Constellation, le dépôt institutionnel de l'Université du Québec à Chicoutimi

2019

Ungarala Mohan Rao, Fofana Issouf, Jaya T., Rodriguez-Celis Esperanza, Jalbert Jocelyn et Picher Patrick. (2019). Alternative dielectric fluids for transformer insulation system: progress, challenges, and future prospects. IEEE Access, 7, p. 184552-184571.

Bétié Amidou, Ungarala Mohan Rao, Fofana Issouf, Fethi Meghnefi et Yéo Zié. (2019). Influence of cellulose paper on gassing tendency of transformer oil under electrical discharge. IEEE Transactions on Dielectrics and Electrical Insulation, 26, (6), p. 1729-1737.

Ungarala Mohan Rao, Fofana Issouf, Kartheek R., Yapi K. M. L. et Jaya T.. (2019). Mineral oil and ester based oil/paper insulation decaying assessment by FTIR measurements. Dans : ISH 2019: Proceedings of the 21st International Symposium on High Voltage Engineering , 26 au 30 août 2019, Budapest, Hongrie.

Ungarala Mohan Rao, Fofana Issouf, Bétié Amidou, Senoussaoui M.L., Brahami Mostefa et Briosso Eduardo. (2019). Condition monitoring of in-service oil-filled transformers: Case studies and experience. IEEE Electrical Insulation Magazine, 35, (6), p. 33-42.

Ungarala Mohan Rao, Fofana Issouf et Loiselle Luc. (2019). Preliminary studies on soluble and colloidal decomposition products in ester filled transformers. Dans : 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL) , 23-27 June 2019, Roma, Italy.

Safiddine Leila, Zafour Amel Hadj-Ziane, Ungarala Mohan Rao et Fofana Issouf. (2019). Regeneration of transformer insulating fluids using membrane separation technology. Energies, 12, (3), p. 368-381.

2020

Loiselle Luc, Ungarala Mohan Rao et Fofana Issouf. (2020). Influence of ageing on oil degradation and gassing tendency under high-energy electrical discharge faults for mineral oil and synthetic ester. High Voltage, 5, (6), p. 731-738.

Sékongo Beki, Ungarala Mohan Rao, Fofana Issouf, Jabbari Marouane, Akre Simplice et Yeo Zie. (2020). Temperature dependence of the pre-breakdown and breakdown phenomena in natural esters under AC stress. IET Science, Measurement & Technology, 14, (9), p. 762-769.

Loiselle Luc, Ungarala Mohan Rao, Fofana Issouf et Jaya T.. (2020). Monitoring colloidal and dissolved decay particles in ester dielectric fluids. IEEE Transactions on Dielectrics and Electrical Insulation, 27, (5), p. 1516-1524.

Ungarala Mohan Rao, Fofana Issouf, Beroual Abderrahmane, Rozga P., Pompili M., Calcara L. et Rapp Kevin J.. (2020). A review on pre-breakdown phenomena in ester fluids: Prepared by the international study group of IEEE DEIS liquid dielectrics technical committee. IEEE Transactions on Dielectrics and Electrical Insulation, 27, (5), p. 1546-1560.

Ungarala Mohan Rao, Fofana Issouf et N'cho Janvier Sylvestre. (2020). On some imperative IEEE Standards for usage of natural ester liquids in transformers. IEEE Access, 8, p. 145446-145456.

Loiselle Luc, Ungarala Mohan Rao et Fofana Issouf. (2020). Gassing tendency of fresh and aged mineral oil and ester fluids under electrical and thermal fault conditions. Energies, 31, (13), p. 2472.

Loiselle Luc, Ungarala Mohan Rao et Fofana Issouf. (2020). Influence of aging on oil degradation and gassing tendency for mineral oil and synthetic ester under low energy discharge electrical faults. Energies, 13, (3), p. 595.

2021

Ungarala Mohan Rao et Fofana Issouf. (2021). Monitoring the Sol and Gel in Natural Esters under Open Beaker Thermal Aging. Dans : 2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) , 3-5 Dec. 2021, Kozhikode, India.

Rozga Pawel, Jayasree T., Ungarala Mohan Rao, Fofana Issouf et Picher Patrick. (2021). Prebreakdown and Breakdown Phenomena in Ester Dielectric Liquids. Dans Mohan Rao Ungarala, Issouf Fofana et Ramanujam Sarathi (dir.), Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems: Performance Analysis and Applications. (p. 147-183). IEEE Press Series on Power and Energy Systems. Hoboken, New Jersey : Wiley-IEEE Press.

Ungarala Mohan Rao, Fofana Issouf et Loiselle Luc. (2021). Behavior of Ester Liquids Under Various Operating Fault Conditions. Dans Mohan Rao Ungarala, Issouf Fofana et Ramanujam Sarathi (dir.), Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems: Performance Analysis and Applications. (p. 305-320). IEEE Press Series on Power and Energy Systems. Hoboken, New Jersey : Wiley-IEEE Press.

Ungarala Mohan Rao, Fofana Issouf, Loiselle Luc et Jayasree T.. (2021). End Life Behavior of Ester Liquids in High-Voltage Transformers. Dans Mohan Rao Ungarala, Issouf Fofana et Ramanujam Sarathi (dir.), Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems: Performance Analysis and Applications. (p. 127-146). IEEE Press Series on Power and Energy Systems. Hoboken, New Jersey : Wiley-IEEE Press.

Ungarala Mohan Rao, Fofana Issouf et Rodriguez Celis E.. (2021). Liquid Insulation for Power Transformers. Dans Mohan Rao Ungarala, Issouf Fofana et Ramanujam Sarathi (dir.), Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems: Performance Analysis and Applications. (p. 1-9). IEEE Press Series on Power and Energy Systems. Hoboken, New Jersey : Wiley-IEEE Press.

Jayasree T., Ungarala Mohan Rao, Fofana Issouf, Brettschneider Stephan, Rodriguez-Celis Esperanza M. et Picher Patrick. (2021). Influence of Aging on PD Characteristics of Ester Liquids with Hypothetical Plausibility. Dans : 22nd International Symposium on High Voltage Engineering (ISH) , 21-25 November 2021, Xi’an, China.

Jayasree T., Ungarala Mohan Rao, Fofana Issouf, Brettschneider Stephan, Rodriguez-Celis Esperanza et Picher Patrick. (2021). Pre-breakdown Phenomena and Influence of Aging Byproducts in Thermally Aged Low Pour Point Ester Fluids Under AC Stress. IEEE Transactions on Dielectrics and Electrical Insulation, 28, (5), p. 1563-1570.

Ungarala Mohan Rao, Fofana Issouf, Rajesh K. N. V. P. S. et Picher Patrick. (2021). Identification and application of machine learning algorithms for transformer dissolved gas analysis. IEEE Transactions on Dielectrics and Electrical Insulation, 28, (5), p. 1828-1835.

Fofana Issouf, Bergeron Yohan, Gagnon Marie-Pier, Tremblay Jonathan, Loiselle Luc, Yapi Kouba Marie Lucia et Ungarala Mohan Rao. (2021). Fullers earth treatment for esters liquids used in power apparatuses: Inferences and arguments. ENP Engineering Science Journal, 1, (1),

Behjat Vahid, Emadifar Reza, Pourhossein Mehrdad, Ungarala Mohan Rao, Fofana Issouf et Najjar Reza. (2021). Improved monitoring and diagnosis of transformer solid insulation using pertinent chemical indicators. Energies, 14, (13), p. 3977.

Ungarala Mohan Rao, Verma Anant K., Darimireddy Naresh K., Fofana Issouf, Park Chan-Wang et Vedik B.. (2021). Perspectives of convertors and communication aspects in automated vehicles, Part 1: Convertors and condition monitoring. Energies, 14, (7), p. 1795.

Darimireddy Naresh K., Ungarala Mohan Rao, Park Chan-Wang, Fofana Issouf, Sujatha M. et Verma Anant K.. (2021). Perspectives of convertors and communication aspects in automated vehicles, part 2: Printed antennas and sensors for automotive radars. Energies, 14, (6), p. 1656.

Loiselle Luc. (2021). Influence of ageing byproducts on the physicochemical properties and gassing tendancy of insulating fluids used in power transformers. Thèse de doctorat, Université du Québec à Chicoutimi.

2022

Ungarala Mohan Rao, Fofana Issouf, Rozga Pawel, Picher Patrick, Sarkar Dilip K. et Karthikeyan R.. (2022). Influence of gelling in natural esters under open beaker accelerated thermal aging. IEEE Transactions on Dielectrics and Electrical Insulation, e3217995.

Ungarala Mohan Rao, Fofana Issouf, Rozga Pawel, Beroual Abderrahmane, Malde J., Martin R., Wang Feipeng, Casserly Edward, Pompili M. et Calcara L.. (2022). Next Generation Insulating Liquids. Dans : The 21st IEEE International Conference on Dielectric Liquids (ICDL 2022) , May 29th to June 2nd 2022, Sevilla (Spain).

Thota Jayasree, Ungarala Mohan Rao, Fofana Issouf, Picher Patrick et Brettschneider Stephan. (2022). Preliminary Investigations on the Gassing Tendency and Breakdown strength of Low Pourpoint Transformer Liquids under Selective Conditions. Dans : The 21st IEEE International Conference on Dielectric Liquids (ICDL 2022) , May 29 to June 2nd 2022, Sevilla (Spain).

Lyutikova M., Korobeynikov S., Ungarala Mohan Rao et Fofana Issouf. (2022). Mixed Insulating Liquids with Mineral Oil for High Voltage Transformer Applications: A Review. IEEE Transactions on Dielectrics and Electrical Insulation,

Tirupati Naidu Gottapu, Ungarala Mohan Rao et Suresh Sudabattula. (2022). Influence of Ester Liquids on Dielectric Strength of Cellulose Kraft Paper. Energies, 15, (3), p. 762.

Ungarala Mohan Rao, Fofana Issouf et Picher Patrick. (2022). Decay Particles and Regeneration of Ester Dielectric Liquids A Challenge! Transformer Technology Mag, (17),

2023

Gautam Leena, Sarathi R., Soundarya P., Sekar G., Ungarala Mohan Rao et Fofana Issouf. (2023). Quantitative Estimation of the Gelling in Thermally Aged Natural Ester Dielectric Liquid. IEEE Transactions on Dielectrics and Electrical Insulation, 31, (2), p. 897-903.

Jayasree T., Fofana Issouf, Rozga Pawel, Ungarala Mohan Rao, Strzelecki K., Brettschneider Stephan, Picher Patrick, Rodriguez Celis E. et Stuchala F.. (2023). Analysis of Breakdown Voltage of Low Pour Point Synthetic Ester Insulating Liquids under Lightning Impulse Voltage of both Polarities. IEEE Transactions on Dielectrics and Electrical Insulation,