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Vacuum Pressure Impregnation Transformer

08-11 2025 | By:

Vacuum Pressure Impregnation Transformer

•The enhanced heat dissipation of VPI transformers extends their lifespan and contributes to stable performance under varying load conditions.

•Vacuum pressure casting technology of H-class epoxy resin, with lower partial discharge

•Thin insulation structure, cold and thermal shock for crack resistance

•An additional benefit of VPI transformers is their reduced operational noise. The resin impregnation helps to dampen vibrations and minimize the humming sound often associated with transformer operations.

•Vacuum Pressure Impregnated (VPI) transformers are vacuum pressure impregnated with a high temperature polyester varnish. VPI ventilated dry-type transformers are designed to meet most commercial and industrial applications.

Vacuum Pressure Impregnation Transformer

Vacuum Pressure Impregnation Transformer

Main Specification
Transformer Type vpi(vacuum pressure impregnated)
Rated capacity up to 15mva
Rated voltage up to 36kv
Frequency 50/60Hz
Phase 3 Phase
Winding material Copper /Aluminum
Insulation class H, C
Vector group YNd1d1, Dyn11, Dyn5
Cooling AN / ANAN / ANAF / AFWF
Protection Enclosure IP00 to IP54
 Class E4 C5 F1
Standard IEC, IEEE, ANSI
Accessories Fans

Enclosure

Tap changer

Temperature monitoring

Antivibration pads











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