Dry Type Cast Resin Transformer

High-strength epoxy resin integral casting winding, fully sealed to isolate dust and moisture, reaching IP20 protection level. It completely avoids oil leakage and fire hazards existing in oil immersed transformers, with fire resistance grade F, which can restrain open flame spreading and greatly improve indoor power supply safety.

Low-loss grain-oriented silicon steel core with 45° full miter joint design, cutting no-load loss by over 20% compared with traditional dry transformers, and controlling running noise below 52dB. It can operate continuously under 120% overload for short time without coil damage, adapting to fluctuating industrial load conditions.

Built-in intelligent forced air cooling radiator and temperature monitoring sensor. When internal temperature rises to the set value, the cooling fan automatically turns on; it will send alarm signals and cut off power in case of overheating, realizing full automatic temperature protection without manual monitoring.

Color-coded copper busbar connection terminals for three-phase A/B/C phase distinction, convenient for wiring and inspection. The overall frame adopts thickened steel with anti-rust coating, compact vertical layout saves over 30% indoor installation space, and supports hoisting and forklift transportation with reserved lifting lugs.

Comply with IEC international electrical standards and obtain CE certification, all epoxy resin and copper winding materials pass flame retardant tests. We support customized capacity, voltage ratio and anti-humidity treatment for underground, high-temperature and humid indoor distribution rooms.

◉ Commercial & high-rise buildings: This cast resin dry transformer is used for power transformation of shopping malls, office buildings and residential high-rises. Its flame retardant and explosion-proof features eliminate fire risks in densely populated indoor power distribution rooms.

◉ Medical & public facilities: Widely matched in hospitals, schools and subway stations. Without flammable insulating oil, it meets strict fire protection standards for public places with large pedestrian flow.

◉ Data center & underground power room: Suitable for underground distribution rooms and server computer rooms. The fully sealed coil resists damp and dust, ensuring stable power supply for precision electronic equipment 24 hours a day.

◉ Industrial workshop & new energy indoor station: Applied to factory production workshops and indoor photovoltaic booster stations, supporting short-time overload operation to cope with unstable power load of production lines.

Place the transformer on horizontal concrete foundation and fix the base with bolts, connect three-phase busbars to corresponding terminals. Debug the temperature control fan before power transmission. Download the full PDF operation manual for regular temperature inspection and coil maintenance steps.

Can the capacity and voltage ratio of dry type cast resin transformer be customized?

Yes, we provide full series transformers from 50kVA to 3000kVA, and adjust high-low voltage ratios according to local grid standards. Free technical drawings will be provided before mass production.

What fire safety advantages does this dry transformer have compared with oil immersed type?

It uses flame-retardant epoxy resin without combustible transformer oil, no leakage or explosion risk. It can self-extinguish when encountering open fire, which is mandatory for indoor and underground power distribution projects.

Does this dry transformer meet EU export market standards?

The whole set complies with IEC international standards and holds complete CE certification documents for customs clearance. We can customize damp-proof and anti-corrosion surface treatment for humid coastal indoor projects.