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Advanced Research Workshop on Modern Transformers 28 -30 October. Vigo – Spain

ARWtr 2004

Advanced Research Workshop on Modern Transformers

28 -30 October, Vigo – Spain

ARWtr 2004

Programme

Dept. of Electrical Engineering University of Vigo- Spain

Institute of Mechatronics and Information Systems Tech. University of Lodz - Poland

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ARWtr 2004

WELCOME TO ARWtr 2004 On behalf of the Organising Committee, may w e give you the warmest welcome to ARWtr 2004 and to Vigo. This meeting is devoted entirely to transformers. ARWtr 2004 appears in it first edition, shaped as unique event in the world covering the three main areas related to transformers: High Frequency Transformers; Power Transformers; and Instrument Transformers. An international group of outstanding transformer experts , the key speakers, will present and stimulate discussion on contemporary economic, design, diagnostics and maintenance aspects of modern transformers. We would like to thank all participants and committee members who have made important contributions. Especially to section chairmen, for their invaluable effort by reviewing the proposals and organising of the programme. In addition to the technical sessions, a number of social events have been arranged. On Thursday evening we will have a Reception at Pazo de Catrelos (Castrelos´s Galician Place) and Friday evening the Dinner at Restaurante el Castillo (Castle’s Restaurant). After workshop days, on Sunday 31, an optional Santiago de Compostela trip is organised for all participants who whish. We hope you find the Workshop enriched technically and scientifically, and stimulating for making many fruitful personal contacts for future collaborations. Also, we whish that you enjoy your visit to the Vigo area and Galicia autonomous country.

Prof. Xose M. López Fernández Director of ARWtr

Prof. Janusz Turowski Co-Director of ARWtr

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ARWtr 2004

THE ARWtr 2004 IS ORGANISED BY

Dept of Electrical Engineering

University of Vigo

Spain

Institute of Mechatronics and Information Systems

Technical University of Lodz

Poland THE ARWtr 2004 IS UNDER HONORARY PATRONAGE OF

Polish UNESCO-UNISPAR Working Group Society

CIGRE Spanish National Committee

CIGRE Portuguese National Committee

CIGRE Study Committee A2 Transformers – París

THE ARWtr 2004 IS SUPPORTED BY

Spanish Ministry of Science and Technology

Xunta de Galicia – Dept. of Innovation, Industry & Trade

University of Vigo

Xunta de Galicia – Conselleria de Educación y Ordenación Universitaria

Xacobeo 2004

Vigo Council

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ARWtr 2004

INTERNATIONAL ORGANISING COMMITTEE Xose M. López Fernández (Director) University of Vigo Spain

J. Turowski (Co-Director) Technical University of Lodz, Poland

H. B. Ertan (Advisory member) Middle East Technical University Ankara, Turkey

LOCAL ORGANISING MEMBERS Barreal Adrán, Laura Fernández Bouza, Marta Fernández Rodríguez, Natalia Filgueira Pérez, Javier García Villasante, Javier González Salgado, Darío Lago Nogueira, Moisés Comesaña Pazos, Diego Peláez González, Regino Sáez Tort, Margarita These members are under and post graduated students of Electrical Engineering of University of Vigo.

INTERNATIONAL HONORARY COMMITTEE Philipe Guuinic Chairman of CIGRE Study Committee A2 (Transformers) –Paris

Pedro Merino Gómez Autonomous Galicia Government, Spain Director of Dept. of Innovation, Industry & Trade-Xunta de Galicia

Francisco Salamanca Segoviano Chairman of CIGRE Spanish National Committee

José Penedos Chairman of CIGRE Portuguese National Committee

INTERNATIONAL TECHNICAL COMMITTEE

J. Turowski (Chairman) President of Polish UNESCO-UNISPAR Working Group Society

Xose M. López-Fdez (Secretary) University of Vigo, Spain

H. B. Ertan (Section I Chairman) Middle East Technical University, Ankara, Turkey M. Kazmierski (Section II Chairman) Power Transformer Institute of Lodz, Poland

E. Lesniewska (Section III Chairman) Technical University of Lodz (TUL), Poland

J. Gyselinck (Inter-Sections Coordinator) Free University of Bruessels, Belgium

A. Bossi University of Pavia, Italy

A. Ibero ARTECHE. Director of Division of HV . Bizkaia, Spain

A. J. Kachler SIEMENS AG, Transformers, Nuremberg, Germany

D. J. Allan University of Manchester, UK

I.Pinkiewicz Polish representative to the CIGRE SC A2

J. K. Sykulski University of Southampton, UK

J.C. Burgos Carlos III University, Madrid, Spain

M. Oliva Spanish representative to the CIGRE SC A2

M. Silvestre EFACEC Transformers - Porto, Portugal

P. Lefley University of Leicester, UK

R. Lucke FIT-Ceramics, Germany

R. Malewski Malewski Electric Consultancy

S.V. Kulkarni Indian Institute of Technology-Bombay, India

Y. Danilevich Russian Academy of Sciences, Saint-Petersburg

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ARWtr 2004

COLLABORATORS Sincere thanks are expressed to the institutions listed below who have given support to ARWtr 2004.

- ARTECHE Instrument Transformers - Spain

- EFACEC Energy – Porto, Portugal

- ABB Power Technology – Spain

- CIGRE - Study Committee A2 Transformers, Paris

- CIGRE - Spanish National Committee

- CIGRE – Portuguese National committee

- Polish UNESCO - UNISPAR Working Group Society

- REE - Red Eléctrica de España

- REN – Red Eléctrica Nacional, S.A.

- IMSI – Institute of Mechatronics and Information Systems - TUL – Lodz-Poland

- UNIVERSITY OF VIGO- Spain

- MCYT - Spanish Ministry of Science and Technology

- XUNTA DE GALICIA - Industry & Trade

- XUNTA DE GALICIA – Education & University

- CAIXANOVA

- INDIELEC - Ingeniería de Diseño Electrotécnico, S.L.

- CEDRAT

- XACOBEO 2004

- VIGO COUNCIL

- DEPUTACION DE PONTEVEDRA

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ARWtr 2004

AIM AND TOPICS The aim of the Advanced Research Workshop on Modern Transformers (ARWtr 2004) is to provide a meeting of specialists among industrial and academic world and promote an intense exchange of knowledge about new trends and issues on modern transformers, into the three main areas: High frequency; Power; Instrument. The main topics are concerned with: Design & test; Diagnostic; Maintenance; Materials; Economics; and New technology. In particular are involved the following aspects: Acceptance test; Computation and problems of windings; Computation and problems of cores; Computational software; Criteria for the short-circuit proof design; Design and modelling; Heating and cooling; Life management of transformers; Mechanical design of tanks, undercarriage; Noise and vibration; Optimal selections between different core types; Stray losses, screening and local excessive heating hazard; Superconducting; Economic in transformer management. PUBLICATION All papers presented at the ARWtr 2004 will be collected in the Workshop Proceeding. After the event, the lectures and some of the papers accepted in the reviewing process, the organisers are considering with key speakers the publication of a book on modern transformers. OFFICIAL LANGUAGE English is the Official language of ARWtr 2004. BADGES An admission badge is provided after the registration to each participant, which gives access to technical sessions and social events during the three ARWtr 2004 days. PARTICIPATION FEE

The registration implies to cover the Participation Fee, which gives admission during the three ARWtr 2004 days to access to the technical sessions, lunches, coffee breaks, social activities and proceedings.

Before September 10 After Sept 10

Participants 320 (290 for CIGRE Members (#)) EURO 460 EURO

Young researchers(*) 320 (290 for CIGRE Members(#)) EURO 350 EURO

Additional paper by the same author 120 EURO 120 EURO

Accompanying persons (Social activities and lunches during ARWtr2004) 150 EURO 150 EURO (*) Faculty or Department certificate will be sent – (#) Certificate will be sent

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ARWtr 2004

LUNCH Lunches are included in the Participation Fee and will be served at 13:00 PM each day in Marisquería Bahía de Vigo hotel, located five minutes walking from the Caixanova Cultural Centre venue. Admission to lunch will be by badge, which registrants are requested to wear all times. COFFEE BREAKS Coffee, tea and refreshments will be served at Sala de Recepciones in the 2nd floor of Caixanova venue in mid-morning and mid-afternoon period as indicated in the schedule. VENUE & DATES ARWtr 2004 will be located in Caixanova Cultural Centre (Policarpo Sanz, 13 st.). The workshop days will be held from 28 to 30 October, 2004.

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ARWtr 2004

HOTEL ACCOMMODATIONS The Organisation proposes the three hotels with special rates listed below for ARWtr2004 participants, who will book hotel they self directly.

HOTEL HUSA BAHIA DE VIGO * * * * (It is five minutes walking from Caixanova Venue) Person of contact: Marisa Piñeiro E-mail: [email protected]

Single room: 60 Euros Double room: 95 Euros http://www.hotelbahiadevigo.com

Hotel Tres Luces * * * (It is fifteen minutes walking from Venue) Person of contact: Beatriz Gonzalez E-mail:[email protected]

Single room: 55,05 Euros Double room: 67,05 Euros http://www.hotel3luces.com

Hotel IBB Ensenada * * * (It is ten minutes walking from Venue) Person of contact: Jesus Cardona E-mail: [email protected]

Single room: 40 Euros Double room: 55 Euros

http://www.ibbhotels.com/uk/html/hotels/ensenada.html

- Prices above include accommodation with breakfast and VAT - Please identify yourself as an attendee of the ARWtr04 - Hotel reservations should be made before September 1, 2004

For further more information about accommodation:

http://webs.uvigo.es/arwtr04 / - http://interhotel.com/spain/en/localidades/683.html WEATHER Usually in October, the temperature is between 23 ºC during the day and 10 ºC in the night. Intervals sunny and cloudy days with some showers. TO GET VIGO Vigo is well connected to the world by means of a good network of motorways, its airport (Peinador) and its railway station. By train (http://www.renfe.es/): the train station is located in the city centre just near Hotel IBB Ensenada. There are daily express and "Talgo" trains to Madrid and Barcelona. By plane (http://www.aena.es ): Peinador airport is 10 kilometres from the city centre. The price of the taxi from Peinador to city centre is around 20 Euros. It has a wide range of scheduled flights to Madrid, Barcelona, Bilbao, Valladolid, Paris and Frankfurt, as well as charter flights. Santiago de Compostela (Labacolla airport: 90 km far by motorway) and Porto-Portugal (Sa Carneiro airpot: 100 km far by motorway) are useful international Connections. These last two airports are linked by buses. For further information: http://www.vigo.org

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ARWtr 2004

SOCIAL PROGRAMME On Thursday evening 28 October a Reception will be held at Pazo de Castrelos at about 8.00 PM. Pazos (Palaces) are stately mansions built in the country either as permanent or temporary residences for Galician noblemen and illustrious families. They were mainly built during the 17th and 18th centuries and their dimensions, together with the coats of arms they display, towers, sun lounges, chapels and the lush gardens which surround them, make them outstanding. On Friday 29 October, the Dinner will be held at Restaurante el Castillo at about 8.00 PM. Restaurante el Castillo has an exceptional view over the most beautiful of the Rias (natural estuaries formed by mountains, beaches and sea) which is named Ria de Vigo. The Dinner Menu will be the well world known fresh shellfish and fish of Vigo, directly form the Ria. POST-EVENT TRIP On Sunday 31 October, a post-event trip will offer to participants and accompanying people. It represents a unique opportunity to visit the exquisite scenery of Santiago de Compostela. Santiago an UNESCO-World Heritage City is a precious jewel in stone. From the 9th century onward, European Christendom was to fix its gaze on Compostela. There, an ancient tomb is recognized as that of the Apostle St. James the Greater. The Romanesque Cathedral of Santiago, begun in 1075, is the acme of the temples of pilgrims. Nowadays, it is the administrative capital of Galicia. This year, Santiago celebrates its first (Holy Year) Xacobeo 2004 of the new millennium in honour of Saint James. For further information: http: //www.xacobeo.es - http://www.turgalicia .es SECTIONS

The main subject of the ARWtr 2004 is Transformers, which is divided in three important areas or Sections:

- High Frequency Transformers (HFT) - Power Transformers (PT) - Instrument Transformers (IT) Each SECTION is coordinated by a Chairman:

- High Frequency: Prof. Ertan - Power Transformer: Dr. Kazmierski - Instrument Transformer: Prof. Lesniewska SESSIONS

The Section consist of Sessions, which are collected into three kind of sessions as following: Oral Sessions (45 minutes) For lectures of key speakers. Each lecture is a oral session itself conducted by one/two session chairman/en. In the oral session the key speakers will deliver fixed lectures on

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ARWtr 2004

key topics of transformers during 45 minutes period (25-30 for presentation and 20-15 for discussion). Poster Sessions (60 minutes) All participants will have the possibility of presenting their own works and contributions during the coffee break-poster sessions. Each poster session (60 minutes) covers the two coffee breaks (30 minutes) per day: one mid-morning and another one mid-afternoon. In each poster session there will be two chairmen. Special Sessions (45 minutes) The special session is devoted for discussion of the current challengers/conclusions and recommendation for future research and actions. Like a “Table”, will be conducted by a session chairman and supported by 2-3 specialists. They will set the different points and lines of discussion during 20-25 minutes and state open discussion during the last 20 minutes. KEY SPEAKERS AND LECTURES The key speakers are a selected group of outstanding international specialist on Transformers, who will deliver the lectures into oral session on key topics, such as following:

Section I - HIGH FREQUENCY TRANSFORMERS (HFT) Session 1-HFT Measurement and calculation of leakage inductance and stray capacitance of

high frequency transformers Prof. H. Bulent Ertan (Middle East Technical University, Turkey)

Session 2-HFT Soft magnetic ferrites optimized for power transformers, state of art and trends in high frequency transformers

Dr. Ralph Lucke (FIT-Ceramics. Germany) Session 3-HFT Transformers design for HV, high frequency, high power

Dr. Paul W. Lefley (University of Leicester. UK)

Section II- POWER TRANSFORMERS (PT) Session 4-PT Selected problems of transformers. Short circuit withstandability

Dr. Wladyslaw Pewca (IEnOTransformers, Poland) Session 5-PT Universal network-link transformer: The polytransformer concept

Eng. Miguel Oliva (ABB Transformers, Spain) Session 6-PT Insulation problems of HV power transformers

Prof. Andrey Lochanin (Electrical Institute, Russia) Session 7-PT Stray losses, screening and local heating excessive heating hazard in large power transformers

Prof. Janusz Turowski (TUL, Poland) Session 8-PT Transformer design review- a link between design and maintenance stages

Dr. Ryszard Sobocki (PPGC, Poland) Session 9-PT Power transformers acceptance tests

Prof. Ryszard Malewski (Malewski Electric Consultancy, Poland) Session 10-PT Functional and component related diagnostics for power transformers, a basis for successful “Transformer life management”

Dr. Adolf J. Kachler (SIEMENS AG, Germany) Session 11-PT Life management of transformers

Dr. Marceli Kazmierski (IPE, Power Transformers, Poland) Session 12-PT Challenges and strategies in transformer design

Prof. S. V. Kulkarni (Indian Institute of Technology-Bombay, India)

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ARWtr 2004

Session 13-PT On-site transformer management Eng. Tadeusz Domzalski (APEE, Poland)

Session 14-PT Superconducting transformers Prof. Jan K. Sykulski (University of Southampton, UK)

Session 15-PT Innovative solution to overcome transport restrictions of large power transformers and autotransformers

Eng. M. Silvestre (EFACEC Energy, Portugal) The first phase-shifting power autotransformers on the Portuguese Transmission Network

Eng. J. Ricardo (REN-Rede Electrica Nacional SA, Portugal)

Section III - INSTRUMENT TRANSFORMERS (IT) Session 16-IT Applications of the field analysis during design process of instrument

transformers Prof. Elzbieta Lesniewska (TUL, Poland)

Session 17-IT CAD system-boundary integral equation method for 3D field analysis of voltage transformers

Prof. Ivan Yatchev (Tech. University of Sofia, Bulgaria) Session 18-IT Instrument transformers insulation behaviour to HV and high frequency transients

Dr. Adolfo Ibero (ARTECHE HNOS SA, Mungia, Spain) Session 19-IT Experiences with the applications of MV inductive and electronic instrument transformers

Dr. Milos Dvorak (ABB EJF, Brno, Czech Republic) Session 20-IT The transfer of RF interference through instrument transformers

Dr. Wieslaw Jalmuzny (TUL, Poland) SCHEDULE

Thursday 28 Friday 29 Saturday 30

8:00 – 8:30 Registration

8:45 – 9:15 Opening Session 9:15 – 10:00 Session 1-HFT Session 9-PT Session 17-IT 10:00 – 10:45 Session 2-HFT Session 10-PT Session 18-IT

10:45 – 11:15 Coffee Break – Poster Session -1- 2 - 3

11:15 – 12:00 Session 3-HFT Session 11-PT Session 19-IT

12:00 – 12:45 Session.4-PT Session 12-PT Session 20-IT 12:45 – 14:15 Lunch at Marisquería Hotel Bahia de Vigo

14:15 – 15:00 Session 5-PT Session 13-PT Special Sessions PT 15:00 – 15:45 Session 6-PT Session 14-PT Special Sessions PT 15:45 – 16:15 Coffee Break – Poster Session -1- 2 - 3

16:15 – 17:00 Session.7-PT Session 15-PT Special Sessions HF& IT 17:00 – 17:45 Session 8-PT Session 16-IT Conclusion Session

20:00 – Reception Pazo de Castrelos

Dinner Restaurante el Castillo

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ARWtr 2004

PROGRAMME & TIMETABLE

Thursday – October 28, 2004 8:00 - 8:30 Registration

8:45 - 9:15 Opening Session

9:15 –

10:00

Session 1- HF

Measurement and prediction of parameters of high frequency transformers Prof. H. Bulent Ertan, Erdal Bizkevilci, and Levent B. Yalçiner (Middle East Technical University, Turkey)

10:00 –

10:45

Session 2- HF

Soft magnetic ferrites optimized for power transformers, state of art and trends in HF Dr. R. Lucke (FIT-Ceramics. Germany)

Coffee Break – Poster Session -1

10:45 –

11:15

Use of coreless planar transformers in the drivers of power transistors Jesús Doval Gandoy and Moisés Pereira Martínez (Electronics Technology Department, University of Vigo, Spain)

New Designs of distribution transformers for MV/LV substations Pablo Eguía López, Inmaculada Zamora, A. Javier Mazón, Elvira Fernández, Victor Valverde and Igor Albizú (Department of Electrical Engineering, University of the Basque Country, Spain)

Windings disposition effect on distribution transformers behaviour under short-circuit condition Diego García, Hector Cadavid Ramírez and Nelson Alfonso (Universidad del Valle High Voltage Research Group GRALTA, Cali- Colombia)

Short-circuit performance of power transformers. Test experience, including fault diagnostic Alexander Yu. Khrennikov (Federal Grid Company, Moscow, Russia)

Absolute or relative values must be compared during short-circuit ability evaluation? Drobshevskyi A.A., Zenova V.P., Levickaja E.I., Lokhanin A.K., Lurie A.I. and Panibratets A.N. ( All-Russian Electrotechnical Institute (VEI),Russia)

11:15 –

12:00

Session 3-HF

High frequency transformers design for HV power supplies Dr. Paul Lefley (University of Leicester. UK)

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ARWtr 2004

12:00 -

12:45

Session.4-PT

Short circuit strength of transformers Dr. Wladyslaw Pewca (IEnOTransformers, Poland)

12:45 - 14:15 Lunch at Marisquería Hotel Bahía

14:15 –

15:00

Session 5-PT

Universal network-link transformer: The polytransformer concept Eng. Miguel Oliva and Eng. Antonio Marín (ABB Power Transformers, Spain) Eng. Francisco Salamanca and Eng. Ricardo Salazar (REE – Red Eléctrica Nacional de España, Spain)

15:00 -

15:45

Session 6-PT

Insulation problems of HV power transformers Prof. Andrey Lochanin (Electrical Institute, Russia)

Coffee Break – Poster Session - 1

15:45 -

16:15

Use of coreless planar transformers in the drivers of power transistors Jesús Doval Gandoy and Moisés Pereira Martínez (Electronics Technology Department. University of Vigo. Spain)

New Designs of distribution transformers for MV/LV substations Pablo Eguía López, Inmaculada Zamora, A. Javier Mazón, Elvira Fernández, Victor Valverde and Igor Albizú (Department of Electrical Engineering, University of the Basque Country, Spain)

Windings disposition effect on distribution transformers behaviour under short-circuit condition Diego García, Hector Cadavid Ramírez and Nelson Alfonso (Universidad del Valle High Voltage Research Group GRALTA. Cali- Colombia)

Short-circuit performance of power transformers. Test experience, including fault diagnostic Alexander Yu. Khrennikov (Federal Grid Company, Moscow, Russia)

Absolute or relative values must be compared during short-circuit ability evaluation? Drobshevskyi A.A., Zenova V.P., Levickaja E.I., Lokhanin A.K., Lurie A.I. and Panibratets A.N. ( All-Russian Electrotechnical Institute (VEI),Russia)

16:15 –

17:00

Session.7-PT

Stray losses, screening and local excessive heating hazard in large power transformers Prof. Janusz Turowski (Technical University of Lodz (TUL), Poland)

17:00 –

17:45

Session 8-PT

Transformer design review- a link between design and maintenance stages Dr. Ryszard Sobocki (PPGC, Poland)

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ARWtr 2004

Friday – October 29, 2004

9:15 – 10:00

Session 9-PT

Power transformers acceptance tests Prof. Ryszard Malewski (Malewski Electric Consultancy, Poland)

10:00 –

10:45

Session 10- PT

Functional and component related diagnostics for power transformers, a basis for successful “Transformer life management” Dr. Adolf J. Kachler and I. Höhlein (SIEMENS AG, Germany)


10:45 –

11:15

Incipient turn-to-turn winding fault diagnosis of power transformers by the on-load exciting current Extended Park's Vector Approach Luis M. R. Oliveira (Escola Sup. de Tecnologia da Universidade do Algarve, Portugal) A.J. Marques Cardoso (Universidade de Coimbra, Portugal)

Influence of harmonic polluted loads on the performance of a proposed relay based on an orthogonal transformation of the differential signal Pablo Arboleya, Guzmán Díaz, Javier Gómez -Alexandre and Nicolás de Abajo (Department of Electrical Engineering, Universisty of Oviedo, Spain)

Application of Clarke transformation to the protection of multi-winding transformers Pablo Arboleya, Guzmán Díaz, Javier Gómez -Alexandre and Nicolás de Abajo (Department of Electrical Engineering, Universisty of Oviedo, Spain)

Condition monitoring of power transformers: A review Rajinder Kaur ( Dept of Electrical and Instrumentation Eng. Sangrur, Punjab – India) and Sukhwinder Singh Nandra (Punjab State Electricity Board – India)

Finite element analysis and design of transformers Vicente Aucejo (INDIELEC – Ingeniería de Diseño Electrotécnico, S.L, Spain) Rafael Vives (Advanced Electromechanical Research Group, Valencia, Spain) Xose M. López Fernández (Dept. of Electrical Engineering, University of Vigo, Spain

11:15 –

12:00

Session 11-PT

Life management of transformers Dr. Marceli Kazmierski (IEnOTransformers, Poland)

12:00 –

12:45

Session 12-PT

Challenges and strategies in transformer design Prof. S. V. Kulkarni (Indian Institute of Technology-Bombay, India)


14:15 –

15:00

Session 13- PT

On-site transformer management Tadeusz Domzalski (APEE, Poland)

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ARWtr 2004

15:00 –

15:45

Session 14-PT

Superconducting transformers Prof. Jan K. Sykulski (University of Southampton, UK)


15:45 –

16:15

Incipient turn-to-turn winding fault diagnosis of power transformers by the on-load exciting current Extended Park's Vector Approach Luis M. R. Oliveira (Escola Sup. de Tecnologia da Universidade do Algarve, Portugal) A.J. Marques Cardoso (University of Coimbra, Portugal)

Influence of harmonic polluted loads on the performance of a proposed relay based on an orthogonal transformation of the differential signal Pablo Arboleya, Guzmán Díaz, Javier Gómez -Alexandre and Nicolás de Abajo (Department of Electrical Engineering, Universisty of Oviedo, Spain)

Application of Clarke transformation to the protection of multi-winding transformers Pablo Arboleya, Guzmán Díaz, Javier Gómez -Alexandre and Nicolás de Abajo (Department of Electrical Engineering, Universisty of Oviedo, Spain)

Condition monitoring of power transformers: A review Rajinder Kaur ( Dept of Electrical and Instrumentation Eng. Sangrur, Punjab – India) and Sukhwinder Singh Nandra (Punjab State Electricity Board – India)


16:15 –

17:00

Session 15-PT

Innovative solution to overcome transport restrictions of large power transformers and autotransformers Eng. Jorge Liça and Eng. José Henriques (REN – Red Eléctrica Nacional, S.A. ) Eng. Manuel Silvestre and Eng. Pedro Pedro (EFACEC Engergia, S.A. )

The first phase-shifting power autotransformers on the Portuguese Transmission Network Eng. Joa Ricardo and Eng. Medeiros Pinto, Eng. Fernando Coelho and Eng. Luís Perro (REN – Red Eléctrica Nacional, S.A.) Eng. Manuel Silvestre and Eng. Pedro Pedro (EFACEC Engergia, S.A.)

17:00 –

17:45

Session 16-IT

Applications of the field analysis during design process of instrument transformers Prof. Elzbieta Lesniewska (TUL, Poland)

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ARWtr 2004

Saturday – October 30, 2004

9:15 –

10:00

Session 17-IT

CAD system-boundary integral equation method for 3D field analys is of voltage transformers Prof. Ivan Yatchev and Radoslav Miltchev (Tech. University of Sofia, Bulgaria)

10:00 –

10:45

Session 18- IT

Instrument transformers insulation behaviour to HV and HF transients Dr. Adolfo Ibero (ARTECHE HNOS SA, Mungia, Spain)


10:45 –

11:15

Frequency and time domain homogenization of laminated magnetic cores and windings in FE models of HF electromagnetic devices Johan Gysenlinck (Dept of Electrical Engineering, Free University of Brussels,Belgium) Xose M. López Fernández (Dept. of Electrical Engineering, University of Vigo, Spain)

Finite e lement analysis and design of transformers Vicente Aucejo (INDIELEC – Ingeniería de Diseño Electrotécnico, S.L, Spain) Rafael Vives (Advanced Electromechanical Research Group, Valencia, Spain) Xose M. López Fernández (Dept. of Electrical Engineering, University of Vigo, Spain

The ferroresonance critical cable length for distribution transformers Guillermo Aponte, Ferley Castro Aicardo Vargas and Jairo Suárez (Universidad del Valle High Voltage Research Group GRALTA. Cali- Colombia)

Software tools for FRA techniques Jorge Pleite, Carlos González, Emilio Olías, Andrés Barrado, Antonio Lázaro and Juan Vázquez (Universidad Carlos III de Madrid, Spain)

Model for top oil temperature calculation in power transformers Belén García, Juan C. Burgos (Spain), Domingo Urquiza (Universidad Carlos III de Madrid, Escuela Politécnica Superior, Madrid, Spain) Angel Alonso (Universidad Politécnica Superior de Madrid, Spain)

11:15 –

12:00

Session 19-IT

Experiences with the applications of MV inductive and electronic instrument transformers Dr. Milos Dvorak (ABB EJF, Brno, Czech Republic)

12:00 –

12:45

Session 20-IT

Transfer of HF disturbances through instrument transformers Prof. Andrej Koszmider and Dr. Wieslaw Jalmuzny (TUL, Poland)


14:15 –

15:00

Special Session - P T

Diagnostics Chairman: Prof. A.J. Marques Carodoso (University of Coimbra, Portugal) Speakers: Dr. Adolf Kachler (SIEMENS AG, Nuremberg, Germany)

Prof. Juan C. Burgos (Univesidad Carlos III de Madrid, Spain)

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ARWtr 2004

15:00 –

15:45

Special Session - P T

Economics in transformer management Chairman: Dr. Marceli Kazmierski (IEnOTransformers, Poland) Speakers: Eng. Kjetil Ryen (NVK Multicosult, Norway)


15:45 –

16:15

Frequency and time domain homogenization of laminated magnetic cores and windings in FE models of HF electromagnetic devices Johan Gysenlinck (Dept of Electrical Engineering, Free University of Brussels,Belgium) Xose M. López Fernández (Dept. of Electrical Engineering, University of Vigo, Spain)


The ferroresonance critical cable length for distribution transformers Guillermo Aponte, Ferley Castro Aicardo Vargas and Jairo Suárez (Universidad del Valle High Voltage Research Group GRALTA. Cali- Colombia)

Software tools for FRA techniques Jorge Pleite, Carlos González, Emilio Olías, Andrés Barrado, Antonio Lázaro and Juan Vázquez (Universidad Carlos III de Madrid, Spain)

Model for top oil temperature calculation in power transformers Belén García, Juan C. Burgos (Spain), Domingo Urquiza (Universidad Carlos III de Madrid, Escuela Politécnica Superior, Madrid, Spain) Angel Alonso (Universidad Politécnica Superior de Madrid, Spain)

16:15 –

17:00

Special Session - HFT

High frequency Chairman: Prof. H. Bulent Ertan

Special Session - IT

Instrument Transformers Chairman: Prof. Elzbieta Lesni ewska (TUL, Poland)

17:00 –

17:45

Conclusion Session

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ARWtr 2004

The institutions involved in ARWtr 2004 . ABB CZECH REPUBLIC

ABB Power Technology SPAIN

Actaris Contadores S.A. SPAIN

ALCOA EUROPE – Alumina & Alumino Production SPAIN

ARTECHE Hermanos SPAIN

Association of Polish Electrical Engineering POLAND

CEDRAT, Grenoble FRANCE

Crompton Greaves Limited INDIA

EFACEC Energy PORTUGAL

EMCO Transformer Works INDIA

EMENASA,Vigo SPAIN

Enerco Enterprises LTD ISRAEL

EPCOS AG GERMANY

FIT – Ceramics GERMANY

Free University BELGIUM

Ganz Transelektro Electric Co. HUNGARY

HESIA, a.s. CZECH REPUBLIC

IBERDROLA Distribution SPAIN

IMEFY S.L. SPAIN

Indian Inst. of Technology –Bombay INDIA

INDIELEC, Valencia SPAIN

INDUSTRIAS IEM MEXICO

Instytut Elektrotechniki, Warsaw POLAND

KINECTRICS INC. CANADA

Laboratorio de calibración official de España (LCOE) SPAIN

Middle East Technical University TURKEY

National Academy of Sciences UKRAINE

National Technical University of Athens GREECE

NVK Multiconsult AS NORWAY

Polish Power Grid Company POLAND

Punjab State Electricity INDIA

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ARWtr 2004

Red Eléctrica de España (REE) SPAIN

Red Eléctrica Nacional (REN) PORTUGAL

REPSOL YPF SPAIN

Russian Electrotechnical Institute, Moscow RUSSIA

SHSL– CIET of Longowal INDIA

SIEMENS AG GERMANY

Siemens Portugal PORTUGAL

SIEMENS S.A. Distribution Transformer Branch COLOMBIA

Siemens Spain SPAIN

Soluziona SPAIN

Tarapur Transformers PVT. LTD. INDIA Technical University of Lodz POLAND

Technical University of Sofia BULGARIA

Transformer Institute of Lodz POLAND

Transformers & Rectfiers LDT INDIA

UNION FENOSA Distribution SPAIN

University of Algarve PORTUGAL

University of Basque Country SPAIN

University of Carlos III SPAIN

University of Coimbra PORTUGAL

University of Leicester UK

University of Oviedo SPAIN

University of Southampton – UK UK

University of Valencia SPAIN

University of Vigo SPAIN

Valle University COLOMBIA

VOLTAMP Transformer PVT LTD. INDIA

WEIDMANN Transformerboard Systems AG SWITZERLAND

Wilson Transformer Co, Victoria AUSTRALIA

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ARWtr 2004

COLLABORATORS

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ARWtr 2004

Address for Correspondence

ARWtr 2004 Secretariat ETSII – Dep. of Electrical Engineering Campus Lagoas, 9 – 36310 Vigo, Spain

Tel.: 00 34 86 812177 – Fax: 00 34 986 814014 E-mail: [email protected] ARWtr 2004 Website: http://webs.uvigo.es/arwtr04

programme - universidade de vigoarwtr04.webs.uvigo.es/textos/arwtr04_programa.web.pdf · an...

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