Energy-saving Low-iron Loss Good Property Iron Core Widely Used For Transformer Accessories

    The iron core used as a transformer is generally made of cold-rolled silicon steel sheet with a thickness of 0.35mm, which is cut into a long piece according to the size of the required iron core, and then overlapped into a "day" or "mouth" shape. Logically speaking, if the eddy current is reduced, the thinner the thickness of the silicon steel sheet, the narrower the spliced piece, the better the effect. This not only reduces eddy current losses, reduces temperature rise, but also saves the material used for silicon steel sheets. But in fact, when making silicon steel sheet iron core. It is not only from the above-mentioned favorable factors, because the production of the iron core in this way will greatly increase the man-hours, and also reduce the effective cross-section of the iron core. Therefore, when using silicon steel sheet to make transformer core, it is necessary to start from the specific situation, weigh the pros and cons, and choose the best size.

   Since silicon steel has the above advantages, why not use a whole piece of silicon steel as an iron core, but also process it into sheets?

    This is because the sheet core can reduce another type of iron loss, "eddy current loss". When the transformer works, there is an alternating current in the coil, and the magnetic flux it produces is, of course, alternating. This changed magnetic flux generates an induced current in the core. The induced current generated in the iron core circulates in a plane perpendicular to the direction of magnetic flux, so it is called eddy current.