Conference Time: 8th Sept 2025, 02:29:01am EDT
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A2-6: A2 Power Transformer and Reactor: Monitoring, Testing and Diagnostics
Time:
Wednesday, 01/Oct/2025:
4:00pm - 6:00pm
Location: Room 520F
Session Topics:
A2 Power transformers and reactors
Presentations
4:00pm - 4:15pm Mitigation and Electromagnetic Transient (EMT) Analysis for Dissolved Gas in a 500 kV/16 kV Generator Step-Up (GSU) Transformer
Bruce Chen , Hyunjung Yong, Wenli Hong, Masoud Ali, Ska-Hiish Manuel, Anil Pradhan, Edward Burt
BC Hydro, Canada
4:15pm - 4:30pm Insights in Condition Assessment of Power Transformers Using SOT and DGA Data for End-of-Life Estimation
Ahmad Vosoughi Hamzekhanlo 1 , Stefan Kornhuber1 , Sebastian Kleyboldt2 , Mahmoud Moh'd2
1 University of Applied Science Zittau/Görlitz , Germany; 2 50Hertz Transmission GmbH
4:30pm - 4:45pm Determining Abnormal Behaviour of Loaded Tap Changers using a DGA 4-simplex.
Zachary Draper , James Dukarm, Sanskruti Padmawar
Delta-X Research, Canada
4:45pm - 5:00pm Software for applying the DGA interpretation method of CIGRE TB 771 using gas limits specific for each type of fault
Michel Duval 1 , Nelly Sénéchal1 , Luc Paulhiac2 , Jerzy Buchacz3 , Patrick Picher1 , Sébastien Favron1 , Marta Cea de Ruano1 , Stéphane Proulx1
1 Hydro Québec, Canada; 2 EDF, France; 3 Electropomiar Elektryka, Poland
5:00pm - 5:15pm Evaluation of Water Content in Solid Insulation Using Online Monitor Data
Senja Maria Leivo
Vaisala Oyj, Finland
5:15pm - 5:30pm Partial Discharge Based Root Cause Analysis for a 33 kV Cast Resin Transformer
Raul Alvarez1 , Rodolfo García-Colon2 , Mihai Huzmezan 3
1 University of La Plata, Argentine Republic; 2 Megger; 3 Megger
5:30pm - 5:45pm Impact of Accelerated Thermal Aging on Power Transformer Insulation: An FRA-Based Assessment
Avinash Srikanta Murthy 1 , Genaro Andrew-Morlet2 , Zhanyue Wen2 , Saravanan Selvaraj1
1 Hitachi Energy India Limited, India; 2 Hitachi Energy Germany AG, Germany
5:45pm - 6:00pm Analysis of on-line vibroacoustic monitoring of On-Load Tap Changers in Power Transformers
Joachim Schiessling 1 , Nilanga Abeywickrama1 , Michel Gauvin2 , Patrick Picher2
1 Hitachi Energy Research, Sweden; 2 Hydro-Québec, Canada