
High Efficiency 30kVA Power Transformer Cast Resin Toroidal Dry Type Electrical Transformer Factory Direct Sales. Oil-Free Safety Design: No oil tank or insulating oil eliminates leakage and combustion risks for high fire safety. Epoxy Resin Casting: Windings treated with epoxy resin casting for high mechanical strength and moisture resistance. Low Noise Operation: Noise level around 50-60 decibels, suitable for hospitals, schools, and residential areas. Flexible Customization: Customizable winding material, linking group, size, and weight based on capacity and design. High Short-Circuit Resistance: Compact winding structure withstands significant short-circuit currents without deformation. Low Maintenance Requirements: Simple structure eliminates oil maintenance, requiring only basic cleaning and inspection. Wide Capacity Range: Production capacity ranges from 50kVA to 3000kVA to meet diverse industrial and residential needs. Multiple Cooling Methods: Available in natural air cooling (AN) or forced air cooling (AF) for stable long-term operation.