A3-10 (SC) 13 October 04, 2010

CIGRE

Study Committee A3

Minutes of Meeting

Paris, France

August 25, 2010

CONFÉRENCE INTERNATIONALE DES GRANDS RÉSEAUX ÉLECTRIQUES A HAUTE TENSION

INTERNATIONAL CONFERENCE ON LARGE HIGH VOLTAGE ELECTRIC SYSTEMS

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Participants of SC A3 Meeting Paris, August 25, 201 0 SC A3 Chair./Secr.Waldron, Mark A. United KingdomKynast, Edelhard Germany

SC A3 MemberFalkingham, Leslie United KingdomFan, Jianbin ChinaFernandez, Paulo Cesar BrazilGauthier, Laurent FranceHeil, Franz SwitzerlandIto, Hiroki Japan Convener WG A3.22 / A3.28Johnnerfelt, Bengt SwedenKim, Jung Bae KoreaKunt, Jiri CzechLopez-Cormenzana, Manuel SpainMaheshwari, Ankur Australia Convener WG A3.29Mercure, Hubert CanadaMisra, Narendra Nath IndiaNicolini, Roberto ItalyNkosi, Sphiwe South AfricaOhnstad, Trond Magne NorwayPinheiro, Martins Jorge Filipe PortugalSamek, Slawomir PolandSchmitt, Heino Germany Convener WG A3.23Smeets, René P.P. The Netherlands Convener WG A3.27Twomey, Colm Ireland

SC A3 ObserverAzcarraga Ramos, Carlos MexicoChareonsrikasem, Somchai ThailandIvanov, Valery P. RussiaSteensels, Marc BelgiumWidl, Wolfgang E. Austria

Repr/Convener/GuestsDufournet, Denis France IEC TC 17 / SC 17AGiboulet, André France Session SecretaryJanssen, Anton The Netherlands Special ReporterKirchesch, Peter DeutschlandKopejtkova, Dagmar Czech Republic Representative SC B3Peelo, David Canada Convener AG A3.04Richter, Bernhard Switzerland Convener WG A3.17 / A3.25Sölver, Carl-Ejnar Sweden Convener WG A3.06Tantin, Pascal France Convener WG A3.15

GuestsDaisuke, Yoshida Japan Secretary NC JapanMartini, Luciano Italy replacing de NigrisGannon, Brendon AustraliaAmon Filho, Jorge BrazilHyrzak, Antoni PolandKen, Edwards USAvan der Sluis, Lou The NetherlandsWang, Xiaogang ChinaUzelac, Nenad USACheung, Brian United Kingdom

Absent Members, Conveners, RepresentativesBosma, Anne Convener WG A3.26Kriegel, Martin Convener WG A3.24 replaced by SmeetsDe Nigris, Michele Convener WG A3.21 replaced by MartiniGlinkowski, Mietek United StatesAhmethodzic, Almir Bosnia-HerzegovinaStathopoulos, Ioannis A. GreeceBaran, Ileana RomaniaCoa, Raidel VenezuelaESKENAZY, Lilian IsraelGonzalez, Sardi Blas Nelson ArgentinaHeggi, Nahed Ahmed EgyptMohammed, A. Al-Muaili Saudi ArabiaMOULOUA, Ouafa AlgeriaVizintin, Stane Slovenia

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Agenda of SC A3 Meeting, August 25, 2010, Paris, Fr ance 1 Welcome........................................................................................................4 2 Approval of agenda........................................................................................4 3 Approval of minutes of last meeting of SC A3, 2009......................................4 4 Membership ...................................................................................................4 5 CIGRE Technical Committee Report .............................................................4 6 Strategic plan, action plan..............................................................................4 7 SC A3 web page – news, comments .............................................................5 8 Report of Working Groups .............................................................................5

8.1 WG A3.06 - Reliability of HV equipment ......................................................... 5 8.2 WG A3.15 - NCIT.............................................................................................. 5 8.3 WG A3.17 – Surge Arrester ............................................................................. 5 8.4 WG A3.21 – Non-ceramic insulators .................................................................6 8.5 WG A3.22 – UHV-Equipment ........................................................................... 6 8.6 WG A3.23 – Guidelines and selection of FCL............................................... 6 8.7 WG A3.24 – Simulating internal arcs and current withstand testing ................. 6 8.8 WG A3.25 – MO varistors and surge arresters for emerging system conditions 6 8.9 WG A3.26 – Capacitor bank switching and impact on equipment .................... 6 8.10 WG A3.27 – The impact of the application of vacuum switchgear at transmission voltages ...................................................................................................... 6 8.11 New: WG A3.28 – Switching phenomena and testing requirements for UHV & EHV equipment .............................................................................................. 7 8.12 Shortly approved WGs........................................................................................ 7 WG publications ............................................................................................................. 7

9 Report of Advisory Groups.............................................................................7 9.1 AG A3.01 - Strategic Planning ........................................................................... 7 9.2 AG A3.04 - Tutorials .......................................................................................... 7

10 Information upon other Groups/Organizations ...............................................8 10.1 SC B3 activities................................................................................................... 8 10.2 IEC SC 17A ........................................................................................................ 8 10.3 CIRED................................................................................................................. 8 10.4 Current Zero Club ............................................................................................... 8

11 New work items .............................................................................................8 12 Future Events ................................................................................................9

12.1 SC A3 meeting 2011........................................................................................... 9 12.2 Preferential Subjects for 2012............................................................................. 9

13 Miscellaneous ..............................................................................................10 13.1 New TORs ........................................................................................................ 10 13.2 Body of knowledge........................................................................................... 10 13.3 Chinese UHV activities..................................................................................... 10

Annexes..............................................................................................................10 Presentations of the meeting in separate files ....................................................11

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Minutes of SC A3 Meeting, August 25, 2010, Paris

1 Welcome

The Chairman Mark Waldron welcomed all Members, Conveners, Representatives and Guests to the meeting of CIGRE Study Committee A3 in Paris. For the participations and apologies see the list of participants.

2 Approval of agenda

The Draft Agenda was approved without changes.

3 Approval of minutes of last meeting of SC A3, 200 9

The minutes of the last SC meeting 2009 in Cape Town were approved without any changes.

4 Membership

The membership of the SC has changed for the period 2010-2012. The complete list of members, conveners and representatives is attached in the Annex. A membership list with all contact data will be placed in the SC A3 web page/members area. Each new participant introduced himself. The Chairman emphasized the responsibility of each SC member to represent his country in an active way and wished the new members a good start to be involved in the SC activities. Membership in the WGs is highly welcomed, not only for the SC members but also for other experts from the countries. For interest in this the Conveners can be contacted directly.

5 CIGRE Technical Committee Report

Some important issues which have been discussed on the last TC meeting were reported by the Chairman: o Due to the fact that more and more contributions come in for publication and for the

session, a system change is under discussion. A key proposal is that the Chairmen will get more power to reject national papers which are up to now selected by the NCs.

o The CO informed that the financial situation of Cigre is very well at the moment, so that CO is able to assist NCs for technical events.

o The Secretary General Jean Kowal will retire this year. His successor will be François MESLIER

o The borders between SC A3 und B3 have been discussed and will be clarified by the Chairmen of these committees.

Concerning the SC A3 group discussion, Schmitt stated that 66 contributions had been too much again and asked for possibilities to change the procedure for the session. The chairman will discuss the matter in the next TC meeting and indicated that generally there is the possibility for poster sessions.

6 Strategic plan, action plan

The Cigre Strategic Plan has been finalized and will be placed in the A3 web site.

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The Strategic Plan of SC A3 has to be revised until April 2010. The content should be shorter and sharper. The responsibility for the SP had been taken over by Franz Heil. All members are asked to have a look on our Strategic Plan and send the comments to Heil.

7 SC A3 web page – news, comments

The Secretary explained shortly access to the members´ area. The next update will be done with the results and minutes of this meeting. It was stated from the floor that the WG sites were very limited in size and hard to handle; these sites are useless was stated from some WGs.

8 Report of Working Groups

The reports of the WGs were presented on the base of the WG Activity Reports, distributed before the meeting (see Annex List of SC A3 documents).. All new WG members presented during the meeting have been approved by the SC. It shall be assured that the NCs are informed about the memberships. The list of WGs and of WG-members are attached in the annex. For the presentations of SC A3 meeting see the files distributed in parallel to the minutes.

8.1 WG A3.06 - Reliability of HV equipment

Sölver presented his Activity Report (see presentations). The data base is in a very final stage and the analysis is starting within task forces which are focused on specific equipment. A draft report on the first results is planned for the end of 2010 to be circulated within SC A3. Furthermore the time is ready not only for publication but also for tutorials. Because of his retirement before the end of the WG-activities, Sölver suggested to hand over his convenership to Magne Runde, Norway. No objections came from the Chairman and the floor. It was commented as a good choice.

8.2 WG A3.15 - NCIT

A Draft TB has been send in to the chairman for approval. He is working on the final editorial matters in the text. Tantin announced to finalize the draft for the Electra summary within September 2010. It was stated that an Electra article is necessary for any publication and without any output a disbanding of the WG is not possible!

8.3 WG A3.17 – Surge Arrester

Richter reported that the draft TB and Electra paper will be finalized within the next weeks and ready for distribution within the SC in September. The Chairman stated that all should be ready for handover to CO at least in December. This WG also cannot be disbanded without any output.

All

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8.4 WG A3.21 – Non-ceramic insulators

Martini reported on behalf of De Nigris that the WG is effectively closed. The revised TB and an Electra article has been send to the Chairman. He has still to clarify some questions with De Nigris and than the publications will be send to CO within the next weeks.

8.5 WG A3.22 – UHV-Equipment

The draft of the second TB including Electra article were already revised and send to the Chairman for approval. They will be handed over to CO soon.

8.6 WG A3.23 – Guidelines and selection of FCL

Schmitt presented his activity report. The work of the WG is on a good way and publications are planned for the next year. The close relationship with IEEE was noted. A member of the WG is Convener of an IEEE WG, preparing a guide with the topic “How to test FCL”. The number of the IEEE draft is PC37.302 (when approved it will be C37.302). New fields of activities will be shown next year.

8.7 WG A3.24 – Simulating internal arcs and current withstand testing

Smeets explained the change of Convenership from Kriegel to Nenad Uzelac. This was supported by a lot of positive feedback by email before the meeting so that it was stated that there are no objections. The work of the WG is on a good way.

8.8 WG A3.25 – MO varistors and surge arresters for emerging system conditions

Richter presented his activity report. The work of the WG is on a good way. Maheshrawi mentioned that the issue “Ageing of SA” will be interesting for his new WG and information exchange will be helpful.

8.9 WG A3.26 – Capacitor bank switching and impact on equipment

Due to a business trip Bosma apologized shortly before the meeting not to come. The Chairman informed that the scope was modified slightly to include series reactors and now the WG activities are on a good way.

8.10 WG A3.27 – The impact of the application of va cuum switchgear at transmission voltages

Smeets presented his activity report and explained some changes in membership. Inoue has moved from Japan to China and wants to be nominated now by the NC of China. Dr. Fan, SC member from China, agreed to this procedure. The work of the WG is on a good way.

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8.11 New: WG A3.28 – Switching phenomena and testin g requirements for UHV & EHV equipment

Convener Ito presented his list of members for this new WG. The kick-off meeting was held the day after the SC meeting.

8.12 Shortly approved WGs

Two new groups have been approved recently by the TC: WG A3.29 Detoriation of ageing substation equipmen t and possible mitigation

techniques , Convener Ankur Maheshwari, Australia

WG A3.30 Impact of overstressing of substation equ ipment ,

Convener Antonio Carvalho, Brazil The call for experts for both groups is still running. The SC members were invited to join the groups or to look for interested experts in their country. For any interests contact the Conveners.

WG publications

Concerning publications of the WGs, the TC have suggested that each SC should have a communication officer, who can take a lead role in ensuring that SC publications are of the required standard. Aspects such as clarity of communication, editorial standards and, maybe, layout should be addressed. Since nobody wanted to take over this task the chairman and Secretary will keep this item in mind. It was emphasized that WG Convenors have the responsibility to ensure that their output is of a publishable standard and that all SC Members have an important responsibility to read and comment upon drafts which are circulated. This is a key aspects of SC membership. A comment from the floor was that the rules for e.g. TBs are not really clear and sufficient. The Chairman agreed to try and identify examples of “good” technical brochures that could be used as reference.

9 Report of Advisory Groups

9.1 AG A3.01 - Strategic Planning

For the new members the Chairman explained in short the tasks of AG A3.01 which meets once a year in between the SC meetings. The WG-Convenors and some ex-members are active in this group.

9.2 AG A3.04 - Tutorials

Peelo reported that about two tutorials per year have been organized. Popular topics of high interest are : Surge Arresters, Reliability and UHV-matters. For the future, tutorials will be offered in combination with the CIRED-Conference in Frankfurt, Germany (June 2011) and the Cigre-Symposium in Bologna, Spain (September 2011).

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10 Information upon other Groups/Organizations

10.1 SC B3 activities

Kopejtkova reported upon the structure and news from SC B3 (see presentation). Special attention should be paid on possible overlap between A3 and B3 and in some topics a close cooperation is necessary.

10.2 IEC SC 17A

Dufournet presented the activities and stage of revised and new standards in IEC 17A, related to the work of SC A3, mainly A3.22 concerning the UHV-topics (see presentations).

10.3 CIRED

Kirchesch reported in short about the organization and field of activities of CIRED. He announced the Conference next year in Frankfurt, Germany (June 6-9).

10.4 Current Zero Club

Smeets reported upon the organization and activities of the Current Zero Club (see presentation) and noted the growing interest correlating with the increase of membership. Information exchange is given by himself and Falkingham, especially in respect to the activities of WG A3.27.

11 New work items

NCIT: A draft TOR has been written by Tantin, titled “Instrument Transformers with digital output”. The subject was taken out from the original task of WG A3.15. Farnoosh Rahmatian, active in the WG on NCIT and well known in this technical field, was proposed, and agreed, to take over the convenership. A possible overlap with B3 in this subject will be clarified in parallel to the circulation of the draft TOR within the SC. Delayed zero Amon proposed a new work on short-circuit currents with delayed zero, titled “Requirements for Interruption of Short-Circuit Currents with Delayed Zeros”. It was discussed whether this subject is within the scope of SC A3 or better in the network modeling area. Because the outcome will be directly related to circuit-breakers and therefore of high interest for the equipment side the Chairman decided that Amon and Janssen should prepare a draft TOR. DC-Equipment Question came up whether it is the right time to start work on DC equipment. Interest is there already for DC circuit-breaker and the measurement of DC current and voltage will be also a topic.

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DC related questions are generally treated in SC B4. It was decided to postpone this subject, wait for a formal question, collect information and discuss it at the next meeting again. The Chairman will discuss the topic directly with the Chairman of SCB4. Transformer limited fault There is not enough information today, more should come from SC A2. Within A3.28 it can be clarified what A2 is doing in that direction. Exploding current transformers Some recent events have raised the question whether this is a topic for future work. The information concerning explosions vary from weekly to never however diagnostic techniques such as gas in oil analysis are available. WG A3.06 has no indication of increasing failure rates. The subject will be put into the backlog. Further ideas for new works o Voltage above rated voltage (will be covered in A3.30) o Network-topologies with the keywords: TRV, radial or meshed, cable and lines ,

transients in networks, o VFT in respect of transformers, calculation and measurement o VFTO from AIS disconnectors (rare occurrence) SC D1 information on nanocomposite materials Professor Tanaka from SC D1 presented information upon application of nanocomposite materials with reference to a new SC D1 Technical brochure (on the way to publication).

12 Future Events

12.1 SC A3 meeting 2011

The Chairman thanked very much for the invitations concerning the meeting in 2012 which came in upon his request. Due to the fact that it was desirable to hold the meeting in Europe, and that the Austrian NC wished to promote greater engagement with CIGRE, the invitation from Austria has been chosen (No objections from the floor). Widl explained that the Austrian NC is very interested in international activities and would be glad to host a SC A3 meeting and a tutorial. From the floor the question concerning a colloquium came up and it was decided to hold a colloquium of minimum half a day. A team for the organization was nominated: Widl, Maheshrawi, Janssen, Fernandez, Peelo and Brain Cheung ( a UK NGN member) As preliminary date for the event September 07-09, 2011 was fixed.

12.2 Preferential Subjects for 2012

Out of a brainstorming the following preliminary Preferential Subjects have been formulated:

• Equipment design to facilitate network developments – Design & testing of equipment for HVDC

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– Role of intelligence within equipment – UHV – Impact of changes in AC network design & operation

• Reliability & lifetime of HV equipment – Experience & trends in reliability of HV equipment – Prediction & management of end of life due to age and/or potential

overstressing – Role of condition monitoring & condition assessment

• Environmental suitability of high voltage equipment – Designs to minimise environmental impact – Design & testing for extreme of ambient conditions (temperature, seismic

levels, pollution . . .) – Design for offshore/marine environments

13 Miscellaneous

13.1 New TORs

For information: All TORs of new WG´s are sent by CO Paris to the NCs. The distribution within the countries is in the responsibility of the NCs.

13.2 Body of knowledge

Maheshwari presented the idea of preparing a knowledge base concerning the topics related to SC A3 by listing of publications (Technical Brochures, Electra-papers, other papers under our scope). The beginning of the list is included in the presentation of the idea (see presentations). Additions to the listing are expected from the SC members. Aim of the knowledge base is to find topics and titles in the list from the SC A3 web site and order them from the Cigre book-store.

13.3 Chinese UHV activities

Fan, as the new Chinese member in the SC presented information concerning the Chinese UHV power grid and activities concerning a UHVDC GIL development (see presentations).

Annexes

Annex A SC A3 Members, Conveners, Representatives and Experts Annex B List of SC A3 documents Annex C List of Working Bodies Annex D Lists of WG-Members

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Presentations of the meeting in separate files

For the presentations of the SC A3 meeting see the separate files which include the following: 07_A3-web-page-2010.pdf 08-1_Activity Report_WG-A306_2010.pdf 08-2_Activity Report_WG-A315_2010_PT.pdf 08-3_Activity Report_WG-A317_2010.pdf 08-5_Activity Report_WG-A322_2010.pdf 08-6_Activity Report_WG-A323_2010 (2).pdf 08-7_Activity Report_WG-A324_2010.pdf 08-8_Activity Report_WG-A325_2010.pdf 08-9_Activity Report_WG-A326_2010.pdf 08-10_Activity Report_WG-A327_2010.pdf 08-11_Activity Report_WG-A328_2010 (A).pdf 09-2_A3_tutorial_listing_2009-09-28.pdf 10-1_SCB3 for SCA3 2009-10 final 3.pdf 10-2_Information IEC SC17A_Dufournet 2010-08.pdf 10-4_Activity Report_CZC_2010.pdf 11_2010-06-09 Draft of TOR WG NCIT A3.xx_vFR_PT.pdf 11_Draft_TOR_Delayed_Zeros.pdf 12-2_Preferential Subjects 2012__Draft-09-2010.pdf 13-2_Cigre A3 - Body of Knowledge - Introduction.pdf 13-3_Fan_Key_insulation_tecnology_for_UHVDC_gas_insulated

metal_enclosed_transmission09-10.pdf 13-3_Fan_SC A3 introduction to Chinese power grid-0910.pdf

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Annex A

14.09.2010 SC A3 Members, Conveners, Representatives and Experts SC A3 MemberAhmethodzic Almir Bosnia-Herzegovina The World BankFalkingham Leslie United Kingdom Vacuum Interrupters LimitedFan Jianbin China State Grid Corporation of ChinaFernandez Paulo Cesar Brazil EletrobrasGauthier Laurent France Siemens T&DGlinkowski Mietek United States ABB INC.Heil Franz Switzerland ABB Schweiz AGIto Hiroki Japan Mitsubishi Electric CorporationJohnnerfelt Bengt Sweden ABB AB / High Voltage CablesKim Jung Bae Korea HYOSUNG CorporationKunt Jiri Czech CEPS a.s.Lopez-Cormenzana Manuel Spain RED ELECTRICA DE ESPANIAMaheshwari Ankur Australia Western Power Martins Jorge Filipe Portugal REN - Rede Eléctrica Nacional SAMercure Hubert Canada IREQ / Hydro QuebecMisra Narendra Nath India NTPC Ltd.Nicolini Roberto Italy CESI SpANkosi Sphiwe South Africa EskomOhnstad Trond Magne Norway Statnett SFSamek Slawomir Poland Energoprojekt-Krakow SASchmitt Heino Germany Siemens AGSmeets René P.P. The Netherlands KEMA T&D Testing ServicesStathopoulos Ioannis A. Greece National Technical University NTUATwomey Colm Ireland ESB International

SC A3 ObserverAzcarraga Carlos Mexico Inst. Investigaciones Elect. (IIE)Baran Ileana Romania University Politehnica of BucharestChareonsrikasem Somchai Thailand Electricity Generating Authority of Thailand (EGAT)Coa Raidel Venezuela EDELCA-Electricacion del CaroniESKENAZY Lilian Israel Israel Electric Corp. (IEC)Gonzalez Sardi Blas Nelson Argentina EDENOR SAHeggi Nahed Ahmed Egypt Electricity Holding Company, (EEHC)Ivanov Valery P. Russia VEIMohammed A. Al-Muaili Saudi Arabia Saudi Electricity Co.MOULOUA Ouafa AlgeriaSteensels Marc Belgium ELIA ENGINEERINGVizintin Stane Slovenia Elektroinstitut Milan VidmarWidl Wolfgang E. Austria ZELISKO GmbH

WG A3 Convener/Repr/ExpertsBosma Anne Sweden ABB AB, High Voltage ProductsCarvalho Antonio Brazil CEPELDe Nigris Michele Italy ERSE SpA, Department Technology for T&DDufournet Denis France AREVA T&DGiboulet André France ConsultantIto Hiroki Japan Mitsubishi Electric CorporationJanssen Anton The Netherlands LianderKirchesch Peter Deutschland Alstom GridKopejtkova Dagmar Czech Republic Czech National Grid CompanyMaheshwari Ankur Australia Western Power Peelo David Canada DF Peelo & Associates Ltd.Richter Bernhard Switzerland ABB Switzerland, Surge ArresterRunde Magne Norway SINTEF Energy ResearchSchmitt Heino Germany Siemens AGSmeets René P.P. The Netherlands KEMA T&D Testing ServicesSölver Carl-Ejnar Sweden ABB Power ProductsTantin Pascal France RTE/CNER-DPUzelac Nenad USA G&W Electric

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Annex B 14.09.2010

CIGRE SC A3 – List of documents since last SC meeti ng A3-10 (SC) 12 IWD A3-10 (SC) 04 IWD A3-10 (SC) 05 IWD A3-10 (SC) 06 IWD A3-10 (SC) 07 IWD A3-10 (SC) 08 IWD A3-10 (SC) 09 IWD A3-10 (SC) 10 IWD A3-10 (SC) 11 IWD

Activity Report WG A3.24 Activity Report WG A3.06 Activity Report WG A3.17 Activity Report WG A3.22 Activity Report WG A3.23 Activity Report WG A3.25 Activity Report WG A3.26 Activity Report WG A3.28 Activity Report WG A3.27

A3-10 (SC) 03 IWD Proposal WG-ToR “Ageing”

A3-10 (SC) 02 IWD Proposal WG-ToR “Overstressing”

A3-10 (SC) 01c IWD Draft-Second Technical Brochure of WG A3.22 “Background of technical specifications for substation equipment exceeding 800 kV” Part 3

A3-10 (SC) 01b IWD Draft-Second Technical Brochure of WG A3.22 “Background of technical specifications for substation equipment exceeding 800 kV” Part 2

A3-10 (SC) 01a IWD Draft-Second Technical Brochure of WG A3.22 “Background of technical specifications for substation equipment exceeding 800 kV” Part 1

A3-09 (SC) 18 IWD SC A3 Presentations of Meeting

August 21, 2009, Cape Town

A3-09 (SC) 17 IWD SC A3 Minutes of Meeting August 21, 2009, Cape Town

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Annex C 14.09.2010

Working Bodies SC A3: High Voltage Equipment August 28, 2010

Type Number Title Name of Convener Created Disbanded

AG A3.01 Strategic Planning M. Waldron (GB) 2002 AG A3.02/03 IEC/IEEE Coordination not active 2002 AG A3.04 Tutorials D. Peelo (CA) 2001 WG A3.06 Reliability of High Voltage Equipment C. Sölver (SE) 2002 2008 WG A3.15 Non Conventional Instrument Transformers P. Tantin (FR) 2004 2007 WG A3.17 Surge Arrester B. Richter (CH) 2003 2007 WG A3.21 Application of HV apparatus with composite insulators M. De Nigris (IT) 2006 2009 WG A3.22 Tech. Requirements for Substation Equipment > 800 kV Hiroli Ito (JP) 2007 2009 WG A3.23 Guidelines and selection of Fault-Current-Limiters H. Schmitt (DE) 2008 2011 WG A3.24 Simulating internal arc and current withstand testing M. Kriegel (CH) 2008 2011

WG A3.25 MO varistors and surge arresters for emerging system conditions B. Richter (CH) 2009 2012

WG A3.26 Capacitor bank switching and impact on equipment A. Bosma (SE) 2009 2012

WG A3 27 The impact of the application of vacuum switchgear at transmission voltages R. Smeets (NL) 2009 2012

WG A3.28 Switching phenomena and testing requirements for UHV & EHV equipment H. Ito (JP) 2010 2013

WG A3.29 Detoriation of ageing substation equipment and possible mitigation techniques

A.Maheshwari (AUS) 2010 2014

WG A3.30 Impact of overstressing of substation equipment Antonio Carvalho (BR) 2010 2014

New Proposals

WG Instrument transformers with digital output Rahmatien

WG Requirements for interruption of short-circuit current with delayed zero tbd

WG Simulation and calculation of temperature rise

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Annex D1 14.09.2010

Working Group A3.06

Reliability of High Voltage Equipment

1 WG A3.06 Sölver Carl-Ejnar Sweden ABB Power Products2 WG A3.06 Bergmann William Canada3 WG A3.06 Carvalho Antonio Brazil BR CEPEL4 WG A3.06 Cormenzana Manuel López Spain Red Electrica5 WG A3.06 Furuta Hiroshi Japan TMT&D Corporation6 WG A3.06 Grieshaber Wolfgang France Areva7 WG A3.06 Hyrczak Antoni Poland PSE- Operator S.A.8 WG A3.06 Kopejtkova Dagmar Czech Republic Czech National Grid Company9 WG A3.06 Krone J. Netherlands HAPAM, Bunschoten

10 WG A3.06 Kudoke Mathias Switzerland ABB Switzerland Ltd.11 WG A3.06 Makareinis Dirk Germany Siemens AG12 WG A3.06 Martins Jorge Filipe Portugal REN - Rede Eléctrica Nacional SA13 WG A3.06 Mestrovic Kresimir Croatia KONCAR Institute14 WG A3.06 Ohno Ichiro Japan TEPCO15 WG A3.06 Ostlund Jan Sweden ABB Power Technologies16 WG A3.06 Park Kyong-Yop Korea KERI17 WG A3.06 Patel Jashavant India ASEA Brown Boveri Ltd.18 WG A3.06 Protze Carsten Germany Ruhrtal 19 WG A3.06 Runde Magne Norway NO SINTEF Energy Research20 WG A3.06 Schmid Joachim Switzerland CH TRENCH CH21 WG A3.06 Shigeyuki Tsukao Japan TEPCO22 WG A3.06 Skog John USA Maintenance and Test Engineering Co23 WG A3.06 Sweeney Bob United Kingdom NIE Powerteam24 WG A3.06 Waite Francis United Kingdom NGC

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Annex D2 14.09.2010

Working Group A3.15

Non Conventional Instrument Transformers (NCIT´s)

1 WG A3.15 Tantin Pascal France RTE/CNER-DP2 WG A3.15 Chatrefou Denis France Areva3 WG A3.15 Chojnowski Przemyslaw Poland OLMEX Company4 WG A3.15 Fonseca de Carvalho Carlos Brazil FURNAS Centrais Elétricas S. A.5 WG A3.15 Frugoni Filippo Italy Secretary IEC TC386 WG A3.15 Jung-Bae Kim Korea Hyosung Corporation7 WG A3.15 Juvik M. Sweden8 WG A3.15 Maaloe Arve Norway Statnett SF9 WG A3.15 Mahonen Pentti Finland ABB Oy10 WG A3.15 Qi Zhongyi China CN Xian High Voltage Apparatus Research Institute11 WG A3.15 Rahmatian Farnoosh Canada CA NxtPhase Corporation12 WG A3.15 Saitoh Minoru Japan JP TMT&D Corporation13 WG A3.15 Schlemper Hans-Dieter Switzerland ABB-Switzerland14 WG A3.15 Tlhathetji M. South Africa15 WG A3.15 Weiss Stephan USA Schniewindt

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Annex D3

14.09.2010

Working Group A3.17

Evaluation of Stresses of Surge Arresters and appropriate Test Procedures

1 WG A3.17 Richter Bernhard Switzerland CH ABB Switzerland, Surge Arrester2 WG A3.17 De Franco Jorge Luiz Brazil Consultant3 WG A3.17 Dellallibera Adriano Brazil Industia Electromechanica Balestro Ltda4 WG A3.17 Diaz Ricardo Ruben Argentina National University of Tucuman5 WG A3.17 Fleszynski Janusz T. Poland Technical University of Wroclaw6 WG A3.17 Göhler Reinhard Germany Siemens AG7 WG A3.17 Greuter Felix Switzerland ABB 8 WG A3.17 Hinrichsen Volker Germany Technische Universität Darmstadt9 WG A3.17 Holzer Manfred Austria Epcos10 WG A3.17 Ishibe Shinji Japan Mitsubishi Electric Corporation11 WG A3.17 Ishizaki Yoshihiro Japan TM T&D Corporation12 WG A3.17 Johnnerfelt Bengt Sweden ABB AB / High Voltage Cables13 WG A3.17 Kobayashi Misao Japan Consultant14 WG A3.17 Lahti Kari Finland Tampere University of Technology15 WG A3.17 Ohnstad Trond Magne Norway Statnett SF16 WG A3.17 Peixoto Carlos Augusto de O. Brazil Consultant17 WG A3.17 Perkins Roger S. China Cooper18 WG A3.17 Sawada Jack H. Canada CA Engineering Consulting Services19 WG A3.17 Sironi Alberto Italy CESI Tests&Components BU20 WG A3.17 Tong Y K United Kingdom UK Tyco Electronics, Energy Division21 WG A3.17 Vizintin Stane Slovenia Elektroinstitut Milan Vidmar22 WG A3.17 Xemard Alain France

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Annex D4

14.09.2010 Working Group A3.21

Application of non-ceramic insulators to HV and MV apparatus

1 WG A3.21 De Nigris Michele Italy ERSE SpA, Department Technology for T&D2 WG A3.21 Creusot Christophe France AREVA3 WG A3.21 De Franco Jorge Luiz Brazil Consultant4 WG A3.21 Gillespie Tony Australia5 WG A3.21 Gorur Ravi USA Arizona State University6 WG A3.21 Gutman Igor Sweden7 WG A3.21 Hinrichsen Volker Germany Technische Universität Darmstadt8 WG A3.21 Johansson Thomas Sweden9 WG A3.21 Juhre Karsten Germany Siemens AG10 WG A3.21 Kim Jong-Hwa South Korea KEPCO (Korea Electric Power Corporation)11 WG A3.21 Lepley Damien France SEDIVER company12 WG A3.21 Lumb Clive France SEDIVER company13 WG A3.21 Maldonado Paulo Marcos Brazil FURNAS Centrais Elétricas S. A.14 WG A3.21 Matsuoka Ryosuke Japan Chubu University15 WG A3.21 Mikli Norbert Germany Tyco Electronics, Raychem GmbH16 WG A3.21 Minagawa Tadao Japan Mitsubishi Electric Corporation17 WG A3.21 Moreno Rodroguez Jose Antonio Spain18 WG A3.21 Nguyen Duc Hai Canada IREQ19 WG A3.21 Nishimura Seisuke Japan UHV Research Center, Nippon Institute of Technology20 WG A3.21 Nunes Petro Portugal EDP21 WG A3.21 Ozers Peter United Kingdom Siemens22 WG A3.21 Phillips Andrew USA23 WG A3.21 Pigini Alberto Italy24 WG A3.21 Roccetti Giulio France McLean Power25 WG A3.21 Rocks Jens Switzerland ABB Schweiz Ltd - Micafil26 WG A3.21 Sklenicka Vaclav Czeck Republik27 WG A3.21 Sokolija Kemo Bosnia28 WG A3.21 Volsoo Wallace South Africa29 WG A3.21 Windmar Dan Sweden

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Annex D5

14.09.2010 Working Group A3.22

Technical Requirements for Substation Equipment exceeding 800 kV

1 WG A3.22 Ito Hiroki Japan JP Mitsubishi Electric Corporation2 WG A3.22 Amon F. Jorge Brazil RJ FURNAS Centrais Elétricas SA3 WG A3.22 Bahng Seon-Woong Korea Korea Electric Power Corporation4 WG A3.22 Bhatnagar M.C. India Power Grid Corporation5 WG A3.22 Brunke John H. USA Consultant6 WG A3.22 Colombo Enrico Italy CESI7 WG A3.22 Diaz Ricardo Ruben Argentina National University of Tucuman8 WG A3.22 Due Wei China Xi’an High Voltage Apparatus Research Institute9 WG A3.22 Dufournet Denis France AREVA T&D

10 WG A3.22 Fernandez Paulo Cesar Brazil Eletrobras11 WG A3.22 Filion Yvon Canada Hydro Quebec TransEnergie12 WG A3.22 Giboulet André France Consultant13 WG A3.22 Jaeger Johann Germany Universität Erlangen-Nürnberg14 WG A3.22 Janssen Anton The Netherlands Liander15 WG A3.22 Kale Sunbondh India Crompton Greaves16 WG A3.22 Keri Albert USA ABB17 WG A3.22 Kobayashi Takayuki Japan Toshiba18 WG A3.22 Kosakada Masayuki Japan Toshiba Corporation19 WG A3.22 Kynast Edelhard Germany Siemens AG, Energy20 WG A3.22 Liu Zehong China State Grid Corporation of China21 WG A3.22 Lokhanin Andrey Russia Electrotechnical Research Institute22 WG A3.22 Peelo David Canada CA DF Peelo & Associates Ltd.23 WG A3.22 Rashkes Victor S. USA Consultant24 WG A3.22 Riechert Uwe Switzerland ABB Switzerland Ltd25 WG A3.22 Shaowu Wang China State Grid Corporation of China26 WG A3.22 Shperling Ben USA NewYorkPowerAuthority27 WG A3.22 Smeets René P.P. The Netherlands KEMA T&D Testing Services28 WG A3.22 Stenström Lennart Sweden ABB Sweden29 WG A3.22 Sun Gang China State Grid Corporation of China30 WG A3.22 Van der Merwe Chris South Africa Trans-African Projects/Escom Entr.31 WG A3.22 Yamagata Yoshibumi Japan Tokyo Electric Power Company32 WG A3.22 Yao Sili China Xi’an High Voltage Apparatus Research Institute33 WG A3.22 Yeckley Russ USA Mitsubishi Electric34 WG A3.22 Yesuraj John India Cromton Greaves

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Annex D6

14.09.2010 Working Group A3.23

Application and feasibility of fault current limite rs in power systems

1 WG A3.23 Schmitt Heino Germany Siemens AG2 WG A3.23 Adapa Ram United States US EPRI3 WG A3.23 Amon F. Jorge Brazil RJ FURNAS Centrais Elétricas SA4 WG A3.23 Braun Dieter Switzerland ABB Switzerland Ltd.5 WG A3.23 Brisette Yves Canada Hydro Quebec6 WG A3.23 Buchs Gerald Switzerland CH Atel7 WG A3.23 Cvoric Dalibor Netherlands8 WG A3.23 Darmann Frank Australia AU Zenergy Power Pty Ltd9 WG A3.23 Edwards Ken Canada CA BPA

10 WG A3.23 Fernandez Paulo Cesar Brazil Eletrobras11 WG A3.23 Folts Douglas United States US AMSC12 WG A3.23 Hartung K.H. Germany ABB Calor Emag Mittelspannung GmbH13 WG A3.23 Hyun Ok-Bae Korea KR KEPCO14 WG A3.23 Ioka Daisuke Japan JP Nagoya University15 WG A3.23 Jaeger Johann Germany Universität Erlangen-Nürnberg16 WG A3.23 Kameda Hideyuki Japan JP CRIEPI17 WG A3.23 Kim Young-Gaun Korea Electrotechnology R&D Center18 WG A3.23 Kleimaier Martin Germany DE Nexans19 WG A3.23 Lambert Frank United States US NEETRAC20 WG A3.23 Martini Luciano Italy Cesi Ricerca21 WG A3.23 Noe Mathias Germany Forschungszentrum Karlsruhe22 WG A3.23 Park Kwon-Bae Korea KR Electrotechnology R&D23 WG A3.23 Rasolonjanahary Jean-Luis United Kingdom UK Areva24 WG A3.23 Steurer Michael United States FL CAPS25 WG A3.23 vander Burgt Jos Netherlands NL Kema

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Annex D7

14.09.2010 Working Group A3.24

Tools for Simulating Internal Arc

1 WG A3.24 Uzelac Nenad USA G&W Electric2 WG A3.24 Douchin Jerome France FR Schneider Electric3 WG A3.24 Dullni Edgar Germany ABB Ratingen4 WG A3.24 Feitoza Costa Brazil Cognitor5 WG A3.24 Fjeld Elin Norway Telemark University6 WG A3.24 Glinkowski Mietek United States US ABB INC.7 WG A3.24 Kim Hong-Kyu Korea KERI8 WG A3.24 Kweon Ki Yeoung Korea Hyosung Corporation9 WG A3.24 Lopez-Roldan Jose Australia Powerlink

10 WG A3.24 Pater Ryszard Canada Hydro Quebec11 WG A3.24 Pietsch Gerhard Germany RWTH Aachen12 WG A3.24 Reiher Thomas Germany DE Siemens13 WG A3.24 Robin-Jouan Philippe France Areva14 WG A3.24 Smeets René P.P. The Netherlands KEMA T&D Testing Services15 WG A3.24 Uchii Toshiyuki Japan JP TMT&D Corporation16 WG A3.24 Van der Sluis L. The Netherlands TU Delft17 WG A3.24 Vinson Paul France AREVA T&D18 WG A3.24 Yoshida Daisuke Japan JP MitsubishiElectric

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Annex D8

14.09.2010 Working Group A3.25

Metal Oxide varistors and surge arresters for emerging system conditions

1 WG A3.25 Richter Bernhard Switzerland ABB Switzerland, Surge Arrester2 WG A3.25 Comber Mike USA OH Hubbell Power Systems3 WG A3.25 De Franco Jorge Luiz Brazil Consultant4 WG A3.25 Dellallibera Adriano Brazil Industia Electromechanica Balestro Ltda5 WG A3.25 Fan LI China China National Center for Qality Supervision and Test of Insulators and Surge Arresters6 WG A3.25 Ganzela Renato Brazil Industria Electromecanica Balestro Ltda.7 WG A3.25 Göhler Reinhard Germany Siemens AG8 WG A3.25 Greuter Felix Switzerland ABB 9 WG A3.25 Haddad Manu United Kingdom UK University of Cardiff

10 WG A3.25 Hinrichsen Volker Germany Technische Universität Darmstadt11 WG A3.25 Holzer Manfred Austria Epcos12 WG A3.25 Ishibe Shinji Japan Mitsubishi Electric Corporation13 WG A3.25 Ishizaki Yoshihiro Japan TM T&D Corporation14 WG A3.25 Johnnerfelt Bengt Sweden ABB AB / High Voltage Cables15 WG A3.25 Keri Albert USA ABB16 WG A3.25 Kester Jeff USA Cooper Industries17 WG A3.25 Kobayashi Misao Japan Consultant18 WG A3.25 Nakajima Masatoshi Japan Japan AE power systewm corporation19 WG A3.25 Ohnstad Trond Magne Norway Statnett SF20 WG A3.25 Osterlund Ragnar Sweden ABB21 WG A3.25 Tuczek Max Germany Technical University Darmstadt22 WG A3.25 Woodworth Jonathan USA Consulting Engineer Arrester Works

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Annex D9

14.09.2010 Working Group A3.26

Influence of shunt capacitor banks on circuit breaker fault interruption duties

1 WG A3.26 Bosma Anne Sweden ABB AB, High Voltage Products2 WG A3.26 Alexander Roy W. United States US PPL Electric Utilities3 WG A3.26 Azevedo Serio de Brazil BR Furnas ?4 WG A3.26 Canhôto António Portugal REN – Rede Eléctrica Nacional5 WG A3.26 Collette Luke USA Mitsubishi USA6 WG A3.26 Creusot Christophe France AREVA7 WG A3.26 Filion Yvon Canada Hydro Quebec TransEnergie8 WG A3.26 Gangadharan A.P. India PGCIL9 WG A3.26 Huang Shi China XIHARI

10 WG A3.26 Kalyuzhny Aaron Israel Transmission and Substation Department Haifa11 WG A3.26 Kristiansen Kjetil Norway Stattnet12 WG A3.26 Mantilla Javier Switzerland CH ABB13 WG A3.26 McVey Mark USA Dominion Virginia Power14 WG A3.26 Morais Sergio Brazil Consultant15 WG A3.26 Nelson Jeff TVA, Tennessee16 WG A3.26 Richter Frank Germany Energy17 WG A3.26 Rörvall Hakan Sweden SE ABB18 WG A3.26 Sunga Bruce R. Canada CA BC Hydro19 WG A3.26 Wartier Caroline France RTE20 WG A3.26 Yoshida Daisuke Japan JP MitsubishiElectric

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Annex D10 14.09.2010

Working Group A3.27

The impact of the application of vacuum switchgear at transmission voltages

1 WG A3.27 Smeets René P.P. The Netherlands KEMA T&D Testing Services2 WG A3.27 Backman Magnus Sweden ABB Corporate research3 WG A3.27 Betz Thomas Germany TU Darmstadt4 WG A3.27 Bufi Ben USA HVB5 WG A3.27 Cotton Ian UK University Manchester6 WG A3.27 Doche. Rene Canada Hydro-Québec TransÉnergie7 WG A3.27 Drews Lutz Germany Areva8 WG A3.27 Eiselt Martin Germany Energy9 WG A3.27 Falkingham Leslie United Kingdom Vacuum Interrupters Limited

10 WG A3.27 Glinkowski Mietek United States US ABB INC.11 WG A3.27 Hambarde Suni P. India NTPC Limited12 WG A3.27 Hinrichsen Volker Germany Technische Universität Darmstadt13 WG A3.27 Ito Hiroki Japan JP Mitsubishi Electric Corporation14 WG A3.27 Johnson Dave USA Consultat15 WG A3.27 Kagawa Kazuhiko China XMS16 WG A3.27 Kim Young-Gaun Korea Electrotechnology R&D Center17 WG A3.27 Liu Zhiyuan China CN Xian Jiaotong University18 WG A3.27 Maheshwari Ankur Australia Western Power 19 WG A3.27 Meyer Peter USA S&C20 WG A3.27 Morais Sergio Brazil Consultant21 WG A3.27 Inoue Naoaki Japan Mitsubishi22 WG A3.27 Ryu Jae-Seop Korea LS Industrial Systems23 WG A3.27 Saito Hitoshi Japan AEP Power Systems24 WG A3.27 Sasage Kosuke Japan Toshiba25 WG A3.27 Shoval Shmuel Israel26 WG A3.27 Smith Kirk USA Eaton27 WG A3.27 Yanabu Satoru Japan Tokyo Denki University28 WG A3.27 Yuo Yimin China Xihari Research Institute

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Annex D11 14.09.2010

Working Group A3.28

Switching phenomena and testing requirements for UHV & EHV equipment

1 WG A3.28 Ito Hiroki Japan JP Mitsubishi Electric Corporation2 WG A3.28 Amon F. Jorge Brazil RJ FURNAS Centrais Elétricas SA3 WG A3.28 Aoki Kojiro Japan JP Tokyo Electric Power Company4 WG A3.28 Bahng Seon-Woong Korea KR Korea Electric Power Corporation5 WG A3.28 Bhatnagar M.C. India IND Power Grid Corporation6 WG A3.28 Bhowmick B N De India IND Powergrid7 WG A3.28 Brunke John H. United States US Consultant8 WG A3.28 Diaz Ricardo Ruben Argentina National University of Tucuman9 WG A3.28 Due Wei China Xi’an High Voltage Apparatus Research Institute

10 WG A3.28 Dufournet Denis France AREVA T&D11 WG A3.28 Fan Jianbin China CN State Grid Corporation of China12 WG A3.28 Fernandez Paulo Cesar Brazil Eletrobras13 WG A3.28 Giboulet André France Consultant14 WG A3.28 Jaeger Johann Germany Universität Erlangen-Nürnberg15 WG A3.28 Janssen Anton The Netherlands Liander16 WG A3.28 Kale Sunbondh India IND Crompton Greaves17 WG A3.28 Kalky Purshottam India IND Areva T&D System India18 WG A3.28 Keri Albert United States US ABB19 WG A3.28 Kim Jung Bae Korea KR HYOSUNG Corporation20 WG A3.28 Kosakada Masayuki Japan JA Toshiba Corporation21 WG A3.28 Kynast Edelhard Germany Siemens AG, Energy22 WG A3.28 Lokhanin Andrey Russia RU Electrotechnical Research Institute23 WG A3.28 Park Sang-Hun Korea KR KERI24 WG A3.28 Peelo David Canada CA DF Peelo & Associates Ltd.25 WG A3.28 Poirier Sebastien Canada CA Hydro Quebec Research Institute26 WG A3.28 Rashkes Victor S. United States US Consultant27 WG A3.28 Richter Bernhard Switzerland CH ABB Switzerland, Surge Arrester28 WG A3.28 Riechert Uwe Switzerland ABB Switzerland Ltd29 WG A3.28 Rocha Angélica Brazil30 WG A3.28 Shperling Ben United States US NewYorkPowerAuthority31 WG A3.28 Smeets René P.P. The Netherlands NL KEMA T&D Testing Services32 WG A3.28 Van der Merwe Chris South Africa ZA Trans-African Projects/Escom Entr.33 WG A3.28 Waldron Mark United Kingdom UK National Grid 34 WG A3.28 Wang Chengyu China CN China Electric Power Research Institute35 WG A3.28 Wang Xiaogang China CN State Grid Corporation of China36 WG A3.28 Xiang Zutao China CN China Electric Power Research Institute37 WG A3.28 Yamagata Yoshibumi Japan JP Tokyo Electric Power Company38 WG A3.28 Yao Sili China Xi’an High Voltage Apparatus Research Institute39 WG A3.28 Yesuraj John India IND Cromton Greaves

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Annex D12 14.09.2010

Working Group A3.29

Detoriation of ageing substation equipment and possible mitigation techniques

1 WG A3.29 Maheshwari Ankur Australia Western Power 2 WG A3.29 Chaudhary Arvind K. S. United States Center for Intelligent Power3 WG A3.29 Kopejtkova Dagmar Czech Republic Czech National Grid Company4 WG A3.29 Lindquist Tommie Sweden Svenska Kraftnät5 WG A3.29 Makareinis Dirk Germany Siemens AG6 WG A3.29 O`Sullivan Liam Ireland IR ESB International7 WG A3.29 Rusek Bartosz Germany DE Amprion8 WG A3.29 Stagi William R. United Stated US9 WG A3.29 Wilson Harley Ubited States US Mitsubishi Electric Power Products, Inc.

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Annex D13 14.09.2010

Working Group A3.30

Impact of overstressing of substation equipment

1 WG A3.30 Carvalho Antonio Brazil BR CEPEL2 WG A3.30 Coa Raidel Venezuela VEN EDELCA-Electricacion del Caroni3456789

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