Epoxy resin dry-type transformers from TAILI Electric, is difference from oil type transformer is that it must be installed inside with the core and winding are not impregnated in insulating oil, are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Its cooling method can be divided into natural air cooling (AN) and forced air cooling (AF). With natural air cooling, the transformer can operate continuously at rated capacity for a long period of time. With forced air cooling, the transformer output capacity can be increased by up to 50%. It is suitable for intermittent overload operation, or emergency accident overload operation; because of the load loss and impedance voltage increase during overload, it is in non-economic operation, so it should not be in long time continuous overload operation.
Key Options
◆ Cast resin insulation
◆ Three-phase distribution designs
◆ Natural air or forced-air cooling
◆ Copper or aluminum winding options
◆ Fixed tapping, dual-voltage or OLTC configurations
◆ IEC, IEEE and ANSI project designs
◆ Indoor and protected outdoor enclosures
◆ 50 Hz or 60 Hz systems
Cast Resin Transformer Range
| Product Configuration | Typical Specifications | Recommended Conditions | Main Advantage |
|---|---|---|---|
| Standard Cast Resin Dry Type Transformer | Customized kVA and voltage; AN cooling | Commercial buildings, factories, hospitals and indoor substations | Safe, oil-free and low-maintenance power distribution |
| Cast Resin Transformer with Cooling Fan | AN/AF cooling; intelligent temperature monitoring | High load, limited ventilation or elevated ambient temperature | Increased cooling and overload capability |
| 35kV Dry Type Transformer with OLTC | Up to 35kV; on-load voltage regulation | Unstable grids, industrial plants, renewable energy and substations | Regulates voltage without shutting down the transformer |
| Dual-Voltage Dry Type Transformer | 15/20kV primary voltage; 400V secondary option | Markets or projects using two medium-voltage systems | One transformer can adapt to different grid voltages |
| Project-Customized Cast Resin Transformer | 400–2500kVA project references and other engineered ratings | EPC, utility and industrial projects | Built according to project drawings and technical specifications |
Applications
◆ Industrial manufacturing plants
◆ Commercial and high-rise buildings
◆ Data centers and telecommunications facilities
◆ Hospitals and public infrastructure
◆ Airports, railways and metro systems
◆ Mining and heavy industrial facilities
◆ Solar and wind power projects
◆ Water treatment and municipal facilities
◆ Indoor substations and load centers
◆ Utility and EPC power distribution projects
For applications where lower initial cost or open-winding construction is preferred, compare our VPI dry type transformers. For projects focused on reducing no-load losses, view our amorphous alloy dry type transformers.
