VPI Dry Type Distribution Transformer – Power Star image image

VPI Dry Type Distribution Transformer (VPI Dry Type Transformer)

RANGE : Upto 3000 KVA in 11 KV Class.


Power Star offer technologically advanced range of Dry Type VPI (Vacuum Pressure Impregnated) Transformers with Off Circuit Tap Links (up to 3000 KVA in 11 KV Class.), using CRGO M3 to M5 MOH Lamination and Electrolytic Grade 99.9% pure copper. These transformers are designed for trouble-free performance, confirming to IS – 2026 with low power loss and low noise. Use of modern manufacturing techniques and optimum utilization of active materials ensures cost effectiveness, reliability and a long trouble-free performance.

Power Star Ventilated Dry Type Transformer are fitted in enclosure for Indoor installations and are totally maintenance free and safe from fire as the material used is metal, ceramic, NOMEX and resin. It is environment friendly as there is no oil, hence handling becomes easier and there are no chance of spillages and leakage and there is minimal nontoxic smoke in case of fire. Use of Class ‘F’ / ‘H’ insulation increases the heat bearing capacity and enables the use of the transformer in humid and chemically polluted atmosphere also.


Fire safety and environmental aspects are of increasing importance. The substitution of oil filled transformers by dry type transformers is one of the most important steps towards it. VPI transformer is used when it has to be located near load centre and in a fire hazardous place. Special type of fire resistant insulation is used for the windings, thus reducing the fire risk considerably.

Standard Specifications

Capacity Up to 3000 KVA
No. of Phases 3 Phase
Frequency 50 Hz.
Voltage Range 11 KV
Tapping ± 5% Taps on H.T. Side in steps of 2.5% each.
Insulation Class ‘F’ / ‘H’
Vector Group Dyn 11
Duty Cycle Continuous
Winding Copper Wound
Terminals As per required

Standard Fittings for Dry Type Distribution Transformers

Winding temperature Indicator Cable Box on H.V. / L.V. Side.
Lifting lugs Uni directional rollers

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