博文

目前显示的是 三月, 2025的博文

The principle of silicon steel sheets to reduce eddy current losses in motors

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Effect on eddy current losses The thickness of silicon steel sheets is closely related to eddy current losses. When the thickness of silicon steel sheets increases, the loop area formed by eddy currents increases, and eddy current losses rise sharply. For example, if the thickness of silicon steel sheets is increased from \(0.3mm\) to \(0.6mm\), the eddy current losses will theoretically become 8 times the original value when other conditions remain unchanged. This will not only cause serious heating of the iron core when the motor is running, but also reduce the energy utilization rate of the motor, resulting in a large amount of electric energy waste. On the contrary, using thinner silicon steel sheets, such as the common \(0.2 – 0.3mm\) thickness, can effectively reduce the eddy current loop area, significantly reduce eddy current losses, and improve the operating efficiency of the motor. Effect on magnetic permeability Thinner silicon steel sheets have advantages in...

Silicon steel sheet: key material in the electrical field

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In the modern electrical industry, silicon steel sheet is an extremely important soft magnetic material, widely used in various types of electromagnetic equipment such as motors, transformers, reactors, etc., and plays a key role in the efficient operation of the power system. Silicon steel sheet, also known as electrical steel sheet, is a silicon-iron alloy with a silicon content of 0.5%-4.5%. The addition of silicon significantly increases the resistivity of steel and reduces the eddy current loss generated by the iron core in the alternating magnetic field, which is an important characteristic of silicon steel sheet that distinguishes it from ordinary steel. At the same time, silicon steel sheet also has a higher magnetic permeability, which can conduct magnetism more effectively, so that electromagnetic equipment can generate sufficient magnetic flux under a smaller excitation current, greatly improving energy utilization efficiency. From the manufacturing process p...