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Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer
  • Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer
  • Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer
  • Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer
  • Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer
  • Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer

Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer

Place of Origin China
Brand Name JT-RESIN
Certification SGS,CE,UL
Model Number JT8968
Product Details
Shape:
Iiquid
Color:
White
Industry:
Electrical Insulator
Thermal Class:
H
Application Environment:
High Temperature
Name:
Epoxy Electrical Insulation System
Process:
Conventional Vacuum Self Gravity Casting
Proportioning:
100:100
High Light: 

Epoxy Resin Casting Compound

,

Electric Insulation Epoxy Resin Casting

,

Electric Insulation Liquid Epoxy Resin

Payment & Shipping Terms
Minimum Order Quantity
25KG
Price
$3/kg
Packaging Details
1200kgs/pail
Delivery Time
5 days
Payment Terms
L/C, T/T, Western Union, MoneyGram
Supply Ability
200Ton/week
Product Description

PRE-FILLED CASTING EPOXY RESIN COMMPOUND ON ELECTRIC INSULATION FOR DRY TYPE TRANSFORMERS

THE CLIENT'S PRODUCT:

 

 

Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer 0Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer 1

 

TDS:

 

Electrical Insulation Materials

 

 

JT 8869A Epoxy Resin 100 pbw

JT 8869B Epoxy Hardener 100 pbw

 

 

Liquid, Hot-curing cast resin system for outdoor electrical insulation material for medium and high voltage applications.

 

 

Dry type transformer and instrument transformer

 

Applications

 

 

Conventional casting with stage wise curing, or pressure gelation or Processing methods

Automatic pressure gelation casting (PG or APG process).

 

 

 

 

Properties

Long pot life

Excellent mechanical performance

Excellent crack resistance

 

 

Hubei Jiangte Insulation Composite Guangzhou Jiangte Insulation Composite Add:No.219,Zhanghua Rd(N),Economic & Development Add:Rm606,DongHong International Plaza, No.

Zone of Qianjiang City, Hubei Province, China. 113, Chebei Rd, Tianhe District, Guangzhou,China.

Tel:+86-728-6201068 Tel:+86-20-82320316

Fax:+86-728-6202066 Fax:+86-20-82315407

JT 8869A Prefilled Liquid and Solvent free Epoxy resin

TYPICAL VALUES*

Viscosity @ 25℃, mPa.s [ ISO 2555: 1989].....................................................................9-16

(tested by Brookfiled instrument)

 

Density @ 20℃ , g/cm3 [g-Kugel] ...........................................................................1.55-1.22

 

Filler content, %(Pbw)...................................................................................................47-52

 

 

JT 8869B Prefilled Liquid modified and accelerator Epoxy hardener

TYPICAL VALUES*

Viscosity @ 25℃, mPa.s [ISO 2555:19890]....................................................................15-25

 

Density @ 20℃, g/cm3 ISO2811-2:1997...............................................................1.79-1.86

Filler content, % Pbw......................................................................................................60-65

 

 

 

 

 

Remark JT 8869B contains accelerator. Prolonged storage at high ambient temperatures results in an undesirable increase in its viscosity and impairs the reactivity of the Casting Resin system.

JT 8869B is sensitive to moisture. Partly emptied containers must be resealed immediately.

 

 

 

Storage The components have to be stored under dry conditions at 5 - 25°C, in tightly sealed

original containers. Under these conditions, the shelf life will correspond to the expiry

date stated on the label. After this date, the product may be processed only following

reanalysis. Partly emptied containers should be closed tightly immediately after use.

For information on waste disposal and hazardous products of decomposition in the

event of fire, refer to the Material Safety Data Sheets (MSDS) for these particular products.

 

 
       

 

 

 

 

 

Process data (guideline values)

General instructions for preparing liquid resin systems

Long pot life is desirable in the processing of any ARALDITE casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important. Proper mixing will result in:

• better flow properties and reduced tendency to shrinkage

• lower internal stresses and therefore improved mechanical properties on object

• improved partial discharge behavior in high voltage applications.

For the mixing of medium- to high viscous Epoxy casting resin systems and for mixing at lower temperatures, we recommend special thin film degassing mixers that may produce additional self-heating of 10-15 K as a result of friction. For low viscous Epoxy casting resin systems, conventional anchor mixers are usually sufficient. The prefilled Epoxy resin and Hardener can be stored at elevated temperature (about 60°C) for up to about 1 week, de-pending on formulation. Intermittent agitation during storage is advisable to prevent filler sedimentation.

 

Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. The required vacuum is 0.5 to 8 mbar. The vapour pressure of the individual components should be taken into account.

For the viscosity and gel-time data at different temperature, refer to figure 4.1&4.4

 

System Preparation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mould temperature

Automatic pressure gelatin(APG) process 140-160℃

Conventional vacuum casting 70-100℃

 

Demoulding time(depends on mould temperature and casting volume) 10-40min

Conventional vacuum casting 5-8h

 

Curing condition

APG process(shortest after-curing) 4h at 130℃ or 3h at 140

Conventional vacuum casting 12h at 130℃ or 8h at 140℃

 

It is necessary to test the spicemen to judge its performance, or to test glass transition temperature. Different gelatin and curing procedure may result in different cross-link and glass transition temperature.

 
 

 

 

Process data (guideline values)

Process viscosity

1.png

Fig4.1: viscosity increasing at 55℃( tested by Brookfiled)

 

 

 

Electric Insulation Epoxy Resin Casting Compound Liquid For Dry Type Transformer 3

 

Gelatin/Curing time

 

2.png

Fig4.4: gel-time changes as per temperature

 

 

     

 

  Mechanical and Physical Properties (guideline value)

 

Determined on standard specimen at 23°C

Cured for: 6h at 80°C + 4h at 100°C+6h 130°C

 

 

TYPICAL VALUES*

Glass transition temperature (ISO 11357-2:1999), ℃ ...............................................65-75

 

Tensile Property, [ISO R 527]

Tensile strength, at 23℃, MPa..................................................................................68-78

Elongation at break, % ..............................................................................................1.8-2.0

E modulus from tensile test, MPa .....................................................................8000-9000

 

Flexural Property, [ISO 178:2001]

Flexural strength, at 23℃, MPa.............................................................................110-125

Elongation, % ............................................................................................................ 1.5-1.7

E modulus from flexural test, MPa ............................................................... ....8,000-9,500

 

Fractural toughness test, [PM216-1989]

Critical stress intensity factor, K1C (MPa.m1/2) ......................................................2.0 - 2.4

 

CTE, TMA, ppm/K ………………………………………………………………………………………...……………40-43

 

Water absorption (10 days @23℃), %, [ISO 62] ...................................................0.15–0.20

 

Density @ 20℃, g/cm2, [DIN 55990] ………………........................................................1.65-1.85

 

 

 

 

 

 

 

 

 

 

Electrical Properties (guideline values)

Breakdown strength IEC60243-1, 50HZ KV/mm 22-25

0.png

 

 

   

 

 

 

 

Industrial hygiene

When operating and processing products, must follow the industrial hygiene standards.

For more information, please refer to the corresponding safety data sheet and .

 

Operating protection measures

Workplace safety measures:

Protective clothing Need

Gloves Must need

Arms to protection May contact with the skin, Recommended

Goggles/safety glasses Need

Mask/dust mask Recommended

 

Skin protection:

Before working To exposed skin protection by cream

After washing Frost of besmear protective cream or nutrition

Contamination of the skin clean With suction paper wipe, wash with warm water and alkali free soap, With a one-time towel dry. Do not use solvents.

Clean workshop environment Use a light paper covering the table and chairs. Using a

disposable beaker, etc. Spatter material processing Use sawdust or waste cotton silk blotting, and placed in a plastic woven baskets.

Ventilation:

To workshop Take a breath three to five times per hour.

To position Cover of exhaust fan. The operator should avoid inhalation of vapour.

 

First aid

When the eyes by resin and curing agent and the contamination of castable, immediately with a clean, running water rinse 10 to 15 minutes. To see a doctor. Touch or splash on the skin material to erase, and then clean with water pollution areas (see above). If severe pain or burn, want to see a doctor. Dirty clothes to replaced immediately.

Discomfort caused by inhalation of vapors, want instantly remove outdoor. If in doubt, please inquire the medical help.

Last revised:2016-01

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