Why Do The Silicon Steel Sheets in Transformers Need To Be Vertically Placed?

1、 What is silicon steel sheet?
Silicon steel sheet is processed from cold rolled non oriented electrical steel sheet with high silicon, high phosphorus and low carbon, and its surface is treated with insulating coating. Silicon steel sheets have high magnetic conductivity and low loss characteristics, making them widely used in electromagnetic equipment such as power transformers and motors.
2、 Why do the silicon steel sheets in transformers need to be vertically placed?
The magnetic conductivity of silicon steel sheets is determined by their grain orientation. When the grain follows the rolling direction of the material, its magnetic conductivity is the best, while the transverse magnetic conductivity is the worst. Therefore, in order to ensure the performance of the transformer, silicon steel sheets should be placed longitudinally along the rolling direction of the iron core.
In addition, in transformers, both current and magnetic field flow in the direction of the iron core. If the silicon steel sheet is placed horizontally, it will cause poor magnetic flux and affect the performance of the transformer. For low-voltage transformers, due to the small cross-section of the iron core, placing lateral silicon steel sheets can affect the uniform distribution of magnetic flux density, generate local hot spots, and thus affect the lifespan of the transformer.
Therefore, in order to improve the efficiency and lifespan of transformers, silicon steel sheets must be placed vertically.

3、 The role of silicon steel sheets in transformers
A transformer is composed of an iron core, coil, and insulation material, where the iron core acts as an electromagnetic core. Meanwhile, the performance of transformers is mainly determined by the magnetic conductivity of the iron core, the resistance of the coil, and the potential difference.
Silicon steel sheet is the main material used as an iron core, which serves to concentrate the magnetic field, prevent magnetic flux leakage, and thus improve the efficiency and performance of transformers. At the same time, silicon steel sheets can also reduce magnetic flux loss and improve the efficiency and quality of transformers.
4、 Conclusion
In summary, the magnetic conductivity of silicon steel sheets determines that they must be placed vertically to ensure the efficiency and performance of the transformer. At the same time, silicon steel sheets also have functions such as concentrating magnetic fields, preventing magnetic flux leakage, and reducing magnetic flux loss in transformers.