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Power Transformer

Power Transformer
Power Transformer
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Product Code : 5655
Product Description
Power Transformers


Generation of electrical power in low voltage level is very much cost effective. Theoretically, this low voltage level power can be transmitted to the receiving end. This low voltage power if transmitted results in greater line current which indeed cause more line losses. But if the voltage level of a power is increased, the current of the power is reduced which causes reduction in ohmic or I2R losses in the system, reduction in cross sectional area of the conductor i.e. reduction in capital cost of the system and it also improves the voltage regulation of the system.

Because of these, low level power must be stepped up for efficient electrical power transmission. This is done by step up transformer at the sending side of the power system network. As this high voltage power may not be distributed to the customers directly, this must be stepped down to the desired level at the receiving end with the help of step down transformer. Thus electrical power transformer thus plays a vital role in power transmission.  


  • 3 phase, 50 Hz in voltages of 11kV, 22kV ,33kV, 66 kV & 110 kV
  • Off-circuit tap changer or On load tap changer
  • Class A, uniform/non-uniform insulated
  • Vector group Dyn 11, YNd 11, YNyn 0
  • Continuous duty, double copper wound
  • Painting as per IS/IEC standards
  • Both HV & LV side outdoor bushings or cable boxes
  • Cooling radiators/fans.
  • Standard fittings as per IS/IEC 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 

Optional Accessories

  • 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


  • Thermal Power Plants.
  • Power Transmission Network
  • Power Substations
  • Industries with high power requirement
  • Solar Power plants
  • Wind Farms


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