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Electrical Insulation kraft paper is a very critical in transformer insulation system. Hanyao is always ready to serve you with best quality and competitive prices. Kraft paper is manufactured from 100 % wood pulp. The high level of impurity ensures superior reliability and long lifespan even under harsh environment. Using only raw materials with highest purity, all Hanyao paper is produced to provide superior mechanical and electrical properties. We are also processing this paper into other critical insulation materials like DDP,edge strip... If you are looking for this material from China, please contact us without hesitation! Stock is always available.
| Properties | Units | Values | |||
| Thickness | μm | 80 | 130 | 170 | |
| Thickness Deviation | μm | ±5.0 | ±7.0 | ±10.0 | |
| Density | g/cm3 | 0.85~0.95 | 0.85~0.95 | 0.85~0.95 | |
| TensileStrength | MD | N/mm | 6 | 11 | 14 |
| TD | 3.2 | 5.2 | 7 | ||
| Elongation | MD | % | ≥2.0 | ≥2.0 | 2.0 |
| TD | ≥5.4 | ≥5.4 | ≥5.4 | ||
| Tearability CrossMachine | mN | ≥540 | ≥1080 | ≥1390 | |
| Folding EnduranceCross Machine | times | ≥1800 | ≥2200 | ≥2500 | |
| Breakdown Voltage | kV/mm | 8 | 8 | 8 | |
| Conductivity ofAqueous Extract | mS/m | ≤8 | ≤8 | ≤8 | |
| PH of water extract |
|
6.5~8.0 | 6.5~8.0 | 6.5~8.0 | |
| Air Permeability | μm/(Pa ·s) | ≤0.510 | ≤0.510 | ≤0.510 | |
| (ml/min) | -30 | -30 | -30 | ||
| Ash Content | % | ≤0.7 | ≤0.7 | ≤0.7 | |
| Moisture Content | % | 6-8 | 6-8 | 6-8 | |
| Storage Conditions | It should be stored in the dry, clean, and good ventilation,temperature less than 40℃,no fire warmer, no exposure in sun. | ||||
| Packaging | Roll | ||||
Disclaimer: The performance figures, parameters, and features described are typical values under specific test conditions and may vary in actual applications. They do not constitute a warranty or guarantee of performance under all conditions. Users are responsible for verifying the suitability of the product for their intended application.
1.Electrical Insulation kraft paper is A class insulation material which is able to withstand temperature upto 105℃.
2.The high purity provides long-term performance.
3.It has both excellent electrical and mechanical strength, ensuring stability of transformer winding.
4. It is used as insulation between coils in power transformer, also provides insulation for power cables or other electrical parts.
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