing plants, mining, steel, and chemical plants • Public buildings including hospitals, schools, commercial complexes, high-end residential buildings, and office towers • Large-scale infrastructure projects such as railways, airports, highways, water conservation projects, and municipal facilities • Compact city substations, containerized substations, and open tower power systems