low cost

1. Product introduction

The 35kV series oil-immersed power transformer is a next-generation high-efficiency and energy-saving transformer that complies with the latest Chinese energy efficiency standards. As a flagship product of medium and high-end energy-saving transformers for 35kV voltage levels, it features high-permeability, low-loss silicon steel sheets, optimized magnetic circuit design, and a fully sealed, corrosion-resistant structure. With advantages such as reduced energy loss, lower noise, enhanced operating stability, and extended service life, this transformer is widely applied in 35kV power transmission and distribution systems. Ideal for power grid construction projects, energy-saving upgrades, industrial power supplies, and renewable energy integration scenarios, it is the preferred solution for energy conservation and sustainable power generation.

2. Technical characteristics (customizable)

Product Type: 35 kV Series Oil-Immersed Power Transformer • Connection Group: YNd11, Dyn11 • Cooling Method: ONAN (Oil-Immersed, Self-Cooled) • Rated Capacity: 50 kVA – 63,000 kVA • Impedance Voltage: 6.5% – 8% (depending on capacity) • Insulation Class: Class A • Protective Structure: Fully Sealed Corrugated Oil Tank with Plate-Type Radiators • Operating Environment: -30°C to +40°C

3. Key Features

Delivering exceptional energy savings. Long-term operation significantly reduces energy costs, while providing a rapid return on investment.

Ultra-low noise and environmental protection: The iron core adopts multi-stage connections and vibration damping technology, ensuring uniform distribution of magnetic circuits and low operating noise, making it suitable for high-silence environments such as residential areas, schools and hospitals.

Fully sealed structure with maintenance-free operation: The oil-free, fully sealed structure isolates the transformer oil from air, effectively preventing oxidation, moisture absorption and leakage, thereby eliminating the need for core lifting and routine maintenance.

Excellent short-circuit resistance: The windings adopt high-strength structure with stable insulation and high mechanical strength, effectively resisting grid overvoltage, load fluctuations and short-circuit faults.

Excellent heat dissipation efficiency during stable operation. An optimized heat dissipation structure ensures low temperature rise, ensuring long-term operation at full load. The equipment demonstrates high reliability and a low failure rate.

Long service life and high adaptability: The oil tank is corrosion-resistant and weather-resistant, and its overall design ensures a long service life. It can withstand a variety of challenging conditions, including outdoor environments, high-altitude areas, humid conditions, dusty areas, and coastal regions.

4. Application scenarios

• New builds, modernizations, and energy efficiency upgrades of 35 kV urban/rural networks • Primary power supply for large factories, mines, steel plants, chemical plants, and industrial parks • Power boosting solutions for wind farms, photovoltaic power plants, and energy storage plants • Power supply for hospitals, schools, commercial centers, luxury residential buildings, and office buildings • Infrastructure projects including water systems, railways, highways, municipal facilities, and airports • Power supply for main transformers in substations, containerized substations, and outdoor tower distribution systems