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Electrical

Electrical Insulation Pressboard

Color: Natural
0.3 Conventional size 1150*800mm
0.5 Conventional size 1150*800mm and 1M * 2M
0.8 above with mesh, conventional size 1m*2m

Description

Transformer press board is a plate material used to fix and protect transformer coils. It is usually made of insulating materials with high electrical insulation performance and high temperature resistance, which can effectively protect the transformer coils from external mechanical shock and electrical interference.

The shape and size of the transformer press board are usually designed according to the specific model and use requirements of the transformer. Its surface usually has grooves or protrusions to accommodate different shapes of transformer coils. During installation, the transformer coil is placed on the groove or protrusion of the press board, and then fixed to the transformer with fasteners.

The quality of the transformer press board has a significant impact on the performance and service life of the transformer. Therefore, when selecting the transformer press board, factors such as material, size, shape, and surface processing quality need to be considered. At the same time, during installation and use, attention should be paid to avoiding mechanical damage and electrical interference to ensure the normal operation and service life of the transformer.

In general, the transformer press board is an important component of the transformer. Its quality and performance have a significant impact on the normal operation and service life of the transformer. Therefore, when selecting and using the transformer press board, factors such as material, size, shape, and surface processing quality need to be considered, and installation and use should be carried out strictly in accordance with requirements.

 

Type: Electrical Insulation Pressboard

Color: Natural

0.3 Conventional size 1150*800mm

0.5 Conventional size 1150*800mm and 1M * 2M

0.8 above with mesh, conventional size 1m*2m

 

Insulation pressboard is made from 100% superior sulfate insulating wood pulp. High chemical purity, excellent enlonation, good Mechanical and dielectric Strength.

 

Item name unit Specification
B type
B.0.1 B.2.1  
D G D G B.3.1
Thickness tolerance ≤1.6mm % ±7.5 ±7.5 ±7.5
>1.6mm ±5.0 ±5.0 ±5.0
Tightness ≤1.6mm g/cm3 1.0~1.2 1.2~1.3 1.0~1.2 1.2~1.3 1.00~1.20
>1.6-3.0mm 1.10~1.25
>3.0-6.0mm 1.15~1.30
>6.0-8.0mm 1.20~1.30
Tensile strength MD ≤1.6mm N/mm2 80 110 80 110 100
>6.0-8.0mm 80 120 80 110 105
>3.0-6.0mm 80 130 80 110 110
>6.0-8.0mm - - - - 110
TD ≤1.6mm 55 85 55 80 75
>6.0-8.0mm 55 90 55 85 80
>3.0-6.0mm 55 80 50 80 85
>6.0-8.0mm - - - - 85
Elongation rate MD 6 7 6 7 3
TD 7 9 8 9 4
Shrinkage rate MD 0.7 0.7 0.5
TD 1 1 0.7
Thick direction 5 5 5
Oil absorption rate ≤1.6mm 15 15 10 11
>1.6-3.0mm 9
>3.0-8.0mm 7

 

Advantage:

Insulation pressboard has good mechanical strength, high electrical resistance, large tightness, small shrinkage, good flatness.

 

Application:

Insulation pressboard is used for oil-immersed transformers, capacitors, reactors and switches.

 

Notice:

1. During slitting and use, edge gaps and cracks should be prevented to avoid tearing during operation and to avoid surface scratches, oil and dust pollution.

2. Store in an environment below 40℃, keep clean and dry, away from heat sources, and avoid direct sunlight.

3. The storage period is one year. If it exceeds the storage period, it can still be used if it passes the test according to the technical requirements.

 

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