High Quality Factory Price Diamond Dotted Paper DDP Paper for Transformers

• Customization: Available
• Application: Transformer, Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Switch Baseplate
• Color: Brown
• Model NO.: DDP paper
• Material: Paper
• Maximum Voltage: 20KV~100KV
• Thermal Rating: A 105
• Thickness: 0.05mm -0.5mm
• Width: 1000mm or Upon Request
• Package: Pallet
• Delivery Time: 15-20days
• Type: Insulation Paper
• Chemistry: Organic Insulation
• Classification: Organic Insulating Material
• Certification: ISO9001
• Brand: Chr
• Transport Package: Pallet
• Specification: 0.05MM - 0.5MM
• Trademark: CHR
• Origin: China
• HS Code: 4811410000
• Production Capacity: 20mt/Week

Product Description

Product Description

 

Description
Diamond dotted insulation paper is made of electrical insulating paper coated with heat curable epoxy resin, the epoxy adhesive is applied to both sides of the paper in a diamond pattern consisting of 9.5mm x 9.5mm diamonds with 15.9mm center spacing It is a kind of material with inertia, dry and no conglutination at normal temperature (below 30 degree C). The Diamond Dotted Paper will make the electric conductor forever felt up as a hard unit under the high temperature by its internal latency substance. when the temperature is rising up to 90 degree C. The Diamond Paper begins one-off thaw and then one-off solidification .When to keep the temperature at 90 degree C for 90 minutes, the epoxy resin would paste on neighboring cable and paper safely. The felt intensity is as high as to 70psi at 100 degree C (The value at least is equal to 0.275Mpa, America standard)
 
Features
? Insulation class A (105 °C) according to according to IEC 641
?Kraft paper, 100% sulphate pulp
? High purity and mechanical strength
?Color natural
?Baked enamel coating: Epoxy resin , rhombic, one or both sides
?Good compatibility with liquid dielectic after the baked enamel coating has hardened.
?Care should be taken that the that the layers to be baked remain closely pressed against each other during baking time
 
Applications
It is to be used in oil-immersed transformers for the insulation between of coils .On the insulation layer, there is a layer dotted epoxy resin that will be changed with high temperature change that is to be called as felt
 
Available
Thickness: 0.05mm - 0.35mm
Both in roll and sheet are available
Width: 650mm - 1350mm

 

Number

Index

Unit

Standard

Index

Unit

Standard

1

Thickness &tolerance

mm

0.08±0.005 0.13±0.007 0.18±0.010 0.20±0.010 0.25±0.010

2

Density

g/cm3

0.85~1.10

3

Adhensive thickness of single side

μm

10~15

4

Water content

%

4.0~8.0

5

Oil absorbency

%

≥20

6

Adhensive strength

Ordinary state

kPa

≥650

100ºC±2ºC

≥400

7

Pollution for transformer oil

-

Pollution-free(tan∮<0.001)

8

Tensile strength

MD

N/10mm width

≥60

≥110

≥160

≥180

≥230

CD

≥30

≥50

≥70

≥80

≥100

9

Tear Index

MD

Mn

≥450

≥900

≥1350

≥1500

≥2000

CD

≥500

≥1000

≥1500

≥1700

≥2300

10

Breakdown

In air

KV

≥0.88

≥1.37

≥2.00

≥2.10

≥2.25

In oil

≥4.40

≥7.00

≥9.00

≥9.80

≥11.50

 

Detailed Photos