- Nantong Rizhi Electric Power Material Co.,Ltd
- China Manufacturer with main products:Diamond dotted insulation paper(DDP) ,Epoxy resin coated insulation paper ,Electrical insulation crepe paper ,Electrical insulation crepe paper tube ,Oil duct strip ,DMD(Dacron-Mylar-Dacron) ,NMN ,SHS ,Epoxy resin pre-preg DMD ,Electrical composite polyester film ,Electrical composite coaming board ,PMP
Home > Products > Diamond dotted insulation paper DDP > thickness 0.08mm to 0.5mm diamond dotted insulation paper for transformer coil
thickness 0.08mm to 0.5mm diamond dotted insulation paper for transformer coil
- 10000000 Kilogram / Kilograms per Month
- Shanghai
- T/T
- 7 days
- Wenzhou Yika 7.2KV High Voltage Fuse 63 Amp
- 3240 Epoxy Board, High-quality Insulation Material, Flexible Customization, Widely Applicable 3240 Epoxy Sheet
- Chinese Factory Electrical Insulation Brown 3025 Phenolic Bakelite Resin Cotton Cloth Fabric Laminate Board Sheet Phenolic Board
- 4x8 fiberglass sheets g10 epoxy glass fiber board g10 material
- Factory Price Bakelite Decorative HPL Press plates bakelite sheet
- Black G10 Sheet - High Quality Carbon Fiber G10 FR4 Sheets - Precision-made PCB Materials
Product Details
Brand Name: | Rizhi | Place of Origin: | China | Model Number: | DDP |
Material: | Other, electrical insulation paper | Type: | Insulation Paper | Application: | High Voltage |
Rated Voltage: | ≥22KV (In oil) | Tensile Strength: | ≥400N/10mm width |
Product Description
Diamond dotted insulation paper(DDP)
Diamond dotted insulation paper (DDP) is made by coating special modified epoxy resion on the high-performance and low dielectric loss insulating paper.It is widely applied in inter-layer insulation and turn insulation of oil-immersed power transformers. During application, the coated layer starts to melt under certain temperature in the process of coil drying and results in adhesion effect. As temperature rises, it starts to solidify and make coils’ adjacent layers reliably bond into a fixed unit. The adhesive strength of epoxy resin is strong enough to prevent the displacement of coil layers in case of short-circuit, so as to ensure the long-term mechanical and electrical performance of insulation structure.
As the resin coat of diamond pattern adhesive insulating paper is dot shaped, the paper ensures oil immersion and the discharge of gas from insulation materials, effectively prevents electric corona and partial discharge, thus ensuring the safety and reliability of insulation structure.
Product Solidification Conditions
First curing under temperature 90℃±5℃ for 3 hours, and then rise temperature to 125℃±5℃ and keep 6 hours to cure;curing in accordance with the privision of both parties is also available.
Storage
Store in a dry,clean and well-ventilated warehouse, and keep away from fire and heat point, also keep away from the sun. The storage period is one year, qualified products exceeding the storage period can still be used.
Specification
No. | Property | Unit | Requirements | |||||||
1 | Base material thickness and tolerance | mm | 0.08±0.005 | 0.13±0.007 | 0.18±0.010 | 0.20±0.010 | 0.25±0.010 | 0.38±0.020 | 0.50±0.030 | |
2 | Base material tightness | g/cm³ | 0.85~1.10 | |||||||
3 | Single-sided adhesive thickness | um | 5~15 | |||||||
4 | Moisture | % | 4.0~8.0 | |||||||
5 | Ash contant | % | ≤1.0 | |||||||
6 | Conductivity of water extract | mS/m | ≤10 | |||||||
7 | PH value of water extract | - | 6.5~8.5 | |||||||
8 | Oil absorbtion | % | ≥20 | |||||||
9 | Bonding strength | Normal | kPa | ≥650 | ||||||
100℃±2℃ | ≥400 | |||||||||
10 | Contamination of transformer oil | - | No pollution(tanδ<0.001) | |||||||
11 | Tensile strength | MD | N/10mmWidth | ≥60 | ≥110 | ≥160 | ≥180 | ≥230 | ≥250 | ≥300 |
CD | ≥20 | ≥35 | ≥55 | ≥60 | ≥70 | ≥120 | ≥150 | |||
12 | Tear strength | MD | mN | ≥450 | ≥900 | ≥1350 | ≥1500 | ≥2000 | ≥3500 | ≥5000 |
CD | ≥500 | ≥1000 | ≥1500 | ≥1700 | ≥2300 | ≥4000 | ≥6000 | |||
13 | Breakdown Voltage | In air | kV | ≥0.88 | ≥1.37 | ≥2.00 | ≥2.10 | ≥2.25 | ≥3.00 | ≥4.00 |
In oil | ≥4.40 | ≥7.00 | ≥9.00 | ≥9.80 | ≥11.5 | ≥15.00 | ≥20.00 |
Contact Us
- Nantong Rizhi Electric Power Material Co.,Ltd
- Contact nameShirly
- AddressHai'an Nantong,Jiangsu
- 3025 Micarta Linen Phenolic Cotton Canvas Bakelite Sheet
- Electrical insulation Epoxy Resin fiber glass tube g10 g11 fr4 epoxy fiberglass tube
- Factory hot sale laminate fr4 g10 good Quality Black High 4x8 Fiberglass Sheets plate with BOM/One-stop service
- G10 Fiberglass Sheet Knife Handle Materials 6mm g10 knife handle material
- High Quality G10 Insulated Material Epoxy Glass Fiber Laminated G10 Sheet
- China Silicone Thermal Pad Distributor for LED Lamp CPU GPU Cooling
- Wholesale Customized thermal conductive gap filler for GPU CPU Cooling
- Hot selling 7W thermal silicone Insulation Pad for gpu cpu cooling pad 0.5mmT Low thermal resistance
- 7W/mK Wholesale Customized Thermal Conductive Silicone Insulation Pad
- Thermal Silicone Insulation Pad For GPU CPU Cooling Pad Low Thermal Resistance
- High Performance Silicone Cooling Pad with Dual Self-Adhesive Films for PC Laptop RAM
- High Durability Ultra Soft Thermal Interface Materials For Automotive Electronics
- Outstanding Thermal Performance Conductive Pads for DVD-Rom Cooling
- China Wholesaler Street Lights Thermal Conductive Pad For LED Street Lamp
- High quality Impeller key Generator QFSN-330-2 for Indonesia Power Plant
- High quality Insulating sleeve (outer) Generator QFS-300-2 for Vietnam Thermal Power
- epoxy glass cloth resina epoxica fiberglass laminate fr-4 plate
- China factory FR-4 aluminum copper clad laminate sheets
- FR-4 laminate sheet Epoxy Glass G10 glass fiber sheet
- Fr4 Epoxy Glass Board For Electrical Insulation 0.2mm-60mm
- Fr4 Fiberglass Reinforced Polyester Sheet
- Professional Thermal Conductive Pad for LED TV and LED-lit Lamps
- 5.0W/mk Outstanding thermal performance silicone pads for Set top boxes
- 5.0mmT High Durability Conductive Pads for Heat Pipe Thermal Solutions
Popular Searches
Find Similar Products By Category
- Electronic Components & Supplies > Electronic Accessories & Supplies > Insulation Materials & Elements
- Buy on GoldSupplier.com
- How to Buy
- Browse by Catagories
- Browse by Hot Regoins
- Private Sourcing Events
- Sell on GoldSupplier.com
- How to Sell
- Post Products
- Manage Products
- Manage Groups
- About
- About Us
- Link to Us
- Contact Us
- Sitemap
- Please Enter your Email Address
- Please enter the content for your inquiry.
We will find the most reliable suppliers for you according to your description.
Send Now-
Shirly
Welcome to my shop! Glad to serve you!Please send your question!
Your message has exceeded the limit.
Your message has exceeded the limit.
-
-
Your inquiry content must be between 20 to 5000 characters.Send Now.
-
Please input the mailbox.
-