Dry-type transformers, VPI Resin Impregnated are traditionally used most when space constraints, safety for people, property and the environment are the top priority.Dry-type transformer is a completely stationary solid-state device,reliable, it needs less maintenance and provides for problem-free service.Dry type transformers provide a safe with low noise and reliable consistent power source which does not require fire-proof vaults, catch basins or the venting of toxic gasses.These safety factors will allow these transformers to install in different applications where fire safety is required like schools, buildings, hospitals, factories, chemical industries etc. Further, the safety factor allows for the installation of dry type transformers inside buildings close to the load, which improves overall system regulation and reduces costly secondary line losses.

Guide to customize your Transformer requirements:

  1. Primary voltage
  2. Secondary voltage
  3. Frequency of cycle
  4. Power Rate or Capacity (kVA)
  5. Vector Group

Procurement Tip:

Always select a transformer larger than the actual load,from a safety perspective and from future expansion point of view. Calculate and arrive at the maximum load anticipated, subsequently add in factors for reasonable unplanned load growth (20% is common) and for planned additional load.

Additional factors to customizing your transformer needs:

  • Indoor or outdoor mounted, pad mounted
  • Primary voltage: Configuration delta or Star
  • Secondary voltage: Configuration delta or Star
  • Power factor and efficiency
  • Losses
  • Impedance
  • Temperature rise
  • Enclosure design (based on height, access, cooling etc.)
  • Location, space requirement& constraints
  • Seismic requirement
  • Accessories (including taps) and instrumentation
  • Basic impulse level, which is the withstand rating in kV

Reference Standards: IS 11171: 1985 & IEC 60076-11 : 2018


Give us the details , our engineering team is ready for your challenge and will design the best custom transformer


  • Switchboard Cabinets
  • Custom UPS
  • Distribution and power transformers up to 132 kv class
  • Furnace transformers ( induction and arc furnace )
  • High current rectifier transformers
  • Converter transformers
  • Earthing transformers
  • Auto transformers
  • Specialty Transformers with up to IP 68 enclosures
  • Wire harness for custom applications

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