Search
Products
Committed To The Power Industry, Creating A Green Future
Number of views:
1064

Diamond dotted insulation paper(DDP)

Diamond dotted 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.
Support Hotline: +86-513-88662599
Retail price
0.0
Market price
0.0
Number of views:
1064
Product ID
Quantity
-
+
Stock:
Product Description
[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[Product parameters, Parameters]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]

Diamond dotted 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

 

Keyword:
insulation
temperature
strength
Scan the QR code to read on your phone
[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[We could not find any corresponding parameters, please add them to the properties table]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]

Related Products

Messages

ZHONGLING
全部评论
已有0条评论
There is currently no content to display
Please add data record on website background.
ZHONGLING

ZhongLing Power Technology

Products

All categories

Follow us

中菱电力

Mobile Station

中菱电力

Wechat

Copyright ©  2021  ZhongLing Power Technology.    Powered by 300.cn    苏ICP备10073151号

Copyright ©  2021  ZhongLing Power Technology.

Powered by 300.cn    苏ICP备10073151号