TUESDAY 21st APRIL 2026
INSUCON 2026 Conference Chairman Welcome & Introduction 09:00 – 09:10
Mr Andrew Keefe – ELANTAS Europe GmbH
SESSION 1 – TRANSFORMERS, MATERIAL AND TESTING 09:10 – 10:50
Aramid Insulation for Transformers – Update on Properties and Applications
R. Szewczyk, Nomex® Energy Solutions, Poland
Investigations On Various 3d Printing Technologies of the Biobased Material Used for High Voltage Electrical Insulation
R. Sekula, Hitachi Energy Research, Poland, M. Kuniewski, AGH University of Krakow, Poland
Partial Discharge Localization in Liquid-Filled Transformers Using Acoustic and Polarity-Based Techniques
M. Lachance Omicron Canada, W. Koltunowicz Omicron Germany, K. Nair Hitachi Energy USA
Dielectric Characterisation of Pyrolysis-Derived Bio-Oil Compared to Mineral Oil
K. Rasti1*, S.W. Banks**, A. Badiee*, N.M. Chalashkanov* University of Lincoln, School of Engineering and Physical Sciences, United Kingdom* Aston University, School of Engineering and Applied Science, United Kingdom**
Dielectric Strength Re-Evaluated: A Critical Review for Modern Transformer Insulation Design
M. Grisaru Independent Global Consultant, Israel, V. Gurin Independent Global Consultant, Ukraine
SESSION 2 – PARTIAL DISCHARGE AND TESTING 11:10 – 12:30
A New Inference System for the Robust Identification of Defects Supporting PD in AC Rotating Machines
A. Contin DIA University of Trieste, Italy, J.Borghetto, S.Chiarello, G.Pirovano, M.Sozzi, R.S.E. spa Milano, Italy
New Technology for Separating Phase-To-Earth, Phase-To-Phase and Cross-Coupled Partial Discharges in Operating Stator Windings
M. Sasic, H. Sedding, C. Chan Iris Power L.P., Canada, G.C. Stone, Stone Dielectrics, Canada
Advancements in the Acquisition and Analysis of Partial Discharges From Artificial Defects in Polymeric Materials Subjected to HVDC Stress
A. Sebastiani, L. Paschini, A. Caprara, Doble Engineering, Italy
Impulse Partial Discharge Characteristics at Triple Junction in High-Pressure Dry Air – Influence of Electrode Surface Roughness and Estimation of Inception Voltage
T. Umemoto*, M. Sato*, K. Hidaka**, S. Takano***, Y. Hayase***, K. Yamashiro**, A. Kumada*
*The University of Tokyo, Japan, **Tokyo Denki University, Japan, *** Fuji Electric Co., Ltd. Japan
SESSION 3 – HV ROTATING MACHINES 13:40 – 15:00
Approaches to Specify Partial Discharge Activity Limits for New Rotating Machine Stator Windings
G.C. Stone, Stone Dielectrics, Canada
Investigation of the applicability of very low frequency technology in the field of large turbo generators
T. Tamms, G. Schmidt, Siemens Energy Global GmbH & Co. KG Germany, L. Hähner, M. Secklehner, BAUR GmbH Austria
Understanding the use of PD measurements in High Voltage Hydro-Generators
T. Hildinger, T. E. Lamas, J. F. Cordeiro, F. Pereira, Voith Hydro, Germany C. Staubach HS Hannover, Germany, J. Weidner, GenAdvice, Germany
Influence Of Voltage Ripple on Corona Inception in the End-Winding of a High Voltage Machine
G. Paulsson, F. Sahlén, ABB Corporate Research, Sweden E. Mårtensson, B. Holmgren, ABB Large Motors and Generators, Sweden
SESSION 4 – CABLES AND INSULATION TESTING 15:20 – 17:00
ETFE (Ethylene-Tetrafluoroethylene), A New Candidate for High Voltage Magnet Wire Insulation
A. Masatoshi, YS. CedricChin, AGC Chemicals, Japan C.-P. Keller AGC Chemicals Europe, Netherlands, C. Kent, P. Minshell, AGC Chemicals Europe, United Kingdom
Testing Challenges for Subsea Cables: Higher Voltages and a Longer Life?
D. Hoyle, I. Hudson, N. McAlpine, S. Jones, R. Hetherington, I. Williamson, C. Ebden, A. Neumann, ORE Catapult, Blyth, UK
A Short-term Thermal Ageing Study of Low Voltage Transportation DC Cables
Zoltán Ádám Tamus, Richárd Cselkó, Olana Firew Dereje, Elham Davar, Budapest University of Technology and Economics
Guard Terminal Performance in DC Insulation Resistance Testing
Dimitar Petsov, Stan Zurek, Paul Swinerd, Megger Instruments United Kingdom
X-Wax Formation and Diagnostics in Oil-Filled High Voltage Equipment
H. Ding, Doble PowerTest Ltd Guildford
WEDNESDAY 22ND APRIL 2026
KEYNOTE SPEAKER – UL SOLUTIONS 09:00 – 09:50
UL 1446, the Standard for Safety of Systems of Insulating Materials — General Introduction to electrical insulation system (EIS) evaluation and UL Certification.
Ivan Vrabie Principal Engineer for Electrical Insulation Systems, UL
SESSION 5 – TRANSFORMER FLUIDS 09:50 – 11:30
Hybrid Analytical and Machine Learning Method for Moisture Based Realtime Breakdown Voltage Prediction in Transformers
A. R Kumar, P. Kundu, Indian Institute of Technology Mandi, India, N. Bhamidipati, R. Ezhuthachan, The Motwane Manufacturing Company Private Limited, India
Statistical Approach to Insulation Optimisation of Mineral Oil Filled Power Transformers
V. Gurin, Transformer expert, Ukraine
Comparison of Procedures to Moisten and Hydrogenate Transformer Oils to Carry Out Laboratory Tests
A. Montero, B. García, Universidad Carlos III de Madrid Spain, S. Tenbohlen, H. Song, University of Stuttgart, Germany, R. Kumar, E.ON Group Innovation GmbH, Germany
Retrofill of a Testing Power Transformer with a Re-Refined Transformer Oil
H. Campelo, R. Fairholm Nynas AB, Sweden , J. Hajek, Hitachi Energy, Sweden, M. Cuesto, Hitachi Energy, Spain
Retrofilling Experience of Mineral Oil Filled Transformers Using Ester Liquids
A. Gyore, Shell UK Oil Products Ltd, C. Walker, SP Energy Networks D. Walker, Copper & Core Consulting Ltd
SESSION 6 – MATERIAL PROPERTIES AND IMPREGNATION 11:50 – 13:10
Study on mica tapes impregnability using 2-level full factorial Design of Experiment
M. Ferraris ELANTAS Europe srl, Italy, C. Herold, ELANTAS Institute for High-Voltage Insulation, Switzerland
Investigations of Highly Impregnable Mica Insulation Tape
Z. Timoranský, Nippon Rika Industries Corporation, Branch Office Austria Y. Tsukamoto, Nippon Rika Technologies Inc. Japan
Sustainable and Label Free Impregnation Resins
S. Rost, K.A. Fernandes, A. Rajput, S. Tödter-König ELANTAS Europe GmbH, Germany
Dielectric and Structural Properties of Encapsulation Resin
Petr Kvasnicka, Jan Jindacek, Pavel Prosr, Josef Pihera, University of West Bohemia, Faculty of Electrical Engineering, Research and Innovation Centre for Electrical Engineering (RICE)
SESSION 7 – MATERIAL PROPERIALS ENDURANCE AND AGEING 14:10 – 15:30
Advanced Insulation Materials for Emerging Rotating Machine Applications
Y. Ittner, B. Gaussens, J.-C. Duart & G. Vercesi, DuPont European Technical Centre
Voltage Endurance Test Results After 40 Years of Operation
M.G. Krieg-Wezelenburg, Electrical Insulation Consultancy High Energy, the Netherlands, T. De Herde Engie Flexible Generation Europe, European Maintenance Support, Belgium
Impulse Voltage Tests on Form-Wound Stator Coils IEC And IEEE Standards and Practices
J. H. Krieg, EIC High Energy B.V., The Netherlands
Highly Electrically Resistant Wire Enamels: Versatile Solutions in the Design of Electrical Machines
G. Biondi, Elantas Europe Srl., Zona Industriale Campolungo, Ascoli Piceno, Italy
SESSION 8 – BUSHINGS, MATERIALS AND TESTING 15:50 – 17:10
New Online Tools for Assessment of Bushing Condition: A Project Summary
S. J. Sutton*, M. Khalil*, A. McGrail* and G. Wilson**, *Doble Engineering Company, UK, **National Grid Electricity Transmission, UK
Distribution Insulator Shield for Coastal Areas
L. Meyer, H. Almaguer, S. Cabral, T. Mustafa, J. Utzig, University of Blumenau-Brazil P. Meyer, Schneider Electric-Brazil, J. Meyer, WEG Transformers-Brazil
Development of Advanced Dielectric Gap Filling Gel for Bushings
D. D. Cottrell*, H. Mirafsari*, D. Sohal**, M. G. B. Loret*, A. Frankowska*, Unigel Limited* Unigel IP Limited**
Evaluation of PDIV and Parallel Capacitance Indicators Under Thermal vs. Electrical Aging in Insulation Systems
N. Djeddou*,**, S.Duchesne*, F.Morganti*, O.Deblecker** and B.Bakhshideh Zad** *Artois, UR 4025, Laboratoire Systèmes Électrotechniques et Environnement (LSEE), Béthune, F-62400, France. **EPEU Unit, Polytech of Mons, 7000 Mons, Belgium.
THURSDAY 23RD APRIL 2026
SESSION 9 – TESTING OF CONDUCTOR INSULATION 09:00 – 10:20
Analysis of Hairpin Winding Bending Effect on Breakdown Voltage Based on Design of Experiments
M. Wang1, T. Zou1, H. Naderiallaf1, H. Huang1, X. Ren1, H. Li1, A. Walker1, M. D. Nardo2, and C. Gerada1
1Power Electronics, Machines and Control (PEMC) Research Institute, University of Nottingham, Nottingham, United Kingdom, 2Department of Electrical Engineering and Information Technology, Politecnico di Bari, Italy
Implementation of Innovative Measurements Methods for On-Line Detection of Partial Discharge and Hot Spots in Medium Voltage Assets
C Smith, K Tavernier, C Eastham, S Roe, IPEC Stockport UK.
Sequential Surface Treatment And Insulation Testing Of Additively Manufactures Litz Pin Conductors
P. Sankowski, D. North, N. Simpson , School of Electrical, Electronic and Mechanical Engineering, University of Bristol, Bristol, UK
Investigation Of Pulse Polarity Effects in AC–Pulse Superimposed Voltage on Electrical Tree Propagation in Epoxy Insulation for Inverter-Fed Motor Systems
Z. Tang*, T. Umemoto*, M. Sato*, H. Ishikawa**, Y. Miyaji**, S. Kodama***, T. Okamoto***, A. Kumada*
*The University of Tokyo, Japan, **Mitsubishi Electric Co., Ltd. Japan, ***TMEIC Co., Ltd. Japan
SESSION 10 – TRANSPORTATION AND RENEWABLE 10:40 – 12:20
Designing Insulation Thickness Under Probabilistic Discharge Risk for Aerospace and Automotive Machines
Hadi Naderiallaf, Xuanming Zhou, Michele Degano, David Gerada, Gaurang Vakil, and Christopher Gerada, Power Electronics, Machines and Control (PEMC) Research Institute, University of Nottingham, U.K.
Partial Discharge Measurements and Defect Analysis on Cruise Liner Generators
M. Soeller* M. Subramaniam** C. Briano*, *Megger Aachen PD Germany, **YSM Consultancy Inc USA
Arc Fault Prediction of Insulation Materials in More Electric Aircraft Using Artificial Intelligence Techniques
M. Abdolahi*, W. Song*, R. Ross**, A.J. de Graaf**, and M. Yazdani-Asrami*,* CryoElectric Research Lab, Propulsion, Electrification & Superconductivity Group, James Watt School of Engineering, University of Glasgow, UK, ** Reliability and Diagnostics Centre, Institute for Science and Development (IWO), Ede, Netherlands
A New System with Power Factor Correction using SEPIC Converter for Application in Photovoltaic Systems (PV)
Alireza Siadatan1, Pouya Tarassodi2, Moyang Cui3, Hamed Karimi4, Maryam Sepehrinour5, Shayan Gorji6,
1 Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada. 2 Innvotek Company, Birmingham, United Kingdom, 3 Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada. 4 Department of Electrical Engineering Khatam University, Tehran, Iran. 5 Department of Computer Science, Algoma University, Brampton, Canada Department of Electrical and Computer Engineering Science and Research Branch, Islamic Azad University Tehran, Iran
A Control Strategy for Permanent Magnet Synchronous Motors to Achieve Wide Speed Range in Electric Vehicle Applications
Alireza Siadatan1, Pouya Tarassodi2, Moyang Cui3, Hamed Karimi4, Ramin MohammadAsghari5, Maryam Sepehrinour6,
Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada. 1Innvotek Company, Birmingham, United Kingdom, 2 Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada. 3 Department of Electrical Engineering Khatam University, Tehran, Iran. 4Department of Electrical and Computer Engineering Science and Research Branch, Islamic Azad University Tehran, Iran 5 Department of Computer Science, Algoma University, Brampton, Canada 6