PRODUCTS

Pre-compressed pressboard, Transformer insulating paper board , Precompressed Press Board

Transformer Presspaper:
It is made 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 . Used in oil-cooled power transformers and distribution transformers primarily due to their high purity, mechanical strength and optimal oil-impregnability. The components formed of pressboard, such as angle rings, snout segments and end leads, enable an exact adaptation to the electric field conditions prevailing in the transformer. P ack :sheet size:1000X2000mm、1400X1100mm、1400X2000mm, Color:red ,green,Nature Thickness:0.10,0.13,0.18,0.25,0.38,0.50,0.80,1.00,1.60,2.00,2.50,3.00.4.00mm
PI2(Coil Insulating Paper Class2):Thickness 0.03,0.04,0.05,0.06,0.075,0.08,0.09,0.10,0.13,0.18,0.25,0.38mm
Heat Resistant Papert for Insulating "HPI-Green":Thickness 0.05 , 0.075 , 0.08mm
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.products through ISO 9001.UL,SGS certification.

                  
Application:

 

  Index. Unit Values
≤1.6 >1.6~3.0 >3.0
1 Nominal thickness tolerance % ≤10(±)
2 Nominal Grammage g/cm3 1.00~1.20 1.00~1.25 1.15~1.30
3 Shear strength,M.D. Mpa ≥100 ≥105 ≥110
4 Shear strength,C.M.D. Mpa ≥75 ≥80 ≥85
5 Elongation (M.D.) % ≥3.0
6 Elongation (C.M.D.) % ≥4.0
7 Shrinkage % ≤10.0 ≤7.5 ≤5.0
8 Shrinkage which would resume % ≥45 ≥50 ≥50
11 Shrinkage:  M.D. % ≤0.5
C.M.D. ≤0.7
Thickness direction ≤4.0
12 Moisture content % ≤6.0
13 Ash content % ≤1.0
14 Electrical conductivity of aquesous extract ms/m ≤1.6 >1.6~3.0 >3.0
15 Aquesous extract (PH) 6~9
16 Oil absorption % ≥11.0 ≥9.0 ≥7.0
17 Voltage resistant strength(In air) MV/m ≥12 ≥11 ≥10
18 Voltage resistant strength(In oil) MV/m ≥40 ≥35 ≥30