The capacity range of S13 three-dimensional wound core transformer is 30-1600KVA. The core has a three-phase three-column structure with wrapped internal and external frames. The transformer has a high degree of mechanization and a large lamination factor. High and low voltage coils are continuously wound on core columns, so that the concentricity is good and the coils are tight. The main technical and economic indicators have reached the international advanced level of similar products.
S13 series wound core distribution transformer has a low loss, and its load loss is the same as new S11 laminated core distribution transformer. Compared with GB/T6415-2008 1, the average no-load loss reduces by 50%. Its main materials have low consumption and light weight. The no-load current is small, and magnetic flux is completely arranged along the direction of cold-rolled silicon steel sheet lattice.