Vol. 63 No. 1-4 (2014): 2014 Special Issue - Papers from 3rd International Colloquium “Transformer Research and Asset Management”

Special Issue Article

• Direct current compensation – field experience under service conditions

  Helfried Passath, Gerald Leber, Peter Hamberger, Florian Bachinger

  3-12

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• Influencing factors in insulation model testing

  Petar Gabrić, Antun Mikulecky, Damir Ilić, Vladimir Podobnik

  13-21

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• Temperature rise of power transformers: comments and proposals to IEC 60076-2:2011

  Zdenko Godec, Vjenceslav Kuprešanin

  22-34

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• Application of the temperature-time method for measurement of local power losses in transformer steel parts

  Robert Sitar, Žarko Janić

  35-42

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• New method to optimize no-load noise of power transformers based on core design & transformer operating conditions

  Ahmed Gamil, Franz Schatzl

  43-51

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• Analysis and experimental verification of static tilting behaviour of CTC in transformer windings

  Bruno Bošnjak, Mario Stuhne

  52-62

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• Pushing the boundaries of inductive voltage transformer design

  Igor Žiger, Danijel Krajtner, Zvonimir Ubrekić

  63-73

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• Design improvements in modern distribution transformers

  Branimir Ćućić, Nina Meško, Martina Mikulić, Dominik Trstoglavec

  74-81

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• Evaluation of different types of steel under high loading rates for short circuit applications

  Emanuel Almeida, Pedro Pedro, Paulo Martins, Carlos Silva

  82-94

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• Magnetizing current of a Large Power Transformer and its Harmonic Spectrum in Normal and GIC conditions

  Leonardo Štrac, Franjo Kelemen

  95-103

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• Structural-mechanics analysis of the 10g transformer impact

  Zoran Andjelic, Ramsis Girgis, Asim Fazlagic, Alessandro Regalino, Claude J. Lambert, A. Seidel, M. Ries

  104-113

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• Ultrasonic method for testing of power transformers

  Danijel Brezak, Dalibor Filipović-Grčić

  114-123

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• Checking of the condition of transformers and the efficiency of oil regeneration with RVM (return voltage measurement)

  Bálint Németh, Gusztáv Csépes, István Kispál, Zsolt Laczkó

  124-134

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• Thermal stability change of synthetic ester-based transformer oil

  Veronika Haramija, Dijana Vrsaljko, Vedran Đurina, Domagoj Vrsaljko

  135-140

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• New tools for enhanced diagnostics of DGA data

  David Bidwell, Donal Skelly

  141-149

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• An aspect of transformer inrush current

  Ivan Šulc, Robert Sitar, Antun Mikulecky

  150-155

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• Testing of models of explosion protection system for highvoltage oil-filled electrical equipment

  Leonid A. Darian, Vladimir P. Polistchook, Alexey V. Shurupov

  156-165

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• Estimation of zero sequence impedance in power transformers using 2D and 3D FEM

  Dario Šegović, Franjo Kelemen

  166-171

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• Investigation of impact of magnetic shunt parameters on temperature distribution in transformer tanks

  Saravanan Selvaraj, Ronny Mertens, Geert Caluwaerts, Mahesh B. Varrier, Rafiq Mathersa

  172-178

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• CFD simulation of pressure loss in HVDC transformer winding

  Ralf Wittmaack

  179-188

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• Coupled magneto-mechanical finite element analysis of a power transformer in short circuit conditions

  Bruno Bošnjak, Andreas Hauck, Hermann Landes

  189-198

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• Generic approach to calculation of short circuit currents in power transformers

  Kosjenka Capuder, Goran Plišić, Željko Štih

  199-208

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• Seismic analyses for power transformers

  Robert Platek, Grzegorz Juszkiewicz

  209-216

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• Statistical and numerical analysis of transformer oil AC breakdown

  Mladen Marković, Ivanka Radić, Vlatka Matun

  217-226

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• Insulation optimization of power transformer leads

  Mladen Marković

  227-234

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• Lightning impulse modeling and simulation of dry-type and oil-immersed power- and distribution transformers

  Jasmin Smajic, Roman Obrist, Martin Rüegg, Bogdan Cranganu-Cretu, Carlos Roy, Benjamin Weber, Ebrahim Rahimpour

  235-243

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• Influence of winding capacitances to ground modelling on the calculation of transferred voltages in power transformer

  Kosjenka Capuder, Goran Plišić

  244-251

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• Study of Transient Interaction in a System with Transformer Supplied from Network through a Cable: Assessment of Interaction Frequencies and Resonance Evolvement

  Vasily Larin, Daniil Matveev

  252-261

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• Case study on transformer models for calculation of high frequency transmitted overvoltages

  Bruno Jurišić, Ivo Uglešić, Alain Xemard, Françoise Paladian

  262-272

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