The Function of Three-Phase to Single-Phase Transformers

Three-phase to single-phase transformers, through special winding designs, efficiently convert three-phase AC power into electrical energy suitable for single-phase loads while balancing the current of the three-phase power grid, solving the problem of mismatched power supply systems and ensuring the stable operation of loads and the safety of the power grid.

1. High-Level Insulation Protection: Adopting Class C insulation standard, its insulation performance is far superior to conventional grades. Combined with strict withstand voltage tests—primary to secondary, primary to ground, and secondary to ground can all withstand 2500V/60S voltage; insulation resistance is all ＞100MΩ. The induced withstand voltage test under 125Hz double voltage meets the standard, effectively resisting the impact of humid, dusty, and other environments, and eliminating the risk of electric leakage.
2. Stable Heat Dissipation and Temperature Rise Control: The natural air cooling design requires no additional fans, resulting in low operating noise. Even under high-load conditions, the temperature rise is strictly controlled below 150℃, which can maintain stable operation of windings and extend the service life of the equipment.
3. Reliable Grounding Design: The grounding resistance is ＜100mΩ (test current 25A), and the grounding performance fully complies with safety specifications. This further enhances the operational safety of the equipment, making it suitable for densely populated areas or places with high safety requirements.

• Strong Adaptability: The multi-tap voltage regulation design for input voltage (2×2.5% FCAN + 6×2.5% FCBN) can flexibly adapt to voltage fluctuations of power grids in different regions; the output 120V/240V single-phase power accurately matches the needs of common loads such as commercial lighting and industrial single-phase equipment, without the need for additional voltage regulation devices.
• Outstanding Durability: The full-aluminum windings combine good electrical conductivity and lightweight advantages. Cooperated with the high temperature resistance and anti-aging properties of Class C insulation, it reduces daily maintenance needs and lowers the long-term use cost.
• Safety and Compliance: Various safety indicators such as withstand voltage, insulation resistance, and grounding performance all comply with industry standards for power distribution equipment. There are no safety hazards such as electric leakage or overheating, so it can be safely used in indoor commercial areas, industrial workshops, and other scenarios.

• Small and medium-sized industrial workshops: Providing stable power supply for single-phase machine tools, welding machines, electroplating equipment, etc.;
• Commercial complexes: Supporting the operation of single-phase loads such as lighting systems, central air conditioners, and elevators;
• Data centers: Supplying reliable power for auxiliary facilities (e.g., room lighting, monitoring equipment);
• Municipal scenarios: Adapting to the single-phase power needs of community power distribution and small public buildings, solving the connection problem between three-phase power grids and single-phase loads.