We take care of it.

EORSys

An expert solution is within your reach.•Systemsolutionforcompensated,

isolatedandsolidlygroundedgrids

•Precisecontrolofarcsuppressioncoils

•Reliablelocatingofearthfaults

•Detectionofrestrikingfaults

•Detectionofshortcircuits

•Faultdatarecording

•Extensivecommunicationcapabilities

fordevicesremoteconnection

•Servicing,commissioningandfailure

analysis

EORSys

Transient method using the qu2 principle, suitable for detection•offaultsupto3kOhm•ofparallelcablesandinringgrids•offaultsinspurcables

Detecting restriking faults using the qui method•directionaldisplayofrestrikingfaults•faultindication

Watt-metric Method cos(ϕ)•forWattresidualcurrent•forWattresidualpowerincrease withadditionalresistance

Harmonic method for 250 Hz

Harmonic method for locating with ripple control signals

Pulse location method •classicalwithcapacitors•fastpulselocation

Short-circuit detection using the definite time overcurrent principle (EOR-3D only)•directional•non-directional

TheEORSysproductfamilyoffersacompletesolutionforgridswithresonantearthed,isolatedandsolidlygroundedneutral .

Solutions for compensated grids

Usingthecontrollerforvariablearcsuppressioncoils(REG-DPandREG-DPA)youcancomfortablyregulateincompensatedgridstothecorrecttuningpoint.Ifregulationisabitmorecomplicatedormoredifficultduetonon-linearloads,theoptionalyavailableREG-DPandREG-DPAcurrentinjec-tionprovidesaremedy.Thecurrentinjectionenablesprecisecompensa-tion/tuningofthearcsuppressioncoilsunderthemostdifficultconditions.

Ifanearthfaultoccursinthegrid,multipleA.Eberledevicesaresi-multaneouslyavailabletoaccuratelylocateit.Thefollowinglocalisationmethodsareincludedfordetectionincompensatedgrids:

EORSysproductrangedeployment

Quickly locating earth faults. Safe control of Petersen coils

Earthfaulttests-restrikingfaults

EORSys

Solution for isolated grids

Indistributiongridswithaninsolatedneutralthefollowingdetectionproce-duresareavailable.

Transient method using the qu2 principle, suitable for location•inparallelcablesandinringgrids•offaultsinradialfeeders

Detecting restriking faults using the qui method•directionaldisplayofrestrikingfaults•faultindicationdisplay

Harmonics method sin(ϕ)

Harmonic method for 250 Hz

Harmonic method for locating with ripple control signals

Short-circuit detection using the definite time overcurrent principle (EOR-3D only)•directional•non-directional

Engineering serviceControl

Location

Report

Data analysis

Solution for rigid/low impedance grounded systems

Insolidlyorlow-impedancegroundedgrids,nosignificantincreaseinthezerosequencevoltageoccurswithasingle-phasefault.Inaddition,thefaultcurrent,whencomparedtocompensatedandisolatedgridsismuchhigherinthatcase.Onlyoneformoffaultdetectionremainsthenavailable.

Short-circuit detection using the definite time overcurrent principle (EOR-3D only)•directional•non-directional

EORSys

A Controller for arc suppression coils

REG-DPandREG-DPA

TheREG-DPdevices(19"technology)andREG-DPA(industrialenclosures)areprimarilyusedfortheauto-tuningofadjustablearcsuppressioncoils.Theyareusedincoilsinmediumvoltagegridsandhigh-voltagegridsupto110kV.

Forgoodcontrolperformance,thephaseangleinformationistakenintoaccountinadditiontothevalueofthezerosequencevoltage.Consequently,evensmallchangesinthevaluescanbecompensated.

Ofcourse,eachcontrollercanperformothertasksthatsupportthecontrolorevenapossibleearthfaultlocalisation.

Thecontrollersalsoprovidethefollow-ingfeatures:

•Controlforfixedcoils,parallelfor plunge-corecoils•Parallelcontrolofplunge-corecoils throughcommunicationbetween controldevices•Parallelcontrolofplunge-core coilswithoutcommunication betweencontroldevices•ControllingtheresistorfortheWatt residualcurrentincrease;includingthe thermalimageoftheresistanceand thusoverheatingprotection•Connectionandcontrolofthe currentinjection•Compensationduringanearthfault (onlyincombinationwiththeEOR-D)•Controlofthepulsingcurrentfor classicalpulselocatingmethod

Thecontrolofthepulsingcurrentcanbefreelyprogrammedindividuallytoyourrequirements.

Henceaprogramensuresthecorrectdegreeofovercompensation,thecon-trolofthepulsedevicesandthemoni-toringofthepulsecycles.

Forcommunicationwiththecontrolcentretherearesufficientrelayoutputsorallcurrentcommunicationprotocolsavailable.

Current injection

ThecontrolofarcsuppressioncoilscanbedifficultundercertainconditionsWhy?Becauseoftheincreasinglevelofcablingofmoderngrids.Thisincreasesthenaturalsymmetryoftheconductor.

Petersencoilwithintegratedcurrentinjection

EORSys

Ontheotherhand,itreducesthemag-nitude(zerosequencevoltage),whichisusedforthecontrolpurpose.

Thecurrentinjectioniscapable,withouttheadjustmentoftheplunge-corecoil,toidentifythetuningpointbyapplyingadefinedsignal.Thusitisparticularlysuitableforthesedifficultsituations:

•Verysmallzerosequencevoltage•Unstablezerosequencevoltagedue toloadcrosstalk

•Changingthenaturalsymmetryper phaseatconstanttotalcapacity

Theso-calledcurrentinjectionwasdevelopedpreciselyforsuchcases.

REG-DP/DPA: The expert solution.

Unstable history of the zero sequence voltage over 14 days with a constant grid capacity

EORSysProductrange:ThePetersencoilcontrolandfaultlocationsystem

EORSys

EOR-D earth fault locating relay

Reliableearthfaultlocationisnecessaryincompensatedandisolatedgridsduetothelowfaultcurrents.

TheEOR-Dprovidestheabilitytomonitor4outputfieldsforearthfaultsperunit.Multipledevicescanbecon-nectedtoasinglesystem.Theadvan-tageisthatoneneedsonlyonecon-figurationfortheearthfaultrecordingpersubstationorperstation.Inaddi-tion,thissimplifiestheremotecontrolcenterconnection.Onlyoneprotocolconverterisrequiredforeachsystem.

Sinceeachgridisdifferent,thereisnoonelocationmethodforallsituations.TheEOR-Dprovidesachoiceofsev-eralmethods:

•Directionaltransientdetectionusing thequ2method•Directionaldetectionofrestriking faultsusingthequimethod•Directionaldetectionusingthe harmonicmethod•Localisationusingripple-control signalsandtheharmonicmethod•watt-metricmethodcos(ϕ)•Pulselocationmethod•Harmonicsmethodsin(ϕ)usedfor isolatedgrids

Combined earth fault and short circuit indicator - EOR-3D

Thedevicefordirectionaldetectionofearthfaultsandshort-circuitsforasingleoutputfieldistheEOR-3D.ItcanhandlealllocalisationmethodsusingthesamealgorithmsastheEOR-D.Inaddition,ithasdirectionalornon-directionalshort-circuitdetection.

Duetoitscompactdesign,itisalsoeasytoinstallinsmallstations.

EORSys

Special features of the EOR-3D

•4GBofinternalmemoryforfault recordinginsecondranges -oscilloscoperecording -displayofthedigitaltraces•CommunicationusingTCP/IP, USB2.0,RS232,RS485•colourOLEDdisplay•forlocaloperationviakeyboard andgraphicdisplay•integratedcontrolprotocolsfor –IEC60870-5-101/103/104 –MODBUSRTUandTCP –DNP3.0RS485andTCP•Useincombinationwithconven- tionaltransducersandsensors

One system, many solutions

EOR-3DDINrailversion

EOR-1ESwithloadcurrentmonitoring

EOR-3Dindustrialhousing

NEW! EOR-1 - simple earth fault and short circuit indicator with matching sen-sors in set for cables and overhead lines

TheEOR-1rangeofdevicesissuitableforwideuseinallformsofgrids.Theyarecharacterizedbytheirsimplicityofoperationandinstallation:

•Earthfaultandshortcircuitindica- torusingcurrentdetection•Signallingthroughrelaycontacts•Externalsignallingunitsavailable•Nooperatingsoftwarenecessary•Powersupplyfrominternal battery(externalpowersupply availableasoption)

•unexpensiveandrobustcurrent sensorsforallcommonconductor diameters•Currentsensorsfordirectwire installation(withfibre-opticoutput)•Remotesignallingthroughrelay contacts•EOR-1ESmodelwithintegrated MODBUSmodulewithpower savingmode-noexternalsupply needed!•Overheadlineindicatorwithremote controlanddatareadout

A. Eberle GmbH & Co. KGFrankenstraße160D-90461NurembergFon +49(0)911628108-0Fax +49(0)911628108-99Email info@a-eberle.deWeb www.a-eberle.deEO

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Yoursalespartner

Protocol REG-DPREG-DPA

EOR-D EOR-3D EOR-1 ES

MODBUS RTU x x x

MODBUS TCP x x

DNP 3.0 x x x

DNP 3.0 TCP x x x

IEC 60870-5-101 x x x

IEC 60870-5-103 x x x

IEC 60870-5-104 x x x

IEC 61850 (Ed. 1/2 x x

REG-DP/REG-DPA–Thecontrollerforplunge-corecoils.

EOR-D–Earthfaultdetectionforsubstationsandstationswithmultiplefeeders.

EOR-3D–Earthfaultandshortcircuitindicator forsubstations,compactstationsuptolocalgridstationswithspecialrequirements.

EOR-1 ES–Earthfaultandshortcircuitindicatorforcompactandlocalgridstations;optimizedandreducedtoessentialfunctions.

AlldevicesintheEORSysrangecanbeconnectedeasilyusingcontroltech-nology.Thereareenoughrelayoutputsavailableforconventionaltelecontrol.Alternatively,thedevicessupportthefollowingcommunicationprotocols:

Remote signalling/communication