Negotiable
The date of payment from buyers deliver within days
Shanghai
Long-term effective
2019-04-15 12:11
497
googletg(Mr.)
Shanghai
No.281-289 Lixin Road.Fengxian area.Shanghai.China.
expoxy resin Electric transformer Insulation Diamond Dotted Paper (DDP)
Kraft paper is abailable with both sides of diamond dotted pattern expoxy resin, which is cnsisted of 9.5mm x 9.5mm diamonds with 15.9mm center spacing.
It is to be used in oil-immersed transformers for the insulation between the coils. The dotted epoxy resin melts at high temperature.Diamond dotted electrical materials insulating paper.is produced by coating modified epoxy-resin in diamond-dotted patterns on electrical insulating paper.This design improves the mechanical strength of oil-immersed transformer winding without reducing partial discharge levels. It is suitable for turn-to -turn insulation of coil wires on oil-immersed power transformers and suitable for layer insulation of coils on distribution transformers.
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).
Product Technical Data:
No. |
Property |
Unit |
Specification and Parameter |
|||||
1 |
Nominal Thickness |
mm |
0.08 |
0.13 |
0.18 |
0.38 |
0.5 |
|
2 |
Thickness Tolerance |
mm |
±0.005 |
±0.007 |
±0.010 |
±0.020 |
±0.030 |
|
4 |
Density |
g/mm3 |
0.85-1.10 |
|||||
5 |
Single Thickness |
μm |
10-15 |
|||||
6 |
Moisture Content |
% |
4.0-8.0 |
|||||
7 |
Oil Absorption |
% |
≥60 |
|||||
8 |
Bond Strength |
Normal |
kpa |
≥60 |
||||
100°C±2°C |
≥60 |
|||||||
9 |
Pollution for Transformer Oil |
|
No pollution(Δtanø<0.001) |
|||||
10 |
Tensile Strength |
Lengthwise |
N/10mm |
≥60 |
≥110 |
≥160 |
≥180 |
≥230 |
Crosswise |
≥30 |
≥50 |
≥70 |
≥80 |
≥100 |
|||
11 |
Tearing Strength |
Lengthwise |
Mn |
≥450 |
≥900 |
≥1350 |
≥1500 |
≥2000 |
Crosswise |
≥500 |
≥1000 |
≥1500 |
≥1700 |
≥2300 |
|||
12 |
Breakdown voltage |
Air |
kV |
≥0.88 |
≥1.37 |
≥2.00 |
≥2.10 |
≥2.25 |
Oil |
≥4.40 |
≥7.00 |
≥9.00 |
≥9.80 |
≥11.50 |
|||
13 |
Curability Condition |
~ |
Heat to 90±5℃, keep 3 hours until temperature to 125±5℃, keep 6 hours until curing |
|||||
14 |
TI |
~ |
105℃ (Class A) |
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