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Suzhou Jufeng Electrical Insulation System Co., Ltd.

Fire Retardant Solvent-Free Submerging Resin manufacturer / supplier in China, offering Jf-9952-1 Environmental-Friendly Fire Retardant Solvent-Free Submerging Resin for Transformers, Stator Coil, Wind Driven Coil and so on.

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Supplier Homepage Product Insulation Jf-9952-1 Environmental-Friendly Fire Retardant Solvent-Free Submerging Resin for Transformers

Jf-9952-1 Environmental-Friendly Fire Retardant Solvent-Free Submerging Resin for Transformers

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Product Description
1. Description
The product mainly composed of modified heat resistant unsaturated polyester, fire retardant resin, environmental-friendly active diluents, multiple auxiliary agens, etc. It is featured in fire retarding, fast curing, little volatilization, light odor,
strong permeability, long period of storage, good technological adaptability, etc. The product is featured in high bonding strength, high mechanical strength, moisture resistance and mold proof as well as the good compatibility with electromagnetic wires, Nomex paper, pre-submerged materials, etc. being a new generation of environmental-friendly Grade H insulating resin specific for dry-type transformers.
2. Technical parameters of the product
S/N
Names of Properties
Testing Conditions
Unit
Target Values
1
Appearance
Bare eye observation
--
Light brown and yellowish transparent liquid
No mechanical impurity
2
Viscosity
#4 viscosity meter 23±1
s
3060
3
Density
25±2
g/cm3
1.05±0.05
4
Gel time
140±2
min
515
5
Thick layer curing capability
140±22h
--
Reaching S1.U1.I2.2
6
Electric strength
Normal state
155±2
180±2
MV/m
≥22
≥20
≥18
7
Volume resistivity
Normal state
after submerged in water for 24h180±2
Ω·m
≥1×1012
≥1×1011
≥1×108
8
Bonding strength
(Spiral coil method)
Normal state
N
≥80
9
Medium consumption factor
Normal state
Thermal state
%
≤1.0
≤3.0
10
Dielectric constant
Normal state
----
≤3.5
11
Fire retardancy
-----
Grade
FH1
12
Stability in storage
60±296h
Times
≤1

3.Application process for reference
3.1 Common submerging process
Pre-baking of the workpiece∶120 ~ 130         2h ~ 3h
Varnish submerging∶40 ~ 50           20min ~ 30min      
Dripping of varnish∶ Room temperature       ≥1h
Drying∶155 ~ 165        5h ~ 8h
3.2 Vacuum pressuring submerging process
Pre-baking of the workpiece∶  100 ~ 120       1h ~ 2h
Vacuuming of workpiece ∶                   ≤100Pa
Vacuum retaining∶                   ≥0.5h
Varnish feeding∶ workpiece 40 ~ 50    --
Pressurizing∶                   0.4 MPa ~ 0.6MPa
pressure retaining∶                   ≥0.5h
pressure releasing∶                   0.2MPa
Re-varnishing∶                   --
Dripping of varnish∶ Room temperature         ≥1h
Drying∶155 ~ 165      5h ~ 8h
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