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Suzhou Jufeng Electrical Insulation System Co., Ltd.

Jf-520 Insulating Pads manufacturer / supplier in China, offering Jf-520 Insulating Pads, Stator Coil, Wind Driven Coil and so on.

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Jf-520 Insulating Pads

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Product Description

1.Description
    Insulating pads applied to transformers is formed through molding under high temperature and high valtage, which uses glass fibers to reinforce unsaturated polyester molding compound (DMC). The molding pads are featured in smooth surface, uniform colors and beautiful appearance, showing excellent mechanical performances. Its strength is higher than epoxy resin pouring pads which greatly enhanced the stability of transformers. As the excellent performances of DMC, it is featured in excellent electric performances, low shrinkage rate, flame resistance, arc resistance and high resistance to appearance of marks caused by electric-leakage, etc. It can be applied for a long-term period under 155.
2.Technical parameters of the product
S/N
Name of the targets
Unit
Target values
1
Density
g/cm3
1.751.95
2
Moisture absorbing rate
mg
≤20
3
Bend strength
MPa
≥90
4
Impact strength (No cracks)
kJ/m2
≥30
5
Electric strength (90  in transformer oil)
MV/m
≥12
6
Volume resistivity
Normal state
MΩ.m
≥1×1013
After submerged in water for 24 h
≥1×1012
7
Arc resistance
S
≥180
8
Index of resistance to appearance of marks caused by electric-leakage
V
≥600
9
Inflammability
Grade
FV0
10
Heat distortion temperature
≥240
 
3.Common specifications insulators of insulating pads are as follows (other specifications can be manufactured by building molds in accordance with customers requirements):
Lengthmm
Widthmm
Heightmm
95
50
506070
100
50
3065
105
50
507085
115
65
30
120
50
657075
120
60
4050110
120
5095
50
130
50
405090
140
60
70
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