Vacuum Pressure Impregnated

VPI transformers, a new construction concept, are suitable for installations that require particular attention to the environment, with minimum flammable material.

Specifications :

Vacuum Impregnated Dry Type Distribution Transformer.
3 phase, 50 Hz, 11kv/433v.
Reduced maintenance cost
Off-circuit tap links to provide +5% to -10% taps in steps of 2.5%.
On Load Tap Changer to provide +5% to -15% taps in steps of 1.25%.
Class F/H insulated.
Vector group Dyn11.
Continuous duty.
Copper wound.
HV side cable box.
LV side cable box/bus duct.
Painting as per IS -5 specification.
Standard fittings.
Rating and diagram plate.
Lifting lugs.
Off-circuit tap links/air Insulated on-load tap changer.
Enclosure with cooling mesh/louvers.

Features :

Designed for 25 years of trouble free performance
Design conforms to IS 2026/11171, IEC 76/726 and other international standards
Low power loss and low noise
Designed to withstand electric impulses, thermal and dynamic stresses
Optimum utilization of active materials for compactness
Modern manufacturing techniques ensure cost effectiveness and reliability
Installation close to center of load and consumption thereby saving expensive LT cable and thus avoiding voltage drop and power loss
Averts fire and prevents it from spreading