500kVA Distribution Transformer – Reliable Three-Phase Oil-Immersed Solution

The 500kVA Distribution Transformer from Retrolex Transformers is a reliable, three-phase, oil-immersed transformer engineered for commercial and light industrial power applications. Designed for efficiency, safety, and long-term durability, this transformer features an O.N.A.N. (Oil Natural Air Natural) cooling system, which provides natural heat dissipation without the need for mechanical assistance. This energy-efficient cooling system ensures consistent temperature control, reduces maintenance requirements in the long term, minimizes operational costs, and supports stable performance under varying load conditions, while delivering high reliability, continuous operation for connected loads, protecting sensitive equipment, and improving overall network efficiency even in challenging environmental conditions, ensuring optimal voltage regulation and consistent power supply.

Supporting high-voltage inputs of 6.6kV or 11kV and delivering a 420V low-voltage output, the 500kVA Distribution Transformer incorporates essential safety and monitoring components. These include a Conservator Tank, Buchholz Relay, Temperature and Oil Level Indicators, Pressure Relief Valve, Drain Valve, Cable Boxes, and an Off-Circuit Tap Changer. Together, these features ensure reliable, safe, and low-maintenance operation, even in demanding industrial and commercial environments, while enabling long-term operational stability, compliance with international electrical standards, seamless integration into existing power distribution networks, and improved overall energy efficiency and operational reliability.

Benefits of the 500kVA Distribution Transformer

• Energy Efficient: O.N.A.N. cooling reduces running and maintenance costs.

• Enhanced Safety: Buchholz Relay, Pressure Relief Valve, and indicators provide early fault detection.

• Reliable Performance: Ideal for commercial, light industrial, and utility applications.

• Flexible Configuration: Supports common voltage inputs for seamless integration.

• Durable Construction: Premium materials ensure long-term operational reliability.

• Easy Maintenance: Designed for simple inspection, servicing, and minimal downtime.

• Operational Efficiency: Maintains stable voltage supply for connected equipment and networks.

Applications

• Commercial buildings and office complexes

• Light industrial facilities and workshops

• Utility distribution networks

• Renewable energy integration points

• Backup and emergency power supply systems