Transformer
Distribution Transformer
Distribution Transformer
VACUUM PRESSURE RESIN
IMPREGNATED DRY TYPE
VACUUM PRESSURE RESIN IMPREGNATED DRY TYPE
APPLICATIONS
        At all such locations where conventional oil filled transformers present a Bafety hazards, Class 'F' & 'H' & 'C' insulated dry type transformers are most suited. Some of these location are:
1 Oil refineries
2 Chemical plants
3 Marine applications
4 Metro Railways
5 High rise buildings.
        Where the transformers are required near the load Centre to achieve better regulation and low distribution losses, Class 'F' & 'H' & 'C' insulated resin imprefnated dry type transformers find the application :
1 Steel works
2 High rise buildings.
3 marketing/Malls
         Besides some of the applications mentioned above, these transformers also find a place in underground railways.
VPI TECH. Vs Cast Resign
System Flexible System Rigid System
i) Technology VPI with FG & Nomex Cast Resin
ii) Conductor Insulation Fibber Glass / Nomex No woven polyester
iii) Thermal Rating F, H or C available as per requirement B or F available only.
Product process Conventional Winding and Assembly Cost Mould Assembly
Impregnation Vacuum Pressure Impregnation Vacuum Cost but no Impregnation
Possibility of repair Yes Possible to repair Not possible at all
Cracking & Tracking Not possible as VPI Vacuum impregnation system provides good amount of flexibility. Hence, outer surface can not devlop cracks etc. Cast Transformer Epoxy Resin, can develop cracks as co-efficient of expansion of defferent at high temperature.
Manufacturing Process
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Servo Control Voltage Stabilizers ll 1 phase Air cooled ll 3 phase Air cooled ll
3 phase Oil cooled ll Transformer ll Power Transformer ll
ll Isolation Transformer ll
ll Variable Voltage Auto Transformer (Variac) ll


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   Servo Controlled Voltage   Stabilizers
 
1 phase Air cooled
  3 phase Air cooled
  3 phase Oil cooled
 
Transformer
  Power Transformer
  
Isolation Transformer
  
Variable Voltage Auto     Transformer (Variac)
 
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