Transformer Insulation Materials Electrical Grade Insulating Kraft Paper Diamond Dotted Paper DDP Paper Insulation Paper Material

Product Description

 

         

Features: DIAMOND DOTTED PAPER (DIAMOND DOTTED PAPER) is commonly known as dotted paper. It is a special modified epoxy resin in the shape of diamond coating on electrical insulation paper insulation material. It is widely used in interlayer insulation and turn insulation of oil-immersed power transformer. When used, the coating layer begins to melt at a certain temperature during the coil drying process, resulting in adhesion. As the temperature rises, it begins to cure again, so that the adjacent layers of the winding are reliably bonded into a fixed unit. The bonding strength of the epoxy resin is sufficient to prevent the displacement of each layer of the winding during short circuit, thus ensuring the long-term mechanical and electrical properties of the insulation structure..

 

INTRODUCE:Diamond Dotted Paper is made of Kraft coated with heat curable epoxy resin, the epoxy adhesive is applied to both sides of the paper in a diamond pattern consisting of 9.5mm×9.5mm diamonds with 15.9mm center spacing.Usage: DDP is primarily used as layer and winding insulation in the LV and HV coils of transformers. After curing, the partial resin coating bonds the electric conductors with the insulation, which brings about the mechanical consolidation of the coils. In this way the radial and axial forces that arise in the event of short circuit can be safely controlled.

Usage:

Diamond pattern paper made of Kraft paper coated with heat curable epoxy resin.The epoxy adhesive is applied to both sidesof the paper in a diamond pattern consisting of 9.5mm x9.5mm diamonds with 15.9mm center spacing.,the Diamond dotted Paper is to be used in oil-immersed transformers for the insulation between of coils. On the insulation layer, there is a layer dotted epoxy resin that will be changed with high temperature change that is to be called as felt. It is a kind of material with inertia, dry and no conglutination at normal temperature (below 30ºC).
The Diamond Dotted Paper (DDP) will make the electric condctor forever felt up as a hard unit under the high temperature by its internal latency substance When the temperature is rising up to 90ºC, The Diamond Pattern Paper (DDP)begins one-off thaw and then one-off solidification.
 

DATA SHEET:

Item		Unit	Value
Thickness of base material		mm	0.08±0.005	0.13±0.007	0.18±0.01	0.20±0.01	0.25±0.01
Density of base material		g/cm^3	0.85~1.10
Thickness one side adhesive		μm	10~15
Moisture		%	4.0~8.0
Oil absorption		%	≥20
Welding strength	Room temperature	kpa	≥650
	100ºC±2ºC		≥400
Pollution of transformer oil		--	No pollution (tanδ<0.001)
Tensile Strength	Perpendicular	N/10mm Width	≥60	≥110	≥160	≥180	≥230
	Parallel		≥30	≥50	≥70	≥80	≥100
Tear Strength	Perpendicular	mN	≥450	≥900	≥1350	≥1500	≥2000
	Parallel		≥500	≥1000	≥1500	≥1700	≥2300
Breakdown Voltage	In air	kv	≥0.88	≥1.37	≥2.00	≥2.10	≥2.25
	In oil		≥4.40	≥7.00	≥9.00	≥9.80	≥11.50

_{Company Profile}

     Henan jinzhi Electrical Insulation new Material Co.,Ltd is a professional electrical insulation products manufacturer since 2009, we are commited to serve and satisty with degree of excellence the needs of the manufacturing industry, we have been pursuing "Quality is Gold, Reputation is life" as our business Philosophy, and established "Jinzhi" as our brand ,we are strickly in higher standard quality control and advanced managment system, Henan jinzhi has become one of leading company in electrical insulation material filed.We have 8 production lines with 12000 tons of capacity annually, there is more than 100 styles of products which including: Electrical insulation flexible laminates, Insulation paper, Insulation film, insulation fiberglass sleeve, heat shrinkable tube,Epoxy Prepreg & Diamond Dotted Electricainsulationmaterial,Electrical Insulation Banding tape, laminated insulation sheet, Mica Board etc ,the insulation material products are mainly applied for dry-type transformers, oil-immersed transformers and motors etc, the products with excellent performance has gained SGS,ROHS,CE certificates.Henan jinzhi has acquired ISO9001 certificate.Henan jinzhi was founded based on the foundation of virtues & faith, we will be a world-wide class commercial company with the constant effort to serve our customers. our company objective is to find OEM and distributors who want and fullfill the requirements of quality and loyalty as far as the service for our business partner from overseas and domestic for mutual benefits and bright future!!

Packaging&Shipping

FAQ
1. How can I get the price?

- We usually quote within 24 hours after we get your inquiry (except weekend and holidays). If you are urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.

 

2. Can I buy samples?

-Yes. Please feel free to contact us.

 

3. What is your lead time?

- It depends on the order quantity and the season you place the order. Usually we can ship within 7-15 days for small quantity, and about 30 days for large quantity.

 

4. What is your payment term?

- T/T, Western Union, MoneyGram, and Paypal. This is negotiable.

 

5. What is the shipping method?

- It could be shipped by sea, by air, or by express (EMS, UPS, DHL, TNT, FEDEX etc). Please confirm with us before placing orders.

 

6. How do you make our business long-term and good relationship?

- We keep good quality and competitive price to ensure our customers benefit. Furthermore, we respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.