Engineered for low electrical losses, long operational lifespans, and heavy-duty reliability in demanding industrial, commercial, utility, and renewable energy installations worldwide.
Since 2007, Sahara Transformers has established itself as an authoritative manufacturer and exporter of custom transformer solutions. Built inside state-of-the-art facilities in Pune, India, our equipment is fully compliant with stringent international frameworks including IEC 60076, IEEE C57, ANSI, and IS 1180 (Part 1) Amendment No. 1.
Every transformer undergoes rigorous routine, type, and special testing protocols—such as impulse voltage withstand tests, partial discharge analysis, winding resistance verification, and temperature rise tests—guaranteeing high insulation integrity, short-circuit withstand performance, and optimal thermal efficiency.
From standard power distribution to specialized metallurgical, solar, and dry-type applications.
Engineered for electrical substations, utility grids, and heavy-duty industrial facilities. Constructed with high-permeability Cold Rolled Grain Oriented (CRGO) silicon steel core laminations and high-purity electrolytic copper windings to ensure minimal no-load losses and maximum operational uptime.
Designed for reliable power distribution across industrial parks, commercial complexes, and municipal utility networks. Built with hermetic sealing or conservator tanks with off-circuit tap changers (OCTC) or on-load tap changers (OLTC) to minimize energy loss and maintain constant output voltage.
Engineered specifically for indoor applications where environmental cleanliness and zero fire hazard are top priorities. Epoxy resin vacuum-cast windings provide high dielectric strength, self-extinguishing fire performance (F1 grade), and moisture-proof operation for hospitals, data centers, and skyscrapers.
Custom-built for grid-connected utility solar power plants and captive solar installations. Designed with multiple secondary windings (2, 3, or 4 secondary inputs) to interface directly with solar central inverters, incorporating electrostatic shielding to isolate high-frequency harmonics and voltage surges.
Robust transformers built to handle extreme thermal, mechanical, and electrical stresses encountered in Electric Arc Furnaces (EAF), Induction Furnaces, and Submerged Arc Furnaces. Features reinforced coil bracing, high-current busbars, and motorized OLTC for precise voltage regulation during melting cycles.
Specialized phase-conversion transformers engineered to convert balanced 3-phase high-voltage power into balanced 2-phase power (or vice-versa). Eliminates phase imbalance on the primary electrical supply grid, making them critical for single-phase industrial electric furnaces, traction loads, and testing labs.
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Factory-engineered, prefabricated, and fully assembled self-contained power sub-stations. House an HT Ring Main Unit (RMU) switchgear, an energy-efficient transformer, and a low-voltage distribution panel inside a weatherproof, tamper-proof metal or GRC enclosure for rapid site commissioning.
Comprehensive overview for international project consultants, EPC contractors, and procurement engineers.
| Product Category | Capacity Range (kVA / MVA) | Voltage Class (kV) | Cooling Method | Design Standards | Primary Industry Applications |
|---|---|---|---|---|---|
| Power Transformers | Up to 10 MVA | 11kV, 22kV, 33kV | ONAN / ONAF | IEC 60076, IEEE C57, IS 2026 | Power Transmission, Electrical Utilities, Heavy Industry |
| Distribution Transformers | 25 kVA to 2500 kVA | 11kV, 22kV, 33kV | ONAN (Oil / Ester) | IS 1180, IEC 60076, ANSI | Commercial Buildings, Industrial Plants, Distribution Grids |
| Dry-Type (Cast Resin) | 100 kVA to 5 MVA | 11kV, 22kV, 33kV | AN / ANAF (Air Cooled) | IEC 60076-11, IS 11171 | Hospitals, Underground Mining, Data Centers, High-Rises |
| Solar Inverter Duty | 1 MVA to 10 MVA | 11kV, 22kV, 33kV | ONAN / ONAF | IEC 60076, IEEE C57.159 | Utility Solar PV Plants, Captive Solar Energy Systems |
| Furnace Transformers | 500 kVA to 10 MVA | 11kV, 22kV, 33kV | OFAF / OFWF / ONAN | IEC 60076-10, IS 8448 | Steel Plants, Arc Furnaces, Foundries, Smelting Operations |
| Scott Connected Units | 100 kVA to 3150 kVA | 11kV, 22kV, 33kV | ONAN / AN | IEC 60076, IS 2026 | Railway Traction, Special Industrial Heating, Testing Labs |
| Compact Substations (CSS) | 100 kVA to 2500 kVA | 11kV, 22kV, 33kV | ONAN / AN | IEC 62271-202 | Smart Cities, Urban Infrastructure, Renewable Energy Integration |
Ensuring zero-defect performance prior to global dispatch.
Every single unit built in our facility undergoes complete routine testing, including Voltage Ratio & Vector Group verification, Winding Resistance measurement, Insulation Resistance (IR) testing, No-Load & Load Loss measurement, and Separate Source Voltage Withstand tests.
Our transformer designs are type-tested and certified by NABL-accredited independent high-voltage testing laboratories for Short-Circuit Withstand Capability, Lightning Impulse Voltage performance, and Temperature Rise limits.
For international buyers, we provide heavy-duty seaworthy packaging, vacuum-sealed barrier foil wrapping, anti-corrosion coatings, and nitrogen gas padding for main tanks to guarantee safe long-distance ocean freight transport.
Contact our engineering consultation team today for custom voltage ratios, dimensional drawings, technical datasheets, and competitive export pricing tailored to your procurement requirements.