Power Transformers (ONAN/KNAN) 66kV - 500kV

Hunter Transformers manufactures a complete range of Oil-Filled Transformers, designed to deliver high efficiency, reliability, and long service life across diverse applications. Using ONAN (Oil Natural Air Natural) and KNAN (K-Class Oil Natural Air Natural) cooling methods, our transformers are built to perform in demanding environments while ensuring effective heat dissipation and stable operation.

These transformers are ideally suited for utility networks, renewable energy projects, mining, heavy industry, and large commercial installations, where dependable performance and continuous duty are critical. With robust tank construction, advanced insulation systems, and high-quality cooling oils, our oil-filled transformers are engineered for thermal stability, electrical reliability, and reduced maintenance needs. The use of K-Class fluids in KNAN designs also provides enhanced fire safety and environmental benefits, making them well-suited for sensitive or high-risk locations.

By combining proven manufacturing expertise with customised design capability, Hunter Transformers delivers oil-filled transformers that not only meet Australian and international standards but also align with project-specific requirements for safety, efficiency, and operational resilience.

Key Benefits of Oil-Filled Transformers

• High Efficiency – Optimised designs for minimal energy losses and long-term performance.

• Thermal Stability – ONAN and KNAN cooling systems provide effective heat dissipation under continuous load.

• Enhanced Safety – KNAN units with K-Class fluids reduce fire risks and improve environmental safety.

• Durability – Robust tank design and insulation systems ensure reliable operation in harsh conditions.

• Low Maintenance – Built for long service life with minimal operational servicing required.

• Custom Engineering – Tailored designs to meet specific project requirements and compliance standards.