1/2/5 /8/12/20MVA 38kV Three Phase Air Cooled Oil Immersed Power Transformer

Three Phase Air Cooled Oil Immersed Power Transformer

The Three Phase Air Cooled Oil Immersed Power Transformer is designed for high-capacity electrical applications, delivering a rated apparent power of 12.5 MVA. Operating in a three-phase system—standard for industrial and utility power distribution—it integrates both oil-immersion and air-cooling technologies for superior performance and reliability.

Oil Immersion: The core and windings are fully submerged in premium insulating oil. This oil provides excellent dielectric strength to prevent electrical faults while efficiently absorbing heat generated during operation.

Air Cooling: Equipped with fan-assisted cooling, the transformer activates air-cooling mechanisms when oil temperature exceeds preset thresholds. Airflow over the radiator fins accelerates heat dissipation, ensuring stable performance under heavy or fluctuating loads.

This combination of oil insulation and enhanced air cooling ensures high efficiency, extended service life, and suitability for both indoor and outdoor installations—especially in regions where water resources limit the use of water-cooled systems.

Applications of Three Phase Air Cooled Oil Immersed Power Transformer

Industrial Facilities

The 12.5 MVA transformer is widely used in heavy manufacturing, steel production, chemical processing, and mining operations. It steps down high-voltage grid power (such as 33 kV or 66 kV) to usable levels like 11 kV or 415 V, ensuring stable and continuous power for motors, compressors, heating systems, and other critical industrial equipment.

Utility-Scale Power Distribution

Electric utilities deploy this transformer in substations to support grid expansion and load demand. It efficiently steps down transmission voltages (e.g., 132 kV to 33 kV) to supply residential, commercial, and industrial users. Its robust design makes it ideal for rapidly growing urban and suburban electricity networks.

Renewable Energy Integration

In solar farms, wind parks, and hybrid renewable projects, the transformer functions as a step-up unit. It converts medium-voltage generation (around 10 kV) to higher voltages such as 66 kV or 132 kV for long-distance transmission. Its air-cooled configuration performs reliably in remote or water-scarce regions, including desert solar installations.

Commercial & Municipal Infrastructure

Large commercial complexes—airports, malls, data centers—as well as public facilities like hospitals, universities, and wastewater treatment plants rely on stable high-capacity power. The 12.5 MVA transformer delivers consistent and safe energy supply even during peak demand periods. Its compact structure supports installation in space-restricted metropolitan environments.