PRODUCTS
OIL IMMERSED TRANSFORMERS
The R&D team of experts continuously work on developing one of the most advanced designs to withstand shortcircuits. Oil Immersed transformers are crafted with the utmost care in workmanship & selection of quality raw materials, ensuring a long and maintenance-free life.
Features:
- Robust design to take care of frequent short circuits.
- Manufactured with prime CRGO using step-lap design for low losses along with availability of Hydraulic Core Lifting Facility
- Windings made up of Copper or Aluminum manufactured using Strip (PICC or CTC) /Wire / Foil
- Step up and Step down transformers offered.
- Low noise levels
- Various rating Type-Tested for Short-Circuit, Impulse Voltage Withstand & Temperature Rise Tests at KEMA, CPRI & ERDA.
Technical Specifications:
- Ratings: 3 phase upto 66 kV 50 MVA & 1 phase upto 33 kV 333 kVA
- Frequency: 50/60 Hz
- Applicable Standards: Latest versions of IS:1180, IS:2026, IEC:60076, ANSI 57, BS, SANS 680
- Class of Insulation : A/B
- Cooling typically as ONAN (Oil Natural Air Natural) but also available with other High Capacity Cooling options such as ONAF (Oil Natural Air Force), OFAF (Oil Forced Air Forced), OFWF (Oil Forced Water Forced), KNAN or others upon request.
- Vector Group: Any as per customer requirement like Dyn11, Yzn11, Dd0, etc.
- Insulating Fluid: Mineral Oil / Silicon Oil, both inhibited & inhibited, as per IS/IEC/ANSI/BS/SANS Standards
- Biodegradable Ester Filled Transformers also offered
- Standard Accessories as per customer specifications
Options:
- Corrugated Fin Radiators or Pressed Steel Radiators
- Sealed type or Breathing type with Conservator
- CSP (Completely Self-Protected) Type
- DGPT2/ DMCR protection device for sealed type transformers,
- Tappings: Off Circuit Tap Changer with tapping range of 5, 7 or 9 positions OR On Load Tap Changer with an Automatic Voltage Regulating & Remote Tap Change Control Panel (AVR cum RTCC Panel) with tapping range from 7 to 27 positions
- Termination: Porcelain / Cycloaliphatic / Epoxy / Touch Proof Plug-in type Bushings with option of Cable Box / Bus Duct
- RTD Temperature Sensors (analog/ digital) for alarm & trip, with options of 4-20 mA output or RS-485 for SCADA compatibility
- Option are available with long life maintenance free Breathers
- Tanks: Usually made of Mild Steel but also available of Stainless Steel
- Paint options for tanks such as Flow Painting (PU Paint), Powder Coating or Metallizing / Galvanization
SPECIAL TRANSFORMERS
We have the capacity, ability and experience to design and manufacture special transformers for specific applications that are unique in specifications and requirements with a wide range of special transformers.
Inverter Duty Transformers
- Primarily used for Solar / Wind Power Generation.
- Typical range from 1 MVA to 20 MVA.
- 3/4/5/7 Winding Inverter Duty Step up Transformers available as Oil Cooled or Dry Type Cast Resin Type.
- Designed to meet the inverter requirements in terms of vector, impedance, input voltage, etc.
- Three & Five Winding Transformers Type Tested to withstand dynamic & thermal effects resulting of a secondary Short Circuit as per IS:2026 / IEC 60076-5 from International Recognized Laboratories.
- Designed for Reduced Harmonics
- Supplied for over 3 GW Solar Plants with Over 600 installations across India & Internationally as well.
Containerized Substation Transformers
- Oil Immersed or Cast Resin Type Transformers.
- Upto 6.3 MVA (2x3.15 MVA Transformers).
- Multi Tap HV Voltage Transformers available such as 3.3-6.6-11 kV or 11-22-33 kV.
Transformers For Compact/Mini Substations
Booster Transformers
Furnace Transformers
Rectifier Transformers
DRY TYPE CAST RESIN TRANSFORMERS
Manufactured in our state of the art facility with the latest technology equipment which provides the highest quality standards. These types of transformers are resistant to temperature fluctuations. Due to its compact design, the Dry Type Transformers provide high flexibility during installation.
Features:
- Flame retardant and self-extinguishing.
- Compact & thus providing high flexibility during installation.
- High Resistance to Dynamic Circuit Stresses.
- High Impulse & High Short Circuit Strength.
- Low Partial Discharge.
- Resistant to Temperature fluctuations.
- Can be installed near to lead centre thus reduction in cable loses & better voltage regulation.
Technical Specifications:
- Ratings: 3 phase upto 33 kV 10,000 kVA.
- Copper or Aluminum Wound.
- Frequency: 50/60 Hz.
- Applicable Standards: IS:11171, IEC:60726, ANSI C.12.01, BS, SANS.
- Class of Insulation: F/H.
- Cooling: AN (Air Natural), ANAF (Air Natural Air Forced) Standard Accessories as per customer specifications.
Options:
- Tap Changer: Off Circuit Tap Links / Changer or On Load Tap Changer with RTCC Panel.
- Enclosure: IP 21 to IP 65, with cable boxes / bus ducts as per customer requirement.
- RTD Temperature Sensors for alarm & trip, with options of 4-20 mA output or RS-485 for SCADA compatibility.
