Power Transformers


  • Designed for life time trouble-free performance
  • Design conforms to Indian and International standards
  • Low power loss and low noise level
  • Designed to withstand electrical impulses, thermal and dynamic stresses
  • Optimum utilization of active materials for compactness
  • Modern manufacturing techniques ensure cost effectiveness and reliability


  • 3 phase, 50 Hz in voltages of 11kV, 22kV and 33kV
  • Off-circuit tap changer to provide any required range as per standards
  • On load tap changer to provide standard range & also custom built for any other ranges as per standards. OLTC will be internally/externally mounted as per the requirement
  • Class A, uniform/non-uniform insulated for oil cooled, Class B to Class H for dry type transformers
  • Any vector group as per standards
  • Any duty cycle as per Indian / International standards
  • Painting as per Indian / International standards
  • Both HV & LV side outdoor bushings or cable boxes
  • Cooling radiators/fans.
  • Standard fittings as per Indian / International standards
  • Buchholz relay with alarm and trip contact with shut off valves
  • Oil temperature indicator with alarm and trip contact
  • Winding temperature indicator with alarm and trip contact
  • Magnetic oil level gauge with alarm contact
  • Marshalling box to house oil temperature indicator and winding temperature indicator
  • Cooler control unit
  • Neutral current transformer

Neutral current transformer

  • Winding temperature indicator and oil temperature indicator with remote indication
  • RTDs for winding temperature measurement
  • Oil preservation system through air cell/thermosphyon filter
  • Neutral earthing bar with epoxy supports

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