We manufacture quality Step Up / Step Down transformers up to 10 MVA capacity in Air/Oil cooled type having various voltage and current ratings as per the relevant IS standard.

Besides all standard fittings as specified in IS standard, optional fittings such as low/high frequency, short circuit and overload protections / cutoffs can be provided as per customers requirement.

We manufacture quality Furnace Duty transformers up to 10 MVA capacity in Oil cooled type having various voltage and current ratings as per the relevant IS standard.

Besides all standard fittings as specified in IS standard, optional fittings such as low/high frequency, short circuit and overload protections / cutoffs can be provided as per customers requirement.

• Ranging up to 10 MVA Capacity, 33 KV Class
• 6/12 Pulse having Vector group DYn11 for 6 pulse & DYn11 with DD0 for 12 pulse or as per requirement
• Input - 33, 22, 11, 6.6, 3.45, 3.3, 0.415 KV or as per requirement
• Output - 415, 433, 460, 480, 525, 575, 2x575, 2x600 V or as per requirement
• Naturally cooled (ONAN) or Forced Air Cooled (ONAF)

• Transfomers available with & without tap
• Filled with ISI marked Transformer Oil
• Low losses, Heavier Designs than conventional designed transformers to accomodate harmonics generated in the system
• Suitable for induction heating and melting applications
• Accessories / Fittings as desired by Customer
• In Accordance with IS, IEC, BS and ANSI Standards, others on request

We manufacture Cast-Resin Dry Type Transformers upto 3000 KVA; 33KV class as per Indian & International Standards i.e. IS, IEC & ANSI etc. Our transformers are design to withstand high humidity, temperature, adverse service conditions & short circuit levels & all these make our products an ideal choice. Designing, selection of raw materials, state of the art Casting Plant, in house testing facility & highly experienced manpower make our products very reliable & cost competitive.

• Maintenance FreeDue to encapsulation of coils with cast resin the coils dimensions are stable & no coil tightening is required to maintain the short circuit strength. Also no check of oil level and electrical insulation/oil is required.
• Non- HygroscopicIn cast-resin dry-type transformers, the complete encapsulation of primary and secondary winding in epoxy resin prevents penetration of moisture into windings. The cast resin offers very good protection against adverse ambient conditions. These transformers can work without disruption of service at 100% humidity.
• Non Inflammable and Self ExtinguishingDue to high quality insulation material the transformer is practically non-inflammable by an electrical arc, special fire protection measures are not required.
• Resistant against Temperature FluctuationThe insulation material used is glass fibre reinforced with epoxy resin of class 'F' which can withstand wide temperature variation.
• Higher Impulse StrengthContrary to the conventional dry type transformers the cast coil transformers are better in respect of impulse voltage withstand strength.
• Higher Short Circuit StrengthHigher dynamic short circuit withstand strength as compared to oil immersed and conventional dry type transformers because of fibre glass reinforced epoxy encapsulation.
• Free of Partial DischargesNo partial discharges can occur during operation.
• Instant SwitchingDue to the high grade insulation material, coils are non hygroscopes & the transformer can be switched on directly without pre-drying even after a long period of service interruption.
• No Leakage or Pilferage of OilAs cast resin transformers are solidly cast, problem associated with oil filled transformers like oil leakage and pilferage of oil is completely avoided.
• Saving in SpaceThese transformers are generally smaller in dimensions and lesser in weights. The construction and installation cost for the sub-station can be reduced by adopting dry type transformers.
• Eco-FriendlySince no oil is used in these transformers, there are no chances of contamination of ground water due to oil leakage.
• Saving in Civil work cost and LT cablesWithout fire or danger of explosion, it is possible to place the transformers near to the load centre. Also, these transformers do not need construction of special fibre brick walls or oil pits, which reduces the overall civil works. Additionally, since LT cables are not required, thers is also saving in cost on account of expensive cable laying works.

We manufacture quality transformers up to 10 MVA capacity that have low losses & are suitable for continuous rating upto its full capacity.

Besides standard fittings as specified in the IS standard, optional fittings such as LV Bus Duct, LV cable box, HV cable box, Buchholz Relay, Marshalling box, Magnetic oil level gauge, HV Disconnecting chamber, WTI & OTI with (Trip & Alarm contacts) can be provided as per customers requirement.

Technical Specification

We manufacture quality Step Up / Step Down transformers up to 10 MVA capacity in Air/Oil cooled type having various voltage and current ratings as per the relevant IS standard.

Besides all standard fittings as specified in IS standard, optional fittings such as low/high frequency, short circuit and overload protections / cutoffs can be provided as per customers requirement.

We manufacture quality Furnace Duty transformers up to 10 MVA capacity in Oil cooled type having various voltage and current ratings as per the relevant IS standard.

Besides all standard fittings as specified in IS standard, optional fittings such as low/high frequency, short circuit and overload protections / cutoffs can be provided as per customers requirement.

• Ranging up to 10 MVA Capacity, 33 KV Class
• 6/12 Pulse having Vector group DYn11 for 6 pulse & DYn11 with DD0 for 12 pulse or as per requirement
• Input - 33, 22, 11, 6.6, 3.45, 3.3, 0.415 KV or as per requirement
• Output - 415, 433, 460, 480, 525, 575, 2x575, 2x600 V or as per requirement
• Naturally cooled (ONAN) or Forced Air Cooled (ONAF)

• Transfomers available with & without tap
• Filled with ISI marked Transformer Oil
• Low losses, Heavier Designs than conventional designed transformers to accomodate harmonics generated in the system
• Suitable for induction heating and melting applications
• Accessories / Fittings as desired by Customer
• In Accordance with IS, IEC, BS and ANSI Standards, others on request

We manufacture Cast-Resin Dry Type Transformers upto 3000 KVA; 33KV class as per Indian & International Standards i.e. IS, IEC & ANSI etc. Our transformers are design to withstand high humidity, temperature, adverse service conditions & short circuit levels & all these make our products an ideal choice. Designing, selection of raw materials, state of the art Casting Plant, in house testing facility & highly experienced manpower make our products very reliable & cost competitive.

• Maintenance FreeDue to encapsulation of coils with cast resin the coils dimensions are stable & no coil tightening is required to maintain the short circuit strength. Also no check of oil level and electrical insulation/oil is required.
• Non- HygroscopicIn cast-resin dry-type transformers, the complete encapsulation of primary and secondary winding in epoxy resin prevents penetration of moisture into windings. The cast resin offers very good protection against adverse ambient conditions. These transformers can work without disruption of service at 100% humidity.
• Non Inflammable and Self ExtinguishingDue to high quality insulation material the transformer is practically non-inflammable by an electrical arc, special fire protection measures are not required.
• Resistant against Temperature FluctuationThe insulation material used is glass fibre reinforced with epoxy resin of class 'F' which can withstand wide temperature variation.
• Higher Impulse StrengthContrary to the conventional dry type transformers the cast coil transformers are better in respect of impulse voltage withstand strength.
• Higher Short Circuit StrengthHigher dynamic short circuit withstand strength as compared to oil immersed and conventional dry type transformers because of fibre glass reinforced epoxy encapsulation.
• Free of Partial DischargesNo partial discharges can occur during operation.
• Instant SwitchingDue to the high grade insulation material, coils are non hygroscopes & the transformer can be switched on directly without pre-drying even after a long period of service interruption.
• No Leakage or Pilferage of OilAs cast resin transformers are solidly cast, problem associated with oil filled transformers like oil leakage and pilferage of oil is completely avoided.
• Saving in SpaceThese transformers are generally smaller in dimensions and lesser in weights. The construction and installation cost for the sub-station can be reduced by adopting dry type transformers.
• Eco-FriendlySince no oil is used in these transformers, there are no chances of contamination of ground water due to oil leakage.
• Saving in Civil work cost and LT cablesWithout fire or danger of explosion, it is possible to place the transformers near to the load centre. Also, these transformers do not need construction of special fibre brick walls or oil pits, which reduces the overall civil works. Additionally, since LT cables are not required, thers is also saving in cost on account of expensive cable laying works.

We manufacture quality transformers up to 10 MVA capacity that have low losses & are suitable for continuous rating upto its full capacity.

Besides standard fittings as specified in the IS standard, optional fittings such as LV Bus Duct, LV cable box, HV cable box, Buchholz Relay, Marshalling box, Magnetic oil level gauge, HV Disconnecting chamber, WTI & OTI with (Trip & Alarm contacts) can be provided as per customers requirement.

Technical Specification