Structure and characteristics of single-phase ei transformer lamination

- Oct 11, 2018-

The no-load loss of a transformer in a single-phase ei transformer lamination consists primarily of basic losses, joint losses, and shear-edge losses. In addition to the basic loss, the seam loss accounts for a large proportion and the shear edge loss is small. Seam loss is a magnetic flux density that is closely related to the local flux density, especially the seam area. Due to the influence of the joint gap, the local magnetic density increases, resulting in an increase in local loss of the core.

Single-phase ei transformer laminations reduce this effect and are an effective way to reduce losses. However, the number of laminated sheets increases with the number of lamination stages, and the production efficiency of silicon steel sheet shearing and core lamination is reduced. This contradiction is only through advanced silicon steel sheet shearing equipment and advanced lamination process. And choose the appropriate seam level to solve.

The five-stage joint of the single-phase ei transformer lamination is more suitable, and its production efficiency is higher than that of ordinary secondary or tertiary joints, which can fully meet the needs of production. Now compare the difference between the local loss and the no-load current of the five-level joint and the third-level joint. The no-load loss of the five-level seam core is reduced by 5 to 8 on average, and the no-load current is reduced by more than 30. The energy-saving effect is very significant.