To wind a
transformer need to be familiar with the knowledge of
transformers or its relative informations.
1、Core Materials：The main core material of the
transformers includes iron sheet, low sillicon, high sillicon, adds sillion to the copper can lower the conductance of the copper, and increase the impedance rate, and reduce the wortex and thus lower the loss, and we also call the copper which added sillion the sillicon sheet, the quality of the
transformer has much to do with the quality of the sillicon sheet, and the symbol of the sillion sheet quality is B (magnetic flux tensity), the B value of general black iron is from 6000-8000, that of the low sillion is 9000-11000, that of the high sillion is from 12000-16000.
2、The main materail for winding the transform includes lacquered wire (the most used materail), sandbag wire, and silk covered wire. The wire should be of good conductance, and the insluation layer should withstand the hot, and withstand the corrosion. Generally, it usually applies the Q2type high tensity polyester lacquered wire.
3、Insulation material：During the process of winding the
transformer, the isolation material of the coil framwork interlaminar, the isolation of winding all should be insulated. The general framework material can apply the phenolic cardboard, and the interlaminar can apply the mylar or Tel paper as the isolation material, and it can apply the yellow wax cloth as the insulation material between the winding.
4、Impregnated materials：After the winding process, it is the varnish insulation paint, which can strengthen the mechanical strength, improve the insulation level, prolong the use life. Generally, it can apply the cresol varnish as the impregnating materail.
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