IEC13000300-2-en.vsdDirect transfer trip (DTT)local remoteIEDIEDMUNot OKNot OKMUIEC13000300 V2 EN-USFigure 114: MU failed, 9-2 systemTable 37:Blocked protection functions if IEC/UCA 61850-9-2LE communication is interruptedand functions are connected to specific MUsFunction description IEC 61850 identification Function description IEC 61850 identificationAccidental energizingprotection forsynchronous generatorAEGPVOC Two step overvoltageprotectionOV2PTOVBroken conductorcheckBRCPTOC Four step single phaseovercurrent protectionPH4SPTOCCapacitor bankprotectionCBPGAPC Radial feederprotectionPAPGAPCPole discordanceprotectionCCPDSC Instantaneous phaseovercurrent protectionPHPIOCBreaker failureprotectionCCRBRF PoleSlip/Out-of-stepprotectionPSPPPAMBreaker failureprotection, singlephase versionCCSRBRF Restricted earth faultprotection, lowimpedanceREFPDIFCurrent circuitsupervisonCCSSPVC Two step residualovervoltage protectionROV2PTOVCompensated over-and undervoltageprotectionCOUVGAPC Rate-of-changefrequency protectionSAPFRCGeneral currrent andvoltage protectionCVGAPC OverfrequencyprotectionSAPTOFCurrent reversal andweakend infeed logicfor residualovercurrent protectionECRWPSCH UnderfrequencyprotectionSAPTUFFour step residualovercurrent protectionEF4PTOC Sudden change incurrent variationSCCVPTOCInstantaneous residualovercurrent protectionEFPIOC Sensitive Directionalresidual over currentand power protetcionSDEPSDETable continues on next pageSection 16 1MRK 504 169-UEN AStation communication314 Transformer protection RET650 2.2 IECApplication manual
