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Fabio GIAMMANCO

A low - cost high performance MV RMU with circuit breakers for use in remote controlled MV / LV substations. Luca GIANSANTE. Fabio GIAMMANCO. Italian AEEG regulation scenario Main strategies Limits of current switchgear Overcome apparatus limits New approach State of the Art: DY900

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Fabio GIAMMANCO

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  1. A low - cost high performance MV RMU with circuit breakers for use in remote controlled MV / LV substations Luca GIANSANTE Fabio GIAMMANCO

  2. Italian AEEG regulation scenario Main strategies Limits of current switchgear Overcome apparatus limits New approach State of the Art: DY900 Results Developments Main content Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  3. Italian AEEG regulation scenario Italian Authority for Electrical Energy and Gas (AEEG) > 3 minutes • Planned • Accidental with fault localization • Accidental without fault localization CUMULATIVE DURATION OF LONG LASTING SUPPLY INTERRUPTION PER LV CUSTOMER Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  4. Italian AEEG regulation scenario • FRAME REGULATION • DURATION OF LV CUSTOMER SUPPLY INTERRUPTIONS WITHOUT NOTICE • NUMBER OF SUPPLY INTERRUPTIONS WITHOUT NOTICE PER LV CUSTOMER • INDIVIDUAL REGULATION • NUMBER OF CUSTOMER SUPPLY INTERRUPTIONS (FOR MV CUSTOMERS ONLY) • LONG LASTING INTERRUPTIONS (LV AND MV CUSTOMERS) Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  5. Italian AEEG regulation scenario • FOCUS • DURATION OF LV CUSTOMER SUPPLY INTERRUPTIONS • NUMBER OF SUPPLY INTERRUPTIONS WITHOUT NOTICE PER LV CUSTOMER Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  6. Main strategies • REDUCE THE TIME NECESSARY TO FIND AND ISOLATE THE FAULT KEEPING IT AS SHORT AS THE 3 MIN DEADLINE • MINIMIZE THE NUMBER OF CUSTOMERS AFFECTED BY THE FAULT Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  7. Limits of current switchgear • SWITCH DISCONNECTORS MAIN LIMITS • OPERATION TIME • MAKING AND BREAKING CAPABILITY • ELECTRICAL AND MECHANICAL ENDURANCE Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  8. Overcome apparatus limits THE GOAL TO OVERCOME THE SWITCH DISCONNECTOR LIMITS WHILST FINDING A GOOD TRADE-OFF BETWEEN THE NEED FOR THE EXPECTED PERFORMANCE AND LIFETIME COSTS Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  9. CIRED WIEN 2007 CIRED PRAGUE 2009 Overcome apparatus limits Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  10. Overcome apparatus limits With ICS DY800 Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  11. New approach Compact RMU with circuit-breaker per each line with disconnector and grounding switch Configuration: 2LineCB + 1PT Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  12. State of the art: DY900 High perfomance Highly reliable in polluted networks Underwater immersion resistant Compatible with remote control smart units Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  13. DY900 is fast, accurate, reliable and easy to adapt into existing systems. 10% - 15% reduction of the cumulative duration of long lasting supply interruption per LV customer. 40% reduction of the number of interruptions per customer. Results Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  14. High level of performance and economy Adoption of SF6 insulated solutions Results Reliability and operational safety Environmental issue Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  15. Two additional configurations: 3LineCB + 1PT and 3LineCB. Device for MV customer connection SF6 insulated with current and voltage transformer inside. Next developments Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  16. Next developments Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

  17. THANKS FOR YOUR ATTENTION Luca GIANSANTE – ITALY – Session 3 – Paper ID0468

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