ABB RELION 670 Series Technical Manual page 12

Table of contents
7.7.7 Technical data................................................................................................................................... 291
7.8 High speed distance protection ZMFPDIS (21)...............................................................................291
7.8.1 Identification.....................................................................................................................................291
7.8.2 Functionality......................................................................................................................................291
7.8.3 Function block.................................................................................................................................. 293
7.8.4 Signals................................................................................................................................................294
7.8.5 Settings..............................................................................................................................................296
7.8.6 Monitored data.................................................................................................................................301
7.8.7 Operation principle..........................................................................................................................302
7.8.7.1 Filtering.......................................................................................................................................... 302
7.8.7.2 Distance measuring zones..........................................................................................................302
7.8.7.3 Phase-selection element............................................................................................................. 303
7.8.7.4 Directional element......................................................................................................................305
7.8.7.5 Fuse failure.................................................................................................................................... 305
7.8.7.6 Measuring principles................................................................................................................... 306
7.8.7.7 Load encroachment......................................................................................................................316
7.8.7.8 Simplified logic schemes............................................................................................................. 317
7.8.7.9 Measurement.................................................................................................................................323
7.8.8 Technical data...................................................................................................................................328
7.9 High speed distance protection for series compensated lines ZMFCPDIS (21)...................... 329
7.9.1 Identification.................................................................................................................................... 329
7.9.2 Functionality..................................................................................................................................... 329
7.9.3 Function block.................................................................................................................................. 330
7.9.4 Signals.................................................................................................................................................331
7.9.5 Settings.............................................................................................................................................. 333
7.9.6 Monitored data................................................................................................................................ 340
7.9.7 Operation principle.......................................................................................................................... 341
7.9.7.1 Filtering...........................................................................................................................................341
7.9.7.2 Distance measuring zones.......................................................................................................... 341
7.9.7.3 Phase-selection element............................................................................................................. 342
7.9.7.4 Directional element...................................................................................................................... 343
7.9.7.5 Fuse failure.................................................................................................................................... 344
7.9.7.6 Power swings................................................................................................................................ 344
7.9.7.7 Measurement principles............................................................................................................. 344
7.9.7.8 Load encroachment..................................................................................................................... 356
7.9.7.9 Simplified logic schemes.............................................................................................................357
7.9.7.10 Measurement.................................................................................................................................362
7.9.8 Technical data...................................................................................................................................367
7.10 Pole slip protection PSPPPAM (78)................................................................................................... 367
7.10.1 Identification.....................................................................................................................................367
7.10.2 Functionality..................................................................................................................................... 367
7.10.3 Function block.................................................................................................................................. 369
7.10.4 Signals................................................................................................................................................369
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Technical manual