Transformer Kraft Paper DDP Resin Diamond

This design improves the mechanical strength of oil-immersed transformer winding without reducing partial discharge levels. It is suitable for turn-to -turn insulation of coil wires on oil-immersed power transformers and suitable for layer insulation of coils on distribution transformers.

Product Details

This is product id manufactured from insulation press paper and partially coated with epoxy resin on one or both side. The dots are arranged to have diamond pattern consisting of 9.5mm*9.5mm diamonds with 15.9 center spacing. 

ddp for transformer

This design improves the mechanical strength of oil-immersed transformer winding without reducing partial discharge levels. It is suitable for turn-to -turn insulation of coil wires on oil-immersed power transformers and suitable for layer insulation of coils on distribution transformers.

PropertyUnitValue






Thicknessmm0.080.130.150.180.200.250.300.35---0.50
mil35678101415-20
Densityg/cm30.85~1.10






One side coatingum6~12






Moisture content%4.0~8.0






Ash content%≤1.0






Water extraction of Electrical conductitymS/m≤10






PH Water extract
6.5~8.5






Oil absorption%≥20






Bond strengthKpa≥650






Tensile strength N/10mmTD60100110130160200≥250
MD3050557080100≥120

BDVKV0.881.371.502.002.102.25≥2.50

DDP Diamond dotted paper


Welcome to contact Haotai, which is one of best transformer kraft paper ddp resin diamond manufacturers and suppliers in China, you can also get transformer kraft paper ddp resin diamond free sample from our factory.

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