High Silicon Content Iron Core Used For Oil-immersed Transformers And Dry-type Transformers

  In order to reduce eddy current and hysteresis loss and improve the magnetic permeability of the magnetic circuit, the iron core is made of 0.35mm~0.5mm thick silicon steel sheet coated with insulating paint and then staggered and stacked.

Small transformer cores have rectangular or square cross-sections, and large transformers have stepped core cross-sections, which are to make full use of space.

 Transformers are made according to the principle of electromagnetic induction. There are two windings, a primary winding, and a secondary winding, wound around the closed core column. When the original winding is added with the AC power supply voltage, the original Rao group current has alternating current, and the establishment of magnetic potential, under the action of the magnetic potential, the main magnetic flux will be generated in the iron core, the main magnetic flux will pass through the iron core at the same time, and the primary and secondary windings will be closed due to electromagnetic induction in the primary and secondary windings respectively, and the induced electromotive force will be generated, as for why it can be boosted and reduced? Then it needs to be explained by Lenz's law, the magnetic flux generated by the induced current always hinders the change of the original magnetic flux, when the original magnetic flux increases, the magnetic flux generated by the induced current is opposite to the original magnetic flux, that is, the induced magnetic flux generated by the secondary winding is opposite to the main magnetic flux generated by the original winding, so the secondary winding has a low level of alternating voltage, so the iron core is the magnetic circuit part of the transformer, and the winding is the circuit part of the transformer.