Transformer DDP Oil Duct Strip With High Compaction And Dimensional Stability
Features
1. High stiffness
2. High electrical strength and low compression coefficient.
3. 100% sulphate wood pulp, Natural Coloured.
4. High Purity and mechanical strength
5. Low shrinkage and compressibility
6. Good compatibility with liquid dielectrics
7. Insulation class A (105°C)in accordance with VDE0530.
|
ITEM |
TYPICAL VALUES |
MATTER OF FACT |
|
Thickness: mm |
4mm±7.5% |
4.1-4.3mm≤7.5% |
|
Width |
5±0.5mm |
4.95-5.38mm≤0.4mm |
|
Length of 1000mm: |
±5mm |
1000±3 mm |
|
Pitch of stick centre: |
±3mm |
23±2 mm |
|
Apparent density: g/cm3 |
1.1-1.2 |
1.18 |
|
Moisture content ,% |
4.0 to 9.0% |
5.7 |
|
PH water extract: |
6.0 to 9.0 |
6.8 |
|
Ash content,% maximum |
1% |
0.51 |
|
Tensile strength Mpa |
≥90 |
107.4 |
|
Machine direction: |
≥50 |
101.3 |
|
Cross machine direction: |
||
|
Oil absorption |
≥7.0% |
12.29 |
|
Shrinkage rate% MD |
≤1.0 |
0.16 |
|
CMD |
≤1.4 |
0.25 |
|
Thickness D |
≤6.0 |
≤5 |
|
Elongation rate MD |
≥3 |
≥4.4 |
|
CMD |
≥4 |
≥4.4 |
|
Conductivity of aqueous extract Ms/m |
≤10.0 |
5.03 |
|
Dielectric breakdown:(Kv/mm )In Air |
10 |
16.7 |
|
In Oil |
24 |
35.7 |
Application:
Mainly applicable to electric cardboard for insulation and its components such as motor, electric
apparatus, meter, switch, transformer.
Advantages:
The exceptional mechanical properties of our GBS insulation material provide the required safety in the event of a short circuit. Additionally, its ability to be impregnated with oil strengthens the electromechanical properties, resulting in excellent overall insulation performance for these critical transformer components.
Applying this material will avoid the problem caused by using corrugated cardboard, such as easy deformation, displacement and other weaknesses. It can be combined closely with transformer coil and make coil possessed more excellent mechanical and electrical properties.
