The role of insulating crepe paper in oil-immersed transformers

There are many types of insulating paper used in transformer windings. In oil-immersed transformers, it is of course necessary to use insulating crepe paper, but the quality of the insulating crepe paper must be ensured. Find a professional manufacturer to buy suitable insulation paper. Manufacturers with advanced technical equipment and professional production personnel can produce high-quality insulation paper, which is recognized by experts and deeply trusted by users.

What are the characteristics of insulating crepe paper or paper tubes for oil-immersed transformers?

1. Intrinsic dielectric strength

The insulating crepe paper tube produced has a lower dielectric constant, resulting in a more uniform electric field distribution between the insulator and the cooling medium.

2. Thermal stability

The UL material temperature rating of electrical crepe paper is 220 degrees, which means it can maintain effective performance for more than 10 years even if it is continuously placed at 220 degrees.

3. Mechanical toughness

The crepe paper tube product has high strength, good elasticity, tear resistance and abrasion resistance, and the thinner product is flexible.

4. Chemical compatibility

Insulated crepe paper tubes are resistant to most solvents and have strong acid and alkali resistance. It is compatible with all varnishes, adhesives, transformer oils, lubricants and freezers. It is also undamaged by insects, fungi and mold.

5. Electrical crepe paper is not sensitive to humidity.

6. Radiation resistance

Crepe paper used in transformers remained largely unaffected even by ionizing radiation intensities of up to 800 MRAD and maintained its mechanical and electrical properties after eight irradiations.

7. Non-toxic and fire-resistant

This kind of insulating paper or paper tube does not melt in the air and does not support combustion.

Insulating crepe paper may be used for the main insulation board; interlayer insulation for foil or plate conductors; lead insulation for low or high voltage leads, and uninsulated or insufficiently insulated insulation from the burner to the bushing or other terminals;