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Committed To Producing A Variety Of High-Quality, High-Performance And Multi-Variety, Used In Chemical Coatings, Motor Transformers And Other Industrial Supporting New Materials

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Add:Building1203(132),Fortune Center,NO.38 Datong Road,570100 Longhua District,Haikou City,Hainan,China
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E-mail:info@aoohan.com

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Product Name:
Insulation Paper DDP

Product Class
Product Class:OIL TYPE TRANASFORMER INSULATION SYSTEM

Insulation Paper (DDP is made by coating special modified epoxy resion on the high-performance insulating paper.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 coil drying and results in adhesion effect. As temperature rises, it starts to solidify and make coils’ adjacent layers reliably bond into a fixed unit. 

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Insulation Paper DDP is made by coating special modified epoxy resion on the high-performance insulating paper.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 coil drying and results in adhesion effect. As temperature rises, it starts to solidify and make 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.
As the resin coat of diamond pattern adhesive insulating paper is dot shaped, the paper ensures oil immersion and the discharge of gas from insulation materials, effectively prevents electric corona and partial discharge, thus ensuring the safety and reliability of insulation structure.
Product Solidification Conditions:
First keep 90℃±5℃ for three hours, and then rise temperature to temperature rises to 125℃±5℃,the product will completely solidifies after maintaining for six hours.
Storage:
Store in a dry and clean room, and keep away from fire and heat point, also keep away from the sun. The storage period is one year, qualified products exceeding the storage period can still be used.


No.

Performance

Unit

Requirement

1

Base material thickness and tolerance

mm

0.08±0.005

0.13±0.007

0.18±0.010

0.20±0.010

0.25±0.010

2

Base material tightness

g/cm³

0.85-1.10

3

Single-sided adhesive thickness

um

6-12

4

Moisture

%

4.0-8.0

5

Ash

%

≤1.0

6

Conductivity of water extract

ms/m

≤10

7

PH value of water extract

-

6.5-8.5

8

Oil absorption

%

≥20

9

Adhesive strength

Normal state

kpa

≥650
≥400

100℃±2℃

10

Contamination of transformer oil

-

No pollution(tanδ<0.001)

11

Tensile strength

MD

N/10mm

≥60
≥30

≥110   
≥50

≥160
≥70

≥180
≥80

≥230
≥100

CD

12

Tear strength

MD

mN

≥450

≥900

≥1350

≥1500

≥2000

CD

≥500

≥1000

≥1500

≥1700

≥2300

13

Breakdown Voltage

In air

kv

≥0.88

≥1.37

≥2.00

≥2.10

≥225

In oil

≥4.40

≥7.00

≥9.00

≥9.80

≥11.50

 



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Add:Building1203(132),Fortune Center,NO.38 Datong Road,570100 Longhua District,Haikou City,Hainan,China
Tel:
+86 13756597161
E-mail:info@aoohan.com

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