Diamond dotted insulating paper (DDP)/insulating paper/insulation material for transformer winding

Diamond Dotted insulation paperName of goods:Diamond Pattern Paper, Diamond Dotted Insulating Presspaper, Diamond Dotted paper, DDP, Double Sided Diamond Pattern Resin Coated Paper DimensionsThickness(mm) ---0.08mm, 0.13mm ,0.18mm , 0.20mm  0.25mm ,0.35mm  ,0.40mmWidth (mm)---.625 ,960,1000,1020,125

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Diamond Dotted insulation paper


Name of goods:
Diamond Pattern Paper, Diamond Dotted Insulating Presspaper, Diamond Dotted paper, DDP, Double Sided Diamond Pattern Resin Coated Paper 


Dimensions
Thickness(mm) ---0.08mm, 0.13mm ,0.18mm , 0.20mm  0.25mm ,0.35mm  ,0.40mm
Width (mm)---.625 ,960,1000,1020,1250 
We also can produce Width of DDP according to customer's requirements
Roll Diameter--- 280-330mm
Core Diameter --- 76±2mm
 

Diamond pattern adhesive insulating paper is a type of insulation material coating special modified epoxy resin one electrical insulating materials. It is widely applied in inter-layer insulation and turn insulation of oil-immersed power transformers. During application the coated layer starts to melt under certain temperature in the process of coildrying and results in adhesion effect. As temperature rises, it starts to solidify and makes coils' adjacent layers reliably bond into a fixed unit. The adhesive strength of epoxy resin is strong enough to prevent the displacement of coil layers in case of short-circuit. so as to ensure the long-term mechanical and electrical performance of insulation structure
 

Product Solidification conditions: firstly ,temperature rises to 125±5ºC after maintaining 90±5ºC for three hours and then the product completely solidifies after maintaining for six fours


 

ITEMTYPICAL VALUESMATTER OF FACT
Caliper:  (inch)
         (millimeter)
0.007
0.178
Thickness: mm0.18±0.018mm+0.010.187
(0.186,0.189,0.185)
Width: mm1220±5mm1219-1222
Apparent density: g/cm30.97-1.051.01
Moisture content ,4.0 to 8.04.66
PH water extract: 6.5 to 8.57.75
Elongation  MD  
          CMD
≥2.0
≥5.4
2.8
8.5
Edge Internal tearing resistance N
Machine direction:
Cross machine direction
  
63.5
70.3
Tear strength, MN
Machine direction:
Cross machine direction:
 
≥1350
≥1500
 
2240
2600
Conductivity of aqueous extract
Ms/m
≤8.06.7
Ash content,    maximum≤0.70.55
Coating thickness per side mm0.006 to 0.0120.011
Tensile strength, N/mm2 
Machine direction:
Cross machine direction:
 
80
35
 
87.6
49.6
Dielectric breakdown:
(volts/layer ,dry test)
≥14001653
(1680,1660,1620)
Bond strength: Kpa450kpa726

Diamond Dotted Insulation Paper (DDP) /Insulation Paper/Heat Insulation Material for Transformer Winding
Diamond Dotted Insulation Paper (DDP) /Insulation Paper/Heat Insulation Material for Transformer Winding
Diamond Dotted Insulation Paper (DDP) /Insulation Paper/Heat Insulation Material for Transformer Winding



 

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