Internal signals Source of destination DescriptionblockRemoteTerm2 Signal from LDCM Block from remote terminal 2testModeInput Signal from test mode function Input for forcing the functioninto test modediffTripL1 Signal from differential function Trip from local differentialfunction in phase L1diffTripL2 Signal from differential function Trip from local differentialfunction in phase L2diffTripL3 Signal from differential function Trip from local differentialfunction in phase L3tripL1RemoteTerm1 Signal from LDCM Trip from remote terminal 1 inphase L1tripL1RemoteTerm2 Signal from LDCM Trip from remote terminal 2 inphase L1tripL2RemoteTerm1 Signal from LDCM Trip from remote terminal 1 inphase L2tripL2RemoteTerm2 Signal from LDCM Trip from remote terminal 2 inphase L2tripL3RemoteTerm1 Signal from LDCM Trip from remote terminal 1 inphase L3tripL3RemoteTerm2 Signal from LDCM Trip from remote terminal 2 inphase L3tripL1ToRemote Signal to LDCM Trip to remote terminals phaseL1tripL2ToRemote Signal to LDCM Trip to remote terminals phaseL2tripL3ToRemote Signal to LDCM Trip to remote terminals phaseL3localDiffBlock Signal to differential function Block local line differentialfunction operationblockToRemote Signal to LDCM Block to be sent to remoteterminalstestModeToRemote Signal to LDCM Test mode indication to be sentto remote terminals6.1.8 Technical data IP14336-1 v1M16023-1 v9Table 42:LT3CPDIF technical dataFunction Range or value AccuracyMinimum operate current (20-200)% ofIBase ±1.0% of Ir at I ≤ Ir±1.0% of I at I > IrSlopeSection2 (10.0-50.0)% -SlopeSection3 (30.0-100.0)% -EndSection 1 (20–150)% ofIBase -EndSection 2 (100–1000)% ofIBase -Table continues on next page1MRK 505 394-UEN A Section 6Differential protectionLine differential protection RED650 2.2 IEC 109Technical manual
