ABB RELION REX640 Technical Manual page 18

Contents
5.10.4 Operation principle........................................................................................................... 1237
5.10.5 Application......................................................................................................................... 1244
5.10.6 Signals................................................................................................................................. 1248
5.10.7 DSOCPSCH Settings.........................................................................................................1250
5.10.8 DSOCPSCH Monitored data............................................................................................1250
5.10.9 Technical data.................................................................................................................... 1250
5.11 Communication logic for residual overcurrent RESCPSCH (ANSI 85 67G/N SCHLGC)........ 1251
5.11.1 Identification...................................................................................................................... 1251
5.11.2 Function block.................................................................................................................... 1251
5.11.3 Functionality....................................................................................................................... 1251
5.11.4 Operation principle........................................................................................................... 1252
5.11.5 Application......................................................................................................................... 1258
5.11.6 Signals................................................................................................................................. 1262
5.11.7 RESCPSCH Settings.......................................................................................................... 1264
5.11.8 RESCPSCH Monitored data............................................................................................. 1264
5.11.9 Technical data.................................................................................................................... 1264
5.12 Current reversal and weak-end infeed logic CRWPSCH (ANSI 85 21CREV,WEI).................... 1265
5.12.1 Identification......................................................................................................................1265
5.12.2 Function block................................................................................................................... 1265
5.12.3 Functionality...................................................................................................................... 1265
5.12.4 Analog channel configuration........................................................................................ 1266
5.12.5 Operation principle...........................................................................................................1266
5.12.6 Application......................................................................................................................... 1269
5.12.7 Signals..................................................................................................................................1271
5.12.8 CRWPSCH Settings............................................................................................................1272
5.12.9 CRWPSCH Monitored data...............................................................................................1272
5.12.10 Technical data.................................................................................................................... 1273
5.13 Current reversal and weak-end infeed logic for residual overcurrent RCRWPSCH (ANSI
85 67G/N CREV,WEI).................................................................................................................... 1274
5.13.1 Identification...................................................................................................................... 1274
5.13.2 Function block....................................................................................................................1274
5.13.3 Functionality.......................................................................................................................1274
5.13.4 Analog channel configuration......................................................................................... 1274
5.13.5 Operation principle........................................................................................................... 1275
5.13.6 Application.......................................................................................................................... 1277
5.13.7 Signals................................................................................................................................. 1279
5.13.8 RCRWPSCH Settings.........................................................................................................1280
5.13.9 RCRWPSCH Monitored data............................................................................................1280
5.13.10 Technical data.................................................................................................................... 1281
5.14 Three-phase power directional element DPSRDIR (ANSI 67P-TC)............................................ 1281
5.14.1 Identification...................................................................................................................... 1281
5.14.2 Function block....................................................................................................................1281
5.14.3 Functionality....................................................................................................................... 1281
5.14.4 Analog channel configuration.........................................................................................1282
18 REX640
Technical Manual