Specifications transformer Diamond Dotted Insulation Paper
1. Made by electrical insulating paper, diamond-shape epoxy resin
2. High quality
transformer Diamond Dotted Insulation Paper is made of electrical insulating paper with diamond-shape epoxy resin dotted in both sides. The epoxy resin used in D.D.P contains a kind of incubative hardener material, it is day and crisp material at normal temperature. transformer Diamond Dotted Insulation Paper has good dielectric properties and good mechanical properties after being heat-solidification. It can be used as insulation material for coils and between layers of oil immerged power and distribution transformers transformer Diamond Dotted Insulation Paper's technical date:
DDP
Item
Index.
Unit
Value
1
Thickness and tolerance
mm
0.08±0.005/0.13±0.007 0.18/0.20/0.25±0.010
2
Density
g/cm3
0.85~1.10
3
Single thickness
μm
10~15
4
Moisture content
%
4.0~8.0
5
Oil-absorption
%
≥20
6
Bond strength
at room temp.
kPa
≥650
100°C±2°C
≥450
7
Pollution for transformer oil
-
no pollution(Δtanø<0.001)
8
Tensile Strength
lengthwise
N/10mm
≥60
≥110
≥160
≥180
≥230
crosswise
≥30
≥50
≥70
≥80
≥100
9
Tearing Strength
lengthwise
Mn
≥450
≥900
≥1350
≥1500
≥2000
crosswise
≥500
≥1000
≥1500
≥1700
≥2300
10
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
Supplier Information
Henan YAAN Electrical Insulation Material Plant Co., Ltd.