The transformer equipped with on-load tap changer is called on-load tap changer. The body of the products produced by our company adopts a new insulation structure, which improves the short circuit resistance of the products. The iron core is made of high-quality silicon steel sheet, with a full angle of 45. Cutting, reasonably controlling the magnetic density, effectively reducing the noise. The winding is made of semi-hard oxygen-free copper, effectively reducing the loss and ensuring the wire strength. It is a reliable product of the substation.