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What Are The Materials Of The Transformer?

Jul 01, 2017

  What are the materials of the transformer?

  To build a transformer we must have a certain understanding of the material associated with the transformer, for which I will introduce this knowledge.

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  1, core material

  Transformer use of iron core materials are mainly iron, low silicon, high silicon, the steel added to the silicon can reduce the conductivity of steel, increase the resistivity, it can reduce the eddy current, to reduce the loss. We usually referred to as silicon steel sheet for the silicon steel sheet, the quality of the transformer used in the quality of silicon steel sheet has a great relationship, the quality of silicon steel sheet is usually expressed by the magnetic flux density B, the general black iron B value 6000-8000, low silicon for 9000-11000, high silicon for 12000-16000,

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  2, commonly used materials for winding transformers

  Enameled wire, yarn package line, silk envelope line envelope, the most commonly used enameled wire. For the requirements of the wire, the conductivity is good, the insulation paint layer has enough heat resistance, and have a certain corrosion resistance. Under normal circumstances it is best to use QZ models of high strength polyester enameled wire.

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  3, insulation materials

  In the winding transformer, the isolation between the coil frame layer, the isolation between the winding, the use of insulating materials, the general transformer frame material can be made of phenolic cardboard, epoxy board, or cardboard. Interlayer can be used polyester film, telephone paper, 6520 composite paper for isolation, winding between the use of yellow wax cloth, or imine film for isolation.

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  4, impregnated material

  Transformer winding system, but also over the last process, is impregnated insulating paint, it can enhance the mechanical strength of the transformer to improve the insulation performance and extend the service life, under normal circumstances, can be used as a impregnated cresol paint or 1032 insulating paint , Resin paint.