Design of transformers for very fast transient overvoltages

Álvaro Portillo

Empirical Representation of Transformer Branch Impedance Frequency Dependency

Bjørn Gustavsen, Luiz Oliveira, Alvaro Portillo, Federico Portillo

Interaction of Power Transformers and 145 kV GIS Disconnectors: Experimental Study on the Propagation of Very Fast Transient Overvoltages

Michael Bauer, Tobias Wendlinger, Thomas Manthe, Jan Weisker, Mark Reuter

Optimization of the Electrical Insulation Between Grounded Rod and Winding

Filip Krpan, Karlo Petrović, Vjenceslav Kuprešanin, Pavao Križić, Antonija Marčina Brižić

An Investigation on the effect of frequency dependent inductance calculation on high frequency modeling of transformer winding

Morteza Eslamian, Ebrahim Rahimpour, Kabir Sethi

Electromagnetic Modelling of a Phase-Shifting Transformer Based on DC Hysteresis Measurements

Alexander Fröhlich, Dennis Albert, Tomasz Bednarczyk, Sergey Zirka, Gerald Leber, Herwig Renner

Thermo-Hydraulic Network Models: Accuracy and Performance under Operational Scenarios

Johannes Raith, Patrick Picher

Numerical Analysis of Clamping Element Pressure on Power Transformer Core Sheets

Dalibor Leljak, Pavao Barišić

Numerical Vibroacoustic Analysis of a Large Transformer Tank Including Structural and Noise Optimization

Max GILLET, Bruno BOSNJAK, Hermann LANDES, Neeraj KEWAT

Analysing the Effects of Non-standard Overvoltages on the Internal Electrical Stresses along the Transformer Windings

Ebrahim Rahimpour, Alvaro Portillo, Ricardo Castro Lopes

An Accurate Detailed Model for Transformer Disc Windings Suitable for Medium Frequency Range

Jalal Piri, Hassan Reza Mirzaei, Mohammed Bilal Ghorbal, Ebrahim Rahimpour

AI Solutions for Transformer Tank Cover Optimization

Walter Lee, Rajeev Gupta Gupta, Tirdad Boroomand, Gary Pattyson

Thermal Network Modeling of Transformer Windings for Accurate Hotspot Prediction

Ali Al Abadi, Wei Wu, Irene Woyna

Analytical Modeling of Oil Circulation and Nanoparticle Impact on Transformer Temperature Rise

Goran Bulatović, Peter Bokes, Juraj Kurimský, Katarína Paulovičová, Michal Rajňák

DC bias currents in HVDC transformers

Robert Sitar, Longhu Chen, Marcus Rydja

GEOMAGNETICALLY INDUCED CURRENTS AND INFLUENCE ON POWER TRANSFORMER SATURATION

Antonio Gloc, Bruno Jurišić, Božidar Filipović-Grčić

Advanced Scalable WebApp Approach for Automated Simulation of Transformer Components Using Python

Harikrushna Dodiya, Irene Woyna, Luigi De Mercato

Numerical Modeling and Direct Solver Development for Calculation of Power Transformer Core Clamping System Assembly

Davor Ruganec, Pavao Barišić

Adaptive Cross Approximation for Efficient Modeling of Frequency-Dependent Resistance in Multiple-Conductor Systems

Bojan Trkulja, Tomislav Župan, Žarko Janić, Ana Drandic

Circulating Currents in Transformer Clamping System

Stipe Mikulić, Boris Okorn, Damir Žarko

The Influence of Hysteresis Modeling on the Calculation of Magnetic Fields

Stjepan Frljic, Ana Drandic, Bojan Trkulja

Computation of the Turn-by-Turn Inductance Matrix of Transformer Windings by Using Cylindrical Multipole Expansion

Filip Vučić, Žarko Janić, Bojan Trkulja

The Abilities of TDSF and FDSF in Analyzing Voltage Distribution in Different Types of Disc Windings of Power Transformers

Martin Meuser, Ebrahim Rahimpour, Morteza Eslamian

Numerical and Experimental Analysis of Random Fatigue of Welded Connections Based on the Dirlik Method

Samuele Ossola, Sauro Vannicola, Tomasz Nowak, Mariusz Osika, Luigi De Mercato

Challenges regarding Factory Acceptance Test of large unit of Variable Shunt Reactor

Branko Perunicic, Marko Markovic, Goran Raletic, Nebojsa Vucinic

The Impact of New Liquid Dielectric in Power Transformer on the Location and Detection of Partial Discharge Using UHF Sensors

Djordje Dukanac

Assessment of transformer insulation by decision trees using a combinational weighting model

Manoj Teruvai, Shrikrishna V. Kulkarni

Boundary Element and Optimisation-Based Methodology for Transformer Insulation Design

Ana Drandić, Bojan Trkulja, Stjepan Frljić

Thermal Aspects of Insulating Liquids for Transformers: Overview of the NewLifT Project

Camilla Espedal, Håvard Bærug, Henrik Enoksen, Dag Linhjell, Lars E. Lundgaard

Use of re-refined oils in new transformers – pioneering project in Spain

Miguel Martinez, João Guimarães, Vadim Radul, Inna Gerasimova, Maria Reigadas, Myriam Picado, Hugo Campelo

Forecasting dissolved gas analysis in power transformers using machine learning approaches

Vedran Đurina, Marin Schönberger, Vilko Cindrić

Paper Bulging in Conductors for Power Transformer application

Lorenzo Cantini, Giacomo Palermo, Paolo Pavanello, Gianluca Bustreo

Thermal Fault Identification in Transformer Bushings Using Online Monitoring and Offline Testing

Stefano Stagni, Nathan Jacob, Dimytro Golovan

Reference Temperature Challenges in Transformers with Alternative Insulation and Cooling Systems

Mahdi Rahmbeksch, Jean-Claude Duart, Radoslaw Szewczyk

Use of machine learning to calculate the compressed height of power transformers windings

Leonardo Štrac, Carolina Toscano de Jesus, Diogo Fernandes Ribeiro, Davor Fabac

Closed-Form Analytical Inductive Transformer Model for Electromagnetic Transient Response During Line Discharge

Andrea Grđan, Igor Žiger, Zlatko Hanić

Repeated Flashover Test: Influencing Parameter Analysis

Igor Ziger, Marijana Nenadic, Andrea Grđan, Kresimir Koprivec, Tomislav Zupan

Considerations on transformer life determined by deterioration of insulating structure materials

Masanobu Yoshida, Hiroko Isaji

Voltage Transformer Accuracy Performance Calculation Methods

Igor Ziger, Marijana Nenadic, Nikola Budimir, Danijel Brezak

Internal Fault Testing at the Voltage Part of a Combined Power Voltage Transformer

Marijana Nenadić, Igor Žiger, Ivan Crnković, Danijel Brezak

Exploring Intermediate Results of Dynamic Thermal-Hydraulic Network Model Influencing Characteristic Temperatures inside Liquid Immersed Transformers

Zoran Radakovic, Marko Novkovic, Álvaro Portillo, Alexandre Pacheco Gomes, Santhiago Guedes Montenegro

Seismic Stability of the Technical System Cast Resin Transformer

Stanislav Kroták, Denis Kress, Michal Svoboda, Jan Hlaváč

Smarter Transformers, Stronger Grid: POWERGRID’s Digital Condition Monitoring Journey

Gunjan Agrawal, Naveen Srivastava, Deonath Jha, Dr. Devaprasad Paul

Enhancement of Tan-delta Values of Resin Impregnated Paper (RIP) Transformer Bushings by Various Techniques – CASE STUDY

NAVEEN KUMAR, SIVA BEHARA

Arresting of oil leakage in different locations of Transformers/Reactor using thrifty techniques - Case study

SIVA BEHARA, NAVEEN KUMAR