Condition Assessment of Power Transformers based on UHF PD Measurement

Stefan Tenbohlen¹, Martin Siegel²

¹Institute of Power Transmission and High Voltage Technology (IEH), University of Stuttgart, Stuttgart, Germany; ²BSS Hochspannungstechnik GmbH, Sindelfingen, Germany

Full Scale Internal Arcing Test in 60MVA Power Transformer: Test Results Analysis and Simulation

Ashwin Padmanaban¹, Marwane Elkarii¹, Didier Hamoir²

¹SERGI, France; ²Transformer Protector Corp, USA

Experimental Evaluation of Magnetically Induced Losses Based on Temperature Measurements

Zvonimir Jurković¹, Bojan Trkulja², Karlo Petrović³, Bruno Jurišić³, Mario Jurković¹

¹KONČAR - Distribution and Special Transformers Inc., Croatia; ²University of Zagreb, Faculty of Electrical Engineering and Computing, Croatia; ³KONČAR – Electrical Engineering Institute Ltd., Croatia

FORMATION AND REMOVAL OF SILVER SULPHIDE ON OLTC CONTACTS: FIELD INVESTIGATIONS, PRACTICAL APPROACHES AND MAINTENANCE PERSPECTIVE

Adam Suleiman^1,3, Dejan Susa², Chandima Ekanayake³

¹AusNet, Australia; ²GMB-TX; ³The University of Queensland

Sprayed Metal for Effecting Leaking Transformer Repairs (SMELTeR)

Muhammad Shaban¹, Gordon Wilson¹, Ruth Hooton¹, Allan Lathan¹, Kat Lennox²

¹National Grid Electricity Transmission, United Kingdom; ²Rawwater Applied Technology Ltd (RW), United Kingdom

Unusual x-wax formation in distribution transformer – Case study

Dijana Vrsaljko¹, Ivanka Radić², Vedran Đurina¹, Ivan Krivačić², Veronika Haramija¹

¹KONČAR - Electrical Engineering Institute; ²KONČAR - Distribution and Special Transformers

Nonlinear Aging Behavior of Power Transformers under Increasing Load

Silas Selzer¹, Niklas Bäcker^1,2, Markus Zdrallek¹, Korbinian Maurer³, Karlheinz Lindl³

¹University of Wuppertal, Germany; ²Amprion GmbH, Germany; ³Maschinenfabrik Reinhausen GmbH, Germany

Predicting Transformer Resonance and Failure Risks via Natural Frequency Analysis

Irene Woyna¹, Ali Al-Abadi¹, Digpalsinh Parmar²

¹Hitachi Energy Germany AG, Germany; ²Hitachi Energy India Limited, India

New Approach for differentiated Health Index for Substation Assets

Philipp Masmeier, Dr. Johannes Kreling, Dr. Andreas Kurz

Messko GmbH, Germany