The Basic Components Of A Transformer

The components of a transformer include the body (iron core, winding, insulation, leads), transformer oil, oil tank and cooling device, pressure regulating device, protective device (moisture absorber, safety airway, gas relay, oil storage tank, temperature measuring device, etc.), and outlet bushing. Specific composition and function:
(1) Iron core. The iron core is the main magnetic circuit part in transformers. Usually, hot-rolled or cold-rolled silicon steel sheets with high silicon content, thicknesses of 0.35mm, 0.3mm, and 0.27mm, and coated with insulating paint on the surface are stacked together. The iron core is divided into two parts: the iron core column and the transverse piece. The iron core column is covered with windings; Horizontal plates are used for closed magnetic circuits.
(2) Winding. The winding is the circuit part of a transformer, which is wound with double insulated flat wire or enameled round wire. The basic principle of a transformer is the principle of electromagnetic induction. Taking a single-phase double winding transformer as an example, its basic working principle is explained: when a voltage U1 is applied to the primary winding, a current I1 flows through it, and an alternating magnetic flux O1 is generated in the iron core. These magnetic fluxes are called the main magnetic flux. Under its action, the two windings induce electric potential respectively, and finally drive the transformer control device.