A low - cost high performance MV RMU with circuit breakers for use in remote controlled MV / LV subs...
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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

A low - cost high performance MV RMU with circuit breakers for use in remote controlled MV / LV substations

Luca GIANSANTE

Fabio GIAMMANCO


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

CIRED WIEN 2007 CIRED PRAGUE 2009

Overcome apparatus limits

Luca GIANSANTE – ITALY – Session 3 – Paper ID0468


Fabio giammanco

Overcome apparatus limits

With ICS DY800

Luca GIANSANTE – ITALY – Session 3 – Paper ID0468


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

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


Fabio giammanco

Next developments

Luca GIANSANTE – ITALY – Session 3 – Paper ID0468


Fabio giammanco

THANKS FOR YOUR ATTENTION

Luca GIANSANTE – ITALY – Session 3 – Paper ID0468


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