Manufacturing
Built for Performance • Engineered for the Future
Mahati’s approach integrates engineering precision, cutting-edge technology, and five decades of expertise. At our state-of-the-art facility spanning 15 acres, we produce transformers, reactors, and turnkey power solutions that meet the highest domestic and international quality benchmarks, ensuring reliable performance for global utilities, renewable energy projects, and industrial applications. From core coil assembly to final tanking and on-site commissioning, every step is controlled for efficiency, quality, and precision.
EHV Power Transformers
Up to 400 kV, 500 MVA
Mahati’s Extra High Voltage (EHV) Power Transformers are built for large-scale transmission networks, ensuring efficient energy transfer with minimal losses.
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Utilities & Grid Operators: Reliable high-voltage power flow across extensive networks.
Industrial Power Distribution: Supporting energy-intensive operations with stable voltage regulation.
Substation & Renewable Energy Integration – Designed for seamless connectivity with solar, wind, and hydro projects.
Our EHV transformers comply with global transmission standards and are tested for maximum operational efficiency. Ideal choice for power grids, substations, and industrial energy infrastructure worldwide.
Distribution Transformers
Up to 5000 kVA, 33 kV
Mahati’s distribution transformers ensure safe and efficient power delivery, stepping down high-voltage transmission for residential, commercial, and industrial applications.
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Low-loss design ensuring energy efficiency and cost savings.
Reliable insulation & cooling technology for operation in diverse climates and environments.
Custom-built options for international utility standards.
These transformers are widely used in global energy networks, ensuring long service life and uninterrupted power distribution.
Furnace Transformers
Up to 65 MVA, 66 kV
Mahati makes ESR, EAF, SAF, MF Induction, LRF, 12/24 pulse and multiple secondary & speciality furnace transformers, ensuring consistent performance in varying conditions.
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Steel & Metallurgical Industries:
High-efficiency transformers for electric arc furnaces (EAF) and ladle refining furnaces (LRF).Induction Heating & Smelting: Medium frequency and submerged arc furnace transformers designed for ferroalloy production and smelting.
Chemical & Heat Treatment Plants: Salt bath furnace transformers providing precise temperature control for industrial processing.
Built for high overload capacity, rapid cooling, and superior voltage control, Mahati’s furnace transformers are trusted across global manufacturing hubs.
Dry-Type Transformers
Up to 15 MVA, 66 kV
Mahati’s dry-type transformers, Cast Resin and Vacuum Impregnated, offer fire-safe, maintenance-free power solutions for high-risk environments and indoor installations.
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Cast Resin Transformers: Up to 15 MVA, 66 kV, designed for commercial infrastructure, airports, metro rail, and high-humidity environments.
Vacuum Impregnated Dry Type Transformers: Up to 10 MVA, 132 kV, ideal for renewable energy projects, oil & gas, and industrial automation.
With superior mechanical strength, low partial discharge, and enhanced environmental resilience, Mahati’s dry type transformers meet stringent international safety regulations.
Reactors: Series and Shunt
Up to 220 kV
Mahati’s series and shunt reactors play a crucial role in grid stability, power factor correction, and harmonic filtering across high-voltage transmission networks.
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Shunt Reactors :Absorb reactive power, optimising transmission efficiency and preventing overvoltage conditions.
Series Reactors: Current-limiting and harmonic filtering for industrial networks and renewable energy grids.
Designed to enhance system stability, reduce power losses, and improve power quality, Mahati’s reactors are essential for modern high-voltage energy infrastructure worldwide.
Special Purpose Transformers
These include locomotive transformers, multiple-secondary IDT, high-voltage testing kits for large generators (1000 MV), flux testing equipment, and stator dry-out power supplies.
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Autotransformers: Cost-effective voltage regulation solutions for step-up/down applications in industrial networks.
Inverter Duty Transformers: Designed to support 1, 2, 3, 4, or 5 windings, ensuring seamless integration with renewable energy projects, industrial drives, and advanced power conditioning systems.
Locomotive Transformers (Traction Transformers): Engineered for electrified railway systems, ensuring stable and efficient traction power in high-speed, freight, and metro rail networks globally.
Each transformer is designed for high thermal endurance, low noise, and optimised efficiency, making it an ideal fit for energy-intensive international markets.
Specialised Testing Equipment
AC High Voltage Testing
On-site testing of transformers, cables, generators, EHV bushings, and high-voltage bus ducts to determine insulation health.
Impulse Test Equipment
Simulating lightning and switching voltage impulses as per relevant standards. Portable impulse-testing equipment for on-site testing [coming soon].
Flux Testing
Testing of large stators for magnetic circuit integrity by way of inducing magnetic flux for assessing the magnetic circuit health for large hydro-generators.
Water Load Banks
200-6000 kW, up to 11 kV. Our industrial-grade water load banks provide precise, controlled load testing for power generation and distribution systems.
Partial Discharge Testing
Testing of partial discharge in transformers, cables, generators, motors and high-voltage equipment.
Mobile Substations
Mahati Industries offers fully integrated Mobile Substations, providing high-voltage power solutions for utilities, industrial sites, emergency grid restoration, and remote power applications. Designed for rapid deployment and plug-and-play functionality, Mahati’s export-ready mobile substations ensure seamless power availability in critical situations, infrastructure expansions, and energy transition projects worldwide.
Our Capabilities
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EHV Power, Distribution, Furnace, Dry-Type, and Special Transformers.
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Vertical and horizontal winding systems, positive-pressure winding environment, and isostatic hydraulic pressing.
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250T Tandem Beam EOT cranes and multiple 100/20 Ton cranes ensure smooth assembly operations.
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NABL-accredited, equipped with a 2000 kV impulse generator, 78 MVAR capacitor banks, and HVAC testing facilities for up to 400 kV class transformers.
Facility Highlights
We integrate advanced engineering and rigorous quality assurance to deliver world-class transformers – with large-scale production capabilities (up to 400 kV), sophisticated winding and insulation processes, and heavy-duty handling systems. Our manufacturing lines are optimised for efficiency, reliability, and scalability, meeting international compliance standards (IEC, IEEE, ISO 9001, ISO 14001, ISO 45001).
