Energy-saving benefits of toroidal transformers

High efficiency

The core of the toroidal transformer is wound by continuous oriented silicon steel strips. After annealing, it will form a highly consistent magnetic flux guide. At the same time, the winding of the toroidal transformer is tightly covered with the toroidal core for winding, and the magnetic flux density is high, because the toroidal transformer can achieve a high electrical efficiency of 95%.

Product advantages

The core of the toroidal transformer is made of high-quality cold-rolled silicon steel sheets (sheet thickness is generally less than 0.35mm), seamlessly rolled, which makes its core performance better than the traditional laminated core. The coil of the toroidal transformer is evenly wound on the core, and the direction of the magnetic lines of force generated by the coil is almost completely coincident with the magnetic circuit of the core. Compared with the laminated type, the excitation energy and core loss will be reduced by 25%, which brings the following series of advantages.

1) High electrical efficiency The core has no air gap, the stacking coefficient can be as high as 95% or more, the core magnetic permeability can be 1.5~1.8T (laminated core can only take 1.2~1.4T), the electrical efficiency is as high as 95% or more, and the no-load current is only 10% of the laminated type.

2) Small size and light weight. The weight of the toroidal transformer can be reduced by half compared with the laminated transformer. As long as the cross-sectional area of the core is kept equal, the toroidal transformer can easily change the length, width and height ratio of the core, and the size that meets the requirements can be designed.

3) Small magnetic interference. The core of the toroidal transformer has no air gap, and the winding is evenly wound on the toroidal core. This structure leads to small leakage magnetic field and small electromagnetic radiation. It can be used in highly sensitive electronic equipment without additional shielding, such as low-level amplifiers and medical equipment.

4) Small vibration noise. The core has no air gap, which can reduce the core.