low-loss oil-immersed transformer
Advantagesoil-immersed transformer product35 kV
1. Higher energy efficiency
2. Super energy-saving, more efficient for long-term operation
3. Quiet and stable, low noise
4. Fully sealed, maintenance-free
5. Strong short-circuit resistance and high reliability
6. Low temperature rise, longer service life
7. Optimization of power grids, new energy, industry, and mining
1. Product Introduction
Oil-immersed transformer35 kV series is an ultra-high-efficiency transformernext-generation product. Equipped with advanced silicon steel sheets silicon steel sheets, optimized magnetic circuit design, and fully sealed reliability, it is designed for 35 kV power transmission and distribution systems, excelling in voltage conversion, power distribution, and renewable energy grid integration. With low operation, quiet operation, high reliability, maintenance-free performance, and extended service life, it serves as a key energy-saving solution for grid upgrades, large industrial facilities, data centers, renewable energy plants, and high-end power supplies.
2. Technical specifications (customizable)
Product type: Oil-immersed submerged power transformer35 kV series
Rated capacity: 50 kVA – 63,000 kVA
Voltage regulation mode: on-load voltage regulation, off-circuit voltage regulation, or motorized off-circuit voltage regulation on the high-voltage side
Cooling Mode: ONAN/ONAF
Connection symbol: Dyn11 / YNd11 (industry standard)
Energy efficiency level: high-efficiency energy-saving transformer
3. Key features
Ultra-low noise level for quiet operation: Optimized iron core design and vibration suppression noise reduction scheme result in a reduced operating noise level, making it suitable for high-silence environments such as residential areas, schools, hospitals, and office buildings.
Fully sealed design, maintenance-free and oil-free bearing: The fully sealed structure prevents transformer oil from contacting air, ensuring oxidation resistance, moisture protection, and leak prevention. This eliminates core lifting and routine maintenance requirements, resulting in extremely low operation and maintenance costs.
High short-circuit resistance, high mechanical strength of windings, and stable insulation structure enable it to withstand grid surges, load fluctuations, and short-circuit voltage stresses, ensuring safe and reliable operation.
Low temperature rise and extended service life: The optimized cooling system provides excellent temperature rise control, effectively slowing insulation aging, extending equipment lifespan, and enhancing stability.
Strong environmental adaptability with excellent anti-corrosion, moisture, dust, and weather resistance properties, suitable for complex conditions such as open spaces, substations, container substations, high-altitude areas, and coastal regions.
4. Application scenarios
• New construction and energy-saving upgrades of urban/rural 35 kV power grids • High-load power supply for large industrial parks, factories, mines, metallurgical and chemical enterprises • Reinforced transformers for wind farms, photovoltaic systems, and energy storage stations • Data centers, commercial complexes, hospitals, schools, and high-end residential communities • Infrastructure projects including railways, highways, airports, water conservancy facilities, and municipal systems • Main transformers in substations, container substations, and outdoor tower-type distribution systems


