Product Description
Product Description
Name: DDP-F coated on cable paper DDF-Coated on film DD-DMD coated with on DMD
Product Description
Diamond Dotted Paper DDP
The presspahn I diamond is formed by a base of high density paper manufactured from virgin pulp printed on both sides with a thin layer of epoxy resin in state B rhomboid. The B-staged resin has been applied at low temperature in order to retain its shape but is not fully polymerized. a temperature above 105 C is required to complete the curing process.
The times and temperatures recommended process must be respected to ensure maximum strength and durability of the assembly.
To prevent premature polymerization of the resin is recommended to keep the presspahn I diamond in a cool environment at all times.
Applications:
The diamond presspahn (Diamond Dotted presspahn or DDP) is mainly used as insulation between layers of coils immersed in transformer oil. The arrangement of the rhombuses resin is such to allow oil flow between them when cured.
The presspahn diamond improves the cohesion of the winding over other systems because the epoxy resin acts as an adhesive.Technical Data
| Item |
Unit |
Index value |
| Thickness |
mm |
0.08 |
0.13 |
0.17 |
0.20 |
0.25 |
0.30 |
0.40 |
| Width |
mm |
960mm, accept customization |
| Density |
g/cm |
0.85 |
Tensile
Strength |
MD |
KN/m |
7.5 |
| CD |
3.7 |
| Breakdown voltage |
KV |
0.6 |
0.9 |
1.2 |
2.2 |
2.75 |
3.3 |
4.4 |
| Cure Temperature And Time |
---- |
Low temp. 905C3h, then high temp 1205C6h |
Detailed Photos
Application
DDP paper for Oil transformer and motors
Superior Insulation for Electrical ApplicationsEngineered for high-grade electrical insulation, Diamond Dotted Paper features an epoxy coating applied in a diamond pattern, enhancing dielectric strength and moisture resistance. Its consistent thickness and mechanical tightness make it an essential component in transformer and motor windings, ensuring reliable electrical performance.
Versatile Specifications to Suit Diverse NeedsOffered in multiple thicknesses (0.08 mm to 0.50 mm) and GSM (typically 80120), this paper supports customization for distinct electrical setups. The natural white or light brown base, coupled with the robust epoxy coating, delivers both aesthetics and functionality for demanding industrial requirements.
FAQs of Diamond dotted Paper:
Q: How is Diamond Dotted Paper typically used in electrical insulation?
A: Diamond Dotted Paper is primarily utilized as an insulating layer in transformers, motors, and electrical windings. The epoxy-coated diamond pattern enhances bonding after curing, providing secure insulation between coils and layers, which helps prevent electrical failures.
Q: What are the benefits of the epoxy resin diamond-shaped coating?
A: The epoxy resin coating arranged in a diamond pattern increases mechanical strength and provides superior electrical insulation. After curing (B-stage), the coating creates tight bonding, improves waterproofing, and boosts fire resistance, ensuring durability in harsh conditions.
Q: When should you select Diamond Dotted Paper for your application?
A: You should opt for Diamond Dotted Paper when applications demand reliable electrical insulation, mechanical strength, moisture resistance, and tight bondingespecially for transformers, reactors, or high-voltage motors.
Q: Where can Diamond Dotted Paper be sourced in India?
A: Diamond Dotted Paper is available through multiple distributors, exporters, importers, manufacturers, suppliers, and traders throughout India. You can purchase it in varying widths and thicknesses to meet specific technical requirements.
Q: What processing steps are involved in applying this insulation paper?
A: The process involves cutting the paper to the desired width and length, wrapping or layering it in the electrical system, and then curing the epoxy coating (B-stage) by exposing it to heat, resulting in firm adhesion and excellent dielectric properties.
Q: How does the papers density and thickness impact its performance?
A: With density ranging from 0.90 to 1.1 g/cm and thickness as per GSM, Diamond Dotted Paper offers tailored mechanical and dielectric properties. Selecting appropriate GSM and thickness ensures optimal insulation strength and physical robustness for each use case.
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