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What Are The Materials Of The Transformer?
- Jul 27, 2017 -

To get around a transformer. We must have a certain understanding of the materials related to the transformer, so here I would like to introduce this knowledge.

1. Iron Core Material

The iron core materials used in transformers mainly include iron sheet, low silicon wafer, high silicon wafer, silicon in the steel sheet can reduce the conductivity of the steel sheet, increase the resistivity, it can reduce eddy current, so that its loss. We are commonly called silicon-added steel sheet for silicon Steel, the quality of the transformer used in the silicon steel sheet quality has a great relationship, the quality of silicon steel is usually used in magnetic flux density B, the general black Iron Sheet B value of 6000-8000, low silicon wafer 9000-11000, high silicon wafer for 12000-16000,

2. Material used in winding transformers

Enameled wire, Bang, envelope paper wrap line, the most commonly used enameled wire. For wire requirements, is good conductivity, insulating varnish layer has enough heat resistance performance, and must have a certain corrosion resistance. Generally, it is best to use QZ model of high-strength polyester enameled wire.

3. Insulating material

In the winding transformer, the isolation of the coil frame layer, the insulation between the resistance, the use of insulating materials, the general transformer frame material can be made of phenolic cardboard, epoxy board, or cardboard. The interlayer can be separated by polyester film, telephone paper, 6520 composite paper, and can be isolated by Huang Labu or imide membrane.

4. Impregnated material

After the transformer around the system, but also to the last process, is impregnated insulating varnish, it can enhance the mechanical strength of transformers, improve insulation performance, prolong the service life, in general, the use of cresol varnish can be used as impregnated material or 1032 varnishes, resin paint.