Section 1 Section 2A1A2_DC(BS)B1B2_DC(BS)BH_LINE(WA1)A1(WA2)B1 B2A2en04000503.vsdBH_LINE BH_LINE BH_LINEIEC04000503 V1 EN-USFigure 74: Busbars divided by bus-section disconnectors (circuit breakers)The project-specific logic is the same as for the logic for the double-breakerconfiguration.SignalS1DC_OP All disconnectors on bus-section 1 are open.S2DC_OP All disconnectors on bus-section 2 are open.VPS1_DC The switch status of disconnectors on bus-section 1 is valid.VPS2_DC The switch status of disconnectors on bus-section 2 is valid.EXDU_BB No transmission error from breaker and a half (BH) that contains the aboveinformation.8.3.7 Interlocking for busbar earthing switch BB_ES IP14164-1 v48.3.7.1 Application M15015-3 v7The interlocking for busbar earthing switch (BB_ES) function is used for onebusbar earthing switch on any busbar parts according to figure 75.QCen04000504.vsdIEC04000504 V1 EN-USFigure 75: Switchyard layout BB_ESM15053-4 v4The signals from other bays connected to the module BB_ES are described below.8.3.7.2 Signals in single breaker arrangement M15053-6 v5The busbar earthing switch is only allowed to operate if all disconnectors of thebus-section are open.Section 8 1MRK 511 423-UEN AControl152 Bay control REC650 2.2 IECApplication manual
