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Transformer Pressboard

Transformer Pressboard

Country/Region china

Company Sanhua Group Co.,ltd.

Categories Water Air Coolers

Update 2012-05-29 18:19:01

ICP License Issued by the Chinese Ministry

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Insulation for transformers Pressboard Class 2|- Pre-compressed Press Boards|Laminated Pressboard: from 100% Unbleached sulphate wood-pulp. Cardboard makes which on the intermittent type board machine .
Its characteristic is: Material free of strain,very flat , thickness even, the surface smooth, the mechanical strength high, has the obdurability and the electric insulation.We supply pressboard in sheets and presspaper in rolls as well as componentsof pressboard for production of output transformers and distributiontransformers.
Components and insulating sheets of pressboard are used inoil-cooled power transformers and distribution transformers primarily due totheir high purity, mechanical strength and optimal oil-impregnability. Thecomponents formed of pressboard, such as angle rings, snout segments and endleads, enable an exact adaptation to the electric field conditions prevailing inthe transformer.
Especially in the sector of high field strengths, thedimensional stability and good dielectric features are of great advantage.Special forming and pressing procedures are employed in the manufacturingtechnology of the pressboard components.

PB2(Pressboard Class2):Thickness:0.100.130.180.250.380.500.801.001.602.002.503.00.mm
PI2(Coil Insulating Paper Class2):Thickness 0.030.040.050.060.0750.080.090.100.130.180.250.38mm
Heat Resistant Papert for Insulating "HPI-Green":Thickness 0.05 , 0.075 , 0.08mm
Diamond Dot Paper:Thickness 0.08 0.13 0.18 0.25 0.38mm
size:1000mm*2000mm@0mm*1000mm/1200mm*2400mm

typeB.3.1
StandardGB/T19264.3-2003/IEC60641-3-1:1992
Apparent density1.0-1.25g/cm3
Thickness0.8-4.0mm
Moisture content 
Surfacewire marks
Raw material100%Unhleached sulphate pulp
ApplicationStrips,cylinders,spacers,plates,supports ect.
SpecialMaterial free of strains,very flat,highest mechanical and electrical strength.

Technical specificationUnitSpecificationTesting way
Thicknessmm0.0±0.05
0.80±0.05
1.00±0.05
1.50±0.05
2.00±0.05
2.50±0.05
3.00±0.05
GB451.3
Density No more thang/cm30.7GB451.2
Tensile strengh
No more than
Everage valve
of ND and CMD
0.50
0.80
1.00
1.50
2.00
2.50
3.00
KN/m8
13
16
24
31
39
27
GB453
Fold strengh
No more than TH 1.0mm
time200GB1538
Straigtness CMD
>TH 1.0mm
>TH 0.5mm
mNm5
13
GB2679.3
PH of aqueous extract 6.0-7.5GB1545
Moixture content%10.0±2.0GB462

Special sizes and thicknesses upon request process insulation compenents for construction part and Hand-moulded special shape Components as:End Ring Clamping Ring ,Bushing,Tubes,Fan-angle,insulating Angle Caps etcs


Product Tags:

insulating oil transformer

      

distribution transformer bushing

      

dielectric strength of transformer oil

      
China Transformer Pressboard

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