Our research broadly focuses on i) condition monitoring and diagnostics of high-voltage power apparatus, ii) insulation coordination in grid-integrated solar and wind farms, and iii) FEM-based simulation for the design and analysis of high-voltage equipment.
Condition Monitoring and Diagnostics of High-Voltage Power Apparatus:
This research focuses on developing innovative methods to extract and interpret information embedded in the frequency- and time-domain responses of transformer windings. By integrating classical approaches with AI/ML-based techniques, it aims to enable advanced diagnostic capabilities and improve the condition assessment of high-voltage power transformers. This work also includes developing online FRA testing and diagnostic techniques for transformers.
Insulation Coordination in Grid-Integrated Solar and Wind Farms:
This research investigates surge and transient phenomena in renewable energy systems, focusing on the effects of switching and lightning interactions and their propagation along transmission lines with multiple reflections. The studies aim to understand the resulting overvoltage and overcurrent stresses on transformers, generators, and power electronic systems, and to develop effective mitigation strategies to ensure reliable and resilient system operation.
FEM-Based Simulation for Design and Analysis of High-Voltage Equipment:
This work involves finite element method (FEM)-based modeling and simulation for the design, analysis, and performance optimization of high-voltage high-frequency transformers, high voltage reactors, and high-voltage polymeric insulators.
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Cooling Enhancement Through DC Ionic Wind Under Natural Convection Sensitivity To Electrode Spacing And Orientation by Venkatesh S., Kumar A. , Pramanik S. , Vijayaraghavan S. , Saha K. , Bhattacharya A. Heat Transfer Research 56 1-14 (2025)
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A Critical Review of the Definition of FRA Resonance Frequency of Transformers as per IEEE Std C57.149-2012 by Saurav Pramanik and L. Satish Electric Power Systems Research, Elsevier Vol. 121 pp. 52-57 (2015)
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On Analytical Estimation of Inductances in Equivalent Ladder Network Model of a Homogeneous Transformer Winding Using FRA Data by Rao T. M., Pramanik S. IEEE Trans. on Power Delivery 1-12 (2025)
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Parametric Evaluation for Comprehensive Fault Analysis in an Isolated HV-LV Winding Assembly Using Composite Frequency Response by Mitra S., Pramanik S. IEEE Transactions on Power Delivery 40 353-364 (2025)
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A novel estimation methodology for multi-resonance equivalent inductance of transformer winding for inter-turn short-circuit fault detection by Rao T. M., Mitra S. , Pramanik S. Electric Power Systems Research 231 1-13 (2024)
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Parametric Evaluation to Determine Type and Severity of Mechanical Fault in Transformer Winding Using Frequency Response Measurement by Mitra S., Pramanik S. IEEE Transactions on Instrumentation and Measurement 73 1-13 (2024)
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"Double-End Excitation of A Single Isolated transformer Winding: An Improved Frequency Response Analysis for Fault Detection" by Pramanik S., Ganesh A. , Duvvury V. IEEE Transactions on Power Delivery 1-8 (2021)
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An Attempt to Identify the Faulty Winding in a Three-Phase Transformer Using an Advanced FRA Measurement Technique by Duvvury V., Pramanik S. IEEE Transactions on Power Delivery 1-10 (2020)
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Tank Current Measurement of Three-Phase Transformer: Its Resonance Behavior and Sensitivity to Detect Mechanical Faults by Pramanik S., Duvvury V. , Sahoo S. IEEE Trans. on Power Delivery - (2019)
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An Experimental study of the Electrohydrodynamic characteristics of Sedimenting Drops under Uniform Alternating Electric Fields by Paul R., Guttapalli N. , Mandal S. , Kishore N. K., Pramanik S. , Chakraborty S. IEEE Trans. on Industry Appllications - (2017)
Principal Investigator
- Performance Evaluation of Lightning and Surge Protection and Earthing Systems in Telecom Towers INDUS TOWERS LIMITED
Co-Principal Investigator
- Development of high-power Grid-friendly Conductive and Static Wireless Chargers for Electric Vehicles Anusandhan National Research Foundation (ANRF)
Ph. D. Students
Chavantakur Pallavi
Area of Research: Solid Insulation Diagnostics for High-Voltage Power Apparatus
Pritam Chakraborty
Area of Research: Transformer Diagnostics with Machine Learning
Raj Kamal Yadav
Area of Research: Insulation Coordination in Power System with Renewable Energy Integration
