Conference Agenda

Rethinking IEEE 1553: is Dissipation Factor an adequate criterion after VET?

T. Lamas², F. PEREIRA², J. Cordeiro², J. Zhang², T. Koreeda², M. Erdogan², T. Hildinger¹

1: Voith Hydro Ltda, Brazil; 2: Voith Hydro Holding, Germany

Dynamic Resonance Phenomena in Hydro Generator Stators

A. Khazanov, A. Gegenava, A. Nikolaev

National Electric Coil, United States of America

Experience with Corona/Blackout Tests on Fully Assembled Stator Windings

M. Partyka, T. Black

Manitoba Hydro, Canada

Statistical Analysis of DDF and Offline PD Measurements on Stator Windings

M. Lachance¹, F. Cirino²

1: OMICRON electronics Canada; 2: OMICRON electronics USA

Advancing sustainability and circular economy in high voltage insulation systems

R. Platek, R. Sekula, G. Kmita

Hitachi Energy Research, Poland

An Explainable Physics-Informed Dual-Input Deep Learning Framework for Robust Partial Discharge Detection in Noisy Environments

F. P. Mohamed¹, M. Kutlu¹, S. Mahmud¹, W. H. Siew²

1: Military Technological College, Oman; 2: University of Strathclyde, UK

Case study: Online Partial Discharge Spot Testing of Aged 110kV/6kV Power Transformer

R. Madarasz, M. Huzmezan, D. Eckert

Megger Aachen PD, Germany

Calculations and investigation of dielectric and creep stresses in high-voltage insulation of transformers

I. Radu

Hitachi Energy, United States of America

Mechanical Stability of Transformer Windings for Offshore Applications

G. Andrew-Morlet¹, O. Girlanda², J. Johansson², Z. Wen¹, A.-B. Liu³, M. Werner¹, P. Kedziora⁴, A. Murthy⁵, U. Wiklund⁶

1: Hitachi Energy, Germany; 2: Hitachi Energy, Sweden; 3: Hitachi Energy, China; 4: Hitachi Energy, Poland; 5: Hitachi Energy, India; 6: Uppsala Universitet, Sweden

Challenges and Mitigation Strategies for Connection Establishments in Dielectric Frequency Response Testing on Large Power Transformers

S. Marathe, P. Werellius

Megger, United States of America

Detection methods of turn-turn insulation faults in current transformer secondaries. A comparison.

A. Gonzalez¹, J. Loyd², V. Sharma¹

1: Megger, Canada; 2: Megger, USA

Pierce’s Dynamic Thermal Model Expanded for Simulating Multiple Concentric or Axially Displaced Windings

A. Sbravati¹, E. S. Ceron², L. V. Cheim¹, W. Calil³

1: Hitachi Energy, United States of America; 2: Hitachi Energy, Sweden; 3: Hitachi Energy, Brazil

Multiphysics Simulation of Cleats and Leads for Short-Circuit Performance Assessment

P. Kedziora¹, M. Smolinski¹, M. del Valle Ranchal³, G. Andrew-Morlet²

1: Hitachi Energy, Poland; 2: Hitachi Energy, Germany; 3: Hitachi Energy, Spain

“Binos”: A New Test Vehicle for EIS Thermal Aging Understanding: Binos Advantages Over Motorettes For EIS Behavior Investigations

A. Rubio^1,2, Z. Valdez-Nava¹, S. Pin², N. Lahoud Dignat¹, L. Fetouhi², G. Belijar³, S. Diaham¹

1: LAPLACE, University of Toulouse, CNRS, INPT, UPS, Toulouse, France; 2: IRT Saint Exupéry, Toulouse, France; 3: SAFRAN Tech, Toulouse, France

Active Thermal Cycling Aging of Form-Wound Motorettes Representative of Automotive Applications

S. Pin¹, J. Ferrand¹, J. Riquet¹, T. Hamiti², M. Szczepanski^1,3, A. Varais¹, G. Belijar^1,4, M. Darques¹

1: IRT Saint-Exupéry, Toulouse, France; 2: Nidec-PSA emotors – Carrières-sous-Poissy, France; 3: Nidec Leroy Somer – Angoulême, France; 4: Safran – Blagnac, France

Comparison of Isothermal Aging on Stators and Motorettes

M. Szczepanski^1,2, S. Pin¹, A. Treillard^1,3, A. Varais¹, G. Belijar^1,4, M. Darques¹

1: IRT Saint Exupéry, France; 2: Nidec Leroy-Somer, France; 3: Liebherr, France; 4: Safran, France

A Comprehensive Review on Insulation Systems for High Voltage Transformers and Rotating Machines

S. Moharkar, S. Jetke, D. Surve, S. Jawale, S. CHANDRA

COEP TECHNOLOGICAL UNIVERSITY PUNE, India

Influence of accelerated thermal aging on lightning characteristics of GTLs and mineral oil

P. Rozga¹, F. Stuchala¹, F. Wang²

1: Lodz University of Technology, Poland; 2: Chongqing University, China

The Effect of the Energization Scheme on Composite Insulator Interface with Defect under DC

D. Herrera¹, R. Schurch¹, J. Ardila-Rey¹, A. Villa²

1: Universidad Tecnica Federico Santa Maria, Chile; 2: Ricerca Sul Sistema Energetico - RSE, Italy

Partial Discharge Source Identification under Switching Voltage using a Novel Amplitude-Width-Area (AWA) based Visualization and CNN Classification

M. R. K. Shagor, Z. F. Mouri, F. Haque

The University of Akron, United States of America

Terahertz-based Signal Chain for Space Charge Detection in Polymeric Insulation

J. CHENG¹, Y. ZHOU^1,2, G. JIANG², C. MA¹

1: Department of Electrical Engineering, Tsinghua University, Beijing, China; 2: School of Electrical Engineering, Xinjiang University, Urumqi, China

The Detection of Protrusions in Air, CO2, and CO2/N2 using Partial Discharge Measurements

A. Eichelberg, C. M. Franck

ETH Zürich, Switzerland

Phase Independent Classification of Insulation Degradation for High Voltage Motors based on Partial Discharge Signals

Y. Miyaji¹, H. Ishikawa¹, Y. Matsui¹, S. Kodama², T. Iwanaga², T. Okamoto²

1: Mitsubishi Electric Corporation, Japan; 2: TMEIC Corporation, Japan

Lifespan Prediction of Varnish-Impregnated Corona Armor Tape in Form-Wound Stator Coils

T. Yasuda¹, T. Mabuchi¹, T. Iwanaga², R. Ikeda², N. Okajima², S. Kikuta², T. Sakurai², T. Okamoto²

1: Mitsubishi Electric Corporation, Japan; 2: TMEIC Corporation, Japan

The Prediction Model of Winding Temperature Distribution for the Dry-type Transformer

J. Zhang, C. Wang, Q. Sun, C. Jin

Hitachi Energy (China)Ltd

Modeling and Property Study of A New Mixed Natural Ester Insulation Oil : Based on Molecular Dynamics and First Principles

Y. Wu¹, R. Xi², Y. Su¹, M. Ran¹

1: Chongqing Electric Power College, Chongqing, People's Republic of China; 2: State Grid Chongqing Electric Power Company Tongnan Power Supply Branch

Glass Backed Epoxy Resin-Rich Mica Tape with High Thermal Conductivity

S. Mukasa¹, K. Haga¹, Z. Timoransky², N. Andersen³

1: Nippon Rika Technologies Inc., Japan; 2: Nippon Rika Industries Corporation, Branch Office Austria, Austria; 3: Nippon Rika Inc., USA

Analysis of Data Processing Methods for Separation of Partial Discharge Pulses

S. Helling, C. Neukirchen, M. Huzmezan

Megger Aachen PD, Germany

Methodological Proposal for Interpreting Dielectric Oil Test Results in Power Transformers

A. Céspedes¹, K. Martínez¹, J. Vásquez²

1: Universidad del Valle, Colombia; 2: Transformadores de Colombia, Colombia

Avatar-Based Immersive Training for High-Voltage Safety

M. Duguleana, C. Postelnicu

Transilvania University of Brasov, Romania

Analysis of Induced Voltages and Currents Profiles in Power Cable Metallic Sheaths: Assessing the Effect of Ideal and Non-Ideal Transpositions

A. Hernandez Hernandez^1,4, R. Nuricumbo Guillen², N. Solis Ramos³, F. P Espino Cortes¹

1: ESIME Instituto Politecnico Nacional, Mexico; 2: Tecnológico de Monterrey Campus Ciudad de México; 3: Comisión Federal de Electricidad, Ciudad de México; 4: Distribuciones Cantilever

Impact of Resolution and Measurement Time on PRPD Generation and Analysis

A. Martinez, D. Ashliegh, S. Farhang

Megger, United States of America

Investigation of erosion of switchgear contacts in supercritical carbon dioxide

M. Pothuri, A. Cruz, Z. Jin, L. Graber

Georgia Institute of Technology, United States of America

Experimental and Computational Study of PDIV and Ageing in Electrical Insulation Under Multi-Stress Conditions

D. VELU¹, I. Elosegui Simon¹, P. Alvarez Santos², E. Landa Ansa²

1: Tecnun, Spain; 2: Ceit, Spain

Topics: new materials and nanodielectrics in OC &A

F. Liu¹, N. Yan², J. Nie³, J. Li¹, T. Chen¹, D. Hou³, Q. He³, R. Hu¹

1: Electric Power Research Institute State Grid Jiangxi Electric Power Nanchang, China; 2: State Grid Jiangxi Electric Power Co., Ltd. Nanchang, China; 3: China Electric Power Research Institute Beijing, China

Analysis on the Dielectric Breakdown Characteristics of BAS-Based Glass Insulators Operated in Cryogenic Conditions

H.-C. Ryou, H.-S. Kim, G.-S. Choi, B.-W. Lee

Department of Electrical Engineering, Hanyang University, Korea, Republic of (South Korea)

Online Monitoring and Diagnostic Analysis of Partial Discharge in Thermally Stressed Enameled Wires

L. Della Giovanna, F. Guastavino, I. Khan, E. Torello

University of Genova, Italy

Partial Discharge Signal Clustering for Insulation Degradation Monitoring

L. Della Giovanna, F. Guastavino, E. Torello

University of Genova, Italy

Non-contact Partial Discharge Localization in Aged Epoxy-Molded Busbars Using Multi-Loop Magnetic Sensors

R. Kimoto¹, S. Toyoda¹, M. Hikita¹, M. Kozako¹, H. Endou², D. Mikami², T. Takayama²

1: Kyushu Institute of Technology, Japan; 2: TEPCO Power Grid, Incorporated

Solid Insulation Breakdown Voltages under Bipolar Aperiodic Decaying Pulses: Comparison to Breakdown at Unipolar Pulses

A. Pokryvailo

Spellman High Voltage Electronics Corp., United States of America

Mapping Electric Fields in Insulation System of a High Voltage Planar Converter Transformer

Y. Serdyuk¹, A. Hjert², T. Hammarstroem¹

1: Chalmers University of Technology, Sweden; 2: KraftPowercon Sweden AB, Sweden

Graph-Based Unsupervised Representation Learning for Partial Discharge Waveform Clustering

A. Nasr Esfahani^1,2, J. Laninga^1,3, A. Babaei⁴, N. Jacob^5,1, M. Jafari Jozani¹, B. Kordi¹

1: University of Manitoba; 2: PSC Consulting; 3: Manitoba Hydro; 4: RMS Energy; 5: Camelin Energy

Classification of used oil transformer by artificial intelligence

F. Guerbas, l. Guenfaf, S. Bouameur, O. Bourahli

University of sciences and technology HOUARI BOUMEDIENE USTHB, Algeria

Taping technology and the impacts on voltage endurance testing

S. P. Caveney, W. Grubelnik

Electrolock, United States of America

Insulator Materials for Electric Vehicles: Trends and Future

C. C. Postelnicu, M. Duguleana

Transilvania University of Brasov, Romania

Energy Pathways & Dielectric Decomposition in Mineral-Oil Field Transformers

S. Farhang¹, D. Chhajer², A. Martinez³, S. Marathe⁴

1: Megger, United States of America; 2: Megger, United States of America; 3: Megger, United States of America; 4: Megger, United States of America

Enhancement of Impulse Partial Discharge Inception Voltage in Laminated Polyimide Films Using Boehmite Nanocomposite Layers

H. Sasaki¹, T. Kajiyama¹, S. Kato¹, M. Hikita¹, M. Kozako¹, S. Bando², N. Hayashisaka²

1: Kyushu Institute of Technology, Japan; 2: Sumitomo Seika Chemicals Co., Ltd, Japan

Optimizing Corona Electrode Geometry: A Comparative Electric Field Analysis

R. Deb, A. Ranjan Verma

Indian Institute of Technology (IIT) Kanpur, India

Medium and High Voltage Cable Joints Failures: Influence of Ambient Temperature

L. Calcara, M. Pompili

University of Roma "La Sapienza", Italy

Development of Thermal-Stimuli-Based Diagnostic Tools for HVDC Cables

J.-C. Laurentie¹, T. Martiré¹, G. Pellecuer¹, J. Castellon¹, M. Jebli²

1: Insitut d'Électronique et des Systèmes, Université de Montpellier, France; 2: IRT Saint-Exupéry, France

The impact of voltage waveforms on PD testing of MV cable and accessories

Y. Godhwani, C. Nybeck

Megger

MV Cable System High Frequency Attenuation

S. Banerjee¹, I. Golberg², A. Mantey², J. Bornath¹, P. Salvatore¹, S. Yatim¹

1: Kinectrics Inc., Canada; 2: Electric Power Research Institute, USA

Detection of Partial Discharges in Oil-Filled Cable Joints Installed in an Underground Power Transmission Tunnel Using a Radio Interferometer System

M. Kawada¹, K. Iwasaki²

1: Tokushima University, Japan; 2: TEPCO Power Grid, Inc., Japan

Intelligent Framing of PRPD Patterns and Waveform Classification for Improving Partial Discharge Recognition Accuracy in Power Cables

C. Min¹, L. Shuangcai², L. Yingying², L. Jingjing², X. Yanting², C. Shiting²

1: SE Technology Limited; 2: ZF Technology Limited

3D Electric Field Analysis and Insulation Design of Compact β-Ga₂O₃ Power Packages

P. Adhikari¹, M. Ghassemi¹, E. J Hollar², E. Farzana²

1: The University of Texas at Dallas, TX, USA; 2: Iowa State University, IA, USA

PDIV Tests of Stator Winding of Electric Vehicle Drive Motors under High-Frequency Impulsive Voltages

Z. Li¹, J. Li¹, J. Wang², A. Zhang², P. WANG², Y. Zhu²

1: Dongfeng Motor Corporation Technical Center，China; 2: SICHUAN UNIVERSITY, China

Analytical Investigation of the Humidity Effects on Repetitive Partial Discharge Inception Voltage in Inverter-Fed Motor Windings

H. Ishikawa¹, Y. Miyaji¹, Y. Kikuchi²

1: MITSUBISHI ELECTRIC CORPORATION, Japan; 2: University of Hyogo

Statistical Condition Monitoring of Insulation Degradation in SC Maglev Systems Using an On-Board Radio Interferometer System

M. Kawada

Tokushima University, Japan

Analysis of Partial Discharge Activities in Hairpin Winding Insulation under WBG Device-Based Converters

A. K. Khiz, S. Jayaram

University of Waterloo, Canada

Experience on Inverter Voltage Endurance Testing of Enameled Wires according to Relevant Standards

C. Staubach, B. Sahan, S. Reddig, O. Niemeyer, M. Baumann

University of Applied Sciene Hannover, Germany

Versatile Laboratory System for Controlled Generation and Characterization of Partial Discharges and Electrical Arcs in Multi-Phase Insulation Systems

H. M. WILHELM¹, P. FERNANDES¹, M. SENS¹, C. SILVA², Y. MANNES¹

1: VEGOOR, Brazil; 2: ARGO, Brazil

A Compact High-Pressure Test Vessel with Standard GIS and Transformer Accessories for Examinations of Synthetic Air as an Alternative Insulating Gas

F. Abdullatif¹, S. Azer¹, J. Friedrichs¹, K. Siebert²

1: Jade University of Applied Sciences, Germany; 2: PFIFFNER Deutschland GmbH, Germany

Multi-Stress PDIV Diagnosis and Electro-Thermal Aging Evolution of Magnet Wires with Surface Scratches

J. Wang, Q. Zhou, P. Wang, C. Cao, J. Zeng

Sichuan University, China

Application of a New Signal Classification Method Using Magnitude, Time, Frequency, and Phase Angle (MTFA) for Both AC and DC Power Equipment

Y. J. Kim, J. Lee

O&M Korea, Korea, Republic of (South Korea)

A system for generation of Artificial Partial Discharges

P. Basappa, L. Quarshie

Norfolk State University, United States of America

Considerations for Field Testing of High Voltage Fluid Filled Cables with Constant Voltage AC at Near Power Frequency

M. Fenger¹, S. Banerjee¹, R. Ayoob², S. Maetzold³

1: Kinectrics Inc., Canada; 2: Kinectrics UK Ltd., United Kingdom; 3: Kinectrics GmbH, Germany