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OLTC Distribution Transformer

OLTC Distribution Transformer
OLTC Distribution Transformer
Product Code : 04
Product Description

OLTC Distribution Transformer

We are an organization known for making high-quality OLTC Distribution Transformer. Built by using superior quality raw materials and under the supervision of skilled and experienced staff, our outdoor high voltage transformers offer higher endurance and efficiency levels. Owing to our enriched experience in making transformers, our transformers are high in demand among various domestic and international markets.

Features of Distribution & Power Transformer:

  • Upto 150 kva Single phase both 11 & 33 Kv class
  • Upto 40 MVA, 66 Kv class
  • Upto 20 MVA OLTC 33 Kv class


Applicable Standards:



Transformer Options:

  • Cooling tubes, radiators, and corrugated tanks
  • Pole mounted or ground mounted
  • Free breathing or hermetically sealed
  • CSP and Non-CSP
  • Winding-copper/aluminum (foil/rectangular wire/ground wire)
  • Fittings and accessories, cable
  • Terminations: As required



  • Tested as per IS: 2026, BS - 171, IEC - 76 & IEC - 726


Vector Group:


  • Transformers will be connected as per vector group reference Dyn 11


Terminal Arrangement:

  • H. V - bar bushings or cable box
  • L. V. - bar bushings
  • Cable box
  • Disconnecting chambers can also be provided on both HV and LV cable boxes


Temperature Rise:

  • Transformers are designed for a maximum temperature rise 40/50ÂșC of oil and winding
  • Lower temperature rise can be offered on request


Standard Fittings:

  • Rating and diagram plate
  • Earthing terminals - 2 nos
  • Lifting lugs
  • Oil level indicator (plain)
  • Drain-cum bottom filter valve with plug
  • Oil filling hole with plug on conservator
  • Oil conservator with drain plug
  • Air release plug
  • Silica gel air breather
  • Bi-directional flat rollers
  • HV terminals-outdoor bushings
  • LV terminals-outdoor bushings
  • Radiators
  • Filter valve with plug
  • Thermometer pocket
  • Oil temperature indicator
  • Externally operated off circuit tap changing switch
  • Explosion vent
  • Sampling value (for 2000 Kva & above transformers only)


Accessories on Request:

  • LV and HV cable boxes
  • Winding temperature indicator (WTI)
  • Buchholz relay
  • Magnetic oil level gauge
  • Marshalling box
  • Disconnecting chamber
  • Oil temperature indicator with electrical contacts (OTI)
  • Pressure relief valve

Additional Information:

  • Minimum Order Quantity: 1 Unit


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