Main Components And Related Components Of Dry-type Transformers

GNEE New Material 750 kva dry type transformer

Dry-type transformer is an important power equipment and a good helper in our lives. So what are the main components and related components of dry-type transformer?

75 kva dry type transformer

The iron core is the main body of the magnetic circuit of the dry-type transformer. The iron core is divided into a stem and an iron yoke, with windings on them. The yoke is used to close the magnetic circuit. In order to reduce the hysteresis loss and eddy current loss in the iron core and improve the magnetic permeability of the iron core, the iron core is made of silicon steel sheet with a silicon content of about 5%, with a thickness of 0.35mm or 0.5mm, and is coated with insulating paint or anti-oxidation materials on both sides. . The core is divided into core structure and shell structure. Iron-core dry-type transformer: The primary and secondary windings of the iron-core dry-type transformer are placed on the two pillars of the iron core. The structure is simple. All power dry-type transformers use core-type dry-type transformers. shape structure. Shell-type dry-type transformer: The iron core of the shell-type dry-type transformer surrounds the upper, lower, and side sides of the winding. The manufacturing is complicated, and small dry-type transformers are mostly used. The winding is the circuit part of the dry-type transformer and is made of insulated copper or aluminum wire. The winding is the carrier of current, generating magnetic flux and induced electromotive force. High voltage winding: winding with high working voltage; low voltage winding: winding with low working voltage. There are concentric windings and overlapping windings. Concentric winding: The high and low voltage windings are arranged in the same iron core on the same core column. The low voltage winding is inside and the high voltage winding is outside. It is easy to insulate from the iron core and has a simple structure. Winding: The high and low voltage windings are divided into several pie-shaped coils, which are staggered on the core column along the height of the core column. Concentric winding 1-high voltage winding 2-low voltage winding 3. The accessories of dry-type power transformers include oil tanks, oil conservator, tap changers, safety air ducts, insulating bushings, etc. Its function is to ensure the safe and reliable operation of dry-type transformers.