China China wholesale Class H Insulation Paper Nhn - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F manufacturers and Exporter

China wholesale Class H Insulation Paper Nhn - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F

short description:

Product Detail

Product Tags

Feedback (2)

High quality Very first,and Shopper Supreme is our guideline to offer the most beneficial company to our clients.Nowadays, we're hoping our best to be certainly one of the top exporters in our area to satisfy consumers additional will need for flexible insulation paper, China Copper Bus Bars Manufacturer, Electrical Insulation Bus Bar, We are highly aware of quality, and have the certification ISO/TS16949:2009. We are dedicated to supply you high quality products with reasonable price.

China wholesale Class H Insulation Paper Nhn - 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:

That has a positive and progressive attitude to customer's interest, our organization consistently improves our products quality to satisfy the demands of shoppers and further focuses on safety, reliability, environmental specifications, and innovation of China wholesale Class H Insulation Paper Nhn - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F , The product will supply to all over the world, such as: Buenos Aires, Florence, Mauritius, We'll supply much better products with diversified designs and expert services. We sincerely welcome friends from over the world to visit our company and cooperate with us on the basis of long-term and mutual benefits.

6641 F-Dmd Electrical Insulating Paper Composite Material