Since insulating material is an important part of baoding dry transformer, how to select the suitable insulating material when maintaining the maintenance of dry type transformer? What are the requirements for baoding dry transformer insulation materials?

When the maintenance of dry type transformer, choose suitable insulation materials should pay attention to the following aspects:

1. Insulation materials with uniform insulation level. According to the insulation grade of the original design, the maintenance personnel should choose insulation materials. Instead of class A insulation materials, the insulation materials of grade A shall be used instead of class B insulation materials, which will greatly shorten the service life of the equipment. If class B insulation material is used instead of grade A insulation material, the material shall not be fully utilized, resulting in waste.

2. The insulation strength of the selected materials should be consistent. It is important to know that the insulation strength of capacitor paper, cable and insulating cardboard is different. If the transformer used is capacitor paper, it cannot be replaced by cable paper, which is because the insulation strength of the capacitor paper is higher than the cable paper.

3. When the transformer is repaired, the mechanical properties of the material should be considered. Because paper materials lose their mechanical strength, they lose their insulation strength. Therefore, the transformer maintenance must take into account the mechanical strength, the general requirements of the insulation paper between the two pieces, the winding insulated cylinder generally used two pieces of 1.5mm cardboard.

4. In the maintenance of transformer, the deformation and shrinkage of the cardboard shall be considered. Because the thickness of the board will increase after the moisture absorption, the thickness will decrease after drying.

Above is baoding dry type transformer manufacturers of dry type transformer maintenance, some matters that should be paid attention to choose the appropriate insulation, users in the maintenance of the transformer, must be carefully carefully, if have not understand or can't solve the problem, had better ask professional maintenance staff to deal with to solve or returned to the factory maintenance.

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