3000 kVA 13.8kV to 480V Three Phase Cast Resin Dry Type Transformer

A 3000 kVA dry type transformer is a medium to large capacity transformer designed for safe and reliable voltage conversion without the use of liquid insulation. Instead, it uses air cooling and solid insulation materials like epoxy resin. These transformers are ideal for critical applications where fire safety, environmental protection, and low maintenance are essential, such as commercial buildings, industrial facilities, hospitals, and data centers.

Our 3000 kVA dry type transformers are manufactured with high-grade silicon steel cores and advanced winding technologies to minimize energy losses. Featuring high short-circuit strength, low noise operation, and superior heat dissipation, they are optimized for long service life and maximum efficiency. Designed to meet or exceed DOE and EU efficiency standards, these transformers help reduce operational costs and environmental impact.

The 3000 kVA transformer uses epoxy resin cast coil technology, offering outstanding electrical insulation, moisture resistance, and mechanical strength. Each coil is cast under vacuum to eliminate air pockets, ensuring superior dielectric performance and reducing partial discharge. This construction method enhances the transformer’s reliability even in harsh, high-humidity, or dust-prone environments.

Our transformers support a wide range of voltage combinations to suit different grid requirements. For primary voltages, we offer 11kV, 13.8kV, 22kV, and 33kV. On the secondary side, 400V, 415V, 480V, or even custom voltages are available to match regional distribution standards, making our transformers ideal for both domestic and export projects.

We offer Class F (155°C) and Class H (180°C) insulation systems, ensuring safe operation under high load conditions. IP00 open type is standard, while IP23 enclosures are available for added protection against dust, dripping water, and light outdoor exposure. For higher altitudes or severe environments, special cooling fans (forced air cooling) can be added.

We provide options for copper or aluminum windings to balance performance and cost. Copper offers better conductivity, higher mechanical strength, and improved efficiency, especially critical for industrial applications. Aluminum windings provide a cost-effective alternative while maintaining excellent thermal performance and reliability.

Made with flame-retardant epoxy resin and self-extinguishing materials, our transformers are certified for fire safety, with low smoke and zero halogen emissions. They are suitable for installation in confined spaces like basements, substations, shopping centers, and airports, ensuring maximum safety for people and property.

Typical uses include power distribution for manufacturing plants, universities, hospitals, commercial centers, metro stations, and renewable energy systems. Their robust design makes them perfect for environments requiring high uptime and minimal service interruptions.

We specialize in custom-made transformer solutions tailored to specific client requirements, including unique voltages, winding materials, enclosure designs, and special environmental protections (marine use, desert climates, high altitudes). OEM and ODM cooperation is available, helping clients build their brand with world-class quality transformers.

Dry type transformers offer key advantages: no oil leaks, reduced fire risk, minimal maintenance, and environmental friendliness. Compared with oil-immersed types, they require less installation space, have faster delivery times, and are often a more cost-effective choice for urban and commercial installations.

Installation is simplified with dry type transformers — no oil filling, containment pits, or ventilation systems for flammable gases are required. Regular maintenance includes cleaning of cooling ducts, checking for dust buildup, inspecting insulators, and tightening terminals to ensure safe and continuous operation.

Thanks to high-grade materials and optimized coil designs, our transformers achieve very low core and copper losses. Typical no-load loss and load loss figures meet or exceed premium efficiency standards, translating to significant energy savings and longer transformer life.

With two large manufacturing bases equipped with advanced production lines and automated test facilities, Energy Transformer ensures consistent quality, fast production cycles, and the ability to handle large and urgent orders for domestic and international clients.