International Conference

  1. S. Chowdhury, A. Sukesh and U. Kumar, “Preliminary Study on Spatio-Temporal Currents in the Strokes with Long Upward Leaders,” 2023 12th Asia-Pacific International Conference on Lightning (APL), Langkawi, Malaysia, 2023, pp. 1-6, doi: 10.1109/APL57308.2023.10181718.
  2. S.Chowdhury, S.Das and U.Kumar, “Possibility of Lightning Strike to Aircraft”, International Conference on Lightning Electromagnetics and Semiconductor Materials (ICLEASM) Kathmandu, Nepal, 2023
  3. Surekha Jonnalagadda and Udaya Kumar, “Some Observations Pertaining to the Adequacy of Lightning Current Injection Tests to Aircraft,” 2023 12th Asia-Pacific International Conference on Lightning (APL), Langkawi, Malaysia, 2023, pp. 1-5, DOI:10.1109/APL57308.2023.10181457.
  4. Surekha Jonnalagadda and Udaya Kumar, “Identification of Suitable Governing Equation for Electromagnetic Fields in Aircrafts During a Lightning Strike,” 2022 36th International Conference on Lightning Protection (ICLP), Cape Town, South Africa, 2022, pp. 116-121, DOI: 10.1109/ICLP56858.2022.9942456.
  5. Surekha Jonnalagadda and Udaya Kumar, “Assessment of Lightning Current Injection Tests in Replicating the In-flight Current Distribution on Aircraft,” International Conference on Lightning Electromagnetics and Applications of Semiconducting Materials (ICLEASM-2023), Kathmandu, Nepal, 2023.
  6. Sayantan Das and Udaya Kumar, “Quantitative study on efficacy of lightning rod on building”, International Conference on High Voltage Engineering (ICHVE), China, 2022.
  7. Sayantan Das and Udaya Kumar, “Comparative analysis for inception of positive connecting leader from a cruising and grounded aircraft”, 36th International Conference on Lightning Protection, 2-7 Oct 2022, Cape Town, South Africa.
  8. A. Muhammed, L. Satish and U. Kumar, “A simple method to evaluate inductance  variation with respect to length of a uniform transformer winding-Experimental results” Accepted on the proceedings of International Symposium on High voltage-2021.
  9. Udaya Kumar, “Spectrum of electromagnetic fields produced by high voltage lines and natural lightning “, 2020 URSI Regional Conference on Radio Science (URSI-RCRS 2020), IIT BHU, Varanasi, India, (Invited talk), February 12-14, 2020, IIT (BHU) Varanasi, India
  10. Udaya Kumar and Rupam Pal, “Charge-flow and field in soil due to return-stroke”, Asia Pacific Lightning Conference 2019, Hong Kong, 12-14 June 2019. 
  11. Santosh J and Udaya Kumar, ” Preliminary Investigations on Propagation of Partial Discharge Induced Currents in a Transformer Winding”, 2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), Ropar, Nov. 2017.
  12. Rupam Pal and Udaya Kumar, “Issues Related with use of FDTD in Return-stroke Modeling”, AsiaEM Symposium Bangalore, July 2017.  
  13. Santosh J and Udaya Kumar, ” Limit for the Circuit Model for Rogowski Coil”,AsiaEM Symposium Bangalore, July 2017.
  14. Udaya Kumar and Vernon Cooray, “Limitations of RSM in Zoning of Aircrafts”, 10th Asia Pacific Lightning Conference, Krabi, Thailand, May 2017.
  15. Udaya Kumar and Rupam Pal, “The details of electric field in the close range for a first return stroke”, 10th Asia Pacific Lightning Conference, Krabi, Thailand, May 2017.
  16. Sukesh and Udaya Kumar, “Correlation between leader charge and peak current as depicted by self-consistent return stroke model”, International Conference on Lightning Protection (ICLP 2016), Portugal, Sept. 2016.
  17. Udaya Kumar and Vladmir Rakov, “Electrical stress on outer insulation of buried cables due to a nearby lightning strike to ground”, International Conference on Lightning Protection (ICLP 2016), Portugal, Sept. 2016.
  18. Udaya Kumar and Santosh J., “Time domain approach for modelling transformer windings for propagation of fast discharge pulses”, 14th International conference on electromagnetic interference and compatibility (INCEMIC 2016), Dec 2016.
  19. S. Subramanian and U. Kumar, “Existence of boundary error transverse to the velocity in SU/PG solution of moving conductor problem,” 2016 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO), Beijing, 2016, pp. 1-2.
  20. Udaya Kumar and Debasish Nath, “Measurement of electron avalanche current in a point-plane geometry stressed with negative voltage”, 2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), December, 2015.
  21. Udaya Kumar and Sukesh A, “Simulation for Strike to Conductor with a Simplified Line Model”, 9th Asia Pacific Lightning Conference 2015 scheduled to be held at Nagoya, Japan between 22nd – 26th June 2015.
  22. Udaya Kumar and Sreeram V, “Modelling Proximity Effects in Transverse Magnetic Mode for Lightning Studies”, International Conference On Lightning Protection (ICLP) 2014, Shanghai, Chain, Oct 12-18, 2014, Paper No. 474.
  23. Udaya Kumar and Sruthi Ajay, “Lightning Induced Currents in Isolated Towers”, International Conference On Lightning Protection (ICLP) 2014, Shanghai, Chain, Oct 12-18, 2014, Paper No. 450.
  24. Sreenita Chatterjee and Udaya Kumar, “Design of Corona Control Rings for EHV/UHV Line Hardware and Substations”, 10th IEEE – International Conference on Properties and Application of Dielectric Materials”, July 24-28, 2012, Bangalore.
  25. Subba Reddy B, Udaya Kumar & Debasish Nath, “Correlation between corona current and radio interference due to high voltage insulator string”, IEEE 2012 Electrostatics Joint conference, held at Cambridge, Ontario, Canada, June 12-14, 2012.
  26. Subba Reddy B, Satish Naik, Udaya Kumar and L Satish, ” Potential and Electric Field distribution in a Ceramic disc Insulator String with faulty insulators”, International Conference on Properties and Application of Dielectric Materials”, July 24-28, 2012, Bangalore.
  27. Subba Reddy B and Udaya Kumar, “Performance of Telecommunication modules to 5µs-100kHz Ring Wave Surges”, International Conference on Properties and Application of Dielectric Materials”, July 24-28, 2012, Bangalore.
  28. Udaya Kumar and Govind Rao Kunkolienker, “Basic Features of Current Induced/Shared by Cables Mounted on Towers/Down conductors during stroke interception”, 31st International Conference on Lightning Protection (ICLP2012), held in Vienna, Austria, 2012.
  29. Udaya Kumar and Rosy Balaram Raysaha, “Genesis of Return Stroke Current Evolution at the Wavefront”, Asia-pacific lightning conference (APL2011), Chengdu, China, 1-4, November 2011, TC2-73-1.
  30. Subba Reddy B and Udaya Kumar, “A Unique Artificial Pollution Laboratory at IISc”, International Conference on Instrumentation, Organized by Instrument society of India at Cummins College of Engg, Pune-India, during 21st – 23rd Jan 2010, Session 7, paper No 1.
  31. Subba Reddy B and Udaya Kumar, “Modeling and Fabrication of a Portable Surge Generator”, International Conference on Instrumentation, Organized by Instrument society of India at Cummins College of Engg, Pune-India, during 21st – 23rd Jan 2010, Session 7, paper No 6.
  32. Subba Reddy B and Udaya Kumar, “Simulation of surface and volume stress for high voltage transmission insulators”, 4th International Conference on Computer Applications in Electrical Engg Recent Advances, CERA-09, held at Indian Institute of Technology Roorkee-India, during 19th -21st Feb 2010, Session A3, Paper ID:539.
  33. Rosy B. Raysaha, Udaya Kumar, Vernon Cooray and Rajeev Thottappillil, “Special Case of Lightning Strike to Tall Objects on Ground”, 30th International Conference on Lightning Protection, Cagliari, Italy, Paper 1151, 12th-17th September 2010. [Student received young scientist award]
  34. Udaya Kumar, “Performance of Rogowski Coil at Higher Frequencies”, 30th International Conference on Lightning Protection, Cagliari, Italy, 12th-17th September 2010, Paper No. 1152.
  35. Subba Reddy B and Udaya Kumar, “Investigations on the Corona performance of a Ceramic disc Insulators integrated with Field Reduction Electrodes”, IEEE-IAS Annual meet held at Houston- Texas-USA, during 3rd-7th Oct-2010 Paper No. IAS21p03.
  36. Rosy Balaram Raysaha and Udaya Kumar, “Role of Channel Conductance and Corona Sheath on Return Stroke Current Evolution”, 4th International Symposium on Lightning Physics and Effects, Vienna, Austria, 25- 27th May 2009.
  37. Subba Reddy B and Udaya Kumar, “A Novel Technique for Improving the Pollution Performance of High Voltage Ceramic Insulators”, 8th International Seminar on Electrical & Electronic Insulating Materials & Systems INSULEC-2009 during 18th 20th February 2009, Bangalore-India, Session V, pp V-23 to V-30. [Received appreciation certificate and cash prize]
  38. Subba Reddy B and Udaya Kumar, “Field Reduction Electrodes for the possible improvement in the pollution flashover performance of Porcelain Insulators”, 9th IEEE International Conference on Properties & Applications of Dielectric Materials (ICPADM-2009) held at Harbin-China, during 19th-23rd July 2009, Vol.2, pp. 671-674.
  39. Udaya Kumar, Rosy Balaram Raysaha and Dileep Kumar K, “Direct Time Domain Modelling of First Return Stroke of Lightning”, 29th International Conference on Lightning Protection ICLP2008, Uppsala, Sweden, June 2008, Paper No. 1a-6. [Student received Diploma award]
  40. Udaya Kumar and Jothirmayi R, “Studies on Potential Rise on Typical Down Conductors During Stroke Interception”, 29th International Conference on Lightning Protection ICLP2008, Uppsala, Sweden, June 2008, Paper No. 5c-4
  41. Subba Reddy B and Udaya Kumar, “Potential and Electric Field Profiles for Transmission line Insulators”, IASTED International Conference on Power and Energy Systems (AsiaPES 2008) Langkawi, Malaysia, April 2 – 4, 2008, paper No. 606-115.
  42. Vishwanath Hegde and Udaya Kumar, “Classification of Strokes and Identification of Stroke Location from the Measured Tower Base Currents of LPS to Indian Satellite Launch Pad-I”, The 8th International Power Engineering Conference IPEC07, Singapore, 3-6th December, 2007, pp. 1603 1608.
  43. Subba Reddy B and Udaya Kumar, “Pollution Flashover Studies on High Voltage Ceramic Insulator Strings”, 11th IEEE International Student Conference on Electrical Engineering, at Czech Technical University, Czech Republic on 17th May 2007, Session: PE, paper 1, pp. 1-6. [Received best paper presentation award, cash prize & Diploma]
  44. Archana Sharma,  K.V. Nagesh, R.C. Sethi, Udaya Kumar and G.R. Nagabhushana, “Surface flashover phenomena at vacuum/oil interface”, IEEE – Int. Conf. on Vacuum   Electron devices IVEC-California, 26th to 30th April, 2002.
  45. Archana Sharma, K.V. Nagesh, R.C. Sethi, Udaya Kumar and G.R. Nagabhushana, “Surface flashover field analysis of vacuum/oil interface in the cavity of induction accelerator”, IDES-2002, 30th June to 3rd July, CA, USA.
  46. Archana Sharma, S.Acharya, K.V. Nagesh and R.C.Sethi, G.R. Nagabhushana and   Udaya Kumar, “ Surface flashover of spacer in vacuum/oil interface”, IEEE- Int. Sym. on dielectrics, surface and vacuum insulations, ISDEVI-2002, France, 30th June to 5th July, 2002.
  47. Nelson T Joseph and Udaya Kumar, “Evaluation of the Protective Action of LPS to Indian Satellite Launch Pad – II”, International Symposium on High Voltage Engineering, Bangalore, August 2001.
  48. Udaya Kumar and Goutham Ghosh, “On the Efficacy of the Lightning Mast on Structures”, International Symposium on High Voltage Engineering, Bangalore, August 2001.
  49. Archana Sharma, K. Nanu, D.K. Sharma, K.V. Nagesh, P.H. Ron, Udaya Kumar and G.R. Nagabhushana, “Study of surface flashover in transformer oil under pulsed excitation”, Int. Symposium on High Voltage Engineering, 2001, August 24-27, Bangalore.
  50. Udaya Kumar and G.R. Nagabhushana, “Analysis of Lightning Protection System for Indian Satellite Launch Pad”, National Interagency coordination group Lightning Conference, Orlando, Florida, USA, 12th April 2000.
  51. Udaya Kumar, “The Ground Field Induced by the Stepped Leader Over a Realistic Earth”, National Interagency coordination group Lightning Conference, Orlando, Florida, USA, 12th April 2000.
  52. G.R. Nagabushana, Joy T., Udaya Kumar, D. Venkateswara Rao and P.V. Panduranga Rao, “Lightning Protection System to the Indian Satellite Launch Pad”, Paper No. 2.212.S11, 11th International Symposium on High Voltage Engineering, London, 23-27, August  1999.
  53. Udaya Kumar and G.R. Nagabhushana, “A Generalised Definition for Inductance and RLC Type Transient Fields in Coils”, 10th International Symposium on High Voltage Engineering, paper no. 3350, Montreal, Aug. 25-29, 1997.
  54. Udaya Kumar and G.R. Nagabhushana, “A New Model for the Lightning Stepped Leader”, 10th International Symposium on High Voltage Engineering, paper no. 3351, Montreal, Aug. 25-29, 1997.
  55. Udaya Kumar and G.R. Nagabhushana, “Solution of Capacitive-Resistive Transient fields”, 9th International Symposium on High Voltage Engineering, paper no. 8351, Graz, Aug-Sept. 1995.
  56. Gopal H.G., Udaya Kumar and G.R. Nagabhushana, “Application of Circuit Simulation Software for the Solution of Some Second Order Scalar Partial Differential Equations”, Proceedings of the Sixth Annual Conference of IEE of Japan Power & Energy, Nagoya, Aug. 2-4, 1995, pp. 309.
  57. Udaya Kumar and G.R. Nagabhushana, “Field Modelling of the Stepped Leader Propagation”, 3rd Workshop & Conference on EHV Technology, Aug. 1995, Bangalore, pp. 93-97.