MiCOM Protection - Schneider

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Power System MeasurementA comprehensive set of measurement values includinginstantaneous and derived values are available on therelays.These measured values can be displayed on the frontLCD display or transferred locally or remotely as per theuser requirements.POST FAULT ANALYSIS> Event recordsThese are generated for status changes to logic inputsand outputs, modifications to one or more settingparameters and alarm signals.All events are time-tagged and stored in chronologicalorder in a cyclic memory where the oldest record isoverwritten once the relay's maximum event count isexceeded. These are readily available for viewing on theLCD, or extraction via the communication ports.> Fault recordsAt least 5 records are supported on all relays and forevery fault, the following information is captured in therelay records• A fault number• The date and time• The active setting group• The function that issued the trip• The magnitude of the current/voltage that gave rise tothe trip command> Disturbance recordsThe internal disturbance recorder will record the sampledvalues of all analog input variables such as phasecurrents and voltages etc. where applicable during a fault.Oscillographic analysis can be performed usingMICOM S1 which will provide the means to quicklyanalyse analog and digital signals on the same time-scalefor convenience. Disturbance records can be extractedfrom the relay via the communication ports and saved inthe COMTRADE format.Figure 4Oscillography analysis using <strong>MiCOM</strong> S1 Softwarefor Optimum resultsRELAY COMMUNICATIONSAs standard, a front communication port is available forlocal access to the relay. An auxiliary rear communicationport is available as an option on relays providing anengineering port for easy access to settings, records andmeasurements for protection engineers. A main rearcommunications port is also available for interface to aSCADA system. A number of protocols are available asan option for this purpose.(See cortec code for each relay)Figure 5A typical substation control systemSCADAInterfaceMaster Clock(GPS)IRIG-BportModem(remote access)SCADA InterfacePx40EAI232(local access)Px30Px20Px20Mx20Px304>5
Local CommunicationThe front EIA(RS)232 communication port has beendesigned for use with the <strong>MiCOM</strong> S1 software and isprimarily for configuring the relay settings andprogrammable scheme logic. It is also used to locallyextract event, fault and disturbance record informationand can be used as a commissioning tool by viewing allrelay measurements simultaneously. In Px20 / Px30 thefront EIA(RS)232 is also used to upgrade relay software.In Px40 a separate front parallel port is used for this.215> Rear CommunicationThe rear communication port is based upon EIA(RS)485voltage levels and is designed for permanent multidropconnection to network control and data acquisitionsystems. An optional fiber optic communications port isalso supported on the 30 and 40 platforms.34In general, the following protocols are available atordering or via setting selection on the relays.• Courier/K-Bus• Modbus• IEC 60870-5-103• DNP3.0The following protocol is only available on Px30 / Px40relay models with an Ethernet port currently.• IEC61850Fig 5 illustrates the flexibility with which the MICOM rangeof relays can be integrated into a SCADA system as wellas provide engineering data for remote access by utilityengineers.USER INTERFACESThe user interface and menu text are available in English,French, German and Spanish as standard.Other languages such as for example Russian and Italianare supported on some relays depending on marketrequirements.The ability to customize the menu text and alarmdescriptions are also supported on Px30 and Px40.Figure 66Px40 series user interface110Figure 7Compact case user interfaceThe front panel user interfaces, as shown inFigures 6, 7 & 8 comprise:(1) A back-lit liquid crystal display (20, 30, 40 series)Graphic LCD display (30 series only)(2) Four fixed function LEDs (20, 40 series)Five fixed function LEDs (30 series)(3) Up to Four user programmable LEDs (20 series)Up to Eight user programmable LEDs (40 series)Twelve user programmable LEDs (30 series)(4) Menu navigation and data entry keys.(5) "READ" and "CLEAR" keys for viewing and reset ofalarms(6) An upper cover identifying the product name, whichmay be raised to view full product model number,serial number and rating information.(7) A lower cover concealing the front EIA(RS)232 port,download/monitor port and battery compartment.Cover not available on compact case.(8) Facility for fitting a security seal(9) Bay control keys up to 6 bays control (30 series)(10) Programmable Function keys(compact range and 30 series)3Figure 8Px30 series user interfacewith bay control2561542784User Language optionsthat provide true globalconvenience3789
Page 2 and 3: KEY FEATURESThe MiCOM range of rela
Page 6 and 7: GP439TRIPALARMOUT OF SERVICEHEALTHY
Page 8 and 9: MiCOM Series DataOVERCURRENT AND FE
Page 10: DISTANCE RELAYS AND PHASOR MEASUREM

MiCOM Protection - Schneider

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