UNIMAG POWER Transformer

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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

Optional accessories :

  • Winding temperature scanner with alarm and trip contact
  • Forced ventilation
  • Low power loss and low noise
  • Remote tap changer control cubicle for OLTC transformers
  • Neutral current transformer
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