ABB RELION REX640 Technical Manual page 14

Contents
4.4.1 Negative-sequence overcurrent protection NSPTOC (ANSI 46M)............................. 819
4.4.2 Directional negative-sequence overcurrent protection DNSPDOC (ANSI 67Q)......825
4.4.3 Phase discontinuity protection PDNSPTOC (ANSI 46PD)........................................... 832
4.4.4 Phase reversal protection PREVPTOC (ANSI 46R).........................................................837
4.4.5 Negative-sequence overcurrent protection for machines MNSPTOC (ANSI 46M).841
4.5 Voltage protection..............................................................................................................................850
4.5.1 Three-phase overvoltage protection PHPTOV (ANSI 59)............................................ 850
4.5.2 Three-phase undervoltage protection PHPTUV (ANSI 27)..........................................858
4.5.3 Residual overvoltage protection ROVPTOV (ANSI 59G/ 59N)....................................866
4.5.4 Positive-sequence overvoltage protection PSPTOV (ANSI 59PS)..............................870
4.5.5 Negative-sequence overvoltage protection NSPTOV (ANSI 59NS)........................... 875
4.5.6 Positive-sequence undervoltage protection PSPTUV (ANSI 27PS)............................879
4.5.7 Overexcitation protection OEPVPH (ANSI 24)...............................................................884
4.5.8 Low-voltage ride-through protection LVRTPTUV (ANSI 27RT).................................. 900
4.5.9 Voltage vector shift protection VVSPPAM (ANSI 78VS)...............................................908
4.5.10 Three-phase overvoltage variation protection PHVPTOV (ANSI 59.S1) ................... 913
4.6 Frequency protection.........................................................................................................................920
4.6.1 Frequency protection FRPFRQ (ANSI 81)....................................................................... 920
4.6.2 Load-shedding and restoration LSHDPFRQ (ANSI 81LSH)......................................... 928
4.7 Impedance protection....................................................................................................................... 940
4.7.1 Distance protection DSTPDIS (ANSI 21P, 21N)...............................................................940
4.7.2 Out of step OOSRPSB (ANSI 78PS)................................................................................1005
4.7.3 Three-phase underexcitation protection UEXPDIS (ANSI 40).................................. 1015
4.7.4 Three-phase underimpedance protection UZPDIS (ANSI 21G) ............................... 1026
4.7.5 Directional negative sequence impedance protection DNZPDIS (ANSI Z2Q)....... 1038
4.7.6 Power swing detection DSTRPSB (ANSI 68)................................................................ 1046
4.8 Power protection...............................................................................................................................1055
4.8.1 Underpower protection DUPPDPR (ANSI 32U)............................................................1055
4.8.2 Reverse power-directional overpower protection DOPPDPR (ANSI 32R/32O)..... 1062
4.8.3 Directional reactive power undervoltage protection DQPTUV (ANSI 32Q,27).......1071
4.8.4 Underpower factor protection MPUPF (ANSI 55U).....................................................1078
4.9 Arc protection ARCSARC (ANSI AFD).............................................................................................1085
4.9.1 Identification..................................................................................................................... 1085
4.9.2 Function block................................................................................................................... 1085
4.9.3 Functionality...................................................................................................................... 1085
4.9.4 Analog channel configuration........................................................................................ 1085
4.9.5 Operation principle.......................................................................................................... 1086
4.9.6 Application..........................................................................................................................1087
4.9.7 Signals................................................................................................................................. 1091
4.9.8 ARCSARC Settings.............................................................................................................1092
4.9.9 ARCSARC Monitored data................................................................................................1092
4.9.10 Technical data ................................................................................................................... 1093
4.10 Motor start-up supervision STTPMSU (ANSI 49,66,48,50TDLR)............................................. 1093
4.10.1 Identification......................................................................................................................1093
14 REX640
Technical Manual