Pressboard PSP3052 (Transformer Board PSP3052)
Category:
Transformer Field
Keywords:
DESCRIPTION
PRESSBOARD PSP3052
(TRANSFORMER BOARD PSP3052)
TYPE B 3.1 IN ACCORDING TO IEC 641-1
Description
Pressboard PSP3052 (Transformer Board PSP3052) is a special product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, pressboard is excellently suited as an insulation material in electric machines, capacitors and oil-filled transformers.
Features
●Insulation class A (105 °C)
●Natural-coloured
●Hot-pressed Pressboard, 100 % sulphate pulp
●High hardness and stiffness
●Low shrinkage and compatibility
● High purity and mechanical strength
●Good compatibility with liquid dielectrics
●Further processing is ensured since the pressboard can be punched, folded,
cut and formed without difficulty.
Applications
To use as insulations material in Power and Distribution Transformers
It is the base material for components like cyclinders, strips, spacers, rings. washers, plates, machine
formed and moulded parts, punchings and laminates.
Available
Thickness: 0.80mm – 4.0mm
Sheet dimension: 1000mm x 2000mm, 2100mm x 4200mm
Special dimensions on request.
Technical Data:
|
|
Test standard |
Measured value |
Standard value |
|
Thickness tolerance |
IEC 641-2 |
≤ 1.6 mm 6.00 % |
±7.5 % |
|
> 1.6 - 8.0 mm 4.00 % |
± 5.0 % |
||
|
Apparent density |
IEC 641-2 |
≤ 1.6 mm 1.09 g/cm³ |
1.00 - 1.20 g/cm³ |
|
> 1.6 - 4.0 mm 1.15 g/cm³ |
1.10 - 1.25 g/cm³ |
||
|
Min. tensile strength M.D. unfolded |
IEC 641-2 |
≤ 1.6 mm 107 N/mm² |
100 N/mm² |
|
> 1.6 - 4.0 mm 128 N/mm² |
105 N/mm² |
||
|
Min. tensile strength C.M.D, unfolded |
IEC 641-2 |
≤ 1.6 mm 77 N/mm² |
75 N/mm² |
|
> 1.6 - 4.0 mm 83 N/mm² |
80 N/mm² |
||
|
Min. elongation M.D, unfolded |
IEC 641-2 |
3.90% |
3.00% |
|
Min. elongation C.M.D, unfolded |
IEC 641-2 |
4.10% |
4.00% |
|
Max. moisture content |
IEC 641-2 |
4.20% |
6.00% |
|
Max. ash content |
IEC 641-2 |
0.30% |
1.00% |
|
pH of aqueous extract |
IEC 641-2 |
6.3 |
6.0 - 9.0 |
|
Max. shrinkage M.D |
IEC 641-2 |
0.40% |
0.50% |
|
Max. shrinkage C.M.D |
IEC 641-2 |
0.60% |
0.70% |
|
Max. thickness shrinkage |
IEC 641-2 |
3.90% |
5.00% |
|
Min. oil absorption |
IEC 641-2 |
≤ 1.6 mm 13.7 % |
11.00% |
|
> 1.6 - 4.0 mm 10.6 % |
9.00% |
||
|
Compressibility C |
IEC 641-2 |
≤ 1.6 mm 9.4 % |
10.00% |
|
> 1.6 - 4.0 mm 5.7 % |
7.50% |
||
|
Revers. part of compressibility Crev |
IEC 641-2 |
≤ 1.6 mm 54 % |
45% |
|
> 1.6 - 4.0 mm 71 % |
50% |
||
|
Min. breakdown voltage in oil |
IEC 641-2 |
≤ 1.6 mm 50 kV/mm |
40 kV/mm |
|
> 1.6 - 4.0 mm 45 kV/mm |
35 kV/mm |
||
|
Max. conductivity of aqueous extract |
IEC 641-2 |
≤ 1.6 mm 3.3 mS/m |
5.0 mS/m |
|
> 1.6 - 4.0 mm 3.5 mS/m |
6.0 mS/m |
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