SER — Sequence of Events (SOE) Recording

What is SER?

SER — SEQUENCE OF EVENTS (SOE) RECORDING

Sequence of events record­ing (SER) is per­formed by micro­proces­sor based sys­tems, which mon­i­tor col­lect­ed data inputs and record the time and sequences of the changes.

Sequence of events recorders rely on exter­nal time sources such as GPS or radio clocks to record the exact time of state of each change.

  • Sequence of Events Record­ing (SER) allows to rapid­ly analyse the root of the analomy thanks to the secure record­ing of events in the order of occurrence.
  • It can thus be used as a diag­nos­tic tool to min­i­mize plant down­time and ana­lyze blackouts.
  • The recorders are often inte­grat­ed in or inter­faced with a SCADA sys­tems, RTUs, PLCs or con­trol centers.
  • Today, mod­ern RTUs, PLCs and IEDs can time-tag events to the near­est mil­lisec­ond, not requir­ing to incor­po­rate sep­a­rate SER devices into the SCADA systems.

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    Grid & Substation Automation

    RTU most com­mon­ly stands for Remote Ter­mi­nal Unit, but is some­times also used as an abbre­vi­a­tion for Remote Teleme­try Unit or Remote Tele­con­trol Unit.

    RTUs are devices that rely on micro­proces­sors and com­mu­ni­ca­tion inter­faces to auto­mat­i­cal­ly mon­i­tor and con­trol field devices and estab­lish a bridge to the plant con­trol or SCADA (super­vi­so­ry con­trol and data acqui­si­tion) systems.

    Super­vi­so­ry con­trol and data acqui­si­tion (SCADA) sys­tems col­lect, mon­i­tor and process real-time data to:

    • Auto­mate and con­trol indus­tri­al process­es remote­ly or locally
    • Pro­vide a human-machine inter­face (HMI) to direct­ly inter­act with devices such as relays, sen­sors, gen­er­a­tors, pumps, valves and others
    • Record events and auto­mate reporting

    An Intel­li­gent Elec­tron­ic Device (IED) is a term used in the elec­tric pow­er indus­try to describe micro­proces­sor-based con­trollers of pow­er sys­tem equip­ment, such as cir­cuit break­ers, trans­form­ers and capac­i­tor banks.

    Sequence of events record­ing (SER) is per­formed by micro­proces­sor based sys­tems, which mon­i­tor col­lect­ed data inputs and record the time and sequences of the changes.

    Sequence of events recorders rely on exter­nal time sources such as GPS or radio clocks to record the exact time of state of each change.

    SER & iGrid

    Our embed­ded sys­tems can time stamp events with a milisec­ond accu­ra­cy and use their inter­nal high accu­ra­cy Real-Time-Clock (RTC) to stay syn­chro­nized after los­ing con­nec­tion to the masterclock

    iRTU – With I/Os for Direct Data Acquisition 

    Com­pact and scal­able bay con­troller which can act as IEC 61850 client or serv­er, fea­tur­ing con­fig­urable I/O boards for direct data acqui­si­tion, high-pre­ci­sion time­stamp­ing and an option­al Eth­er­net switch for addi­tion­al Eth­er­net ports.

    iGW‑S Substation Gateway

    Pow­er­ful and reli­able sub­sta­tion gate­way, able to run either in stand­alone or redun­dant modes, with an embed­ded Eth­er­net switch (4 ports) and IEC 61850 client and serv­er capabilities.

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    Pow­er­ful sub­sta­tion automa­tion sys­tems often han­dle numer­ous com­mu­ni­ca­tion pro­to­cols and media with­in one net­work, which can result in expen­sive and com­plex projects.  Avoid these prob­lems with inter­op­er­a­ble tech­nol­o­gy and smart con­fig­u­ra­tion tools.

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