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Epoxy resin cast dry-type transformers with epoxy glue (potting compound) formulations of the principle of design: the use of epoxy resin WuxiHuiLong pouring 9600GA/9600GB In addition to the dry-type transformer with good mechanical properties, anti-short-circuit capacity, and insulation level high moisture-proof, fire-retardant, self-extinguishing,strong characteristics, but also has a low loss, low noise, small volume Bureau beautiful appearance and so on.
Several dry-type transformer insulating materials commonly used to introduce and contrast the performance of dry-type transformer, one of the most critical technology is the choice of insulating materials, and their many varieties, a number of commonly used insulating materials, heat insulation and temperature levels as follows :
Grade heat-resistant insulation material dielectric constant name εο volume resistivity (Ω / cm)
Inorganic Materials C 3.0-5.0
Glass fiber C 5.0-6.0
A 4.5 General fiber paper
|

Epoxy resin cast dry-type power transformer
|
Polyester resins, Chatham A-F 3.1-3.2
A 3.1-drying polyester film state of 1 × 1010
SMC, DMC F 4.5-5.5 dry state of 1 × 1010
H dry ether modified state board 1 × 1010
Polyamines - N H 6 dry state board 1 × 1010
F 4.6 resin dry state of 1 × 1010
Heat insulation material with the highest level of the relationship between temperature heat insulation level AEBFHNC
Maximum working temperature (℃) 105 120 130 155 180 200 220
Licensing HuiLong epoxy resin cast dry-type transformers with epoxy glue (potting compound) 9600GA/9600GB performance of the products as follows:
Electrical equipment for high voltage control equipment (dry-type transformers, insulators) and so on, with excellent heat resistance, crack resistance, and heat conductivity, long-term insulation equipment.
Item
|
Unit
|
Determination of conditions
|
Physical properties
|
9600GA+9600GB
|
9600GBA
|
9600GBB
|
9600GYA
|
9600GYB
|
Appearance |
-
|
25℃
|
Black liquid |
Light yellow transparent liquid |
Light yellow liquid |
Light yellow transparent liquid |
Density |
g/cm3
|
25℃
|
1.78
|
1.20
|
2.01
|
1.20
|
Viscosity |
Pa·s
|
25℃
|
-
|
0.05
|
-
|
0.07
|
A , B liquid ratio |
-
|
质量比
|
100/20
|
100/17
|
The initial mixed viscosity |
Pa·s
|
25℃
|
12.2
|
36
|
Can use the time (double viscosity) |
℃/hrs
|
-
|
60/>1.5
|
40/>7
|
Curing conditions
|
℃/h
|
-
|
100/3+130/5
|
150/8
|
Glass transfer point |
℃
|
DSC
|
108
|
105
|
Dielectric (insulation) Intensity |
KV/mm
|
25℃
|
>25
|
>25
|
Permittivity |
-
|
50Hz
|
25℃
|
3.76
|
3.90
|
100℃
|
3.87
|
4.06
|
Dielectric loss
|
%
|
50Hz
|
25℃
|
0.81
|
0.40
|
100℃
|
1.77
|
2.47
|
Volume resistivity
|
MΩ·m
|
DC500V
|
25℃
|
>1×107
|
>1×107
|
100℃
|
>1×106
|
>1×106
|
Note: The above data 9600GA/9600GB characteristics of the typical data for customers reference and can not guarantee that a particular client under the conditions of the data measured with exactly the same.