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Fuwang Home >> Products >> Presspaper/Pressboard >> Pressboard >> Transformer Board
Transformer Board

   1. COMPOSITION AND PRESENTATION
    Laminated paperboard is made of High-quality transformer board with casein, polyester resin or phenolic resin impregnated sheet by hot pressing process. Mainly used as the insulating parts in the field of oil transformer.

    2. PROPERTIES & APPLICATIONS
    Material free of strains, very flat, highest mechanical and electrical strength, usually used as the insulating parts for oil transformer. It widely applied in strips, cylinders, spacers, plates, supports etc.

    3. MAIN TECHNICAL CHARACTERISTICS
    Table1°™mm

Thickness
Width
Length
 
5.0°™100mm
1000mm
2000mm
1350mm
2500mm
--
--

    Table 2

Properties
Unit
Value
A
B
C
Density
g/cm3
1.15-1.35
Water content
%
<8.0
<6.0
°‹6.0
Shrinkage
MD
%
<0.5
<0.5
°‹0.5
CMD
<0.7
<0.7
°‹0.7
Ash content
%
<0.8
<0.8
<0.8
Ration of absorption oil
%
>11
>8.0
°›9.0
Tensile strength
LW
Mpa
°›100
°›100
°›100
CW
°›85
°›85
°›85
Compression strength
LW
Mpa
°›125
°›145
°›120
CW
°›90
°›100
°›70
Moisture content
 
°‹6
°‹6
°‹6
Conductivity of aqueous extract
ms/m
<11
<8.4
<8.0

 
 
 
 
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