施耐德RM4T相序保护器说明书

2ZelioControl-industrialmeasurementandcontrolrelays33-phasesupplycontrolrelaysRM4TFunctionsThesedevicesaredesignedtomonitor3-phasesuppliesandtoprotectmotorsandotherloadsagainstthefaultslistedinthetablebelow.Theyhaveatransparent,hingedflapontheirfrontfacetoavoidanyaccidentalalterationofthesettings.Thisflapcanbedirectlysealed.RM4TGRM4TURM4TRRM4TAMonitoringofrotationaldirectionofphasesDetectionofcompletefailureofoneormoreofthephasesUndervoltagedetectionOvervoltageandundervoltagedetection(2thresholds)Detectionofphaseasymmetry(imbalance)FunctionperformedFunctionnotperformedApplicationsControlforconnectionofmovingequipment(siteequipment,agriculturalequipment,refrigeratedtrucks).Controlforprotectionofpersonsandequipmentagainsttheconsequencesofreverserunning(lifting,handling,elevators,escalators,etc.).Controlofsensitive3-phasesupplies.Protectionagainsttheriskofadrivingload(phasefailure).Normal/emergencypowersupplyswitching.PresentationRM4TGRM4TURYellowLED:indicatesrelayoutputstate.URedLED:undervoltagefault.1Undervoltagesettingpotentiometer.RM4TR31,RM4TR33,RM4TR32RM4TR341Timedelayfunctionselector:FaultdetectiondelayedFaultdetectionextended2Potentiometerforsettingtimedelayinseconds.3Potentiometerforsettingovervoltageasadirectvalue.4Potentiometerforsettingundervoltageasadirectvalue.RYellowLED:indicatesrelayoutputstate.UGreenLED:indicatesthatsupplytotheRM4ison.URedLED:overvoltagefault.URedLED:undervoltagefault.PRedLED:phasefailureorincorrectrotationaldirectionofphases.RM4TA3RM4TA01Asymmetrythresholdsettingpotentiometer,from5to15%.2Potentiometerforsettingtimedelay,0.1to10s.RYellowLED:indicatesrelayoutputstate.UGreenLED:indicatesthatsupplytotheRM4ison.ARedLED:phaseasymmetry.PRedLED:phasefailureorincorrectrotationaldirectionofphases.bbbbbRM4T561011RM4T561011References:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7References:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7References:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7References:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7RR1RU1RU3412RUUPU12RUUPU3412RUUPU12RUUPU12RUPA1R12RUPA1RPresentation328473-EN_Ver12.0.indd123456789103ZelioControl-industrialmeasurementandcontrolrelays33-phasesupplycontrolrelaysRM4TOperatingprincipleThesupplyvoltagetobemonitoredisconnectedtoterminalsL1,L2,L3oftheproduct.ThereisnoneedtoprovideaseparatepowersupplyforRM4Trelays,theyareself-poweredbyterminalsL1,L2,L3.Monitoringrotationaldirectionofphasesanddetectionofcompletefailureofoneormorephases(RM4Tallmodels):WhenterminalsL1,L2,L3areenergised,therelayisenergisedandtheyellowLEDcomesoniftherotationaldirectionofphasesiscorrectandifall3phasesarepresent.Ifoneormoreofthephaseshavefailedoriftherotationaldirectionisincorrect,therelayisnotenergisedatswitch-on.Innormaloperation(nofault)therelayisenergised;itde-energisesinstantaneouslyintheeventoffailureofoneormoreofthephases(anytimedelaysetisnotactiveonthesefaults).Intheeventoffailureorabsenceofasinglephase,avoltagegreaterthanthedetectionthreshold(≈130VonRM4TG,undervoltagethresholdsettingonRM4TUandRM4TR)canbegeneratedbackthroughthecontrolcircuit,thuspreventingdetectionofthephasefailure.Inthiscase,werecommendtheuseofRM4TArelays.Theabsenceofaphaseissignalled,onRM4TRandRM4TA,byilluminationofLED“P”.Overvoltageandundervoltagedetection(RM4TR):Innormaloperation,therelayisenergisedandLEDs“U”and“R”areilluminated.Iftheaverageofthe3voltagesbetweenphasesgoesoutsidetherangetobemonitored,theoutputrelayisde-energised:overvoltage:theredLED“U”illuminates,undervoltage:theredLED“U”illuminates.Whenthesupplyreturnstowardsitsratedvalue,therelayisre-energisedaccordingtothehysteresisvalue(5%)andthecorrespondingredLEDgoesout.Aselectorswitchallowsselectionofanadjustabletimedelayfrom0.1sto10s.Withfunctiontransient“over”or“under”voltagesarenottakenintoaccount.Withfunctionallvariationsaboveorbelowaretakenintoaccountandre-energisationoftherelayisdelayed.Inallcases,inordertobedetected,thedurationoftheovervoltageorundervoltagemustbegreaterthanthemeasuringcycletime(80ms).Functiondiagram(RM4TR31,RM4TR32)Functiondiagram(RM4TR33,RM4TR34)bvvvvvbvv--vvvttttttttt15/1825/2815/1625/2615/1825/2815/1625/26RM4TR31RM4TR32UL1L2L30VoltSettingU0.95xSettingU1.05xSettingUSettingUFunctionFunctiont:timedelayttttttttt15/1825/2815/1625/2615/1825/2815/1625/26RM4TR31RM4TR32UL1L2L30VoltSettingU0.95xSettingU1.05xSettingUSettingUFunctionFunctiont:timedelayttttttt15/1825/2815/1625/2615/1825/2815/1625/26242V440V230V418V208V378V198V360VRM4TR33RM4TR34TR33TR34UL1L2L3tt0Voltt:timedelayFunctionFunctionttttttt15/1825/2815/1625/2615/1825/2815/1625/26242V440V230V418V208V378V198V360VRM4TR33RM4TR34TR33TR34UL1L2L3tt0Voltt:timedelayFunctionFunctionReferences:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7References:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7References:page28473/6Characteristics:page28473/5Dimensions,schemes:page28473/7References:page28473/6Charact