1. CNC-CIGRE Study Committee Meeting October 19, 2008 Winnipeg CIGRÉ SC – A3 High-Voltage Equipment Hubert Mercure Hydro-Québec / IREQ

2. SC – A3
Mission of the Study Committee The mission of Study Committee A3 is to facilitate and promote the progress of engineering and the international exchange of information and knowledge in the field of high voltage equipment, and to add value to this information and knowledge by means of synthesizing state-of-the-art practices and developing recommendations.

3. SC – A3
Scope
Responsible for the theory, design, construction, and application of high voltage equipment components, equipment, and equipment systems for both AC and DC systems
Equipment: all devices for switching, interrupting, or limiting currents (CB, load/ disconnect/ earthing switches, FCL, etc.) independent of technology ( also includes surge arresters, capacitors, busbar and equipment insulators, instrument transformers, bushings, and all other high voltage equipment not specifically covered under another equipment study committee’s scopes )
Emphasis is on function and interaction of high voltage equipment

4. Study Committee Membership
SC – A3
Study Committee Membership
The SC currently consists of a Chairman (Mark Waldron, UK), a Secretary (E. Kynast, GE), 24 Regular Members and 11 Observer Members.
The 24 countries represented by Regular Members
( Australia, Austria, Bosnia-Herzegovina, Brazil, Canada, China, Croatia, Czech, France, Germany, Greece, India, Italy, Japan, Korea, Norway, Poland, South Africa, Spain, Sweden, Switzerland, The Netherlands, United Kingdom and United States )
The constituents of the SC come from Utilities, Manufacturers and Universities/Institutes.

5. SC – A3 Report on 8 active Working Groups
WG A3.06 Reliability of HV equipment
(worldwide utility survey)
Membership (Convener: C.E. Sölver, SE)
25 members (1 corresponding)
Canadian member (CM): William Bergman (PowerNex)
Meetings
April/March, 31-01, 2008 Lucerne, Switzerland
October, 29-30, 2008 Seoul, Korea – Oct. 31st : 1 day tutorial
Publication: CIGRE 2008, A3-109
“Influence of age one the reliability of HV equipment”
WG plan for 2009: Electra report and TB

6. Report on Working Groups
SC – A3
Report on Working Groups
WG A3.15 Non Conventional Instrument Transformers
Membership: (Convener: P. Tantin, Fr)
Original WG: 17 members (2 corresponding)
Canadian member: Farnoosh Rahmatian (NxtPhase)
Draft Brochure (dated 1999) being revised by special task force
Publication: target for TB, 2009

7. Report on Working Groups
SC – A3
Report on Working Groups
WG A3.17 Surge Arresters (MOSA energy duty)
Membership (Convener: B. Richter, CH)
20 members (3 corresponding)
Canadian member: Jack H. Sawada (Eng. Consulting Services)
Meetings
March 2008, Switzerland
Joint C4/A3 in May 2008, Croatia
(“Lighting protection of MV & LV networks”)
August 2008, Paris
Publication: CIGRE 2008, A3-309 (research project report)
“Energy handling capacity of HV metal-oxide surge arresters”

8. Report on Working Groups
SC – A3
Report on Working Groups
WG A3.21 Application of Non-ceramic Insulators
(Polymeric insulation for MV-HV-UHV apparatus)
Membership (Convener: M. De Nigris, IT)
29 members (6 corresponding)
Canadian member: Duc Hai Nguyen (IREQ)
Meetings
May 2008, Italy
August 2008, Paris
Publication: TB final draft being circulated for editing

9. Report on Working Groups
SC – A3
Report on Working Groups
WG A3.22 UHV Equipment
(Technical requirements for equipment > 800kV)
Membership (Convener: H. Ito, JP)
34 members (9 corresponding)
Canadian member: David Peelo (D. Peelo & Associates)
Yvon Filion (Hydro-Québec TransÉnergie)
Meetings (2008)
February, Germany / April and June, China / September, Paris
Publication: CIGRE 2008, A3-211 ( recommendation to IEC TC17A )
“Technical Requirements for UHV substation equipment”
Publication: TB & Electra paper submitted

10. Report on Working Groups
SC – A3
Report on Working Groups
WG A3.23
Application & feasibility of FCL in power systems
(guidelines and selection of FCL)
Just started
Membership (Convener: H. Schmitt, DE)
30 nominated members (22 selected for approval)
Canadian member (proposed): C. Edwards ( BPA)
Meetings
Kick off in Sept. 2008, Germany/ next, yet TBD
Joint WG with D1 considered (Testing of FCL)

11. Report on Working Groups
SC – A3
Report on Working Groups
WG A3.24
Simulating internal arc & current withstand testing
(Internal arc – Temperature rise behavior)
Just starting
Membership (Convener: M. Kriegel, CH)
21 members (9 corresponding) approved
Canadian member: none
Meetings
August 2008, Paris / TBD (2009)

12. Report on Working Groups (new)
SC – A3
Report on Working Groups (new)
WG A3.XX
Influence of shunt capacitor banks on circuit breaker fault interruption duties (Proposed by Canada)
Membership (Convener: Anne Bosma, SE)
TBD
Canadian members (proposed): Yvon Filion (Hydro-Québec TransÉnergie)
TBD (BC Hydro)
Meetings
TBD (possible joint interest with B3)

13. SC – A3 Group No: A3.XX Name of Convener: Anne Bosma
Title: Influence of shunt capacitor banks on circuit breaker fault interruption duties.
Terms of reference
Background:
Shunt capacitor banks are being applied worldwide in substations in ever increasing numbers. From the perspective of line circuit breakers during fault interruption, the banks represent a large source side capacitance and also a source of outrush currents, both of which may negatively influence the fault interrupting time. These circuit breaker application aspects are not addressed in the standards and are the subject of queries frequently raised by users.
Scope:
The scope of the proposed working group is to investigate the influence of both earthed and unearthed shunt capacitor banks on line breaker fault interruption and the effect of series reactors on fault interruption with capacitor switching circuit breakers… Deliverables and time schedule:
Guidance to manufacturers and users alike on dealing with the issue of shunt capacitor bank influences on circuit breakers and recommendations for standardization to IEC SC17A/MT36 where applicable.
Time schedule: start 2008 and publish technical brochure no later than 2012.
Other SCs concerned by the work: B3
Approval by TC Chairman : Date :

14. Report on Advisory Groups
SC – A3
Report on Advisory Groups
AG A3.01 Strategic Planning (M. Waldron, UK)
AG A3.02 Tutorials (D. Peelo, CA)
David Peelo presented a list of past and planned tutorials at the 2008 Paris Session.
Peelo will continue as the convener of the Tutorial AG for a couple more years
A3 is probably the most active CIGRÉ SC when it comes to tutorials
Meeting: Planned for 31st October 2008, the WG will arrange a one-day tutorial in Seoul, in connection
with the Seoul International Electric Fair :
“Reliability of HV equipment” (survey and intermediate results)
Further tutorial planned in connection with the SCA3 meeting and Colloquium 2009 in Cape Town.

15. SC working group sponsor
SC – A3
Tutorials ( )
Title
Presenter
Time
Location date
SC working group sponsor
Use and Application of Optical Instrument Transformers
F. Rahmatian
8 hours
Joint SC A3 and IEEE PES sponsored tutorial IEEE PES T&D Chicago, April 2008
Cigre WG A3.15
Reliability of HV Equipment
C. Sölver
TBD
Seoul International Electric Fair, October 2008
Cigre WG A3.06
Cigre Reg. Conf. & Joint A3/B3 Colloquium, SA, August 2009
Application of Surge Arresters in Distribution Systems
B. Richter
CIRED 2009 Prague, June 2009
MatPost, 2009
IEEE T&D Conf. & Expo., New Orleans, 2010

16. CIGRÉ 2010 Preferential Subjects (PS) (proposed for discussion)
SC – A3
CIGRÉ 2010 Preferential Subjects (PS)
(proposed for discussion)
Development in HV equipment to cater for increasing system demands
Lifetime management of HV equipment
Prospects for commercial introduction of new technologies at high voltage
Environmental impacts of high voltage equipment (overlap possible with C3 & D1)

17. SC Next Meeting ( Colloquium 2009 )
SC – A3
SC Next Meeting ( Colloquium 2009 )
SC A3 is invited on behalf of the South African National Committee in combination with the 2009 Regional Conference, in the area of Cape Town, SA, jointly with SC B3
Preliminary date: the week of August 17 – 21, 2009 ( Tutorials, Regional Meeting, Colloquium and SC meeting )
The 2009 ISH will take place the following week (August 24-31, 2009).

18. Type [1] Title [2] Name of Convener [3] Date “on”[4] Date “off”[5]AG
A3.01
Strategic Planning
M. Waldron (GB)
2002
A3.04
Tutorials
D. Peelo (CA)
2001 WG
A3.06
Reliability of High Voltage Equipment
C. Sölver (SE)
2008
A3.15
Non Conventional Instrument Transformers
P. Tantin (FR)
2004
2007
A3.17
Surge Arresters
B. Richter (CH)
2003
A3.21
Application of non-ceramic insulators to HV and MV apparatus
M. De Negris (IT)
2006
2009
A3.22
Technical requirements for substation equipment exceeding 800kV
Hiroki Ito (JP)
A3.23
Application and feasibility of fault current limiters in power systems
H. Schmitt (DE)
2011
A3.24
Tools for Simulating Internal Arc and Current Withstand Testing
M.Kriegel (DE)
2010
[1] Type : Working Group (WG), Task Force (TF), Advisory Group (AG), Co-operation Group (CG), Joint Working Group (JWG), Joint Task Force (JTF), …
[2] Title : full title in English
[3] Name : Initials NAME (2 letters for nationality)
[4] Created : year of creation
[5] Disbanded : scheduled year of disbanding