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- New insulating materials for transformers
- Coils made this paper are able to withstand axial short circuit forces far better than coils made with uncoated papers
- Helps minimize corona failure caused by a spark discharge through air entrapped between layers of insulating or within the insulating itself
- Widely used in electrical equipments such as mutual inductance machine, transformer etc. as layers insulating materials
- Available Width : 625mm, 960mm, 1020mm
- Tested under IEC 554 ( Part 2 ) 2001
Typical properties of Diamond Dotted Paper |
| Specified Properties |
Units |
Standard |
| Thickness Tolerance |
Mm |
0.08 , 0.13 , 0.17 , 0.20 ,0.25 |
| Density |
g/mm^3 |
0.95 – 1.15 |
| Tensile strength Min |
N/mm^2 |
MD 70 – 90
CMD 40 - 50 |
| Elongation Min |
% |
MD 2.0 – 3.0
CMD 7.0 – 9.0 |
| Breakdown volume Min |
KV/mm |
In air 11-12
In oil 45-50
|
| Oil Absorption Min |
% |
8 |
| Moisture Content |
% |
4.0-8.0 |
| Resin’s Content Min |
% |
7 , 6 , 5 , 4 , 3.5 |
| Ash Content Max |
% |
1.0 |
| Adhesion Strength Min |
kPa |
450 |
| dp |
|
1000 |
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