ABB relion REF615 Applications Manual

Also see for relion REF615: Applications manual Point List Manual Applications manual Operation manual Product guide

Contents

OR6B1B2B3B4B5B6OTRPPTRC2_TRIPX120_BI3_CB_OPENEDTRPPTRC1_TRIP TCSSCBR_BLOCKINGGUID-8E139357-424E-400B-A463-137229E9B0DC V1 ENFigure 417: Logic for blocking trip circuit supervision3.11.3.4 Functional diagrams for control and interlockingThe main purpose of the synchronism and energizing check SECRSYN is to providecontrol over the closing of the circuit breakers in power networks to prevent theclosing, if conditions for synchronism are not detected. The energizing functionallows closing, for example, when one side of the breaker is dead.SECRSYN measures the bus and line voltages and compares them to set conditions.When all the measured quantities are within set limits, the output SYNC_OK isactivated for allowing closing or closing the circuit breaker. The SYNC_OK outputsignal of SECRSYN is connected to ENA_CLOSE input of CBXCBR through controllogic. The function is blocked in case if line side or bus side MCB is open.SECRSYN1BLOCKCL_COMMANDBYPASSSYNC_INPROSYNC_OKCL_FAIL_ALCMD_FAIL_ALLLDBLLLBDLLBDLDBSECRSYN1_SYNC_OKBLOCK_SECRSYN1 SECRSYN1_SYNC_INPROSECRSYN1_CL_FAIL_ALSECRSYN1_CMD_FAIL_ALORB1B2OX110_BI1_BUS_VT_MCB_OPENX110_BI2_LINE_VT_MCB_OPEN BLOCK_SECRSYN1GUID-48E8F4CC-1F3E-43F5-AC2A-FBB39A7AF789 V1 ENFigure 418: Synchrocheck functionTwo types of disconnector and earthing switch function blocks are available.DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 andESXSWI1 are controllable type. By default, the status only blocks are connected instandard configuration. The disconnector (CB truck) and line side earthing switchstatus information is connected to DCSXSWI1 and ESSXSI1.DCSXSWI1POSOPENPOSCLOSEOPENPOSCLOSEPOSOKPOS DCSXSWI1_OKPOSX110_BI6_CB_TRUCK_IN_TESTX110_BI5_CB_TRUCK_IN_SERVICEGUID-4A1CF602-2F56-469C-9893-BDC9F793FA03 V1 ENFigure 419: Disconnector control logic1MRS756378 S Section 3REF615 standard configurationsREF615 279Application Manual