Electrical crepe insulating paper is suitable for wrapping and insulating of oil-immersed transformers, reactors and current transformers. Insulation crepe paper is one of the main solid paper materials in the oil paper insulation system of
Electrical crepe insulating paper is suitable for wrapping and insulating of oil-immersed transformers, reactors and current transformers. Insulation crepe paper is one of the main solid paper materials in the oil paper insulation system of transformers. It directly affects the quality and life of transformers. This kind of transformer paper crepe paper is made of high purity insulating wood pulp and is processed by machine from cable paper. Electrical crepe insulating paper has high strength, good elongation and neutral pH value.
What role does insulating crepe paper play in transformer leads?
Insulation crepe paper materials have two uses: the mutual insulation and capacitor medium of electrical network components (energy storage). The former requires the relative dielectric constant is small, the latter requires the relative dielectric constant is large, and both require the medium loss angle tangent is small, especially the insulation materials applied in high frequency and high voltage. In order to make the medium loss become small, it is required to use small dielectric loss angle tangent insulation materials.
1. Insulation crepe paperboard has good mechanical strength, high voltage resistance strength, smooth surface, full of toughness.
2. Insulation crepe paperboard is convenient to cut, it still maintains a certain strength in oil immersion especially after bending. This characteristic can protect the transformer lead wire from being extruded and broken, which meets the insulation requirements and meets the mechanical performance requirements.
3. Because the electrical insulating crepe paper can form oil-paper insulation combination with transformer oil. The permittivity of the two is close. It can make the electric field between them more uniform.
4. Insulation crepe paper can be bent with the lead, and will not break. This can meet its mechanical requirements.
5. Electrical insulation crepe paper plays a role in enhancing insulation. When the crepe paper is wrapped, the insulation voltage increases, especially when immersed in the insulating oil.
