Section 15 Logic15.1 Tripping logic common 3-phase output SMPPTRC15.1.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberTripping logic common 3-phase output SMPPTRCI->OSYMBOL-K V1 EN9415.1.2 FunctionalityA function block for protection tripping is provided for each circuit breaker involvedin the tripping of the fault. It provides a settable pulse prolongation to ensure a trippulse of sufficient length, as well as all functionality necessary for correct co-operation with autoreclosing functions.The trip function block also includes a settable latch functionality for evolving faultsand breaker lock-out.15.1.3 Function blockIEC05000707-2-en.vsdSMPPTRCBLOCKBLKLKOUTTRINTRINL1TRINL2TRINL3PSL1PSL2PSL31PTRZ1PTREFP3PTRSETLKOUTRSTLKOUTTRIPTRL1TRL2TRL3TR1PTR2PTR3PCLLKOUTIEC05000707 V2 ENFigure 366: SMPPTRC function block1MRK502052-UEN B Section 15Logic791Technical manual