Electric Power Transformer

Key Features

  • High efficiency (above 98%) with low losses (as per IEC/ANSI standards)
  • Customizable voltage ratings (step-up or step-down)
  • Robust copper or aluminum windings
  • Cooling systems: ONAN, ONAF, or forced air/oil cooling
  • Hermetically sealed or conservator-type oil tank design
  • Temperature monitoring & overload protection
  • Eco-friendly mineral or ester oil insulation (optional)
  • Anti-corrosive body for outdoor/harsh environment
  • Low noise operation and vibration-dampened core
  • Long operational life (20–30 years)

Technical Specifications

Parameter Specification Range
Rated Capacity 100 kVA – 10 MVA
Voltage Levels 11/0.4kV, 33/11kV, 132/33kV (or custom)
Frequency 50 Hz
Phase 3-phase (Single-phase optional)
Vector Group Dyn11, Yyn0, Yd11, etc.
Insulation Class Class A, B, or F
Cooling Type ONAN / ONAF / OFWF / Dry Type
Winding Material Copper / Aluminum
Impedance 4% – 12.5% (as required)
Standards Compliance IEC 60076, ANSI C57, BSTI
Protection Buchholz relay, PRV, Breather, OLTC/OLR

An Electric Power Transformer is an essential electrical device used to transfer electrical energy between circuits through electromagnetic induction. It ensures voltage level adjustment—either stepping up (increase) or stepping down (decrease)—to meet grid, industrial, or building power needs. These transformers are designed for high efficiency, reliability, and safety in continuous operation.

Applications

  • Power Utilities (REB, DESCO, DPDC, PGCB)
  • Industrial Plants & Factories
  • High-rise Commercial Buildings
  • Data Centers and Hospitals
  • Solar and Wind Power Grid Integration
  • Substations and Distribution Networks
  • Export Processing Zones (EPZs)

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