Basic Info.
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Product Description
| Production name | Diamond Dotted Paper/DDP Resin Composite Polymer Electric Insulation Diamond Dotted Paper/Diamond Pattern Paper, Diamond Dotted Insulating Presspaper, Diamond Dotted paper, DDP, Double Sided, Dimaond Pattern Paper, DDPP, DPRCP, Diamond Pattern Resin Coated Paper. Varnished Paper Epoxy, Adhesive Diamond Paper, Etc. |
| Material | Krfat Paper +Insulation Paper and Resin /Cable and Epoxy Resin |
| Color | Brown |
| Usage | It is also known as DDP. The use of this B-stage resin coated paper increases the short circuit strength of distribution transformer coils. It is produced by coating modified epoxy resin in diamond dot patterns on electrical insulating paper. The size of the dots are carefully designed to avoid interfering with vacuum drying and oil impregnation. This type of presspaper is treated chemically and included nitrogen content to get a upgraded thermo performance. |
| Feature | Diamond dotted insulation paper has better dielectric properties and better mechanical properties than normal DDP paper after heat solidification. DDP diamond dotted insulation paper for transformer ddp insulating paper |
| Advantage | Diamond Dotted Paper insulating paper is an insulating material which is coated with special modified epoxy resin in diamond-shaped shape on electrical insulating paper. It is widely used in interlayer insulation and turn insulation of oil-immersed power transformer. Because the resin coating of the diamond lattice adhesive insulating paper is point-like, it ensures the immersion of oil and the discharge of gas in the insulating material, effectively avoids corona and local discharge, and thus ensures the safety and reliability of the insulation structure. |
| Sample provide | 1. We send sample A4 paper size for free 2. Customer shall bear the freight charges 3. Sample and freight charge just a show of your sincerity 4. All sample related cost shall be returned after first deal 5. It is workable to most of our clients Thanks for cooperation |
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..
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/cm3 | 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 | ||
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!!
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