• facebook
  • sns04
  • twitter
  • linkedin
Call Us: +86-838-3330627 / +86-13568272752
English
page_head_bg

Manufacturer for Electrical Insulating Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F

Manufacturer for Electrical Insulating Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F

short description:


Product Detail

Product Tags

Related Video

Feedback (2)

With our leading technology at the same time as our spirit of innovation,mutual cooperation, benefits and development, we are going to build a prosperous future alongside one another with your esteemed enterprise for copper braid flexible bus bar, Copper Laminated Flexible, Copper Tinned Busbar, We always stick to the principle of "Integrity, Efficiency, Innovation and Win-Win business". Welcome to visit our website and do not hesitate to communicate with us. Are you ready? ? ? Let us go!!!
Manufacturer for Electrical Insulating Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F Detail:

D279 is made from DMD and special epoxy heat resistant resin. It has the characteristics of long storage life,  low curing temperature and short curing time. After being cured, it has excellent electrical properties, good adhesive and heat resistance.The heat resistance is Class F. It is also called as Prepreg DMD, pre-impregnaed DMD, flexible composite insulation paper for dry transformers.

D279 DMD(1)
D&F D279 pre-impregnated DMD

Product Features

D279 epoxy pre-impregnated DMD has excellent electrical properties, good adhesive and heat resistance.

Applications

D279 epoxy pre-impregnated DMD is used for layer insulation or liner insulation of low-voltage copper/ aluminum foil winding in dry-type transformers as well as slot insulation and liner insulation in Class B and F electric motors and electric appliances. It is also called as Prepreg DMD, Prepreg insulation composite paper for dry type transformers.

image4
D279 epoxy prepreg DMD
image5

Supply Specifications

Nominal width：1000 mm.

Nominal weight: 50±5kg /Roll.

The splices shall not be more than 3 in a roll.

Color: white or red color.

Appearance

Its surface should be flat, free of uneven resin and impurities affecting performances. While being de-coiled, its surface shall not be conglutinated each other. Free of such defects such as creases, bubbles and wrinkles.

Packing And Storage

D279 should be wrapped with plastic film then put in clean & dry carton

The storage life is 6 months at temperature of below 25℃ after leaving factory. If the storage duration is over 6 months, the product can still be used when being tested to be qualified. The product should be put and/or stored upright and keep away from fire, heat and direct sunshine.

Technical Performances

The standard performance values for D279 epoxy pre-impregnated DMD are shown in table 1 and the typical values are shown in table 2.

Table 1:  Standard Performance value for D279 epoxy Prpreg DMD

No. Properties Unit Stand values
1 Nominal thickness mm 0.16 0.18 0.20 0.23 0.25
2 Thickness tolerance mm ±0.030 ±0.035
3 Grammage (for reference) g/m2 185 195 210 240 270
4 Tensile strength (MD) N/10mm ≥70 ≥80 ≥100
5 Dissolvable resin content g/m2 60±15
6 Volatile content % ≤1.5
7 Dielectric strength MV/m ≥40
8 Shear strength under tension MPa ≥3.0

Table 2:  Typical performance values for D279 epoxy Prepreg DMD

No. Properties Unit Typical values
1 Nominal thickness mm 0.16 0.18 0.20 0.23 0.25
Thickness tolerance mm 0.010 0.015
2 Grammage (for reference) g/m2 186 198 213 245 275
3 Tensile strength (MD) N/10mm 100 105 115 130 180
4 Dissolvable resin content g/m2 65
5 Volatile content % 1.0
6 Dielectric strength MV/m 55
7 Shear strength under tension MPa 8

Application and Remarks

Recommended curing conditions

Table 2

Temperature（℃） 130 140 150
Curing time（h） 5 4 3

Production Equipment

We have two lines, the production capacity is 200T/month.

image6
image8
image7
image9

Product detail pictures:

Related Product Guide:
Our firm promises all consumers with the first-class products as well as most satisfying post-sale services. We warmly welcome our regular and new consumers to join us for Manufacturer for Electrical Insulating Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F , The product will supply to all over the world, such as: Ecuador, Armenia, Ottawa, We take measure at any price to attain essentially the most up-to-date gear and procedures. The packing of nominated brand is our a further distinguishing feature. The solutions to assure years of trouble-free service has attracted a great deal customers. The goods are obtainable in improved designs and richer variety, they're produced scientifically of purely raw supplies. It accessible in a variety of designs and specifications for the selection. The newest forms are much far better than the previous one and they're extremely popular with several clients.
A good manufacturers, we have cooperated twice, good quality and good service attitude.
5 Stars By Honorio from Costa Rica - 2018.06.18 19:26
The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.
5 Stars By Sharon from Plymouth - 2018.02.12 14:52

Related Products

Hit enter to search or ESC to close