Dry Type Three-phase Double-winding Non-exciting Voltage Regulating Distribution Transformer,Efficiency Level 1

The SCB18 series epoxy resin cast dry-type transformer meets the GB20052-2020 Efficiency Level 1 energy efficiency standard and is an energy-saving transformer. Utilizing advanced production and testing equipment, it adheres to strict manufacturing processes, offering high reliability, significant energy savings, strong thermal shock resistance, overload capacity, fire resistance, and adaptability to harsh environments. It is ideal for applications requiring high fire protection, large load fluctuations, and dirty or humid conditions, such as high-rise buildings, commercial centers, sports venues, petrochemical plants, airports, tunnels, underground railways, airports, nuclear power plants, offshore drilling platforms, and other locations where installation space is limited and proximity to the load center is necessary.

·High Voltage Winding

The high voltage winding is vacuum-cast with epoxy resin containing fillers, significantly reducing discharge volume and enhancing the electrical strength of the coil. The inner and outer walls of the winding are reinforced with glass fiber mesh cloth, improving the impact toughness of the coil and its resistance to sudden short circuits. This ensures that the coil will not dry out or crack over time.

·Low Voltage Winding

The low voltage winding features a foil structure that resolves issues related to radial spiral angles during wire winding, ensuring more balanced ampere-turns. Radial cooling air ducts are incorporated into the coil design to improve heat dissipation. The winding solid layer is made from DMD epoxy resin prepreg cloth, forming a robust dry solid structure through overall dry solid molding.

·Iron Core:

The core is constructed from high-quality cold-rolled silicon steel sheets with a 45° full oblique joint structure. The core column is bound with F-grade weftless adhesive tape, and the core surface is coated with epoxy resin, effectively reducing no-load loss, no-load current, and core noise. Clamping parts and fasteners undergo unique surface treatments to enhance the  appearance quality of the product.

·Advanced Insulation Materials: The transformer employs high-quality insulation materials that enhance electrical strength and weather resistance, ensuring long-term stable operation.

·Excellent Heat Dissipation Performance: Optimized internal structure and high-performance thermal conductivity materials enable rapid heat dissipation, reducing operating temperature.

·High Adaptability: The transformer maintains stable operation even in high-temperature, high-humidity, and other challenging environments, significantly improving power supply reliability and stability.

· Terminal Connectors

· Cast resin coils

· Epoxy Resin Capacitive Insulator

· Special Termination Arrangement

· Cable Box / Bus Duct

· Cooling Fan

· Rollers (Uni-Directional / Bi-Directional) Protection with Temperature Scanner

· Scanner Off Circuit Tap Changer