10.1.3.2 Single circuit breaker with double busbar, external voltage selectionBus 1Bus 2LineFuseVTFuseVTFuseVTANSI11000165-2-en.vsdVBus SMAISMAIVLineGRP_OFF189289BKR1SESRSYN (25)V3PB1*V3PB2*V3PL1*V3PL2*BLOCKBLKSYNCHBLKSCBLKENERGBUS1_OPBUS1_CLBUS2_OPBUS2_CLLINE1_OPLINE1_CLLINE2_OPLINE2_CLVB1OKVB1FFVB2OKVB2FFVL1OKVL1FFVL2OKVL2FFSTARTSYNTSTSYNCHTSTSCTSTENERGAENMODEMENMODESYNOKAUTOSYOKAUTOENOKMANSYOKMANENOKTSTSYNOKTSTAUTSYTSTMANSYTSTENOKVSELFAILB1SELB2SELL1SELL2SELSYNPROGRSYNFAILFRDIFSYNFRDERIVAVOKSCVDIFFSCFRDIFFAPHDIFFAFRDIFFMPHDIFFMINADVCLSVDIFFMEFRDIFFMEPHDIFFMEVbusVLineMODEAENMODEMEN52ANSI11000165 V2 ENFigure 74: Connection of SESRSYN (25) function block in a single breaker, doublebusbar arrangement with external voltage selectionIn this type of arrangement no internal voltage selection is required. The voltage selectionis made by external relays typically connected according to figure 74. Suitable voltage andVT fuse failure supervision from the two busbars are selected based on the position of thebusbar disconnectors. This means that the connections to the function block will be thesame as for the single busbar arrangement. The voltage selection parameter CBConfig isset to No voltage sel.1MRK 511 286-UUS A Section 10Control191Application manual
