The cores are wound from grain oriented silicon steel strip and are annealed in high vacuum furnace under protection atmosphere. The impregnation is done in vacuum impregnating equipment, and low-stress and high-viscosity resin are being used. Fine polishing process of cutting surface ensures very good performance of the cores with low core loss and high saturation. We can also produce 'non-standard' cores according to customers' specifications.Applications: Power transformers, current transducers, instrument transformers, inductors, chokes, ballasts, voltage stabilizers and regulators, welding transformers, special transformers