Sarathi R


044-2257 4436

  • Dr. R. Sarathi is a Professor of High voltage engineering with IIT Madras. He has rich and varied experience of over 20 years in research, teaching and consulting. He has been instrumental in conceptualizing and developing the state-of-the-art High Voltage Laboratory at IIT Madras.
  • He visited Akita University, Japan as a JSPS Fellow; visited Technical University, Munich as DAAD Fellow and served as visiting researcher in leading universities such as Nagaoka University, Japan, Kyushu University, Japan, University of Strathclyde, Glasgow, and Waseda University, Japan.
  • During 1995--2001 I was with the DSPS R&D Centre of Texas Instruments (Dallas, TX, USA), where I was working in the areas of Speech Recognition and Speech Coding. In 2001 I joined IIT Madras, where I am currently an Associate Professor in the Department of Electrical Engineering. My area of interest is Signal Processing, with applications to Speech Recognition, Synthesis, and Coding.

  • Development of cryogenic insulation material.
  • Condition Monitoring of power apparatus using Multi sensor fusion technique.
  • Understanding the influence of space charge on breakdown process in nanocomposites and elastomers adopting PEA technique.
  • Development of nano composite insulating materials for outdoor applications.
  • Fault diagnosis in transformers using Acoustic emission and UHF Sensors.
  • Application of Wavelet Technique to Condition Monitoring of Outdoor insulating structures.
  • Fractal Modeling and Simulation of Treeing in electrical Insulation.
  • Generation of Nano particles by pulsed power technique.
  • Sterilization of liquid foods using pulsed power technique.


  • R Sarathi, V Sri Harsha, N J Vasa, Huw Griffith and Manu Haddad;, Understanding Water Droplet Induced Leakage Current characteristics on Epoxy Nanocomposites under DC voltages Adopting UHF Technique, Accepted for publication in IEEE Tran on Dielectrics and Electrical insulation.
  • Raj Kamal Singh, R Sarathi and Ligy Phillip, Disinfection of water by pulsed power technique: A mechanistic perspective, Accepted for publication in RSC advances.
  • Ribhu Gautam, R Vinu, R Sarathi, S Acharya, Mukesh Kumar; Archana Sharma, Understanding Electrical Treeing Activity in Electron Beam Irradiated XLPE Cable Insulation, Accepted for publication in IEEE Tran on Dielectrics and Electrical insulation.
  • Raj Kamal Singh, R Sarathi and Ligy Phillip, Disinfection of Water Using Pulsed Power Technique: Effect of System Parameters and Kinetic Study, Accepted for publication in Chemical Engineering Journal.
  • V Sathieshkumar; N J Vasa, R Sarathi, Remote Surface Pollutant Measurement by Adopting Variable Stand-off Distance Based Laser Induced Breakdown Spectroscopy Technique Journal of Physics D: Applied Physics vol- 48 No 43 page-435504, 2015 IOP Publishing.
  • R Sarathi, Lakshya Mittal and K Sethupathi, Influence of Barrier on Corona Discharge Activity in Liquid Nitrogen under AC voltages Adopting UHF Technique, Accepted for publication in IEEE tran on Dielectrics and Electrical insulation.
  • R Sarathi, Kushal Oza and K Sethupathi, Electrical Treeing in XLPE Cable Insulation at cryogenic Temperature Under Harmonic AC Voltages, Cryogenics vol-71,page-62-67,2015,Elsevier.
  • Somesh Vinayak Tewari, Romesh Chandra, S K Sharma, R Sarathi, Archana Sharma1 and K C Mittal, Surface potential decay of PMMA and POM in air, Materials Research Express, Vol-2, No 4,2015.
  • R Sarathi, Kushal H Oza, C L G Pavan Kumar, T Tanaka, Electrical Treeing in XLPE Cable Insulation Under Harmonic AC voltages, Dielectrics and Electrical Insulation, IEEE Transactions on vol-22, No 6, page-3177-3185, 2015.
  • R Sarathi, R S Reddy, T S Rashmi, A Okamoto, H Suematsu, P Selvam, U Kamachi Mudali and M Kamaraj, Investigation of Nano-Molybdenum Carbide Particle Produced by Wire-Explosion Process, IEEE trans on Plasma Science vol-43, no 10, page-3470-3475, 2015,IEEE.
  • R Sarathi, K Sahitya Yadav and M Swarna , Understanding the Surface Discharge Characteristics of Thermally Aged Copper Sulphide Diffused Oil Impregnated Pressboard Material, Dielectrics and Electrical Insulation, IEEE Transactions on vol-22,No 5,page-2513-2521,2015.
  • R Sarathi and K Sahithya Yadav, Influence of thermally aged barrier on corona discharge activity in transformer oil under AC voltage, Dielectrics and Electrical Insulation, IEEE Transactions on vol-22,No 5,page-2415-2423,2015.
  • T Suzuki, Y Sato , H Suematsu, R Sarathi, T Nakayama and K Niihara, Preparation of Palladium Nanoparticles and a Grain Size Determining Equation of Pulsed Wire Discharge in N2, Ar and He Ambient Gases, Accepted for publication in Jap journal of applied physics.
  • S V Tewari, R J Kshirsagar, Amitava Roy, R Sarathi, Archana Sharma and K C Mittal, Optical emission spectroscopy study on flashover study along insulator surface due to particle contamination, Laser and Particle Beams, Dec 2014.
  • M Danikas, Bairaktari, R Sarathi, A Basri Bin Abd Ghani, A review of two nanocomposite insulating materials models: Lewis' contribution in the development of the models, their differences, their similarities and future challenges, Engineering, Technology & Applied Science Research, Vol4, No 3, pp636-643, 2014.

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