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Activity Report 2014

WG A3.30 SUBSTATION equipment OVERSTRESS. Activity Report 2014. Convener: Antonio Carvalho - BR. Secretary: Jorge Amon - BR. Number of Members: 15 Regular Members: 11 (BR, CH, USA, NE, IN, CR, FR, SA) Corresponding Members: 4 (D, BR, JP, CA) Dismissed inactive members: 4.

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Activity Report 2014

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  1. WG A3.30SUBSTATION equipment OVERSTRESS Activity Report 2014 Convener: Antonio Carvalho - BR Secretary: Jorge Amon - BR Number of Members: 15 Regular Members: 11 (BR, CH, USA, NE, IN, CR, FR, SA) Corresponding Members: 4 (D, BR, JP, CA) Dismissed inactive members: 4 March 2014

  2. Five meeting until date: September 2011 in Vienna, March 2012 in Baden, • August 2012 in Paris, March 2013 in Rio, • September 2013 in Johannesburg. • Work divided in 6 different topics: • 1. Stressing parameters: • - Environmental, Electrical, Dielectric, Mechanical, Prioritization of stressing parameters • 2. Equipment capabilities • - Standards, Test protocols, Specification, Influence of aging (WG A3.29) • 3. Review of utilities processes to assess potential overstresses risk • 4. Measures for risk mitigation: • - What utilities do (or should do) to mitigate equipment´s overstress risks? • 5. Proposal for improvements on the overstress management process: • -gapanalysis of utilities overstress management X main stressing parameters & available information on equipment capabilities • - proposals for improvement & recommended processes • - suggestions for standards improvements • 6. Brochure annexes: • - overstress checking procedures for selected equipment and stress parameters. Activities & discussion items March 2014

  3. State of the work: • Item 1 (Stressing parameters) already concluded; • Item 2 (Equipment capabilities): • standards analysis to be finalized next meeting; • test protocols and specification analysis to be prepared for sept./2014; • Aging influence: waiting for WG A3.29 results; • Item 3 (Review of utilities processes): • Experiences so far collected: ONS, AXPO, EDF, LIANDER, BPA, VLPGO (NG, TERNA, REE, ONS & RTE)  first draft foreseen for sept./2014; • Item 4 (Measures for Risk Mitigation): • Experiences so far collected: ONS, AXPO, EDF, LIANDER, BPA, VLPGO (NG, TERNA, REE, ONS & RTE)  first draft foreseen for sept./2014; • Item 5 (Proposal for improvements): last task, conclusion foreseen for May 2015 • Item 6 (Annexes): already started for CB and CT, conclusion foreseen for March 2015 Activities & discussion items March 2014

  4. Membership March 2014

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