induction furnace transformer


E&T division started manufacturing of transformers in the year 2008 and in a short span of time it has installed over 1500 transformers for various applications, viz. transformers for induction furnace, electric arc furnace, ladle refining furnace, rolling mill, power and distribution, solar inverter duty and solar powerhouse, unitized substation, reactor, and special purpose, etc. Electrotherm provides the best range of furnace transformers, oil-cooled transformers, and special duty transformers with effective & timely delivery. These transformers are manufactured using optimum grade components and advanced techniques under the supervision of deft professionals. These transformers are available in numerous technical specifications in order to meet the several needs of our precious patrons. Our offered transformers are highly acclaimed for their excellent functionality and long service life in the market.
furnace (induction & arc) duty transformers

Having a deep understanding of furnace characteristics and steel plant operations, we are committed to making equipment that meets the special needs of the industry. Electrotherm can create a superior value and customer delight with its transformers as it will:

  • Reduce production loss
  • Low loss transformers result in substantial saving on electricity consumption
  • Offer early delivery of complete package
  • Reduce project cost
  • Widespread service network
  • Easy availability of spares
  • Synchronized delivery of furnace and transformer
Different types of transformers provided by us:
  • Converter Transformers
  • Arc / Submerged Arc / Refining Furnace Transformers
  • Rectifier Transformers
  • Power and Distribution Transformers
  • Special Transformers
  • Packaged / Unitized Sub-Stations
  • Reactors
All types of transformers are subjected to routine tests in compliance with relevant standards. Some tests that are conducted at our warehouse include temperature rise test (setup also available for forced water-cooled transformers), capacitance tan delta test, zero sequence impedance measurement, noise level measurement, no-load harmonics measurement, and measurement of power consumed by fans and pumps, SFRA test.
furnace duty transformers.
  • Lower current densities to account for current harmonics
  • Suitably designed for extra heat dissipation
  • Secondary terminals mounted on large insulating plates to avoiding structural heating
  • Designed for higher voltage stresses due to voltage harmonics and for frequent switching
  • Additional mechanical support to account for frequent short-circuit like conditions, and for rapid and large load fluctuations
  • Electrostatic shield between primary and secondary windings, if required, for some applications
  • Improved reliability due to water cooling system with redundancy 
induction furnace transformers

Type tested through NABL accredited Lab ERDA, Vadodara.

  • 45 MVA, 132/33 KV Power Transformer
  • 12.5 MVA, 33/1 KV Power Transformer
  • 5 MVA, 33/1 KV Power Transformer
  • 12.5 MVA, 20 KV / 600 V X 4 Furnace Transformer
  • 5 MVA, 33 KV / 380 V X 4 Inverter Duty Transformer
  • 4 MVA, 11 KV / 380 V X 4 Inverter Duty Transformer
  • 2.5 MVA, 11 KV / 433 V Distribution Transformer


  • Wide spread customer support network with highly skilled manpower to provide installation, commissioning and maintenance support
  • Stringent quality assurance plan for incoming materials and in-process to ensure defect-free manufacturing
  • Short lead time even for very special transformers
  • Low-loss transformers

Model # Transformers
Range Upto 63 MVA
Voltage Upto 145 kV
Cooling Type ONAN / ONAF / OFWF


We convey our sincere thanks and our appreciation to M/ s Electrotherm family for the development, realization, testing, qualification and commissioning of 10 MW power supply system for our Plasma Wind Tunnel facility. We are extremely glad that M/ s Electrotherm has taken up this challenging task, when no such system was existing in the country. We wish, we should have many more such collaborative ventures in future with M/ s Electrotherm and contribute to ISRO's futuristic advanced R&D programmes.
Mr. P.A. Krishnamoorthy, VSSC-ISRO
Hereby we feel glad to have 4000 KW/ 10 Ton DTi Furnace set along with HSMC lX Caster. We have commissioned this equipments in our plant on 21st May 2018 & found performance which was committed by Electrotherm was achieved. Electrotherm's project execution was extraordinary & their process understanding & support was remarkable. Looking to the performance of other equipments of other makes running within our group, we have found performance of Electrotherm make DTi Furnace to be best.

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