Insulation board of transformer
Insulation board: the thickness of 0.1.5, 2, 2.5, 3.0mm, commonly used as insulation soft paper tube, stay, block, white clapboard, iron yoke insulation, insulation and other support angle rings.
Insulation board is used for internal insulation of transformer to prevent internal discharge of transformer. Because the oil immersed transformer internal insulation is oil + paper, that is, transformer oil + insulating cardboard, the reason for the use of these two materials for the main insulation materials, because the dielectric coefficient of these two materials is not much difference. The two insulators are themselves insulated, but will react if the dielectric coefficient varies greatly.
The insulating pressboard is used for making the oil gap block of the transformer coil, the iron yoke insulation of the transformer, the iron yoke pad and the pressing plate at the end of the coil, so as to ensure that the coil has a stable axial dimension
