Insulation Material Diamond Dotted Paper DDP Paper for Transformers

Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate
Type: Insulation Paper
Chemistry: Inorganic Insulation
Material: Paper
Thermal Rating: Below 35
Maximum Voltage: 20KV~100KV

Products Details

  • Overview
  • Product Description
  • Detailed Photos
Overview

Basic Info.

Model NO.
Diamond Dotted Paper
Classification
Inorganic Insulation Material
Certification
ISO9001
Color
Brown
Brand
Chr
Thickness
0.05mm-0.5mm
Width
1000mm or Upon Request
Storage Life
1 Year
Delivery Time
15-20days
Transport Package
Pallet
Specification
ISO9001 SGS
Trademark
Chr
Origin
China
HS Code
4811410000
Production Capacity
20mt/Week

Product Description

Product Description


Description
Diamond dotted insulation paper is made of electrical insulating paper 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 x 9.5mm diamonds with 15.9mm center spacing It is a kind of material with inertia, dry and no conglutination at normal temperature (below 30 degree C). The Diamond Dotted Paper will make the electric conductor forever felt up as a hard unit under the high temperature by its internal latency substance. when the temperature is rising up to 90 degree C. The Diamond Paper begins one-off thaw and then one-off solidification .When to keep the temperature at 90 degree C for 90 minutes, the epoxy resin would paste on neighboring cable and paper safely. The felt intensity is as high as to 70psi at 100 degree C (The value at least is equal to 0.275Mpa, America standard)
 
Features
? Insulation class A (105 °C) according to according to IEC 641
?Kraft paper, 100% sulphate pulp
? High purity and mechanical strength
?Color natural
?Baked enamel coating: Epoxy resin , rhombic, one or both sides
?Good compatibility with liquid dielectic after the baked enamel coating has hardened.
?Care should be taken that the that the layers to be baked remain closely pressed against each other during baking time
 
Applications
It 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
 
Available
Thickness: 0.05mm - 0.5mm
Both in roll and sheet are available
Width: 1000mm,  1220mm,  1330mm or upon request


DATA SHEET:
Number Index Unit Standard
1 Thickness &tolerance mm 0.08±0.005
0.13±0.007
0.18±0.010
0.20±0.010
0.25±0.010
2 Density g/cm3 0.85~1.10
3 Adhensive thickness of single side μm 10~15
4 Water content % 4.0~8.0
5 Oil absorbency % ≥20
6 Adhensive strength Ordinary state kPa ≥650
100ºC±2ºC ≥400
7 Pollution for transformer oil   - Pollution-free(tan∮<0.001)
8 Tensile strength MD N/10mm
width
≥60 ≥110 ≥160 ≥180 ≥230
CD ≥30 ≥50 ≥70 ≥80 ≥100
9 Tear Index MD Mn ≥450 ≥900 ≥1350 ≥1500 ≥2000
CD ≥500 ≥1000 ≥1500 ≥1700 ≥2300
10 Breakdown 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

Detailed Photos

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