6.33.4 Application and Setting Notes....................................................................................770
6.33.5 Settings.....................................................................................................................771
6.33.6 Information List.........................................................................................................772
6.34 Underfrequency Load Shedding...................................................................................... 773
6.34.1 Overview of Functions...............................................................................................773
6.34.2 Structure of the Function...........................................................................................773
6.34.3 General Functionality................................................................................................ 774
6.34.3.1 Description.......................................................................................................... 774
6.34.3.2 Application and Setting Notes.............................................................................. 777
6.34.4 Stage Description...................................................................................................... 780
6.34.4.1 Description.......................................................................................................... 780
6.34.4.2 Application and Setting Notes.............................................................................. 782
6.34.5 Settings.....................................................................................................................783
6.34.6 Information List.........................................................................................................783
6.35 Rate of Frequency Change Protection.............................................................................. 785
6.35.1 Overview of Functions .............................................................................................. 785
6.35.2 Structure of the Function...........................................................................................785
6.35.3 General Functions (Undervoltage Test, df/dt Calculation)........................................... 785
6.35.3.1 Description.......................................................................................................... 785
6.35.3.2 Application and Setting Notes.............................................................................. 786
6.35.4 Stage Description...................................................................................................... 787
6.35.4.1 Description.......................................................................................................... 787
6.35.4.2 Application and Setting Notes.............................................................................. 788
6.35.5 Settings.....................................................................................................................789
6.35.6 Information List.........................................................................................................789
6.36 Vector-Jump Protection...................................................................................................791
6.36.1 Overview of Functions...............................................................................................791
6.36.2 Structure of the Function...........................................................................................791
6.36.3 General Functionality................................................................................................ 791
6.36.3.1 Description.......................................................................................................... 791
6.36.3.2 Application and Setting Notes.............................................................................. 794
6.36.3.3 Settings............................................................................................................... 794
6.36.3.4 Information List................................................................................................... 794
6.36.4 Δφ Stage...................................................................................................................795
6.36.4.1 Description.......................................................................................................... 795
6.36.4.2 Application and Setting Notes.............................................................................. 796
6.36.4.3 Settings............................................................................................................... 797
6.36.4.4 Information List................................................................................................... 797
6.36.5 I1 < Release Stage .....................................................................................................797
6.36.5.1 Description.......................................................................................................... 797
6.36.5.2 Application and Setting Notes.............................................................................. 798
6.36.5.3 Settings............................................................................................................... 798
6.36.5.4 Information List................................................................................................... 798
6.37 Power Protection (P,Q), 3-Phase...................................................................................... 799
6.37.1 Overview of Functions .............................................................................................. 799
6.37.2 Structure of the Function ..........................................................................................799
6.37.3 Active Power Stage ................................................................................................... 800
6.37.4 Reactive Power Stage ................................................................................................802
6.37.5 Application Example.................................................................................................. 803
6.37.6 Setting Notes for the Active Power Stage................................................................... 804
Table of Contents
SIPROTEC 5, Overcurrent Protection, Manual 23
C53000-G5040-C017-8, Edition 07.2017
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