Professor Ramanujam Sarathi

Professor, Indian Institute of Technology Madras

Areas of Interest:

Condition monitoring of power apparatus adopting multi sensor Fusion, Generation of Nano particle by wire explosion process, sterilization of liquid foods by pulsed power technique, Nanocomposite materials for power apparatus, Nano fluids for transformer insulation, pollution performance of outdoor insulating materials, life estimation of insulating material under polluted voltages.


High voltage Engineering; pulsed power, Nano Composites

Consultancy Areas:


Sector Associated With:


Sectors Interested to Offer Service:

Educational / Academic institutions, Industry (Private), Industry (PSUs) , R&D Organizations, Government (including funding agencies), Entrepreneurs and Individuals

Major Professional Contributions:

Prof. Ramanujam Sarathi has pioneered to identify partial discharge (PD) formation in gas insulated substation (GIS), power transformers and in cryogenic power equipment's under AC, DC and with harmonic AC voltages with different total harmonic distortion (THDs), adopting Ultra High Frequency (UHF) technique, in India. He has also developed multi sensor fusion system for identification of the partial discharges (caused by different means) by using UHF and acoustic emission sensors and standardised the results with conventional PD detection process. His modelling studies allowed researchers to understand the dynamics of nano particle formation by wire explosion process.

Professional Experience:

  • Professor, IIT Madras, Chennai, April'08 -till date
  • Associate Professor, IIT Madras, Chennai, May'05-April'08
  • Assistant Professor, IIT Madras, Chennai, Feb'99-April'05
  • JSPS Fellow, Akita University, Japan, Nov'98-Jan'99
  • 5. Lecturer, IIT Madras, Chennai, Nov 96-Oct98


High voltage, nano particle, nano fluid, nanocomposite, water treatment, pulsed power, Insulation

Contact Information


Department of Electrical Engineering,
Indian Institute of Technology Madras,
Chennai-600 036
Phone: 044-2257 4436
Mobile: 9444246436
Fax: 044-2257 4402

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.



  • PhD., High Voltage Engineering , 1994, Indian Institute of Science
  • M.E., Power System Engineering, 1990, Annamalai University
  • B.Tech., Electronics & Communication Engineering, 1988, University of Madras

Awards and Major Professional Recognitions

  • JSPS Fellow- 1998- Japanese society for promotional Science, Japan
  • DAAD fellow- 2009- DAAD, Germany
  • Outstanding Engineer Award- IEEE PES Madras Chapter- 2013- IEEE,USA
  • CIGRE working group member in the area of water treeing in cable insulation-2011- CIGRE, France
  • Member of International Reference Group for SweGRIDS- 2014-KTH Sweden
  • Fellow, Royal Society of Chemistry
  • Fellow, IET

Link to Website

INAE Section Affiliated V: Electrical Engineering

Year of Election to Fellowship: 2016

Year of Birth: 1967