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Liquid insulation play an important role in the transformer applications. Liquid insulation is used for cooling in addition to insulation in transformer. The liquid insulation protects the solid insulation from atmospheric moisture. Analysis of liquid insulation interprets the condition of the transformer.

Team Liquid Dielectrics is actively working on

  1. Developing alternate liquid dielectrics for power transformer applications

  2. Conditioning Monitoring of transformer

  3. Insulation assessment

  4. Development of alternate techniques for insulation assessment

Meet the team

On-going Students

PhD

Masters

Funded Projects:

  • Development of non-edible green vegetable oil as a potential liquid dielectric for power/distribution transformer from the renewable source.

         Funding agency: Department of Science and Technology, New Delhi 

         Amount: Rs 68,70,461 (Ongoing) 

         Project No: EEESPNSERB00871xSKN005 (PI) 

         Co-PI: Prof. S.K. Dwivedy (Mechanical Engg, IIT Guwahati) 

  • Development and performance analysis of nanofluid based dielectric fluid as an insulant and coolant in power transformers.

Funding Agency: Department of Science and Technology, New Delhi

Amount: Rs 56, 00,000 (Completed)

Project No: xEEESPNSERB00871xSKN002 (PI)

Co-PI: Prof. S.K. Dwivedy (Mechanical Engg, IIT Guwahati)

Prof. N. Sahoo (Mechanical Engg, IIT Guwahati)​

  • Study to Identify and Develop sensor and triggering mechanism for shutting down of electronic systems in heavy lightning situation

Funding Agency: Army Technology Board

Amount: Rs 56, 00,000 (Completed)

Project No: ECE-P-SM-01 (Co-PI)

PI: Prof. S. Majhi (Dept of EEE, IIT Guwahati)

Consultancy Projects:

  • Development NER-II Transmission Limited- Multi Circuit Branching for Sterlite Power Transmission Limited, Tripura, India. (Jan-Feb 2021, PI)

  • Third Party Enquiry on 1X100 MW Namrup Replacement Power Project, Namrup, Dibrugarh, Assam, India (June-Sept 2020, Co-PI)

  • Loss Separation in a high speed induction machines for Toshiba Mitsubishi- Electric Industrial Systems Corporation (TMEIC), Stage I,  Tokya, Japan. (Sept 2012 to Jan 2013, Co-PI)

Patents:

 2018

  1. Mrutyunjay Maharana, Alakesh Nanda, Sisir Kumar Nayak and Niranjan Sahoo, “Natural and force convection imposed accelerated thermal ageing simulator to predict the life of the insulating oil before using in transformer”, Indian patent application number: 20171045816 A, Date of publication: 05/01/2018. (First examination report received)

  2. Moon Moon Bordeori, Mrutyunjay Maharana, Sisir Kumar Nayak and Niranjan Sahoo, “Design and development of automated open beaker oxidative ageing assessment apparatus”, Indian patent application number: 201731047043 A, Date of publication: 05/01/2018.

  3. Mrutyunjay Maharana, Sisir Kumar Nayak and Niranjan Sahoo, “Non-edible vegetable oil based dielectric liquid and use thereof in power dissipation transformer”, Indian patent application number: 201831013006 A, Date of publication: 05/04/2018. (First examination report received).

 

Awards:

2020

  1. Ms Niharika Baruah has received the Young Presenter award for presentation at the 9th IEEE International Symposium on Electrical Insulating Materials (ISEIM), 13-17 September 2020, Tokyo, Japan.

2019

  1. Dr Mrutyunjay Maharana (Former scholar at Centre for Energy) have received the Gandhian Young Technological Innovation (GYTI) 2019 award for the project titled “Design And Development Of Interlock Mechanism Based Bio-compatible, User-friendly And Cost-effective Elbow Disarticulation Prosthesis”. The project work was carried out under the supervision of Dr Sisir Kumar Nayak (Dept. of EEE).

  2. Ms Niharika Baruah has received the DST International Travel Grant to attend and present at the IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 20-23 October, (2019), Richland, Washington, USA. Department of Science and Technology, India. 2019

2018

  1. Ms Niharika Baruah has received the Student travel grant from IEEE PES to attend the 10th IEEE PES Asia-Pacific Power and Energy Engineering Conference 2018 (APPEEC) held at Sabah, Malaysia from 7th -10th October, 2018.

Journal Publications:

2021

 

  1. N. Baruah, R. Sangineni, M. Chakraboty, S. K. Nayak, “Investigation of Natural Ester based Insulating Liquid using Statistical Hypothesis Testing”, IEEJ transactions on fundamentals and materials ( Accepted for Publication).

2020

  1. Niharika Baruah, Sujita Srichandana Dey, Sisir Kumar Nayak, “Evaluation of dissolved gas analysis and long-term performance of non-edible natural ester,” IEEE Transactions on Dielectrics and Electrical Insulation, 2020, Vol. 27, Iss. 5, pp. 1561-1569.

  2. Rohith Sangineni, Niharika Baruah, Sisir Kumar Nayak, “Analysis of electric field in liquid dielectric on addition of nanoparticles”, Materials today: proceedings, 2020 (https://doi.org/10.1016/j.matpr.2020.09.828).

2019

  1. Niharika Baruah, Mrutyunjay Maharana, Sisir Kumar Nayak, “Performance Analysis of Vegetable Oil based Nanofluids used in Transformers,” IET Science, Measurement & Technology Vol. 13, No. 7, 2019.

  2. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Niranjan Meher, and Parameswar Krishnan Iyer, “Condition Assessment of Aged Ester based Nanofluid Through Physicochemical and Spectroscopic Measurement,” IEEE Trans. Instrum. Meas., Vol. 68, No. 12, 2019.

2018

  1. Mrutyunjay Maharana, Sisir Kumar Nayak, Niranjan Sahoo, “Karanji oil as a potential dielectrics liquid for transformer”, IEEE Transaction of Dielectric and Electrical Insulation, Vol. 25, No. 5, October 2018.

  2. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Niranjan Sahoo, “Effect of oxidative ageing on the thermophysical and electrical properties of the nanofluid with statistical analysis of AC breakdown voltage,” IET Science, Measurement & Technology, Vol. 12 No. 8, pp. 1074-1081, Sept. 2018.

  3. Mrutyunjay Maharana, Moon Moon Bordeori, Sisir Kumar Nayak, Niranjan Sahoo, "Nanofluid based transformer oil: effect of aging on thermal, electrical and physio-chemical properties," IET Science, Measurement & Technology, Vol. 12, No. 7, pp. 878-885, May 2018.

Conference Publications:

2020

  1. Niharika Baruah, Rohith Sangineni, Manas Chakraborty, Sisir Kumar Nayak, “Data driven analysis of aged insulating oils by UV-Vis spectroscopy and principal component analysis (PCA)”, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 18-30 October, (2020), East Rutherford, New Jersey, USA.

  2. Niharika Baruah, Rohith Sangineni, Manas Chakraborty, Sisir Kumar Nayak, “Statistical Analysis of Natural Ester based Insulating Liquid using Hypothesis Testing", 9th IEEE International Symposium on Electrical Insulating Materials (ISEIM), 13-17 September, (2020), Tokyo, Japan.

  3. Rohith Sangineni, Niharika Baruah, Manas Chakraborty, Sisir Kumar Nayak, “Effect of magnetic properties of liquid dielectric on the leakage flux of power transformer”, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 18-30 October, (2020), East Rutherford, New Jersey, USA.

  4. Manas Chakraborty, Niharika Baruah, Rohith Sangineni, Sisir Kumar Nayak, “Dissolve Gas Analysis (DGA) of thermally aged blended transformer oil”, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 18-30 October, (2020), East Rutherford, New Jersey, USA.

2019

  1. Sujita Srichandana Dey, Rohith Sangineni, Niharika Baruah, Mrutyunjay Maharana, Sisir Kumar Nayak, “Investigation of thermal conductivity of semiconducting nanofluid for transformer”, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 20-23 October, (2019), Richland, Washington, USA. 

  2. Niharika Baruah, Mrutyunjay Maharana, Sujita Srichandana Dey, Sisir Kumar Nayak, “Behavioural assessment of aged natural ester based nanofluid using statistical technique”, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 20-23 October, (2019), Richland, Washington, USA. 

  3. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Kai Wu, “Insulation monitoring of oxidative aged nonedible ester based dielectric fluid by suitable dissolved gas analysis”, IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 20-23 October, (2019), Richland, Washington, USA.

  4. Niharika Baruah, Mrutyunjay Maharana, Sujita Srichandana Dey, Sisir Kumar Nayak, “Nanoparticle Polarization Effect on the Permittivity of the Dielectric Liquid”, 20th IEEE International Conference on Dielectric Liquids (ICDL), 23-27 June, (2019), Rome, Italy.

  5. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Niranjan Sahoo, Manas Chakraborty, “Investigation of AC breakdown strength and frequency varied dielectric response of the non-conventional vegetable oil”, IEEE International Conference on Dielectric Liquids (ICDL), 23-27 June, (2019), Rome, Italy.

2018

  1. Niharika Baruah, Mrutyunjay Maharana, Sujita Srichandana Dey, Sisir Kumar Nayak, “Enhancement of Heat Transfer property in Insulating fluids using Nanoparticles”, 8th IEEE Power India International Conference (PIICON), 10-12 December, Kurukshetra, India 

  2. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Niranjan Sahoo, “Nanofluid and Transformer Oil Impregnated Aged Kraft Paper: Analysis of Its Mechanical Strength”, 10th IEEE Pes Asia-Pacific Power and Energy Engineering Conference (APPEEC), October 7-10, Sabah, Malaysia 2018.

  3. Niharika Baruah, Mrutyunjay Maharana, Sisir Kumar Nayak, “Investigation of the Electric Field variation on surface of nanoparticle added to transformer oil”, 10th IEEE PES Asia-Pacific Power and Energy Engineering Conference 2018 (APPEEC), 7-10 October, Sabah, Malaysia.

  4. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Niranjan Sahoo, "Electro-mechanical and chemical strength analysis of thermally aged nanofluid impregnated kraft paper," IEEE Conference on Electrical Insulation and Dielectric Phenomenon (CEIDP), Cancun, Oct. 21-24, Mexico, USA.

  5. Mrutyunjay Maharana, Niharika Baruah, Nayak S K, Niranjan Sahoo, "Thermoelectrically enhanced nanofluid is a suitable replacement for transformer oil," 36th IEEE Electrical Insulation Conference (EIC), 11-14 June, San Antonio, Texas, USA.

  6. Niharika Baruah, Mrutyunjay Maharana, Sisir Kumar Nayak, “An electrode model to ascertain the effects of voltage and tip radius with gap distance on electric field of transformer oil”, 2nd IEEE International Conference on Energy, Power and Environment 2018 (ICEPE 2018), 1-2 June, (2018), Shillong, Meghalaya India.

2017

  1. Mrutyunjay Maharana, Niharika Baruah, Sisir Kumar Nayak, Niranjan Sahoo, "Comparative study of mechanical and electrical strength of kraft paper in nanofluid based transformer oil and mineral oil," 8th IEEE International Symposium on Electrical Insulating Materials (ISEIM), 12-15 September, (2017), Toyohashi, Japan.

  2. Mrutyunjay Maharana, Sisir Kumar Nayak, Niranjan Sahoo, Manas Chakraborty, "Comparative statistical analysis on AC breakdown voltage of thermally aged nanofluid with mineral oil",  2017 IEEE Electrical Insulation Conference (EIC), Baltimore, MD, USA.

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Sibabrata Pradhan

(2016- Present)

e-mail: sibabrata@iitg.ac.in

Area:    Winding dislocation of a power transformer

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Deepak Kanumuri

(2019- Present)

 

e-mail: kdeepak@iitg.ac.in

 

Area: Aging of alternate liquid dielectrics

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Rohith Sangineni

Prime Minister's Research Fellow

(2018- Present)

 

e-mail: sanginen@iitg.ac.in

Area:  Space Charge, Breakdown in liquid dielectrics 

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Niharika Baruah

(2015- Present)

e-mail: b.niharika@iitg.ac.in

 

Area: Nanofluids, Natural ester oils, Condition Monitoring of liquid dielectrics

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Ambuj Kumar

(2020- Present)

 

e-mail: ambuj.kumar@iitg.ac.in

 

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Chandrima Saha
(2021-present) Part-time
 
e-mail: s.chandrima@iitg.ac.in
 
Area: Machine Learning for Transformer Condition Monitoring

Prashant Kumar
(2020-present)
 
e-mail: prashant1993@iitg.ac.in
 
Area: Surface discharge characteristics of insulation

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Gallery

CEIDP-2019
CEIDP-2019

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CEIDP-2019 (Our team having Lunch with Prof N.Bowler)
CEIDP-2019 (Our team having Lunch with Prof N.Bowler)

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High Voltage Generator
High Voltage Generator

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CEIDP-2019
CEIDP-2019

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Alumni

PhD

Masters

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Name

Dr Mrutyunjay Maharana

Thesis

Assistant Professor,

School of Electrical Engineering,

Xi'an  Jiaotong University,

China.

e-mail: mrutyunjay@alumni.iitg.ac.in

Current Position 

(2014-2019)

Name

Thesis

Current Position 

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(2019-2021)

Research Scholar
High Voltage Engineering
IIT Guwahati (Part-time)
e-mail: moonsquare159@gmail.com

Chandrima Saha

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(2016-2018)

Research Scholar
High Voltage Engineering
IIT kanpur
e-mail: moonsquare159@gmail.com

Moon Moon Bordeori

Underground

Tikeshwar Lahre

(2016-2018)

Use of Nanoparticles for Enhancement of Thermal Conductivity of Transformer Oil

Underground

Vishal Badlas

(2013-2015)

Modeling of Partial Discharge in the solid dielectric material

Development of Alternative Dielectric Fluid for Power and Distribution Transformer