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Cast Resin Transformer

Looking for a robust and reliable power distribution solution? Our cast resin transformer offers exceptional performance and longevity for demanding industrial and commercial applications. Unlike traditional oil-filled units, these dry-type transformers use a solid epoxy resin cast around the winding assembly, providing superior protection against moisture, dust, and corrosive environments. This makes them an ideal choice for indoor installations, fire-sensitive locations, and areas with stringent environmental regulations. If you require even higher efficiency for core energy savings, you might consider an Amorphous Alloy Transformer. For specific voltage conversion needs, such as stepping down from a 10kV supply, our 10KV 220V Dry type Transformer is engineered for precision. We also combine these technologies in our high-efficiency Amorphous Alloy Dry type Transformer. As a leading manufacturer of electrical infrastructure, we provide a comprehensive range of Distribution Transformer solutions tailored to diverse grid and facility requirements.


The core design of a cast resin transformer prioritizes safety and minimal maintenance. The windings are completely encapsulated within a high-grade, flame-retardant epoxy resin. This encapsulation not only provides excellent dielectric strength and thermal conductivity but also ensures the transformer is self-extinguishing, significantly reducing fire hazards. The Cast Resin Transformer operates with very low noise levels, making it suitable for installations near offices, hospitals, and residential buildings. Its robust construction is inherently resistant to short circuits and thermal shocks, guaranteeing stable operation under fluctuating loads and harsh conditions. The absence of insulating oil eliminates the risk of leaks and the associated soil contamination, contributing to a cleaner and safer operational footprint.

Technical Specifications at a Glance

Standard Product Range

Power Rating (kVA) Primary Voltage (kV) Secondary Voltage (V) Vector Group Noise Level (dB(A))
100 - 500 Up to 11 400 / 230 Dyn11, Yyn0 < 55
501 - 1600 Up to 33 400 / 230 or Custom Dyn11, Yyn0, YNd11 < 60
1601 - 5000 Up to 36 Custom As per specification < 65

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