Gvolts Transformers Private Limited

Vadodara, Gujarat


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Cast Resin Transformer

Offering you a complete choice of products which include cast resin power transformers.

Cast Resin Power Transformers


Cast Resin Power Transformers
  • Cast Resin Power Transformers
  • Cast Resin Power Transformers
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Approx. Rs 20 Lakh / PieceGet Latest Price

Product Details:
Cooling TypeAir Cooled
Winding MaterialCopper
Insulation ClassF
Automation GradeAutomatic
Surface TreatmentColor Coated
Voltage340 - 440 V
Frequency40 - 80 Hz
Capacity11 KV
DutyDistribution Transformers, Lighting, Isolation.
Applicable StandardsIS1I171 / IEC 60726

Other Details:Price Range: Rs 3 Lakh - 20 Lakh/-

In view of the requirement of Indian Industry, we have introduced GVOLTS Cast Resin (Dry Type) Transformers. This introduction supplements our existing product viz. Vacuum Resin Impregnated Dry Type Transformers. Dry Type Transformers of both the above varieties are in use. The Company has Resin Impregnated Dry type Transformers up to 2 MVA, 11 KV Class and Cast Resin Dry type Transformers up to 2 MVA, 11 KV Class.

Manufacturing Process:
Three limb core construction is used. Core sheets conforming to drawings are made from Cold Rolled Grain Oriented (CRGO) Silicon Steel sheets. Individual sheets come duly coated with inorganic insulation. Circular Core cross section is used which is obtained by assembling number of steps of different widths. Number of steps and step widths are optimized to gain maximum advantage. Mitred joints are used between the limb plates & yoke plates. Fibre -glass tape banding hold the core tight and reduce the noise level. Treatment given to the completed core, protects it from atmospheric corrosion.

Protection:Protection against Overload/high winding temperature can be provided by Thermistors. ALARM and TRIP are provided, when required, by means of Thermistor or RTD sensors can be provided with 2 set points.

Both the H.V. and L.V. windings are made from copper conductors. Round wire, rectangular strip is used depending on current to be carried. Layer type or cross over type winding is used depending on current / voltage to be handled. Windings are cast under vacuum. On the H.V. side, inserts are provided to receive tap changing links. Inter connections between H.V. phases are obtained by links made out of copper tubes with their ends formed into lugs. These links are insulated by means of heat shrinkable tubes.

  • Ratings 25 KVA to 2000 KVA. H.V. Voltages :
  • 3.3, 6.6, 11 KV. Voltages lower than 3.3kv on request.
  • No Fire Hazard.
  • Near Load Center or even near to load.
  • Low as transformer is near to load. Also cable drop is reduced.
  • Negligible smoke generation.
  • Suitable for indoor use as no fire risk.
  • Can be fitted outdoor in IP 45 enclosure.
  • Suitable for as low as -25° C ambient temperature.
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Arvind Gadhavi (Director)
Gvolts Transformers Private Limited
354, Makarpura GIDC
Vadodara - 390010, Gujarat, India
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