Productivity Improvement Circuit
eq optimizer

Power Optimizer

A power optimizer is used to have an optimum efficiency of furnace it is required to operate an induction furnace system very close to the resonance frequency. The inductive reactance of the coil keeps on varying continuously due to change in charge quantity, temperature, wear of lining, etc. A power optimizer is used to add or remove the M.F. capacitors of the induction furnace automatically by using an advance programmable logic controller. It continuously monitors the exact requirement of the reactance of the LC tank circuit by adjusting KVAR and thus facilitates the operation of the furnace very close to the resonance frequency.


  • Advance PLC is used to control the total operation of the power optimizer
  • Touch screen color HMI for easy operation
  • Highly reliable
  • Response time in milliseconds


  • It can be installed easily in Existing System with less time.
  • It can be installed easily in Existing System with less time.
  • Improve the Power Factor of the Furnace at all Lining Condition.
  • Reduce the Melting time and Increase the Productivity.
  • As it is automatic, no manual intervention required to operate add-removal of MF capacitors thus preventing unwanted intermittent delays in managing MF tank capacitors.
  • It increases productivity by 5 to 10 %.
  • Right time switching ON/OFF MF capacitors will saves energy up to 20 to 25 unit/ton


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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