Protection and Automation Functions
6.1 Power-System Data 303
6.2 Group Indications of Overcurrent Protection Functions 322
6.3 Overcurrent Protection, Phases 323
6.4 Voltage-Dependent Overcurrent Protection, Phases 360
6.5 Overcurrent Protection, Ground 378
6.6 Directional Overcurrent Protection, Phases 408
6.7 Directional Overcurrent Protection, Ground 440
6.8 Inrush-Current Detection 486
6.9 Instantaneous High-Current Tripping 493
6.10 Arc Protection 500
6.11 Instantaneous Tripping at Switch onto Fault 519
6.12 Overcurrent Protection, 1-Phase 522
6.13 Non-Directional Intermittent Ground-Fault Protection 543
6.14 Directional Intermittent Ground-Fault Protection 551
6.15 Sensitive Ground-Fault Detection 562
6.16 Undercurrent Protection 628
6.17 Negative-Sequence Protection 633
6.18 Directional Negative-Sequence Protection 642
6.19 Thermal Overload Protection, 3-Phase - Advanced 651
6.20 Thermal Overload Protection, User-Defined Characteristic Curve 665
6.21 Thermal Overload Protection, 1-Phase 676
6.22 Unbalanced-Load Protection 686
6.23 Overvoltage Protection with 3-Phase Voltage 692
6.24 Overvoltage Protection with Zero-Sequence Voltage/Residual Voltage 704
6.25 Overvoltage Protection with Positive-Sequence Voltage 710
6.26 Overvoltage Protection with Negative-Sequence Voltage 714
6.27 Overvoltage Protection with Any Voltage 721
6.28 Overvoltage Protection with Negative-Sequence Voltage/Positive-Sequence Voltage 727
6.29 Undervoltage Protection with 3-Phase Voltage 734
6.30 Undervoltage Protection with Positive-Sequence Voltage 750
6.31 Undervoltage Protection with Any Voltage 757
6.32 Overfrequency Protection 763
6.33 Underfrequency Protection 768
6.34 Underfrequency Load Shedding 773
6
SIPROTEC 5, Overcurrent Protection, Manual 301
C53000-G5040-C017-8, Edition 07.2017
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