Meaning And Classification Of Transformer Core

The core is the main part of the magnetic circuit in the transformer. It is usually composed of hot rolled or cold rolled silicon steel sheets with a high silicon content and a surface coated with insulating paint. The iron core and the coils around it constitute a complete electromagnetic induction system. The amount of power transmitted by the power transformer depends on the material and cross-sectional area of the iron core.
​1, high-frequency class: iron powder core Ferritecore
​Ferritecore is used in high frequency transformers. It is a ceramic magnet with spinel crystal structure. The metals commonly used at present are manganese (Mn), zinc (Zn), nickel (Ni), magnesium (Mg) and copper (Cu).
​2, low frequency: silicon steel (LAMINATION)
​Silicon steel sheet for low-frequency transformers, according to the production process can be divided into A: forging burning (black), N: no forging burning (white) two. According to the shape can be divided into: EI type, UI type, C type, mouth.
​3. COIL Class
​The COIL class can be divided into three types.
​(1) TOROID ring core: the O-type laminated, or rolled by silicon steel sheet. This kind of core is very difficult to wind.
​(2) RODCORE
​(3) DRUMCORE: drum-shaped iron core.