China Wholesale Price China China Manufacturer For Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F manufacturers and Exporter

Wholesale Price China China Manufacturer For Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F

short description:

Product Detail

Product Tags

Feedback (2)

We purpose to understand high quality disfigurement with the output and supply the top service to domestic and overseas buyers wholeheartedly for DMD100, Flexible Copper Foil Connector, Custom Fabricated Bus Bars, All products are manufactured with advanced equipment and strict QC procedures in order to ensure high quality. Welcome customers new and old to contact us for business cooperation.

Wholesale Price China China Manufacturer For Insulation 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.

D279 epoxy prepreg DMD

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.

Product detail pictures:

Related Product Guide:

We have been also specializing in improving the things administration and QC system to ensure that we could preserve terrific gain within the fiercely-competitive company for Wholesale Price China China Manufacturer For Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F , The product will supply to all over the world, such as: Naples, Juventus, Algeria, We have developed large markets in many countries, such as Europe and the United States, Eastern Europe and Eastern Asia. Meanwhile with the powerful predominance in persons with ability, strict production management and business concept.we constantly carry on self-innovation, technological innovation, managing innovation and business concept innovation. To follow the world markets fashion, new products are kept on researching and providing to guarantee our competitive advantage in styles, quality, price and service.

Class H Insulation Paper Nhn