14.1.3.2 Single circuit breaker with double busbar, external voltage selection M12325-3 v8Line Voltage 1/2/3bus VoltageBus 1Bus 2189289LineFuseVTFuseVTFuseVT152ANSI10000094-1-en.vsdVREF1VA/VB/ VCSESRSYN (25)V3PB1*V3PB2*V3PL1*V3PL2*BLOCKBLKSYNCHBLKSCBLKENERGBUS1_OPBUS1_CLBUS2_OPBUS2_CLLINE1_OPLINE1_CLLINE2_OPLINE2_CLVB1OKVB1FFVB2OKVB2FFVL1OKVL1FFVL2OKVL2FFSTARTSYNTSTSYNCHTSTSCTSTENERGAENMODEMENMODESYNOKAUTOSYOKAUTOENOKMANSYOKMANENOKTSTSYNOKTSTAUTSYTSTMANSYTSTENOKVSELFAILB1SELB2SELL1SELL2SELSYNPROGRSYNFAILVOKSYNVDIFFSYNFRDIFSYNFRDIFFOKFRDERIVAVOKSCVDIFFSCFRDIFFAPHDIFFAFRDIFFMPHDIFFMINADVCLSVDIFFMEFRDIFFMEPHDIFFMEVbusVLineMODEAENMODEMENANSI10000094 V1 EN-USFigure 109: Connection of SESRSYN (25) function block in a single breaker,double busbar arrangement with external voltage selectionIn this type of arrangement no internal voltage selection is required. The voltageselection is made by external relays typically connected according to figure 109.Suitable voltage and VT fuse failure supervision from the two busbars are selectedbased on the position of the busbar disconnectors. This means that the connections tothe function block will be the same as for the single busbar arrangement. The voltageselection parameter CBConfig is set to No voltage sel.Section 14 1MRK 511 401-UUS AControl312 Bay control REC670 2.2 ANSIApplication manual
